diff options
Diffstat (limited to 'arch/s390/include/asm')
147 files changed, 5775 insertions, 6161 deletions
diff --git a/arch/s390/include/asm/Kbuild b/arch/s390/include/asm/Kbuild index 287d7bbb6d3..57892a8a905 100644 --- a/arch/s390/include/asm/Kbuild +++ b/arch/s390/include/asm/Kbuild @@ -1,15 +1,7 @@ -include include/asm-generic/Kbuild.asm -header-y += chpid.h -header-y += chsc.h -header-y += cmb.h -header-y += dasd.h -header-y += debug.h -header-y += kvm_virtio.h -header-y += monwriter.h -header-y += qeth.h -header-y += schid.h -header-y += tape390.h -header-y += ucontext.h -header-y += vtoc.h -header-y += zcrypt.h + +generic-y += clkdev.h +generic-y += hash.h +generic-y += mcs_spinlock.h +generic-y += preempt.h +generic-y += trace_clock.h diff --git a/arch/s390/include/asm/airq.h b/arch/s390/include/asm/airq.h index 1ac80d6b058..bd93ff6661b 100644 --- a/arch/s390/include/asm/airq.h +++ b/arch/s390/include/asm/airq.h @@ -1,7 +1,5 @@ /* - * include/asm-s390/airq.h - * - * Copyright IBM Corp. 2002,2007 + * Copyright IBM Corp. 2002, 2007 * Author(s): Ingo Adlung <adlung@de.ibm.com> * Cornelia Huck <cornelia.huck@de.ibm.com> * Arnd Bergmann <arndb@de.ibm.com> @@ -11,9 +9,95 @@ #ifndef _ASM_S390_AIRQ_H #define _ASM_S390_AIRQ_H -typedef void (*adapter_int_handler_t)(void *, void *); +#include <linux/bit_spinlock.h> -void *s390_register_adapter_interrupt(adapter_int_handler_t, void *, u8); -void s390_unregister_adapter_interrupt(void *, u8); +struct airq_struct { + struct hlist_node list; /* Handler queueing. */ + void (*handler)(struct airq_struct *); /* Thin-interrupt handler */ + u8 *lsi_ptr; /* Local-Summary-Indicator pointer */ + u8 lsi_mask; /* Local-Summary-Indicator mask */ + u8 isc; /* Interrupt-subclass */ + u8 flags; +}; + +#define AIRQ_PTR_ALLOCATED 0x01 + +int register_adapter_interrupt(struct airq_struct *airq); +void unregister_adapter_interrupt(struct airq_struct *airq); + +/* Adapter interrupt bit vector */ +struct airq_iv { + unsigned long *vector; /* Adapter interrupt bit vector */ + unsigned long *avail; /* Allocation bit mask for the bit vector */ + unsigned long *bitlock; /* Lock bit mask for the bit vector */ + unsigned long *ptr; /* Pointer associated with each bit */ + unsigned int *data; /* 32 bit value associated with each bit */ + unsigned long bits; /* Number of bits in the vector */ + unsigned long end; /* Number of highest allocated bit + 1 */ + spinlock_t lock; /* Lock to protect alloc & free */ +}; + +#define AIRQ_IV_ALLOC 1 /* Use an allocation bit mask */ +#define AIRQ_IV_BITLOCK 2 /* Allocate the lock bit mask */ +#define AIRQ_IV_PTR 4 /* Allocate the ptr array */ +#define AIRQ_IV_DATA 8 /* Allocate the data array */ + +struct airq_iv *airq_iv_create(unsigned long bits, unsigned long flags); +void airq_iv_release(struct airq_iv *iv); +unsigned long airq_iv_alloc(struct airq_iv *iv, unsigned long num); +void airq_iv_free(struct airq_iv *iv, unsigned long bit, unsigned long num); +unsigned long airq_iv_scan(struct airq_iv *iv, unsigned long start, + unsigned long end); + +static inline unsigned long airq_iv_alloc_bit(struct airq_iv *iv) +{ + return airq_iv_alloc(iv, 1); +} + +static inline void airq_iv_free_bit(struct airq_iv *iv, unsigned long bit) +{ + airq_iv_free(iv, bit, 1); +} + +static inline unsigned long airq_iv_end(struct airq_iv *iv) +{ + return iv->end; +} + +static inline void airq_iv_lock(struct airq_iv *iv, unsigned long bit) +{ + const unsigned long be_to_le = BITS_PER_LONG - 1; + bit_spin_lock(bit ^ be_to_le, iv->bitlock); +} + +static inline void airq_iv_unlock(struct airq_iv *iv, unsigned long bit) +{ + const unsigned long be_to_le = BITS_PER_LONG - 1; + bit_spin_unlock(bit ^ be_to_le, iv->bitlock); +} + +static inline void airq_iv_set_data(struct airq_iv *iv, unsigned long bit, + unsigned int data) +{ + iv->data[bit] = data; +} + +static inline unsigned int airq_iv_get_data(struct airq_iv *iv, + unsigned long bit) +{ + return iv->data[bit]; +} + +static inline void airq_iv_set_ptr(struct airq_iv *iv, unsigned long bit, + unsigned long ptr) +{ + iv->ptr[bit] = ptr; +} + +static inline unsigned long airq_iv_get_ptr(struct airq_iv *iv, + unsigned long bit) +{ + return iv->ptr[bit]; +} #endif /* _ASM_S390_AIRQ_H */ diff --git a/arch/s390/include/asm/appldata.h b/arch/s390/include/asm/appldata.h index 79283dac828..32a70598715 100644 --- a/arch/s390/include/asm/appldata.h +++ b/arch/s390/include/asm/appldata.h @@ -1,7 +1,5 @@ /* - * include/asm-s390/appldata.h - * - * Copyright (C) IBM Corp. 2006 + * Copyright IBM Corp. 2006 * * Author(s): Melissa Howland <melissah@us.ibm.com> */ @@ -72,7 +70,7 @@ static inline int appldata_asm(struct appldata_product_id *id, int ry; if (!MACHINE_IS_VM) - return -ENOSYS; + return -EOPNOTSUPP; parm_list.diag = 0xdc; parm_list.function = fn; parm_list.parlist_length = sizeof(parm_list); diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h index 8517d2ae3b5..fa934fe080c 100644 --- a/arch/s390/include/asm/atomic.h +++ b/arch/s390/include/asm/atomic.h @@ -1,8 +1,5 @@ -#ifndef __ARCH_S390_ATOMIC__ -#define __ARCH_S390_ATOMIC__ - /* - * Copyright 1999,2009 IBM Corp. + * Copyright IBM Corp. 1999, 2009 * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>, * Denis Joseph Barrow, * Arnd Bergmann <arndb@de.ibm.com>, @@ -13,27 +10,66 @@ * */ +#ifndef __ARCH_S390_ATOMIC__ +#define __ARCH_S390_ATOMIC__ + #include <linux/compiler.h> #include <linux/types.h> -#include <asm/system.h> +#include <asm/barrier.h> +#include <asm/cmpxchg.h> #define ATOMIC_INIT(i) { (i) } -#define __CS_LOOP(ptr, op_val, op_string) ({ \ +#define __ATOMIC_NO_BARRIER "\n" + +#ifdef CONFIG_HAVE_MARCH_Z196_FEATURES + +#define __ATOMIC_OR "lao" +#define __ATOMIC_AND "lan" +#define __ATOMIC_ADD "laa" +#define __ATOMIC_BARRIER "bcr 14,0\n" + +#define __ATOMIC_LOOP(ptr, op_val, op_string, __barrier) \ +({ \ + int old_val; \ + \ + typecheck(atomic_t *, ptr); \ + asm volatile( \ + __barrier \ + op_string " %0,%2,%1\n" \ + __barrier \ + : "=d" (old_val), "+Q" ((ptr)->counter) \ + : "d" (op_val) \ + : "cc", "memory"); \ + old_val; \ +}) + +#else /* CONFIG_HAVE_MARCH_Z196_FEATURES */ + +#define __ATOMIC_OR "or" +#define __ATOMIC_AND "nr" +#define __ATOMIC_ADD "ar" +#define __ATOMIC_BARRIER "\n" + +#define __ATOMIC_LOOP(ptr, op_val, op_string, __barrier) \ +({ \ int old_val, new_val; \ + \ + typecheck(atomic_t *, ptr); \ asm volatile( \ " l %0,%2\n" \ "0: lr %1,%0\n" \ op_string " %1,%3\n" \ " cs %0,%1,%2\n" \ " jl 0b" \ - : "=&d" (old_val), "=&d" (new_val), \ - "=Q" (((atomic_t *)(ptr))->counter) \ - : "d" (op_val), "Q" (((atomic_t *)(ptr))->counter) \ + : "=&d" (old_val), "=&d" (new_val), "+Q" ((ptr)->counter)\ + : "d" (op_val) \ : "cc", "memory"); \ - new_val; \ + old_val; \ }) +#endif /* CONFIG_HAVE_MARCH_Z196_FEATURES */ + static inline int atomic_read(const atomic_t *v) { int c; @@ -53,32 +89,43 @@ static inline void atomic_set(atomic_t *v, int i) static inline int atomic_add_return(int i, atomic_t *v) { - return __CS_LOOP(v, i, "ar"); + return __ATOMIC_LOOP(v, i, __ATOMIC_ADD, __ATOMIC_BARRIER) + i; } -#define atomic_add(_i, _v) atomic_add_return(_i, _v) -#define atomic_add_negative(_i, _v) (atomic_add_return(_i, _v) < 0) -#define atomic_inc(_v) atomic_add_return(1, _v) -#define atomic_inc_return(_v) atomic_add_return(1, _v) -#define atomic_inc_and_test(_v) (atomic_add_return(1, _v) == 0) -static inline int atomic_sub_return(int i, atomic_t *v) +static inline void atomic_add(int i, atomic_t *v) { - return __CS_LOOP(v, i, "sr"); +#ifdef CONFIG_HAVE_MARCH_Z196_FEATURES + if (__builtin_constant_p(i) && (i > -129) && (i < 128)) { + asm volatile( + "asi %0,%1\n" + : "+Q" (v->counter) + : "i" (i) + : "cc", "memory"); + return; + } +#endif + __ATOMIC_LOOP(v, i, __ATOMIC_ADD, __ATOMIC_NO_BARRIER); } -#define atomic_sub(_i, _v) atomic_sub_return(_i, _v) + +#define atomic_add_negative(_i, _v) (atomic_add_return(_i, _v) < 0) +#define atomic_inc(_v) atomic_add(1, _v) +#define atomic_inc_return(_v) atomic_add_return(1, _v) +#define atomic_inc_and_test(_v) (atomic_add_return(1, _v) == 0) +#define atomic_sub(_i, _v) atomic_add(-(int)(_i), _v) +#define atomic_sub_return(_i, _v) atomic_add_return(-(int)(_i), _v) #define atomic_sub_and_test(_i, _v) (atomic_sub_return(_i, _v) == 0) -#define atomic_dec(_v) atomic_sub_return(1, _v) +#define atomic_dec(_v) atomic_sub(1, _v) #define atomic_dec_return(_v) atomic_sub_return(1, _v) #define atomic_dec_and_test(_v) (atomic_sub_return(1, _v) == 0) -static inline void atomic_clear_mask(unsigned long mask, atomic_t *v) +static inline void atomic_clear_mask(unsigned int mask, atomic_t *v) { - __CS_LOOP(v, ~mask, "nr"); + __ATOMIC_LOOP(v, ~mask, __ATOMIC_AND, __ATOMIC_NO_BARRIER); } -static inline void atomic_set_mask(unsigned long mask, atomic_t *v) +static inline void atomic_set_mask(unsigned int mask, atomic_t *v) { - __CS_LOOP(v, mask, "or"); + __ATOMIC_LOOP(v, mask, __ATOMIC_OR, __ATOMIC_NO_BARRIER); } #define atomic_xchg(v, new) (xchg(&((v)->counter), new)) @@ -87,8 +134,8 @@ static inline int atomic_cmpxchg(atomic_t *v, int old, int new) { asm volatile( " cs %0,%2,%1" - : "+d" (old), "=Q" (v->counter) - : "d" (new), "Q" (v->counter) + : "+d" (old), "+Q" (v->counter) + : "d" (new) : "cc", "memory"); return old; } @@ -109,27 +156,62 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u) } -#undef __CS_LOOP +#undef __ATOMIC_LOOP #define ATOMIC64_INIT(i) { (i) } #ifdef CONFIG_64BIT -#define __CSG_LOOP(ptr, op_val, op_string) ({ \ +#define __ATOMIC64_NO_BARRIER "\n" + +#ifdef CONFIG_HAVE_MARCH_Z196_FEATURES + +#define __ATOMIC64_OR "laog" +#define __ATOMIC64_AND "lang" +#define __ATOMIC64_ADD "laag" +#define __ATOMIC64_BARRIER "bcr 14,0\n" + +#define __ATOMIC64_LOOP(ptr, op_val, op_string, __barrier) \ +({ \ + long long old_val; \ + \ + typecheck(atomic64_t *, ptr); \ + asm volatile( \ + __barrier \ + op_string " %0,%2,%1\n" \ + __barrier \ + : "=d" (old_val), "+Q" ((ptr)->counter) \ + : "d" (op_val) \ + : "cc", "memory"); \ + old_val; \ +}) + +#else /* CONFIG_HAVE_MARCH_Z196_FEATURES */ + +#define __ATOMIC64_OR "ogr" +#define __ATOMIC64_AND "ngr" +#define __ATOMIC64_ADD "agr" +#define __ATOMIC64_BARRIER "\n" + +#define __ATOMIC64_LOOP(ptr, op_val, op_string, __barrier) \ +({ \ long long old_val, new_val; \ + \ + typecheck(atomic64_t *, ptr); \ asm volatile( \ " lg %0,%2\n" \ "0: lgr %1,%0\n" \ op_string " %1,%3\n" \ " csg %0,%1,%2\n" \ " jl 0b" \ - : "=&d" (old_val), "=&d" (new_val), \ - "=Q" (((atomic_t *)(ptr))->counter) \ - : "d" (op_val), "Q" (((atomic_t *)(ptr))->counter) \ + : "=&d" (old_val), "=&d" (new_val), "+Q" ((ptr)->counter)\ + : "d" (op_val) \ : "cc", "memory"); \ - new_val; \ + old_val; \ }) +#endif /* CONFIG_HAVE_MARCH_Z196_FEATURES */ + static inline long long atomic64_read(const atomic64_t *v) { long long c; @@ -149,22 +231,32 @@ static inline void atomic64_set(atomic64_t *v, long long i) static inline long long atomic64_add_return(long long i, atomic64_t *v) { - return __CSG_LOOP(v, i, "agr"); + return __ATOMIC64_LOOP(v, i, __ATOMIC64_ADD, __ATOMIC64_BARRIER) + i; } -static inline long long atomic64_sub_return(long long i, atomic64_t *v) +static inline void atomic64_add(long long i, atomic64_t *v) { - return __CSG_LOOP(v, i, "sgr"); +#ifdef CONFIG_HAVE_MARCH_Z196_FEATURES + if (__builtin_constant_p(i) && (i > -129) && (i < 128)) { + asm volatile( + "agsi %0,%1\n" + : "+Q" (v->counter) + : "i" (i) + : "cc", "memory"); + return; + } +#endif + __ATOMIC64_LOOP(v, i, __ATOMIC64_ADD, __ATOMIC64_NO_BARRIER); } static inline void atomic64_clear_mask(unsigned long mask, atomic64_t *v) { - __CSG_LOOP(v, ~mask, "ngr"); + __ATOMIC64_LOOP(v, ~mask, __ATOMIC64_AND, __ATOMIC64_NO_BARRIER); } static inline void atomic64_set_mask(unsigned long mask, atomic64_t *v) { - __CSG_LOOP(v, mask, "ogr"); + __ATOMIC64_LOOP(v, mask, __ATOMIC64_OR, __ATOMIC64_NO_BARRIER); } #define atomic64_xchg(v, new) (xchg(&((v)->counter), new)) @@ -174,13 +266,13 @@ static inline long long atomic64_cmpxchg(atomic64_t *v, { asm volatile( " csg %0,%2,%1" - : "+d" (old), "=Q" (v->counter) - : "d" (new), "Q" (v->counter) + : "+d" (old), "+Q" (v->counter) + : "d" (new) : "cc", "memory"); return old; } -#undef __CSG_LOOP +#undef __ATOMIC64_LOOP #else /* CONFIG_64BIT */ @@ -216,8 +308,8 @@ static inline long long atomic64_xchg(atomic64_t *v, long long new) " lm %0,%N0,%1\n" "0: cds %0,%2,%1\n" " jl 0b\n" - : "=&d" (rp_old), "=Q" (v->counter) - : "d" (rp_new), "Q" (v->counter) + : "=&d" (rp_old), "+Q" (v->counter) + : "d" (rp_new) : "cc"); return rp_old.pair; } @@ -230,8 +322,8 @@ static inline long long atomic64_cmpxchg(atomic64_t *v, asm volatile( " cds %0,%2,%1" - : "+&d" (rp_old), "=Q" (v->counter) - : "d" (rp_new), "Q" (v->counter) + : "+&d" (rp_old), "+Q" (v->counter) + : "d" (rp_new) : "cc"); return rp_old.pair; } @@ -248,17 +340,6 @@ static inline long long atomic64_add_return(long long i, atomic64_t *v) return new; } -static inline long long atomic64_sub_return(long long i, atomic64_t *v) -{ - long long old, new; - - do { - old = atomic64_read(v); - new = old - i; - } while (atomic64_cmpxchg(v, old, new) != old); - return new; -} - static inline void atomic64_set_mask(unsigned long long mask, atomic64_t *v) { long long old, new; @@ -279,9 +360,14 @@ static inline void atomic64_clear_mask(unsigned long long mask, atomic64_t *v) } while (atomic64_cmpxchg(v, old, new) != old); } +static inline void atomic64_add(long long i, atomic64_t *v) +{ + atomic64_add_return(i, v); +} + #endif /* CONFIG_64BIT */ -static inline int atomic64_add_unless(atomic64_t *v, long long a, long long u) +static inline int atomic64_add_unless(atomic64_t *v, long long i, long long u) { long long c, old; @@ -289,7 +375,7 @@ static inline int atomic64_add_unless(atomic64_t *v, long long a, long long u) for (;;) { if (unlikely(c == u)) break; - old = atomic64_cmpxchg(v, c, c + a); + old = atomic64_cmpxchg(v, c, c + i); if (likely(old == c)) break; c = old; @@ -314,21 +400,16 @@ static inline long long atomic64_dec_if_positive(atomic64_t *v) return dec; } -#define atomic64_add(_i, _v) atomic64_add_return(_i, _v) #define atomic64_add_negative(_i, _v) (atomic64_add_return(_i, _v) < 0) -#define atomic64_inc(_v) atomic64_add_return(1, _v) +#define atomic64_inc(_v) atomic64_add(1, _v) #define atomic64_inc_return(_v) atomic64_add_return(1, _v) #define atomic64_inc_and_test(_v) (atomic64_add_return(1, _v) == 0) -#define atomic64_sub(_i, _v) atomic64_sub_return(_i, _v) +#define atomic64_sub_return(_i, _v) atomic64_add_return(-(long long)(_i), _v) +#define atomic64_sub(_i, _v) atomic64_add(-(long long)(_i), _v) #define atomic64_sub_and_test(_i, _v) (atomic64_sub_return(_i, _v) == 0) -#define atomic64_dec(_v) atomic64_sub_return(1, _v) +#define atomic64_dec(_v) atomic64_sub(1, _v) #define atomic64_dec_return(_v) atomic64_sub_return(1, _v) #define atomic64_dec_and_test(_v) (atomic64_sub_return(1, _v) == 0) #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0) -#define smp_mb__before_atomic_dec() smp_mb() -#define smp_mb__after_atomic_dec() smp_mb() -#define smp_mb__before_atomic_inc() smp_mb() -#define smp_mb__after_atomic_inc() smp_mb() - #endif /* __ARCH_S390_ATOMIC__ */ diff --git a/arch/s390/include/asm/auxvec.h b/arch/s390/include/asm/auxvec.h deleted file mode 100644 index a1f153e8913..00000000000 --- a/arch/s390/include/asm/auxvec.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef __ASMS390_AUXVEC_H -#define __ASMS390_AUXVEC_H - -#define AT_SYSINFO_EHDR 33 - -#endif diff --git a/arch/s390/include/asm/barrier.h b/arch/s390/include/asm/barrier.h new file mode 100644 index 00000000000..19ff956b752 --- /dev/null +++ b/arch/s390/include/asm/barrier.h @@ -0,0 +1,51 @@ +/* + * Copyright IBM Corp. 1999, 2009 + * + * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com> + */ + +#ifndef __ASM_BARRIER_H +#define __ASM_BARRIER_H + +/* + * Force strict CPU ordering. + * And yes, this is required on UP too when we're talking + * to devices. + */ + +#ifdef CONFIG_HAVE_MARCH_Z196_FEATURES +/* Fast-BCR without checkpoint synchronization */ +#define mb() do { asm volatile("bcr 14,0" : : : "memory"); } while (0) +#else +#define mb() do { asm volatile("bcr 15,0" : : : "memory"); } while (0) +#endif + +#define rmb() mb() +#define wmb() mb() +#define read_barrier_depends() do { } while(0) +#define smp_mb() mb() +#define smp_rmb() rmb() +#define smp_wmb() wmb() +#define smp_read_barrier_depends() read_barrier_depends() + +#define smp_mb__before_atomic() smp_mb() +#define smp_mb__after_atomic() smp_mb() + +#define set_mb(var, value) do { var = value; mb(); } while (0) + +#define smp_store_release(p, v) \ +do { \ + compiletime_assert_atomic_type(*p); \ + barrier(); \ + ACCESS_ONCE(*p) = (v); \ +} while (0) + +#define smp_load_acquire(p) \ +({ \ + typeof(*p) ___p1 = ACCESS_ONCE(*p); \ + compiletime_assert_atomic_type(*p); \ + barrier(); \ + ___p1; \ +}) + +#endif /* __ASM_BARRIER_H */ diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h index e5beb490959..52054247767 100644 --- a/arch/s390/include/asm/bitops.h +++ b/arch/s390/include/asm/bitops.h @@ -1,579 +1,397 @@ -#ifndef _S390_BITOPS_H -#define _S390_BITOPS_H - /* - * include/asm-s390/bitops.h + * Copyright IBM Corp. 1999,2013 + * + * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>, + * + * The description below was taken in large parts from the powerpc + * bitops header file: + * Within a word, bits are numbered LSB first. Lot's of places make + * this assumption by directly testing bits with (val & (1<<nr)). + * This can cause confusion for large (> 1 word) bitmaps on a + * big-endian system because, unlike little endian, the number of each + * bit depends on the word size. + * + * The bitop functions are defined to work on unsigned longs, so for an + * s390x system the bits end up numbered: + * |63..............0|127............64|191...........128|255...........192| + * and on s390: + * |31.....0|63....32|95....64|127...96|159..128|191..160|223..192|255..224| * - * S390 version - * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation - * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com) + * There are a few little-endian macros used mostly for filesystem + * bitmaps, these work on similar bit arrays layouts, but + * byte-oriented: + * |7...0|15...8|23...16|31...24|39...32|47...40|55...48|63...56| * - * Derived from "include/asm-i386/bitops.h" - * Copyright (C) 1992, Linus Torvalds + * The main difference is that bit 3-5 (64b) or 3-4 (32b) in the bit + * number field needs to be reversed compared to the big-endian bit + * fields. This can be achieved by XOR with 0x38 (64b) or 0x18 (32b). + * + * We also have special functions which work with an MSB0 encoding: + * on an s390x system the bits are numbered: + * |0..............63|64............127|128...........191|192...........255| + * and on s390: + * |0.....31|32....63|64....95|96...127|128..159|160..191|192..223|224..255| + * + * The main difference is that bit 0-63 (64b) or 0-31 (32b) in the bit + * number field needs to be reversed compared to the LSB0 encoded bit + * fields. This can be achieved by XOR with 0x3f (64b) or 0x1f (32b). * */ -#ifdef __KERNEL__ +#ifndef _S390_BITOPS_H +#define _S390_BITOPS_H #ifndef _LINUX_BITOPS_H #error only <linux/bitops.h> can be included directly #endif +#include <linux/typecheck.h> #include <linux/compiler.h> +#include <asm/barrier.h> -/* - * 32 bit bitops format: - * bit 0 is the LSB of *addr; bit 31 is the MSB of *addr; - * bit 32 is the LSB of *(addr+4). That combined with the - * big endian byte order on S390 give the following bit - * order in memory: - * 1f 1e 1d 1c 1b 1a 19 18 17 16 15 14 13 12 11 10 \ - * 0f 0e 0d 0c 0b 0a 09 08 07 06 05 04 03 02 01 00 - * after that follows the next long with bit numbers - * 3f 3e 3d 3c 3b 3a 39 38 37 36 35 34 33 32 31 30 - * 2f 2e 2d 2c 2b 2a 29 28 27 26 25 24 23 22 21 20 - * The reason for this bit ordering is the fact that - * in the architecture independent code bits operations - * of the form "flags |= (1 << bitnr)" are used INTERMIXED - * with operation of the form "set_bit(bitnr, flags)". - * - * 64 bit bitops format: - * bit 0 is the LSB of *addr; bit 63 is the MSB of *addr; - * bit 64 is the LSB of *(addr+8). That combined with the - * big endian byte order on S390 give the following bit - * order in memory: - * 3f 3e 3d 3c 3b 3a 39 38 37 36 35 34 33 32 31 30 - * 2f 2e 2d 2c 2b 2a 29 28 27 26 25 24 23 22 21 20 - * 1f 1e 1d 1c 1b 1a 19 18 17 16 15 14 13 12 11 10 - * 0f 0e 0d 0c 0b 0a 09 08 07 06 05 04 03 02 01 00 - * after that follows the next long with bit numbers - * 7f 7e 7d 7c 7b 7a 79 78 77 76 75 74 73 72 71 70 - * 6f 6e 6d 6c 6b 6a 69 68 67 66 65 64 63 62 61 60 - * 5f 5e 5d 5c 5b 5a 59 58 57 56 55 54 53 52 51 50 - * 4f 4e 4d 4c 4b 4a 49 48 47 46 45 44 43 42 41 40 - * The reason for this bit ordering is the fact that - * in the architecture independent code bits operations - * of the form "flags |= (1 << bitnr)" are used INTERMIXED - * with operation of the form "set_bit(bitnr, flags)". - */ - -/* bitmap tables from arch/s390/kernel/bitmap.c */ -extern const char _oi_bitmap[]; -extern const char _ni_bitmap[]; -extern const char _zb_findmap[]; -extern const char _sb_findmap[]; +#define __BITOPS_NO_BARRIER "\n" -#ifndef __s390x__ +#ifndef CONFIG_64BIT -#define __BITOPS_ALIGN 3 -#define __BITOPS_WORDSIZE 32 #define __BITOPS_OR "or" #define __BITOPS_AND "nr" #define __BITOPS_XOR "xr" +#define __BITOPS_BARRIER "\n" -#define __BITOPS_LOOP(__old, __new, __addr, __val, __op_string) \ +#define __BITOPS_LOOP(__addr, __val, __op_string, __barrier) \ +({ \ + unsigned long __old, __new; \ + \ + typecheck(unsigned long *, (__addr)); \ asm volatile( \ " l %0,%2\n" \ "0: lr %1,%0\n" \ __op_string " %1,%3\n" \ " cs %0,%1,%2\n" \ " jl 0b" \ - : "=&d" (__old), "=&d" (__new), \ - "=Q" (*(unsigned long *) __addr) \ - : "d" (__val), "Q" (*(unsigned long *) __addr) \ - : "cc"); + : "=&d" (__old), "=&d" (__new), "+Q" (*(__addr))\ + : "d" (__val) \ + : "cc", "memory"); \ + __old; \ +}) + +#else /* CONFIG_64BIT */ + +#ifdef CONFIG_HAVE_MARCH_Z196_FEATURES + +#define __BITOPS_OR "laog" +#define __BITOPS_AND "lang" +#define __BITOPS_XOR "laxg" +#define __BITOPS_BARRIER "bcr 14,0\n" + +#define __BITOPS_LOOP(__addr, __val, __op_string, __barrier) \ +({ \ + unsigned long __old; \ + \ + typecheck(unsigned long *, (__addr)); \ + asm volatile( \ + __barrier \ + __op_string " %0,%2,%1\n" \ + __barrier \ + : "=d" (__old), "+Q" (*(__addr)) \ + : "d" (__val) \ + : "cc", "memory"); \ + __old; \ +}) -#else /* __s390x__ */ +#else /* CONFIG_HAVE_MARCH_Z196_FEATURES */ -#define __BITOPS_ALIGN 7 -#define __BITOPS_WORDSIZE 64 #define __BITOPS_OR "ogr" #define __BITOPS_AND "ngr" #define __BITOPS_XOR "xgr" +#define __BITOPS_BARRIER "\n" -#define __BITOPS_LOOP(__old, __new, __addr, __val, __op_string) \ +#define __BITOPS_LOOP(__addr, __val, __op_string, __barrier) \ +({ \ + unsigned long __old, __new; \ + \ + typecheck(unsigned long *, (__addr)); \ asm volatile( \ " lg %0,%2\n" \ "0: lgr %1,%0\n" \ __op_string " %1,%3\n" \ " csg %0,%1,%2\n" \ " jl 0b" \ - : "=&d" (__old), "=&d" (__new), \ - "=Q" (*(unsigned long *) __addr) \ - : "d" (__val), "Q" (*(unsigned long *) __addr) \ - : "cc"); + : "=&d" (__old), "=&d" (__new), "+Q" (*(__addr))\ + : "d" (__val) \ + : "cc", "memory"); \ + __old; \ +}) -#endif /* __s390x__ */ +#endif /* CONFIG_HAVE_MARCH_Z196_FEATURES */ -#define __BITOPS_WORDS(bits) (((bits)+__BITOPS_WORDSIZE-1)/__BITOPS_WORDSIZE) -#define __BITOPS_BARRIER() asm volatile("" : : : "memory") +#endif /* CONFIG_64BIT */ -#ifdef CONFIG_SMP -/* - * SMP safe set_bit routine based on compare and swap (CS) - */ -static inline void set_bit_cs(unsigned long nr, volatile unsigned long *ptr) +#define __BITOPS_WORDS(bits) (((bits) + BITS_PER_LONG - 1) / BITS_PER_LONG) + +static inline unsigned long * +__bitops_word(unsigned long nr, volatile unsigned long *ptr) { - unsigned long addr, old, new, mask; - - addr = (unsigned long) ptr; - /* calculate address for CS */ - addr += (nr ^ (nr & (__BITOPS_WORDSIZE - 1))) >> 3; - /* make OR mask */ - mask = 1UL << (nr & (__BITOPS_WORDSIZE - 1)); - /* Do the atomic update. */ - __BITOPS_LOOP(old, new, addr, mask, __BITOPS_OR); + unsigned long addr; + + addr = (unsigned long)ptr + ((nr ^ (nr & (BITS_PER_LONG - 1))) >> 3); + return (unsigned long *)addr; } -/* - * SMP safe clear_bit routine based on compare and swap (CS) - */ -static inline void clear_bit_cs(unsigned long nr, volatile unsigned long *ptr) +static inline unsigned char * +__bitops_byte(unsigned long nr, volatile unsigned long *ptr) { - unsigned long addr, old, new, mask; - - addr = (unsigned long) ptr; - /* calculate address for CS */ - addr += (nr ^ (nr & (__BITOPS_WORDSIZE - 1))) >> 3; - /* make AND mask */ - mask = ~(1UL << (nr & (__BITOPS_WORDSIZE - 1))); - /* Do the atomic update. */ - __BITOPS_LOOP(old, new, addr, mask, __BITOPS_AND); + return ((unsigned char *)ptr) + ((nr ^ (BITS_PER_LONG - 8)) >> 3); } -/* - * SMP safe change_bit routine based on compare and swap (CS) - */ -static inline void change_bit_cs(unsigned long nr, volatile unsigned long *ptr) +static inline void set_bit(unsigned long nr, volatile unsigned long *ptr) { - unsigned long addr, old, new, mask; - - addr = (unsigned long) ptr; - /* calculate address for CS */ - addr += (nr ^ (nr & (__BITOPS_WORDSIZE - 1))) >> 3; - /* make XOR mask */ - mask = 1UL << (nr & (__BITOPS_WORDSIZE - 1)); - /* Do the atomic update. */ - __BITOPS_LOOP(old, new, addr, mask, __BITOPS_XOR); + unsigned long *addr = __bitops_word(nr, ptr); + unsigned long mask; + +#ifdef CONFIG_HAVE_MARCH_ZEC12_FEATURES + if (__builtin_constant_p(nr)) { + unsigned char *caddr = __bitops_byte(nr, ptr); + + asm volatile( + "oi %0,%b1\n" + : "+Q" (*caddr) + : "i" (1 << (nr & 7)) + : "cc", "memory"); + return; + } +#endif + mask = 1UL << (nr & (BITS_PER_LONG - 1)); + __BITOPS_LOOP(addr, mask, __BITOPS_OR, __BITOPS_NO_BARRIER); } -/* - * SMP safe test_and_set_bit routine based on compare and swap (CS) - */ -static inline int -test_and_set_bit_cs(unsigned long nr, volatile unsigned long *ptr) +static inline void clear_bit(unsigned long nr, volatile unsigned long *ptr) { - unsigned long addr, old, new, mask; - - addr = (unsigned long) ptr; - /* calculate address for CS */ - addr += (nr ^ (nr & (__BITOPS_WORDSIZE - 1))) >> 3; - /* make OR/test mask */ - mask = 1UL << (nr & (__BITOPS_WORDSIZE - 1)); - /* Do the atomic update. */ - __BITOPS_LOOP(old, new, addr, mask, __BITOPS_OR); - __BITOPS_BARRIER(); - return (old & mask) != 0; + unsigned long *addr = __bitops_word(nr, ptr); + unsigned long mask; + +#ifdef CONFIG_HAVE_MARCH_ZEC12_FEATURES + if (__builtin_constant_p(nr)) { + unsigned char *caddr = __bitops_byte(nr, ptr); + + asm volatile( + "ni %0,%b1\n" + : "+Q" (*caddr) + : "i" (~(1 << (nr & 7))) + : "cc", "memory"); + return; + } +#endif + mask = ~(1UL << (nr & (BITS_PER_LONG - 1))); + __BITOPS_LOOP(addr, mask, __BITOPS_AND, __BITOPS_NO_BARRIER); } -/* - * SMP safe test_and_clear_bit routine based on compare and swap (CS) - */ -static inline int -test_and_clear_bit_cs(unsigned long nr, volatile unsigned long *ptr) +static inline void change_bit(unsigned long nr, volatile unsigned long *ptr) { - unsigned long addr, old, new, mask; - - addr = (unsigned long) ptr; - /* calculate address for CS */ - addr += (nr ^ (nr & (__BITOPS_WORDSIZE - 1))) >> 3; - /* make AND/test mask */ - mask = ~(1UL << (nr & (__BITOPS_WORDSIZE - 1))); - /* Do the atomic update. */ - __BITOPS_LOOP(old, new, addr, mask, __BITOPS_AND); - __BITOPS_BARRIER(); - return (old ^ new) != 0; + unsigned long *addr = __bitops_word(nr, ptr); + unsigned long mask; + +#ifdef CONFIG_HAVE_MARCH_ZEC12_FEATURES + if (__builtin_constant_p(nr)) { + unsigned char *caddr = __bitops_byte(nr, ptr); + + asm volatile( + "xi %0,%b1\n" + : "+Q" (*caddr) + : "i" (1 << (nr & 7)) + : "cc", "memory"); + return; + } +#endif + mask = 1UL << (nr & (BITS_PER_LONG - 1)); + __BITOPS_LOOP(addr, mask, __BITOPS_XOR, __BITOPS_NO_BARRIER); } -/* - * SMP safe test_and_change_bit routine based on compare and swap (CS) - */ static inline int -test_and_change_bit_cs(unsigned long nr, volatile unsigned long *ptr) +test_and_set_bit(unsigned long nr, volatile unsigned long *ptr) { - unsigned long addr, old, new, mask; - - addr = (unsigned long) ptr; - /* calculate address for CS */ - addr += (nr ^ (nr & (__BITOPS_WORDSIZE - 1))) >> 3; - /* make XOR/test mask */ - mask = 1UL << (nr & (__BITOPS_WORDSIZE - 1)); - /* Do the atomic update. */ - __BITOPS_LOOP(old, new, addr, mask, __BITOPS_XOR); - __BITOPS_BARRIER(); + unsigned long *addr = __bitops_word(nr, ptr); + unsigned long old, mask; + + mask = 1UL << (nr & (BITS_PER_LONG - 1)); + old = __BITOPS_LOOP(addr, mask, __BITOPS_OR, __BITOPS_BARRIER); return (old & mask) != 0; } -#endif /* CONFIG_SMP */ -/* - * fast, non-SMP set_bit routine - */ -static inline void __set_bit(unsigned long nr, volatile unsigned long *ptr) +static inline int +test_and_clear_bit(unsigned long nr, volatile unsigned long *ptr) { - unsigned long addr; + unsigned long *addr = __bitops_word(nr, ptr); + unsigned long old, mask; - addr = (unsigned long) ptr + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3); - asm volatile( - " oc %O0(1,%R0),%1" - : "=Q" (*(char *) addr) : "Q" (_oi_bitmap[nr & 7]) : "cc" ); + mask = ~(1UL << (nr & (BITS_PER_LONG - 1))); + old = __BITOPS_LOOP(addr, mask, __BITOPS_AND, __BITOPS_BARRIER); + return (old & ~mask) != 0; } -static inline void -__constant_set_bit(const unsigned long nr, volatile unsigned long *ptr) +static inline int +test_and_change_bit(unsigned long nr, volatile unsigned long *ptr) { - unsigned long addr; + unsigned long *addr = __bitops_word(nr, ptr); + unsigned long old, mask; - addr = ((unsigned long) ptr) + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3); - *(unsigned char *) addr |= 1 << (nr & 7); + mask = 1UL << (nr & (BITS_PER_LONG - 1)); + old = __BITOPS_LOOP(addr, mask, __BITOPS_XOR, __BITOPS_BARRIER); + return (old & mask) != 0; } -#define set_bit_simple(nr,addr) \ -(__builtin_constant_p((nr)) ? \ - __constant_set_bit((nr),(addr)) : \ - __set_bit((nr),(addr)) ) - -/* - * fast, non-SMP clear_bit routine - */ -static inline void -__clear_bit(unsigned long nr, volatile unsigned long *ptr) +static inline void __set_bit(unsigned long nr, volatile unsigned long *ptr) { - unsigned long addr; + unsigned char *addr = __bitops_byte(nr, ptr); - addr = (unsigned long) ptr + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3); - asm volatile( - " nc %O0(1,%R0),%1" - : "=Q" (*(char *) addr) : "Q" (_ni_bitmap[nr & 7]) : "cc" ); + *addr |= 1 << (nr & 7); } static inline void -__constant_clear_bit(const unsigned long nr, volatile unsigned long *ptr) +__clear_bit(unsigned long nr, volatile unsigned long *ptr) { - unsigned long addr; + unsigned char *addr = __bitops_byte(nr, ptr); - addr = ((unsigned long) ptr) + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3); - *(unsigned char *) addr &= ~(1 << (nr & 7)); + *addr &= ~(1 << (nr & 7)); } -#define clear_bit_simple(nr,addr) \ -(__builtin_constant_p((nr)) ? \ - __constant_clear_bit((nr),(addr)) : \ - __clear_bit((nr),(addr)) ) - -/* - * fast, non-SMP change_bit routine - */ static inline void __change_bit(unsigned long nr, volatile unsigned long *ptr) { - unsigned long addr; + unsigned char *addr = __bitops_byte(nr, ptr); - addr = (unsigned long) ptr + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3); - asm volatile( - " xc %O0(1,%R0),%1" - : "=Q" (*(char *) addr) : "Q" (_oi_bitmap[nr & 7]) : "cc" ); + *addr ^= 1 << (nr & 7); } -static inline void -__constant_change_bit(const unsigned long nr, volatile unsigned long *ptr) -{ - unsigned long addr; - - addr = ((unsigned long) ptr) + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3); - *(unsigned char *) addr ^= 1 << (nr & 7); -} - -#define change_bit_simple(nr,addr) \ -(__builtin_constant_p((nr)) ? \ - __constant_change_bit((nr),(addr)) : \ - __change_bit((nr),(addr)) ) - -/* - * fast, non-SMP test_and_set_bit routine - */ static inline int -test_and_set_bit_simple(unsigned long nr, volatile unsigned long *ptr) +__test_and_set_bit(unsigned long nr, volatile unsigned long *ptr) { - unsigned long addr; + unsigned char *addr = __bitops_byte(nr, ptr); unsigned char ch; - addr = (unsigned long) ptr + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3); - ch = *(unsigned char *) addr; - asm volatile( - " oc %O0(1,%R0),%1" - : "=Q" (*(char *) addr) : "Q" (_oi_bitmap[nr & 7]) - : "cc", "memory"); + ch = *addr; + *addr |= 1 << (nr & 7); return (ch >> (nr & 7)) & 1; } -#define __test_and_set_bit(X,Y) test_and_set_bit_simple(X,Y) -/* - * fast, non-SMP test_and_clear_bit routine - */ static inline int -test_and_clear_bit_simple(unsigned long nr, volatile unsigned long *ptr) +__test_and_clear_bit(unsigned long nr, volatile unsigned long *ptr) { - unsigned long addr; + unsigned char *addr = __bitops_byte(nr, ptr); unsigned char ch; - addr = (unsigned long) ptr + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3); - ch = *(unsigned char *) addr; - asm volatile( - " nc %O0(1,%R0),%1" - : "=Q" (*(char *) addr) : "Q" (_ni_bitmap[nr & 7]) - : "cc", "memory"); + ch = *addr; + *addr &= ~(1 << (nr & 7)); return (ch >> (nr & 7)) & 1; } -#define __test_and_clear_bit(X,Y) test_and_clear_bit_simple(X,Y) -/* - * fast, non-SMP test_and_change_bit routine - */ static inline int -test_and_change_bit_simple(unsigned long nr, volatile unsigned long *ptr) +__test_and_change_bit(unsigned long nr, volatile unsigned long *ptr) { - unsigned long addr; + unsigned char *addr = __bitops_byte(nr, ptr); unsigned char ch; - addr = (unsigned long) ptr + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3); - ch = *(unsigned char *) addr; - asm volatile( - " xc %O0(1,%R0),%1" - : "=Q" (*(char *) addr) : "Q" (_oi_bitmap[nr & 7]) - : "cc", "memory"); + ch = *addr; + *addr ^= 1 << (nr & 7); return (ch >> (nr & 7)) & 1; } -#define __test_and_change_bit(X,Y) test_and_change_bit_simple(X,Y) - -#ifdef CONFIG_SMP -#define set_bit set_bit_cs -#define clear_bit clear_bit_cs -#define change_bit change_bit_cs -#define test_and_set_bit test_and_set_bit_cs -#define test_and_clear_bit test_and_clear_bit_cs -#define test_and_change_bit test_and_change_bit_cs -#else -#define set_bit set_bit_simple -#define clear_bit clear_bit_simple -#define change_bit change_bit_simple -#define test_and_set_bit test_and_set_bit_simple -#define test_and_clear_bit test_and_clear_bit_simple -#define test_and_change_bit test_and_change_bit_simple -#endif - -/* - * This routine doesn't need to be atomic. - */ - -static inline int __test_bit(unsigned long nr, const volatile unsigned long *ptr) +static inline int test_bit(unsigned long nr, const volatile unsigned long *ptr) { - unsigned long addr; - unsigned char ch; + const volatile unsigned char *addr; - addr = (unsigned long) ptr + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3); - ch = *(volatile unsigned char *) addr; - return (ch >> (nr & 7)) & 1; + addr = ((const volatile unsigned char *)ptr); + addr += (nr ^ (BITS_PER_LONG - 8)) >> 3; + return (*addr >> (nr & 7)) & 1; } -static inline int -__constant_test_bit(unsigned long nr, const volatile unsigned long *addr) { - return (((volatile char *) addr) - [(nr^(__BITOPS_WORDSIZE-8))>>3] & (1<<(nr&7))) != 0; -} - -#define test_bit(nr,addr) \ -(__builtin_constant_p((nr)) ? \ - __constant_test_bit((nr),(addr)) : \ - __test_bit((nr),(addr)) ) - /* - * Optimized find bit helper functions. + * Functions which use MSB0 bit numbering. + * On an s390x system the bits are numbered: + * |0..............63|64............127|128...........191|192...........255| + * and on s390: + * |0.....31|32....63|64....95|96...127|128..159|160..191|192..223|224..255| */ +unsigned long find_first_bit_inv(const unsigned long *addr, unsigned long size); +unsigned long find_next_bit_inv(const unsigned long *addr, unsigned long size, + unsigned long offset); -/** - * __ffz_word_loop - find byte offset of first long != -1UL - * @addr: pointer to array of unsigned long - * @size: size of the array in bits - */ -static inline unsigned long __ffz_word_loop(const unsigned long *addr, - unsigned long size) +static inline void set_bit_inv(unsigned long nr, volatile unsigned long *ptr) { - typedef struct { long _[__BITOPS_WORDS(size)]; } addrtype; - unsigned long bytes = 0; - - asm volatile( -#ifndef __s390x__ - " ahi %1,-1\n" - " sra %1,5\n" - " jz 1f\n" - "0: c %2,0(%0,%3)\n" - " jne 1f\n" - " la %0,4(%0)\n" - " brct %1,0b\n" - "1:\n" -#else - " aghi %1,-1\n" - " srag %1,%1,6\n" - " jz 1f\n" - "0: cg %2,0(%0,%3)\n" - " jne 1f\n" - " la %0,8(%0)\n" - " brct %1,0b\n" - "1:\n" -#endif - : "+&a" (bytes), "+&d" (size) - : "d" (-1UL), "a" (addr), "m" (*(addrtype *) addr) - : "cc" ); - return bytes; -} - -/** - * __ffs_word_loop - find byte offset of first long != 0UL - * @addr: pointer to array of unsigned long - * @size: size of the array in bits - */ -static inline unsigned long __ffs_word_loop(const unsigned long *addr, - unsigned long size) -{ - typedef struct { long _[__BITOPS_WORDS(size)]; } addrtype; - unsigned long bytes = 0; - - asm volatile( -#ifndef __s390x__ - " ahi %1,-1\n" - " sra %1,5\n" - " jz 1f\n" - "0: c %2,0(%0,%3)\n" - " jne 1f\n" - " la %0,4(%0)\n" - " brct %1,0b\n" - "1:\n" -#else - " aghi %1,-1\n" - " srag %1,%1,6\n" - " jz 1f\n" - "0: cg %2,0(%0,%3)\n" - " jne 1f\n" - " la %0,8(%0)\n" - " brct %1,0b\n" - "1:\n" -#endif - : "+&a" (bytes), "+&a" (size) - : "d" (0UL), "a" (addr), "m" (*(addrtype *) addr) - : "cc" ); - return bytes; + return set_bit(nr ^ (BITS_PER_LONG - 1), ptr); } -/** - * __ffz_word - add number of the first unset bit - * @nr: base value the bit number is added to - * @word: the word that is searched for unset bits - */ -static inline unsigned long __ffz_word(unsigned long nr, unsigned long word) +static inline void clear_bit_inv(unsigned long nr, volatile unsigned long *ptr) { -#ifdef __s390x__ - if ((word & 0xffffffff) == 0xffffffff) { - word >>= 32; - nr += 32; - } -#endif - if ((word & 0xffff) == 0xffff) { - word >>= 16; - nr += 16; - } - if ((word & 0xff) == 0xff) { - word >>= 8; - nr += 8; - } - return nr + _zb_findmap[(unsigned char) word]; + return clear_bit(nr ^ (BITS_PER_LONG - 1), ptr); } -/** - * __ffs_word - add number of the first set bit - * @nr: base value the bit number is added to - * @word: the word that is searched for set bits - */ -static inline unsigned long __ffs_word(unsigned long nr, unsigned long word) +static inline void __set_bit_inv(unsigned long nr, volatile unsigned long *ptr) { -#ifdef __s390x__ - if ((word & 0xffffffff) == 0) { - word >>= 32; - nr += 32; - } -#endif - if ((word & 0xffff) == 0) { - word >>= 16; - nr += 16; - } - if ((word & 0xff) == 0) { - word >>= 8; - nr += 8; - } - return nr + _sb_findmap[(unsigned char) word]; + return __set_bit(nr ^ (BITS_PER_LONG - 1), ptr); } - -/** - * __load_ulong_be - load big endian unsigned long - * @p: pointer to array of unsigned long - * @offset: byte offset of source value in the array - */ -static inline unsigned long __load_ulong_be(const unsigned long *p, - unsigned long offset) +static inline void __clear_bit_inv(unsigned long nr, volatile unsigned long *ptr) { - p = (unsigned long *)((unsigned long) p + offset); - return *p; + return __clear_bit(nr ^ (BITS_PER_LONG - 1), ptr); } -/** - * __load_ulong_le - load little endian unsigned long - * @p: pointer to array of unsigned long - * @offset: byte offset of source value in the array - */ -static inline unsigned long __load_ulong_le(const unsigned long *p, - unsigned long offset) +static inline int test_bit_inv(unsigned long nr, + const volatile unsigned long *ptr) { - unsigned long word; - - p = (unsigned long *)((unsigned long) p + offset); -#ifndef __s390x__ - asm volatile( - " ic %0,%O1(%R1)\n" - " icm %0,2,%O1+1(%R1)\n" - " icm %0,4,%O1+2(%R1)\n" - " icm %0,8,%O1+3(%R1)" - : "=&d" (word) : "Q" (*p) : "cc"); -#else - asm volatile( - " lrvg %0,%1" - : "=d" (word) : "m" (*p) ); -#endif - return word; + return test_bit(nr ^ (BITS_PER_LONG - 1), ptr); } -/* - * The various find bit functions. - */ +#ifdef CONFIG_HAVE_MARCH_Z9_109_FEATURES -/* - * ffz - find first zero in word. - * @word: The word to search +/** + * __flogr - find leftmost one + * @word - The word to search * - * Undefined if no zero exists, so code should check against ~0UL first. - */ -static inline unsigned long ffz(unsigned long word) -{ - return __ffz_word(0, word); + * Returns the bit number of the most significant bit set, + * where the most significant bit has bit number 0. + * If no bit is set this function returns 64. + */ +static inline unsigned char __flogr(unsigned long word) +{ + if (__builtin_constant_p(word)) { + unsigned long bit = 0; + + if (!word) + return 64; + if (!(word & 0xffffffff00000000UL)) { + word <<= 32; + bit += 32; + } + if (!(word & 0xffff000000000000UL)) { + word <<= 16; + bit += 16; + } + if (!(word & 0xff00000000000000UL)) { + word <<= 8; + bit += 8; + } + if (!(word & 0xf000000000000000UL)) { + word <<= 4; + bit += 4; + } + if (!(word & 0xc000000000000000UL)) { + word <<= 2; + bit += 2; + } + if (!(word & 0x8000000000000000UL)) { + word <<= 1; + bit += 1; + } + return bit; + } else { + register unsigned long bit asm("4") = word; + register unsigned long out asm("5"); + + asm volatile( + " flogr %[bit],%[bit]\n" + : [bit] "+d" (bit), [out] "=d" (out) : : "cc"); + return bit; + } } /** @@ -582,259 +400,83 @@ static inline unsigned long ffz(unsigned long word) * * Undefined if no bit exists, so code should check against 0 first. */ -static inline unsigned long __ffs (unsigned long word) +static inline unsigned long __ffs(unsigned long word) { - return __ffs_word(0, word); + return __flogr(-word & word) ^ (BITS_PER_LONG - 1); } /** * ffs - find first bit set - * @x: the word to search + * @word: the word to search * - * This is defined the same way as - * the libc and compiler builtin ffs routines, therefore - * differs in spirit from the above ffz (man ffs). + * This is defined the same way as the libc and + * compiler builtin ffs routines (man ffs). */ -static inline int ffs(int x) +static inline int ffs(int word) { - if (!x) - return 0; - return __ffs_word(1, x); + unsigned long mask = 2 * BITS_PER_LONG - 1; + unsigned int val = (unsigned int)word; + + return (1 + (__flogr(-val & val) ^ (BITS_PER_LONG - 1))) & mask; } /** - * find_first_zero_bit - find the first zero bit in a memory region - * @addr: The address to start the search at - * @size: The maximum size to search + * __fls - find last (most-significant) set bit in a long word + * @word: the word to search * - * Returns the bit-number of the first zero bit, not the number of the byte - * containing a bit. + * Undefined if no set bit exists, so code should check against 0 first. */ -static inline unsigned long find_first_zero_bit(const unsigned long *addr, - unsigned long size) +static inline unsigned long __fls(unsigned long word) { - unsigned long bytes, bits; - - if (!size) - return 0; - bytes = __ffz_word_loop(addr, size); - bits = __ffz_word(bytes*8, __load_ulong_be(addr, bytes)); - return (bits < size) ? bits : size; + return __flogr(word) ^ (BITS_PER_LONG - 1); } -#define find_first_zero_bit find_first_zero_bit /** - * find_first_bit - find the first set bit in a memory region - * @addr: The address to start the search at - * @size: The maximum size to search + * fls64 - find last set bit in a 64-bit word + * @word: the word to search + * + * This is defined in a similar way as the libc and compiler builtin + * ffsll, but returns the position of the most significant set bit. * - * Returns the bit-number of the first set bit, not the number of the byte - * containing a bit. + * fls64(value) returns 0 if value is 0 or the position of the last + * set bit if value is nonzero. The last (most significant) bit is + * at position 64. */ -static inline unsigned long find_first_bit(const unsigned long * addr, - unsigned long size) +static inline int fls64(unsigned long word) { - unsigned long bytes, bits; + unsigned long mask = 2 * BITS_PER_LONG - 1; - if (!size) - return 0; - bytes = __ffs_word_loop(addr, size); - bits = __ffs_word(bytes*8, __load_ulong_be(addr, bytes)); - return (bits < size) ? bits : size; -} -#define find_first_bit find_first_bit - -/** - * find_next_zero_bit - find the first zero bit in a memory region - * @addr: The address to base the search on - * @offset: The bitnumber to start searching at - * @size: The maximum size to search - */ -static inline int find_next_zero_bit (const unsigned long * addr, - unsigned long size, - unsigned long offset) -{ - const unsigned long *p; - unsigned long bit, set; - - if (offset >= size) - return size; - bit = offset & (__BITOPS_WORDSIZE - 1); - offset -= bit; - size -= offset; - p = addr + offset / __BITOPS_WORDSIZE; - if (bit) { - /* - * __ffz_word returns __BITOPS_WORDSIZE - * if no zero bit is present in the word. - */ - set = __ffz_word(bit, *p >> bit); - if (set >= size) - return size + offset; - if (set < __BITOPS_WORDSIZE) - return set + offset; - offset += __BITOPS_WORDSIZE; - size -= __BITOPS_WORDSIZE; - p++; - } - return offset + find_first_zero_bit(p, size); + return (1 + (__flogr(word) ^ (BITS_PER_LONG - 1))) & mask; } -#define find_next_zero_bit find_next_zero_bit /** - * find_next_bit - find the first set bit in a memory region - * @addr: The address to base the search on - * @offset: The bitnumber to start searching at - * @size: The maximum size to search + * fls - find last (most-significant) bit set + * @word: the word to search + * + * This is defined the same way as ffs. + * Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32. */ -static inline int find_next_bit (const unsigned long * addr, - unsigned long size, - unsigned long offset) +static inline int fls(int word) { - const unsigned long *p; - unsigned long bit, set; - - if (offset >= size) - return size; - bit = offset & (__BITOPS_WORDSIZE - 1); - offset -= bit; - size -= offset; - p = addr + offset / __BITOPS_WORDSIZE; - if (bit) { - /* - * __ffs_word returns __BITOPS_WORDSIZE - * if no one bit is present in the word. - */ - set = __ffs_word(0, *p & (~0UL << bit)); - if (set >= size) - return size + offset; - if (set < __BITOPS_WORDSIZE) - return set + offset; - offset += __BITOPS_WORDSIZE; - size -= __BITOPS_WORDSIZE; - p++; - } - return offset + find_first_bit(p, size); + return fls64((unsigned int)word); } -#define find_next_bit find_next_bit -/* - * Every architecture must define this function. It's the fastest - * way of searching a 140-bit bitmap where the first 100 bits are - * unlikely to be set. It's guaranteed that at least one of the 140 - * bits is cleared. - */ -static inline int sched_find_first_bit(unsigned long *b) -{ - return find_first_bit(b, 140); -} +#else /* CONFIG_HAVE_MARCH_Z9_109_FEATURES */ -#include <asm-generic/bitops/fls.h> +#include <asm-generic/bitops/__ffs.h> +#include <asm-generic/bitops/ffs.h> #include <asm-generic/bitops/__fls.h> +#include <asm-generic/bitops/fls.h> #include <asm-generic/bitops/fls64.h> +#endif /* CONFIG_HAVE_MARCH_Z9_109_FEATURES */ + +#include <asm-generic/bitops/ffz.h> +#include <asm-generic/bitops/find.h> #include <asm-generic/bitops/hweight.h> #include <asm-generic/bitops/lock.h> - -/* - * ATTENTION: intel byte ordering convention for ext2 and minix !! - * bit 0 is the LSB of addr; bit 31 is the MSB of addr; - * bit 32 is the LSB of (addr+4). - * That combined with the little endian byte order of Intel gives the - * following bit order in memory: - * 07 06 05 04 03 02 01 00 15 14 13 12 11 10 09 08 \ - * 23 22 21 20 19 18 17 16 31 30 29 28 27 26 25 24 - */ - -static inline int find_first_zero_bit_le(void *vaddr, unsigned int size) -{ - unsigned long bytes, bits; - - if (!size) - return 0; - bytes = __ffz_word_loop(vaddr, size); - bits = __ffz_word(bytes*8, __load_ulong_le(vaddr, bytes)); - return (bits < size) ? bits : size; -} -#define find_first_zero_bit_le find_first_zero_bit_le - -static inline int find_next_zero_bit_le(void *vaddr, unsigned long size, - unsigned long offset) -{ - unsigned long *addr = vaddr, *p; - unsigned long bit, set; - - if (offset >= size) - return size; - bit = offset & (__BITOPS_WORDSIZE - 1); - offset -= bit; - size -= offset; - p = addr + offset / __BITOPS_WORDSIZE; - if (bit) { - /* - * s390 version of ffz returns __BITOPS_WORDSIZE - * if no zero bit is present in the word. - */ - set = __ffz_word(bit, __load_ulong_le(p, 0) >> bit); - if (set >= size) - return size + offset; - if (set < __BITOPS_WORDSIZE) - return set + offset; - offset += __BITOPS_WORDSIZE; - size -= __BITOPS_WORDSIZE; - p++; - } - return offset + find_first_zero_bit_le(p, size); -} -#define find_next_zero_bit_le find_next_zero_bit_le - -static inline unsigned long find_first_bit_le(void *vaddr, unsigned long size) -{ - unsigned long bytes, bits; - - if (!size) - return 0; - bytes = __ffs_word_loop(vaddr, size); - bits = __ffs_word(bytes*8, __load_ulong_le(vaddr, bytes)); - return (bits < size) ? bits : size; -} -#define find_first_bit_le find_first_bit_le - -static inline int find_next_bit_le(void *vaddr, unsigned long size, - unsigned long offset) -{ - unsigned long *addr = vaddr, *p; - unsigned long bit, set; - - if (offset >= size) - return size; - bit = offset & (__BITOPS_WORDSIZE - 1); - offset -= bit; - size -= offset; - p = addr + offset / __BITOPS_WORDSIZE; - if (bit) { - /* - * s390 version of ffz returns __BITOPS_WORDSIZE - * if no zero bit is present in the word. - */ - set = __ffs_word(0, __load_ulong_le(p, 0) & (~0UL << bit)); - if (set >= size) - return size + offset; - if (set < __BITOPS_WORDSIZE) - return set + offset; - offset += __BITOPS_WORDSIZE; - size -= __BITOPS_WORDSIZE; - p++; - } - return offset + find_first_bit_le(p, size); -} -#define find_next_bit_le find_next_bit_le - +#include <asm-generic/bitops/sched.h> #include <asm-generic/bitops/le.h> - #include <asm-generic/bitops/ext2-atomic-setbit.h> - -#endif /* __KERNEL__ */ - #endif /* _S390_BITOPS_H */ diff --git a/arch/s390/include/asm/bitsperlong.h b/arch/s390/include/asm/bitsperlong.h deleted file mode 100644 index 6b235aea9c6..00000000000 --- a/arch/s390/include/asm/bitsperlong.h +++ /dev/null @@ -1,13 +0,0 @@ -#ifndef __ASM_S390_BITSPERLONG_H -#define __ASM_S390_BITSPERLONG_H - -#ifndef __s390x__ -#define __BITS_PER_LONG 32 -#else -#define __BITS_PER_LONG 64 -#endif - -#include <asm-generic/bitsperlong.h> - -#endif /* __ASM_S390_BITSPERLONG_H */ - diff --git a/arch/s390/include/asm/bugs.h b/arch/s390/include/asm/bugs.h index 011f1e6a2a6..0f5bd894f4d 100644 --- a/arch/s390/include/asm/bugs.h +++ b/arch/s390/include/asm/bugs.h @@ -1,8 +1,6 @@ /* - * include/asm-s390/bugs.h - * * S390 version - * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation + * Copyright IBM Corp. 1999 * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com) * * Derived from "include/asm-i386/bugs.h" diff --git a/arch/s390/include/asm/byteorder.h b/arch/s390/include/asm/byteorder.h deleted file mode 100644 index a332e59e26f..00000000000 --- a/arch/s390/include/asm/byteorder.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef _S390_BYTEORDER_H -#define _S390_BYTEORDER_H - -#include <linux/byteorder/big_endian.h> - -#endif /* _S390_BYTEORDER_H */ diff --git a/arch/s390/include/asm/cache.h b/arch/s390/include/asm/cache.h index 2a30d5ac066..4d7ccac5fd1 100644 --- a/arch/s390/include/asm/cache.h +++ b/arch/s390/include/asm/cache.h @@ -1,8 +1,6 @@ /* - * include/asm-s390/cache.h - * * S390 version - * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation + * Copyright IBM Corp. 1999 * * Derived from "include/asm-i386/cache.h" * Copyright (C) 1992, Linus Torvalds diff --git a/arch/s390/include/asm/ccwdev.h b/arch/s390/include/asm/ccwdev.h index 9381c92cc77..b80e456d642 100644 --- a/arch/s390/include/asm/ccwdev.h +++ b/arch/s390/include/asm/ccwdev.h @@ -1,5 +1,5 @@ /* - * Copyright IBM Corp. 2002, 2009 + * Copyright IBM Corp. 2002, 2009 * * Author(s): Arnd Bergmann <arndb@de.ibm.com> * @@ -12,6 +12,7 @@ #include <linux/mod_devicetable.h> #include <asm/fcx.h> #include <asm/irq.h> +#include <asm/schid.h> /* structs from asm/cio.h */ struct irb; @@ -218,13 +219,15 @@ extern void ccw_device_get_id(struct ccw_device *, struct ccw_dev_id *); #define to_ccwdev(n) container_of(n, struct ccw_device, dev) #define to_ccwdrv(n) container_of(n, struct ccw_driver, driver) -extern struct ccw_device *ccw_device_probe_console(void); -extern int ccw_device_force_console(void); +extern struct ccw_device *ccw_device_create_console(struct ccw_driver *); +extern void ccw_device_destroy_console(struct ccw_device *); +extern int ccw_device_enable_console(struct ccw_device *); +extern void ccw_device_wait_idle(struct ccw_device *); +extern int ccw_device_force_console(struct ccw_device *); int ccw_device_siosl(struct ccw_device *); -// FIXME: these have to go -extern int _ccw_device_get_subchannel_number(struct ccw_device *); +extern void ccw_device_get_schid(struct ccw_device *, struct subchannel_id *); -extern void *ccw_device_get_chp_desc(struct ccw_device *, int); +struct channel_path_desc *ccw_device_get_chp_desc(struct ccw_device *, int); #endif /* _S390_CCWDEV_H_ */ diff --git a/arch/s390/include/asm/ccwgroup.h b/arch/s390/include/asm/ccwgroup.h index f2ea2c56a7e..057ce0ca637 100644 --- a/arch/s390/include/asm/ccwgroup.h +++ b/arch/s390/include/asm/ccwgroup.h @@ -6,14 +6,14 @@ struct ccw_driver; /** * struct ccwgroup_device - ccw group device - * @creator_id: unique number of the driver * @state: online/offline state * @count: number of attached slave devices * @dev: embedded device structure * @cdev: variable number of slave devices, allocated as needed + * @ungroup_work: work to be done when a ccwgroup notifier has action + * type %BUS_NOTIFY_UNBIND_DRIVER */ struct ccwgroup_device { - unsigned long creator_id; enum { CCWGROUP_OFFLINE, CCWGROUP_ONLINE, @@ -24,14 +24,13 @@ struct ccwgroup_device { /* public: */ unsigned int count; struct device dev; + struct work_struct ungroup_work; struct ccw_device *cdev[0]; }; /** * struct ccwgroup_driver - driver for ccw group devices - * @max_slaves: maximum number of slave devices - * @driver_id: unique id - * @probe: function called on probe + * @setup: function called during device creation to setup the device * @remove: function called on remove * @set_online: function called when device is set online * @set_offline: function called when device is set offline @@ -44,10 +43,7 @@ struct ccwgroup_device { * @driver: embedded driver structure */ struct ccwgroup_driver { - int max_slaves; - unsigned long driver_id; - - int (*probe) (struct ccwgroup_device *); + int (*setup) (struct ccwgroup_device *); void (*remove) (struct ccwgroup_device *); int (*set_online) (struct ccwgroup_device *); int (*set_offline) (struct ccwgroup_device *); @@ -63,9 +59,11 @@ struct ccwgroup_driver { extern int ccwgroup_driver_register (struct ccwgroup_driver *cdriver); extern void ccwgroup_driver_unregister (struct ccwgroup_driver *cdriver); -int ccwgroup_create_from_string(struct device *root, unsigned int creator_id, - struct ccw_driver *cdrv, int num_devices, - const char *buf); +int ccwgroup_create_dev(struct device *root, struct ccwgroup_driver *gdrv, + int num_devices, const char *buf); + +extern int ccwgroup_set_online(struct ccwgroup_device *gdev); +extern int ccwgroup_set_offline(struct ccwgroup_device *gdev); extern int ccwgroup_probe_ccwdev(struct ccw_device *cdev); extern void ccwgroup_remove_ccwdev(struct ccw_device *cdev); diff --git a/arch/s390/include/asm/checksum.h b/arch/s390/include/asm/checksum.h index 6c00f6800a3..74036485635 100644 --- a/arch/s390/include/asm/checksum.h +++ b/arch/s390/include/asm/checksum.h @@ -1,18 +1,16 @@ -#ifndef _S390_CHECKSUM_H -#define _S390_CHECKSUM_H - /* - * include/asm-s390/checksum.h * S390 fast network checksum routines - * see also arch/S390/lib/checksum.c * * S390 version - * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation + * Copyright IBM Corp. 1999 * Author(s): Ulrich Hild (first version) * Martin Schwidefsky (heavily optimized CKSM version) * D.J. Barrow (third attempt) */ +#ifndef _S390_CHECKSUM_H +#define _S390_CHECKSUM_H + #include <asm/uaccess.h> /* @@ -46,22 +44,15 @@ csum_partial(const void *buff, int len, __wsum sum) * here even more important to align src and dst on a 32-bit (or even * better 64-bit) boundary * - * Copy from userspace and compute checksum. If we catch an exception - * then zero the rest of the buffer. + * Copy from userspace and compute checksum. */ static inline __wsum csum_partial_copy_from_user(const void __user *src, void *dst, int len, __wsum sum, int *err_ptr) { - int missing; - - missing = copy_from_user(dst, src, len); - if (missing) { - memset(dst + len - missing, 0, missing); + if (unlikely(copy_from_user(dst, src, len))) *err_ptr = -EFAULT; - } - return csum_partial(dst, len, sum); } diff --git a/arch/s390/include/asm/chpid.h b/arch/s390/include/asm/chpid.h index 8e88e222177..7298eec9854 100644 --- a/arch/s390/include/asm/chpid.h +++ b/arch/s390/include/asm/chpid.h @@ -1,28 +1,24 @@ /* - * drivers/s390/cio/chpid.h - * - * Copyright IBM Corp. 2007 + * Copyright IBM Corp. 2007, 2012 * Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com> */ - #ifndef _ASM_S390_CHPID_H #define _ASM_S390_CHPID_H -#include <linux/string.h> -#include <linux/types.h> - -#define __MAX_CHPID 255 - -struct chp_id { - u8 reserved1; - u8 cssid; - u8 reserved2; - u8 id; -} __attribute__((packed)); - -#ifdef __KERNEL__ +#include <uapi/asm/chpid.h> #include <asm/cio.h> +struct channel_path_desc { + u8 flags; + u8 lsn; + u8 desc; + u8 chpid; + u8 swla; + u8 zeroes; + u8 chla; + u8 chpp; +} __packed; + static inline void chp_id_init(struct chp_id *chpid) { memset(chpid, 0, sizeof(struct chp_id)); @@ -51,6 +47,4 @@ static inline int chp_id_is_valid(struct chp_id *chpid) #define chp_id_for_each(c) \ for (chp_id_init(c); chp_id_is_valid(c); chp_id_next(c)) -#endif /* __KERNEL */ - #endif /* _ASM_S390_CHPID_H */ diff --git a/arch/s390/include/asm/chsc.h b/arch/s390/include/asm/chsc.h deleted file mode 100644 index 4943654ed7f..00000000000 --- a/arch/s390/include/asm/chsc.h +++ /dev/null @@ -1,156 +0,0 @@ -/* - * ioctl interface for /dev/chsc - * - * Copyright 2008 IBM Corp. - * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com> - */ - -#ifndef _ASM_CHSC_H -#define _ASM_CHSC_H - -#include <linux/types.h> -#include <asm/chpid.h> -#include <asm/schid.h> - -struct chsc_async_header { - __u16 length; - __u16 code; - __u32 cmd_dependend; - __u32 key : 4; - __u32 : 28; - struct subchannel_id sid; -} __attribute__ ((packed)); - -struct chsc_async_area { - struct chsc_async_header header; - __u8 data[PAGE_SIZE - 16 /* size of chsc_async_header */]; -} __attribute__ ((packed)); - - -struct chsc_response_struct { - __u16 length; - __u16 code; - __u32 parms; - __u8 data[PAGE_SIZE - 8]; -} __attribute__ ((packed)); - -struct chsc_chp_cd { - struct chp_id chpid; - int m; - int fmt; - struct chsc_response_struct cpcb; -}; - -struct chsc_cu_cd { - __u16 cun; - __u8 cssid; - int m; - int fmt; - struct chsc_response_struct cucb; -}; - -struct chsc_sch_cud { - struct subchannel_id schid; - int fmt; - struct chsc_response_struct scub; -}; - -struct conf_id { - int m; - __u8 cssid; - __u8 ssid; -}; - -struct chsc_conf_info { - struct conf_id id; - int fmt; - struct chsc_response_struct scid; -}; - -struct ccl_parm_chpid { - int m; - struct chp_id chp; -}; - -struct ccl_parm_cssids { - __u8 f_cssid; - __u8 l_cssid; -}; - -struct chsc_comp_list { - struct { - enum { - CCL_CU_ON_CHP = 1, - CCL_CHP_TYPE_CAP = 2, - CCL_CSS_IMG = 4, - CCL_CSS_IMG_CONF_CHAR = 5, - CCL_IOP_CHP = 6, - } ctype; - int fmt; - struct ccl_parm_chpid chpid; - struct ccl_parm_cssids cssids; - } req; - struct chsc_response_struct sccl; -}; - -struct chsc_dcal { - struct { - enum { - DCAL_CSS_IID_PN = 4, - } atype; - __u32 list_parm[2]; - int fmt; - } req; - struct chsc_response_struct sdcal; -}; - -struct chsc_cpd_info { - struct chp_id chpid; - int m; - int fmt; - int rfmt; - int c; - struct chsc_response_struct chpdb; -}; - -#define CHSC_IOCTL_MAGIC 'c' - -#define CHSC_START _IOWR(CHSC_IOCTL_MAGIC, 0x81, struct chsc_async_area) -#define CHSC_INFO_CHANNEL_PATH _IOWR(CHSC_IOCTL_MAGIC, 0x82, \ - struct chsc_chp_cd) -#define CHSC_INFO_CU _IOWR(CHSC_IOCTL_MAGIC, 0x83, struct chsc_cu_cd) -#define CHSC_INFO_SCH_CU _IOWR(CHSC_IOCTL_MAGIC, 0x84, struct chsc_sch_cud) -#define CHSC_INFO_CI _IOWR(CHSC_IOCTL_MAGIC, 0x85, struct chsc_conf_info) -#define CHSC_INFO_CCL _IOWR(CHSC_IOCTL_MAGIC, 0x86, struct chsc_comp_list) -#define CHSC_INFO_CPD _IOWR(CHSC_IOCTL_MAGIC, 0x87, struct chsc_cpd_info) -#define CHSC_INFO_DCAL _IOWR(CHSC_IOCTL_MAGIC, 0x88, struct chsc_dcal) - -#ifdef __KERNEL__ - -struct css_general_char { - u64 : 12; - u32 dynio : 1; /* bit 12 */ - u32 : 28; - u32 aif : 1; /* bit 41 */ - u32 : 3; - u32 mcss : 1; /* bit 45 */ - u32 fcs : 1; /* bit 46 */ - u32 : 1; - u32 ext_mb : 1; /* bit 48 */ - u32 : 7; - u32 aif_tdd : 1; /* bit 56 */ - u32 : 1; - u32 qebsm : 1; /* bit 58 */ - u32 : 8; - u32 aif_osa : 1; /* bit 67 */ - u32 : 14; - u32 cib : 1; /* bit 82 */ - u32 : 5; - u32 fcx : 1; /* bit 88 */ - u32 : 7; -}__attribute__((packed)); - -extern struct css_general_char css_general_characteristics; - -#endif /* __KERNEL__ */ -#endif diff --git a/arch/s390/include/asm/cio.h b/arch/s390/include/asm/cio.h index fc50a3342da..09633920776 100644 --- a/arch/s390/include/asm/cio.h +++ b/arch/s390/include/asm/cio.h @@ -1,7 +1,4 @@ /* - * include/asm-s390/cio.h - * include/asm-s390x/cio.h - * * Common interface for I/O on S/390 */ #ifndef _ASM_S390_CIO_H_ @@ -10,10 +7,10 @@ #include <linux/spinlock.h> #include <asm/types.h> -#ifdef __KERNEL__ - #define LPM_ANYPATH 0xff #define __MAX_CSSID 0 +#define __MAX_SUBCHANNEL 65535 +#define __MAX_SSID 3 #include <asm/scsw.h> @@ -85,6 +82,18 @@ struct erw { } __attribute__ ((packed)); /** + * struct erw_eadm - EADM Subchannel extended report word + * @b: aob error + * @r: arsb error + */ +struct erw_eadm { + __u32 : 16; + __u32 b : 1; + __u32 r : 1; + __u32 : 14; +} __packed; + +/** * struct sublog - subchannel logout area * @res0: reserved * @esf: extended status flags @@ -175,9 +184,22 @@ struct esw3 { } __attribute__ ((packed)); /** + * struct esw_eadm - EADM Subchannel Extended Status Word (ESW) + * @sublog: subchannel logout + * @erw: extended report word + */ +struct esw_eadm { + __u32 sublog; + struct erw_eadm erw; + __u32 : 32; + __u32 : 32; + __u32 : 32; +} __packed; + +/** * struct irb - interruption response block * @scsw: subchannel status word - * @esw: extened status word, 4 formats + * @esw: extended status word * @ecw: extended control word * * The irb that is handed to the device driver when an interrupt occurs. For @@ -196,6 +218,7 @@ struct irb { struct esw1 esw1; struct esw2 esw2; struct esw3 esw3; + struct esw_eadm eadm; } esw; __u8 ecw[32]; } __attribute__ ((packed,aligned(4))); @@ -273,8 +296,7 @@ static inline int ccw_dev_id_is_equal(struct ccw_dev_id *dev_id1, return 0; } -extern void wait_cons_dev(void); - +void channel_subsystem_reinit(void); extern void css_schedule_reprobe(void); extern void reipl_ccw_dev(struct ccw_dev_id *id); @@ -291,5 +313,3 @@ int chsc_sstpc(void *page, unsigned int op, u16 ctrl); int chsc_sstpi(void *page, void *result, size_t size); #endif - -#endif diff --git a/arch/s390/include/asm/clp.h b/arch/s390/include/asm/clp.h new file mode 100644 index 00000000000..a0e71a501f7 --- /dev/null +++ b/arch/s390/include/asm/clp.h @@ -0,0 +1,28 @@ +#ifndef _ASM_S390_CLP_H +#define _ASM_S390_CLP_H + +/* CLP common request & response block size */ +#define CLP_BLK_SIZE PAGE_SIZE + +struct clp_req_hdr { + u16 len; + u16 cmd; +} __packed; + +struct clp_rsp_hdr { + u16 len; + u16 rsp; +} __packed; + +/* CLP Response Codes */ +#define CLP_RC_OK 0x0010 /* Command request successfully */ +#define CLP_RC_CMD 0x0020 /* Command code not recognized */ +#define CLP_RC_PERM 0x0030 /* Command not authorized */ +#define CLP_RC_FMT 0x0040 /* Invalid command request format */ +#define CLP_RC_LEN 0x0050 /* Invalid command request length */ +#define CLP_RC_8K 0x0060 /* Command requires 8K LPCB */ +#define CLP_RC_RESNOT0 0x0070 /* Reserved field not zero */ +#define CLP_RC_NODATA 0x0080 /* No data available */ +#define CLP_RC_FC_UNKNOWN 0x0100 /* Function code not recognized */ + +#endif diff --git a/arch/s390/include/asm/cmb.h b/arch/s390/include/asm/cmb.h index 39ae0329479..806eac12e3b 100644 --- a/arch/s390/include/asm/cmb.h +++ b/arch/s390/include/asm/cmb.h @@ -1,61 +1,12 @@ #ifndef S390_CMB_H #define S390_CMB_H -#include <linux/types.h> +#include <uapi/asm/cmb.h> -/** - * struct cmbdata - channel measurement block data for user space - * @size: size of the stored data - * @elapsed_time: time since last sampling - * @ssch_rsch_count: number of ssch and rsch - * @sample_count: number of samples - * @device_connect_time: time of device connect - * @function_pending_time: time of function pending - * @device_disconnect_time: time of device disconnect - * @control_unit_queuing_time: time of control unit queuing - * @device_active_only_time: time of device active only - * @device_busy_time: time of device busy (ext. format) - * @initial_command_response_time: initial command response time (ext. format) - * - * All values are stored as 64 bit for simplicity, especially - * in 32 bit emulation mode. All time values are normalized to - * nanoseconds. - * Currently, two formats are known, which differ by the size of - * this structure, i.e. the last two members are only set when - * the extended channel measurement facility (first shipped in - * z990 machines) is activated. - * Potentially, more fields could be added, which would result in a - * new ioctl number. - */ -struct cmbdata { - __u64 size; - __u64 elapsed_time; - /* basic and exended format: */ - __u64 ssch_rsch_count; - __u64 sample_count; - __u64 device_connect_time; - __u64 function_pending_time; - __u64 device_disconnect_time; - __u64 control_unit_queuing_time; - __u64 device_active_only_time; - /* extended format only: */ - __u64 device_busy_time; - __u64 initial_command_response_time; -}; - -/* enable channel measurement */ -#define BIODASDCMFENABLE _IO(DASD_IOCTL_LETTER, 32) -/* enable channel measurement */ -#define BIODASDCMFDISABLE _IO(DASD_IOCTL_LETTER, 33) -/* read channel measurement data */ -#define BIODASDREADALLCMB _IOWR(DASD_IOCTL_LETTER, 33, struct cmbdata) - -#ifdef __KERNEL__ struct ccw_device; extern int enable_cmf(struct ccw_device *cdev); extern int disable_cmf(struct ccw_device *cdev); extern u64 cmf_read(struct ccw_device *cdev, int index); extern int cmf_readall(struct ccw_device *cdev, struct cmbdata *data); -#endif /* __KERNEL__ */ #endif /* S390_CMB_H */ diff --git a/arch/s390/include/asm/cmpxchg.h b/arch/s390/include/asm/cmpxchg.h index 81d7908416c..4236408070e 100644 --- a/arch/s390/include/asm/cmpxchg.h +++ b/arch/s390/include/asm/cmpxchg.h @@ -7,7 +7,9 @@ #ifndef __ASM_CMPXCHG_H #define __ASM_CMPXCHG_H +#include <linux/mmdebug.h> #include <linux/types.h> +#include <linux/bug.h> extern void __xchg_called_with_bad_pointer(void); @@ -29,7 +31,7 @@ static inline unsigned long __xchg(unsigned long x, void *ptr, int size) " cs %0,0,%4\n" " jl 0b\n" : "=&d" (old), "=Q" (*(int *) addr) - : "d" (x << shift), "d" (~(255 << shift)), + : "d" ((x & 0xff) << shift), "d" (~(0xff << shift)), "Q" (*(int *) addr) : "memory", "cc", "0"); return old >> shift; case 2: @@ -44,7 +46,7 @@ static inline unsigned long __xchg(unsigned long x, void *ptr, int size) " cs %0,0,%4\n" " jl 0b\n" : "=&d" (old), "=Q" (*(int *) addr) - : "d" (x << shift), "d" (~(65535 << shift)), + : "d" ((x & 0xffff) << shift), "d" (~(0xffff << shift)), "Q" (*(int *) addr) : "memory", "cc", "0"); return old >> shift; case 4: @@ -113,9 +115,10 @@ static inline unsigned long __cmpxchg(void *ptr, unsigned long old, " nr %1,%5\n" " jnz 0b\n" "1:" - : "=&d" (prev), "=&d" (tmp), "=Q" (*(int *) ptr) - : "d" (old << shift), "d" (new << shift), - "d" (~(255 << shift)), "Q" (*(int *) ptr) + : "=&d" (prev), "=&d" (tmp), "+Q" (*(int *) addr) + : "d" ((old & 0xff) << shift), + "d" ((new & 0xff) << shift), + "d" (~(0xff << shift)) : "memory", "cc"); return prev >> shift; case 2: @@ -134,9 +137,10 @@ static inline unsigned long __cmpxchg(void *ptr, unsigned long old, " nr %1,%5\n" " jnz 0b\n" "1:" - : "=&d" (prev), "=&d" (tmp), "=Q" (*(int *) ptr) - : "d" (old << shift), "d" (new << shift), - "d" (~(65535 << shift)), "Q" (*(int *) ptr) + : "=&d" (prev), "=&d" (tmp), "+Q" (*(int *) addr) + : "d" ((old & 0xffff) << shift), + "d" ((new & 0xffff) << shift), + "d" (~(0xffff << shift)) : "memory", "cc"); return prev >> shift; case 4: @@ -160,9 +164,14 @@ static inline unsigned long __cmpxchg(void *ptr, unsigned long old, return old; } -#define cmpxchg(ptr, o, n) \ - ((__typeof__(*(ptr)))__cmpxchg((ptr), (unsigned long)(o), \ - (unsigned long)(n), sizeof(*(ptr)))) +#define cmpxchg(ptr, o, n) \ +({ \ + __typeof__(*(ptr)) __ret; \ + __ret = (__typeof__(*(ptr))) \ + __cmpxchg((ptr), (unsigned long)(o), (unsigned long)(n), \ + sizeof(*(ptr))); \ + __ret; \ +}) #ifdef CONFIG_64BIT #define cmpxchg64(ptr, o, n) \ @@ -176,20 +185,86 @@ static inline unsigned long long __cmpxchg64(void *ptr, { register_pair rp_old = {.pair = old}; register_pair rp_new = {.pair = new}; + unsigned long long *ullptr = ptr; asm volatile( " cds %0,%2,%1" - : "+&d" (rp_old), "=Q" (ptr) - : "d" (rp_new), "Q" (ptr) - : "cc"); + : "+d" (rp_old), "+Q" (*ullptr) + : "d" (rp_new) + : "memory", "cc"); return rp_old.pair; } -#define cmpxchg64(ptr, o, n) \ - ((__typeof__(*(ptr)))__cmpxchg64((ptr), \ - (unsigned long long)(o), \ - (unsigned long long)(n))) + +#define cmpxchg64(ptr, o, n) \ +({ \ + __typeof__(*(ptr)) __ret; \ + __ret = (__typeof__(*(ptr))) \ + __cmpxchg64((ptr), \ + (unsigned long long)(o), \ + (unsigned long long)(n)); \ + __ret; \ +}) #endif /* CONFIG_64BIT */ +#define __cmpxchg_double_op(p1, p2, o1, o2, n1, n2, insn) \ +({ \ + register __typeof__(*(p1)) __old1 asm("2") = (o1); \ + register __typeof__(*(p2)) __old2 asm("3") = (o2); \ + register __typeof__(*(p1)) __new1 asm("4") = (n1); \ + register __typeof__(*(p2)) __new2 asm("5") = (n2); \ + int cc; \ + asm volatile( \ + insn " %[old],%[new],%[ptr]\n" \ + " ipm %[cc]\n" \ + " srl %[cc],28" \ + : [cc] "=d" (cc), [old] "+d" (__old1), "+d" (__old2) \ + : [new] "d" (__new1), "d" (__new2), \ + [ptr] "Q" (*(p1)), "Q" (*(p2)) \ + : "memory", "cc"); \ + !cc; \ +}) + +#define __cmpxchg_double_4(p1, p2, o1, o2, n1, n2) \ + __cmpxchg_double_op(p1, p2, o1, o2, n1, n2, "cds") + +#define __cmpxchg_double_8(p1, p2, o1, o2, n1, n2) \ + __cmpxchg_double_op(p1, p2, o1, o2, n1, n2, "cdsg") + +extern void __cmpxchg_double_called_with_bad_pointer(void); + +#define __cmpxchg_double(p1, p2, o1, o2, n1, n2) \ +({ \ + int __ret; \ + switch (sizeof(*(p1))) { \ + case 4: \ + __ret = __cmpxchg_double_4(p1, p2, o1, o2, n1, n2); \ + break; \ + case 8: \ + __ret = __cmpxchg_double_8(p1, p2, o1, o2, n1, n2); \ + break; \ + default: \ + __cmpxchg_double_called_with_bad_pointer(); \ + } \ + __ret; \ +}) + +#define cmpxchg_double(p1, p2, o1, o2, n1, n2) \ +({ \ + __typeof__(p1) __p1 = (p1); \ + __typeof__(p2) __p2 = (p2); \ + int __ret; \ + BUILD_BUG_ON(sizeof(*(p1)) != sizeof(long)); \ + BUILD_BUG_ON(sizeof(*(p2)) != sizeof(long)); \ + VM_BUG_ON((unsigned long)((__p1) + 1) != (unsigned long)(__p2));\ + if (sizeof(long) == 4) \ + __ret = __cmpxchg_double_4(__p1, __p2, o1, o2, n1, n2); \ + else \ + __ret = __cmpxchg_double_8(__p1, __p2, o1, o2, n1, n2); \ + __ret; \ +}) + +#define system_has_cmpxchg_double() 1 + #include <asm-generic/cmpxchg-local.h> static inline unsigned long __cmpxchg_local(void *ptr, @@ -216,8 +291,13 @@ static inline unsigned long __cmpxchg_local(void *ptr, * them available. */ #define cmpxchg_local(ptr, o, n) \ - ((__typeof__(*(ptr)))__cmpxchg_local((ptr), (unsigned long)(o), \ - (unsigned long)(n), sizeof(*(ptr)))) +({ \ + __typeof__(*(ptr)) __ret; \ + __ret = (__typeof__(*(ptr))) \ + __cmpxchg_local((ptr), (unsigned long)(o), \ + (unsigned long)(n), sizeof(*(ptr))); \ + __ret; \ +}) #define cmpxchg64_local(ptr, o, n) cmpxchg64((ptr), (o), (n)) diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h index 2e49748b27d..d350ed9d0fb 100644 --- a/arch/s390/include/asm/compat.h +++ b/arch/s390/include/asm/compat.h @@ -7,6 +7,13 @@ #include <linux/sched.h> #include <linux/thread_info.h> +#define __TYPE_IS_PTR(t) (!__builtin_types_compatible_p(typeof(0?(t)0:0ULL), u64)) + +#define __SC_DELOUSE(t,v) ({ \ + BUILD_BUG_ON(sizeof(t) > 4 && !__TYPE_IS_PTR(t)); \ + (t)(__TYPE_IS_PTR(t) ? ((v) & 0x7fffffff) : (v)); \ +}) + #define PSW32_MASK_PER 0x40000000UL #define PSW32_MASK_DAT 0x04000000UL #define PSW32_MASK_IO 0x02000000UL @@ -19,8 +26,9 @@ #define PSW32_MASK_ASC 0x0000C000UL #define PSW32_MASK_CC 0x00003000UL #define PSW32_MASK_PM 0x00000f00UL +#define PSW32_MASK_RI 0x00000080UL -#define PSW32_MASK_USER 0x00003F00UL +#define PSW32_MASK_USER 0x0000FF00UL #define PSW32_ADDR_AMODE 0x80000000UL #define PSW32_ADDR_INSN 0x7FFFFFFFUL @@ -32,7 +40,10 @@ #define PSW32_ASC_SECONDARY 0x00008000UL #define PSW32_ASC_HOME 0x0000C000UL -extern u32 psw32_user_bits; +#define PSW32_USER_BITS (PSW32_MASK_DAT | PSW32_MASK_IO | PSW32_MASK_EXT | \ + PSW32_DEFAULT_KEY | PSW32_MASK_BASE | \ + PSW32_MASK_MCHECK | PSW32_MASK_PSTATE | \ + PSW32_ASC_PRIMARY) #define COMPAT_USER_HZ 100 #define COMPAT_UTS_MACHINE "s390\0\0\0\0" @@ -65,6 +76,23 @@ typedef s64 compat_s64; typedef u32 compat_uint_t; typedef u32 compat_ulong_t; typedef u64 compat_u64; +typedef u32 compat_uptr_t; + +typedef struct { + u32 mask; + u32 addr; +} __aligned(8) psw_compat_t; + +typedef struct { + psw_compat_t psw; + u32 gprs[NUM_GPRS]; + u32 acrs[NUM_ACRS]; + u32 orig_gpr2; +} s390_compat_regs; + +typedef struct { + u32 gprs_high[NUM_GPRS]; +} s390_compat_regs_high; struct compat_timespec { compat_time_t tv_sec; @@ -120,18 +148,33 @@ struct compat_flock64 { }; struct compat_statfs { - s32 f_type; - s32 f_bsize; - s32 f_blocks; - s32 f_bfree; - s32 f_bavail; - s32 f_files; - s32 f_ffree; + u32 f_type; + u32 f_bsize; + u32 f_blocks; + u32 f_bfree; + u32 f_bavail; + u32 f_files; + u32 f_ffree; compat_fsid_t f_fsid; - s32 f_namelen; - s32 f_frsize; - s32 f_flags; - s32 f_spare[5]; + u32 f_namelen; + u32 f_frsize; + u32 f_flags; + u32 f_spare[4]; +}; + +struct compat_statfs64 { + u32 f_type; + u32 f_bsize; + u64 f_blocks; + u64 f_bfree; + u64 f_bavail; + u64 f_files; + u64 f_ffree; + compat_fsid_t f_fsid; + u32 f_namelen; + u32 f_frsize; + u32 f_flags; + u32 f_spare[4]; }; #define COMPAT_RLIM_OLD_INFINITY 0x7fffffff @@ -144,6 +187,79 @@ typedef u32 compat_old_sigset_t; /* at least 32 bits */ typedef u32 compat_sigset_word; +typedef union compat_sigval { + compat_int_t sival_int; + compat_uptr_t sival_ptr; +} compat_sigval_t; + +typedef struct compat_siginfo { + int si_signo; + int si_errno; + int si_code; + + union { + int _pad[128/sizeof(int) - 3]; + + /* kill() */ + struct { + pid_t _pid; /* sender's pid */ + uid_t _uid; /* sender's uid */ + } _kill; + + /* POSIX.1b timers */ + struct { + compat_timer_t _tid; /* timer id */ + int _overrun; /* overrun count */ + compat_sigval_t _sigval; /* same as below */ + int _sys_private; /* not to be passed to user */ + } _timer; + + /* POSIX.1b signals */ + struct { + pid_t _pid; /* sender's pid */ + uid_t _uid; /* sender's uid */ + compat_sigval_t _sigval; + } _rt; + + /* SIGCHLD */ + struct { + pid_t _pid; /* which child */ + uid_t _uid; /* sender's uid */ + int _status;/* exit code */ + compat_clock_t _utime; + compat_clock_t _stime; + } _sigchld; + + /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */ + struct { + __u32 _addr; /* faulting insn/memory ref. - pointer */ + } _sigfault; + + /* SIGPOLL */ + struct { + int _band; /* POLL_IN, POLL_OUT, POLL_MSG */ + int _fd; + } _sigpoll; + } _sifields; +} compat_siginfo_t; + +/* + * How these fields are to be accessed. + */ +#define si_pid _sifields._kill._pid +#define si_uid _sifields._kill._uid +#define si_status _sifields._sigchld._status +#define si_utime _sifields._sigchld._utime +#define si_stime _sifields._sigchld._stime +#define si_value _sifields._rt._sigval +#define si_int _sifields._rt._sigval.sival_int +#define si_ptr _sifields._rt._sigval.sival_ptr +#define si_addr _sifields._sigfault._addr +#define si_band _sifields._sigpoll._band +#define si_fd _sifields._sigpoll._fd +#define si_tid _sifields._timer._tid +#define si_overrun _sifields._timer._overrun + #define COMPAT_OFF_T_MAX 0x7fffffff #define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL @@ -153,7 +269,6 @@ typedef u32 compat_sigset_word; * as pointers because the syscall entry code will have * appropriately converted them already. */ -typedef u32 compat_uptr_t; static inline void __user *compat_ptr(compat_uptr_t uptr) { @@ -172,15 +287,6 @@ static inline int is_compat_task(void) return is_32bit_task(); } -#else - -static inline int is_compat_task(void) -{ - return 0; -} - -#endif - static inline void __user *arch_compat_alloc_user_space(long len) { unsigned long stack; @@ -191,6 +297,8 @@ static inline void __user *arch_compat_alloc_user_space(long len) return (void __user *) (stack - len); } +#endif + struct compat_ipc64_perm { compat_key_t key; __compat_uid32_t uid; diff --git a/arch/s390/include/asm/cpcmd.h b/arch/s390/include/asm/cpcmd.h index 48a9eab1642..3dfadb5d648 100644 --- a/arch/s390/include/asm/cpcmd.h +++ b/arch/s390/include/asm/cpcmd.h @@ -1,8 +1,6 @@ /* - * arch/s390/kernel/cpcmd.h - * * S390 version - * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation + * Copyright IBM Corp. 1999 * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com), * Christian Borntraeger (cborntra@de.ibm.com), */ diff --git a/arch/s390/include/asm/cpu.h b/arch/s390/include/asm/cpu.h index e0b69540216..f5a8e2fcde0 100644 --- a/arch/s390/include/asm/cpu.h +++ b/arch/s390/include/asm/cpu.h @@ -1,5 +1,5 @@ /* - * Copyright IBM Corp. 2000,2009 + * Copyright IBM Corp. 2000, 2009 * Author(s): Hartmut Penner <hp@de.ibm.com>, * Martin Schwidefsky <schwidefsky@de.ibm.com>, * Christian Ehrhardt <ehrhardt@de.ibm.com>, diff --git a/arch/s390/include/asm/cpu_mf.h b/arch/s390/include/asm/cpu_mf.h new file mode 100644 index 00000000000..cb700d54bd8 --- /dev/null +++ b/arch/s390/include/asm/cpu_mf.h @@ -0,0 +1,283 @@ +/* + * CPU-measurement facilities + * + * Copyright IBM Corp. 2012 + * Author(s): Hendrik Brueckner <brueckner@linux.vnet.ibm.com> + * Jan Glauber <jang@linux.vnet.ibm.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License (version 2 only) + * as published by the Free Software Foundation. + */ +#ifndef _ASM_S390_CPU_MF_H +#define _ASM_S390_CPU_MF_H + +#include <linux/errno.h> +#include <asm/facility.h> + +#define CPU_MF_INT_SF_IAE (1 << 31) /* invalid entry address */ +#define CPU_MF_INT_SF_ISE (1 << 30) /* incorrect SDBT entry */ +#define CPU_MF_INT_SF_PRA (1 << 29) /* program request alert */ +#define CPU_MF_INT_SF_SACA (1 << 23) /* sampler auth. change alert */ +#define CPU_MF_INT_SF_LSDA (1 << 22) /* loss of sample data alert */ +#define CPU_MF_INT_CF_CACA (1 << 7) /* counter auth. change alert */ +#define CPU_MF_INT_CF_LCDA (1 << 6) /* loss of counter data alert */ +#define CPU_MF_INT_RI_HALTED (1 << 5) /* run-time instr. halted */ +#define CPU_MF_INT_RI_BUF_FULL (1 << 4) /* run-time instr. program + buffer full */ + +#define CPU_MF_INT_CF_MASK (CPU_MF_INT_CF_CACA|CPU_MF_INT_CF_LCDA) +#define CPU_MF_INT_SF_MASK (CPU_MF_INT_SF_IAE|CPU_MF_INT_SF_ISE| \ + CPU_MF_INT_SF_PRA|CPU_MF_INT_SF_SACA| \ + CPU_MF_INT_SF_LSDA) +#define CPU_MF_INT_RI_MASK (CPU_MF_INT_RI_HALTED|CPU_MF_INT_RI_BUF_FULL) + +/* CPU measurement facility support */ +static inline int cpum_cf_avail(void) +{ + return MACHINE_HAS_LPP && test_facility(67); +} + +static inline int cpum_sf_avail(void) +{ + return MACHINE_HAS_LPP && test_facility(68); +} + + +struct cpumf_ctr_info { + u16 cfvn; + u16 auth_ctl; + u16 enable_ctl; + u16 act_ctl; + u16 max_cpu; + u16 csvn; + u16 max_cg; + u16 reserved1; + u32 reserved2[12]; +} __packed; + +/* QUERY SAMPLING INFORMATION block */ +struct hws_qsi_info_block { /* Bit(s) */ + unsigned int b0_13:14; /* 0-13: zeros */ + unsigned int as:1; /* 14: basic-sampling authorization */ + unsigned int ad:1; /* 15: diag-sampling authorization */ + unsigned int b16_21:6; /* 16-21: zeros */ + unsigned int es:1; /* 22: basic-sampling enable control */ + unsigned int ed:1; /* 23: diag-sampling enable control */ + unsigned int b24_29:6; /* 24-29: zeros */ + unsigned int cs:1; /* 30: basic-sampling activation control */ + unsigned int cd:1; /* 31: diag-sampling activation control */ + unsigned int bsdes:16; /* 4-5: size of basic sampling entry */ + unsigned int dsdes:16; /* 6-7: size of diagnostic sampling entry */ + unsigned long min_sampl_rate; /* 8-15: minimum sampling interval */ + unsigned long max_sampl_rate; /* 16-23: maximum sampling interval*/ + unsigned long tear; /* 24-31: TEAR contents */ + unsigned long dear; /* 32-39: DEAR contents */ + unsigned int rsvrd0; /* 40-43: reserved */ + unsigned int cpu_speed; /* 44-47: CPU speed */ + unsigned long long rsvrd1; /* 48-55: reserved */ + unsigned long long rsvrd2; /* 56-63: reserved */ +} __packed; + +/* SET SAMPLING CONTROLS request block */ +struct hws_lsctl_request_block { + unsigned int s:1; /* 0: maximum buffer indicator */ + unsigned int h:1; /* 1: part. level reserved for VM use*/ + unsigned long long b2_53:52;/* 2-53: zeros */ + unsigned int es:1; /* 54: basic-sampling enable control */ + unsigned int ed:1; /* 55: diag-sampling enable control */ + unsigned int b56_61:6; /* 56-61: - zeros */ + unsigned int cs:1; /* 62: basic-sampling activation control */ + unsigned int cd:1; /* 63: diag-sampling activation control */ + unsigned long interval; /* 8-15: sampling interval */ + unsigned long tear; /* 16-23: TEAR contents */ + unsigned long dear; /* 24-31: DEAR contents */ + /* 32-63: */ + unsigned long rsvrd1; /* reserved */ + unsigned long rsvrd2; /* reserved */ + unsigned long rsvrd3; /* reserved */ + unsigned long rsvrd4; /* reserved */ +} __packed; + +struct hws_basic_entry { + unsigned int def:16; /* 0-15 Data Entry Format */ + unsigned int R:4; /* 16-19 reserved */ + unsigned int U:4; /* 20-23 Number of unique instruct. */ + unsigned int z:2; /* zeros */ + unsigned int T:1; /* 26 PSW DAT mode */ + unsigned int W:1; /* 27 PSW wait state */ + unsigned int P:1; /* 28 PSW Problem state */ + unsigned int AS:2; /* 29-30 PSW address-space control */ + unsigned int I:1; /* 31 entry valid or invalid */ + unsigned int:16; + unsigned int prim_asn:16; /* primary ASN */ + unsigned long long ia; /* Instruction Address */ + unsigned long long gpp; /* Guest Program Parameter */ + unsigned long long hpp; /* Host Program Parameter */ +} __packed; + +struct hws_diag_entry { + unsigned int def:16; /* 0-15 Data Entry Format */ + unsigned int R:14; /* 16-19 and 20-30 reserved */ + unsigned int I:1; /* 31 entry valid or invalid */ + u8 data[]; /* Machine-dependent sample data */ +} __packed; + +struct hws_combined_entry { + struct hws_basic_entry basic; /* Basic-sampling data entry */ + struct hws_diag_entry diag; /* Diagnostic-sampling data entry */ +} __packed; + +struct hws_trailer_entry { + union { + struct { + unsigned int f:1; /* 0 - Block Full Indicator */ + unsigned int a:1; /* 1 - Alert request control */ + unsigned int t:1; /* 2 - Timestamp format */ + unsigned long long:61; /* 3 - 63: Reserved */ + }; + unsigned long long flags; /* 0 - 63: All indicators */ + }; + unsigned long long overflow; /* 64 - sample Overflow count */ + unsigned char timestamp[16]; /* 16 - 31 timestamp */ + unsigned long long reserved1; /* 32 -Reserved */ + unsigned long long reserved2; /* */ + unsigned long long progusage1; /* 48 - reserved for programming use */ + unsigned long long progusage2; /* */ +} __packed; + +/* Query counter information */ +static inline int qctri(struct cpumf_ctr_info *info) +{ + int rc = -EINVAL; + + asm volatile ( + "0: .insn s,0xb28e0000,%1\n" + "1: lhi %0,0\n" + "2:\n" + EX_TABLE(1b, 2b) + : "+d" (rc), "=Q" (*info)); + return rc; +} + +/* Load CPU-counter-set controls */ +static inline int lcctl(u64 ctl) +{ + int cc; + + asm volatile ( + " .insn s,0xb2840000,%1\n" + " ipm %0\n" + " srl %0,28\n" + : "=d" (cc) : "m" (ctl) : "cc"); + return cc; +} + +/* Extract CPU counter */ +static inline int ecctr(u64 ctr, u64 *val) +{ + register u64 content asm("4") = 0; + int cc; + + asm volatile ( + " .insn rre,0xb2e40000,%0,%2\n" + " ipm %1\n" + " srl %1,28\n" + : "=d" (content), "=d" (cc) : "d" (ctr) : "cc"); + if (!cc) + *val = content; + return cc; +} + +/* Query sampling information */ +static inline int qsi(struct hws_qsi_info_block *info) +{ + int cc; + cc = 1; + + asm volatile( + "0: .insn s,0xb2860000,0(%1)\n" + "1: lhi %0,0\n" + "2:\n" + EX_TABLE(0b, 2b) EX_TABLE(1b, 2b) + : "=d" (cc), "+a" (info) + : "m" (*info) + : "cc", "memory"); + + return cc ? -EINVAL : 0; +} + +/* Load sampling controls */ +static inline int lsctl(struct hws_lsctl_request_block *req) +{ + int cc; + + cc = 1; + asm volatile( + "0: .insn s,0xb2870000,0(%1)\n" + "1: ipm %0\n" + " srl %0,28\n" + "2:\n" + EX_TABLE(0b, 2b) EX_TABLE(1b, 2b) + : "+d" (cc), "+a" (req) + : "m" (*req) + : "cc", "memory"); + + return cc ? -EINVAL : 0; +} + +/* Sampling control helper functions */ + +#include <linux/time.h> + +static inline unsigned long freq_to_sample_rate(struct hws_qsi_info_block *qsi, + unsigned long freq) +{ + return (USEC_PER_SEC / freq) * qsi->cpu_speed; +} + +static inline unsigned long sample_rate_to_freq(struct hws_qsi_info_block *qsi, + unsigned long rate) +{ + return USEC_PER_SEC * qsi->cpu_speed / rate; +} + +#define SDB_TE_ALERT_REQ_MASK 0x4000000000000000UL +#define SDB_TE_BUFFER_FULL_MASK 0x8000000000000000UL + +/* Return TOD timestamp contained in an trailer entry */ +static inline unsigned long long trailer_timestamp(struct hws_trailer_entry *te) +{ + /* TOD in STCKE format */ + if (te->t) + return *((unsigned long long *) &te->timestamp[1]); + + /* TOD in STCK format */ + return *((unsigned long long *) &te->timestamp[0]); +} + +/* Return pointer to trailer entry of an sample data block */ +static inline unsigned long *trailer_entry_ptr(unsigned long v) +{ + void *ret; + + ret = (void *) v; + ret += PAGE_SIZE; + ret -= sizeof(struct hws_trailer_entry); + + return (unsigned long *) ret; +} + +/* Return if the entry in the sample data block table (sdbt) + * is a link to the next sdbt */ +static inline int is_link_entry(unsigned long *s) +{ + return *s & 0x1ul ? 1 : 0; +} + +/* Return pointer to the linked sdbt */ +static inline unsigned long *get_next_sdbt(unsigned long *s) +{ + return (unsigned long *) (*s & ~0x1ul); +} +#endif /* _ASM_S390_CPU_MF_H */ diff --git a/arch/s390/include/asm/cputime.h b/arch/s390/include/asm/cputime.h index c23c3900c30..f65bd363451 100644 --- a/arch/s390/include/asm/cputime.h +++ b/arch/s390/include/asm/cputime.h @@ -1,7 +1,5 @@ /* - * include/asm-s390/cputime.h - * - * (C) Copyright IBM Corp. 2004 + * Copyright IBM Corp. 2004 * * Author: Martin Schwidefsky <schwidefsky@de.ibm.com> */ @@ -14,6 +12,7 @@ #include <linux/spinlock.h> #include <asm/div64.h> + /* We want to use full resolution of the CPU timer: 2**-12 micro-seconds. */ typedef unsigned long long __nocast cputime_t; @@ -21,15 +20,15 @@ typedef unsigned long long __nocast cputime64_t; static inline unsigned long __div(unsigned long long n, unsigned long base) { -#ifndef __s390x__ +#ifndef CONFIG_64BIT register_pair rp; rp.pair = n >> 1; asm ("dr %0,%1" : "+d" (rp) : "d" (base >> 1)); return rp.subreg.odd; -#else /* __s390x__ */ +#else /* CONFIG_64BIT */ return n / base; -#endif /* __s390x__ */ +#endif /* CONFIG_64BIT */ } #define cputime_one_jiffy jiffies_to_cputime(1) @@ -100,7 +99,7 @@ static inline void cputime_to_timespec(const cputime_t cputime, struct timespec *value) { unsigned long long __cputime = (__force unsigned long long) cputime; -#ifndef __s390x__ +#ifndef CONFIG_64BIT register_pair rp; rp.pair = __cputime >> 1; @@ -128,7 +127,7 @@ static inline void cputime_to_timeval(const cputime_t cputime, struct timeval *value) { unsigned long long __cputime = (__force unsigned long long) cputime; -#ifndef __s390x__ +#ifndef CONFIG_64BIT register_pair rp; rp.pair = __cputime >> 1; @@ -167,27 +166,22 @@ static inline clock_t cputime64_to_clock_t(cputime64_t cputime) } struct s390_idle_data { + int nohz_delay; unsigned int sequence; unsigned long long idle_count; - unsigned long long idle_enter; unsigned long long idle_time; - int nohz_delay; + unsigned long long clock_idle_enter; + unsigned long long clock_idle_exit; + unsigned long long timer_idle_enter; + unsigned long long timer_idle_exit; }; DECLARE_PER_CPU(struct s390_idle_data, s390_idle); -void vtime_start_cpu(__u64 int_clock, __u64 enter_timer); cputime64_t s390_get_idle_time(int cpu); #define arch_idle_time(cpu) s390_get_idle_time(cpu) -static inline void s390_idle_check(struct pt_regs *regs, __u64 int_clock, - __u64 enter_timer) -{ - if (regs->psw.mask & PSW_MASK_WAIT) - vtime_start_cpu(int_clock, enter_timer); -} - static inline int s390_nohz_delay(int cpu) { return __get_cpu_var(s390_idle).nohz_delay != 0; diff --git a/arch/s390/include/asm/crw.h b/arch/s390/include/asm/crw.h index 749a97e61be..7c31d3e25cd 100644 --- a/arch/s390/include/asm/crw.h +++ b/arch/s390/include/asm/crw.h @@ -1,6 +1,6 @@ /* * Data definitions for channel report processing - * Copyright IBM Corp. 2000,2009 + * Copyright IBM Corp. 2000, 2009 * Author(s): Ingo Adlung <adlung@de.ibm.com>, * Martin Schwidefsky <schwidefsky@de.ibm.com>, * Cornelia Huck <cornelia.huck@de.ibm.com>, diff --git a/arch/s390/include/asm/css_chars.h b/arch/s390/include/asm/css_chars.h new file mode 100644 index 00000000000..09d1dd46bd5 --- /dev/null +++ b/arch/s390/include/asm/css_chars.h @@ -0,0 +1,38 @@ +#ifndef _ASM_CSS_CHARS_H +#define _ASM_CSS_CHARS_H + +#include <linux/types.h> + +struct css_general_char { + u64 : 12; + u32 dynio : 1; /* bit 12 */ + u32 : 4; + u32 eadm : 1; /* bit 17 */ + u32 : 23; + u32 aif : 1; /* bit 41 */ + u32 : 3; + u32 mcss : 1; /* bit 45 */ + u32 fcs : 1; /* bit 46 */ + u32 : 1; + u32 ext_mb : 1; /* bit 48 */ + u32 : 7; + u32 aif_tdd : 1; /* bit 56 */ + u32 : 1; + u32 qebsm : 1; /* bit 58 */ + u32 : 8; + u32 aif_osa : 1; /* bit 67 */ + u32 : 12; + u32 eadm_rf : 1; /* bit 80 */ + u32 : 1; + u32 cib : 1; /* bit 82 */ + u32 : 5; + u32 fcx : 1; /* bit 88 */ + u32 : 19; + u32 alt_ssi : 1; /* bit 108 */ + u32:1; + u32 narf:1; /* bit 110 */ +} __packed; + +extern struct css_general_char css_general_characteristics; + +#endif diff --git a/arch/s390/include/asm/ctl_reg.h b/arch/s390/include/asm/ctl_reg.h new file mode 100644 index 00000000000..31ab9f346d7 --- /dev/null +++ b/arch/s390/include/asm/ctl_reg.h @@ -0,0 +1,82 @@ +/* + * Copyright IBM Corp. 1999, 2009 + * + * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com> + */ + +#ifndef __ASM_CTL_REG_H +#define __ASM_CTL_REG_H + +#include <linux/bug.h> + +#ifdef CONFIG_64BIT +# define __CTL_LOAD "lctlg" +# define __CTL_STORE "stctg" +#else +# define __CTL_LOAD "lctl" +# define __CTL_STORE "stctl" +#endif + +#define __ctl_load(array, low, high) { \ + typedef struct { char _[sizeof(array)]; } addrtype; \ + \ + BUILD_BUG_ON(sizeof(addrtype) != (high - low + 1) * sizeof(long));\ + asm volatile( \ + __CTL_LOAD " %1,%2,%0\n" \ + : : "Q" (*(addrtype *)(&array)), "i" (low), "i" (high));\ +} + +#define __ctl_store(array, low, high) { \ + typedef struct { char _[sizeof(array)]; } addrtype; \ + \ + BUILD_BUG_ON(sizeof(addrtype) != (high - low + 1) * sizeof(long));\ + asm volatile( \ + __CTL_STORE " %1,%2,%0\n" \ + : "=Q" (*(addrtype *)(&array)) \ + : "i" (low), "i" (high)); \ +} + +static inline void __ctl_set_bit(unsigned int cr, unsigned int bit) +{ + unsigned long reg; + + __ctl_store(reg, cr, cr); + reg |= 1UL << bit; + __ctl_load(reg, cr, cr); +} + +static inline void __ctl_clear_bit(unsigned int cr, unsigned int bit) +{ + unsigned long reg; + + __ctl_store(reg, cr, cr); + reg &= ~(1UL << bit); + __ctl_load(reg, cr, cr); +} + +void smp_ctl_set_bit(int cr, int bit); +void smp_ctl_clear_bit(int cr, int bit); + +union ctlreg0 { + unsigned long val; + struct { +#ifdef CONFIG_64BIT + unsigned long : 32; +#endif + unsigned long : 3; + unsigned long lap : 1; /* Low-address-protection control */ + unsigned long : 4; + unsigned long edat : 1; /* Enhanced-DAT-enablement control */ + unsigned long : 23; + }; +}; + +#ifdef CONFIG_SMP +# define ctl_set_bit(cr, bit) smp_ctl_set_bit(cr, bit) +# define ctl_clear_bit(cr, bit) smp_ctl_clear_bit(cr, bit) +#else +# define ctl_set_bit(cr, bit) __ctl_set_bit(cr, bit) +# define ctl_clear_bit(cr, bit) __ctl_clear_bit(cr, bit) +#endif + +#endif /* __ASM_CTL_REG_H */ diff --git a/arch/s390/include/asm/current.h b/arch/s390/include/asm/current.h index 83cf36cde2d..b80941f30df 100644 --- a/arch/s390/include/asm/current.h +++ b/arch/s390/include/asm/current.h @@ -1,8 +1,6 @@ /* - * include/asm-s390/current.h - * * S390 version - * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation + * Copyright IBM Corp. 1999 * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com) * * Derived from "include/asm-i386/current.h" @@ -11,13 +9,10 @@ #ifndef _S390_CURRENT_H #define _S390_CURRENT_H -#ifdef __KERNEL__ #include <asm/lowcore.h> struct task_struct; #define current ((struct task_struct *const)S390_lowcore.current_task) -#endif - #endif /* !(_S390_CURRENT_H) */ diff --git a/arch/s390/include/asm/dasd.h b/arch/s390/include/asm/dasd.h deleted file mode 100644 index 0be28efe5b6..00000000000 --- a/arch/s390/include/asm/dasd.h +++ /dev/null @@ -1,292 +0,0 @@ -/* - * File...........: linux/drivers/s390/block/dasd.c - * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com> - * Bugreports.to..: <Linux390@de.ibm.com> - * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999,2000 - * EMC Symmetrix ioctl Copyright EMC Corporation, 2008 - * Author.........: Nigel Hislop <hislop_nigel@emc.com> - * - * This file is the interface of the DASD device driver, which is exported to user space - * any future changes wrt the API will result in a change of the APIVERSION reported - * to userspace by the DASDAPIVER-ioctl - * - */ - -#ifndef DASD_H -#define DASD_H -#include <linux/types.h> -#include <linux/ioctl.h> - -#define DASD_IOCTL_LETTER 'D' - -#define DASD_API_VERSION 6 - -/* - * struct dasd_information2_t - * represents any data about the device, which is visible to userspace. - * including foramt and featueres. - */ -typedef struct dasd_information2_t { - unsigned int devno; /* S/390 devno */ - unsigned int real_devno; /* for aliases */ - unsigned int schid; /* S/390 subchannel identifier */ - unsigned int cu_type : 16; /* from SenseID */ - unsigned int cu_model : 8; /* from SenseID */ - unsigned int dev_type : 16; /* from SenseID */ - unsigned int dev_model : 8; /* from SenseID */ - unsigned int open_count; - unsigned int req_queue_len; - unsigned int chanq_len; /* length of chanq */ - char type[4]; /* from discipline.name, 'none' for unknown */ - unsigned int status; /* current device level */ - unsigned int label_block; /* where to find the VOLSER */ - unsigned int FBA_layout; /* fixed block size (like AIXVOL) */ - unsigned int characteristics_size; - unsigned int confdata_size; - char characteristics[64]; /* from read_device_characteristics */ - char configuration_data[256]; /* from read_configuration_data */ - unsigned int format; /* format info like formatted/cdl/ldl/... */ - unsigned int features; /* dasd features like 'ro',... */ - unsigned int reserved0; /* reserved for further use ,... */ - unsigned int reserved1; /* reserved for further use ,... */ - unsigned int reserved2; /* reserved for further use ,... */ - unsigned int reserved3; /* reserved for further use ,... */ - unsigned int reserved4; /* reserved for further use ,... */ - unsigned int reserved5; /* reserved for further use ,... */ - unsigned int reserved6; /* reserved for further use ,... */ - unsigned int reserved7; /* reserved for further use ,... */ -} dasd_information2_t; - -/* - * values to be used for dasd_information_t.format - * 0x00: NOT formatted - * 0x01: Linux disc layout - * 0x02: Common disc layout - */ -#define DASD_FORMAT_NONE 0 -#define DASD_FORMAT_LDL 1 -#define DASD_FORMAT_CDL 2 -/* - * values to be used for dasd_information_t.features - * 0x00: default features - * 0x01: readonly (ro) - * 0x02: use diag discipline (diag) - * 0x04: set the device initially online (internal use only) - * 0x08: enable ERP related logging - * 0x20: give access to raw eckd data - */ -#define DASD_FEATURE_DEFAULT 0x00 -#define DASD_FEATURE_READONLY 0x01 -#define DASD_FEATURE_USEDIAG 0x02 -#define DASD_FEATURE_INITIAL_ONLINE 0x04 -#define DASD_FEATURE_ERPLOG 0x08 -#define DASD_FEATURE_FAILFAST 0x10 -#define DASD_FEATURE_FAILONSLCK 0x20 -#define DASD_FEATURE_USERAW 0x40 - -#define DASD_PARTN_BITS 2 - -/* - * struct dasd_information_t - * represents any data about the data, which is visible to userspace - */ -typedef struct dasd_information_t { - unsigned int devno; /* S/390 devno */ - unsigned int real_devno; /* for aliases */ - unsigned int schid; /* S/390 subchannel identifier */ - unsigned int cu_type : 16; /* from SenseID */ - unsigned int cu_model : 8; /* from SenseID */ - unsigned int dev_type : 16; /* from SenseID */ - unsigned int dev_model : 8; /* from SenseID */ - unsigned int open_count; - unsigned int req_queue_len; - unsigned int chanq_len; /* length of chanq */ - char type[4]; /* from discipline.name, 'none' for unknown */ - unsigned int status; /* current device level */ - unsigned int label_block; /* where to find the VOLSER */ - unsigned int FBA_layout; /* fixed block size (like AIXVOL) */ - unsigned int characteristics_size; - unsigned int confdata_size; - char characteristics[64]; /* from read_device_characteristics */ - char configuration_data[256]; /* from read_configuration_data */ -} dasd_information_t; - -/* - * Read Subsystem Data - Performance Statistics - */ -typedef struct dasd_rssd_perf_stats_t { - unsigned char invalid:1; - unsigned char format:3; - unsigned char data_format:4; - unsigned char unit_address; - unsigned short device_status; - unsigned int nr_read_normal; - unsigned int nr_read_normal_hits; - unsigned int nr_write_normal; - unsigned int nr_write_fast_normal_hits; - unsigned int nr_read_seq; - unsigned int nr_read_seq_hits; - unsigned int nr_write_seq; - unsigned int nr_write_fast_seq_hits; - unsigned int nr_read_cache; - unsigned int nr_read_cache_hits; - unsigned int nr_write_cache; - unsigned int nr_write_fast_cache_hits; - unsigned int nr_inhibit_cache; - unsigned int nr_bybass_cache; - unsigned int nr_seq_dasd_to_cache; - unsigned int nr_dasd_to_cache; - unsigned int nr_cache_to_dasd; - unsigned int nr_delayed_fast_write; - unsigned int nr_normal_fast_write; - unsigned int nr_seq_fast_write; - unsigned int nr_cache_miss; - unsigned char status2; - unsigned int nr_quick_write_promotes; - unsigned char reserved; - unsigned short ssid; - unsigned char reseved2[96]; -} __attribute__((packed)) dasd_rssd_perf_stats_t; - -/* - * struct profile_info_t - * holds the profinling information - */ -typedef struct dasd_profile_info_t { - unsigned int dasd_io_reqs; /* number of requests processed at all */ - unsigned int dasd_io_sects; /* number of sectors processed at all */ - unsigned int dasd_io_secs[32]; /* histogram of request's sizes */ - unsigned int dasd_io_times[32]; /* histogram of requests's times */ - unsigned int dasd_io_timps[32]; /* histogram of requests's times per sector */ - unsigned int dasd_io_time1[32]; /* histogram of time from build to start */ - unsigned int dasd_io_time2[32]; /* histogram of time from start to irq */ - unsigned int dasd_io_time2ps[32]; /* histogram of time from start to irq */ - unsigned int dasd_io_time3[32]; /* histogram of time from irq to end */ - unsigned int dasd_io_nr_req[32]; /* histogram of # of requests in chanq */ -} dasd_profile_info_t; - -/* - * struct format_data_t - * represents all data necessary to format a dasd - */ -typedef struct format_data_t { - unsigned int start_unit; /* from track */ - unsigned int stop_unit; /* to track */ - unsigned int blksize; /* sectorsize */ - unsigned int intensity; -} format_data_t; - -/* - * values to be used for format_data_t.intensity - * 0/8: normal format - * 1/9: also write record zero - * 3/11: also write home address - * 4/12: invalidate track - */ -#define DASD_FMT_INT_FMT_R0 1 /* write record zero */ -#define DASD_FMT_INT_FMT_HA 2 /* write home address, also set FMT_R0 ! */ -#define DASD_FMT_INT_INVAL 4 /* invalidate tracks */ -#define DASD_FMT_INT_COMPAT 8 /* use OS/390 compatible disk layout */ - - -/* - * struct attrib_data_t - * represents the operation (cache) bits for the device. - * Used in DE to influence caching of the DASD. - */ -typedef struct attrib_data_t { - unsigned char operation:3; /* cache operation mode */ - unsigned char reserved:5; /* cache operation mode */ - __u16 nr_cyl; /* no of cyliners for read ahaed */ - __u8 reserved2[29]; /* for future use */ -} __attribute__ ((packed)) attrib_data_t; - -/* definition of operation (cache) bits within attributes of DE */ -#define DASD_NORMAL_CACHE 0x0 -#define DASD_BYPASS_CACHE 0x1 -#define DASD_INHIBIT_LOAD 0x2 -#define DASD_SEQ_ACCESS 0x3 -#define DASD_SEQ_PRESTAGE 0x4 -#define DASD_REC_ACCESS 0x5 - -/* - * Perform EMC Symmetrix I/O - */ -typedef struct dasd_symmio_parms { - unsigned char reserved[8]; /* compat with older releases */ - unsigned long long psf_data; /* char * cast to u64 */ - unsigned long long rssd_result; /* char * cast to u64 */ - int psf_data_len; - int rssd_result_len; -} __attribute__ ((packed)) dasd_symmio_parms_t; - -/* - * Data returned by Sense Path Group ID (SNID) - */ -struct dasd_snid_data { - struct { - __u8 group:2; - __u8 reserve:2; - __u8 mode:1; - __u8 res:3; - } __attribute__ ((packed)) path_state; - __u8 pgid[11]; -} __attribute__ ((packed)); - -struct dasd_snid_ioctl_data { - struct dasd_snid_data data; - __u8 path_mask; -} __attribute__ ((packed)); - - -/******************************************************************************** - * SECTION: Definition of IOCTLs - * - * Here ist how the ioctl-nr should be used: - * 0 - 31 DASD driver itself - * 32 - 239 still open - * 240 - 255 reserved for EMC - *******************************************************************************/ - -/* Disable the volume (for Linux) */ -#define BIODASDDISABLE _IO(DASD_IOCTL_LETTER,0) -/* Enable the volume (for Linux) */ -#define BIODASDENABLE _IO(DASD_IOCTL_LETTER,1) -/* Issue a reserve/release command, rsp. */ -#define BIODASDRSRV _IO(DASD_IOCTL_LETTER,2) /* reserve */ -#define BIODASDRLSE _IO(DASD_IOCTL_LETTER,3) /* release */ -#define BIODASDSLCK _IO(DASD_IOCTL_LETTER,4) /* steal lock */ -/* reset profiling information of a device */ -#define BIODASDPRRST _IO(DASD_IOCTL_LETTER,5) -/* Quiesce IO on device */ -#define BIODASDQUIESCE _IO(DASD_IOCTL_LETTER,6) -/* Resume IO on device */ -#define BIODASDRESUME _IO(DASD_IOCTL_LETTER,7) - - -/* retrieve API version number */ -#define DASDAPIVER _IOR(DASD_IOCTL_LETTER,0,int) -/* Get information on a dasd device */ -#define BIODASDINFO _IOR(DASD_IOCTL_LETTER,1,dasd_information_t) -/* retrieve profiling information of a device */ -#define BIODASDPRRD _IOR(DASD_IOCTL_LETTER,2,dasd_profile_info_t) -/* Get information on a dasd device (enhanced) */ -#define BIODASDINFO2 _IOR(DASD_IOCTL_LETTER,3,dasd_information2_t) -/* Performance Statistics Read */ -#define BIODASDPSRD _IOR(DASD_IOCTL_LETTER,4,dasd_rssd_perf_stats_t) -/* Get Attributes (cache operations) */ -#define BIODASDGATTR _IOR(DASD_IOCTL_LETTER,5,attrib_data_t) - - -/* #define BIODASDFORMAT _IOW(IOCTL_LETTER,0,format_data_t) , deprecated */ -#define BIODASDFMT _IOW(DASD_IOCTL_LETTER,1,format_data_t) -/* Set Attributes (cache operations) */ -#define BIODASDSATTR _IOW(DASD_IOCTL_LETTER,2,attrib_data_t) - -/* Get Sense Path Group ID (SNID) data */ -#define BIODASDSNID _IOWR(DASD_IOCTL_LETTER, 1, struct dasd_snid_ioctl_data) - -#define BIODASDSYMMIO _IOWR(DASD_IOCTL_LETTER, 240, dasd_symmio_parms_t) - -#endif /* DASD_H */ - diff --git a/arch/s390/include/asm/debug.h b/arch/s390/include/asm/debug.h index 9d88db1f55d..530c15eb01e 100644 --- a/arch/s390/include/asm/debug.h +++ b/arch/s390/include/asm/debug.h @@ -1,43 +1,16 @@ /* - * include/asm-s390/debug.h * S/390 debug facility * - * Copyright (C) 1999, 2000 IBM Deutschland Entwicklung GmbH, - * IBM Corporation + * Copyright IBM Corp. 1999, 2000 */ - #ifndef DEBUG_H #define DEBUG_H -#include <linux/fs.h> - -/* Note: - * struct __debug_entry must be defined outside of #ifdef __KERNEL__ - * in order to allow a user program to analyze the 'raw'-view. - */ - -struct __debug_entry{ - union { - struct { - unsigned long long clock:52; - unsigned long long exception:1; - unsigned long long level:3; - unsigned long long cpuid:8; - } fields; - - unsigned long long stck; - } id; - void* caller; -} __attribute__((packed)); - - -#define __DEBUG_FEATURE_VERSION 2 /* version of debug feature */ - -#ifdef __KERNEL__ #include <linux/string.h> #include <linux/spinlock.h> #include <linux/kernel.h> #include <linux/time.h> +#include <uapi/asm/debug.h> #define DEBUG_MAX_LEVEL 6 /* debug levels range from 0 to 6 */ #define DEBUG_OFF_LEVEL -1 /* level where debug is switched off */ @@ -131,8 +104,14 @@ void debug_unregister(debug_info_t* id); void debug_set_level(debug_info_t* id, int new_level); +void debug_set_critical(void); void debug_stop_all(void); +static inline bool debug_level_enabled(debug_info_t* id, int level) +{ + return level <= id->level; +} + static inline debug_entry_t* debug_event(debug_info_t* id, int level, void* data, int length) { @@ -255,5 +234,4 @@ int debug_unregister_view(debug_info_t* id, struct debug_view* view); #define PRINT_FATAL(x...) printk ( KERN_DEBUG PRINTK_HEADER x ) #endif /* DASD_DEBUG */ -#endif /* __KERNEL__ */ #endif /* DEBUG_H */ diff --git a/arch/s390/include/asm/delay.h b/arch/s390/include/asm/delay.h index 0e3b35f96be..3f6e4095f47 100644 --- a/arch/s390/include/asm/delay.h +++ b/arch/s390/include/asm/delay.h @@ -1,8 +1,6 @@ /* - * include/asm-s390/delay.h - * * S390 version - * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation + * Copyright IBM Corp. 1999 * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com) * * Derived from "include/asm-i386/delay.h" diff --git a/arch/s390/include/asm/dis.h b/arch/s390/include/asm/dis.h new file mode 100644 index 00000000000..04a83f5773c --- /dev/null +++ b/arch/s390/include/asm/dis.h @@ -0,0 +1,52 @@ +/* + * Disassemble s390 instructions. + * + * Copyright IBM Corp. 2007 + * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com), + */ + +#ifndef __ASM_S390_DIS_H__ +#define __ASM_S390_DIS_H__ + +/* Type of operand */ +#define OPERAND_GPR 0x1 /* Operand printed as %rx */ +#define OPERAND_FPR 0x2 /* Operand printed as %fx */ +#define OPERAND_AR 0x4 /* Operand printed as %ax */ +#define OPERAND_CR 0x8 /* Operand printed as %cx */ +#define OPERAND_DISP 0x10 /* Operand printed as displacement */ +#define OPERAND_BASE 0x20 /* Operand printed as base register */ +#define OPERAND_INDEX 0x40 /* Operand printed as index register */ +#define OPERAND_PCREL 0x80 /* Operand printed as pc-relative symbol */ +#define OPERAND_SIGNED 0x100 /* Operand printed as signed value */ +#define OPERAND_LENGTH 0x200 /* Operand printed as length (+1) */ + + +struct s390_operand { + int bits; /* The number of bits in the operand. */ + int shift; /* The number of bits to shift. */ + int flags; /* One bit syntax flags. */ +}; + +struct s390_insn { + const char name[5]; + unsigned char opfrag; + unsigned char format; +}; + + +static inline int insn_length(unsigned char code) +{ + return ((((int) code + 64) >> 7) + 1) << 1; +} + +void show_code(struct pt_regs *regs); +void print_fn_code(unsigned char *code, unsigned long len); +int insn_to_mnemonic(unsigned char *instruction, char *buf, unsigned int len); +struct s390_insn *find_insn(unsigned char *code); + +static inline int is_known_insn(unsigned char *code) +{ + return !!find_insn(code); +} + +#endif /* __ASM_S390_DIS_H__ */ diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h new file mode 100644 index 00000000000..3fbc67d9e19 --- /dev/null +++ b/arch/s390/include/asm/dma-mapping.h @@ -0,0 +1,79 @@ +#ifndef _ASM_S390_DMA_MAPPING_H +#define _ASM_S390_DMA_MAPPING_H + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/mm.h> +#include <linux/scatterlist.h> +#include <linux/dma-attrs.h> +#include <linux/dma-debug.h> +#include <linux/io.h> + +#define DMA_ERROR_CODE (~(dma_addr_t) 0x0) + +extern struct dma_map_ops s390_dma_ops; + +static inline struct dma_map_ops *get_dma_ops(struct device *dev) +{ + return &s390_dma_ops; +} + +extern int dma_set_mask(struct device *dev, u64 mask); + +static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size, + enum dma_data_direction direction) +{ +} + +#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f) +#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h) + +#include <asm-generic/dma-mapping-common.h> + +static inline int dma_supported(struct device *dev, u64 mask) +{ + struct dma_map_ops *dma_ops = get_dma_ops(dev); + + if (dma_ops->dma_supported == NULL) + return 1; + return dma_ops->dma_supported(dev, mask); +} + +static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size) +{ + if (!dev->dma_mask) + return 0; + return addr + size - 1 <= *dev->dma_mask; +} + +static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) +{ + struct dma_map_ops *dma_ops = get_dma_ops(dev); + + debug_dma_mapping_error(dev, dma_addr); + if (dma_ops->mapping_error) + return dma_ops->mapping_error(dev, dma_addr); + return dma_addr == DMA_ERROR_CODE; +} + +static inline void *dma_alloc_coherent(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t flag) +{ + struct dma_map_ops *ops = get_dma_ops(dev); + void *ret; + + ret = ops->alloc(dev, size, dma_handle, flag, NULL); + debug_dma_alloc_coherent(dev, size, *dma_handle, ret); + return ret; +} + +static inline void dma_free_coherent(struct device *dev, size_t size, + void *cpu_addr, dma_addr_t dma_handle) +{ + struct dma_map_ops *dma_ops = get_dma_ops(dev); + + debug_dma_free_coherent(dev, size, cpu_addr, dma_handle); + dma_ops->free(dev, size, cpu_addr, dma_handle, NULL); +} + +#endif /* _ASM_S390_DMA_MAPPING_H */ diff --git a/arch/s390/include/asm/dma.h b/arch/s390/include/asm/dma.h index 7425c6af6cd..bb9bdcd2086 100644 --- a/arch/s390/include/asm/dma.h +++ b/arch/s390/include/asm/dma.h @@ -1,16 +1,19 @@ -/* - * include/asm-s390/dma.h - * - * S390 version - */ - -#ifndef _ASM_DMA_H -#define _ASM_DMA_H +#ifndef _ASM_S390_DMA_H +#define _ASM_S390_DMA_H -#include <asm/io.h> /* need byte IO */ +#include <asm/io.h> +/* + * MAX_DMA_ADDRESS is ambiguous because on s390 its completely unrelated + * to DMA. It _is_ used for the s390 memory zone split at 2GB caused + * by the 31 bit heritage. + */ #define MAX_DMA_ADDRESS 0x80000000 -#define free_dma(x) do { } while (0) +#ifdef CONFIG_PCI +extern int isa_dma_bridge_buggy; +#else +#define isa_dma_bridge_buggy (0) +#endif -#endif /* _ASM_DMA_H */ +#endif /* _ASM_S390_DMA_H */ diff --git a/arch/s390/include/asm/eadm.h b/arch/s390/include/asm/eadm.h new file mode 100644 index 00000000000..67026300c88 --- /dev/null +++ b/arch/s390/include/asm/eadm.h @@ -0,0 +1,117 @@ +#ifndef _ASM_S390_EADM_H +#define _ASM_S390_EADM_H + +#include <linux/types.h> +#include <linux/device.h> + +struct arqb { + u64 data; + u16 fmt:4; + u16:12; + u16 cmd_code; + u16:16; + u16 msb_count; + u32 reserved[12]; +} __packed; + +#define ARQB_CMD_MOVE 1 + +struct arsb { + u16 fmt:4; + u32:28; + u8 ef; + u8:8; + u8 ecbi; + u8:8; + u8 fvf; + u16:16; + u8 eqc; + u32:32; + u64 fail_msb; + u64 fail_aidaw; + u64 fail_ms; + u64 fail_scm; + u32 reserved[4]; +} __packed; + +#define EQC_WR_PROHIBIT 22 + +struct msb { + u8 fmt:4; + u8 oc:4; + u8 flags; + u16:12; + u16 bs:4; + u32 blk_count; + u64 data_addr; + u64 scm_addr; + u64:64; +} __packed; + +struct aidaw { + u8 flags; + u32 :24; + u32 :32; + u64 data_addr; +} __packed; + +#define MSB_OC_CLEAR 0 +#define MSB_OC_READ 1 +#define MSB_OC_WRITE 2 +#define MSB_OC_RELEASE 3 + +#define MSB_FLAG_BNM 0x80 +#define MSB_FLAG_IDA 0x40 + +#define MSB_BS_4K 0 +#define MSB_BS_1M 1 + +#define AOB_NR_MSB 124 + +struct aob { + struct arqb request; + struct arsb response; + struct msb msb[AOB_NR_MSB]; +} __packed __aligned(PAGE_SIZE); + +struct aob_rq_header { + struct scm_device *scmdev; + char data[0]; +}; + +struct scm_device { + u64 address; + u64 size; + unsigned int nr_max_block; + struct device dev; + struct { + unsigned int persistence:4; + unsigned int oper_state:4; + unsigned int data_state:4; + unsigned int rank:4; + unsigned int release:1; + unsigned int res_id:8; + } __packed attrs; +}; + +#define OP_STATE_GOOD 1 +#define OP_STATE_TEMP_ERR 2 +#define OP_STATE_PERM_ERR 3 + +enum scm_event {SCM_CHANGE, SCM_AVAIL}; + +struct scm_driver { + struct device_driver drv; + int (*probe) (struct scm_device *scmdev); + int (*remove) (struct scm_device *scmdev); + void (*notify) (struct scm_device *scmdev, enum scm_event event); + void (*handler) (struct scm_device *scmdev, void *data, int error); +}; + +int scm_driver_register(struct scm_driver *scmdrv); +void scm_driver_unregister(struct scm_driver *scmdrv); + +int eadm_start_aob(struct aob *aob); +void scm_irq_handler(struct aob *aob, int error); + +#endif /* _ASM_S390_EADM_H */ diff --git a/arch/s390/include/asm/ebcdic.h b/arch/s390/include/asm/ebcdic.h index 7f6f641d32f..c5befc5a3bf 100644 --- a/arch/s390/include/asm/ebcdic.h +++ b/arch/s390/include/asm/ebcdic.h @@ -1,9 +1,8 @@ /* - * include/asm-s390/ebcdic.h * EBCDIC -> ASCII, ASCII -> EBCDIC conversion routines. * * S390 version - * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation + * Copyright IBM Corp. 1999 * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com> */ diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h index 547f1a6a35d..78f4f8711d5 100644 --- a/arch/s390/include/asm/elf.h +++ b/arch/s390/include/asm/elf.h @@ -1,6 +1,4 @@ /* - * include/asm-s390/elf.h - * * S390 version * * Derived from "include/asm-i386/elf.h" @@ -103,15 +101,16 @@ #define HWCAP_S390_HPAGE 128 #define HWCAP_S390_ETF3EH 256 #define HWCAP_S390_HIGH_GPRS 512 +#define HWCAP_S390_TE 1024 /* * These are used to set parameters in the core dumps. */ -#ifndef __s390x__ +#ifndef CONFIG_64BIT #define ELF_CLASS ELFCLASS32 -#else /* __s390x__ */ +#else /* CONFIG_64BIT */ #define ELF_CLASS ELFCLASS64 -#endif /* __s390x__ */ +#endif /* CONFIG_64BIT */ #define ELF_DATA ELFDATA2MSB #define ELF_ARCH EM_S390 @@ -120,6 +119,8 @@ */ #include <asm/ptrace.h> +#include <asm/compat.h> +#include <asm/syscall.h> #include <asm/user.h> typedef s390_fp_regs elf_fpregset_t; @@ -129,7 +130,6 @@ typedef s390_fp_regs compat_elf_fpregset_t; typedef s390_compat_regs compat_elf_gregset_t; #include <linux/sched.h> /* for task_struct */ -#include <asm/system.h> /* for save_access_regs */ #include <asm/mmu_context.h> #include <asm/vdso.h> @@ -182,20 +182,31 @@ extern unsigned long elf_hwcap; extern char elf_platform[]; #define ELF_PLATFORM (elf_platform) -#ifndef __s390x__ -#define SET_PERSONALITY(ex) set_personality(PER_LINUX) -#else /* __s390x__ */ +#ifndef CONFIG_COMPAT +#define SET_PERSONALITY(ex) \ +do { \ + set_personality(PER_LINUX | \ + (current->personality & (~PER_MASK))); \ + current_thread_info()->sys_call_table = \ + (unsigned long) &sys_call_table; \ +} while (0) +#else /* CONFIG_COMPAT */ #define SET_PERSONALITY(ex) \ do { \ if (personality(current->personality) != PER_LINUX32) \ set_personality(PER_LINUX | \ (current->personality & ~PER_MASK)); \ - if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \ + if ((ex).e_ident[EI_CLASS] == ELFCLASS32) { \ set_thread_flag(TIF_31BIT); \ - else \ + current_thread_info()->sys_call_table = \ + (unsigned long) &sys_call_table_emu; \ + } else { \ clear_thread_flag(TIF_31BIT); \ + current_thread_info()->sys_call_table = \ + (unsigned long) &sys_call_table; \ + } \ } while (0) -#endif /* __s390x__ */ +#endif /* CONFIG_COMPAT */ #define STACK_RND_MASK 0x7ffUL @@ -214,4 +225,6 @@ int arch_setup_additional_pages(struct linux_binprm *, int); extern unsigned long arch_randomize_brk(struct mm_struct *mm); #define arch_randomize_brk arch_randomize_brk +void *fill_cpu_elf_notes(void *ptr, struct save_area *sa); + #endif diff --git a/arch/s390/include/asm/errno.h b/arch/s390/include/asm/errno.h deleted file mode 100644 index e41d5b37c4d..00000000000 --- a/arch/s390/include/asm/errno.h +++ /dev/null @@ -1,13 +0,0 @@ -/* - * include/asm-s390/errno.h - * - * S390 version - * - */ - -#ifndef _S390_ERRNO_H -#define _S390_ERRNO_H - -#include <asm-generic/errno.h> - -#endif diff --git a/arch/s390/include/asm/etr.h b/arch/s390/include/asm/etr.h index 538e1b36a72..629b79a9316 100644 --- a/arch/s390/include/asm/etr.h +++ b/arch/s390/include/asm/etr.h @@ -1,6 +1,4 @@ /* - * include/asm-s390/etr.h - * * Copyright IBM Corp. 2006 * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com) */ @@ -142,7 +140,7 @@ struct etr_ptff_qto { /* Inline assembly helper functions */ static inline int etr_setr(struct etr_eacr *ctrl) { - int rc = -ENOSYS; + int rc = -EOPNOTSUPP; asm volatile( " .insn s,0xb2160000,%1\n" @@ -156,7 +154,7 @@ static inline int etr_setr(struct etr_eacr *ctrl) /* Stores a format 1 aib with 64 bytes */ static inline int etr_stetr(struct etr_aib *aib) { - int rc = -ENOSYS; + int rc = -EOPNOTSUPP; asm volatile( " .insn s,0xb2170000,%1\n" @@ -171,7 +169,7 @@ static inline int etr_stetr(struct etr_aib *aib) static inline int etr_steai(struct etr_aib *aib, unsigned int func) { register unsigned int reg0 asm("0") = func; - int rc = -ENOSYS; + int rc = -EOPNOTSUPP; asm volatile( " .insn s,0xb2b30000,%1\n" @@ -192,7 +190,7 @@ static inline int etr_ptff(void *ptff_block, unsigned int func) { register unsigned int reg0 asm("0") = func; register unsigned long reg1 asm("1") = (unsigned long) ptff_block; - int rc = -ENOSYS; + int rc = -EOPNOTSUPP; asm volatile( " .word 0x0104\n" diff --git a/arch/s390/include/asm/exec.h b/arch/s390/include/asm/exec.h new file mode 100644 index 00000000000..c4a93d6327f --- /dev/null +++ b/arch/s390/include/asm/exec.h @@ -0,0 +1,12 @@ +/* + * Copyright IBM Corp. 1999, 2009 + * + * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com> + */ + +#ifndef __ASM_EXEC_H +#define __ASM_EXEC_H + +extern unsigned long arch_align_stack(unsigned long sp); + +#endif /* __ASM_EXEC_H */ diff --git a/arch/s390/include/asm/extmem.h b/arch/s390/include/asm/extmem.h index 33837d75618..6276002d76b 100644 --- a/arch/s390/include/asm/extmem.h +++ b/arch/s390/include/asm/extmem.h @@ -1,8 +1,6 @@ /* - * include/asm-s390x/extmem.h - * * definitions for external memory segment support - * Copyright (C) 2003 IBM Deutschland Entwicklung GmbH, IBM Corporation + * Copyright IBM Corp. 2003 */ #ifndef _ASM_S390X_DCSS_H diff --git a/arch/s390/include/asm/facility.h b/arch/s390/include/asm/facility.h new file mode 100644 index 00000000000..0aa6a7ed95a --- /dev/null +++ b/arch/s390/include/asm/facility.h @@ -0,0 +1,67 @@ +/* + * Copyright IBM Corp. 1999, 2009 + * + * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com> + */ + +#ifndef __ASM_FACILITY_H +#define __ASM_FACILITY_H + +#include <linux/string.h> +#include <linux/preempt.h> +#include <asm/lowcore.h> + +#define MAX_FACILITY_BIT (256*8) /* stfle_fac_list has 256 bytes */ + +static inline int __test_facility(unsigned long nr, void *facilities) +{ + unsigned char *ptr; + + if (nr >= MAX_FACILITY_BIT) + return 0; + ptr = (unsigned char *) facilities + (nr >> 3); + return (*ptr & (0x80 >> (nr & 7))) != 0; +} + +/* + * The test_facility function uses the bit odering where the MSB is bit 0. + * That makes it easier to query facility bits with the bit number as + * documented in the Principles of Operation. + */ +static inline int test_facility(unsigned long nr) +{ + return __test_facility(nr, &S390_lowcore.stfle_fac_list); +} + +/** + * stfle - Store facility list extended + * @stfle_fac_list: array where facility list can be stored + * @size: size of passed in array in double words + */ +static inline void stfle(u64 *stfle_fac_list, int size) +{ + unsigned long nr; + + preempt_disable(); + asm volatile( + " .insn s,0xb2b10000,0(0)\n" /* stfl */ + "0:\n" + EX_TABLE(0b, 0b) + : "+m" (S390_lowcore.stfl_fac_list)); + nr = 4; /* bytes stored by stfl */ + memcpy(stfle_fac_list, &S390_lowcore.stfl_fac_list, 4); + if (S390_lowcore.stfl_fac_list & 0x01000000) { + /* More facility bits available with stfle */ + register unsigned long reg0 asm("0") = size - 1; + + asm volatile(".insn s,0xb2b00000,0(%1)" /* stfle */ + : "+d" (reg0) + : "a" (stfle_fac_list) + : "memory", "cc"); + nr = (reg0 + 1) * 8; /* # bytes stored by stfle */ + } + memset((char *) stfle_fac_list + nr, 0, size * 8 - nr); + preempt_enable(); +} + +#endif /* __ASM_FACILITY_H */ diff --git a/arch/s390/include/asm/fcntl.h b/arch/s390/include/asm/fcntl.h deleted file mode 100644 index 46ab12db573..00000000000 --- a/arch/s390/include/asm/fcntl.h +++ /dev/null @@ -1 +0,0 @@ -#include <asm-generic/fcntl.h> diff --git a/arch/s390/include/asm/fcx.h b/arch/s390/include/asm/fcx.h index ef617099507..7ecb92b469b 100644 --- a/arch/s390/include/asm/fcx.h +++ b/arch/s390/include/asm/fcx.h @@ -12,9 +12,9 @@ #define TCW_FORMAT_DEFAULT 0 #define TCW_TIDAW_FORMAT_DEFAULT 0 -#define TCW_FLAGS_INPUT_TIDA 1 << (23 - 5) -#define TCW_FLAGS_TCCB_TIDA 1 << (23 - 6) -#define TCW_FLAGS_OUTPUT_TIDA 1 << (23 - 7) +#define TCW_FLAGS_INPUT_TIDA (1 << (23 - 5)) +#define TCW_FLAGS_TCCB_TIDA (1 << (23 - 6)) +#define TCW_FLAGS_OUTPUT_TIDA (1 << (23 - 7)) #define TCW_FLAGS_TIDAW_FORMAT(x) ((x) & 3) << (23 - 9) #define TCW_FLAGS_GET_TIDAW_FORMAT(x) (((x) >> (23 - 9)) & 3) @@ -54,11 +54,11 @@ struct tcw { u32 intrg; } __attribute__ ((packed, aligned(64))); -#define TIDAW_FLAGS_LAST 1 << (7 - 0) -#define TIDAW_FLAGS_SKIP 1 << (7 - 1) -#define TIDAW_FLAGS_DATA_INT 1 << (7 - 2) -#define TIDAW_FLAGS_TTIC 1 << (7 - 3) -#define TIDAW_FLAGS_INSERT_CBC 1 << (7 - 4) +#define TIDAW_FLAGS_LAST (1 << (7 - 0)) +#define TIDAW_FLAGS_SKIP (1 << (7 - 1)) +#define TIDAW_FLAGS_DATA_INT (1 << (7 - 2)) +#define TIDAW_FLAGS_TTIC (1 << (7 - 3)) +#define TIDAW_FLAGS_INSERT_CBC (1 << (7 - 4)) /** * struct tidaw - Transport-Indirect-Addressing Word (TIDAW) @@ -106,9 +106,9 @@ struct tsa_ddpc { u8 sense[32]; } __attribute__ ((packed)); -#define TSA_INTRG_FLAGS_CU_STATE_VALID 1 << (7 - 0) -#define TSA_INTRG_FLAGS_DEV_STATE_VALID 1 << (7 - 1) -#define TSA_INTRG_FLAGS_OP_STATE_VALID 1 << (7 - 2) +#define TSA_INTRG_FLAGS_CU_STATE_VALID (1 << (7 - 0)) +#define TSA_INTRG_FLAGS_DEV_STATE_VALID (1 << (7 - 1)) +#define TSA_INTRG_FLAGS_OP_STATE_VALID (1 << (7 - 2)) /** * struct tsa_intrg - Interrogate Transport-Status Area (Intrg. TSA) @@ -140,10 +140,10 @@ struct tsa_intrg { #define TSB_FORMAT_DDPC 2 #define TSB_FORMAT_INTRG 3 -#define TSB_FLAGS_DCW_OFFSET_VALID 1 << (7 - 0) -#define TSB_FLAGS_COUNT_VALID 1 << (7 - 1) -#define TSB_FLAGS_CACHE_MISS 1 << (7 - 2) -#define TSB_FLAGS_TIME_VALID 1 << (7 - 3) +#define TSB_FLAGS_DCW_OFFSET_VALID (1 << (7 - 0)) +#define TSB_FLAGS_COUNT_VALID (1 << (7 - 1)) +#define TSB_FLAGS_CACHE_MISS (1 << (7 - 2)) +#define TSB_FLAGS_TIME_VALID (1 << (7 - 3)) #define TSB_FLAGS_FORMAT(x) ((x) & 7) #define TSB_FORMAT(t) ((t)->flags & 7) @@ -179,9 +179,9 @@ struct tsb { #define DCW_INTRG_RCQ_PRIMARY 1 #define DCW_INTRG_RCQ_SECONDARY 2 -#define DCW_INTRG_FLAGS_MPM 1 < (7 - 0) -#define DCW_INTRG_FLAGS_PPR 1 < (7 - 1) -#define DCW_INTRG_FLAGS_CRIT 1 < (7 - 2) +#define DCW_INTRG_FLAGS_MPM (1 << (7 - 0)) +#define DCW_INTRG_FLAGS_PPR (1 << (7 - 1)) +#define DCW_INTRG_FLAGS_CRIT (1 << (7 - 2)) /** * struct dcw_intrg_data - Interrogate DCW data @@ -216,7 +216,7 @@ struct dcw_intrg_data { u8 prog_data[0]; } __attribute__ ((packed)); -#define DCW_FLAGS_CC 1 << (7 - 1) +#define DCW_FLAGS_CC (1 << (7 - 1)) #define DCW_CMD_WRITE 0x01 #define DCW_CMD_READ 0x02 diff --git a/arch/s390/include/asm/ftrace.h b/arch/s390/include/asm/ftrace.h index b7931faaef6..bf246dae136 100644 --- a/arch/s390/include/asm/ftrace.h +++ b/arch/s390/include/asm/ftrace.h @@ -9,11 +9,6 @@ struct dyn_arch_ftrace { }; #define MCOUNT_ADDR ((long)_mcount) -#ifdef CONFIG_64BIT -#define MCOUNT_INSN_SIZE 12 -#else -#define MCOUNT_INSN_SIZE 20 -#endif static inline unsigned long ftrace_call_adjust(unsigned long addr) { @@ -21,4 +16,11 @@ static inline unsigned long ftrace_call_adjust(unsigned long addr) } #endif /* __ASSEMBLY__ */ + +#ifdef CONFIG_64BIT +#define MCOUNT_INSN_SIZE 12 +#else +#define MCOUNT_INSN_SIZE 22 +#endif + #endif /* _ASM_S390_FTRACE_H */ diff --git a/arch/s390/include/asm/futex.h b/arch/s390/include/asm/futex.h index 81cf36b691f..a4811aa0304 100644 --- a/arch/s390/include/asm/futex.h +++ b/arch/s390/include/asm/futex.h @@ -1,28 +1,63 @@ #ifndef _ASM_S390_FUTEX_H #define _ASM_S390_FUTEX_H -#ifdef __KERNEL__ - -#include <linux/futex.h> #include <linux/uaccess.h> +#include <linux/futex.h> +#include <asm/mmu_context.h> #include <asm/errno.h> -static inline int futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr) +#define __futex_atomic_op(insn, ret, oldval, newval, uaddr, oparg) \ + asm volatile( \ + " sacf 256\n" \ + "0: l %1,0(%6)\n" \ + "1:"insn \ + "2: cs %1,%2,0(%6)\n" \ + "3: jl 1b\n" \ + " lhi %0,0\n" \ + "4: sacf 768\n" \ + EX_TABLE(0b,4b) EX_TABLE(2b,4b) EX_TABLE(3b,4b) \ + : "=d" (ret), "=&d" (oldval), "=&d" (newval), \ + "=m" (*uaddr) \ + : "0" (-EFAULT), "d" (oparg), "a" (uaddr), \ + "m" (*uaddr) : "cc"); + +static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr) { int op = (encoded_op >> 28) & 7; int cmp = (encoded_op >> 24) & 15; int oparg = (encoded_op << 8) >> 20; int cmparg = (encoded_op << 20) >> 20; - int oldval, ret; + int oldval = 0, newval, ret; + load_kernel_asce(); if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28)) oparg = 1 << oparg; - if (! access_ok (VERIFY_WRITE, uaddr, sizeof(u32))) - return -EFAULT; - pagefault_disable(); - ret = uaccess.futex_atomic_op(op, uaddr, oparg, &oldval); + switch (op) { + case FUTEX_OP_SET: + __futex_atomic_op("lr %2,%5\n", + ret, oldval, newval, uaddr, oparg); + break; + case FUTEX_OP_ADD: + __futex_atomic_op("lr %2,%1\nar %2,%5\n", + ret, oldval, newval, uaddr, oparg); + break; + case FUTEX_OP_OR: + __futex_atomic_op("lr %2,%1\nor %2,%5\n", + ret, oldval, newval, uaddr, oparg); + break; + case FUTEX_OP_ANDN: + __futex_atomic_op("lr %2,%1\nnr %2,%5\n", + ret, oldval, newval, uaddr, oparg); + break; + case FUTEX_OP_XOR: + __futex_atomic_op("lr %2,%1\nxr %2,%5\n", + ret, oldval, newval, uaddr, oparg); + break; + default: + ret = -ENOSYS; + } pagefault_enable(); if (!ret) { @@ -42,11 +77,20 @@ static inline int futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr) static inline int futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr, u32 oldval, u32 newval) { - if (! access_ok (VERIFY_WRITE, uaddr, sizeof(u32))) - return -EFAULT; + int ret; - return uaccess.futex_atomic_cmpxchg(uval, uaddr, oldval, newval); + load_kernel_asce(); + asm volatile( + " sacf 256\n" + "0: cs %1,%4,0(%5)\n" + "1: la %0,0\n" + "2: sacf 768\n" + EX_TABLE(0b,2b) EX_TABLE(1b,2b) + : "=d" (ret), "+d" (oldval), "=m" (*uaddr) + : "0" (-EFAULT), "d" (newval), "a" (uaddr), "m" (*uaddr) + : "cc", "memory"); + *uval = oldval; + return ret; } -#endif /* __KERNEL__ */ #endif /* _ASM_S390_FUTEX_H */ diff --git a/arch/s390/include/asm/hardirq.h b/arch/s390/include/asm/hardirq.h index e4155d3eb2c..b7eabaaeffb 100644 --- a/arch/s390/include/asm/hardirq.h +++ b/arch/s390/include/asm/hardirq.h @@ -1,8 +1,6 @@ /* - * include/asm-s390/hardirq.h - * * S390 version - * Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation + * Copyright IBM Corp. 1999, 2000 * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com), * Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com) * @@ -18,7 +16,11 @@ #define __ARCH_IRQ_STAT #define __ARCH_HAS_DO_SOFTIRQ +#define __ARCH_IRQ_EXIT_IRQS_DISABLED -#define HARDIRQ_BITS 8 +static inline void ack_bad_irq(unsigned int irq) +{ + printk(KERN_CRIT "unexpected IRQ trap at vector %02x\n", irq); +} #endif /* __ASM_HARDIRQ_H */ diff --git a/arch/s390/include/asm/hugetlb.h b/arch/s390/include/asm/hugetlb.h index 799ed0f1643..11eae5f55b7 100644 --- a/arch/s390/include/asm/hugetlb.h +++ b/arch/s390/include/asm/hugetlb.h @@ -17,6 +17,9 @@ void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *ptep, pte_t pte); +pte_t huge_ptep_get(pte_t *ptep); +pte_t huge_ptep_get_and_clear(struct mm_struct *mm, + unsigned long addr, pte_t *ptep); /* * If the arch doesn't supply something else, assume that hugepage @@ -33,117 +36,80 @@ static inline int prepare_hugepage_range(struct file *file, } #define hugetlb_prefault_arch_hook(mm) do { } while (0) +#define arch_clear_hugepage_flags(page) do { } while (0) int arch_prepare_hugepage(struct page *page); void arch_release_hugepage(struct page *page); -static inline pte_t huge_pte_wrprotect(pte_t pte) +static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr, + pte_t *ptep) { - pte_val(pte) |= _PAGE_RO; - return pte; + pte_val(*ptep) = _SEGMENT_ENTRY_EMPTY; } -static inline int huge_pte_none(pte_t pte) +static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, + unsigned long address, pte_t *ptep) { - return (pte_val(pte) & _SEGMENT_ENTRY_INV) && - !(pte_val(pte) & _SEGMENT_ENTRY_RO); + huge_ptep_get_and_clear(vma->vm_mm, address, ptep); } -static inline pte_t huge_ptep_get(pte_t *ptep) +static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma, + unsigned long addr, pte_t *ptep, + pte_t pte, int dirty) { - pte_t pte = *ptep; - unsigned long mask; - - if (!MACHINE_HAS_HPAGE) { - ptep = (pte_t *) (pte_val(pte) & _SEGMENT_ENTRY_ORIGIN); - if (ptep) { - mask = pte_val(pte) & - (_SEGMENT_ENTRY_INV | _SEGMENT_ENTRY_RO); - pte = pte_mkhuge(*ptep); - pte_val(pte) |= mask; - } + int changed = !pte_same(huge_ptep_get(ptep), pte); + if (changed) { + huge_ptep_get_and_clear(vma->vm_mm, addr, ptep); + set_huge_pte_at(vma->vm_mm, addr, ptep, pte); } - return pte; + return changed; } -static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm, - unsigned long addr, pte_t *ptep) +static inline void huge_ptep_set_wrprotect(struct mm_struct *mm, + unsigned long addr, pte_t *ptep) { - pte_t pte = huge_ptep_get(ptep); + pte_t pte = huge_ptep_get_and_clear(mm, addr, ptep); + set_huge_pte_at(mm, addr, ptep, pte_wrprotect(pte)); +} - mm->context.flush_mm = 1; - pmd_clear((pmd_t *) ptep); - return pte; +static inline pte_t mk_huge_pte(struct page *page, pgprot_t pgprot) +{ + return mk_pte(page, pgprot); } -static inline void __pmd_csp(pmd_t *pmdp) +static inline int huge_pte_none(pte_t pte) { - register unsigned long reg2 asm("2") = pmd_val(*pmdp); - register unsigned long reg3 asm("3") = pmd_val(*pmdp) | - _SEGMENT_ENTRY_INV; - register unsigned long reg4 asm("4") = ((unsigned long) pmdp) + 5; - - asm volatile( - " csp %1,%3" - : "=m" (*pmdp) - : "d" (reg2), "d" (reg3), "d" (reg4), "m" (*pmdp) : "cc"); - pmd_val(*pmdp) = _SEGMENT_ENTRY_INV | _SEGMENT_ENTRY; + return pte_none(pte); } -static inline void __pmd_idte(unsigned long address, pmd_t *pmdp) +static inline int huge_pte_write(pte_t pte) { - unsigned long sto = (unsigned long) pmdp - - pmd_index(address) * sizeof(pmd_t); - - if (!(pmd_val(*pmdp) & _SEGMENT_ENTRY_INV)) { - asm volatile( - " .insn rrf,0xb98e0000,%2,%3,0,0" - : "=m" (*pmdp) - : "m" (*pmdp), "a" (sto), - "a" ((address & HPAGE_MASK)) - ); - } - pmd_val(*pmdp) = _SEGMENT_ENTRY_INV | _SEGMENT_ENTRY; + return pte_write(pte); +} + +static inline int huge_pte_dirty(pte_t pte) +{ + return pte_dirty(pte); } -static inline void huge_ptep_invalidate(struct mm_struct *mm, - unsigned long address, pte_t *ptep) +static inline pte_t huge_pte_mkwrite(pte_t pte) { - pmd_t *pmdp = (pmd_t *) ptep; + return pte_mkwrite(pte); +} - if (MACHINE_HAS_IDTE) - __pmd_idte(address, pmdp); - else - __pmd_csp(pmdp); +static inline pte_t huge_pte_mkdirty(pte_t pte) +{ + return pte_mkdirty(pte); } -#define huge_ptep_set_access_flags(__vma, __addr, __ptep, __entry, __dirty) \ -({ \ - int __changed = !pte_same(huge_ptep_get(__ptep), __entry); \ - if (__changed) { \ - huge_ptep_invalidate((__vma)->vm_mm, __addr, __ptep); \ - set_huge_pte_at((__vma)->vm_mm, __addr, __ptep, __entry); \ - } \ - __changed; \ -}) - -#define huge_ptep_set_wrprotect(__mm, __addr, __ptep) \ -({ \ - pte_t __pte = huge_ptep_get(__ptep); \ - if (pte_write(__pte)) { \ - (__mm)->context.flush_mm = 1; \ - if (atomic_read(&(__mm)->context.attach_count) > 1 || \ - (__mm) != current->active_mm) \ - huge_ptep_invalidate(__mm, __addr, __ptep); \ - set_huge_pte_at(__mm, __addr, __ptep, \ - huge_pte_wrprotect(__pte)); \ - } \ -}) +static inline pte_t huge_pte_wrprotect(pte_t pte) +{ + return pte_wrprotect(pte); +} -static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, - unsigned long address, pte_t *ptep) +static inline pte_t huge_pte_modify(pte_t pte, pgprot_t newprot) { - huge_ptep_invalidate(vma->vm_mm, address, ptep); + return pte_modify(pte, newprot); } #endif /* _ASM_S390_HUGETLB_H */ diff --git a/arch/s390/include/asm/hw_irq.h b/arch/s390/include/asm/hw_irq.h new file mode 100644 index 00000000000..ee96a8b697f --- /dev/null +++ b/arch/s390/include/asm/hw_irq.h @@ -0,0 +1,11 @@ +#ifndef _HW_IRQ_H +#define _HW_IRQ_H + +#include <linux/msi.h> +#include <linux/pci.h> + +void __init init_airq_interrupts(void); +void __init init_cio_interrupts(void); +void __init init_ext_interrupts(void); + +#endif diff --git a/arch/s390/include/asm/idals.h b/arch/s390/include/asm/idals.h index aae276d0038..ea5a6e45fd9 100644 --- a/arch/s390/include/asm/idals.h +++ b/arch/s390/include/asm/idals.h @@ -1,10 +1,9 @@ /* - * File...........: linux/include/asm-s390x/idals.h * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com> * Martin Schwidefsky <schwidefsky@de.ibm.com> * Bugreports.to..: <Linux390@de.ibm.com> - * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 2000a - + * Copyright IBM Corp. 2000 + * * History of changes * 07/24/00 new file * 05/04/02 code restructuring. @@ -20,7 +19,7 @@ #include <asm/cio.h> #include <asm/uaccess.h> -#ifdef __s390x__ +#ifdef CONFIG_64BIT #define IDA_SIZE_LOG 12 /* 11 for 2k , 12 for 4k */ #else #define IDA_SIZE_LOG 11 /* 11 for 2k , 12 for 4k */ @@ -33,7 +32,7 @@ static inline int idal_is_needed(void *vaddr, unsigned int length) { -#ifdef __s390x__ +#ifdef CONFIG_64BIT return ((__pa(vaddr) + length - 1) >> 31) != 0; #else return 0; @@ -78,7 +77,7 @@ static inline unsigned long *idal_create_words(unsigned long *idaws, static inline int set_normalized_cda(struct ccw1 * ccw, void *vaddr) { -#ifdef __s390x__ +#ifdef CONFIG_64BIT unsigned int nridaws; unsigned long *idal; @@ -105,7 +104,7 @@ set_normalized_cda(struct ccw1 * ccw, void *vaddr) static inline void clear_normalized_cda(struct ccw1 * ccw) { -#ifdef __s390x__ +#ifdef CONFIG_64BIT if (ccw->flags & CCW_FLAG_IDA) { kfree((void *)(unsigned long) ccw->cda); ccw->flags &= ~CCW_FLAG_IDA; @@ -182,7 +181,7 @@ idal_buffer_free(struct idal_buffer *ib) static inline int __idal_buffer_is_needed(struct idal_buffer *ib) { -#ifdef __s390x__ +#ifdef CONFIG_64BIT return ib->size > (4096ul << ib->page_order) || idal_is_needed(ib->data[0], ib->size); #else diff --git a/arch/s390/include/asm/io.h b/arch/s390/include/asm/io.h index b7ff6afc3ca..cd6b9ee7b69 100644 --- a/arch/s390/include/asm/io.h +++ b/arch/s390/include/asm/io.h @@ -1,8 +1,6 @@ /* - * include/asm-s390/io.h - * * S390 version - * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation + * Copyright IBM Corp. 1999 * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com) * * Derived from "include/asm-i386/io.h" @@ -11,44 +9,64 @@ #ifndef _S390_IO_H #define _S390_IO_H -#ifdef __KERNEL__ - +#include <linux/kernel.h> #include <asm/page.h> +#include <asm/pci_io.h> -#define IO_SPACE_LIMIT 0xffffffff +void *xlate_dev_mem_ptr(unsigned long phys); +#define xlate_dev_mem_ptr xlate_dev_mem_ptr +void unxlate_dev_mem_ptr(unsigned long phys, void *addr); /* - * Change virtual addresses to physical addresses and vv. - * These are pretty trivial + * Convert a virtual cached pointer to an uncached pointer */ -static inline unsigned long virt_to_phys(volatile void * address) +#define xlate_dev_kmem_ptr(p) p + +#define IO_SPACE_LIMIT 0 + +#ifdef CONFIG_PCI + +#define ioremap_nocache(addr, size) ioremap(addr, size) +#define ioremap_wc ioremap_nocache + +static inline void __iomem *ioremap(unsigned long offset, unsigned long size) { - unsigned long real_address; - asm volatile( - " lra %0,0(%1)\n" - " jz 0f\n" - " la %0,0\n" - "0:" - : "=a" (real_address) : "a" (address) : "cc"); - return real_address; + return (void __iomem *) offset; } -static inline void * phys_to_virt(unsigned long address) +static inline void iounmap(volatile void __iomem *addr) { - return (void *) address; } /* - * Convert a physical pointer to a virtual kernel pointer for /dev/mem - * access + * s390 needs a private implementation of pci_iomap since ioremap with its + * offset parameter isn't sufficient. That's because BAR spaces are not + * disjunctive on s390 so we need the bar parameter of pci_iomap to find + * the corresponding device and create the mapping cookie. */ -#define xlate_dev_mem_ptr(p) __va(p) +#define pci_iomap pci_iomap +#define pci_iounmap pci_iounmap -/* - * Convert a virtual cached pointer to an uncached pointer - */ -#define xlate_dev_kmem_ptr(p) p +#define memcpy_fromio(dst, src, count) zpci_memcpy_fromio(dst, src, count) +#define memcpy_toio(dst, src, count) zpci_memcpy_toio(dst, src, count) +#define memset_io(dst, val, count) zpci_memset_io(dst, val, count) + +#define __raw_readb zpci_read_u8 +#define __raw_readw zpci_read_u16 +#define __raw_readl zpci_read_u32 +#define __raw_readq zpci_read_u64 +#define __raw_writeb zpci_write_u8 +#define __raw_writew zpci_write_u16 +#define __raw_writel zpci_write_u32 +#define __raw_writeq zpci_write_u64 + +#define readb_relaxed readb +#define readw_relaxed readw +#define readl_relaxed readl +#define readq_relaxed readq + +#endif /* CONFIG_PCI */ -#endif /* __KERNEL__ */ +#include <asm-generic/io.h> #endif diff --git a/arch/s390/include/asm/ioctl.h b/arch/s390/include/asm/ioctl.h deleted file mode 100644 index b279fe06dfe..00000000000 --- a/arch/s390/include/asm/ioctl.h +++ /dev/null @@ -1 +0,0 @@ -#include <asm-generic/ioctl.h> diff --git a/arch/s390/include/asm/ioctls.h b/arch/s390/include/asm/ioctls.h deleted file mode 100644 index 960a4c1ebdf..00000000000 --- a/arch/s390/include/asm/ioctls.h +++ /dev/null @@ -1,8 +0,0 @@ -#ifndef __ARCH_S390_IOCTLS_H__ -#define __ARCH_S390_IOCTLS_H__ - -#define FIOQSIZE 0x545E - -#include <asm-generic/ioctls.h> - -#endif diff --git a/arch/s390/include/asm/ipcbuf.h b/arch/s390/include/asm/ipcbuf.h deleted file mode 100644 index 37f293d12c8..00000000000 --- a/arch/s390/include/asm/ipcbuf.h +++ /dev/null @@ -1,31 +0,0 @@ -#ifndef __S390_IPCBUF_H__ -#define __S390_IPCBUF_H__ - -/* - * The user_ipc_perm structure for S/390 architecture. - * Note extra padding because this structure is passed back and forth - * between kernel and user space. - * - * Pad space is left for: - * - 32-bit mode_t and seq - * - 2 miscellaneous 32-bit values - */ - -struct ipc64_perm -{ - __kernel_key_t key; - __kernel_uid32_t uid; - __kernel_gid32_t gid; - __kernel_uid32_t cuid; - __kernel_gid32_t cgid; - __kernel_mode_t mode; - unsigned short __pad1; - unsigned short seq; -#ifndef __s390x__ - unsigned short __pad2; -#endif /* ! __s390x__ */ - unsigned long __unused1; - unsigned long __unused2; -}; - -#endif /* __S390_IPCBUF_H__ */ diff --git a/arch/s390/include/asm/ipl.h b/arch/s390/include/asm/ipl.h index 6940abfbe1d..2fcccc0c997 100644 --- a/arch/s390/include/asm/ipl.h +++ b/arch/s390/include/asm/ipl.h @@ -7,6 +7,7 @@ #ifndef _ASM_S390_IPL_H #define _ASM_S390_IPL_H +#include <asm/lowcore.h> #include <asm/types.h> #include <asm/cio.h> #include <asm/setup.h> @@ -86,7 +87,14 @@ struct ipl_parameter_block { */ extern u32 ipl_flags; extern u32 dump_prefix_page; -extern unsigned int zfcpdump_prefix_array[]; + +struct dump_save_areas { + struct save_area **areas; + int count; +}; + +extern struct dump_save_areas dump_save_areas; +struct save_area *dump_save_area_create(int cpu); extern void do_reipl(void); extern void do_halt(void); @@ -169,5 +177,6 @@ enum diag308_rc { extern int diag308(unsigned long subcode, void *addr); extern void diag308_reset(void); extern void store_status(void); +extern void lgr_info_log(void); #endif /* _ASM_S390_IPL_H */ diff --git a/arch/s390/include/asm/irq.h b/arch/s390/include/asm/irq.h index ba6d85f88d5..c4dd400a279 100644 --- a/arch/s390/include/asm/irq.h +++ b/arch/s390/include/asm/irq.h @@ -1,44 +1,109 @@ #ifndef _ASM_IRQ_H #define _ASM_IRQ_H +#define EXT_INTERRUPT 1 +#define IO_INTERRUPT 2 +#define THIN_INTERRUPT 3 + +#define NR_IRQS_BASE 4 + +#ifdef CONFIG_PCI_NR_MSI +# define NR_IRQS (NR_IRQS_BASE + CONFIG_PCI_NR_MSI) +#else +# define NR_IRQS NR_IRQS_BASE +#endif + +/* This number is used when no interrupt has been assigned */ +#define NO_IRQ 0 + +/* External interruption codes */ +#define EXT_IRQ_INTERRUPT_KEY 0x0040 +#define EXT_IRQ_CLK_COMP 0x1004 +#define EXT_IRQ_CPU_TIMER 0x1005 +#define EXT_IRQ_WARNING_TRACK 0x1007 +#define EXT_IRQ_MALFUNC_ALERT 0x1200 +#define EXT_IRQ_EMERGENCY_SIG 0x1201 +#define EXT_IRQ_EXTERNAL_CALL 0x1202 +#define EXT_IRQ_TIMING_ALERT 0x1406 +#define EXT_IRQ_MEASURE_ALERT 0x1407 +#define EXT_IRQ_SERVICE_SIG 0x2401 +#define EXT_IRQ_CP_SERVICE 0x2603 +#define EXT_IRQ_IUCV 0x4000 + +#ifndef __ASSEMBLY__ + #include <linux/hardirq.h> +#include <linux/percpu.h> +#include <linux/cache.h> #include <linux/types.h> enum interruption_class { - EXTERNAL_INTERRUPT, - IO_INTERRUPT, - EXTINT_CLK, - EXTINT_EXC, - EXTINT_EMS, - EXTINT_TMR, - EXTINT_TLA, - EXTINT_PFL, - EXTINT_DSD, - EXTINT_VRT, - EXTINT_SCP, - EXTINT_IUC, - EXTINT_CPM, - IOINT_CIO, - IOINT_QAI, - IOINT_DAS, - IOINT_C15, - IOINT_C70, - IOINT_TAP, - IOINT_VMR, - IOINT_LCS, - IOINT_CLW, - IOINT_CTC, - IOINT_APB, - IOINT_CSC, + IRQEXT_CLK, + IRQEXT_EXC, + IRQEXT_EMS, + IRQEXT_TMR, + IRQEXT_TLA, + IRQEXT_PFL, + IRQEXT_DSD, + IRQEXT_VRT, + IRQEXT_SCP, + IRQEXT_IUC, + IRQEXT_CMS, + IRQEXT_CMC, + IRQEXT_CMR, + IRQIO_CIO, + IRQIO_QAI, + IRQIO_DAS, + IRQIO_C15, + IRQIO_C70, + IRQIO_TAP, + IRQIO_VMR, + IRQIO_LCS, + IRQIO_CLW, + IRQIO_CTC, + IRQIO_APB, + IRQIO_ADM, + IRQIO_CSC, + IRQIO_PCI, + IRQIO_MSI, + IRQIO_VIR, + IRQIO_VAI, NMI_NMI, - NR_IRQS, + CPU_RST, + NR_ARCH_IRQS +}; + +struct irq_stat { + unsigned int irqs[NR_ARCH_IRQS]; }; -typedef void (*ext_int_handler_t)(unsigned int, unsigned int, unsigned long); +DECLARE_PER_CPU_SHARED_ALIGNED(struct irq_stat, irq_stat); + +static __always_inline void inc_irq_stat(enum interruption_class irq) +{ + __get_cpu_var(irq_stat).irqs[irq]++; +} + +struct ext_code { + unsigned short subcode; + unsigned short code; +}; + +typedef void (*ext_int_handler_t)(struct ext_code, unsigned int, unsigned long); + +int register_external_irq(u16 code, ext_int_handler_t handler); +int unregister_external_irq(u16 code, ext_int_handler_t handler); + +enum irq_subclass { + IRQ_SUBCLASS_MEASUREMENT_ALERT = 5, + IRQ_SUBCLASS_SERVICE_SIGNAL = 9, +}; + +void irq_subclass_register(enum irq_subclass subclass); +void irq_subclass_unregister(enum irq_subclass subclass); + +#define irq_canonicalize(irq) (irq) -int register_external_interrupt(u16 code, ext_int_handler_t handler); -int unregister_external_interrupt(u16 code, ext_int_handler_t handler); -void service_subclass_irq_register(void); -void service_subclass_irq_unregister(void); +#endif /* __ASSEMBLY__ */ #endif /* _ASM_IRQ_H */ diff --git a/arch/s390/include/asm/irqflags.h b/arch/s390/include/asm/irqflags.h index 38fdf451feb..37b9091ab8c 100644 --- a/arch/s390/include/asm/irqflags.h +++ b/arch/s390/include/asm/irqflags.h @@ -1,5 +1,5 @@ /* - * Copyright IBM Corp. 2006,2010 + * Copyright IBM Corp. 2006, 2010 * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com> */ diff --git a/arch/s390/include/asm/isc.h b/arch/s390/include/asm/isc.h index 1420a111594..68d7d68300f 100644 --- a/arch/s390/include/asm/isc.h +++ b/arch/s390/include/asm/isc.h @@ -14,9 +14,11 @@ /* Regular I/O interrupts. */ #define IO_SCH_ISC 3 /* regular I/O subchannels */ #define CONSOLE_ISC 1 /* console I/O subchannel */ +#define EADM_SCH_ISC 4 /* EADM subchannels */ #define CHSC_SCH_ISC 7 /* CHSC subchannels */ /* Adapter interrupts. */ #define QDIO_AIRQ_ISC IO_SCH_ISC /* I/O subchannel in qdio mode */ +#define PCI_ISC 2 /* PCI I/O subchannels */ #define AP_ISC 6 /* adjunct processor (crypto) devices */ /* Functions for registration of I/O interruption subclasses */ diff --git a/arch/s390/include/asm/jump_label.h b/arch/s390/include/asm/jump_label.h index 95a6cf2b5b6..346b1c85ffb 100644 --- a/arch/s390/include/asm/jump_label.h +++ b/arch/s390/include/asm/jump_label.h @@ -13,9 +13,9 @@ #define ASM_ALIGN ".balign 4" #endif -static __always_inline bool arch_static_branch(struct jump_label_key *key) +static __always_inline bool arch_static_branch(struct static_key *key) { - asm goto("0: brcl 0,0\n" + asm_volatile_goto("0: brcl 0,0\n" ".pushsection __jump_table, \"aw\"\n" ASM_ALIGN "\n" ASM_PTR " 0b, %l[label], %0\n" diff --git a/arch/s390/include/asm/kexec.h b/arch/s390/include/asm/kexec.h index 3f30dac804e..694bcd6bd92 100644 --- a/arch/s390/include/asm/kexec.h +++ b/arch/s390/include/asm/kexec.h @@ -1,7 +1,5 @@ /* - * include/asm-s390/kexec.h - * - * (C) Copyright IBM Corp. 2005 + * Copyright IBM Corp. 2005 * * Author(s): Rolf Adelsberger <adelsberger@de.ibm.com> * @@ -10,10 +8,8 @@ #ifndef _S390_KEXEC_H #define _S390_KEXEC_H -#ifdef __KERNEL__ -#include <asm/page.h> -#endif #include <asm/processor.h> +#include <asm/page.h> /* * KEXEC_SOURCE_MEMORY_LIMIT maximum page get_free_page can return. * I.e. Maximum page that is mapped directly into kernel memory, diff --git a/arch/s390/include/asm/kmap_types.h b/arch/s390/include/asm/kmap_types.h index 94ec3ee0798..0a88622339e 100644 --- a/arch/s390/include/asm/kmap_types.h +++ b/arch/s390/include/asm/kmap_types.h @@ -1,8 +1,6 @@ -#ifdef __KERNEL__ #ifndef _ASM_KMAP_TYPES_H #define _ASM_KMAP_TYPES_H #include <asm-generic/kmap_types.h> #endif -#endif /* __KERNEL__ */ diff --git a/arch/s390/include/asm/kprobes.h b/arch/s390/include/asm/kprobes.h index a231a9439c4..4176dfe0fba 100644 --- a/arch/s390/include/asm/kprobes.h +++ b/arch/s390/include/asm/kprobes.h @@ -17,7 +17,7 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * - * Copyright (C) IBM Corporation, 2002, 2006 + * Copyright IBM Corp. 2002, 2006 * * 2002-Oct Created by Vamsi Krishna S <vamsi_krishna@in.ibm.com> Kernel * Probes initial implementation ( includes suggestions from @@ -31,6 +31,8 @@ #include <linux/ptrace.h> #include <linux/percpu.h> +#define __ARCH_WANT_KPROBES_INSN_SLOT + struct pt_regs; struct kprobe; @@ -57,7 +59,7 @@ typedef u16 kprobe_opcode_t; /* Architecture specific copy of original instruction */ struct arch_specific_insn { /* copy of original instruction */ - kprobe_opcode_t insn[MAX_INSN_SIZE]; + kprobe_opcode_t *insn; }; struct prev_kprobe { diff --git a/arch/s390/include/asm/kvm.h b/arch/s390/include/asm/kvm.h deleted file mode 100644 index 82b32a100c7..00000000000 --- a/arch/s390/include/asm/kvm.h +++ /dev/null @@ -1,44 +0,0 @@ -#ifndef __LINUX_KVM_S390_H -#define __LINUX_KVM_S390_H -/* - * asm-s390/kvm.h - KVM s390 specific structures and definitions - * - * Copyright IBM Corp. 2008 - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License (version 2 only) - * as published by the Free Software Foundation. - * - * Author(s): Carsten Otte <cotte@de.ibm.com> - * Christian Borntraeger <borntraeger@de.ibm.com> - */ -#include <linux/types.h> - -#define __KVM_S390 - -/* for KVM_GET_REGS and KVM_SET_REGS */ -struct kvm_regs { - /* general purpose regs for s390 */ - __u64 gprs[16]; -}; - -/* for KVM_GET_SREGS and KVM_SET_SREGS */ -struct kvm_sregs { - __u32 acrs[16]; - __u64 crs[16]; -}; - -/* for KVM_GET_FPU and KVM_SET_FPU */ -struct kvm_fpu { - __u32 fpc; - __u64 fprs[16]; -}; - -struct kvm_debug_exit_arch { -}; - -/* for KVM_SET_GUEST_DEBUG */ -struct kvm_guest_debug_arch { -}; - -#endif diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h index b0c235cb6ad..4181d7baabb 100644 --- a/arch/s390/include/asm/kvm_host.h +++ b/arch/s390/include/asm/kvm_host.h @@ -1,7 +1,7 @@ /* - * asm-s390/kvm_host.h - definition for kernel virtual machines on s390 + * definition for kernel virtual machines on s390 * - * Copyright IBM Corp. 2008,2009 + * Copyright IBM Corp. 2008, 2009 * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License (version 2 only) @@ -16,37 +16,48 @@ #include <linux/hrtimer.h> #include <linux/interrupt.h> #include <linux/kvm_host.h> +#include <linux/kvm.h> #include <asm/debug.h> #include <asm/cpu.h> +#include <asm/isc.h> #define KVM_MAX_VCPUS 64 -#define KVM_MEMORY_SLOTS 32 -/* memory slots that does not exposed to userspace */ -#define KVM_PRIVATE_MEM_SLOTS 4 +#define KVM_USER_MEM_SLOTS 32 + +/* + * These seem to be used for allocating ->chip in the routing table, + * which we don't use. 4096 is an out-of-thin-air value. If we need + * to look at ->chip later on, we'll need to revisit this. + */ +#define KVM_NR_IRQCHIPS 1 +#define KVM_IRQCHIP_NUM_PINS 4096 + +#define SIGP_CTRL_C 0x00800000 struct sca_entry { - atomic_t scn; + atomic_t ctrl; __u32 reserved; __u64 sda; __u64 reserved2[2]; } __attribute__((packed)); +union ipte_control { + unsigned long val; + struct { + unsigned long k : 1; + unsigned long kh : 31; + unsigned long kg : 32; + }; +}; struct sca_block { - __u64 ipte_control; + union ipte_control ipte_control; __u64 reserved[5]; __u64 mcn; __u64 reserved2; struct sca_entry cpu[64]; } __attribute__((packed)); -#define KVM_NR_PAGE_SIZES 2 -#define KVM_HPAGE_GFN_SHIFT(x) (((x) - 1) * 8) -#define KVM_HPAGE_SHIFT(x) (PAGE_SHIFT + KVM_HPAGE_GFN_SHIFT(x)) -#define KVM_HPAGE_SIZE(x) (1UL << KVM_HPAGE_SHIFT(x)) -#define KVM_HPAGE_MASK(x) (~(KVM_HPAGE_SIZE(x) - 1)) -#define KVM_PAGES_PER_HPAGE(x) (KVM_HPAGE_SIZE(x) / PAGE_SIZE) - #define CPUSTAT_STOPPED 0x80000000 #define CPUSTAT_WAIT 0x10000000 #define CPUSTAT_ECALL_PEND 0x08000000 @@ -63,23 +74,51 @@ struct sca_block { #define CPUSTAT_ZARCH 0x00000800 #define CPUSTAT_MCDS 0x00000100 #define CPUSTAT_SM 0x00000080 +#define CPUSTAT_IBS 0x00000040 #define CPUSTAT_G 0x00000008 +#define CPUSTAT_GED 0x00000004 #define CPUSTAT_J 0x00000002 #define CPUSTAT_P 0x00000001 struct kvm_s390_sie_block { atomic_t cpuflags; /* 0x0000 */ - __u32 prefix; /* 0x0004 */ - __u8 reserved8[32]; /* 0x0008 */ + __u32 : 1; /* 0x0004 */ + __u32 prefix : 18; + __u32 : 13; + __u8 reserved08[4]; /* 0x0008 */ +#define PROG_IN_SIE (1<<0) + __u32 prog0c; /* 0x000c */ + __u8 reserved10[16]; /* 0x0010 */ +#define PROG_BLOCK_SIE 0x00000001 + atomic_t prog20; /* 0x0020 */ + __u8 reserved24[4]; /* 0x0024 */ __u64 cputm; /* 0x0028 */ __u64 ckc; /* 0x0030 */ __u64 epoch; /* 0x0038 */ __u8 reserved40[4]; /* 0x0040 */ #define LCTL_CR0 0x8000 +#define LCTL_CR6 0x0200 +#define LCTL_CR9 0x0040 +#define LCTL_CR10 0x0020 +#define LCTL_CR11 0x0010 +#define LCTL_CR14 0x0002 __u16 lctl; /* 0x0044 */ __s16 icpua; /* 0x0046 */ +#define ICTL_PINT 0x20000000 +#define ICTL_LPSW 0x00400000 +#define ICTL_STCTL 0x00040000 +#define ICTL_ISKE 0x00004000 +#define ICTL_SSKE 0x00002000 +#define ICTL_RRBE 0x00001000 +#define ICTL_TPROT 0x00000200 __u32 ictl; /* 0x0048 */ __u32 eca; /* 0x004c */ +#define ICPT_INST 0x04 +#define ICPT_PROGI 0x08 +#define ICPT_INSTPROGI 0x0C +#define ICPT_OPEREXC 0x2C +#define ICPT_PARTEXEC 0x38 +#define ICPT_IOINST 0x40 __u8 icptcode; /* 0x0050 */ __u8 reserved51; /* 0x0051 */ __u16 ihcpu; /* 0x0052 */ @@ -89,7 +128,8 @@ struct kvm_s390_sie_block { __u32 scaoh; /* 0x005c */ __u8 reserved60; /* 0x0060 */ __u8 ecb; /* 0x0061 */ - __u8 reserved62[2]; /* 0x0062 */ + __u8 ecb2; /* 0x0062 */ + __u8 reserved63[1]; /* 0x0063 */ __u32 scaol; /* 0x0064 */ __u8 reserved68[4]; /* 0x0068 */ __u32 todpr; /* 0x006c */ @@ -97,16 +137,48 @@ struct kvm_s390_sie_block { psw_t gpsw; /* 0x0090 */ __u64 gg14; /* 0x00a0 */ __u64 gg15; /* 0x00a8 */ - __u8 reservedb0[30]; /* 0x00b0 */ - __u16 iprcc; /* 0x00ce */ - __u8 reservedd0[48]; /* 0x00d0 */ + __u8 reservedb0[20]; /* 0x00b0 */ + __u16 extcpuaddr; /* 0x00c4 */ + __u16 eic; /* 0x00c6 */ + __u32 reservedc8; /* 0x00c8 */ + __u16 pgmilc; /* 0x00cc */ + __u16 iprcc; /* 0x00ce */ + __u32 dxc; /* 0x00d0 */ + __u16 mcn; /* 0x00d4 */ + __u8 perc; /* 0x00d6 */ + __u8 peratmid; /* 0x00d7 */ + __u64 peraddr; /* 0x00d8 */ + __u8 eai; /* 0x00e0 */ + __u8 peraid; /* 0x00e1 */ + __u8 oai; /* 0x00e2 */ + __u8 armid; /* 0x00e3 */ + __u8 reservede4[4]; /* 0x00e4 */ + __u64 tecmc; /* 0x00e8 */ + __u8 reservedf0[16]; /* 0x00f0 */ __u64 gcr[16]; /* 0x0100 */ __u64 gbea; /* 0x0180 */ __u8 reserved188[24]; /* 0x0188 */ __u32 fac; /* 0x01a0 */ - __u8 reserved1a4[92]; /* 0x01a4 */ + __u8 reserved1a4[20]; /* 0x01a4 */ + __u64 cbrlo; /* 0x01b8 */ + __u8 reserved1c0[30]; /* 0x01c0 */ + __u64 pp; /* 0x01de */ + __u8 reserved1e6[2]; /* 0x01e6 */ + __u64 itdba; /* 0x01e8 */ + __u8 reserved1f0[16]; /* 0x01f0 */ } __attribute__((packed)); +struct kvm_s390_itdb { + __u8 data[256]; +} __packed; + +struct sie_page { + struct kvm_s390_sie_block sie_block; + __u8 reserved200[1024]; /* 0x0200 */ + struct kvm_s390_itdb itdb; /* 0x0600 */ + __u8 reserved700[2304]; /* 0x0700 */ +} __packed; + struct kvm_vcpu_stat { u32 exit_userspace; u32 exit_null; @@ -117,6 +189,8 @@ struct kvm_vcpu_stat { u32 exit_instruction; u32 instruction_lctl; u32 instruction_lctlg; + u32 instruction_stctl; + u32 instruction_stctg; u32 exit_program_interruption; u32 exit_instr_and_program; u32 deliver_external_call; @@ -127,17 +201,21 @@ struct kvm_vcpu_stat { u32 deliver_prefix_signal; u32 deliver_restart_signal; u32 deliver_program_int; + u32 deliver_io_int; u32 exit_wait_state; + u32 instruction_pfmf; u32 instruction_stidp; u32 instruction_spx; u32 instruction_stpx; u32 instruction_stap; u32 instruction_storage_key; + u32 instruction_ipte_interlock; u32 instruction_stsch; u32 instruction_chsc; u32 instruction_stsi; u32 instruction_stfl; u32 instruction_tprot; + u32 instruction_essa; u32 instruction_sigp_sense; u32 instruction_sigp_sense_running; u32 instruction_sigp_external_call; @@ -148,43 +226,61 @@ struct kvm_vcpu_stat { u32 instruction_sigp_restart; u32 diagnose_10; u32 diagnose_44; + u32 diagnose_9c; }; -struct kvm_s390_io_info { - __u16 subchannel_id; /* 0x0b8 */ - __u16 subchannel_nr; /* 0x0ba */ - __u32 io_int_parm; /* 0x0bc */ - __u32 io_int_word; /* 0x0c0 */ -}; - -struct kvm_s390_ext_info { - __u32 ext_params; - __u64 ext_params2; -}; - -#define PGM_OPERATION 0x01 -#define PGM_PRIVILEGED_OPERATION 0x02 -#define PGM_EXECUTE 0x03 -#define PGM_PROTECTION 0x04 -#define PGM_ADDRESSING 0x05 -#define PGM_SPECIFICATION 0x06 -#define PGM_DATA 0x07 - -struct kvm_s390_pgm_info { - __u16 code; -}; - -struct kvm_s390_prefix_info { - __u32 address; -}; - -struct kvm_s390_extcall_info { - __u16 code; -}; - -struct kvm_s390_emerg_info { - __u16 code; -}; +#define PGM_OPERATION 0x01 +#define PGM_PRIVILEGED_OP 0x02 +#define PGM_EXECUTE 0x03 +#define PGM_PROTECTION 0x04 +#define PGM_ADDRESSING 0x05 +#define PGM_SPECIFICATION 0x06 +#define PGM_DATA 0x07 +#define PGM_FIXED_POINT_OVERFLOW 0x08 +#define PGM_FIXED_POINT_DIVIDE 0x09 +#define PGM_DECIMAL_OVERFLOW 0x0a +#define PGM_DECIMAL_DIVIDE 0x0b +#define PGM_HFP_EXPONENT_OVERFLOW 0x0c +#define PGM_HFP_EXPONENT_UNDERFLOW 0x0d +#define PGM_HFP_SIGNIFICANCE 0x0e +#define PGM_HFP_DIVIDE 0x0f +#define PGM_SEGMENT_TRANSLATION 0x10 +#define PGM_PAGE_TRANSLATION 0x11 +#define PGM_TRANSLATION_SPEC 0x12 +#define PGM_SPECIAL_OPERATION 0x13 +#define PGM_OPERAND 0x15 +#define PGM_TRACE_TABEL 0x16 +#define PGM_SPACE_SWITCH 0x1c +#define PGM_HFP_SQUARE_ROOT 0x1d +#define PGM_PC_TRANSLATION_SPEC 0x1f +#define PGM_AFX_TRANSLATION 0x20 +#define PGM_ASX_TRANSLATION 0x21 +#define PGM_LX_TRANSLATION 0x22 +#define PGM_EX_TRANSLATION 0x23 +#define PGM_PRIMARY_AUTHORITY 0x24 +#define PGM_SECONDARY_AUTHORITY 0x25 +#define PGM_LFX_TRANSLATION 0x26 +#define PGM_LSX_TRANSLATION 0x27 +#define PGM_ALET_SPECIFICATION 0x28 +#define PGM_ALEN_TRANSLATION 0x29 +#define PGM_ALE_SEQUENCE 0x2a +#define PGM_ASTE_VALIDITY 0x2b +#define PGM_ASTE_SEQUENCE 0x2c +#define PGM_EXTENDED_AUTHORITY 0x2d +#define PGM_LSTE_SEQUENCE 0x2e +#define PGM_ASTE_INSTANCE 0x2f +#define PGM_STACK_FULL 0x30 +#define PGM_STACK_EMPTY 0x31 +#define PGM_STACK_SPECIFICATION 0x32 +#define PGM_STACK_TYPE 0x33 +#define PGM_STACK_OPERATION 0x34 +#define PGM_ASCE_TYPE 0x38 +#define PGM_REGION_FIRST_TRANS 0x39 +#define PGM_REGION_SECOND_TRANS 0x3a +#define PGM_REGION_THIRD_TRANS 0x3b +#define PGM_MONITOR 0x40 +#define PGM_PER 0x80 +#define PGM_CRYPTO_OPERATION 0x119 struct kvm_s390_interrupt_info { struct list_head list; @@ -196,13 +292,13 @@ struct kvm_s390_interrupt_info { struct kvm_s390_emerg_info emerg; struct kvm_s390_extcall_info extcall; struct kvm_s390_prefix_info prefix; + struct kvm_s390_mchk_info mchk; }; }; /* for local_interrupt.action_flags */ #define ACTION_STORE_ON_STOP (1<<0) #define ACTION_STOP_ON_STOP (1<<1) -#define ACTION_RELOADVCPU_ON_STOP (1<<2) struct kvm_s390_local_interrupt { spinlock_t lock; @@ -210,7 +306,7 @@ struct kvm_s390_local_interrupt { atomic_t active; struct kvm_s390_float_interrupt *float_int; int timer_due; /* event indicator for waitqueue below */ - wait_queue_head_t wq; + wait_queue_head_t *wq; atomic_t *cpuflags; unsigned int action_bits; }; @@ -220,38 +316,139 @@ struct kvm_s390_float_interrupt { struct list_head list; atomic_t active; int next_rr_cpu; - unsigned long idle_mask [(64 + sizeof(long) - 1) / sizeof(long)]; - struct kvm_s390_local_interrupt *local_int[64]; + unsigned long idle_mask[BITS_TO_LONGS(KVM_MAX_VCPUS)]; + unsigned int irq_count; +}; + +struct kvm_hw_wp_info_arch { + unsigned long addr; + unsigned long phys_addr; + int len; + char *old_data; }; +struct kvm_hw_bp_info_arch { + unsigned long addr; + int len; +}; + +/* + * Only the upper 16 bits of kvm_guest_debug->control are arch specific. + * Further KVM_GUESTDBG flags which an be used from userspace can be found in + * arch/s390/include/uapi/asm/kvm.h + */ +#define KVM_GUESTDBG_EXIT_PENDING 0x10000000 + +#define guestdbg_enabled(vcpu) \ + (vcpu->guest_debug & KVM_GUESTDBG_ENABLE) +#define guestdbg_sstep_enabled(vcpu) \ + (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP) +#define guestdbg_hw_bp_enabled(vcpu) \ + (vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP) +#define guestdbg_exit_pending(vcpu) (guestdbg_enabled(vcpu) && \ + (vcpu->guest_debug & KVM_GUESTDBG_EXIT_PENDING)) + +struct kvm_guestdbg_info_arch { + unsigned long cr0; + unsigned long cr9; + unsigned long cr10; + unsigned long cr11; + struct kvm_hw_bp_info_arch *hw_bp_info; + struct kvm_hw_wp_info_arch *hw_wp_info; + int nr_hw_bp; + int nr_hw_wp; + unsigned long last_bp; +}; struct kvm_vcpu_arch { struct kvm_s390_sie_block *sie_block; - unsigned long guest_gprs[16]; s390_fp_regs host_fpregs; unsigned int host_acrs[NUM_ACRS]; s390_fp_regs guest_fpregs; - unsigned int guest_acrs[NUM_ACRS]; struct kvm_s390_local_interrupt local_int; struct hrtimer ckc_timer; struct tasklet_struct tasklet; + struct kvm_s390_pgm_info pgm; union { struct cpuid cpu_id; u64 stidp_data; }; struct gmap *gmap; + struct kvm_guestdbg_info_arch guestdbg; +#define KVM_S390_PFAULT_TOKEN_INVALID (-1UL) + unsigned long pfault_token; + unsigned long pfault_select; + unsigned long pfault_compare; }; struct kvm_vm_stat { u32 remote_tlb_flush; }; +struct kvm_arch_memory_slot { +}; + +struct s390_map_info { + struct list_head list; + __u64 guest_addr; + __u64 addr; + struct page *page; +}; + +struct s390_io_adapter { + unsigned int id; + int isc; + bool maskable; + bool masked; + bool swap; + struct rw_semaphore maps_lock; + struct list_head maps; + atomic_t nr_maps; +}; + +#define MAX_S390_IO_ADAPTERS ((MAX_ISC + 1) * 8) +#define MAX_S390_ADAPTER_MAPS 256 + struct kvm_arch{ struct sca_block *sca; debug_info_t *dbf; struct kvm_s390_float_interrupt float_int; + struct kvm_device *flic; struct gmap *gmap; + int css_support; + int use_irqchip; + int use_cmma; + struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS]; + wait_queue_head_t ipte_wq; + spinlock_t start_stop_lock; }; -extern int sie64a(struct kvm_s390_sie_block *, unsigned long *); +#define KVM_HVA_ERR_BAD (-1UL) +#define KVM_HVA_ERR_RO_BAD (-2UL) + +static inline bool kvm_is_error_hva(unsigned long addr) +{ + return IS_ERR_VALUE(addr); +} + +#define ASYNC_PF_PER_VCPU 64 +struct kvm_vcpu; +struct kvm_async_pf; +struct kvm_arch_async_pf { + unsigned long pfault_token; +}; + +bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu); + +void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu, + struct kvm_async_pf *work); + +void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu, + struct kvm_async_pf *work); + +void kvm_arch_async_page_present(struct kvm_vcpu *vcpu, + struct kvm_async_pf *work); + +extern int sie64a(struct kvm_s390_sie_block *, u64 *); +extern char sie_exit; #endif diff --git a/arch/s390/include/asm/kvm_para.h b/arch/s390/include/asm/kvm_para.h index 6964db226f8..e0f842308a6 100644 --- a/arch/s390/include/asm/kvm_para.h +++ b/arch/s390/include/asm/kvm_para.h @@ -1,5 +1,5 @@ /* - * asm-s390/kvm_para.h - definition for paravirtual devices on s390 + * definition for paravirtual devices on s390 * * Copyright IBM Corp. 2008 * @@ -9,12 +9,6 @@ * * Author(s): Christian Borntraeger <borntraeger@de.ibm.com> */ - -#ifndef __S390_KVM_PARA_H -#define __S390_KVM_PARA_H - -#ifdef __KERNEL__ - /* * Hypercalls for KVM on s390. The calling convention is similar to the * s390 ABI, so we use R2-R6 for parameters 1-5. In addition we use R1 @@ -29,6 +23,12 @@ * * This work is licensed under the terms of the GNU GPL, version 2. */ +#ifndef __S390_KVM_PARA_H +#define __S390_KVM_PARA_H + +#include <uapi/asm/kvm_para.h> + + static inline long kvm_hypercall0(unsigned long nr) { @@ -149,6 +149,9 @@ static inline unsigned int kvm_arch_para_features(void) return 0; } -#endif +static inline bool kvm_check_and_clear_guest_paused(void) +{ + return false; +} #endif /* __S390_KVM_PARA_H */ diff --git a/arch/s390/include/asm/kvm_virtio.h b/arch/s390/include/asm/kvm_virtio.h deleted file mode 100644 index 72f614181ef..00000000000 --- a/arch/s390/include/asm/kvm_virtio.h +++ /dev/null @@ -1,64 +0,0 @@ -/* - * kvm_virtio.h - definition for virtio for kvm on s390 - * - * Copyright IBM Corp. 2008 - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License (version 2 only) - * as published by the Free Software Foundation. - * - * Author(s): Christian Borntraeger <borntraeger@de.ibm.com> - */ - -#ifndef __KVM_S390_VIRTIO_H -#define __KVM_S390_VIRTIO_H - -#include <linux/types.h> - -struct kvm_device_desc { - /* The device type: console, network, disk etc. Type 0 terminates. */ - __u8 type; - /* The number of virtqueues (first in config array) */ - __u8 num_vq; - /* - * The number of bytes of feature bits. Multiply by 2: one for host - * features and one for guest acknowledgements. - */ - __u8 feature_len; - /* The number of bytes of the config array after virtqueues. */ - __u8 config_len; - /* A status byte, written by the Guest. */ - __u8 status; - __u8 config[0]; -}; - -/* - * This is how we expect the device configuration field for a virtqueue - * to be laid out in config space. - */ -struct kvm_vqconfig { - /* The token returned with an interrupt. Set by the guest */ - __u64 token; - /* The address of the virtio ring */ - __u64 address; - /* The number of entries in the virtio_ring */ - __u16 num; - -}; - -#define KVM_S390_VIRTIO_NOTIFY 0 -#define KVM_S390_VIRTIO_RESET 1 -#define KVM_S390_VIRTIO_SET_STATUS 2 - -/* The alignment to use between consumer and producer parts of vring. - * This is pagesize for historical reasons. */ -#define KVM_S390_VIRTIO_RING_ALIGN 4096 - - -/* These values are supposed to be in ext_params on an interrupt */ -#define VIRTIO_PARAM_MASK 0xff -#define VIRTIO_PARAM_VRING_INTERRUPT 0x0 -#define VIRTIO_PARAM_CONFIG_CHANGED 0x1 -#define VIRTIO_PARAM_DEV_ADD 0x2 - -#endif diff --git a/arch/s390/include/asm/lowcore.h b/arch/s390/include/asm/lowcore.h index 707f2306725..4349197ab9d 100644 --- a/arch/s390/include/asm/lowcore.h +++ b/arch/s390/include/asm/lowcore.h @@ -1,5 +1,5 @@ /* - * Copyright IBM Corp. 1999,2010 + * Copyright IBM Corp. 1999, 2012 * Author(s): Hartmut Penner <hp@de.ibm.com>, * Martin Schwidefsky <schwidefsky@de.ibm.com>, * Denis Joseph Barrow, @@ -12,14 +12,6 @@ #include <asm/ptrace.h> #include <asm/cpu.h> -void restart_int_handler(void); -void ext_int_handler(void); -void system_call(void); -void pgm_check_handler(void); -void mcck_int_handler(void); -void io_int_handler(void); -void psw_restart_int_handler(void); - #ifdef CONFIG_32BIT #define LC_ORDER 0 @@ -56,7 +48,7 @@ struct _lowcore { psw_t mcck_new_psw; /* 0x0070 */ psw_t io_new_psw; /* 0x0078 */ __u32 ext_params; /* 0x0080 */ - __u16 cpu_addr; /* 0x0084 */ + __u16 ext_cpu_addr; /* 0x0084 */ __u16 ext_int_code; /* 0x0086 */ __u16 svc_ilc; /* 0x0088 */ __u16 svc_code; /* 0x008a */ @@ -64,13 +56,14 @@ struct _lowcore { __u16 pgm_code; /* 0x008e */ __u32 trans_exc_code; /* 0x0090 */ __u16 mon_class_num; /* 0x0094 */ - __u16 per_perc_atmid; /* 0x0096 */ + __u8 per_code; /* 0x0096 */ + __u8 per_atmid; /* 0x0097 */ __u32 per_address; /* 0x0098 */ __u32 monitor_code; /* 0x009c */ __u8 exc_access_id; /* 0x00a0 */ __u8 per_access_id; /* 0x00a1 */ __u8 op_access_id; /* 0x00a2 */ - __u8 ar_access_id; /* 0x00a3 */ + __u8 ar_mode_id; /* 0x00a3 */ __u8 pad_0x00a4[0x00b8-0x00a4]; /* 0x00a4 */ __u16 subchannel_id; /* 0x00b8 */ __u16 subchannel_nr; /* 0x00ba */ @@ -101,7 +94,9 @@ struct _lowcore { __u32 save_area_sync[8]; /* 0x0200 */ __u32 save_area_async[8]; /* 0x0220 */ __u32 save_area_restart[1]; /* 0x0240 */ - __u8 pad_0x0244[0x0248-0x0244]; /* 0x0244 */ + + /* CPU flags. */ + __u32 cpu_flags; /* 0x0244 */ /* Return psws. */ psw_t return_psw; /* 0x0248 */ @@ -117,37 +112,39 @@ struct _lowcore { __u64 steal_timer; /* 0x0288 */ __u64 last_update_timer; /* 0x0290 */ __u64 last_update_clock; /* 0x0298 */ + __u64 int_clock; /* 0x02a0 */ + __u64 mcck_clock; /* 0x02a8 */ + __u64 clock_comparator; /* 0x02b0 */ /* Current process. */ - __u32 current_task; /* 0x02a0 */ - __u32 thread_info; /* 0x02a4 */ - __u32 kernel_stack; /* 0x02a8 */ + __u32 current_task; /* 0x02b8 */ + __u32 thread_info; /* 0x02bc */ + __u32 kernel_stack; /* 0x02c0 */ - /* Interrupt and panic stack. */ - __u32 async_stack; /* 0x02ac */ - __u32 panic_stack; /* 0x02b0 */ + /* Interrupt, panic and restart stack. */ + __u32 async_stack; /* 0x02c4 */ + __u32 panic_stack; /* 0x02c8 */ + __u32 restart_stack; /* 0x02cc */ + + /* Restart function and parameter. */ + __u32 restart_fn; /* 0x02d0 */ + __u32 restart_data; /* 0x02d4 */ + __u32 restart_source; /* 0x02d8 */ /* Address space pointer. */ - __u32 kernel_asce; /* 0x02b4 */ - __u32 user_asce; /* 0x02b8 */ - __u32 current_pid; /* 0x02bc */ + __u32 kernel_asce; /* 0x02dc */ + __u32 user_asce; /* 0x02e0 */ + __u32 current_pid; /* 0x02e4 */ /* SMP info area */ - __u32 cpu_nr; /* 0x02c0 */ - __u32 softirq_pending; /* 0x02c4 */ - __u32 percpu_offset; /* 0x02c8 */ - __u32 ext_call_fast; /* 0x02cc */ - __u64 int_clock; /* 0x02d0 */ - __u64 mcck_clock; /* 0x02d8 */ - __u64 clock_comparator; /* 0x02e0 */ - __u32 machine_flags; /* 0x02e8 */ - __u32 ftrace_func; /* 0x02ec */ - __u8 pad_0x02f8[0x0300-0x02f0]; /* 0x02f0 */ - - /* Interrupt response block */ - __u8 irb[64]; /* 0x0300 */ - - __u8 pad_0x0340[0x0e00-0x0340]; /* 0x0340 */ + __u32 cpu_nr; /* 0x02e8 */ + __u32 softirq_pending; /* 0x02ec */ + __u32 percpu_offset; /* 0x02f0 */ + __u32 machine_flags; /* 0x02f4 */ + __u32 ftrace_func; /* 0x02f8 */ + __u32 spinlock_lockval; /* 0x02fc */ + + __u8 pad_0x0300[0x0e00-0x0300]; /* 0x0300 */ /* * 0xe00 contains the address of the IPL Parameter Information @@ -157,7 +154,9 @@ struct _lowcore { __u32 ipib; /* 0x0e00 */ __u32 ipib_checksum; /* 0x0e04 */ __u32 vmcore_info; /* 0x0e08 */ - __u8 pad_0x0e0c[0x0f00-0x0e0c]; /* 0x0e0c */ + __u8 pad_0x0e0c[0x0e18-0x0e0c]; /* 0x0e0c */ + __u32 os_info; /* 0x0e18 */ + __u8 pad_0x0e1c[0x0f00-0x0e1c]; /* 0x0e1c */ /* Extended facility list */ __u64 stfle_fac_list[32]; /* 0x0f00 */ @@ -189,7 +188,7 @@ struct _lowcore { __u32 ipl_parmblock_ptr; /* 0x0014 */ __u8 pad_0x0018[0x0080-0x0018]; /* 0x0018 */ __u32 ext_params; /* 0x0080 */ - __u16 cpu_addr; /* 0x0084 */ + __u16 ext_cpu_addr; /* 0x0084 */ __u16 ext_int_code; /* 0x0086 */ __u16 svc_ilc; /* 0x0088 */ __u16 svc_code; /* 0x008a */ @@ -197,12 +196,13 @@ struct _lowcore { __u16 pgm_code; /* 0x008e */ __u32 data_exc_code; /* 0x0090 */ __u16 mon_class_num; /* 0x0094 */ - __u16 per_perc_atmid; /* 0x0096 */ + __u8 per_code; /* 0x0096 */ + __u8 per_atmid; /* 0x0097 */ __u64 per_address; /* 0x0098 */ __u8 exc_access_id; /* 0x00a0 */ __u8 per_access_id; /* 0x00a1 */ __u8 op_access_id; /* 0x00a2 */ - __u8 ar_access_id; /* 0x00a3 */ + __u8 ar_mode_id; /* 0x00a3 */ __u8 pad_0x00a4[0x00a8-0x00a4]; /* 0x00a4 */ __u64 trans_exc_code; /* 0x00a8 */ __u64 monitor_code; /* 0x00b0 */ @@ -238,7 +238,9 @@ struct _lowcore { __u64 save_area_sync[8]; /* 0x0200 */ __u64 save_area_async[8]; /* 0x0240 */ __u64 save_area_restart[1]; /* 0x0280 */ - __u8 pad_0x0288[0x0290-0x0288]; /* 0x0288 */ + + /* CPU flags. */ + __u64 cpu_flags; /* 0x0288 */ /* Return psws. */ psw_t return_psw; /* 0x0290 */ @@ -254,42 +256,45 @@ struct _lowcore { __u64 steal_timer; /* 0x02e0 */ __u64 last_update_timer; /* 0x02e8 */ __u64 last_update_clock; /* 0x02f0 */ + __u64 int_clock; /* 0x02f8 */ + __u64 mcck_clock; /* 0x0300 */ + __u64 clock_comparator; /* 0x0308 */ /* Current process. */ - __u64 current_task; /* 0x02f8 */ - __u64 thread_info; /* 0x0300 */ - __u64 kernel_stack; /* 0x0308 */ + __u64 current_task; /* 0x0310 */ + __u64 thread_info; /* 0x0318 */ + __u64 kernel_stack; /* 0x0320 */ + + /* Interrupt, panic and restart stack. */ + __u64 async_stack; /* 0x0328 */ + __u64 panic_stack; /* 0x0330 */ + __u64 restart_stack; /* 0x0338 */ - /* Interrupt and panic stack. */ - __u64 async_stack; /* 0x0310 */ - __u64 panic_stack; /* 0x0318 */ + /* Restart function and parameter. */ + __u64 restart_fn; /* 0x0340 */ + __u64 restart_data; /* 0x0348 */ + __u64 restart_source; /* 0x0350 */ /* Address space pointer. */ - __u64 kernel_asce; /* 0x0320 */ - __u64 user_asce; /* 0x0328 */ - __u64 current_pid; /* 0x0330 */ + __u64 kernel_asce; /* 0x0358 */ + __u64 user_asce; /* 0x0360 */ + __u64 current_pid; /* 0x0368 */ /* SMP info area */ - __u32 cpu_nr; /* 0x0338 */ - __u32 softirq_pending; /* 0x033c */ - __u64 percpu_offset; /* 0x0340 */ - __u64 ext_call_fast; /* 0x0348 */ - __u64 int_clock; /* 0x0350 */ - __u64 mcck_clock; /* 0x0358 */ - __u64 clock_comparator; /* 0x0360 */ - __u64 vdso_per_cpu_data; /* 0x0368 */ - __u64 machine_flags; /* 0x0370 */ - __u64 ftrace_func; /* 0x0378 */ - __u64 gmap; /* 0x0380 */ - __u8 pad_0x0388[0x0400-0x0388]; /* 0x0388 */ - - /* Interrupt response block. */ - __u8 irb[64]; /* 0x0400 */ + __u32 cpu_nr; /* 0x0370 */ + __u32 softirq_pending; /* 0x0374 */ + __u64 percpu_offset; /* 0x0378 */ + __u64 vdso_per_cpu_data; /* 0x0380 */ + __u64 machine_flags; /* 0x0388 */ + __u64 ftrace_func; /* 0x0390 */ + __u64 gmap; /* 0x0398 */ + __u32 spinlock_lockval; /* 0x03a0 */ + __u8 pad_0x03a0[0x0400-0x03a4]; /* 0x03a4 */ /* Per cpu primary space access list */ - __u32 paste[16]; /* 0x0440 */ + __u32 paste[16]; /* 0x0400 */ - __u8 pad_0x0480[0x0e00-0x0480]; /* 0x0480 */ + __u8 pad_0x04c0[0x0e00-0x0440]; /* 0x0440 */ /* * 0xe00 contains the address of the IPL Parameter Information @@ -299,7 +304,9 @@ struct _lowcore { __u64 ipib; /* 0x0e00 */ __u32 ipib_checksum; /* 0x0e08 */ __u64 vmcore_info; /* 0x0e0c */ - __u8 pad_0x0e14[0x0f00-0x0e14]; /* 0x0e14 */ + __u8 pad_0x0e14[0x0e18-0x0e14]; /* 0x0e14 */ + __u64 os_info; /* 0x0e18 */ + __u8 pad_0x0e20[0x0f00-0x0e20]; /* 0x0e20 */ /* Extended facility list */ __u64 stfle_fac_list[32]; /* 0x0f00 */ @@ -323,9 +330,13 @@ struct _lowcore { __u8 pad_0x1338[0x1340-0x1338]; /* 0x1338 */ __u32 access_regs_save_area[16]; /* 0x1340 */ __u64 cregs_save_area[16]; /* 0x1380 */ + __u8 pad_0x1400[0x1800-0x1400]; /* 0x1400 */ + + /* Transaction abort diagnostic block */ + __u8 pgm_tdb[256]; /* 0x1800 */ /* align to the top of the prefix area */ - __u8 pad_0x1400[0x2000-0x1400]; /* 0x1400 */ + __u8 pad_0x1900[0x2000-0x1900]; /* 0x1900 */ } __packed; #endif /* CONFIG_32BIT */ diff --git a/arch/s390/include/asm/mathemu.h b/arch/s390/include/asm/mathemu.h index e8dd1ba8edb..614dfaf47f7 100644 --- a/arch/s390/include/asm/mathemu.h +++ b/arch/s390/include/asm/mathemu.h @@ -1,9 +1,8 @@ /* - * arch/s390/kernel/mathemu.h * IEEE floating point emulation. * * S390 version - * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation + * Copyright IBM Corp. 1999 * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com) */ diff --git a/arch/s390/include/asm/mman.h b/arch/s390/include/asm/mman.h index d49760e6350..9977e08df5b 100644 --- a/arch/s390/include/asm/mman.h +++ b/arch/s390/include/asm/mman.h @@ -1,21 +1,15 @@ /* - * include/asm-s390/mman.h - * * S390 version * * Derived from "include/asm-i386/mman.h" */ - #ifndef __S390_MMAN_H__ #define __S390_MMAN_H__ -#include <asm-generic/mman.h> +#include <uapi/asm/mman.h> -#if defined(__KERNEL__) #if !defined(__ASSEMBLY__) && defined(CONFIG_64BIT) -int s390_mmap_check(unsigned long addr, unsigned long len); -#define arch_mmap_check(addr,len,flags) s390_mmap_check(addr,len) +int s390_mmap_check(unsigned long addr, unsigned long len, unsigned long flags); +#define arch_mmap_check(addr, len, flags) s390_mmap_check(addr, len, flags) #endif -#endif - #endif /* __S390_MMAN_H__ */ diff --git a/arch/s390/include/asm/mmu.h b/arch/s390/include/asm/mmu.h index 4506791adcd..a5e656260a7 100644 --- a/arch/s390/include/asm/mmu.h +++ b/arch/s390/include/asm/mmu.h @@ -1,7 +1,11 @@ #ifndef __MMU_H #define __MMU_H +#include <linux/cpumask.h> +#include <linux/errno.h> + typedef struct { + cpumask_t cpu_attach_mask; atomic_t attach_count; unsigned int flush_mm; spinlock_t list_lock; @@ -10,10 +14,10 @@ typedef struct { unsigned long asce_bits; unsigned long asce_limit; unsigned long vdso_base; - /* Cloned contexts will be created with extended page tables. */ - unsigned int alloc_pgste:1; /* The mmu context has extended page tables. */ unsigned int has_pgste:1; + /* The mmu context uses storage keys. */ + unsigned int use_skey:1; } mm_context_t; #define INIT_MM_CONTEXT(name) \ @@ -21,4 +25,18 @@ typedef struct { .context.pgtable_list = LIST_HEAD_INIT(name.context.pgtable_list), \ .context.gmap_list = LIST_HEAD_INIT(name.context.gmap_list), +static inline int tprot(unsigned long addr) +{ + int rc = -EFAULT; + + asm volatile( + " tprot 0(%1),0\n" + "0: ipm %0\n" + " srl %0,28\n" + "1:\n" + EX_TABLE(0b,1b) + : "+d" (rc) : "a" (addr) : "cc"); + return rc; +} + #endif diff --git a/arch/s390/include/asm/mmu_context.h b/arch/s390/include/asm/mmu_context.h index 5682f160ff8..3815bfea1b2 100644 --- a/arch/s390/include/asm/mmu_context.h +++ b/arch/s390/include/asm/mmu_context.h @@ -1,6 +1,4 @@ /* - * include/asm-s390/mmu_context.h - * * S390 version * * Derived from "include/asm-i386/mmu_context.h" @@ -12,35 +10,20 @@ #include <asm/pgalloc.h> #include <asm/uaccess.h> #include <asm/tlbflush.h> -#include <asm-generic/mm_hooks.h> +#include <asm/ctl_reg.h> static inline int init_new_context(struct task_struct *tsk, struct mm_struct *mm) { + cpumask_clear(&mm->context.cpu_attach_mask); atomic_set(&mm->context.attach_count, 0); mm->context.flush_mm = 0; mm->context.asce_bits = _ASCE_TABLE_LENGTH | _ASCE_USER_BITS; #ifdef CONFIG_64BIT mm->context.asce_bits |= _ASCE_TYPE_REGION3; #endif - if (current->mm && current->mm->context.alloc_pgste) { - /* - * alloc_pgste indicates, that any NEW context will be created - * with extended page tables. The old context is unchanged. The - * page table allocation and the page table operations will - * look at has_pgste to distinguish normal and extended page - * tables. The only way to create extended page tables is to - * set alloc_pgste and then create a new context (e.g. dup_mm). - * The page table allocation is called after init_new_context - * and if has_pgste is set, it will create extended page - * tables. - */ - mm->context.has_pgste = 1; - mm->context.alloc_pgste = 1; - } else { - mm->context.has_pgste = 0; - mm->context.alloc_pgste = 0; - } + mm->context.has_pgste = 0; + mm->context.use_skey = 0; mm->context.asce_limit = STACK_TOP_MAX; crst_table_init((unsigned long *) mm->pgd, pgd_entry_type(mm)); return 0; @@ -48,39 +31,69 @@ static inline int init_new_context(struct task_struct *tsk, #define destroy_context(mm) do { } while (0) -#ifndef __s390x__ -#define LCTL_OPCODE "lctl" -#else -#define LCTL_OPCODE "lctlg" -#endif +static inline void set_user_asce(struct mm_struct *mm) +{ + S390_lowcore.user_asce = mm->context.asce_bits | __pa(mm->pgd); + if (current->thread.mm_segment.ar4) + __ctl_load(S390_lowcore.user_asce, 7, 7); + set_cpu_flag(CIF_ASCE); +} -static inline void update_mm(struct mm_struct *mm, struct task_struct *tsk) +static inline void clear_user_asce(void) { - pgd_t *pgd = mm->pgd; - - S390_lowcore.user_asce = mm->context.asce_bits | __pa(pgd); - if (user_mode != HOME_SPACE_MODE) { - /* Load primary space page table origin. */ - asm volatile(LCTL_OPCODE" 1,1,%0\n" - : : "m" (S390_lowcore.user_asce) ); - } else - /* Load home space page table origin. */ - asm volatile(LCTL_OPCODE" 13,13,%0" - : : "m" (S390_lowcore.user_asce) ); - set_fs(current->thread.mm_segment); + S390_lowcore.user_asce = S390_lowcore.kernel_asce; + + __ctl_load(S390_lowcore.user_asce, 1, 1); + __ctl_load(S390_lowcore.user_asce, 7, 7); +} + +static inline void load_kernel_asce(void) +{ + unsigned long asce; + + __ctl_store(asce, 1, 1); + if (asce != S390_lowcore.kernel_asce) + __ctl_load(S390_lowcore.kernel_asce, 1, 1); + set_cpu_flag(CIF_ASCE); } static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, struct task_struct *tsk) { - cpumask_set_cpu(smp_processor_id(), mm_cpumask(next)); - update_mm(next, tsk); - atomic_dec(&prev->context.attach_count); - WARN_ON(atomic_read(&prev->context.attach_count) < 0); + int cpu = smp_processor_id(); + + if (prev == next) + return; + if (MACHINE_HAS_TLB_LC) + cpumask_set_cpu(cpu, &next->context.cpu_attach_mask); + /* Clear old ASCE by loading the kernel ASCE. */ + __ctl_load(S390_lowcore.kernel_asce, 1, 1); + __ctl_load(S390_lowcore.kernel_asce, 7, 7); atomic_inc(&next->context.attach_count); - /* Check for TLBs not flushed yet */ - if (next->context.flush_mm) - __tlb_flush_mm(next); + atomic_dec(&prev->context.attach_count); + if (MACHINE_HAS_TLB_LC) + cpumask_clear_cpu(cpu, &prev->context.cpu_attach_mask); + S390_lowcore.user_asce = next->context.asce_bits | __pa(next->pgd); +} + +#define finish_arch_post_lock_switch finish_arch_post_lock_switch +static inline void finish_arch_post_lock_switch(void) +{ + struct task_struct *tsk = current; + struct mm_struct *mm = tsk->mm; + + load_kernel_asce(); + if (mm) { + preempt_disable(); + while (atomic_read(&mm->context.attach_count) >> 16) + cpu_relax(); + + cpumask_set_cpu(smp_processor_id(), mm_cpumask(mm)); + if (mm->context.flush_mm) + __tlb_flush_mm(mm); + preempt_enable(); + } + set_fs(current->thread.mm_segment); } #define enter_lazy_tlb(mm,tsk) do { } while (0) @@ -89,7 +102,22 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, static inline void activate_mm(struct mm_struct *prev, struct mm_struct *next) { - switch_mm(prev, next, current); + switch_mm(prev, next, current); + cpumask_set_cpu(smp_processor_id(), mm_cpumask(next)); + set_user_asce(next); +} + +static inline void arch_dup_mmap(struct mm_struct *oldmm, + struct mm_struct *mm) +{ +#ifdef CONFIG_64BIT + if (oldmm->context.asce_limit < mm->context.asce_limit) + crst_table_downgrade(mm, oldmm->context.asce_limit); +#endif +} + +static inline void arch_exit_mmap(struct mm_struct *mm) +{ } #endif /* __S390_MMU_CONTEXT_H */ diff --git a/arch/s390/include/asm/module.h b/arch/s390/include/asm/module.h index 1cc1c5af705..df1f861a848 100644 --- a/arch/s390/include/asm/module.h +++ b/arch/s390/include/asm/module.h @@ -1,5 +1,8 @@ #ifndef _ASM_S390_MODULE_H #define _ASM_S390_MODULE_H + +#include <asm-generic/module.h> + /* * This file contains the s390 architecture specific module code. */ @@ -28,19 +31,4 @@ struct mod_arch_specific struct mod_arch_syminfo *syminfo; }; -#ifdef __s390x__ -#define ElfW(x) Elf64_ ## x -#define ELFW(x) ELF64_ ## x -#else -#define ElfW(x) Elf32_ ## x -#define ELFW(x) ELF32_ ## x -#endif - -#define Elf_Addr ElfW(Addr) -#define Elf_Rela ElfW(Rela) -#define Elf_Shdr ElfW(Shdr) -#define Elf_Sym ElfW(Sym) -#define Elf_Ehdr ElfW(Ehdr) -#define ELF_R_SYM ELFW(R_SYM) -#define ELF_R_TYPE ELFW(R_TYPE) #endif /* _ASM_S390_MODULE_H */ diff --git a/arch/s390/include/asm/monwriter.h b/arch/s390/include/asm/monwriter.h deleted file mode 100644 index f0cbf96c52e..00000000000 --- a/arch/s390/include/asm/monwriter.h +++ /dev/null @@ -1,33 +0,0 @@ -/* - * include/asm-s390/monwriter.h - * - * Copyright (C) IBM Corp. 2006 - * Character device driver for writing z/VM APPLDATA monitor records - * Version 1.0 - * Author(s): Melissa Howland <melissah@us.ibm.com> - * - */ - -#ifndef _ASM_390_MONWRITER_H -#define _ASM_390_MONWRITER_H - -/* mon_function values */ -#define MONWRITE_START_INTERVAL 0x00 /* start interval recording */ -#define MONWRITE_STOP_INTERVAL 0x01 /* stop interval or config recording */ -#define MONWRITE_GEN_EVENT 0x02 /* generate event record */ -#define MONWRITE_START_CONFIG 0x03 /* start configuration recording */ - -/* the header the app uses in its write() data */ -struct monwrite_hdr { - unsigned char mon_function; - unsigned short applid; - unsigned char record_num; - unsigned short version; - unsigned short release; - unsigned short mod_level; - unsigned short datalen; - unsigned char hdrlen; - -} __attribute__((packed)); - -#endif /* _ASM_390_MONWRITER_H */ diff --git a/arch/s390/include/asm/msgbuf.h b/arch/s390/include/asm/msgbuf.h deleted file mode 100644 index 1bbdee92792..00000000000 --- a/arch/s390/include/asm/msgbuf.h +++ /dev/null @@ -1,37 +0,0 @@ -#ifndef _S390_MSGBUF_H -#define _S390_MSGBUF_H - -/* - * The msqid64_ds structure for S/390 architecture. - * Note extra padding because this structure is passed back and forth - * between kernel and user space. - * - * Pad space is left for: - * - 64-bit time_t to solve y2038 problem - * - 2 miscellaneous 32-bit values - */ - -struct msqid64_ds { - struct ipc64_perm msg_perm; - __kernel_time_t msg_stime; /* last msgsnd time */ -#ifndef __s390x__ - unsigned long __unused1; -#endif /* ! __s390x__ */ - __kernel_time_t msg_rtime; /* last msgrcv time */ -#ifndef __s390x__ - unsigned long __unused2; -#endif /* ! __s390x__ */ - __kernel_time_t msg_ctime; /* last change time */ -#ifndef __s390x__ - unsigned long __unused3; -#endif /* ! __s390x__ */ - unsigned long msg_cbytes; /* current number of bytes on queue */ - unsigned long msg_qnum; /* number of messages in queue */ - unsigned long msg_qbytes; /* max number of bytes on queue */ - __kernel_pid_t msg_lspid; /* pid of last msgsnd */ - __kernel_pid_t msg_lrpid; /* last receive pid */ - unsigned long __unused4; - unsigned long __unused5; -}; - -#endif /* _S390_MSGBUF_H */ diff --git a/arch/s390/include/asm/mutex.h b/arch/s390/include/asm/mutex.h index 688271f5f2e..458c1f7fbc1 100644 --- a/arch/s390/include/asm/mutex.h +++ b/arch/s390/include/asm/mutex.h @@ -7,5 +7,3 @@ */ #include <asm-generic/mutex-dec.h> - -#define arch_mutex_cpu_relax() barrier() diff --git a/arch/s390/include/asm/nmi.h b/arch/s390/include/asm/nmi.h index f4b60441adc..35f8ec18561 100644 --- a/arch/s390/include/asm/nmi.h +++ b/arch/s390/include/asm/nmi.h @@ -1,7 +1,7 @@ /* * Machine check handler definitions * - * Copyright IBM Corp. 2000,2009 + * Copyright IBM Corp. 2000, 2009 * Author(s): Ingo Adlung <adlung@de.ibm.com>, * Martin Schwidefsky <schwidefsky@de.ibm.com>, * Cornelia Huck <cornelia.huck@de.ibm.com>, diff --git a/arch/s390/include/asm/os_info.h b/arch/s390/include/asm/os_info.h new file mode 100644 index 00000000000..295f2c4f1c9 --- /dev/null +++ b/arch/s390/include/asm/os_info.h @@ -0,0 +1,49 @@ +/* + * OS info memory interface + * + * Copyright IBM Corp. 2012 + * Author(s): Michael Holzheu <holzheu@linux.vnet.ibm.com> + */ +#ifndef _ASM_S390_OS_INFO_H +#define _ASM_S390_OS_INFO_H + +#define OS_INFO_VERSION_MAJOR 1 +#define OS_INFO_VERSION_MINOR 1 +#define OS_INFO_MAGIC 0x4f53494e464f535aULL /* OSINFOSZ */ + +#define OS_INFO_VMCOREINFO 0 +#define OS_INFO_REIPL_BLOCK 1 + +struct os_info_entry { + u64 addr; + u64 size; + u32 csum; +} __packed; + +struct os_info { + u64 magic; + u32 csum; + u16 version_major; + u16 version_minor; + u64 crashkernel_addr; + u64 crashkernel_size; + struct os_info_entry entry[2]; + u8 reserved[4024]; +} __packed; + +void os_info_init(void); +void os_info_entry_add(int nr, void *ptr, u64 len); +void os_info_crashkernel_add(unsigned long base, unsigned long size); +u32 os_info_csum(struct os_info *os_info); + +#ifdef CONFIG_CRASH_DUMP +void *os_info_old_entry(int nr, unsigned long *size); +int copy_from_oldmem(void *dest, void *src, size_t count); +#else +static inline void *os_info_old_entry(int nr, unsigned long *size) +{ + return NULL; +} +#endif + +#endif /* _ASM_S390_OS_INFO_H */ diff --git a/arch/s390/include/asm/page.h b/arch/s390/include/asm/page.h index f7ec548c2b9..114258eeaac 100644 --- a/arch/s390/include/asm/page.h +++ b/arch/s390/include/asm/page.h @@ -1,8 +1,6 @@ /* - * include/asm-s390/page.h - * * S390 version - * Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation + * Copyright IBM Corp. 1999, 2000 * Author(s): Hartmut Penner (hp@de.ibm.com) */ @@ -32,50 +30,39 @@ #include <asm/setup.h> #ifndef __ASSEMBLY__ +static inline void storage_key_init_range(unsigned long start, unsigned long end) +{ +#if PAGE_DEFAULT_KEY + __storage_key_init_range(start, end); +#endif +} + static inline void clear_page(void *page) { - if (MACHINE_HAS_PFMF) { - asm volatile( - " .insn rre,0xb9af0000,%0,%1" - : : "d" (0x10000), "a" (page) : "memory", "cc"); - } else { - register unsigned long reg1 asm ("1") = 0; - register void *reg2 asm ("2") = page; - register unsigned long reg3 asm ("3") = 4096; - asm volatile( - " mvcl 2,0" - : "+d" (reg2), "+d" (reg3) : "d" (reg1) - : "memory", "cc"); - } + register unsigned long reg1 asm ("1") = 0; + register void *reg2 asm ("2") = page; + register unsigned long reg3 asm ("3") = 4096; + asm volatile( + " mvcl 2,0" + : "+d" (reg2), "+d" (reg3) : "d" (reg1) + : "memory", "cc"); } +/* + * copy_page uses the mvcl instruction with 0xb0 padding byte in order to + * bypass caches when copying a page. Especially when copying huge pages + * this keeps L1 and L2 data caches alive. + */ static inline void copy_page(void *to, void *from) { - if (MACHINE_HAS_MVPG) { - register unsigned long reg0 asm ("0") = 0; - asm volatile( - " mvpg %0,%1" - : : "a" (to), "a" (from), "d" (reg0) - : "memory", "cc"); - } else - asm volatile( - " mvc 0(256,%0),0(%1)\n" - " mvc 256(256,%0),256(%1)\n" - " mvc 512(256,%0),512(%1)\n" - " mvc 768(256,%0),768(%1)\n" - " mvc 1024(256,%0),1024(%1)\n" - " mvc 1280(256,%0),1280(%1)\n" - " mvc 1536(256,%0),1536(%1)\n" - " mvc 1792(256,%0),1792(%1)\n" - " mvc 2048(256,%0),2048(%1)\n" - " mvc 2304(256,%0),2304(%1)\n" - " mvc 2560(256,%0),2560(%1)\n" - " mvc 2816(256,%0),2816(%1)\n" - " mvc 3072(256,%0),3072(%1)\n" - " mvc 3328(256,%0),3328(%1)\n" - " mvc 3584(256,%0),3584(%1)\n" - " mvc 3840(256,%0),3840(%1)\n" - : : "a" (to), "a" (from) : "memory"); + register void *reg2 asm ("2") = to; + register unsigned long reg3 asm ("3") = 0x1000; + register void *reg4 asm ("4") = from; + register unsigned long reg5 asm ("5") = 0xb0001000; + asm volatile( + " mvcl 2,4" + : "+d" (reg2), "+d" (reg3), "+d" (reg4), "+d" (reg5) + : : "memory", "cc"); } #define clear_user_page(page, vaddr, pg) clear_page(page) @@ -146,34 +133,6 @@ static inline int page_reset_referenced(unsigned long addr) #define _PAGE_FP_BIT 0x08 /* HW fetch protection bit */ #define _PAGE_ACC_BITS 0xf0 /* HW access control bits */ -/* - * Test and clear dirty bit in storage key. - * We can't clear the changed bit atomically. This is a potential - * race against modification of the referenced bit. This function - * should therefore only be called if it is not mapped in any - * address space. - */ -#define __HAVE_ARCH_PAGE_TEST_AND_CLEAR_DIRTY -static inline int page_test_and_clear_dirty(unsigned long pfn, int mapped) -{ - unsigned char skey; - - skey = page_get_storage_key(pfn << PAGE_SHIFT); - if (!(skey & _PAGE_CHANGED)) - return 0; - page_set_storage_key(pfn << PAGE_SHIFT, skey & ~_PAGE_CHANGED, mapped); - return 1; -} - -/* - * Test and clear referenced bit in storage key. - */ -#define __HAVE_ARCH_PAGE_TEST_AND_CLEAR_YOUNG -static inline int page_test_and_clear_young(unsigned long pfn) -{ - return page_reset_referenced(pfn << PAGE_SHIFT); -} - struct page; void arch_free_page(struct page *page, int order); void arch_alloc_page(struct page *page, int order); diff --git a/arch/s390/include/asm/param.h b/arch/s390/include/asm/param.h deleted file mode 100644 index c616821bf2a..00000000000 --- a/arch/s390/include/asm/param.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef _ASMS390_PARAM_H -#define _ASMS390_PARAM_H - -#include <asm-generic/param.h> - -#endif /* _ASMS390_PARAM_H */ diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h index 42a145c9ddd..c030900320e 100644 --- a/arch/s390/include/asm/pci.h +++ b/arch/s390/include/asm/pci.h @@ -1,10 +1,192 @@ #ifndef __ASM_S390_PCI_H #define __ASM_S390_PCI_H -/* S/390 systems don't have a PCI bus. This file is just here because some stupid .c code - * includes it even if CONFIG_PCI is not set. - */ +/* must be set before including asm-generic/pci.h */ #define PCI_DMA_BUS_IS_PHYS (0) +/* must be set before including pci_clp.h */ +#define PCI_BAR_COUNT 6 -#endif /* __ASM_S390_PCI_H */ +#include <linux/pci.h> +#include <asm-generic/pci.h> +#include <asm-generic/pci-dma-compat.h> +#include <asm/pci_clp.h> +#include <asm/pci_debug.h> +#define PCIBIOS_MIN_IO 0x1000 +#define PCIBIOS_MIN_MEM 0x10000000 + +#define pcibios_assign_all_busses() (0) + +void __iomem *pci_iomap(struct pci_dev *, int, unsigned long); +void pci_iounmap(struct pci_dev *, void __iomem *); +int pci_domain_nr(struct pci_bus *); +int pci_proc_domain(struct pci_bus *); + +#define ZPCI_BUS_NR 0 /* default bus number */ +#define ZPCI_DEVFN 0 /* default device number */ + +/* PCI Function Controls */ +#define ZPCI_FC_FN_ENABLED 0x80 +#define ZPCI_FC_ERROR 0x40 +#define ZPCI_FC_BLOCKED 0x20 +#define ZPCI_FC_DMA_ENABLED 0x10 + +struct zpci_fmb { + u32 format : 8; + u32 dma_valid : 1; + u32 : 23; + u32 samples; + u64 last_update; + /* hardware counters */ + u64 ld_ops; + u64 st_ops; + u64 stb_ops; + u64 rpcit_ops; + u64 dma_rbytes; + u64 dma_wbytes; + /* software counters */ + atomic64_t allocated_pages; + atomic64_t mapped_pages; + atomic64_t unmapped_pages; +} __packed __aligned(16); + +#define ZPCI_MSI_VEC_BITS 11 +#define ZPCI_MSI_VEC_MAX (1 << ZPCI_MSI_VEC_BITS) +#define ZPCI_MSI_VEC_MASK (ZPCI_MSI_VEC_MAX - 1) + +enum zpci_state { + ZPCI_FN_STATE_RESERVED, + ZPCI_FN_STATE_STANDBY, + ZPCI_FN_STATE_CONFIGURED, + ZPCI_FN_STATE_ONLINE, + NR_ZPCI_FN_STATES, +}; + +struct zpci_bar_struct { + struct resource *res; /* bus resource */ + u32 val; /* bar start & 3 flag bits */ + u16 map_idx; /* index into bar mapping array */ + u8 size; /* order 2 exponent */ +}; + +/* Private data per function */ +struct zpci_dev { + struct pci_dev *pdev; + struct pci_bus *bus; + struct list_head entry; /* list of all zpci_devices, needed for hotplug, etc. */ + + enum zpci_state state; + u32 fid; /* function ID, used by sclp */ + u32 fh; /* function handle, used by insn's */ + u16 vfn; /* virtual function number */ + u16 pchid; /* physical channel ID */ + u8 pfgid; /* function group ID */ + u8 pft; /* pci function type */ + u16 domain; + + u8 pfip[CLP_PFIP_NR_SEGMENTS]; /* pci function internal path */ + u32 uid; /* user defined id */ + u8 util_str[CLP_UTIL_STR_LEN]; /* utility string */ + + /* IRQ stuff */ + u64 msi_addr; /* MSI address */ + struct airq_iv *aibv; /* adapter interrupt bit vector */ + unsigned int aisb; /* number of the summary bit */ + + /* DMA stuff */ + unsigned long *dma_table; + spinlock_t dma_table_lock; + int tlb_refresh; + + spinlock_t iommu_bitmap_lock; + unsigned long *iommu_bitmap; + unsigned long iommu_size; + unsigned long iommu_pages; + unsigned int next_bit; + + char res_name[16]; + struct zpci_bar_struct bars[PCI_BAR_COUNT]; + + u64 start_dma; /* Start of available DMA addresses */ + u64 end_dma; /* End of available DMA addresses */ + u64 dma_mask; /* DMA address space mask */ + + /* Function measurement block */ + struct zpci_fmb *fmb; + u16 fmb_update; /* update interval */ + + enum pci_bus_speed max_bus_speed; + + struct dentry *debugfs_dev; + struct dentry *debugfs_perf; +}; + +static inline bool zdev_enabled(struct zpci_dev *zdev) +{ + return (zdev->fh & (1UL << 31)) ? true : false; +} + +extern const struct attribute_group *zpci_attr_groups[]; + +/* ----------------------------------------------------------------------------- + Prototypes +----------------------------------------------------------------------------- */ +/* Base stuff */ +int zpci_create_device(struct zpci_dev *); +int zpci_enable_device(struct zpci_dev *); +int zpci_disable_device(struct zpci_dev *); +void zpci_stop_device(struct zpci_dev *); +int zpci_register_ioat(struct zpci_dev *, u8, u64, u64, u64); +int zpci_unregister_ioat(struct zpci_dev *, u8); + +/* CLP */ +int clp_scan_pci_devices(void); +int clp_rescan_pci_devices(void); +int clp_rescan_pci_devices_simple(void); +int clp_add_pci_device(u32, u32, int); +int clp_enable_fh(struct zpci_dev *, u8); +int clp_disable_fh(struct zpci_dev *); + +#ifdef CONFIG_PCI +/* Error handling and recovery */ +void zpci_event_error(void *); +void zpci_event_availability(void *); +void zpci_rescan(void); +bool zpci_is_enabled(void); +#else /* CONFIG_PCI */ +static inline void zpci_event_error(void *e) {} +static inline void zpci_event_availability(void *e) {} +static inline void zpci_rescan(void) {} +#endif /* CONFIG_PCI */ + +#ifdef CONFIG_HOTPLUG_PCI_S390 +int zpci_init_slot(struct zpci_dev *); +void zpci_exit_slot(struct zpci_dev *); +#else /* CONFIG_HOTPLUG_PCI_S390 */ +static inline int zpci_init_slot(struct zpci_dev *zdev) +{ + return 0; +} +static inline void zpci_exit_slot(struct zpci_dev *zdev) {} +#endif /* CONFIG_HOTPLUG_PCI_S390 */ + +/* Helpers */ +struct zpci_dev *get_zdev(struct pci_dev *); +struct zpci_dev *get_zdev_by_fid(u32); + +/* DMA */ +int zpci_dma_init(void); +void zpci_dma_exit(void); + +/* FMB */ +int zpci_fmb_enable_device(struct zpci_dev *); +int zpci_fmb_disable_device(struct zpci_dev *); + +/* Debug */ +int zpci_debug_init(void); +void zpci_debug_exit(void); +void zpci_debug_init_device(struct zpci_dev *); +void zpci_debug_exit_device(struct zpci_dev *); +void zpci_debug_info(struct zpci_dev *, struct seq_file *); + +#endif diff --git a/arch/s390/include/asm/pci_clp.h b/arch/s390/include/asm/pci_clp.h new file mode 100644 index 00000000000..dd78f92f1cc --- /dev/null +++ b/arch/s390/include/asm/pci_clp.h @@ -0,0 +1,186 @@ +#ifndef _ASM_S390_PCI_CLP_H +#define _ASM_S390_PCI_CLP_H + +#include <asm/clp.h> + +/* + * Call Logical Processor - Command Codes + */ +#define CLP_LIST_PCI 0x0002 +#define CLP_QUERY_PCI_FN 0x0003 +#define CLP_QUERY_PCI_FNGRP 0x0004 +#define CLP_SET_PCI_FN 0x0005 + +/* PCI function handle list entry */ +struct clp_fh_list_entry { + u16 device_id; + u16 vendor_id; + u32 config_state : 1; + u32 : 31; + u32 fid; /* PCI function id */ + u32 fh; /* PCI function handle */ +} __packed; + +#define CLP_RC_SETPCIFN_FH 0x0101 /* Invalid PCI fn handle */ +#define CLP_RC_SETPCIFN_FHOP 0x0102 /* Fn handle not valid for op */ +#define CLP_RC_SETPCIFN_DMAAS 0x0103 /* Invalid DMA addr space */ +#define CLP_RC_SETPCIFN_RES 0x0104 /* Insufficient resources */ +#define CLP_RC_SETPCIFN_ALRDY 0x0105 /* Fn already in requested state */ +#define CLP_RC_SETPCIFN_ERR 0x0106 /* Fn in permanent error state */ +#define CLP_RC_SETPCIFN_RECPND 0x0107 /* Error recovery pending */ +#define CLP_RC_SETPCIFN_BUSY 0x0108 /* Fn busy */ +#define CLP_RC_LISTPCI_BADRT 0x010a /* Resume token not recognized */ +#define CLP_RC_QUERYPCIFG_PFGID 0x010b /* Unrecognized PFGID */ + +/* request or response block header length */ +#define LIST_PCI_HDR_LEN 32 + +/* Number of function handles fitting in response block */ +#define CLP_FH_LIST_NR_ENTRIES \ + ((CLP_BLK_SIZE - 2 * LIST_PCI_HDR_LEN) \ + / sizeof(struct clp_fh_list_entry)) + +#define CLP_SET_ENABLE_PCI_FN 0 /* Yes, 0 enables it */ +#define CLP_SET_DISABLE_PCI_FN 1 /* Yes, 1 disables it */ + +#define CLP_UTIL_STR_LEN 64 +#define CLP_PFIP_NR_SEGMENTS 4 + +/* List PCI functions request */ +struct clp_req_list_pci { + struct clp_req_hdr hdr; + u32 fmt : 4; /* cmd request block format */ + u32 : 28; + u64 reserved1; + u64 resume_token; + u64 reserved2; +} __packed; + +/* List PCI functions response */ +struct clp_rsp_list_pci { + struct clp_rsp_hdr hdr; + u32 fmt : 4; /* cmd request block format */ + u32 : 28; + u64 reserved1; + u64 resume_token; + u32 reserved2; + u16 max_fn; + u8 reserved3; + u8 entry_size; + struct clp_fh_list_entry fh_list[CLP_FH_LIST_NR_ENTRIES]; +} __packed; + +/* Query PCI function request */ +struct clp_req_query_pci { + struct clp_req_hdr hdr; + u32 fmt : 4; /* cmd request block format */ + u32 : 28; + u64 reserved1; + u32 fh; /* function handle */ + u32 reserved2; + u64 reserved3; +} __packed; + +/* Query PCI function response */ +struct clp_rsp_query_pci { + struct clp_rsp_hdr hdr; + u32 fmt : 4; /* cmd request block format */ + u32 : 28; + u64 : 64; + u16 vfn; /* virtual fn number */ + u16 : 7; + u16 util_str_avail : 1; /* utility string available? */ + u16 pfgid : 8; /* pci function group id */ + u32 fid; /* pci function id */ + u8 bar_size[PCI_BAR_COUNT]; + u16 pchid; + u32 bar[PCI_BAR_COUNT]; + u8 pfip[CLP_PFIP_NR_SEGMENTS]; /* pci function internal path */ + u32 : 24; + u8 pft; /* pci function type */ + u64 sdma; /* start dma as */ + u64 edma; /* end dma as */ + u32 reserved[11]; + u32 uid; /* user defined id */ + u8 util_str[CLP_UTIL_STR_LEN]; /* utility string */ +} __packed; + +/* Query PCI function group request */ +struct clp_req_query_pci_grp { + struct clp_req_hdr hdr; + u32 fmt : 4; /* cmd request block format */ + u32 : 28; + u64 reserved1; + u32 : 24; + u32 pfgid : 8; /* function group id */ + u32 reserved2; + u64 reserved3; +} __packed; + +/* Query PCI function group response */ +struct clp_rsp_query_pci_grp { + struct clp_rsp_hdr hdr; + u32 fmt : 4; /* cmd request block format */ + u32 : 28; + u64 reserved1; + u16 : 4; + u16 noi : 12; /* number of interrupts */ + u8 version; + u8 : 6; + u8 frame : 1; + u8 refresh : 1; /* TLB refresh mode */ + u16 reserved2; + u16 mui; + u64 reserved3; + u64 dasm; /* dma address space mask */ + u64 msia; /* MSI address */ + u64 reserved4; + u64 reserved5; +} __packed; + +/* Set PCI function request */ +struct clp_req_set_pci { + struct clp_req_hdr hdr; + u32 fmt : 4; /* cmd request block format */ + u32 : 28; + u64 reserved1; + u32 fh; /* function handle */ + u16 reserved2; + u8 oc; /* operation controls */ + u8 ndas; /* number of dma spaces */ + u64 reserved3; +} __packed; + +/* Set PCI function response */ +struct clp_rsp_set_pci { + struct clp_rsp_hdr hdr; + u32 fmt : 4; /* cmd request block format */ + u32 : 28; + u64 reserved1; + u32 fh; /* function handle */ + u32 reserved3; + u64 reserved4; +} __packed; + +/* Combined request/response block structures used by clp insn */ +struct clp_req_rsp_list_pci { + struct clp_req_list_pci request; + struct clp_rsp_list_pci response; +} __packed; + +struct clp_req_rsp_set_pci { + struct clp_req_set_pci request; + struct clp_rsp_set_pci response; +} __packed; + +struct clp_req_rsp_query_pci { + struct clp_req_query_pci request; + struct clp_rsp_query_pci response; +} __packed; + +struct clp_req_rsp_query_pci_grp { + struct clp_req_query_pci_grp request; + struct clp_rsp_query_pci_grp response; +} __packed; + +#endif diff --git a/arch/s390/include/asm/pci_debug.h b/arch/s390/include/asm/pci_debug.h new file mode 100644 index 00000000000..ac24b26fc06 --- /dev/null +++ b/arch/s390/include/asm/pci_debug.h @@ -0,0 +1,28 @@ +#ifndef _S390_ASM_PCI_DEBUG_H +#define _S390_ASM_PCI_DEBUG_H + +#include <asm/debug.h> + +extern debug_info_t *pci_debug_msg_id; +extern debug_info_t *pci_debug_err_id; + +#define zpci_dbg(imp, fmt, args...) \ + debug_sprintf_event(pci_debug_msg_id, imp, fmt, ##args) + +#define zpci_err(text...) \ + do { \ + char debug_buffer[16]; \ + snprintf(debug_buffer, 16, text); \ + debug_text_event(pci_debug_err_id, 0, debug_buffer); \ + } while (0) + +static inline void zpci_err_hex(void *addr, int len) +{ + while (len > 0) { + debug_event(pci_debug_err_id, 0, (void *) addr, len); + len -= pci_debug_err_id->buf_size; + addr += pci_debug_err_id->buf_size; + } +} + +#endif diff --git a/arch/s390/include/asm/pci_dma.h b/arch/s390/include/asm/pci_dma.h new file mode 100644 index 00000000000..30b4c179c38 --- /dev/null +++ b/arch/s390/include/asm/pci_dma.h @@ -0,0 +1,196 @@ +#ifndef _ASM_S390_PCI_DMA_H +#define _ASM_S390_PCI_DMA_H + +/* I/O Translation Anchor (IOTA) */ +enum zpci_ioat_dtype { + ZPCI_IOTA_STO = 0, + ZPCI_IOTA_RTTO = 1, + ZPCI_IOTA_RSTO = 2, + ZPCI_IOTA_RFTO = 3, + ZPCI_IOTA_PFAA = 4, + ZPCI_IOTA_IOPFAA = 5, + ZPCI_IOTA_IOPTO = 7 +}; + +#define ZPCI_IOTA_IOT_ENABLED 0x800UL +#define ZPCI_IOTA_DT_ST (ZPCI_IOTA_STO << 2) +#define ZPCI_IOTA_DT_RT (ZPCI_IOTA_RTTO << 2) +#define ZPCI_IOTA_DT_RS (ZPCI_IOTA_RSTO << 2) +#define ZPCI_IOTA_DT_RF (ZPCI_IOTA_RFTO << 2) +#define ZPCI_IOTA_DT_PF (ZPCI_IOTA_PFAA << 2) +#define ZPCI_IOTA_FS_4K 0 +#define ZPCI_IOTA_FS_1M 1 +#define ZPCI_IOTA_FS_2G 2 +#define ZPCI_KEY (PAGE_DEFAULT_KEY << 5) + +#define ZPCI_IOTA_STO_FLAG (ZPCI_IOTA_IOT_ENABLED | ZPCI_KEY | ZPCI_IOTA_DT_ST) +#define ZPCI_IOTA_RTTO_FLAG (ZPCI_IOTA_IOT_ENABLED | ZPCI_KEY | ZPCI_IOTA_DT_RT) +#define ZPCI_IOTA_RSTO_FLAG (ZPCI_IOTA_IOT_ENABLED | ZPCI_KEY | ZPCI_IOTA_DT_RS) +#define ZPCI_IOTA_RFTO_FLAG (ZPCI_IOTA_IOT_ENABLED | ZPCI_KEY | ZPCI_IOTA_DT_RF) +#define ZPCI_IOTA_RFAA_FLAG (ZPCI_IOTA_IOT_ENABLED | ZPCI_KEY | ZPCI_IOTA_DT_PF | ZPCI_IOTA_FS_2G) + +/* I/O Region and segment tables */ +#define ZPCI_INDEX_MASK 0x7ffUL + +#define ZPCI_TABLE_TYPE_MASK 0xc +#define ZPCI_TABLE_TYPE_RFX 0xc +#define ZPCI_TABLE_TYPE_RSX 0x8 +#define ZPCI_TABLE_TYPE_RTX 0x4 +#define ZPCI_TABLE_TYPE_SX 0x0 + +#define ZPCI_TABLE_LEN_RFX 0x3 +#define ZPCI_TABLE_LEN_RSX 0x3 +#define ZPCI_TABLE_LEN_RTX 0x3 + +#define ZPCI_TABLE_OFFSET_MASK 0xc0 +#define ZPCI_TABLE_SIZE 0x4000 +#define ZPCI_TABLE_ALIGN ZPCI_TABLE_SIZE +#define ZPCI_TABLE_ENTRY_SIZE (sizeof(unsigned long)) +#define ZPCI_TABLE_ENTRIES (ZPCI_TABLE_SIZE / ZPCI_TABLE_ENTRY_SIZE) + +#define ZPCI_TABLE_BITS 11 +#define ZPCI_PT_BITS 8 +#define ZPCI_ST_SHIFT (ZPCI_PT_BITS + PAGE_SHIFT) +#define ZPCI_RT_SHIFT (ZPCI_ST_SHIFT + ZPCI_TABLE_BITS) + +#define ZPCI_RTE_FLAG_MASK 0x3fffUL +#define ZPCI_RTE_ADDR_MASK (~ZPCI_RTE_FLAG_MASK) +#define ZPCI_STE_FLAG_MASK 0x7ffUL +#define ZPCI_STE_ADDR_MASK (~ZPCI_STE_FLAG_MASK) + +/* I/O Page tables */ +#define ZPCI_PTE_VALID_MASK 0x400 +#define ZPCI_PTE_INVALID 0x400 +#define ZPCI_PTE_VALID 0x000 +#define ZPCI_PT_SIZE 0x800 +#define ZPCI_PT_ALIGN ZPCI_PT_SIZE +#define ZPCI_PT_ENTRIES (ZPCI_PT_SIZE / ZPCI_TABLE_ENTRY_SIZE) +#define ZPCI_PT_MASK (ZPCI_PT_ENTRIES - 1) + +#define ZPCI_PTE_FLAG_MASK 0xfffUL +#define ZPCI_PTE_ADDR_MASK (~ZPCI_PTE_FLAG_MASK) + +/* Shared bits */ +#define ZPCI_TABLE_VALID 0x00 +#define ZPCI_TABLE_INVALID 0x20 +#define ZPCI_TABLE_PROTECTED 0x200 +#define ZPCI_TABLE_UNPROTECTED 0x000 + +#define ZPCI_TABLE_VALID_MASK 0x20 +#define ZPCI_TABLE_PROT_MASK 0x200 + +static inline unsigned int calc_rtx(dma_addr_t ptr) +{ + return ((unsigned long) ptr >> ZPCI_RT_SHIFT) & ZPCI_INDEX_MASK; +} + +static inline unsigned int calc_sx(dma_addr_t ptr) +{ + return ((unsigned long) ptr >> ZPCI_ST_SHIFT) & ZPCI_INDEX_MASK; +} + +static inline unsigned int calc_px(dma_addr_t ptr) +{ + return ((unsigned long) ptr >> PAGE_SHIFT) & ZPCI_PT_MASK; +} + +static inline void set_pt_pfaa(unsigned long *entry, void *pfaa) +{ + *entry &= ZPCI_PTE_FLAG_MASK; + *entry |= ((unsigned long) pfaa & ZPCI_PTE_ADDR_MASK); +} + +static inline void set_rt_sto(unsigned long *entry, void *sto) +{ + *entry &= ZPCI_RTE_FLAG_MASK; + *entry |= ((unsigned long) sto & ZPCI_RTE_ADDR_MASK); + *entry |= ZPCI_TABLE_TYPE_RTX; +} + +static inline void set_st_pto(unsigned long *entry, void *pto) +{ + *entry &= ZPCI_STE_FLAG_MASK; + *entry |= ((unsigned long) pto & ZPCI_STE_ADDR_MASK); + *entry |= ZPCI_TABLE_TYPE_SX; +} + +static inline void validate_rt_entry(unsigned long *entry) +{ + *entry &= ~ZPCI_TABLE_VALID_MASK; + *entry &= ~ZPCI_TABLE_OFFSET_MASK; + *entry |= ZPCI_TABLE_VALID; + *entry |= ZPCI_TABLE_LEN_RTX; +} + +static inline void validate_st_entry(unsigned long *entry) +{ + *entry &= ~ZPCI_TABLE_VALID_MASK; + *entry |= ZPCI_TABLE_VALID; +} + +static inline void invalidate_table_entry(unsigned long *entry) +{ + *entry &= ~ZPCI_TABLE_VALID_MASK; + *entry |= ZPCI_TABLE_INVALID; +} + +static inline void invalidate_pt_entry(unsigned long *entry) +{ + WARN_ON_ONCE((*entry & ZPCI_PTE_VALID_MASK) == ZPCI_PTE_INVALID); + *entry &= ~ZPCI_PTE_VALID_MASK; + *entry |= ZPCI_PTE_INVALID; +} + +static inline void validate_pt_entry(unsigned long *entry) +{ + WARN_ON_ONCE((*entry & ZPCI_PTE_VALID_MASK) == ZPCI_PTE_VALID); + *entry &= ~ZPCI_PTE_VALID_MASK; + *entry |= ZPCI_PTE_VALID; +} + +static inline void entry_set_protected(unsigned long *entry) +{ + *entry &= ~ZPCI_TABLE_PROT_MASK; + *entry |= ZPCI_TABLE_PROTECTED; +} + +static inline void entry_clr_protected(unsigned long *entry) +{ + *entry &= ~ZPCI_TABLE_PROT_MASK; + *entry |= ZPCI_TABLE_UNPROTECTED; +} + +static inline int reg_entry_isvalid(unsigned long entry) +{ + return (entry & ZPCI_TABLE_VALID_MASK) == ZPCI_TABLE_VALID; +} + +static inline int pt_entry_isvalid(unsigned long entry) +{ + return (entry & ZPCI_PTE_VALID_MASK) == ZPCI_PTE_VALID; +} + +static inline int entry_isprotected(unsigned long entry) +{ + return (entry & ZPCI_TABLE_PROT_MASK) == ZPCI_TABLE_PROTECTED; +} + +static inline unsigned long *get_rt_sto(unsigned long entry) +{ + return ((entry & ZPCI_TABLE_TYPE_MASK) == ZPCI_TABLE_TYPE_RTX) + ? (unsigned long *) (entry & ZPCI_RTE_ADDR_MASK) + : NULL; +} + +static inline unsigned long *get_st_pto(unsigned long entry) +{ + return ((entry & ZPCI_TABLE_TYPE_MASK) == ZPCI_TABLE_TYPE_SX) + ? (unsigned long *) (entry & ZPCI_STE_ADDR_MASK) + : NULL; +} + +/* Prototypes */ +int zpci_dma_init_device(struct zpci_dev *); +void zpci_dma_exit_device(struct zpci_dev *); + +#endif diff --git a/arch/s390/include/asm/pci_insn.h b/arch/s390/include/asm/pci_insn.h new file mode 100644 index 00000000000..649eb62c52b --- /dev/null +++ b/arch/s390/include/asm/pci_insn.h @@ -0,0 +1,86 @@ +#ifndef _ASM_S390_PCI_INSN_H +#define _ASM_S390_PCI_INSN_H + +/* Load/Store status codes */ +#define ZPCI_PCI_ST_FUNC_NOT_ENABLED 4 +#define ZPCI_PCI_ST_FUNC_IN_ERR 8 +#define ZPCI_PCI_ST_BLOCKED 12 +#define ZPCI_PCI_ST_INSUF_RES 16 +#define ZPCI_PCI_ST_INVAL_AS 20 +#define ZPCI_PCI_ST_FUNC_ALREADY_ENABLED 24 +#define ZPCI_PCI_ST_DMA_AS_NOT_ENABLED 28 +#define ZPCI_PCI_ST_2ND_OP_IN_INV_AS 36 +#define ZPCI_PCI_ST_FUNC_NOT_AVAIL 40 +#define ZPCI_PCI_ST_ALREADY_IN_RQ_STATE 44 + +/* Load/Store return codes */ +#define ZPCI_PCI_LS_OK 0 +#define ZPCI_PCI_LS_ERR 1 +#define ZPCI_PCI_LS_BUSY 2 +#define ZPCI_PCI_LS_INVAL_HANDLE 3 + +/* Load/Store address space identifiers */ +#define ZPCI_PCIAS_MEMIO_0 0 +#define ZPCI_PCIAS_MEMIO_1 1 +#define ZPCI_PCIAS_MEMIO_2 2 +#define ZPCI_PCIAS_MEMIO_3 3 +#define ZPCI_PCIAS_MEMIO_4 4 +#define ZPCI_PCIAS_MEMIO_5 5 +#define ZPCI_PCIAS_CFGSPC 15 + +/* Modify PCI Function Controls */ +#define ZPCI_MOD_FC_REG_INT 2 +#define ZPCI_MOD_FC_DEREG_INT 3 +#define ZPCI_MOD_FC_REG_IOAT 4 +#define ZPCI_MOD_FC_DEREG_IOAT 5 +#define ZPCI_MOD_FC_REREG_IOAT 6 +#define ZPCI_MOD_FC_RESET_ERROR 7 +#define ZPCI_MOD_FC_RESET_BLOCK 9 +#define ZPCI_MOD_FC_SET_MEASURE 10 + +/* FIB function controls */ +#define ZPCI_FIB_FC_ENABLED 0x80 +#define ZPCI_FIB_FC_ERROR 0x40 +#define ZPCI_FIB_FC_LS_BLOCKED 0x20 +#define ZPCI_FIB_FC_DMAAS_REG 0x10 + +/* FIB function controls */ +#define ZPCI_FIB_FC_ENABLED 0x80 +#define ZPCI_FIB_FC_ERROR 0x40 +#define ZPCI_FIB_FC_LS_BLOCKED 0x20 +#define ZPCI_FIB_FC_DMAAS_REG 0x10 + +/* Function Information Block */ +struct zpci_fib { + u32 fmt : 8; /* format */ + u32 : 24; + u32 : 32; + u8 fc; /* function controls */ + u64 : 56; + u64 pba; /* PCI base address */ + u64 pal; /* PCI address limit */ + u64 iota; /* I/O Translation Anchor */ + u32 : 1; + u32 isc : 3; /* Interrupt subclass */ + u32 noi : 12; /* Number of interrupts */ + u32 : 2; + u32 aibvo : 6; /* Adapter interrupt bit vector offset */ + u32 sum : 1; /* Adapter int summary bit enabled */ + u32 : 1; + u32 aisbo : 6; /* Adapter int summary bit offset */ + u32 : 32; + u64 aibv; /* Adapter int bit vector address */ + u64 aisb; /* Adapter int summary bit address */ + u64 fmb_addr; /* Function measurement block address and key */ + u32 : 32; + u32 gd; +} __packed __aligned(8); + +int zpci_mod_fc(u64 req, struct zpci_fib *fib); +int zpci_refresh_trans(u64 fn, u64 addr, u64 range); +int zpci_load(u64 *data, u64 req, u64 offset); +int zpci_store(u64 data, u64 req, u64 offset); +int zpci_store_block(const u64 *data, u64 req, u64 offset); +void zpci_set_irq_ctrl(u16 ctl, char *unused, u8 isc); + +#endif diff --git a/arch/s390/include/asm/pci_io.h b/arch/s390/include/asm/pci_io.h new file mode 100644 index 00000000000..d194d544d69 --- /dev/null +++ b/arch/s390/include/asm/pci_io.h @@ -0,0 +1,198 @@ +#ifndef _ASM_S390_PCI_IO_H +#define _ASM_S390_PCI_IO_H + +#ifdef CONFIG_PCI + +#include <linux/kernel.h> +#include <linux/slab.h> +#include <asm/pci_insn.h> + +/* I/O Map */ +#define ZPCI_IOMAP_MAX_ENTRIES 0x7fff +#define ZPCI_IOMAP_ADDR_BASE 0x8000000000000000ULL +#define ZPCI_IOMAP_ADDR_IDX_MASK 0x7fff000000000000ULL +#define ZPCI_IOMAP_ADDR_OFF_MASK 0x0000ffffffffffffULL + +struct zpci_iomap_entry { + u32 fh; + u8 bar; +}; + +extern struct zpci_iomap_entry *zpci_iomap_start; + +#define ZPCI_IDX(addr) \ + (((__force u64) addr & ZPCI_IOMAP_ADDR_IDX_MASK) >> 48) +#define ZPCI_OFFSET(addr) \ + ((__force u64) addr & ZPCI_IOMAP_ADDR_OFF_MASK) + +#define ZPCI_CREATE_REQ(handle, space, len) \ + ((u64) handle << 32 | space << 16 | len) + +#define zpci_read(LENGTH, RETTYPE) \ +static inline RETTYPE zpci_read_##RETTYPE(const volatile void __iomem *addr) \ +{ \ + struct zpci_iomap_entry *entry = &zpci_iomap_start[ZPCI_IDX(addr)]; \ + u64 req = ZPCI_CREATE_REQ(entry->fh, entry->bar, LENGTH); \ + u64 data; \ + int rc; \ + \ + rc = zpci_load(&data, req, ZPCI_OFFSET(addr)); \ + if (rc) \ + data = -1ULL; \ + return (RETTYPE) data; \ +} + +#define zpci_write(LENGTH, VALTYPE) \ +static inline void zpci_write_##VALTYPE(VALTYPE val, \ + const volatile void __iomem *addr) \ +{ \ + struct zpci_iomap_entry *entry = &zpci_iomap_start[ZPCI_IDX(addr)]; \ + u64 req = ZPCI_CREATE_REQ(entry->fh, entry->bar, LENGTH); \ + u64 data = (VALTYPE) val; \ + \ + zpci_store(data, req, ZPCI_OFFSET(addr)); \ +} + +zpci_read(8, u64) +zpci_read(4, u32) +zpci_read(2, u16) +zpci_read(1, u8) +zpci_write(8, u64) +zpci_write(4, u32) +zpci_write(2, u16) +zpci_write(1, u8) + +static inline int zpci_write_single(u64 req, const u64 *data, u64 offset, u8 len) +{ + u64 val; + + switch (len) { + case 1: + val = (u64) *((u8 *) data); + break; + case 2: + val = (u64) *((u16 *) data); + break; + case 4: + val = (u64) *((u32 *) data); + break; + case 8: + val = (u64) *((u64 *) data); + break; + default: + val = 0; /* let FW report error */ + break; + } + return zpci_store(val, req, offset); +} + +static inline int zpci_read_single(u64 req, u64 *dst, u64 offset, u8 len) +{ + u64 data; + int cc; + + cc = zpci_load(&data, req, offset); + if (cc) + goto out; + + switch (len) { + case 1: + *((u8 *) dst) = (u8) data; + break; + case 2: + *((u16 *) dst) = (u16) data; + break; + case 4: + *((u32 *) dst) = (u32) data; + break; + case 8: + *((u64 *) dst) = (u64) data; + break; + } +out: + return cc; +} + +static inline int zpci_write_block(u64 req, const u64 *data, u64 offset) +{ + return zpci_store_block(data, req, offset); +} + +static inline u8 zpci_get_max_write_size(u64 src, u64 dst, int len, int max) +{ + int count = len > max ? max : len, size = 1; + + while (!(src & 0x1) && !(dst & 0x1) && ((size << 1) <= count)) { + dst = dst >> 1; + src = src >> 1; + size = size << 1; + } + return size; +} + +static inline int zpci_memcpy_fromio(void *dst, + const volatile void __iomem *src, + unsigned long n) +{ + struct zpci_iomap_entry *entry = &zpci_iomap_start[ZPCI_IDX(src)]; + u64 req, offset = ZPCI_OFFSET(src); + int size, rc = 0; + + while (n > 0) { + size = zpci_get_max_write_size((u64) src, (u64) dst, n, 8); + req = ZPCI_CREATE_REQ(entry->fh, entry->bar, size); + rc = zpci_read_single(req, dst, offset, size); + if (rc) + break; + offset += size; + dst += size; + n -= size; + } + return rc; +} + +static inline int zpci_memcpy_toio(volatile void __iomem *dst, + const void *src, unsigned long n) +{ + struct zpci_iomap_entry *entry = &zpci_iomap_start[ZPCI_IDX(dst)]; + u64 req, offset = ZPCI_OFFSET(dst); + int size, rc = 0; + + if (!src) + return -EINVAL; + + while (n > 0) { + size = zpci_get_max_write_size((u64) dst, (u64) src, n, 128); + req = ZPCI_CREATE_REQ(entry->fh, entry->bar, size); + + if (size > 8) /* main path */ + rc = zpci_write_block(req, src, offset); + else + rc = zpci_write_single(req, src, offset, size); + if (rc) + break; + offset += size; + src += size; + n -= size; + } + return rc; +} + +static inline int zpci_memset_io(volatile void __iomem *dst, + unsigned char val, size_t count) +{ + u8 *src = kmalloc(count, GFP_KERNEL); + int rc; + + if (src == NULL) + return -ENOMEM; + memset(src, val, count); + + rc = zpci_memcpy_toio(dst, src, count); + kfree(src); + return rc; +} + +#endif /* CONFIG_PCI */ + +#endif /* _ASM_S390_PCI_IO_H */ diff --git a/arch/s390/include/asm/percpu.h b/arch/s390/include/asm/percpu.h index 0fbd1899c7b..fa91e009745 100644 --- a/arch/s390/include/asm/percpu.h +++ b/arch/s390/include/asm/percpu.h @@ -10,17 +10,23 @@ */ #define __my_cpu_offset S390_lowcore.percpu_offset +#ifdef CONFIG_64BIT + /* * For 64 bit module code, the module may be more than 4G above the * per cpu area, use weak definitions to force the compiler to * generate external references. */ -#if defined(CONFIG_SMP) && defined(__s390x__) && defined(MODULE) +#if defined(CONFIG_SMP) && defined(MODULE) #define ARCH_NEEDS_WEAK_PER_CPU #endif -#define arch_this_cpu_to_op(pcp, val, op) \ -do { \ +/* + * We use a compare-and-swap loop since that uses less cpu cycles than + * disabling and enabling interrupts like the generic variant would do. + */ +#define arch_this_cpu_to_op_simple(pcp, val, op) \ +({ \ typedef typeof(pcp) pcp_op_T__; \ pcp_op_T__ old__, new__, prev__; \ pcp_op_T__ *ptr__; \ @@ -30,51 +36,110 @@ do { \ do { \ old__ = prev__; \ new__ = old__ op (val); \ - switch (sizeof(*ptr__)) { \ - case 8: \ - prev__ = cmpxchg64(ptr__, old__, new__); \ - break; \ - default: \ - prev__ = cmpxchg(ptr__, old__, new__); \ - } \ + prev__ = cmpxchg(ptr__, old__, new__); \ } while (prev__ != old__); \ preempt_enable(); \ -} while (0) + new__; \ +}) + +#define this_cpu_add_1(pcp, val) arch_this_cpu_to_op_simple(pcp, val, +) +#define this_cpu_add_2(pcp, val) arch_this_cpu_to_op_simple(pcp, val, +) +#define this_cpu_add_return_1(pcp, val) arch_this_cpu_to_op_simple(pcp, val, +) +#define this_cpu_add_return_2(pcp, val) arch_this_cpu_to_op_simple(pcp, val, +) +#define this_cpu_and_1(pcp, val) arch_this_cpu_to_op_simple(pcp, val, &) +#define this_cpu_and_2(pcp, val) arch_this_cpu_to_op_simple(pcp, val, &) +#define this_cpu_or_1(pcp, val) arch_this_cpu_to_op_simple(pcp, val, |) +#define this_cpu_or_2(pcp, val) arch_this_cpu_to_op_simple(pcp, val, |) + +#ifndef CONFIG_HAVE_MARCH_Z196_FEATURES + +#define this_cpu_add_4(pcp, val) arch_this_cpu_to_op_simple(pcp, val, +) +#define this_cpu_add_8(pcp, val) arch_this_cpu_to_op_simple(pcp, val, +) +#define this_cpu_add_return_4(pcp, val) arch_this_cpu_to_op_simple(pcp, val, +) +#define this_cpu_add_return_8(pcp, val) arch_this_cpu_to_op_simple(pcp, val, +) +#define this_cpu_and_4(pcp, val) arch_this_cpu_to_op_simple(pcp, val, &) +#define this_cpu_and_8(pcp, val) arch_this_cpu_to_op_simple(pcp, val, &) +#define this_cpu_or_4(pcp, val) arch_this_cpu_to_op_simple(pcp, val, |) +#define this_cpu_or_8(pcp, val) arch_this_cpu_to_op_simple(pcp, val, |) + +#else /* CONFIG_HAVE_MARCH_Z196_FEATURES */ + +#define arch_this_cpu_add(pcp, val, op1, op2, szcast) \ +{ \ + typedef typeof(pcp) pcp_op_T__; \ + pcp_op_T__ val__ = (val); \ + pcp_op_T__ old__, *ptr__; \ + preempt_disable(); \ + ptr__ = __this_cpu_ptr(&(pcp)); \ + if (__builtin_constant_p(val__) && \ + ((szcast)val__ > -129) && ((szcast)val__ < 128)) { \ + asm volatile( \ + op2 " %[ptr__],%[val__]\n" \ + : [ptr__] "+Q" (*ptr__) \ + : [val__] "i" ((szcast)val__) \ + : "cc"); \ + } else { \ + asm volatile( \ + op1 " %[old__],%[val__],%[ptr__]\n" \ + : [old__] "=d" (old__), [ptr__] "+Q" (*ptr__) \ + : [val__] "d" (val__) \ + : "cc"); \ + } \ + preempt_enable(); \ +} + +#define this_cpu_add_4(pcp, val) arch_this_cpu_add(pcp, val, "laa", "asi", int) +#define this_cpu_add_8(pcp, val) arch_this_cpu_add(pcp, val, "laag", "agsi", long) + +#define arch_this_cpu_add_return(pcp, val, op) \ +({ \ + typedef typeof(pcp) pcp_op_T__; \ + pcp_op_T__ val__ = (val); \ + pcp_op_T__ old__, *ptr__; \ + preempt_disable(); \ + ptr__ = __this_cpu_ptr(&(pcp)); \ + asm volatile( \ + op " %[old__],%[val__],%[ptr__]\n" \ + : [old__] "=d" (old__), [ptr__] "+Q" (*ptr__) \ + : [val__] "d" (val__) \ + : "cc"); \ + preempt_enable(); \ + old__ + val__; \ +}) -#define this_cpu_add_1(pcp, val) arch_this_cpu_to_op(pcp, val, +) -#define this_cpu_add_2(pcp, val) arch_this_cpu_to_op(pcp, val, +) -#define this_cpu_add_4(pcp, val) arch_this_cpu_to_op(pcp, val, +) -#define this_cpu_add_8(pcp, val) arch_this_cpu_to_op(pcp, val, +) +#define this_cpu_add_return_4(pcp, val) arch_this_cpu_add_return(pcp, val, "laa") +#define this_cpu_add_return_8(pcp, val) arch_this_cpu_add_return(pcp, val, "laag") -#define this_cpu_and_1(pcp, val) arch_this_cpu_to_op(pcp, val, &) -#define this_cpu_and_2(pcp, val) arch_this_cpu_to_op(pcp, val, &) -#define this_cpu_and_4(pcp, val) arch_this_cpu_to_op(pcp, val, &) -#define this_cpu_and_8(pcp, val) arch_this_cpu_to_op(pcp, val, &) +#define arch_this_cpu_to_op(pcp, val, op) \ +{ \ + typedef typeof(pcp) pcp_op_T__; \ + pcp_op_T__ val__ = (val); \ + pcp_op_T__ old__, *ptr__; \ + preempt_disable(); \ + ptr__ = __this_cpu_ptr(&(pcp)); \ + asm volatile( \ + op " %[old__],%[val__],%[ptr__]\n" \ + : [old__] "=d" (old__), [ptr__] "+Q" (*ptr__) \ + : [val__] "d" (val__) \ + : "cc"); \ + preempt_enable(); \ +} -#define this_cpu_or_1(pcp, val) arch_this_cpu_to_op(pcp, val, |) -#define this_cpu_or_2(pcp, val) arch_this_cpu_to_op(pcp, val, |) -#define this_cpu_or_4(pcp, val) arch_this_cpu_to_op(pcp, val, |) -#define this_cpu_or_8(pcp, val) arch_this_cpu_to_op(pcp, val, |) +#define this_cpu_and_4(pcp, val) arch_this_cpu_to_op(pcp, val, "lan") +#define this_cpu_and_8(pcp, val) arch_this_cpu_to_op(pcp, val, "lang") +#define this_cpu_or_4(pcp, val) arch_this_cpu_to_op(pcp, val, "lao") +#define this_cpu_or_8(pcp, val) arch_this_cpu_to_op(pcp, val, "laog") -#define this_cpu_xor_1(pcp, val) arch_this_cpu_to_op(pcp, val, ^) -#define this_cpu_xor_2(pcp, val) arch_this_cpu_to_op(pcp, val, ^) -#define this_cpu_xor_4(pcp, val) arch_this_cpu_to_op(pcp, val, ^) -#define this_cpu_xor_8(pcp, val) arch_this_cpu_to_op(pcp, val, ^) +#endif /* CONFIG_HAVE_MARCH_Z196_FEATURES */ -#define arch_this_cpu_cmpxchg(pcp, oval, nval) \ +#define arch_this_cpu_cmpxchg(pcp, oval, nval) \ ({ \ typedef typeof(pcp) pcp_op_T__; \ pcp_op_T__ ret__; \ pcp_op_T__ *ptr__; \ preempt_disable(); \ ptr__ = __this_cpu_ptr(&(pcp)); \ - switch (sizeof(*ptr__)) { \ - case 8: \ - ret__ = cmpxchg64(ptr__, oval, nval); \ - break; \ - default: \ - ret__ = cmpxchg(ptr__, oval, nval); \ - } \ + ret__ = cmpxchg(ptr__, oval, nval); \ preempt_enable(); \ ret__; \ }) @@ -84,6 +149,42 @@ do { \ #define this_cpu_cmpxchg_4(pcp, oval, nval) arch_this_cpu_cmpxchg(pcp, oval, nval) #define this_cpu_cmpxchg_8(pcp, oval, nval) arch_this_cpu_cmpxchg(pcp, oval, nval) +#define arch_this_cpu_xchg(pcp, nval) \ +({ \ + typeof(pcp) *ptr__; \ + typeof(pcp) ret__; \ + preempt_disable(); \ + ptr__ = __this_cpu_ptr(&(pcp)); \ + ret__ = xchg(ptr__, nval); \ + preempt_enable(); \ + ret__; \ +}) + +#define this_cpu_xchg_1(pcp, nval) arch_this_cpu_xchg(pcp, nval) +#define this_cpu_xchg_2(pcp, nval) arch_this_cpu_xchg(pcp, nval) +#define this_cpu_xchg_4(pcp, nval) arch_this_cpu_xchg(pcp, nval) +#define this_cpu_xchg_8(pcp, nval) arch_this_cpu_xchg(pcp, nval) + +#define arch_this_cpu_cmpxchg_double(pcp1, pcp2, o1, o2, n1, n2) \ +({ \ + typeof(pcp1) o1__ = (o1), n1__ = (n1); \ + typeof(pcp2) o2__ = (o2), n2__ = (n2); \ + typeof(pcp1) *p1__; \ + typeof(pcp2) *p2__; \ + int ret__; \ + preempt_disable(); \ + p1__ = __this_cpu_ptr(&(pcp1)); \ + p2__ = __this_cpu_ptr(&(pcp2)); \ + ret__ = __cmpxchg_double(p1__, p2__, o1__, o2__, n1__, n2__); \ + preempt_enable(); \ + ret__; \ +}) + +#define this_cpu_cmpxchg_double_4 arch_this_cpu_cmpxchg_double +#define this_cpu_cmpxchg_double_8 arch_this_cpu_cmpxchg_double + +#endif /* CONFIG_64BIT */ + #include <asm-generic/percpu.h> #endif /* __ARCH_S390_PERCPU__ */ diff --git a/arch/s390/include/asm/perf_event.h b/arch/s390/include/asm/perf_event.h index a75f168d271..159a8ec6da9 100644 --- a/arch/s390/include/asm/perf_event.h +++ b/arch/s390/include/asm/perf_event.h @@ -1,9 +1,96 @@ /* * Performance event support - s390 specific definitions. * - * Copyright 2009 Martin Schwidefsky, IBM Corporation. + * Copyright IBM Corp. 2009, 2013 + * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com> + * Hendrik Brueckner <brueckner@linux.vnet.ibm.com> */ -/* Empty, just to avoid compiling error */ +#ifndef _ASM_S390_PERF_EVENT_H +#define _ASM_S390_PERF_EVENT_H -#define PERF_EVENT_INDEX_OFFSET 0 +#ifdef CONFIG_64BIT + +#include <linux/perf_event.h> +#include <linux/device.h> +#include <asm/cpu_mf.h> + +/* Per-CPU flags for PMU states */ +#define PMU_F_RESERVED 0x1000 +#define PMU_F_ENABLED 0x2000 +#define PMU_F_IN_USE 0x4000 +#define PMU_F_ERR_IBE 0x0100 +#define PMU_F_ERR_LSDA 0x0200 +#define PMU_F_ERR_MASK (PMU_F_ERR_IBE|PMU_F_ERR_LSDA) + +/* Perf defintions for PMU event attributes in sysfs */ +extern __init const struct attribute_group **cpumf_cf_event_group(void); +extern ssize_t cpumf_events_sysfs_show(struct device *dev, + struct device_attribute *attr, + char *page); +#define EVENT_VAR(_cat, _name) event_attr_##_cat##_##_name +#define EVENT_PTR(_cat, _name) (&EVENT_VAR(_cat, _name).attr.attr) + +#define CPUMF_EVENT_ATTR(cat, name, id) \ + PMU_EVENT_ATTR(name, EVENT_VAR(cat, name), id, cpumf_events_sysfs_show) +#define CPUMF_EVENT_PTR(cat, name) EVENT_PTR(cat, name) + + +/* Perf callbacks */ +struct pt_regs; +extern unsigned long perf_instruction_pointer(struct pt_regs *regs); +extern unsigned long perf_misc_flags(struct pt_regs *regs); +#define perf_misc_flags(regs) perf_misc_flags(regs) + +/* Perf pt_regs extension for sample-data-entry indicators */ +struct perf_sf_sde_regs { + unsigned char in_guest:1; /* guest sample */ + unsigned long reserved:63; /* reserved */ +}; + +/* Perf PMU definitions for the counter facility */ +#define PERF_CPUM_CF_MAX_CTR 256 + +/* Perf PMU definitions for the sampling facility */ +#define PERF_CPUM_SF_MAX_CTR 2 +#define PERF_EVENT_CPUM_SF 0xB0000UL /* Event: Basic-sampling */ +#define PERF_EVENT_CPUM_SF_DIAG 0xBD000UL /* Event: Combined-sampling */ +#define PERF_CPUM_SF_BASIC_MODE 0x0001 /* Basic-sampling flag */ +#define PERF_CPUM_SF_DIAG_MODE 0x0002 /* Diagnostic-sampling flag */ +#define PERF_CPUM_SF_MODE_MASK (PERF_CPUM_SF_BASIC_MODE| \ + PERF_CPUM_SF_DIAG_MODE) +#define PERF_CPUM_SF_FULL_BLOCKS 0x0004 /* Process full SDBs only */ + +#define REG_NONE 0 +#define REG_OVERFLOW 1 +#define OVERFLOW_REG(hwc) ((hwc)->extra_reg.config) +#define SFB_ALLOC_REG(hwc) ((hwc)->extra_reg.alloc) +#define RAWSAMPLE_REG(hwc) ((hwc)->config) +#define TEAR_REG(hwc) ((hwc)->last_tag) +#define SAMPL_RATE(hwc) ((hwc)->event_base) +#define SAMPL_FLAGS(hwc) ((hwc)->config_base) +#define SAMPL_DIAG_MODE(hwc) (SAMPL_FLAGS(hwc) & PERF_CPUM_SF_DIAG_MODE) +#define SDB_FULL_BLOCKS(hwc) (SAMPL_FLAGS(hwc) & PERF_CPUM_SF_FULL_BLOCKS) + +/* Structure for sampling data entries to be passed as perf raw sample data + * to user space. Note that raw sample data must be aligned and, thus, might + * be padded with zeros. + */ +struct sf_raw_sample { +#define SF_RAW_SAMPLE_BASIC PERF_CPUM_SF_BASIC_MODE +#define SF_RAW_SAMPLE_DIAG PERF_CPUM_SF_DIAG_MODE + u64 format; + u32 size; /* Size of sf_raw_sample */ + u16 bsdes; /* Basic-sampling data entry size */ + u16 dsdes; /* Diagnostic-sampling data entry size */ + struct hws_basic_entry basic; /* Basic-sampling data entry */ + struct hws_diag_entry diag; /* Diagnostic-sampling data entry */ + u8 padding[]; /* Padding to next multiple of 8 */ +} __packed; + +/* Perf hardware reserve and release functions */ +int perf_reserve_sampling(void); +void perf_release_sampling(void); + +#endif /* CONFIG_64BIT */ +#endif /* _ASM_S390_PERF_EVENT_H */ diff --git a/arch/s390/include/asm/pgalloc.h b/arch/s390/include/asm/pgalloc.h index 8eef9b5b3cf..9e18a61d3df 100644 --- a/arch/s390/include/asm/pgalloc.h +++ b/arch/s390/include/asm/pgalloc.h @@ -1,8 +1,6 @@ /* - * include/asm-s390/pgalloc.h - * * S390 version - * Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation + * Copyright IBM Corp. 1999, 2000 * Author(s): Hartmut Penner (hp@de.ibm.com) * Martin Schwidefsky (schwidefsky@de.ibm.com) * @@ -22,10 +20,12 @@ void crst_table_free(struct mm_struct *, unsigned long *); unsigned long *page_table_alloc(struct mm_struct *, unsigned long); void page_table_free(struct mm_struct *, unsigned long *); -#ifdef CONFIG_HAVE_RCU_TABLE_FREE void page_table_free_rcu(struct mmu_gather *, unsigned long *); -void __tlb_remove_table(void *_table); -#endif + +void page_table_reset_pgste(struct mm_struct *, unsigned long, unsigned long, + bool init_skey); +int set_guest_storage_key(struct mm_struct *mm, unsigned long addr, + unsigned long key, bool nq); static inline void clear_table(unsigned long *s, unsigned long val, size_t n) { @@ -51,7 +51,7 @@ static inline void crst_table_init(unsigned long *crst, unsigned long entry) clear_table(crst, entry, sizeof(unsigned long)*2048); } -#ifndef __s390x__ +#ifndef CONFIG_64BIT static inline unsigned long pgd_entry_type(struct mm_struct *mm) { @@ -67,7 +67,7 @@ static inline unsigned long pgd_entry_type(struct mm_struct *mm) #define pgd_populate(mm, pgd, pud) BUG() #define pud_populate(mm, pud, pmd) BUG() -#else /* __s390x__ */ +#else /* CONFIG_64BIT */ static inline unsigned long pgd_entry_type(struct mm_struct *mm) { @@ -93,11 +93,22 @@ static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long address) static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long vmaddr) { unsigned long *table = crst_table_alloc(mm); - if (table) - crst_table_init(table, _SEGMENT_ENTRY_EMPTY); + + if (!table) + return NULL; + crst_table_init(table, _SEGMENT_ENTRY_EMPTY); + if (!pgtable_pmd_page_ctor(virt_to_page(table))) { + crst_table_free(mm, table); + return NULL; + } return (pmd_t *) table; } -#define pmd_free(mm, pmd) crst_table_free(mm, (unsigned long *) pmd) + +static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) +{ + pgtable_pmd_page_dtor(virt_to_page(pmd)); + crst_table_free(mm, (unsigned long *) pmd); +} static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pud_t *pud) { @@ -109,7 +120,7 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd) pud_val(*pud) = _REGION3_ENTRY | __pa(pmd); } -#endif /* __s390x__ */ +#endif /* CONFIG_64BIT */ static inline pgd_t *pgd_alloc(struct mm_struct *mm) { diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index 011358c1b18..fcba5e03839 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -1,8 +1,6 @@ /* - * include/asm-s390/pgtable.h - * * S390 version - * Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation + * Copyright IBM Corp. 1999, 2000 * Author(s): Hartmut Penner (hp@de.ibm.com) * Ulrich Weigand (weigand@de.ibm.com) * Martin Schwidefsky (schwidefsky@de.ibm.com) @@ -31,19 +29,20 @@ #ifndef __ASSEMBLY__ #include <linux/sched.h> #include <linux/mm_types.h> +#include <linux/page-flags.h> #include <asm/bug.h> #include <asm/page.h> extern pgd_t swapper_pg_dir[] __attribute__ ((aligned (4096))); extern void paging_init(void); extern void vmem_map_init(void); -extern void fault_init(void); /* * The S390 doesn't have any external MMU info: the kernel page * tables contain all the necessary information. */ #define update_mmu_cache(vma, address, ptep) do { } while (0) +#define update_mmu_cache_pmd(vma, address, ptep) do { } while (0) /* * ZERO_PAGE is a global shared page that is always zero; used @@ -56,17 +55,9 @@ extern unsigned long zero_page_mask; #define ZERO_PAGE(vaddr) \ (virt_to_page((void *)(empty_zero_page + \ (((unsigned long)(vaddr)) &zero_page_mask)))) +#define __HAVE_COLOR_ZERO_PAGE -#define is_zero_pfn is_zero_pfn -static inline int is_zero_pfn(unsigned long pfn) -{ - extern unsigned long zero_pfn; - unsigned long offset_from_zero_pfn = pfn - zero_pfn; - return offset_from_zero_pfn <= (zero_page_mask >> PAGE_SHIFT); -} - -#define my_zero_pfn(addr) page_to_pfn(ZERO_PAGE(addr)) - +/* TODO: s390 cannot support io_remap_pfn_range... */ #endif /* !__ASSEMBLY__ */ /* @@ -74,15 +65,15 @@ static inline int is_zero_pfn(unsigned long pfn) * table can map * PGDIR_SHIFT determines what a third-level page table entry can map */ -#ifndef __s390x__ +#ifndef CONFIG_64BIT # define PMD_SHIFT 20 # define PUD_SHIFT 20 # define PGDIR_SHIFT 20 -#else /* __s390x__ */ +#else /* CONFIG_64BIT */ # define PMD_SHIFT 20 # define PUD_SHIFT 31 # define PGDIR_SHIFT 42 -#endif /* __s390x__ */ +#endif /* CONFIG_64BIT */ #define PMD_SIZE (1UL << PMD_SHIFT) #define PMD_MASK (~(PMD_SIZE-1)) @@ -98,13 +89,13 @@ static inline int is_zero_pfn(unsigned long pfn) * that leads to 1024 pte per pgd */ #define PTRS_PER_PTE 256 -#ifndef __s390x__ +#ifndef CONFIG_64BIT #define PTRS_PER_PMD 1 #define PTRS_PER_PUD 1 -#else /* __s390x__ */ +#else /* CONFIG_64BIT */ #define PTRS_PER_PMD 2048 #define PTRS_PER_PUD 2048 -#endif /* __s390x__ */ +#endif /* CONFIG_64BIT */ #define PTRS_PER_PGD 2048 #define FIRST_USER_ADDRESS 0 @@ -120,13 +111,12 @@ static inline int is_zero_pfn(unsigned long pfn) #ifndef __ASSEMBLY__ /* - * The vmalloc area will always be on the topmost area of the kernel - * mapping. We reserve 96MB (31bit) / 128GB (64bit) for vmalloc, - * which should be enough for any sane case. - * By putting vmalloc at the top, we maximise the gap between physical - * memory and vmalloc to catch misplaced memory accesses. As a side - * effect, this also makes sure that 64 bit module code cannot be used - * as system call address. + * The vmalloc and module area will always be on the topmost area of the kernel + * mapping. We reserve 96MB (31bit) / 128GB (64bit) for vmalloc and modules. + * On 64 bit kernels we have a 2GB area at the top of the vmalloc area where + * modules will reside. That makes sure that inter module branches always + * happen without trampolines and in addition the placement within a 2GB frame + * is branch prediction unit friendly. */ extern unsigned long VMALLOC_START; extern unsigned long VMALLOC_END; @@ -134,6 +124,14 @@ extern struct page *vmemmap; #define VMEM_MAX_PHYS ((unsigned long) vmemmap) +#ifdef CONFIG_64BIT +extern unsigned long MODULES_VADDR; +extern unsigned long MODULES_END; +#define MODULES_VADDR MODULES_VADDR +#define MODULES_END MODULES_END +#define MODULES_LEN (1UL << 31) +#endif + /* * A 31 bit pagetable entry of S390 has following format: * | PFRA | | OS | @@ -219,64 +217,61 @@ extern struct page *vmemmap; /* Hardware bits in the page table entry */ #define _PAGE_CO 0x100 /* HW Change-bit override */ -#define _PAGE_RO 0x200 /* HW read-only bit */ +#define _PAGE_PROTECT 0x200 /* HW read-only bit */ #define _PAGE_INVALID 0x400 /* HW invalid bit */ +#define _PAGE_LARGE 0x800 /* Bit to mark a large pte */ /* Software bits in the page table entry */ -#define _PAGE_SWT 0x001 /* SW pte type bit t */ -#define _PAGE_SWX 0x002 /* SW pte type bit x */ -#define _PAGE_SWC 0x004 /* SW pte changed bit (for KVM) */ -#define _PAGE_SWR 0x008 /* SW pte referenced bit (for KVM) */ -#define _PAGE_SPECIAL 0x010 /* SW associated with special page */ +#define _PAGE_PRESENT 0x001 /* SW pte present bit */ +#define _PAGE_TYPE 0x002 /* SW pte type bit */ +#define _PAGE_YOUNG 0x004 /* SW pte young bit */ +#define _PAGE_DIRTY 0x008 /* SW pte dirty bit */ +#define _PAGE_READ 0x010 /* SW pte read bit */ +#define _PAGE_WRITE 0x020 /* SW pte write bit */ +#define _PAGE_SPECIAL 0x040 /* SW associated with special page */ +#define _PAGE_UNUSED 0x080 /* SW bit for pgste usage state */ #define __HAVE_ARCH_PTE_SPECIAL /* Set of bits not changed in pte_modify */ -#define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_SPECIAL | _PAGE_SWC | _PAGE_SWR) - -/* Six different types of pages. */ -#define _PAGE_TYPE_EMPTY 0x400 -#define _PAGE_TYPE_NONE 0x401 -#define _PAGE_TYPE_SWAP 0x403 -#define _PAGE_TYPE_FILE 0x601 /* bit 0x002 is used for offset !! */ -#define _PAGE_TYPE_RO 0x200 -#define _PAGE_TYPE_RW 0x000 - -/* - * Only four types for huge pages, using the invalid bit and protection bit - * of a segment table entry. - */ -#define _HPAGE_TYPE_EMPTY 0x020 /* _SEGMENT_ENTRY_INV */ -#define _HPAGE_TYPE_NONE 0x220 -#define _HPAGE_TYPE_RO 0x200 /* _SEGMENT_ENTRY_RO */ -#define _HPAGE_TYPE_RW 0x000 +#define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_SPECIAL | _PAGE_CO | \ + _PAGE_DIRTY | _PAGE_YOUNG) /* - * PTE type bits are rather complicated. handle_pte_fault uses pte_present, - * pte_none and pte_file to find out the pte type WITHOUT holding the page - * table lock. ptep_clear_flush on the other hand uses ptep_clear_flush to - * invalidate a given pte. ipte sets the hw invalid bit and clears all tlbs - * for the page. The page table entry is set to _PAGE_TYPE_EMPTY afterwards. - * This change is done while holding the lock, but the intermediate step - * of a previously valid pte with the hw invalid bit set can be observed by - * handle_pte_fault. That makes it necessary that all valid pte types with - * the hw invalid bit set must be distinguishable from the four pte types - * empty, none, swap and file. + * handle_pte_fault uses pte_present, pte_none and pte_file to find out the + * pte type WITHOUT holding the page table lock. The _PAGE_PRESENT bit + * is used to distinguish present from not-present ptes. It is changed only + * with the page table lock held. * - * irxt ipte irxt - * _PAGE_TYPE_EMPTY 1000 -> 1000 - * _PAGE_TYPE_NONE 1001 -> 1001 - * _PAGE_TYPE_SWAP 1011 -> 1011 - * _PAGE_TYPE_FILE 11?1 -> 11?1 - * _PAGE_TYPE_RO 0100 -> 1100 - * _PAGE_TYPE_RW 0000 -> 1000 + * The following table gives the different possible bit combinations for + * the pte hardware and software bits in the last 12 bits of a pte: * - * pte_none is true for bits combinations 1000, 1010, 1100, 1110 - * pte_present is true for bits combinations 0000, 0010, 0100, 0110, 1001 - * pte_file is true for bits combinations 1101, 1111 - * swap pte is 1011 and 0001, 0011, 0101, 0111 are invalid. + * 842100000000 + * 000084210000 + * 000000008421 + * .IR...wrdytp + * empty .10...000000 + * swap .10...xxxx10 + * file .11...xxxxx0 + * prot-none, clean, old .11...000001 + * prot-none, clean, young .11...000101 + * prot-none, dirty, old .10...001001 + * prot-none, dirty, young .10...001101 + * read-only, clean, old .11...010001 + * read-only, clean, young .01...010101 + * read-only, dirty, old .11...011001 + * read-only, dirty, young .01...011101 + * read-write, clean, old .11...110001 + * read-write, clean, young .01...110101 + * read-write, dirty, old .10...111001 + * read-write, dirty, young .00...111101 + * + * pte_present is true for the bit pattern .xx...xxxxx1, (pte & 0x001) == 0x001 + * pte_none is true for the bit pattern .10...xxxx00, (pte & 0x603) == 0x400 + * pte_file is true for the bit pattern .11...xxxxx0, (pte & 0x601) == 0x600 + * pte_swap is true for the bit pattern .10...xxxx10, (pte & 0x603) == 0x402 */ -#ifndef __s390x__ +#ifndef CONFIG_64BIT /* Bits in the segment table address-space-control-element */ #define _ASCE_SPACE_SWITCH 0x80000000UL /* space switch event */ @@ -286,29 +281,38 @@ extern struct page *vmemmap; #define _ASCE_TABLE_LENGTH 0x7f /* 128 x 64 entries = 8k */ /* Bits in the segment table entry */ +#define _SEGMENT_ENTRY_BITS 0x7fffffffUL /* Valid segment table bits */ #define _SEGMENT_ENTRY_ORIGIN 0x7fffffc0UL /* page table origin */ -#define _SEGMENT_ENTRY_RO 0x200 /* page protection bit */ -#define _SEGMENT_ENTRY_INV 0x20 /* invalid segment table entry */ +#define _SEGMENT_ENTRY_PROTECT 0x200 /* page protection bit */ +#define _SEGMENT_ENTRY_INVALID 0x20 /* invalid segment table entry */ #define _SEGMENT_ENTRY_COMMON 0x10 /* common segment bit */ #define _SEGMENT_ENTRY_PTL 0x0f /* page table length */ +#define _SEGMENT_ENTRY_NONE _SEGMENT_ENTRY_PROTECT #define _SEGMENT_ENTRY (_SEGMENT_ENTRY_PTL) -#define _SEGMENT_ENTRY_EMPTY (_SEGMENT_ENTRY_INV) - -/* Page status table bits for virtualization */ -#define RCP_ACC_BITS 0xf0000000UL -#define RCP_FP_BIT 0x08000000UL -#define RCP_PCL_BIT 0x00800000UL -#define RCP_HR_BIT 0x00400000UL -#define RCP_HC_BIT 0x00200000UL -#define RCP_GR_BIT 0x00040000UL -#define RCP_GC_BIT 0x00020000UL +#define _SEGMENT_ENTRY_EMPTY (_SEGMENT_ENTRY_INVALID) -/* User dirty / referenced bit for KVM's migration feature */ -#define KVM_UR_BIT 0x00008000UL -#define KVM_UC_BIT 0x00004000UL +/* + * Segment table entry encoding (I = invalid, R = read-only bit): + * ..R...I..... + * prot-none ..1...1..... + * read-only ..1...0..... + * read-write ..0...0..... + * empty ..0...1..... + */ -#else /* __s390x__ */ +/* Page status table bits for virtualization */ +#define PGSTE_ACC_BITS 0xf0000000UL +#define PGSTE_FP_BIT 0x08000000UL +#define PGSTE_PCL_BIT 0x00800000UL +#define PGSTE_HR_BIT 0x00400000UL +#define PGSTE_HC_BIT 0x00200000UL +#define PGSTE_GR_BIT 0x00040000UL +#define PGSTE_GC_BIT 0x00020000UL +#define PGSTE_UC_BIT 0x00008000UL /* user dirty (migration) */ +#define PGSTE_IN_BIT 0x00004000UL /* IPTE notify bit */ + +#else /* CONFIG_64BIT */ /* Bits in the segment/region table address-space-control-element */ #define _ASCE_ORIGIN ~0xfffUL/* segment table origin */ @@ -325,7 +329,8 @@ extern struct page *vmemmap; /* Bits in the region table entry */ #define _REGION_ENTRY_ORIGIN ~0xfffUL/* region/segment table origin */ -#define _REGION_ENTRY_INV 0x20 /* invalid region table entry */ +#define _REGION_ENTRY_PROTECT 0x200 /* region protection bit */ +#define _REGION_ENTRY_INVALID 0x20 /* invalid region table entry */ #define _REGION_ENTRY_TYPE_MASK 0x0c /* region/segment table type mask */ #define _REGION_ENTRY_TYPE_R1 0x0c /* region first table type */ #define _REGION_ENTRY_TYPE_R2 0x08 /* region second table type */ @@ -333,37 +338,70 @@ extern struct page *vmemmap; #define _REGION_ENTRY_LENGTH 0x03 /* region third length */ #define _REGION1_ENTRY (_REGION_ENTRY_TYPE_R1 | _REGION_ENTRY_LENGTH) -#define _REGION1_ENTRY_EMPTY (_REGION_ENTRY_TYPE_R1 | _REGION_ENTRY_INV) +#define _REGION1_ENTRY_EMPTY (_REGION_ENTRY_TYPE_R1 | _REGION_ENTRY_INVALID) #define _REGION2_ENTRY (_REGION_ENTRY_TYPE_R2 | _REGION_ENTRY_LENGTH) -#define _REGION2_ENTRY_EMPTY (_REGION_ENTRY_TYPE_R2 | _REGION_ENTRY_INV) +#define _REGION2_ENTRY_EMPTY (_REGION_ENTRY_TYPE_R2 | _REGION_ENTRY_INVALID) #define _REGION3_ENTRY (_REGION_ENTRY_TYPE_R3 | _REGION_ENTRY_LENGTH) -#define _REGION3_ENTRY_EMPTY (_REGION_ENTRY_TYPE_R3 | _REGION_ENTRY_INV) +#define _REGION3_ENTRY_EMPTY (_REGION_ENTRY_TYPE_R3 | _REGION_ENTRY_INVALID) + +#define _REGION3_ENTRY_LARGE 0x400 /* RTTE-format control, large page */ +#define _REGION3_ENTRY_RO 0x200 /* page protection bit */ +#define _REGION3_ENTRY_CO 0x100 /* change-recording override */ /* Bits in the segment table entry */ +#define _SEGMENT_ENTRY_BITS 0xfffffffffffffe33UL +#define _SEGMENT_ENTRY_BITS_LARGE 0xfffffffffff1ff33UL +#define _SEGMENT_ENTRY_ORIGIN_LARGE ~0xfffffUL /* large page address */ #define _SEGMENT_ENTRY_ORIGIN ~0x7ffUL/* segment table origin */ -#define _SEGMENT_ENTRY_RO 0x200 /* page protection bit */ -#define _SEGMENT_ENTRY_INV 0x20 /* invalid segment table entry */ +#define _SEGMENT_ENTRY_PROTECT 0x200 /* page protection bit */ +#define _SEGMENT_ENTRY_INVALID 0x20 /* invalid segment table entry */ #define _SEGMENT_ENTRY (0) -#define _SEGMENT_ENTRY_EMPTY (_SEGMENT_ENTRY_INV) +#define _SEGMENT_ENTRY_EMPTY (_SEGMENT_ENTRY_INVALID) #define _SEGMENT_ENTRY_LARGE 0x400 /* STE-format control, large page */ #define _SEGMENT_ENTRY_CO 0x100 /* change-recording override */ +#define _SEGMENT_ENTRY_SPLIT 0x001 /* THP splitting bit */ +#define _SEGMENT_ENTRY_YOUNG 0x002 /* SW segment young bit */ +#define _SEGMENT_ENTRY_NONE _SEGMENT_ENTRY_YOUNG -/* Page status table bits for virtualization */ -#define RCP_ACC_BITS 0xf000000000000000UL -#define RCP_FP_BIT 0x0800000000000000UL -#define RCP_PCL_BIT 0x0080000000000000UL -#define RCP_HR_BIT 0x0040000000000000UL -#define RCP_HC_BIT 0x0020000000000000UL -#define RCP_GR_BIT 0x0004000000000000UL -#define RCP_GC_BIT 0x0002000000000000UL +/* + * Segment table entry encoding (R = read-only, I = invalid, y = young bit): + * ..R...I...y. + * prot-none, old ..0...1...1. + * prot-none, young ..1...1...1. + * read-only, old ..1...1...0. + * read-only, young ..1...0...1. + * read-write, old ..0...1...0. + * read-write, young ..0...0...1. + * The segment table origin is used to distinguish empty (origin==0) from + * read-write, old segment table entries (origin!=0) + */ -/* User dirty / referenced bit for KVM's migration feature */ -#define KVM_UR_BIT 0x0000800000000000UL -#define KVM_UC_BIT 0x0000400000000000UL +#define _SEGMENT_ENTRY_SPLIT_BIT 0 /* THP splitting bit number */ -#endif /* __s390x__ */ +/* Set of bits not changed in pmd_modify */ +#define _SEGMENT_CHG_MASK (_SEGMENT_ENTRY_ORIGIN | _SEGMENT_ENTRY_LARGE \ + | _SEGMENT_ENTRY_SPLIT | _SEGMENT_ENTRY_CO) + +/* Page status table bits for virtualization */ +#define PGSTE_ACC_BITS 0xf000000000000000UL +#define PGSTE_FP_BIT 0x0800000000000000UL +#define PGSTE_PCL_BIT 0x0080000000000000UL +#define PGSTE_HR_BIT 0x0040000000000000UL +#define PGSTE_HC_BIT 0x0020000000000000UL +#define PGSTE_GR_BIT 0x0004000000000000UL +#define PGSTE_GC_BIT 0x0002000000000000UL +#define PGSTE_UC_BIT 0x0000800000000000UL /* user dirty (migration) */ +#define PGSTE_IN_BIT 0x0000400000000000UL /* IPTE notify bit */ + +#endif /* CONFIG_64BIT */ + +/* Guest Page State used for virtualization */ +#define _PGSTE_GPS_ZERO 0x0000000080000000UL +#define _PGSTE_GPS_USAGE_MASK 0x0000000003000000UL +#define _PGSTE_GPS_USAGE_STABLE 0x0000000000000000UL +#define _PGSTE_GPS_USAGE_UNUSED 0x0000000001000000UL /* * A user page table pointer has the space-switch-event bit, the @@ -376,12 +414,18 @@ extern struct page *vmemmap; /* * Page protection definitions. */ -#define PAGE_NONE __pgprot(_PAGE_TYPE_NONE) -#define PAGE_RO __pgprot(_PAGE_TYPE_RO) -#define PAGE_RW __pgprot(_PAGE_TYPE_RW) - -#define PAGE_KERNEL PAGE_RW -#define PAGE_COPY PAGE_RO +#define PAGE_NONE __pgprot(_PAGE_PRESENT | _PAGE_INVALID) +#define PAGE_READ __pgprot(_PAGE_PRESENT | _PAGE_READ | \ + _PAGE_INVALID | _PAGE_PROTECT) +#define PAGE_WRITE __pgprot(_PAGE_PRESENT | _PAGE_READ | _PAGE_WRITE | \ + _PAGE_INVALID | _PAGE_PROTECT) + +#define PAGE_SHARED __pgprot(_PAGE_PRESENT | _PAGE_READ | _PAGE_WRITE | \ + _PAGE_YOUNG | _PAGE_DIRTY) +#define PAGE_KERNEL __pgprot(_PAGE_PRESENT | _PAGE_READ | _PAGE_WRITE | \ + _PAGE_YOUNG | _PAGE_DIRTY) +#define PAGE_KERNEL_RO __pgprot(_PAGE_PRESENT | _PAGE_READ | _PAGE_YOUNG | \ + _PAGE_PROTECT) /* * On s390 the page table entry has an invalid bit and a read-only bit. @@ -390,28 +434,31 @@ extern struct page *vmemmap; */ /*xwr*/ #define __P000 PAGE_NONE -#define __P001 PAGE_RO -#define __P010 PAGE_RO -#define __P011 PAGE_RO -#define __P100 PAGE_RO -#define __P101 PAGE_RO -#define __P110 PAGE_RO -#define __P111 PAGE_RO +#define __P001 PAGE_READ +#define __P010 PAGE_READ +#define __P011 PAGE_READ +#define __P100 PAGE_READ +#define __P101 PAGE_READ +#define __P110 PAGE_READ +#define __P111 PAGE_READ #define __S000 PAGE_NONE -#define __S001 PAGE_RO -#define __S010 PAGE_RW -#define __S011 PAGE_RW -#define __S100 PAGE_RO -#define __S101 PAGE_RO -#define __S110 PAGE_RW -#define __S111 PAGE_RW +#define __S001 PAGE_READ +#define __S010 PAGE_WRITE +#define __S011 PAGE_WRITE +#define __S100 PAGE_READ +#define __S101 PAGE_READ +#define __S110 PAGE_WRITE +#define __S111 PAGE_WRITE -static inline int mm_exclusive(struct mm_struct *mm) -{ - return likely(mm == current->active_mm && - atomic_read(&mm->context.attach_count) <= 1); -} +/* + * Segment entry (large page) protection definitions. + */ +#define SEGMENT_NONE __pgprot(_SEGMENT_ENTRY_INVALID | \ + _SEGMENT_ENTRY_NONE) +#define SEGMENT_READ __pgprot(_SEGMENT_ENTRY_INVALID | \ + _SEGMENT_ENTRY_PROTECT) +#define SEGMENT_WRITE __pgprot(_SEGMENT_ENTRY_INVALID) static inline int mm_has_pgste(struct mm_struct *mm) { @@ -421,10 +468,20 @@ static inline int mm_has_pgste(struct mm_struct *mm) #endif return 0; } + +static inline int mm_use_skey(struct mm_struct *mm) +{ +#ifdef CONFIG_PGSTE + if (mm->context.use_skey) + return 1; +#endif + return 0; +} + /* * pgd/pmd/pte query functions */ -#ifndef __s390x__ +#ifndef CONFIG_64BIT static inline int pgd_present(pgd_t pgd) { return 1; } static inline int pgd_none(pgd_t pgd) { return 0; } @@ -432,9 +489,10 @@ static inline int pgd_bad(pgd_t pgd) { return 0; } static inline int pud_present(pud_t pud) { return 1; } static inline int pud_none(pud_t pud) { return 0; } +static inline int pud_large(pud_t pud) { return 0; } static inline int pud_bad(pud_t pud) { return 0; } -#else /* __s390x__ */ +#else /* CONFIG_64BIT */ static inline int pgd_present(pgd_t pgd) { @@ -447,7 +505,7 @@ static inline int pgd_none(pgd_t pgd) { if ((pgd_val(pgd) & _REGION_ENTRY_TYPE_MASK) < _REGION_ENTRY_TYPE_R2) return 0; - return (pgd_val(pgd) & _REGION_ENTRY_INV) != 0UL; + return (pgd_val(pgd) & _REGION_ENTRY_INVALID) != 0UL; } static inline int pgd_bad(pgd_t pgd) @@ -458,7 +516,7 @@ static inline int pgd_bad(pgd_t pgd) * invalid for either table entry. */ unsigned long mask = - ~_SEGMENT_ENTRY_ORIGIN & ~_REGION_ENTRY_INV & + ~_SEGMENT_ENTRY_ORIGIN & ~_REGION_ENTRY_INVALID & ~_REGION_ENTRY_TYPE_MASK & ~_REGION_ENTRY_LENGTH; return (pgd_val(pgd) & mask) != 0; } @@ -474,7 +532,14 @@ static inline int pud_none(pud_t pud) { if ((pud_val(pud) & _REGION_ENTRY_TYPE_MASK) < _REGION_ENTRY_TYPE_R3) return 0; - return (pud_val(pud) & _REGION_ENTRY_INV) != 0UL; + return (pud_val(pud) & _REGION_ENTRY_INVALID) != 0UL; +} + +static inline int pud_large(pud_t pud) +{ + if ((pud_val(pud) & _REGION_ENTRY_TYPE_MASK) != _REGION_ENTRY_TYPE_R3) + return 0; + return !!(pud_val(pud) & _REGION3_ENTRY_LARGE); } static inline int pud_bad(pud_t pud) @@ -485,46 +550,105 @@ static inline int pud_bad(pud_t pud) * invalid for either table entry. */ unsigned long mask = - ~_SEGMENT_ENTRY_ORIGIN & ~_REGION_ENTRY_INV & + ~_SEGMENT_ENTRY_ORIGIN & ~_REGION_ENTRY_INVALID & ~_REGION_ENTRY_TYPE_MASK & ~_REGION_ENTRY_LENGTH; return (pud_val(pud) & mask) != 0; } -#endif /* __s390x__ */ +#endif /* CONFIG_64BIT */ static inline int pmd_present(pmd_t pmd) { - return (pmd_val(pmd) & _SEGMENT_ENTRY_ORIGIN) != 0UL; + return pmd_val(pmd) != _SEGMENT_ENTRY_INVALID; } static inline int pmd_none(pmd_t pmd) { - return (pmd_val(pmd) & _SEGMENT_ENTRY_INV) != 0UL; + return pmd_val(pmd) == _SEGMENT_ENTRY_INVALID; +} + +static inline int pmd_large(pmd_t pmd) +{ +#ifdef CONFIG_64BIT + return (pmd_val(pmd) & _SEGMENT_ENTRY_LARGE) != 0; +#else + return 0; +#endif +} + +static inline int pmd_prot_none(pmd_t pmd) +{ + return (pmd_val(pmd) & _SEGMENT_ENTRY_INVALID) && + (pmd_val(pmd) & _SEGMENT_ENTRY_NONE); } static inline int pmd_bad(pmd_t pmd) { - unsigned long mask = ~_SEGMENT_ENTRY_ORIGIN & ~_SEGMENT_ENTRY_INV; - return (pmd_val(pmd) & mask) != _SEGMENT_ENTRY; +#ifdef CONFIG_64BIT + if (pmd_large(pmd)) + return (pmd_val(pmd) & ~_SEGMENT_ENTRY_BITS_LARGE) != 0; +#endif + return (pmd_val(pmd) & ~_SEGMENT_ENTRY_BITS) != 0; } -static inline int pte_none(pte_t pte) +#define __HAVE_ARCH_PMDP_SPLITTING_FLUSH +extern void pmdp_splitting_flush(struct vm_area_struct *vma, + unsigned long addr, pmd_t *pmdp); + +#define __HAVE_ARCH_PMDP_SET_ACCESS_FLAGS +extern int pmdp_set_access_flags(struct vm_area_struct *vma, + unsigned long address, pmd_t *pmdp, + pmd_t entry, int dirty); + +#define __HAVE_ARCH_PMDP_CLEAR_YOUNG_FLUSH +extern int pmdp_clear_flush_young(struct vm_area_struct *vma, + unsigned long address, pmd_t *pmdp); + +#define __HAVE_ARCH_PMD_WRITE +static inline int pmd_write(pmd_t pmd) +{ + if (pmd_prot_none(pmd)) + return 0; + return (pmd_val(pmd) & _SEGMENT_ENTRY_PROTECT) == 0; +} + +static inline int pmd_young(pmd_t pmd) { - return (pte_val(pte) & _PAGE_INVALID) && !(pte_val(pte) & _PAGE_SWT); + int young = 0; +#ifdef CONFIG_64BIT + if (pmd_prot_none(pmd)) + young = (pmd_val(pmd) & _SEGMENT_ENTRY_PROTECT) != 0; + else + young = (pmd_val(pmd) & _SEGMENT_ENTRY_YOUNG) != 0; +#endif + return young; } static inline int pte_present(pte_t pte) { - unsigned long mask = _PAGE_RO | _PAGE_INVALID | _PAGE_SWT | _PAGE_SWX; - return (pte_val(pte) & mask) == _PAGE_TYPE_NONE || - (!(pte_val(pte) & _PAGE_INVALID) && - !(pte_val(pte) & _PAGE_SWT)); + /* Bit pattern: (pte & 0x001) == 0x001 */ + return (pte_val(pte) & _PAGE_PRESENT) != 0; +} + +static inline int pte_none(pte_t pte) +{ + /* Bit pattern: pte == 0x400 */ + return pte_val(pte) == _PAGE_INVALID; +} + +static inline int pte_swap(pte_t pte) +{ + /* Bit pattern: (pte & 0x603) == 0x402 */ + return (pte_val(pte) & (_PAGE_INVALID | _PAGE_PROTECT | + _PAGE_TYPE | _PAGE_PRESENT)) + == (_PAGE_INVALID | _PAGE_TYPE); } static inline int pte_file(pte_t pte) { - unsigned long mask = _PAGE_RO | _PAGE_INVALID | _PAGE_SWT; - return (pte_val(pte) & mask) == _PAGE_TYPE_FILE; + /* Bit pattern: (pte & 0x601) == 0x600 */ + return (pte_val(pte) & (_PAGE_INVALID | _PAGE_PROTECT | _PAGE_PRESENT)) + == (_PAGE_INVALID | _PAGE_PROTECT); } static inline int pte_special(pte_t pte) @@ -548,12 +672,12 @@ static inline pgste_t pgste_get_lock(pte_t *ptep) asm( " lg %0,%2\n" "0: lgr %1,%0\n" - " nihh %0,0xff7f\n" /* clear RCP_PCL_BIT in old */ - " oihh %1,0x0080\n" /* set RCP_PCL_BIT in new */ + " nihh %0,0xff7f\n" /* clear PCL bit in old */ + " oihh %1,0x0080\n" /* set PCL bit in new */ " csg %0,%1,%2\n" " jl 0b\n" : "=&d" (old), "=&d" (new), "=Q" (ptep[PTRS_PER_PTE]) - : "Q" (ptep[PTRS_PER_PTE]) : "cc"); + : "Q" (ptep[PTRS_PER_PTE]) : "cc", "memory"); #endif return __pgste(new); } @@ -562,132 +686,177 @@ static inline void pgste_set_unlock(pte_t *ptep, pgste_t pgste) { #ifdef CONFIG_PGSTE asm( - " nihh %1,0xff7f\n" /* clear RCP_PCL_BIT */ + " nihh %1,0xff7f\n" /* clear PCL bit */ " stg %1,%0\n" : "=Q" (ptep[PTRS_PER_PTE]) - : "d" (pgste_val(pgste)), "Q" (ptep[PTRS_PER_PTE]) : "cc"); + : "d" (pgste_val(pgste)), "Q" (ptep[PTRS_PER_PTE]) + : "cc", "memory"); preempt_enable(); #endif } -static inline pgste_t pgste_update_all(pte_t *ptep, pgste_t pgste) +static inline pgste_t pgste_get(pte_t *ptep) { + unsigned long pgste = 0; #ifdef CONFIG_PGSTE - unsigned long address, bits; - unsigned char skey; - - if (!pte_present(*ptep)) - return pgste; - address = pte_val(*ptep) & PAGE_MASK; - skey = page_get_storage_key(address); - bits = skey & (_PAGE_CHANGED | _PAGE_REFERENCED); - /* Clear page changed & referenced bit in the storage key */ - if (bits & _PAGE_CHANGED) - page_set_storage_key(address, skey ^ bits, 1); - else if (bits) - page_reset_referenced(address); - /* Transfer page changed & referenced bit to guest bits in pgste */ - pgste_val(pgste) |= bits << 48; /* RCP_GR_BIT & RCP_GC_BIT */ - /* Get host changed & referenced bits from pgste */ - bits |= (pgste_val(pgste) & (RCP_HR_BIT | RCP_HC_BIT)) >> 52; - /* Clear host bits in pgste. */ - pgste_val(pgste) &= ~(RCP_HR_BIT | RCP_HC_BIT); - pgste_val(pgste) &= ~(RCP_ACC_BITS | RCP_FP_BIT); - /* Copy page access key and fetch protection bit to pgste */ - pgste_val(pgste) |= - (unsigned long) (skey & (_PAGE_ACC_BITS | _PAGE_FP_BIT)) << 56; - /* Transfer changed and referenced to kvm user bits */ - pgste_val(pgste) |= bits << 45; /* KVM_UR_BIT & KVM_UC_BIT */ - /* Transfer changed & referenced to pte sofware bits */ - pte_val(*ptep) |= bits << 1; /* _PAGE_SWR & _PAGE_SWC */ + pgste = *(unsigned long *)(ptep + PTRS_PER_PTE); #endif - return pgste; + return __pgste(pgste); +} +static inline void pgste_set(pte_t *ptep, pgste_t pgste) +{ +#ifdef CONFIG_PGSTE + *(pgste_t *)(ptep + PTRS_PER_PTE) = pgste; +#endif } -static inline pgste_t pgste_update_young(pte_t *ptep, pgste_t pgste) +static inline pgste_t pgste_update_all(pte_t *ptep, pgste_t pgste, + struct mm_struct *mm) { #ifdef CONFIG_PGSTE - int young; + unsigned long address, bits, skey; - if (!pte_present(*ptep)) + if (!mm_use_skey(mm) || pte_val(*ptep) & _PAGE_INVALID) return pgste; - young = page_reset_referenced(pte_val(*ptep) & PAGE_MASK); - /* Transfer page referenced bit to pte software bit (host view) */ - if (young || (pgste_val(pgste) & RCP_HR_BIT)) - pte_val(*ptep) |= _PAGE_SWR; - /* Clear host referenced bit in pgste. */ - pgste_val(pgste) &= ~RCP_HR_BIT; - /* Transfer page referenced bit to guest bit in pgste */ - pgste_val(pgste) |= (unsigned long) young << 50; /* set RCP_GR_BIT */ + address = pte_val(*ptep) & PAGE_MASK; + skey = (unsigned long) page_get_storage_key(address); + bits = skey & (_PAGE_CHANGED | _PAGE_REFERENCED); + /* Transfer page changed & referenced bit to guest bits in pgste */ + pgste_val(pgste) |= bits << 48; /* GR bit & GC bit */ + /* Copy page access key and fetch protection bit to pgste */ + pgste_val(pgste) &= ~(PGSTE_ACC_BITS | PGSTE_FP_BIT); + pgste_val(pgste) |= (skey & (_PAGE_ACC_BITS | _PAGE_FP_BIT)) << 56; #endif return pgste; } -static inline void pgste_set_pte(pte_t *ptep, pgste_t pgste, pte_t entry) +static inline void pgste_set_key(pte_t *ptep, pgste_t pgste, pte_t entry, + struct mm_struct *mm) { #ifdef CONFIG_PGSTE unsigned long address; - unsigned long okey, nkey; + unsigned long nkey; - if (!pte_present(entry)) + if (!mm_use_skey(mm) || pte_val(entry) & _PAGE_INVALID) return; + VM_BUG_ON(!(pte_val(*ptep) & _PAGE_INVALID)); address = pte_val(entry) & PAGE_MASK; - okey = nkey = page_get_storage_key(address); - nkey &= ~(_PAGE_ACC_BITS | _PAGE_FP_BIT); - /* Set page access key and fetch protection bit from pgste */ - nkey |= (pgste_val(pgste) & (RCP_ACC_BITS | RCP_FP_BIT)) >> 56; - if (okey != nkey) - page_set_storage_key(address, nkey, 1); + /* + * Set page access key and fetch protection bit from pgste. + * The guest C/R information is still in the PGSTE, set real + * key C/R to 0. + */ + nkey = (pgste_val(pgste) & (PGSTE_ACC_BITS | PGSTE_FP_BIT)) >> 56; + nkey |= (pgste_val(pgste) & (PGSTE_GR_BIT | PGSTE_GC_BIT)) >> 48; + page_set_storage_key(address, nkey, 0); #endif } +static inline pgste_t pgste_set_pte(pte_t *ptep, pgste_t pgste, pte_t entry) +{ + if ((pte_val(entry) & _PAGE_PRESENT) && + (pte_val(entry) & _PAGE_WRITE) && + !(pte_val(entry) & _PAGE_INVALID)) { + if (!MACHINE_HAS_ESOP) { + /* + * Without enhanced suppression-on-protection force + * the dirty bit on for all writable ptes. + */ + pte_val(entry) |= _PAGE_DIRTY; + pte_val(entry) &= ~_PAGE_PROTECT; + } + if (!(pte_val(entry) & _PAGE_PROTECT)) + /* This pte allows write access, set user-dirty */ + pgste_val(pgste) |= PGSTE_UC_BIT; + } + *ptep = entry; + return pgste; +} + /** * struct gmap_struct - guest address space * @mm: pointer to the parent mm_struct * @table: pointer to the page directory * @asce: address space control element for gmap page table * @crst_list: list of all crst tables used in the guest address space + * @pfault_enabled: defines if pfaults are applicable for the guest */ struct gmap { struct list_head list; struct mm_struct *mm; unsigned long *table; unsigned long asce; + void *private; struct list_head crst_list; + bool pfault_enabled; }; /** * struct gmap_rmap - reverse mapping for segment table entries - * @next: pointer to the next gmap_rmap structure in the list + * @gmap: pointer to the gmap_struct * @entry: pointer to a segment table entry + * @vmaddr: virtual address in the guest address space */ struct gmap_rmap { struct list_head list; + struct gmap *gmap; unsigned long *entry; + unsigned long vmaddr; }; /** * struct gmap_pgtable - gmap information attached to a page table * @vmaddr: address of the 1MB segment in the process virtual memory - * @mapper: list of segment table entries maping a page table + * @mapper: list of segment table entries mapping a page table */ struct gmap_pgtable { unsigned long vmaddr; struct list_head mapper; }; +/** + * struct gmap_notifier - notify function block for page invalidation + * @notifier_call: address of callback function + */ +struct gmap_notifier { + struct list_head list; + void (*notifier_call)(struct gmap *gmap, unsigned long address); +}; + struct gmap *gmap_alloc(struct mm_struct *mm); void gmap_free(struct gmap *gmap); void gmap_enable(struct gmap *gmap); void gmap_disable(struct gmap *gmap); int gmap_map_segment(struct gmap *gmap, unsigned long from, - unsigned long to, unsigned long length); + unsigned long to, unsigned long len); int gmap_unmap_segment(struct gmap *gmap, unsigned long to, unsigned long len); +unsigned long __gmap_translate(unsigned long address, struct gmap *); +unsigned long gmap_translate(unsigned long address, struct gmap *); unsigned long __gmap_fault(unsigned long address, struct gmap *); unsigned long gmap_fault(unsigned long address, struct gmap *); void gmap_discard(unsigned long from, unsigned long to, struct gmap *); +void __gmap_zap(unsigned long address, struct gmap *); +bool gmap_test_and_clear_dirty(unsigned long address, struct gmap *); + + +void gmap_register_ipte_notifier(struct gmap_notifier *); +void gmap_unregister_ipte_notifier(struct gmap_notifier *); +int gmap_ipte_notify(struct gmap *, unsigned long start, unsigned long len); +void gmap_do_ipte_notify(struct mm_struct *, pte_t *); + +static inline pgste_t pgste_ipte_notify(struct mm_struct *mm, + pte_t *ptep, pgste_t pgste) +{ +#ifdef CONFIG_PGSTE + if (pgste_val(pgste) & PGSTE_IN_BIT) { + pgste_val(pgste) &= ~PGSTE_IN_BIT; + gmap_do_ipte_notify(mm, ptep); + } +#endif + return pgste; +} /* * Certain architectures need to do special things when PTEs @@ -701,11 +870,15 @@ static inline void set_pte_at(struct mm_struct *mm, unsigned long addr, if (mm_has_pgste(mm)) { pgste = pgste_get_lock(ptep); - pgste_set_pte(ptep, pgste, entry); - *ptep = entry; + pgste_val(pgste) &= ~_PGSTE_GPS_ZERO; + pgste_set_key(ptep, pgste, entry, mm); + pgste = pgste_set_pte(ptep, pgste, entry); pgste_set_unlock(ptep, pgste); - } else + } else { + if (!(pte_val(entry) & _PAGE_INVALID) && MACHINE_HAS_EDAT1) + pte_val(entry) |= _PAGE_CO; *ptep = entry; + } } /* @@ -714,25 +887,23 @@ static inline void set_pte_at(struct mm_struct *mm, unsigned long addr, */ static inline int pte_write(pte_t pte) { - return (pte_val(pte) & _PAGE_RO) == 0; + return (pte_val(pte) & _PAGE_WRITE) != 0; } static inline int pte_dirty(pte_t pte) { -#ifdef CONFIG_PGSTE - if (pte_val(pte) & _PAGE_SWC) - return 1; -#endif - return 0; + return (pte_val(pte) & _PAGE_DIRTY) != 0; } static inline int pte_young(pte_t pte) { -#ifdef CONFIG_PGSTE - if (pte_val(pte) & _PAGE_SWR) - return 1; -#endif - return 0; + return (pte_val(pte) & _PAGE_YOUNG) != 0; +} + +#define __HAVE_ARCH_PTE_UNUSED +static inline int pte_unused(pte_t pte) +{ + return pte_val(pte) & _PAGE_UNUSED; } /* @@ -741,7 +912,7 @@ static inline int pte_young(pte_t pte) static inline void pgd_clear(pgd_t *pgd) { -#ifdef __s390x__ +#ifdef CONFIG_64BIT if ((pgd_val(*pgd) & _REGION_ENTRY_TYPE_MASK) == _REGION_ENTRY_TYPE_R2) pgd_val(*pgd) = _REGION2_ENTRY_EMPTY; #endif @@ -749,7 +920,7 @@ static inline void pgd_clear(pgd_t *pgd) static inline void pud_clear(pud_t *pud) { -#ifdef __s390x__ +#ifdef CONFIG_64BIT if ((pud_val(*pud) & _REGION_ENTRY_TYPE_MASK) == _REGION_ENTRY_TYPE_R3) pud_val(*pud) = _REGION3_ENTRY_EMPTY; #endif @@ -757,12 +928,12 @@ static inline void pud_clear(pud_t *pud) static inline void pmd_clear(pmd_t *pmdp) { - pmd_val(*pmdp) = _SEGMENT_ENTRY_EMPTY; + pmd_val(*pmdp) = _SEGMENT_ENTRY_INVALID; } static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { - pte_val(*ptep) = _PAGE_TYPE_EMPTY; + pte_val(*ptep) = _PAGE_INVALID; } /* @@ -773,46 +944,63 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) { pte_val(pte) &= _PAGE_CHG_MASK; pte_val(pte) |= pgprot_val(newprot); + /* + * newprot for PAGE_NONE, PAGE_READ and PAGE_WRITE has the + * invalid bit set, clear it again for readable, young pages + */ + if ((pte_val(pte) & _PAGE_YOUNG) && (pte_val(pte) & _PAGE_READ)) + pte_val(pte) &= ~_PAGE_INVALID; + /* + * newprot for PAGE_READ and PAGE_WRITE has the page protection + * bit set, clear it again for writable, dirty pages + */ + if ((pte_val(pte) & _PAGE_DIRTY) && (pte_val(pte) & _PAGE_WRITE)) + pte_val(pte) &= ~_PAGE_PROTECT; return pte; } static inline pte_t pte_wrprotect(pte_t pte) { - /* Do not clobber _PAGE_TYPE_NONE pages! */ - if (!(pte_val(pte) & _PAGE_INVALID)) - pte_val(pte) |= _PAGE_RO; + pte_val(pte) &= ~_PAGE_WRITE; + pte_val(pte) |= _PAGE_PROTECT; return pte; } static inline pte_t pte_mkwrite(pte_t pte) { - pte_val(pte) &= ~_PAGE_RO; + pte_val(pte) |= _PAGE_WRITE; + if (pte_val(pte) & _PAGE_DIRTY) + pte_val(pte) &= ~_PAGE_PROTECT; return pte; } static inline pte_t pte_mkclean(pte_t pte) { -#ifdef CONFIG_PGSTE - pte_val(pte) &= ~_PAGE_SWC; -#endif + pte_val(pte) &= ~_PAGE_DIRTY; + pte_val(pte) |= _PAGE_PROTECT; return pte; } static inline pte_t pte_mkdirty(pte_t pte) { + pte_val(pte) |= _PAGE_DIRTY; + if (pte_val(pte) & _PAGE_WRITE) + pte_val(pte) &= ~_PAGE_PROTECT; return pte; } static inline pte_t pte_mkold(pte_t pte) { -#ifdef CONFIG_PGSTE - pte_val(pte) &= ~_PAGE_SWR; -#endif + pte_val(pte) &= ~_PAGE_YOUNG; + pte_val(pte) |= _PAGE_INVALID; return pte; } static inline pte_t pte_mkyoung(pte_t pte) { + pte_val(pte) |= _PAGE_YOUNG; + if (pte_val(pte) & _PAGE_READ) + pte_val(pte) &= ~_PAGE_INVALID; return pte; } @@ -825,68 +1013,101 @@ static inline pte_t pte_mkspecial(pte_t pte) #ifdef CONFIG_HUGETLB_PAGE static inline pte_t pte_mkhuge(pte_t pte) { - /* - * PROT_NONE needs to be remapped from the pte type to the ste type. - * The HW invalid bit is also different for pte and ste. The pte - * invalid bit happens to be the same as the ste _SEGMENT_ENTRY_LARGE - * bit, so we don't have to clear it. - */ - if (pte_val(pte) & _PAGE_INVALID) { - if (pte_val(pte) & _PAGE_SWT) - pte_val(pte) |= _HPAGE_TYPE_NONE; - pte_val(pte) |= _SEGMENT_ENTRY_INV; - } - /* - * Clear SW pte bits SWT and SWX, there are no SW bits in a segment - * table entry. - */ - pte_val(pte) &= ~(_PAGE_SWT | _PAGE_SWX); - /* - * Also set the change-override bit because we don't need dirty bit - * tracking for hugetlbfs pages. - */ - pte_val(pte) |= (_SEGMENT_ENTRY_LARGE | _SEGMENT_ENTRY_CO); + pte_val(pte) |= _PAGE_LARGE; return pte; } #endif -/* - * Get (and clear) the user dirty bit for a pte. - */ -static inline int ptep_test_and_clear_user_dirty(struct mm_struct *mm, - pte_t *ptep) +static inline void __ptep_ipte(unsigned long address, pte_t *ptep) { - pgste_t pgste; - int dirty = 0; + unsigned long pto = (unsigned long) ptep; - if (mm_has_pgste(mm)) { - pgste = pgste_get_lock(ptep); - pgste = pgste_update_all(ptep, pgste); - dirty = !!(pgste_val(pgste) & KVM_UC_BIT); - pgste_val(pgste) &= ~KVM_UC_BIT; - pgste_set_unlock(ptep, pgste); - return dirty; - } - return dirty; +#ifndef CONFIG_64BIT + /* pto in ESA mode must point to the start of the segment table */ + pto &= 0x7ffffc00; +#endif + /* Invalidation + global TLB flush for the pte */ + asm volatile( + " ipte %2,%3" + : "=m" (*ptep) : "m" (*ptep), "a" (pto), "a" (address)); +} + +static inline void __ptep_ipte_local(unsigned long address, pte_t *ptep) +{ + unsigned long pto = (unsigned long) ptep; + +#ifndef CONFIG_64BIT + /* pto in ESA mode must point to the start of the segment table */ + pto &= 0x7ffffc00; +#endif + /* Invalidation + local TLB flush for the pte */ + asm volatile( + " .insn rrf,0xb2210000,%2,%3,0,1" + : "=m" (*ptep) : "m" (*ptep), "a" (pto), "a" (address)); +} + +static inline void ptep_flush_direct(struct mm_struct *mm, + unsigned long address, pte_t *ptep) +{ + int active, count; + + if (pte_val(*ptep) & _PAGE_INVALID) + return; + active = (mm == current->active_mm) ? 1 : 0; + count = atomic_add_return(0x10000, &mm->context.attach_count); + if (MACHINE_HAS_TLB_LC && (count & 0xffff) <= active && + cpumask_equal(mm_cpumask(mm), cpumask_of(smp_processor_id()))) + __ptep_ipte_local(address, ptep); + else + __ptep_ipte(address, ptep); + atomic_sub(0x10000, &mm->context.attach_count); +} + +static inline void ptep_flush_lazy(struct mm_struct *mm, + unsigned long address, pte_t *ptep) +{ + int active, count; + + if (pte_val(*ptep) & _PAGE_INVALID) + return; + active = (mm == current->active_mm) ? 1 : 0; + count = atomic_add_return(0x10000, &mm->context.attach_count); + if ((count & 0xffff) <= active) { + pte_val(*ptep) |= _PAGE_INVALID; + mm->context.flush_mm = 1; + } else + __ptep_ipte(address, ptep); + atomic_sub(0x10000, &mm->context.attach_count); } /* - * Get (and clear) the user referenced bit for a pte. + * Get (and clear) the user dirty bit for a pte. */ -static inline int ptep_test_and_clear_user_young(struct mm_struct *mm, +static inline int ptep_test_and_clear_user_dirty(struct mm_struct *mm, + unsigned long addr, pte_t *ptep) { pgste_t pgste; - int young = 0; + pte_t pte; + int dirty; - if (mm_has_pgste(mm)) { - pgste = pgste_get_lock(ptep); - pgste = pgste_update_young(ptep, pgste); - young = !!(pgste_val(pgste) & KVM_UR_BIT); - pgste_val(pgste) &= ~KVM_UR_BIT; - pgste_set_unlock(ptep, pgste); + if (!mm_has_pgste(mm)) + return 0; + pgste = pgste_get_lock(ptep); + dirty = !!(pgste_val(pgste) & PGSTE_UC_BIT); + pgste_val(pgste) &= ~PGSTE_UC_BIT; + pte = *ptep; + if (dirty && (pte_val(pte) & _PAGE_PRESENT)) { + pgste = pgste_ipte_notify(mm, ptep, pgste); + __ptep_ipte(addr, ptep); + if (MACHINE_HAS_ESOP || !(pte_val(pte) & _PAGE_WRITE)) + pte_val(pte) |= _PAGE_PROTECT; + else + pte_val(pte) |= _PAGE_INVALID; + *ptep = pte; } - return young; + pgste_set_unlock(ptep, pgste); + return dirty; } #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG @@ -895,46 +1116,34 @@ static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, { pgste_t pgste; pte_t pte; + int young; if (mm_has_pgste(vma->vm_mm)) { pgste = pgste_get_lock(ptep); - pgste = pgste_update_young(ptep, pgste); - pte = *ptep; - *ptep = pte_mkold(pte); - pgste_set_unlock(ptep, pgste); - return pte_young(pte); + pgste = pgste_ipte_notify(vma->vm_mm, ptep, pgste); } - return 0; + + pte = *ptep; + ptep_flush_direct(vma->vm_mm, addr, ptep); + young = pte_young(pte); + pte = pte_mkold(pte); + + if (mm_has_pgste(vma->vm_mm)) { + pgste = pgste_set_pte(ptep, pgste, pte); + pgste_set_unlock(ptep, pgste); + } else + *ptep = pte; + + return young; } #define __HAVE_ARCH_PTEP_CLEAR_YOUNG_FLUSH static inline int ptep_clear_flush_young(struct vm_area_struct *vma, unsigned long address, pte_t *ptep) { - /* No need to flush TLB - * On s390 reference bits are in storage key and never in TLB - * With virtualization we handle the reference bit, without we - * we can simply return */ return ptep_test_and_clear_young(vma, address, ptep); } -static inline void __ptep_ipte(unsigned long address, pte_t *ptep) -{ - if (!(pte_val(*ptep) & _PAGE_INVALID)) { -#ifndef __s390x__ - /* pto must point to the start of the segment table */ - pte_t *pto = (pte_t *) (((unsigned long) ptep) & 0x7ffffc00); -#else - /* ipte in zarch mode can do the math */ - pte_t *pto = ptep; -#endif - asm volatile( - " ipte %2,%3" - : "=m" (*ptep) : "m" (*ptep), - "a" (pto), "a" (address)); - } -} - /* * This is hard to understand. ptep_get_and_clear and ptep_clear_flush * both clear the TLB for the unmapped pte. The reason is that @@ -955,17 +1164,17 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm, pgste_t pgste; pte_t pte; - mm->context.flush_mm = 1; - if (mm_has_pgste(mm)) + if (mm_has_pgste(mm)) { pgste = pgste_get_lock(ptep); + pgste = pgste_ipte_notify(mm, ptep, pgste); + } pte = *ptep; - if (!mm_exclusive(mm)) - __ptep_ipte(address, ptep); - pte_val(*ptep) = _PAGE_TYPE_EMPTY; + ptep_flush_lazy(mm, address, ptep); + pte_val(*ptep) = _PAGE_INVALID; if (mm_has_pgste(mm)) { - pgste = pgste_update_all(&pte, pgste); + pgste = pgste_update_all(&pte, pgste, mm); pgste_set_unlock(ptep, pgste); } return pte; @@ -976,15 +1185,21 @@ static inline pte_t ptep_modify_prot_start(struct mm_struct *mm, unsigned long address, pte_t *ptep) { + pgste_t pgste; pte_t pte; - mm->context.flush_mm = 1; - if (mm_has_pgste(mm)) - pgste_get_lock(ptep); + if (mm_has_pgste(mm)) { + pgste = pgste_get_lock(ptep); + pgste_ipte_notify(mm, ptep, pgste); + } pte = *ptep; - if (!mm_exclusive(mm)) - __ptep_ipte(address, ptep); + ptep_flush_lazy(mm, address, ptep); + + if (mm_has_pgste(mm)) { + pgste = pgste_update_all(&pte, pgste, mm); + pgste_set(ptep, pgste); + } return pte; } @@ -992,9 +1207,15 @@ static inline void ptep_modify_prot_commit(struct mm_struct *mm, unsigned long address, pte_t *ptep, pte_t pte) { - *ptep = pte; - if (mm_has_pgste(mm)) - pgste_set_unlock(ptep, *(pgste_t *)(ptep + PTRS_PER_PTE)); + pgste_t pgste; + + if (mm_has_pgste(mm)) { + pgste = pgste_get(ptep); + pgste_set_key(ptep, pgste, pte, mm); + pgste = pgste_set_pte(ptep, pgste, pte); + pgste_set_unlock(ptep, pgste); + } else + *ptep = pte; } #define __HAVE_ARCH_PTEP_CLEAR_FLUSH @@ -1004,15 +1225,20 @@ static inline pte_t ptep_clear_flush(struct vm_area_struct *vma, pgste_t pgste; pte_t pte; - if (mm_has_pgste(vma->vm_mm)) + if (mm_has_pgste(vma->vm_mm)) { pgste = pgste_get_lock(ptep); + pgste = pgste_ipte_notify(vma->vm_mm, ptep, pgste); + } pte = *ptep; - __ptep_ipte(address, ptep); - pte_val(*ptep) = _PAGE_TYPE_EMPTY; + ptep_flush_direct(vma->vm_mm, address, ptep); + pte_val(*ptep) = _PAGE_INVALID; if (mm_has_pgste(vma->vm_mm)) { - pgste = pgste_update_all(&pte, pgste); + if ((pgste_val(pgste) & _PGSTE_GPS_USAGE_MASK) == + _PGSTE_GPS_USAGE_UNUSED) + pte_val(pte) |= _PAGE_UNUSED; + pgste = pgste_update_all(&pte, pgste, vma->vm_mm); pgste_set_unlock(ptep, pgste); } return pte; @@ -1033,16 +1259,18 @@ static inline pte_t ptep_get_and_clear_full(struct mm_struct *mm, pgste_t pgste; pte_t pte; - if (mm_has_pgste(mm)) + if (!full && mm_has_pgste(mm)) { pgste = pgste_get_lock(ptep); + pgste = pgste_ipte_notify(mm, ptep, pgste); + } pte = *ptep; if (!full) - __ptep_ipte(address, ptep); - pte_val(*ptep) = _PAGE_TYPE_EMPTY; + ptep_flush_lazy(mm, address, ptep); + pte_val(*ptep) = _PAGE_INVALID; - if (mm_has_pgste(mm)) { - pgste = pgste_update_all(&pte, pgste); + if (!full && mm_has_pgste(mm)) { + pgste = pgste_update_all(&pte, pgste, mm); pgste_set_unlock(ptep, pgste); } return pte; @@ -1056,16 +1284,19 @@ static inline pte_t ptep_set_wrprotect(struct mm_struct *mm, pte_t pte = *ptep; if (pte_write(pte)) { - mm->context.flush_mm = 1; - if (mm_has_pgste(mm)) + if (mm_has_pgste(mm)) { pgste = pgste_get_lock(ptep); + pgste = pgste_ipte_notify(mm, ptep, pgste); + } - if (!mm_exclusive(mm)) - __ptep_ipte(address, ptep); - *ptep = pte_wrprotect(pte); + ptep_flush_lazy(mm, address, ptep); + pte = pte_wrprotect(pte); - if (mm_has_pgste(mm)) + if (mm_has_pgste(mm)) { + pgste = pgste_set_pte(ptep, pgste, pte); pgste_set_unlock(ptep, pgste); + } else + *ptep = pte; } return pte; } @@ -1079,14 +1310,18 @@ static inline int ptep_set_access_flags(struct vm_area_struct *vma, if (pte_same(*ptep, entry)) return 0; - if (mm_has_pgste(vma->vm_mm)) + if (mm_has_pgste(vma->vm_mm)) { pgste = pgste_get_lock(ptep); + pgste = pgste_ipte_notify(vma->vm_mm, ptep, pgste); + } - __ptep_ipte(address, ptep); - *ptep = entry; + ptep_flush_direct(vma->vm_mm, address, ptep); - if (mm_has_pgste(vma->vm_mm)) + if (mm_has_pgste(vma->vm_mm)) { + pgste = pgste_set_pte(ptep, pgste, entry); pgste_set_unlock(ptep, pgste); + } else + *ptep = entry; return 1; } @@ -1098,14 +1333,17 @@ static inline pte_t mk_pte_phys(unsigned long physpage, pgprot_t pgprot) { pte_t __pte; pte_val(__pte) = physpage + pgprot_val(pgprot); - return __pte; + return pte_mkyoung(__pte); } static inline pte_t mk_pte(struct page *page, pgprot_t pgprot) { unsigned long physpage = page_to_phys(page); + pte_t __pte = mk_pte_phys(physpage, pgprot); - return mk_pte_phys(physpage, pgprot); + if (pte_write(__pte) && PageDirty(page)) + __pte = pte_mkdirty(__pte); + return __pte; } #define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1)) @@ -1116,7 +1354,7 @@ static inline pte_t mk_pte(struct page *page, pgprot_t pgprot) #define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address)) #define pgd_offset_k(address) pgd_offset(&init_mm, address) -#ifndef __s390x__ +#ifndef CONFIG_64BIT #define pmd_deref(pmd) (pmd_val(pmd) & _SEGMENT_ENTRY_ORIGIN) #define pud_deref(pmd) ({ BUG(); 0UL; }) @@ -1125,7 +1363,7 @@ static inline pte_t mk_pte(struct page *page, pgprot_t pgprot) #define pud_offset(pgd, address) ((pud_t *) pgd) #define pmd_offset(pud, address) ((pmd_t *) pud + pmd_index(address)) -#else /* __s390x__ */ +#else /* CONFIG_64BIT */ #define pmd_deref(pmd) (pmd_val(pmd) & _SEGMENT_ENTRY_ORIGIN) #define pud_deref(pud) (pud_val(pud) & _REGION_ENTRY_ORIGIN) @@ -1147,7 +1385,7 @@ static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address) return pmd + pmd_index(address); } -#endif /* __s390x__ */ +#endif /* CONFIG_64BIT */ #define pfn_pte(pfn,pgprot) mk_pte_phys(__pa((pfn) << PAGE_SHIFT),(pgprot)) #define pte_pfn(x) (pte_val(x) >> PAGE_SHIFT) @@ -1161,6 +1399,261 @@ static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address) #define pte_offset_map(pmd, address) pte_offset_kernel(pmd, address) #define pte_unmap(pte) do { } while (0) +#if defined(CONFIG_TRANSPARENT_HUGEPAGE) || defined(CONFIG_HUGETLB_PAGE) +static inline unsigned long massage_pgprot_pmd(pgprot_t pgprot) +{ + /* + * pgprot is PAGE_NONE, PAGE_READ, or PAGE_WRITE (see __Pxxx / __Sxxx) + * Convert to segment table entry format. + */ + if (pgprot_val(pgprot) == pgprot_val(PAGE_NONE)) + return pgprot_val(SEGMENT_NONE); + if (pgprot_val(pgprot) == pgprot_val(PAGE_READ)) + return pgprot_val(SEGMENT_READ); + return pgprot_val(SEGMENT_WRITE); +} + +static inline pmd_t pmd_mkyoung(pmd_t pmd) +{ +#ifdef CONFIG_64BIT + if (pmd_prot_none(pmd)) { + pmd_val(pmd) |= _SEGMENT_ENTRY_PROTECT; + } else { + pmd_val(pmd) |= _SEGMENT_ENTRY_YOUNG; + pmd_val(pmd) &= ~_SEGMENT_ENTRY_INVALID; + } +#endif + return pmd; +} + +static inline pmd_t pmd_mkold(pmd_t pmd) +{ +#ifdef CONFIG_64BIT + if (pmd_prot_none(pmd)) { + pmd_val(pmd) &= ~_SEGMENT_ENTRY_PROTECT; + } else { + pmd_val(pmd) &= ~_SEGMENT_ENTRY_YOUNG; + pmd_val(pmd) |= _SEGMENT_ENTRY_INVALID; + } +#endif + return pmd; +} + +static inline pmd_t pmd_modify(pmd_t pmd, pgprot_t newprot) +{ + int young; + + young = pmd_young(pmd); + pmd_val(pmd) &= _SEGMENT_CHG_MASK; + pmd_val(pmd) |= massage_pgprot_pmd(newprot); + if (young) + pmd = pmd_mkyoung(pmd); + return pmd; +} + +static inline pmd_t mk_pmd_phys(unsigned long physpage, pgprot_t pgprot) +{ + pmd_t __pmd; + pmd_val(__pmd) = physpage + massage_pgprot_pmd(pgprot); + return pmd_mkyoung(__pmd); +} + +static inline pmd_t pmd_mkwrite(pmd_t pmd) +{ + /* Do not clobber PROT_NONE segments! */ + if (!pmd_prot_none(pmd)) + pmd_val(pmd) &= ~_SEGMENT_ENTRY_PROTECT; + return pmd; +} +#endif /* CONFIG_TRANSPARENT_HUGEPAGE || CONFIG_HUGETLB_PAGE */ + +static inline void __pmdp_csp(pmd_t *pmdp) +{ + register unsigned long reg2 asm("2") = pmd_val(*pmdp); + register unsigned long reg3 asm("3") = pmd_val(*pmdp) | + _SEGMENT_ENTRY_INVALID; + register unsigned long reg4 asm("4") = ((unsigned long) pmdp) + 5; + + asm volatile( + " csp %1,%3" + : "=m" (*pmdp) + : "d" (reg2), "d" (reg3), "d" (reg4), "m" (*pmdp) : "cc"); +} + +static inline void __pmdp_idte(unsigned long address, pmd_t *pmdp) +{ + unsigned long sto; + + sto = (unsigned long) pmdp - pmd_index(address) * sizeof(pmd_t); + asm volatile( + " .insn rrf,0xb98e0000,%2,%3,0,0" + : "=m" (*pmdp) + : "m" (*pmdp), "a" (sto), "a" ((address & HPAGE_MASK)) + : "cc" ); +} + +static inline void __pmdp_idte_local(unsigned long address, pmd_t *pmdp) +{ + unsigned long sto; + + sto = (unsigned long) pmdp - pmd_index(address) * sizeof(pmd_t); + asm volatile( + " .insn rrf,0xb98e0000,%2,%3,0,1" + : "=m" (*pmdp) + : "m" (*pmdp), "a" (sto), "a" ((address & HPAGE_MASK)) + : "cc" ); +} + +static inline void pmdp_flush_direct(struct mm_struct *mm, + unsigned long address, pmd_t *pmdp) +{ + int active, count; + + if (pmd_val(*pmdp) & _SEGMENT_ENTRY_INVALID) + return; + if (!MACHINE_HAS_IDTE) { + __pmdp_csp(pmdp); + return; + } + active = (mm == current->active_mm) ? 1 : 0; + count = atomic_add_return(0x10000, &mm->context.attach_count); + if (MACHINE_HAS_TLB_LC && (count & 0xffff) <= active && + cpumask_equal(mm_cpumask(mm), cpumask_of(smp_processor_id()))) + __pmdp_idte_local(address, pmdp); + else + __pmdp_idte(address, pmdp); + atomic_sub(0x10000, &mm->context.attach_count); +} + +static inline void pmdp_flush_lazy(struct mm_struct *mm, + unsigned long address, pmd_t *pmdp) +{ + int active, count; + + if (pmd_val(*pmdp) & _SEGMENT_ENTRY_INVALID) + return; + active = (mm == current->active_mm) ? 1 : 0; + count = atomic_add_return(0x10000, &mm->context.attach_count); + if ((count & 0xffff) <= active) { + pmd_val(*pmdp) |= _SEGMENT_ENTRY_INVALID; + mm->context.flush_mm = 1; + } else if (MACHINE_HAS_IDTE) + __pmdp_idte(address, pmdp); + else + __pmdp_csp(pmdp); + atomic_sub(0x10000, &mm->context.attach_count); +} + +#ifdef CONFIG_TRANSPARENT_HUGEPAGE + +#define __HAVE_ARCH_PGTABLE_DEPOSIT +extern void pgtable_trans_huge_deposit(struct mm_struct *mm, pmd_t *pmdp, + pgtable_t pgtable); + +#define __HAVE_ARCH_PGTABLE_WITHDRAW +extern pgtable_t pgtable_trans_huge_withdraw(struct mm_struct *mm, pmd_t *pmdp); + +static inline int pmd_trans_splitting(pmd_t pmd) +{ + return pmd_val(pmd) & _SEGMENT_ENTRY_SPLIT; +} + +static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr, + pmd_t *pmdp, pmd_t entry) +{ + if (!(pmd_val(entry) & _SEGMENT_ENTRY_INVALID) && MACHINE_HAS_EDAT1) + pmd_val(entry) |= _SEGMENT_ENTRY_CO; + *pmdp = entry; +} + +static inline pmd_t pmd_mkhuge(pmd_t pmd) +{ + pmd_val(pmd) |= _SEGMENT_ENTRY_LARGE; + return pmd; +} + +static inline pmd_t pmd_wrprotect(pmd_t pmd) +{ + /* Do not clobber PROT_NONE segments! */ + if (!pmd_prot_none(pmd)) + pmd_val(pmd) |= _SEGMENT_ENTRY_PROTECT; + return pmd; +} + +static inline pmd_t pmd_mkdirty(pmd_t pmd) +{ + /* No dirty bit in the segment table entry. */ + return pmd; +} + +#define __HAVE_ARCH_PMDP_TEST_AND_CLEAR_YOUNG +static inline int pmdp_test_and_clear_young(struct vm_area_struct *vma, + unsigned long address, pmd_t *pmdp) +{ + pmd_t pmd; + + pmd = *pmdp; + pmdp_flush_direct(vma->vm_mm, address, pmdp); + *pmdp = pmd_mkold(pmd); + return pmd_young(pmd); +} + +#define __HAVE_ARCH_PMDP_GET_AND_CLEAR +static inline pmd_t pmdp_get_and_clear(struct mm_struct *mm, + unsigned long address, pmd_t *pmdp) +{ + pmd_t pmd = *pmdp; + + pmdp_flush_direct(mm, address, pmdp); + pmd_clear(pmdp); + return pmd; +} + +#define __HAVE_ARCH_PMDP_CLEAR_FLUSH +static inline pmd_t pmdp_clear_flush(struct vm_area_struct *vma, + unsigned long address, pmd_t *pmdp) +{ + return pmdp_get_and_clear(vma->vm_mm, address, pmdp); +} + +#define __HAVE_ARCH_PMDP_INVALIDATE +static inline void pmdp_invalidate(struct vm_area_struct *vma, + unsigned long address, pmd_t *pmdp) +{ + pmdp_flush_direct(vma->vm_mm, address, pmdp); +} + +#define __HAVE_ARCH_PMDP_SET_WRPROTECT +static inline void pmdp_set_wrprotect(struct mm_struct *mm, + unsigned long address, pmd_t *pmdp) +{ + pmd_t pmd = *pmdp; + + if (pmd_write(pmd)) { + pmdp_flush_direct(mm, address, pmdp); + set_pmd_at(mm, address, pmdp, pmd_wrprotect(pmd)); + } +} + +#define pfn_pmd(pfn, pgprot) mk_pmd_phys(__pa((pfn) << PAGE_SHIFT), (pgprot)) +#define mk_pmd(page, pgprot) pfn_pmd(page_to_pfn(page), (pgprot)) + +static inline int pmd_trans_huge(pmd_t pmd) +{ + return pmd_val(pmd) & _SEGMENT_ENTRY_LARGE; +} + +static inline int has_transparent_hugepage(void) +{ + return MACHINE_HAS_HPAGE ? 1 : 0; +} + +static inline unsigned long pmd_pfn(pmd_t pmd) +{ + return pmd_val(pmd) >> PAGE_SHIFT; +} +#endif /* CONFIG_TRANSPARENT_HUGEPAGE */ + /* * 31 bit swap entry format: * A page-table entry has some bits we have to treat in a special way. @@ -1168,10 +1661,8 @@ static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address) * exception will occur instead of a page translation exception. The * specifiation exception has the bad habit not to store necessary * information in the lowcore. - * Bit 21 and bit 22 are the page invalid bit and the page protection - * bit. We set both to indicate a swapped page. - * Bit 30 and 31 are used to distinguish the different page types. For - * a swapped page these bits need to be zero. + * Bits 21, 22, 30 and 31 are used to indicate the page type. + * A swap pte is indicated by bit pattern (pte & 0x603) == 0x402 * This leaves the bits 1-19 and bits 24-29 to store type and offset. * We use the 5 bits from 25-29 for the type and the 20 bits from 1-19 * plus 24 for the offset. @@ -1185,10 +1676,8 @@ static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address) * exception will occur instead of a page translation exception. The * specifiation exception has the bad habit not to store necessary * information in the lowcore. - * Bit 53 and bit 54 are the page invalid bit and the page protection - * bit. We set both to indicate a swapped page. - * Bit 62 and 63 are used to distinguish the different page types. For - * a swapped page these bits need to be zero. + * Bits 53, 54, 62 and 63 are used to indicate the page type. + * A swap pte is indicated by bit pattern (pte & 0x603) == 0x402 * This leaves the bits 0-51 and bits 56-61 to store type and offset. * We use the 5 bits from 57-61 for the type and the 53 bits from 0-51 * plus 56 for the offset. @@ -1196,7 +1685,7 @@ static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address) * 0000000000111111111122222222223333333333444444444455 5555 5 55566 66 * 0123456789012345678901234567890123456789012345678901 2345 6 78901 23 */ -#ifndef __s390x__ +#ifndef CONFIG_64BIT #define __SWP_OFFSET_MASK (~0UL >> 12) #else #define __SWP_OFFSET_MASK (~0UL >> 11) @@ -1205,7 +1694,7 @@ static inline pte_t mk_swap_pte(unsigned long type, unsigned long offset) { pte_t pte; offset &= __SWP_OFFSET_MASK; - pte_val(pte) = _PAGE_TYPE_SWAP | ((type & 0x1f) << 2) | + pte_val(pte) = _PAGE_INVALID | _PAGE_TYPE | ((type & 0x1f) << 2) | ((offset & 1UL) << 7) | ((offset & ~1UL) << 11); return pte; } @@ -1217,18 +1706,18 @@ static inline pte_t mk_swap_pte(unsigned long type, unsigned long offset) #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) #define __swp_entry_to_pte(x) ((pte_t) { (x).val }) -#ifndef __s390x__ +#ifndef CONFIG_64BIT # define PTE_FILE_MAX_BITS 26 -#else /* __s390x__ */ +#else /* CONFIG_64BIT */ # define PTE_FILE_MAX_BITS 59 -#endif /* __s390x__ */ +#endif /* CONFIG_64BIT */ #define pte_to_pgoff(__pte) \ ((((__pte).pte >> 12) << 7) + (((__pte).pte >> 1) & 0x7f)) #define pgoff_to_pte(__off) \ ((pte_t) { ((((__off) & 0x7f) << 1) + (((__off) >> 7) << 12)) \ - | _PAGE_TYPE_FILE }) + | _PAGE_INVALID | _PAGE_PROTECT }) #endif /* !__ASSEMBLY__ */ @@ -1237,11 +1726,13 @@ static inline pte_t mk_swap_pte(unsigned long type, unsigned long offset) extern int vmem_add_mapping(unsigned long start, unsigned long size); extern int vmem_remove_mapping(unsigned long start, unsigned long size); extern int s390_enable_sie(void); +extern void s390_enable_skey(void); /* * No page table caches to initialise */ -#define pgtable_cache_init() do { } while (0) +static inline void pgtable_cache_init(void) { } +static inline void check_pgt_cache(void) { } #include <asm-generic/pgtable.h> diff --git a/arch/s390/include/asm/poll.h b/arch/s390/include/asm/poll.h deleted file mode 100644 index c98509d3149..00000000000 --- a/arch/s390/include/asm/poll.h +++ /dev/null @@ -1 +0,0 @@ -#include <asm-generic/poll.h> diff --git a/arch/s390/include/asm/posix_types.h b/arch/s390/include/asm/posix_types.h deleted file mode 100644 index 8cc113f9252..00000000000 --- a/arch/s390/include/asm/posix_types.h +++ /dev/null @@ -1,107 +0,0 @@ -/* - * include/asm-s390/posix_types.h - * - * S390 version - * - * Derived from "include/asm-i386/posix_types.h" - */ - -#ifndef __ARCH_S390_POSIX_TYPES_H -#define __ARCH_S390_POSIX_TYPES_H - -/* - * This file is generally used by user-level software, so you need to - * be a little careful about namespace pollution etc. Also, we cannot - * assume GCC is being used. - */ - -typedef long __kernel_off_t; -typedef int __kernel_pid_t; -typedef unsigned long __kernel_size_t; -typedef long __kernel_time_t; -typedef long __kernel_suseconds_t; -typedef long __kernel_clock_t; -typedef int __kernel_timer_t; -typedef int __kernel_clockid_t; -typedef int __kernel_daddr_t; -typedef char * __kernel_caddr_t; -typedef unsigned short __kernel_uid16_t; -typedef unsigned short __kernel_gid16_t; - -#ifdef __GNUC__ -typedef long long __kernel_loff_t; -#endif - -#ifndef __s390x__ - -typedef unsigned long __kernel_ino_t; -typedef unsigned short __kernel_mode_t; -typedef unsigned short __kernel_nlink_t; -typedef unsigned short __kernel_ipc_pid_t; -typedef unsigned short __kernel_uid_t; -typedef unsigned short __kernel_gid_t; -typedef int __kernel_ssize_t; -typedef int __kernel_ptrdiff_t; -typedef unsigned int __kernel_uid32_t; -typedef unsigned int __kernel_gid32_t; -typedef unsigned short __kernel_old_uid_t; -typedef unsigned short __kernel_old_gid_t; -typedef unsigned short __kernel_old_dev_t; - -#else /* __s390x__ */ - -typedef unsigned int __kernel_ino_t; -typedef unsigned int __kernel_mode_t; -typedef unsigned int __kernel_nlink_t; -typedef int __kernel_ipc_pid_t; -typedef unsigned int __kernel_uid_t; -typedef unsigned int __kernel_gid_t; -typedef long __kernel_ssize_t; -typedef long __kernel_ptrdiff_t; -typedef unsigned long __kernel_sigset_t; /* at least 32 bits */ -typedef __kernel_uid_t __kernel_old_uid_t; -typedef __kernel_gid_t __kernel_old_gid_t; -typedef __kernel_uid_t __kernel_uid32_t; -typedef __kernel_gid_t __kernel_gid32_t; -typedef unsigned short __kernel_old_dev_t; - -#endif /* __s390x__ */ - -typedef struct { - int val[2]; -} __kernel_fsid_t; - - -#ifdef __KERNEL__ - -#undef __FD_SET -static inline void __FD_SET(unsigned long fd, __kernel_fd_set *fdsetp) -{ - unsigned long _tmp = fd / __NFDBITS; - unsigned long _rem = fd % __NFDBITS; - fdsetp->fds_bits[_tmp] |= (1UL<<_rem); -} - -#undef __FD_CLR -static inline void __FD_CLR(unsigned long fd, __kernel_fd_set *fdsetp) -{ - unsigned long _tmp = fd / __NFDBITS; - unsigned long _rem = fd % __NFDBITS; - fdsetp->fds_bits[_tmp] &= ~(1UL<<_rem); -} - -#undef __FD_ISSET -static inline int __FD_ISSET(unsigned long fd, const __kernel_fd_set *fdsetp) -{ - unsigned long _tmp = fd / __NFDBITS; - unsigned long _rem = fd % __NFDBITS; - return (fdsetp->fds_bits[_tmp] & (1UL<<_rem)) != 0; -} - -#undef __FD_ZERO -#define __FD_ZERO(fdsetp) \ - ((void) memset ((void *) (fdsetp), 0, sizeof (__kernel_fd_set))) - -#endif /* __KERNEL__ */ - -#endif diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h index d25843a6a91..6f02d452bbe 100644 --- a/arch/s390/include/asm/processor.h +++ b/arch/s390/include/asm/processor.h @@ -1,8 +1,6 @@ /* - * include/asm-s390/processor.h - * * S390 version - * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation + * Copyright IBM Corp. 1999 * Author(s): Hartmut Penner (hp@de.ibm.com), * Martin Schwidefsky (schwidefsky@de.ibm.com) * @@ -13,13 +11,38 @@ #ifndef __ASM_S390_PROCESSOR_H #define __ASM_S390_PROCESSOR_H +#define CIF_MCCK_PENDING 0 /* machine check handling is pending */ +#define CIF_ASCE 1 /* user asce needs fixup / uaccess */ + +#define _CIF_MCCK_PENDING (1<<CIF_MCCK_PENDING) +#define _CIF_ASCE (1<<CIF_ASCE) + + +#ifndef __ASSEMBLY__ + #include <linux/linkage.h> +#include <linux/irqflags.h> #include <asm/cpu.h> #include <asm/page.h> #include <asm/ptrace.h> #include <asm/setup.h> +#include <asm/runtime_instr.h> + +static inline void set_cpu_flag(int flag) +{ + S390_lowcore.cpu_flags |= (1U << flag); +} + +static inline void clear_cpu_flag(int flag) +{ + S390_lowcore.cpu_flags &= ~(1U << flag); +} + +static inline int test_cpu_flag(int flag) +{ + return !!(S390_lowcore.cpu_flags & (1U << flag)); +} -#ifdef __KERNEL__ /* * Default implementation of macro that returns current * instruction pointer ("program counter"). @@ -32,39 +55,36 @@ static inline void get_cpu_id(struct cpuid *ptr) } extern void s390_adjust_jiffies(void); -extern int get_cpu_capability(unsigned int *); extern const struct seq_operations cpuinfo_op; extern int sysctl_ieee_emulation_warnings; +extern void execve_tail(void); /* * User space process size: 2GB for 31 bit, 4TB or 8PT for 64 bit. */ -#ifndef __s390x__ +#ifndef CONFIG_64BIT #define TASK_SIZE (1UL << 31) +#define TASK_MAX_SIZE (1UL << 31) #define TASK_UNMAPPED_BASE (1UL << 30) -#else /* __s390x__ */ +#else /* CONFIG_64BIT */ #define TASK_SIZE_OF(tsk) ((tsk)->mm->context.asce_limit) #define TASK_UNMAPPED_BASE (test_thread_flag(TIF_31BIT) ? \ (1UL << 30) : (1UL << 41)) #define TASK_SIZE TASK_SIZE_OF(current) +#define TASK_MAX_SIZE (1UL << 53) -#endif /* __s390x__ */ - -#ifdef __KERNEL__ +#endif /* CONFIG_64BIT */ -#ifndef __s390x__ +#ifndef CONFIG_64BIT #define STACK_TOP (1UL << 31) #define STACK_TOP_MAX (1UL << 31) -#else /* __s390x__ */ +#else /* CONFIG_64BIT */ #define STACK_TOP (1UL << (test_thread_flag(TIF_31BIT) ? 31:42)) #define STACK_TOP_MAX (1UL << 42) -#endif /* __s390x__ */ - - -#endif +#endif /* CONFIG_64BIT */ #define HAVE_ARCH_PICK_MMAP_LAYOUT @@ -81,13 +101,31 @@ struct thread_struct { unsigned long ksp; /* kernel stack pointer */ mm_segment_t mm_segment; unsigned long gmap_addr; /* address of last gmap fault. */ + unsigned int gmap_pfault; /* signal of a pending guest pfault */ struct per_regs per_user; /* User specified PER registers */ struct per_event per_event; /* Cause of the last PER trap */ + unsigned long per_flags; /* Flags to control debug behavior */ /* pfault_wait is used to block the process on a pfault event */ unsigned long pfault_wait; struct list_head list; + /* cpu runtime instrumentation */ + struct runtime_instr_cb *ri_cb; + int ri_signum; +#ifdef CONFIG_64BIT + unsigned char trap_tdb[256]; /* Transaction abort diagnose block */ +#endif }; +/* Flag to disable transactions. */ +#define PER_FLAG_NO_TE 1UL +/* Flag to enable random transaction aborts. */ +#define PER_FLAG_TE_ABORT_RAND 2UL +/* Flag to specify random transaction abort mode: + * - abort each transaction at a random instruction before TEND if set. + * - abort random transactions at a random instruction if cleared. + */ +#define PER_FLAG_TE_ABORT_RAND_TEND 4UL + typedef struct thread_struct thread_struct; /* @@ -119,16 +157,18 @@ struct stack_frame { * Do necessary setup to start up a new thread. */ #define start_thread(regs, new_psw, new_stackp) do { \ - regs->psw.mask = psw_user_bits | PSW_MASK_EA | PSW_MASK_BA; \ + regs->psw.mask = PSW_USER_BITS | PSW_MASK_EA | PSW_MASK_BA; \ regs->psw.addr = new_psw | PSW_ADDR_AMODE; \ regs->gprs[15] = new_stackp; \ + execve_tail(); \ } while (0) #define start_thread31(regs, new_psw, new_stackp) do { \ - regs->psw.mask = psw_user_bits | PSW_MASK_BA; \ + regs->psw.mask = PSW_USER_BITS | PSW_MASK_BA; \ regs->psw.addr = new_psw | PSW_ADDR_AMODE; \ regs->gprs[15] = new_stackp; \ crst_table_downgrade(current->mm, 1UL << 31); \ + execve_tail(); \ } while (0) /* Forward declaration, a strange C thing */ @@ -136,26 +176,37 @@ struct task_struct; struct mm_struct; struct seq_file; +#ifdef CONFIG_64BIT +extern void show_cacheinfo(struct seq_file *m); +#else +static inline void show_cacheinfo(struct seq_file *m) { } +#endif + /* Free all resources held by a thread. */ extern void release_thread(struct task_struct *); -extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags); - -/* Prepare to copy thread state - unlazy all lazy status */ -#define prepare_to_copy(tsk) do { } while (0) /* * Return saved PC of a blocked thread. */ extern unsigned long thread_saved_pc(struct task_struct *t); -extern void show_code(struct pt_regs *regs); - unsigned long get_wchan(struct task_struct *p); #define task_pt_regs(tsk) ((struct pt_regs *) \ (task_stack_page(tsk) + THREAD_SIZE) - 1) #define KSTK_EIP(tsk) (task_pt_regs(tsk)->psw.addr) #define KSTK_ESP(tsk) (task_pt_regs(tsk)->gprs[15]) +/* Has task runtime instrumentation enabled ? */ +#define is_ri_task(tsk) (!!(tsk)->thread.ri_cb) + +static inline unsigned short stap(void) +{ + unsigned short cpu_address; + + asm volatile("stap %0" : "=m" (cpu_address)); + return cpu_address; +} + /* * Give up the time slice of the virtual PU. */ @@ -166,6 +217,8 @@ static inline void cpu_relax(void) barrier(); } +#define arch_mutex_cpu_relax() barrier() + static inline void psw_set_key(unsigned int key) { asm volatile("spka 0(%0)" : : "d" (key)); @@ -176,7 +229,7 @@ static inline void psw_set_key(unsigned int key) */ static inline void __load_psw(psw_t psw) { -#ifndef __s390x__ +#ifndef CONFIG_64BIT asm volatile("lpsw %0" : : "Q" (psw) : "cc"); #else asm volatile("lpswe %0" : : "Q" (psw) : "cc"); @@ -194,7 +247,7 @@ static inline void __load_psw_mask (unsigned long mask) psw.mask = mask; -#ifndef __s390x__ +#ifndef CONFIG_64BIT asm volatile( " basr %0,0\n" "0: ahi %0,1f-0b\n" @@ -202,14 +255,14 @@ static inline void __load_psw_mask (unsigned long mask) " lpsw %1\n" "1:" : "=&d" (addr), "=Q" (psw) : "Q" (psw) : "memory", "cc"); -#else /* __s390x__ */ +#else /* CONFIG_64BIT */ asm volatile( " larl %0,1f\n" " stg %0,%O1+8(%R1)\n" " lpswe %1\n" "1:" : "=&d" (addr), "=Q" (psw) : "Q" (psw) : "memory", "cc"); -#endif /* __s390x__ */ +#endif /* CONFIG_64BIT */ } /* @@ -217,7 +270,7 @@ static inline void __load_psw_mask (unsigned long mask) */ static inline unsigned long __rewind_psw(psw_t psw, unsigned long ilc) { -#ifndef __s390x__ +#ifndef CONFIG_64BIT if (psw.addr & PSW_ADDR_AMODE) /* 31 bit mode */ return (psw.addr - ilc) | PSW_ADDR_AMODE; @@ -247,7 +300,7 @@ static inline void __noreturn disabled_wait(unsigned long code) * Store status and then load disabled wait psw, * the processor is dead afterwards */ -#ifndef __s390x__ +#ifndef CONFIG_64BIT asm volatile( " stctl 0,0,0(%2)\n" " ni 0(%2),0xef\n" /* switch off protection */ @@ -266,7 +319,7 @@ static inline void __noreturn disabled_wait(unsigned long code) " lpsw 0(%1)" : "=m" (ctl_buf) : "a" (&dw_psw), "a" (&ctl_buf), "m" (dw_psw) : "cc"); -#else /* __s390x__ */ +#else /* CONFIG_64BIT */ asm volatile( " stctg 0,0,0(%2)\n" " ni 4(%2),0xef\n" /* switch off protection */ @@ -299,11 +352,26 @@ static inline void __noreturn disabled_wait(unsigned long code) " lpswe 0(%1)" : "=m" (ctl_buf) : "a" (&dw_psw), "a" (&ctl_buf), "m" (dw_psw) : "cc", "0", "1"); -#endif /* __s390x__ */ +#endif /* CONFIG_64BIT */ while (1); } /* + * Use to set psw mask except for the first byte which + * won't be changed by this function. + */ +static inline void +__set_psw_mask(unsigned long mask) +{ + __load_psw_mask(mask | (arch_local_save_flags() & ~(-1UL >> 8))); +} + +#define local_mcck_enable() \ + __set_psw_mask(PSW_KERNEL_BITS | PSW_MASK_DAT | PSW_MASK_MCHECK) +#define local_mcck_disable() \ + __set_psw_mask(PSW_KERNEL_BITS | PSW_MASK_DAT) + +/* * Basic Machine Check/Program Check Handler. */ @@ -317,23 +385,35 @@ extern void (*s390_base_ext_handler_fn)(void); #define ARCH_LOW_ADDRESS_LIMIT 0x7fffffffUL -#endif +extern int memcpy_real(void *, void *, size_t); +extern void memcpy_absolute(void *, void *, size_t); + +#define mem_assign_absolute(dest, val) { \ + __typeof__(dest) __tmp = (val); \ + \ + BUILD_BUG_ON(sizeof(__tmp) != sizeof(val)); \ + memcpy_absolute(&(dest), &__tmp, sizeof(__tmp)); \ +} /* * Helper macro for exception table entries */ -#ifndef __s390x__ -#define EX_TABLE(_fault,_target) \ - ".section __ex_table,\"a\"\n" \ - " .align 4\n" \ - " .long " #_fault "," #_target "\n" \ +#define EX_TABLE(_fault, _target) \ + ".section __ex_table,\"a\"\n" \ + ".align 4\n" \ + ".long (" #_fault ") - .\n" \ + ".long (" #_target ") - .\n" \ ".previous\n" -#else -#define EX_TABLE(_fault,_target) \ - ".section __ex_table,\"a\"\n" \ - " .align 8\n" \ - " .quad " #_fault "," #_target "\n" \ - ".previous\n" -#endif -#endif /* __ASM_S390_PROCESSOR_H */ +#else /* __ASSEMBLY__ */ + +#define EX_TABLE(_fault, _target) \ + .section __ex_table,"a" ; \ + .align 4 ; \ + .long (_fault) - . ; \ + .long (_target) - . ; \ + .previous + +#endif /* __ASSEMBLY__ */ + +#endif /* __ASM_S390_PROCESSOR_H */ diff --git a/arch/s390/include/asm/ptrace.h b/arch/s390/include/asm/ptrace.h index aeb77f01798..55d69dd7473 100644 --- a/arch/s390/include/asm/ptrace.h +++ b/arch/s390/include/asm/ptrace.h @@ -1,318 +1,70 @@ /* - * include/asm-s390/ptrace.h - * * S390 version - * Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation + * Copyright IBM Corp. 1999, 2000 * Author(s): Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com) */ - #ifndef _S390_PTRACE_H #define _S390_PTRACE_H -/* - * Offsets in the user_regs_struct. They are used for the ptrace - * system call and in entry.S - */ -#ifndef __s390x__ - -#define PT_PSWMASK 0x00 -#define PT_PSWADDR 0x04 -#define PT_GPR0 0x08 -#define PT_GPR1 0x0C -#define PT_GPR2 0x10 -#define PT_GPR3 0x14 -#define PT_GPR4 0x18 -#define PT_GPR5 0x1C -#define PT_GPR6 0x20 -#define PT_GPR7 0x24 -#define PT_GPR8 0x28 -#define PT_GPR9 0x2C -#define PT_GPR10 0x30 -#define PT_GPR11 0x34 -#define PT_GPR12 0x38 -#define PT_GPR13 0x3C -#define PT_GPR14 0x40 -#define PT_GPR15 0x44 -#define PT_ACR0 0x48 -#define PT_ACR1 0x4C -#define PT_ACR2 0x50 -#define PT_ACR3 0x54 -#define PT_ACR4 0x58 -#define PT_ACR5 0x5C -#define PT_ACR6 0x60 -#define PT_ACR7 0x64 -#define PT_ACR8 0x68 -#define PT_ACR9 0x6C -#define PT_ACR10 0x70 -#define PT_ACR11 0x74 -#define PT_ACR12 0x78 -#define PT_ACR13 0x7C -#define PT_ACR14 0x80 -#define PT_ACR15 0x84 -#define PT_ORIGGPR2 0x88 -#define PT_FPC 0x90 -/* - * A nasty fact of life that the ptrace api - * only supports passing of longs. - */ -#define PT_FPR0_HI 0x98 -#define PT_FPR0_LO 0x9C -#define PT_FPR1_HI 0xA0 -#define PT_FPR1_LO 0xA4 -#define PT_FPR2_HI 0xA8 -#define PT_FPR2_LO 0xAC -#define PT_FPR3_HI 0xB0 -#define PT_FPR3_LO 0xB4 -#define PT_FPR4_HI 0xB8 -#define PT_FPR4_LO 0xBC -#define PT_FPR5_HI 0xC0 -#define PT_FPR5_LO 0xC4 -#define PT_FPR6_HI 0xC8 -#define PT_FPR6_LO 0xCC -#define PT_FPR7_HI 0xD0 -#define PT_FPR7_LO 0xD4 -#define PT_FPR8_HI 0xD8 -#define PT_FPR8_LO 0XDC -#define PT_FPR9_HI 0xE0 -#define PT_FPR9_LO 0xE4 -#define PT_FPR10_HI 0xE8 -#define PT_FPR10_LO 0xEC -#define PT_FPR11_HI 0xF0 -#define PT_FPR11_LO 0xF4 -#define PT_FPR12_HI 0xF8 -#define PT_FPR12_LO 0xFC -#define PT_FPR13_HI 0x100 -#define PT_FPR13_LO 0x104 -#define PT_FPR14_HI 0x108 -#define PT_FPR14_LO 0x10C -#define PT_FPR15_HI 0x110 -#define PT_FPR15_LO 0x114 -#define PT_CR_9 0x118 -#define PT_CR_10 0x11C -#define PT_CR_11 0x120 -#define PT_IEEE_IP 0x13C -#define PT_LASTOFF PT_IEEE_IP -#define PT_ENDREGS 0x140-1 - -#define GPR_SIZE 4 -#define CR_SIZE 4 - -#define STACK_FRAME_OVERHEAD 96 /* size of minimum stack frame */ - -#else /* __s390x__ */ - -#define PT_PSWMASK 0x00 -#define PT_PSWADDR 0x08 -#define PT_GPR0 0x10 -#define PT_GPR1 0x18 -#define PT_GPR2 0x20 -#define PT_GPR3 0x28 -#define PT_GPR4 0x30 -#define PT_GPR5 0x38 -#define PT_GPR6 0x40 -#define PT_GPR7 0x48 -#define PT_GPR8 0x50 -#define PT_GPR9 0x58 -#define PT_GPR10 0x60 -#define PT_GPR11 0x68 -#define PT_GPR12 0x70 -#define PT_GPR13 0x78 -#define PT_GPR14 0x80 -#define PT_GPR15 0x88 -#define PT_ACR0 0x90 -#define PT_ACR1 0x94 -#define PT_ACR2 0x98 -#define PT_ACR3 0x9C -#define PT_ACR4 0xA0 -#define PT_ACR5 0xA4 -#define PT_ACR6 0xA8 -#define PT_ACR7 0xAC -#define PT_ACR8 0xB0 -#define PT_ACR9 0xB4 -#define PT_ACR10 0xB8 -#define PT_ACR11 0xBC -#define PT_ACR12 0xC0 -#define PT_ACR13 0xC4 -#define PT_ACR14 0xC8 -#define PT_ACR15 0xCC -#define PT_ORIGGPR2 0xD0 -#define PT_FPC 0xD8 -#define PT_FPR0 0xE0 -#define PT_FPR1 0xE8 -#define PT_FPR2 0xF0 -#define PT_FPR3 0xF8 -#define PT_FPR4 0x100 -#define PT_FPR5 0x108 -#define PT_FPR6 0x110 -#define PT_FPR7 0x118 -#define PT_FPR8 0x120 -#define PT_FPR9 0x128 -#define PT_FPR10 0x130 -#define PT_FPR11 0x138 -#define PT_FPR12 0x140 -#define PT_FPR13 0x148 -#define PT_FPR14 0x150 -#define PT_FPR15 0x158 -#define PT_CR_9 0x160 -#define PT_CR_10 0x168 -#define PT_CR_11 0x170 -#define PT_IEEE_IP 0x1A8 -#define PT_LASTOFF PT_IEEE_IP -#define PT_ENDREGS 0x1B0-1 - -#define GPR_SIZE 8 -#define CR_SIZE 8 +#include <uapi/asm/ptrace.h> -#define STACK_FRAME_OVERHEAD 160 /* size of minimum stack frame */ +#define PIF_SYSCALL 0 /* inside a system call */ +#define PIF_PER_TRAP 1 /* deliver sigtrap on return to user */ -#endif /* __s390x__ */ - -#define NUM_GPRS 16 -#define NUM_FPRS 16 -#define NUM_CRS 16 -#define NUM_ACRS 16 - -#define NUM_CR_WORDS 3 - -#define FPR_SIZE 8 -#define FPC_SIZE 4 -#define FPC_PAD_SIZE 4 /* gcc insists on aligning the fpregs */ -#define ACR_SIZE 4 - - -#define PTRACE_OLDSETOPTIONS 21 +#define _PIF_SYSCALL (1<<PIF_SYSCALL) +#define _PIF_PER_TRAP (1<<PIF_PER_TRAP) #ifndef __ASSEMBLY__ -#include <linux/stddef.h> -#include <linux/types.h> - -typedef union -{ - float f; - double d; - __u64 ui; - struct - { - __u32 hi; - __u32 lo; - } fp; -} freg_t; - -typedef struct -{ - __u32 fpc; - freg_t fprs[NUM_FPRS]; -} s390_fp_regs; - -#define FPC_EXCEPTION_MASK 0xF8000000 -#define FPC_FLAGS_MASK 0x00F80000 -#define FPC_DXC_MASK 0x0000FF00 -#define FPC_RM_MASK 0x00000003 -#define FPC_VALID_MASK 0xF8F8FF03 -/* this typedef defines how a Program Status Word looks like */ -typedef struct -{ - unsigned long mask; - unsigned long addr; -} __attribute__ ((aligned(8))) psw_t; - -typedef struct -{ - __u32 mask; - __u32 addr; -} __attribute__ ((aligned(8))) psw_compat_t; - -#ifndef __s390x__ - -#define PSW_MASK_PER 0x40000000UL -#define PSW_MASK_DAT 0x04000000UL -#define PSW_MASK_IO 0x02000000UL -#define PSW_MASK_EXT 0x01000000UL -#define PSW_MASK_KEY 0x00F00000UL -#define PSW_MASK_BASE 0x00080000UL /* always one */ -#define PSW_MASK_MCHECK 0x00040000UL -#define PSW_MASK_WAIT 0x00020000UL -#define PSW_MASK_PSTATE 0x00010000UL -#define PSW_MASK_ASC 0x0000C000UL -#define PSW_MASK_CC 0x00003000UL -#define PSW_MASK_PM 0x00000F00UL -#define PSW_MASK_EA 0x00000000UL -#define PSW_MASK_BA 0x00000000UL - -#define PSW_MASK_USER 0x00003F00UL - -#define PSW_ADDR_AMODE 0x80000000UL -#define PSW_ADDR_INSN 0x7FFFFFFFUL - -#define PSW_DEFAULT_KEY (((unsigned long) PAGE_DEFAULT_ACC) << 20) - -#define PSW_ASC_PRIMARY 0x00000000UL -#define PSW_ASC_ACCREG 0x00004000UL -#define PSW_ASC_SECONDARY 0x00008000UL -#define PSW_ASC_HOME 0x0000C000UL - -#else /* __s390x__ */ - -#define PSW_MASK_PER 0x4000000000000000UL -#define PSW_MASK_DAT 0x0400000000000000UL -#define PSW_MASK_IO 0x0200000000000000UL -#define PSW_MASK_EXT 0x0100000000000000UL -#define PSW_MASK_BASE 0x0000000000000000UL -#define PSW_MASK_KEY 0x00F0000000000000UL -#define PSW_MASK_MCHECK 0x0004000000000000UL -#define PSW_MASK_WAIT 0x0002000000000000UL -#define PSW_MASK_PSTATE 0x0001000000000000UL -#define PSW_MASK_ASC 0x0000C00000000000UL -#define PSW_MASK_CC 0x0000300000000000UL -#define PSW_MASK_PM 0x00000F0000000000UL -#define PSW_MASK_EA 0x0000000100000000UL -#define PSW_MASK_BA 0x0000000080000000UL - -#define PSW_MASK_USER 0x00003F0180000000UL - -#define PSW_ADDR_AMODE 0x0000000000000000UL -#define PSW_ADDR_INSN 0xFFFFFFFFFFFFFFFFUL - -#define PSW_DEFAULT_KEY (((unsigned long) PAGE_DEFAULT_ACC) << 52) - -#define PSW_ASC_PRIMARY 0x0000000000000000UL -#define PSW_ASC_ACCREG 0x0000400000000000UL -#define PSW_ASC_SECONDARY 0x0000800000000000UL -#define PSW_ASC_HOME 0x0000C00000000000UL - -#endif /* __s390x__ */ - -#ifdef __KERNEL__ -extern long psw_kernel_bits; -extern long psw_user_bits; +#define PSW_KERNEL_BITS (PSW_DEFAULT_KEY | PSW_MASK_BASE | PSW_ASC_HOME | \ + PSW_MASK_EA | PSW_MASK_BA) +#define PSW_USER_BITS (PSW_MASK_DAT | PSW_MASK_IO | PSW_MASK_EXT | \ + PSW_DEFAULT_KEY | PSW_MASK_BASE | PSW_MASK_MCHECK | \ + PSW_MASK_PSTATE | PSW_ASC_PRIMARY) + +struct psw_bits { + unsigned long long : 1; + unsigned long long r : 1; /* PER-Mask */ + unsigned long long : 3; + unsigned long long t : 1; /* DAT Mode */ + unsigned long long i : 1; /* Input/Output Mask */ + unsigned long long e : 1; /* External Mask */ + unsigned long long key : 4; /* PSW Key */ + unsigned long long : 1; + unsigned long long m : 1; /* Machine-Check Mask */ + unsigned long long w : 1; /* Wait State */ + unsigned long long p : 1; /* Problem State */ + unsigned long long as : 2; /* Address Space Control */ + unsigned long long cc : 2; /* Condition Code */ + unsigned long long pm : 4; /* Program Mask */ + unsigned long long ri : 1; /* Runtime Instrumentation */ + unsigned long long : 6; + unsigned long long eaba : 2; /* Addressing Mode */ +#ifdef CONFIG_64BIT + unsigned long long : 31; + unsigned long long ia : 64;/* Instruction Address */ +#else + unsigned long long ia : 31;/* Instruction Address */ #endif +}; -/* - * The s390_regs structure is used to define the elf_gregset_t. - */ -typedef struct -{ - psw_t psw; - unsigned long gprs[NUM_GPRS]; - unsigned int acrs[NUM_ACRS]; - unsigned long orig_gpr2; -} s390_regs; - -typedef struct -{ - psw_compat_t psw; - __u32 gprs[NUM_GPRS]; - __u32 acrs[NUM_ACRS]; - __u32 orig_gpr2; -} s390_compat_regs; +enum { + PSW_AMODE_24BIT = 0, + PSW_AMODE_31BIT = 1, + PSW_AMODE_64BIT = 3 +}; -typedef struct -{ - __u32 gprs_high[NUM_GPRS]; -} s390_compat_regs_high; +enum { + PSW_AS_PRIMARY = 0, + PSW_AS_ACCREG = 1, + PSW_AS_SECONDARY = 2, + PSW_AS_HOME = 3 +}; -#ifdef __KERNEL__ +#define psw_bits(__psw) (*({ \ + typecheck(psw_t, __psw); \ + &(*(struct psw_bits *)(&(__psw))); \ +})) /* * The pt_regs struct defines the way the registers are stored on @@ -325,7 +77,9 @@ struct pt_regs unsigned long gprs[NUM_GPRS]; unsigned long orig_gpr2; unsigned int int_code; + unsigned int int_parm; unsigned long int_parm_long; + unsigned long flags; }; /* @@ -361,182 +115,41 @@ struct per_struct_kernel { unsigned char access_id; /* PER trap access identification */ }; -#define PER_EVENT_MASK 0xE9000000UL +#define PER_EVENT_MASK 0xEB000000UL #define PER_EVENT_BRANCH 0x80000000UL #define PER_EVENT_IFETCH 0x40000000UL #define PER_EVENT_STORE 0x20000000UL #define PER_EVENT_STORE_REAL 0x08000000UL +#define PER_EVENT_TRANSACTION_END 0x02000000UL #define PER_EVENT_NULLIFICATION 0x01000000UL -#define PER_CONTROL_MASK 0x00a00000UL +#define PER_CONTROL_MASK 0x00e00000UL #define PER_CONTROL_BRANCH_ADDRESS 0x00800000UL +#define PER_CONTROL_SUSPENSION 0x00400000UL #define PER_CONTROL_ALTERATION 0x00200000UL -#endif - -/* - * Now for the user space program event recording (trace) definitions. - * The following structures are used only for the ptrace interface, don't - * touch or even look at it if you don't want to modify the user-space - * ptrace interface. In particular stay away from it for in-kernel PER. - */ -typedef struct -{ - unsigned long cr[NUM_CR_WORDS]; -} per_cr_words; - -#define PER_EM_MASK 0xE8000000UL - -typedef struct -{ -#ifdef __s390x__ - unsigned : 32; -#endif /* __s390x__ */ - unsigned em_branching : 1; - unsigned em_instruction_fetch : 1; - /* - * Switching on storage alteration automatically fixes - * the storage alteration event bit in the users std. - */ - unsigned em_storage_alteration : 1; - unsigned em_gpr_alt_unused : 1; - unsigned em_store_real_address : 1; - unsigned : 3; - unsigned branch_addr_ctl : 1; - unsigned : 1; - unsigned storage_alt_space_ctl : 1; - unsigned : 21; - unsigned long starting_addr; - unsigned long ending_addr; -} per_cr_bits; - -typedef struct -{ - unsigned short perc_atmid; - unsigned long address; - unsigned char access_id; -} per_lowcore_words; - -typedef struct -{ - unsigned perc_branching : 1; - unsigned perc_instruction_fetch : 1; - unsigned perc_storage_alteration : 1; - unsigned perc_gpr_alt_unused : 1; - unsigned perc_store_real_address : 1; - unsigned : 3; - unsigned atmid_psw_bit_31 : 1; - unsigned atmid_validity_bit : 1; - unsigned atmid_psw_bit_32 : 1; - unsigned atmid_psw_bit_5 : 1; - unsigned atmid_psw_bit_16 : 1; - unsigned atmid_psw_bit_17 : 1; - unsigned si : 2; - unsigned long address; - unsigned : 4; - unsigned access_id : 4; -} per_lowcore_bits; - -typedef struct +static inline void set_pt_regs_flag(struct pt_regs *regs, int flag) { - union { - per_cr_words words; - per_cr_bits bits; - } control_regs; - /* - * Use these flags instead of setting em_instruction_fetch - * directly they are used so that single stepping can be - * switched on & off while not affecting other tracing - */ - unsigned single_step : 1; - unsigned instruction_fetch : 1; - unsigned : 30; - /* - * These addresses are copied into cr10 & cr11 if single - * stepping is switched off - */ - unsigned long starting_addr; - unsigned long ending_addr; - union { - per_lowcore_words words; - per_lowcore_bits bits; - } lowcore; -} per_struct; - -typedef struct -{ - unsigned int len; - unsigned long kernel_addr; - unsigned long process_addr; -} ptrace_area; - -/* - * S/390 specific non posix ptrace requests. I chose unusual values so - * they are unlikely to clash with future ptrace definitions. - */ -#define PTRACE_PEEKUSR_AREA 0x5000 -#define PTRACE_POKEUSR_AREA 0x5001 -#define PTRACE_PEEKTEXT_AREA 0x5002 -#define PTRACE_PEEKDATA_AREA 0x5003 -#define PTRACE_POKETEXT_AREA 0x5004 -#define PTRACE_POKEDATA_AREA 0x5005 -#define PTRACE_GET_LAST_BREAK 0x5006 -#define PTRACE_PEEK_SYSTEM_CALL 0x5007 -#define PTRACE_POKE_SYSTEM_CALL 0x5008 - -/* - * PT_PROT definition is loosely based on hppa bsd definition in - * gdb/hppab-nat.c - */ -#define PTRACE_PROT 21 - -typedef enum -{ - ptprot_set_access_watchpoint, - ptprot_set_write_watchpoint, - ptprot_disable_watchpoint -} ptprot_flags; + regs->flags |= (1U << flag); +} -typedef struct +static inline void clear_pt_regs_flag(struct pt_regs *regs, int flag) { - unsigned long lowaddr; - unsigned long hiaddr; - ptprot_flags prot; -} ptprot_area; - -/* Sequence of bytes for breakpoint illegal instruction. */ -#define S390_BREAKPOINT {0x0,0x1} -#define S390_BREAKPOINT_U16 ((__u16)0x0001) -#define S390_SYSCALL_OPCODE ((__u16)0x0a00) -#define S390_SYSCALL_SIZE 2 + regs->flags &= ~(1U << flag); +} -/* - * The user_regs_struct defines the way the user registers are - * store on the stack for signal handling. - */ -struct user_regs_struct +static inline int test_pt_regs_flag(struct pt_regs *regs, int flag) { - psw_t psw; - unsigned long gprs[NUM_GPRS]; - unsigned int acrs[NUM_ACRS]; - unsigned long orig_gpr2; - s390_fp_regs fp_regs; - /* - * These per registers are in here so that gdb can modify them - * itself as there is no "official" ptrace interface for hardware - * watchpoints. This is the way intel does it. - */ - per_struct per_info; - unsigned long ieee_instruction_pointer; /* obsolete, always 0 */ -}; + return !!(regs->flags & (1U << flag)); +} -#ifdef __KERNEL__ /* * These are defined as per linux/ptrace.h, which see. */ #define arch_has_single_step() (1) +#define arch_has_block_step() (1) #define user_mode(regs) (((regs)->psw.mask & PSW_MASK_PSTATE) != 0) #define instruction_pointer(regs) ((regs)->psw.addr & PSW_ADDR_INSN) @@ -558,7 +171,5 @@ static inline unsigned long kernel_stack_pointer(struct pt_regs *regs) return regs->gprs[15] & PSW_ADDR_INSN; } -#endif /* __KERNEL__ */ #endif /* __ASSEMBLY__ */ - #endif /* _S390_PTRACE_H */ diff --git a/arch/s390/include/asm/qdio.h b/arch/s390/include/asm/qdio.h index d75c8e78f7e..d786c634e05 100644 --- a/arch/s390/include/asm/qdio.h +++ b/arch/s390/include/asm/qdio.h @@ -1,7 +1,5 @@ /* - * linux/include/asm-s390/qdio.h - * - * Copyright 2000,2008 IBM Corp. + * Copyright IBM Corp. 2000, 2008 * Author(s): Utz Bacher <utz.bacher@de.ibm.com> * Jan Glauber <jang@linux.vnet.ibm.com> * @@ -258,11 +256,6 @@ struct slsb { u8 val[QDIO_MAX_BUFFERS_PER_Q]; } __attribute__ ((packed, aligned(256))); -#define CHSC_AC2_MULTI_BUFFER_AVAILABLE 0x0080 -#define CHSC_AC2_MULTI_BUFFER_ENABLED 0x0040 -#define CHSC_AC2_DATA_DIV_AVAILABLE 0x0010 -#define CHSC_AC2_DATA_DIV_ENABLED 0x0002 - /** * struct qdio_outbuf_state - SBAL related asynchronous operation information * (for communication with upper layer programs) @@ -293,6 +286,8 @@ struct qdio_outbuf_state { #define AC1_SC_QEBSM_AVAILABLE 0x02 /* available for subchannel */ #define AC1_SC_QEBSM_ENABLED 0x01 /* enabled for subchannel */ +#define CHSC_AC2_MULTI_BUFFER_AVAILABLE 0x0080 +#define CHSC_AC2_MULTI_BUFFER_ENABLED 0x0040 #define CHSC_AC2_DATA_DIV_AVAILABLE 0x0010 #define CHSC_AC2_DATA_DIV_ENABLED 0x0002 @@ -328,18 +323,20 @@ typedef void qdio_handler_t(struct ccw_device *, unsigned int, int, int, int, unsigned long); /* qdio errors reported to the upper-layer program */ -#define QDIO_ERROR_SIGA_TARGET 0x02 -#define QDIO_ERROR_SIGA_ACCESS_EXCEPTION 0x10 -#define QDIO_ERROR_SIGA_BUSY 0x20 -#define QDIO_ERROR_ACTIVATE_CHECK_CONDITION 0x40 -#define QDIO_ERROR_SLSB_STATE 0x80 +#define QDIO_ERROR_ACTIVATE 0x0001 +#define QDIO_ERROR_GET_BUF_STATE 0x0002 +#define QDIO_ERROR_SET_BUF_STATE 0x0004 +#define QDIO_ERROR_SLSB_STATE 0x0100 + +#define QDIO_ERROR_FATAL 0x00ff +#define QDIO_ERROR_TEMPORARY 0xff00 /* for qdio_cleanup */ #define QDIO_FLAG_CLEANUP_USING_CLEAR 0x01 #define QDIO_FLAG_CLEANUP_USING_HALT 0x02 /** - * struct qdio_initialize - qdio initalization data + * struct qdio_initialize - qdio initialization data * @cdev: associated ccw device * @q_format: queue format * @adapter_name: name for the adapter @@ -381,6 +378,34 @@ struct qdio_initialize { struct qdio_outbuf_state *output_sbal_state_array; }; +/** + * enum qdio_brinfo_entry_type - type of address entry for qdio_brinfo_desc() + * @l3_ipv6_addr: entry contains IPv6 address + * @l3_ipv4_addr: entry contains IPv4 address + * @l2_addr_lnid: entry contains MAC address and VLAN ID + */ +enum qdio_brinfo_entry_type {l3_ipv6_addr, l3_ipv4_addr, l2_addr_lnid}; + +/** + * struct qdio_brinfo_entry_XXX - Address entry for qdio_brinfo_desc() + * @nit: Network interface token + * @addr: Address of one of the three types + * + * The struct is passed to the callback function by qdio_brinfo_desc() + */ +struct qdio_brinfo_entry_l3_ipv6 { + u64 nit; + struct { unsigned char _s6_addr[16]; } addr; +} __packed; +struct qdio_brinfo_entry_l3_ipv4 { + u64 nit; + struct { uint32_t _s_addr; } addr; +} __packed; +struct qdio_brinfo_entry_l2 { + u64 nit; + struct { u8 mac[6]; u16 lnid; } addr_lnid; +} __packed; + #define QDIO_STATE_INACTIVE 0x00000002 /* after qdio_cleanup */ #define QDIO_STATE_ESTABLISHED 0x00000004 /* after qdio_establish */ #define QDIO_STATE_ACTIVE 0x00000008 /* after qdio_activate */ @@ -402,5 +427,10 @@ extern int qdio_get_next_buffers(struct ccw_device *, int, int *, int *); extern int qdio_shutdown(struct ccw_device *, int); extern int qdio_free(struct ccw_device *); extern int qdio_get_ssqd_desc(struct ccw_device *, struct qdio_ssqd_desc *); +extern int qdio_pnso_brinfo(struct subchannel_id schid, + int cnc, u16 *response, + void (*cb)(void *priv, enum qdio_brinfo_entry_type type, + void *entry), + void *priv); #endif /* __QDIO_H__ */ diff --git a/arch/s390/include/asm/qeth.h b/arch/s390/include/asm/qeth.h deleted file mode 100644 index 90efda0b137..00000000000 --- a/arch/s390/include/asm/qeth.h +++ /dev/null @@ -1,110 +0,0 @@ -/* - * include/asm-s390/qeth.h - * - * ioctl definitions for qeth driver - * - * Copyright (C) 2004 IBM Corporation - * - * Author(s): Thomas Spatzier <tspat@de.ibm.com> - * - */ -#ifndef __ASM_S390_QETH_IOCTL_H__ -#define __ASM_S390_QETH_IOCTL_H__ -#include <linux/types.h> -#include <linux/ioctl.h> - -#define SIOC_QETH_ARP_SET_NO_ENTRIES (SIOCDEVPRIVATE) -#define SIOC_QETH_ARP_QUERY_INFO (SIOCDEVPRIVATE + 1) -#define SIOC_QETH_ARP_ADD_ENTRY (SIOCDEVPRIVATE + 2) -#define SIOC_QETH_ARP_REMOVE_ENTRY (SIOCDEVPRIVATE + 3) -#define SIOC_QETH_ARP_FLUSH_CACHE (SIOCDEVPRIVATE + 4) -#define SIOC_QETH_ADP_SET_SNMP_CONTROL (SIOCDEVPRIVATE + 5) -#define SIOC_QETH_GET_CARD_TYPE (SIOCDEVPRIVATE + 6) - -struct qeth_arp_cache_entry { - __u8 macaddr[6]; - __u8 reserved1[2]; - __u8 ipaddr[16]; /* for both IPv4 and IPv6 */ - __u8 reserved2[32]; -} __attribute__ ((packed)); - -enum qeth_arp_ipaddrtype { - QETHARP_IP_ADDR_V4 = 1, - QETHARP_IP_ADDR_V6 = 2, -}; -struct qeth_arp_entrytype { - __u8 mac; - __u8 ip; -} __attribute__((packed)); - -#define QETH_QARP_MEDIASPECIFIC_BYTES 32 -#define QETH_QARP_MACADDRTYPE_BYTES 1 -struct qeth_arp_qi_entry7 { - __u8 media_specific[QETH_QARP_MEDIASPECIFIC_BYTES]; - struct qeth_arp_entrytype type; - __u8 macaddr[6]; - __u8 ipaddr[4]; -} __attribute__((packed)); - -struct qeth_arp_qi_entry7_ipv6 { - __u8 media_specific[QETH_QARP_MEDIASPECIFIC_BYTES]; - struct qeth_arp_entrytype type; - __u8 macaddr[6]; - __u8 ipaddr[16]; -} __attribute__((packed)); - -struct qeth_arp_qi_entry7_short { - struct qeth_arp_entrytype type; - __u8 macaddr[6]; - __u8 ipaddr[4]; -} __attribute__((packed)); - -struct qeth_arp_qi_entry7_short_ipv6 { - struct qeth_arp_entrytype type; - __u8 macaddr[6]; - __u8 ipaddr[16]; -} __attribute__((packed)); - -struct qeth_arp_qi_entry5 { - __u8 media_specific[QETH_QARP_MEDIASPECIFIC_BYTES]; - struct qeth_arp_entrytype type; - __u8 ipaddr[4]; -} __attribute__((packed)); - -struct qeth_arp_qi_entry5_ipv6 { - __u8 media_specific[QETH_QARP_MEDIASPECIFIC_BYTES]; - struct qeth_arp_entrytype type; - __u8 ipaddr[16]; -} __attribute__((packed)); - -struct qeth_arp_qi_entry5_short { - struct qeth_arp_entrytype type; - __u8 ipaddr[4]; -} __attribute__((packed)); - -struct qeth_arp_qi_entry5_short_ipv6 { - struct qeth_arp_entrytype type; - __u8 ipaddr[16]; -} __attribute__((packed)); -/* - * can be set by user if no "media specific information" is wanted - * -> saves a lot of space in user space buffer - */ -#define QETH_QARP_STRIP_ENTRIES 0x8000 -#define QETH_QARP_WITH_IPV6 0x4000 -#define QETH_QARP_REQUEST_MASK 0x00ff - -/* data sent to user space as result of query arp ioctl */ -#define QETH_QARP_USER_DATA_SIZE 20000 -#define QETH_QARP_MASK_OFFSET 4 -#define QETH_QARP_ENTRIES_OFFSET 6 -struct qeth_arp_query_user_data { - union { - __u32 data_len; /* set by user space program */ - __u32 no_entries; /* set by kernel */ - } u; - __u16 mask_bits; - char *entries; -} __attribute__((packed)); - -#endif /* __ASM_S390_QETH_IOCTL_H__ */ diff --git a/arch/s390/include/asm/reset.h b/arch/s390/include/asm/reset.h index 3d6ad4ad2a3..804578587a7 100644 --- a/arch/s390/include/asm/reset.h +++ b/arch/s390/include/asm/reset.h @@ -1,6 +1,4 @@ /* - * include/asm-s390/reset.h - * * Copyright IBM Corp. 2006 * Author(s): Heiko Carstens <heiko.carstens@de.ibm.com> */ diff --git a/arch/s390/include/asm/resource.h b/arch/s390/include/asm/resource.h deleted file mode 100644 index 366c01de04f..00000000000 --- a/arch/s390/include/asm/resource.h +++ /dev/null @@ -1,15 +0,0 @@ -/* - * include/asm-s390/resource.h - * - * S390 version - * - * Derived from "include/asm-i386/resources.h" - */ - -#ifndef _S390_RESOURCE_H -#define _S390_RESOURCE_H - -#include <asm-generic/resource.h> - -#endif - diff --git a/arch/s390/include/asm/runtime_instr.h b/arch/s390/include/asm/runtime_instr.h new file mode 100644 index 00000000000..830da737ff8 --- /dev/null +++ b/arch/s390/include/asm/runtime_instr.h @@ -0,0 +1,98 @@ +#ifndef _RUNTIME_INSTR_H +#define _RUNTIME_INSTR_H + +#define S390_RUNTIME_INSTR_START 0x1 +#define S390_RUNTIME_INSTR_STOP 0x2 + +struct runtime_instr_cb { + __u64 buf_current; + __u64 buf_origin; + __u64 buf_limit; + + __u32 valid : 1; + __u32 pstate : 1; + __u32 pstate_set_buf : 1; + __u32 home_space : 1; + __u32 altered : 1; + __u32 : 3; + __u32 pstate_sample : 1; + __u32 sstate_sample : 1; + __u32 pstate_collect : 1; + __u32 sstate_collect : 1; + __u32 : 1; + __u32 halted_int : 1; + __u32 int_requested : 1; + __u32 buffer_full_int : 1; + __u32 key : 4; + __u32 : 9; + __u32 rgs : 3; + + __u32 mode : 4; + __u32 next : 1; + __u32 mae : 1; + __u32 : 2; + __u32 call_type_br : 1; + __u32 return_type_br : 1; + __u32 other_type_br : 1; + __u32 bc_other_type : 1; + __u32 emit : 1; + __u32 tx_abort : 1; + __u32 : 2; + __u32 bp_xn : 1; + __u32 bp_xt : 1; + __u32 bp_ti : 1; + __u32 bp_ni : 1; + __u32 suppr_y : 1; + __u32 suppr_z : 1; + + __u32 dc_miss_extra : 1; + __u32 lat_lev_ignore : 1; + __u32 ic_lat_lev : 4; + __u32 dc_lat_lev : 4; + + __u64 reserved1; + __u64 scaling_factor; + __u64 rsic; + __u64 reserved2; +} __packed __aligned(8); + +extern struct runtime_instr_cb runtime_instr_empty_cb; + +static inline void load_runtime_instr_cb(struct runtime_instr_cb *cb) +{ + asm volatile(".insn rsy,0xeb0000000060,0,0,%0" /* LRIC */ + : : "Q" (*cb)); +} + +static inline void store_runtime_instr_cb(struct runtime_instr_cb *cb) +{ + asm volatile(".insn rsy,0xeb0000000061,0,0,%0" /* STRIC */ + : "=Q" (*cb) : : "cc"); +} + +static inline void save_ri_cb(struct runtime_instr_cb *cb_prev) +{ +#ifdef CONFIG_64BIT + if (cb_prev) + store_runtime_instr_cb(cb_prev); +#endif +} + +static inline void restore_ri_cb(struct runtime_instr_cb *cb_next, + struct runtime_instr_cb *cb_prev) +{ +#ifdef CONFIG_64BIT + if (cb_next) + load_runtime_instr_cb(cb_next); + else if (cb_prev) + load_runtime_instr_cb(&runtime_instr_empty_cb); +#endif +} + +#ifdef CONFIG_64BIT +extern void exit_thread_runtime_instr(void); +#else +static inline void exit_thread_runtime_instr(void) { } +#endif + +#endif /* _RUNTIME_INSTR_H */ diff --git a/arch/s390/include/asm/rwsem.h b/arch/s390/include/asm/rwsem.h index d0eb4653ceb..487f9b64efb 100644 --- a/arch/s390/include/asm/rwsem.h +++ b/arch/s390/include/asm/rwsem.h @@ -2,10 +2,8 @@ #define _S390_RWSEM_H /* - * include/asm-s390/rwsem.h - * * S390 version - * Copyright (C) 2002 IBM Deutschland Entwicklung GmbH, IBM Corporation + * Copyright IBM Corp. 2002 * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com) * * Based on asm-alpha/semaphore.h and asm-i386/rwsem.h @@ -41,19 +39,17 @@ #error "please don't include asm/rwsem.h directly, use linux/rwsem.h instead" #endif -#ifdef __KERNEL__ - -#ifndef __s390x__ +#ifndef CONFIG_64BIT #define RWSEM_UNLOCKED_VALUE 0x00000000 #define RWSEM_ACTIVE_BIAS 0x00000001 #define RWSEM_ACTIVE_MASK 0x0000ffff #define RWSEM_WAITING_BIAS (-0x00010000) -#else /* __s390x__ */ +#else /* CONFIG_64BIT */ #define RWSEM_UNLOCKED_VALUE 0x0000000000000000L #define RWSEM_ACTIVE_BIAS 0x0000000000000001L #define RWSEM_ACTIVE_MASK 0x00000000ffffffffL #define RWSEM_WAITING_BIAS (-0x0000000100000000L) -#endif /* __s390x__ */ +#endif /* CONFIG_64BIT */ #define RWSEM_ACTIVE_READ_BIAS RWSEM_ACTIVE_BIAS #define RWSEM_ACTIVE_WRITE_BIAS (RWSEM_WAITING_BIAS + RWSEM_ACTIVE_BIAS) @@ -65,19 +61,19 @@ static inline void __down_read(struct rw_semaphore *sem) signed long old, new; asm volatile( -#ifndef __s390x__ +#ifndef CONFIG_64BIT " l %0,%2\n" "0: lr %1,%0\n" " ahi %1,%4\n" " cs %0,%1,%2\n" " jl 0b" -#else /* __s390x__ */ +#else /* CONFIG_64BIT */ " lg %0,%2\n" "0: lgr %1,%0\n" " aghi %1,%4\n" " csg %0,%1,%2\n" " jl 0b" -#endif /* __s390x__ */ +#endif /* CONFIG_64BIT */ : "=&d" (old), "=&d" (new), "=Q" (sem->count) : "Q" (sem->count), "i" (RWSEM_ACTIVE_READ_BIAS) : "cc", "memory"); @@ -93,7 +89,7 @@ static inline int __down_read_trylock(struct rw_semaphore *sem) signed long old, new; asm volatile( -#ifndef __s390x__ +#ifndef CONFIG_64BIT " l %0,%2\n" "0: ltr %1,%0\n" " jm 1f\n" @@ -101,7 +97,7 @@ static inline int __down_read_trylock(struct rw_semaphore *sem) " cs %0,%1,%2\n" " jl 0b\n" "1:" -#else /* __s390x__ */ +#else /* CONFIG_64BIT */ " lg %0,%2\n" "0: ltgr %1,%0\n" " jm 1f\n" @@ -109,7 +105,7 @@ static inline int __down_read_trylock(struct rw_semaphore *sem) " csg %0,%1,%2\n" " jl 0b\n" "1:" -#endif /* __s390x__ */ +#endif /* CONFIG_64BIT */ : "=&d" (old), "=&d" (new), "=Q" (sem->count) : "Q" (sem->count), "i" (RWSEM_ACTIVE_READ_BIAS) : "cc", "memory"); @@ -125,19 +121,19 @@ static inline void __down_write_nested(struct rw_semaphore *sem, int subclass) tmp = RWSEM_ACTIVE_WRITE_BIAS; asm volatile( -#ifndef __s390x__ +#ifndef CONFIG_64BIT " l %0,%2\n" "0: lr %1,%0\n" " a %1,%4\n" " cs %0,%1,%2\n" " jl 0b" -#else /* __s390x__ */ +#else /* CONFIG_64BIT */ " lg %0,%2\n" "0: lgr %1,%0\n" " ag %1,%4\n" " csg %0,%1,%2\n" " jl 0b" -#endif /* __s390x__ */ +#endif /* CONFIG_64BIT */ : "=&d" (old), "=&d" (new), "=Q" (sem->count) : "Q" (sem->count), "m" (tmp) : "cc", "memory"); @@ -158,19 +154,19 @@ static inline int __down_write_trylock(struct rw_semaphore *sem) signed long old; asm volatile( -#ifndef __s390x__ +#ifndef CONFIG_64BIT " l %0,%1\n" "0: ltr %0,%0\n" " jnz 1f\n" " cs %0,%3,%1\n" " jl 0b\n" -#else /* __s390x__ */ +#else /* CONFIG_64BIT */ " lg %0,%1\n" "0: ltgr %0,%0\n" " jnz 1f\n" " csg %0,%3,%1\n" " jl 0b\n" -#endif /* __s390x__ */ +#endif /* CONFIG_64BIT */ "1:" : "=&d" (old), "=Q" (sem->count) : "Q" (sem->count), "d" (RWSEM_ACTIVE_WRITE_BIAS) @@ -186,19 +182,19 @@ static inline void __up_read(struct rw_semaphore *sem) signed long old, new; asm volatile( -#ifndef __s390x__ +#ifndef CONFIG_64BIT " l %0,%2\n" "0: lr %1,%0\n" " ahi %1,%4\n" " cs %0,%1,%2\n" " jl 0b" -#else /* __s390x__ */ +#else /* CONFIG_64BIT */ " lg %0,%2\n" "0: lgr %1,%0\n" " aghi %1,%4\n" " csg %0,%1,%2\n" " jl 0b" -#endif /* __s390x__ */ +#endif /* CONFIG_64BIT */ : "=&d" (old), "=&d" (new), "=Q" (sem->count) : "Q" (sem->count), "i" (-RWSEM_ACTIVE_READ_BIAS) : "cc", "memory"); @@ -216,19 +212,19 @@ static inline void __up_write(struct rw_semaphore *sem) tmp = -RWSEM_ACTIVE_WRITE_BIAS; asm volatile( -#ifndef __s390x__ +#ifndef CONFIG_64BIT " l %0,%2\n" "0: lr %1,%0\n" " a %1,%4\n" " cs %0,%1,%2\n" " jl 0b" -#else /* __s390x__ */ +#else /* CONFIG_64BIT */ " lg %0,%2\n" "0: lgr %1,%0\n" " ag %1,%4\n" " csg %0,%1,%2\n" " jl 0b" -#endif /* __s390x__ */ +#endif /* CONFIG_64BIT */ : "=&d" (old), "=&d" (new), "=Q" (sem->count) : "Q" (sem->count), "m" (tmp) : "cc", "memory"); @@ -246,19 +242,19 @@ static inline void __downgrade_write(struct rw_semaphore *sem) tmp = -RWSEM_WAITING_BIAS; asm volatile( -#ifndef __s390x__ +#ifndef CONFIG_64BIT " l %0,%2\n" "0: lr %1,%0\n" " a %1,%4\n" " cs %0,%1,%2\n" " jl 0b" -#else /* __s390x__ */ +#else /* CONFIG_64BIT */ " lg %0,%2\n" "0: lgr %1,%0\n" " ag %1,%4\n" " csg %0,%1,%2\n" " jl 0b" -#endif /* __s390x__ */ +#endif /* CONFIG_64BIT */ : "=&d" (old), "=&d" (new), "=Q" (sem->count) : "Q" (sem->count), "m" (tmp) : "cc", "memory"); @@ -274,19 +270,19 @@ static inline void rwsem_atomic_add(long delta, struct rw_semaphore *sem) signed long old, new; asm volatile( -#ifndef __s390x__ +#ifndef CONFIG_64BIT " l %0,%2\n" "0: lr %1,%0\n" " ar %1,%4\n" " cs %0,%1,%2\n" " jl 0b" -#else /* __s390x__ */ +#else /* CONFIG_64BIT */ " lg %0,%2\n" "0: lgr %1,%0\n" " agr %1,%4\n" " csg %0,%1,%2\n" " jl 0b" -#endif /* __s390x__ */ +#endif /* CONFIG_64BIT */ : "=&d" (old), "=&d" (new), "=Q" (sem->count) : "Q" (sem->count), "d" (delta) : "cc", "memory"); @@ -300,24 +296,23 @@ static inline long rwsem_atomic_update(long delta, struct rw_semaphore *sem) signed long old, new; asm volatile( -#ifndef __s390x__ +#ifndef CONFIG_64BIT " l %0,%2\n" "0: lr %1,%0\n" " ar %1,%4\n" " cs %0,%1,%2\n" " jl 0b" -#else /* __s390x__ */ +#else /* CONFIG_64BIT */ " lg %0,%2\n" "0: lgr %1,%0\n" " agr %1,%4\n" " csg %0,%1,%2\n" " jl 0b" -#endif /* __s390x__ */ +#endif /* CONFIG_64BIT */ : "=&d" (old), "=&d" (new), "=Q" (sem->count) : "Q" (sem->count), "d" (delta) : "cc", "memory"); return new; } -#endif /* __KERNEL__ */ #endif /* _S390_RWSEM_H */ diff --git a/arch/s390/include/asm/schid.h b/arch/s390/include/asm/schid.h index 3e4d401b4e4..40b47dfa9d6 100644 --- a/arch/s390/include/asm/schid.h +++ b/arch/s390/include/asm/schid.h @@ -1,19 +1,8 @@ #ifndef ASM_SCHID_H #define ASM_SCHID_H -#include <linux/types.h> - -struct subchannel_id { - __u32 cssid : 8; - __u32 : 4; - __u32 m : 1; - __u32 ssid : 2; - __u32 one : 1; - __u32 sch_no : 16; -} __attribute__ ((packed, aligned(4))); - -#ifdef __KERNEL__ #include <linux/string.h> +#include <uapi/asm/schid.h> /* Helper function for sane state of pre-allocated subchannel_id. */ static inline void @@ -29,6 +18,4 @@ schid_equal(struct subchannel_id *schid1, struct subchannel_id *schid2) return !memcmp(schid1, schid2, sizeof(struct subchannel_id)); } -#endif /* __KERNEL__ */ - #endif /* ASM_SCHID_H */ diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h index fed7bee650a..1aba89b53cb 100644 --- a/arch/s390/include/asm/sclp.h +++ b/arch/s390/include/asm/sclp.h @@ -1,6 +1,4 @@ /* - * include/asm-s390/sclp.h - * * Copyright IBM Corp. 2007 * Author(s): Heiko Carstens <heiko.carstens@de.ibm.com> */ @@ -10,6 +8,7 @@ #include <linux/types.h> #include <asm/chpid.h> +#include <asm/cpu.h> #define SCLP_CHP_INFO_MASK_SIZE 32 @@ -29,7 +28,11 @@ struct sclp_ipl_info { struct sclp_cpu_entry { u8 address; - u8 reserved0[13]; + u8 reserved0[2]; + u8 : 3; + u8 siif : 1; + u8 : 4; + u8 reserved2[10]; u8 type; u8 reserved1; } __attribute__((packed)); @@ -39,20 +42,30 @@ struct sclp_cpu_info { unsigned int standby; unsigned int combined; int has_cpu_type; - struct sclp_cpu_entry cpu[255]; + struct sclp_cpu_entry cpu[MAX_CPU_ADDRESS + 1]; }; int sclp_get_cpu_info(struct sclp_cpu_info *info); int sclp_cpu_configure(u8 cpu); int sclp_cpu_deconfigure(u8 cpu); -void sclp_facilities_detect(void); unsigned long long sclp_get_rnmax(void); unsigned long long sclp_get_rzm(void); +unsigned int sclp_get_max_cpu(void); int sclp_sdias_blk_count(void); int sclp_sdias_copy(void *dest, int blk_num, int nr_blks); int sclp_chp_configure(struct chp_id chpid); int sclp_chp_deconfigure(struct chp_id chpid); int sclp_chp_read_info(struct sclp_chp_info *info); void sclp_get_ipl_info(struct sclp_ipl_info *info); +bool __init sclp_has_linemode(void); +bool __init sclp_has_vt220(void); +bool sclp_has_sprp(void); +int sclp_pci_configure(u32 fid); +int sclp_pci_deconfigure(u32 fid); +int memcpy_hsa(void *dest, unsigned long src, size_t count, int mode); +unsigned long sclp_get_hsa_size(void); +void sclp_early_detect(void); +int sclp_has_siif(void); +unsigned int sclp_get_ibc(void); #endif /* _ASM_S390_SCLP_H */ diff --git a/arch/s390/include/asm/scsw.h b/arch/s390/include/asm/scsw.h index de389cb54d2..4af99cdaddf 100644 --- a/arch/s390/include/asm/scsw.h +++ b/arch/s390/include/asm/scsw.h @@ -1,7 +1,7 @@ /* * Helper functions for scsw access. * - * Copyright IBM Corp. 2008,2009 + * Copyright IBM Corp. 2008, 2012 * Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com> */ @@ -9,7 +9,7 @@ #define _ASM_S390_SCSW_H_ #include <linux/types.h> -#include <asm/chsc.h> +#include <asm/css_chars.h> #include <asm/cio.h> /** @@ -100,14 +100,46 @@ struct tm_scsw { } __attribute__ ((packed)); /** + * struct eadm_scsw - subchannel status word for eadm subchannels + * @key: subchannel key + * @eswf: esw format + * @cc: deferred condition code + * @ectl: extended control + * @fctl: function control + * @actl: activity control + * @stctl: status control + * @aob: AOB address + * @dstat: device status + * @cstat: subchannel status + */ +struct eadm_scsw { + u32 key:4; + u32:1; + u32 eswf:1; + u32 cc:2; + u32:6; + u32 ectl:1; + u32:2; + u32 fctl:3; + u32 actl:7; + u32 stctl:5; + u32 aob; + u32 dstat:8; + u32 cstat:8; + u32:16; +} __packed; + +/** * union scsw - subchannel status word * @cmd: command-mode SCSW * @tm: transport-mode SCSW + * @eadm: eadm SCSW */ union scsw { struct cmd_scsw cmd; struct tm_scsw tm; -} __attribute__ ((packed)); + struct eadm_scsw eadm; +} __packed; #define SCSW_FCTL_CLEAR_FUNC 0x1 #define SCSW_FCTL_HALT_FUNC 0x2 diff --git a/arch/s390/include/asm/sembuf.h b/arch/s390/include/asm/sembuf.h deleted file mode 100644 index 32626b0cac4..00000000000 --- a/arch/s390/include/asm/sembuf.h +++ /dev/null @@ -1,29 +0,0 @@ -#ifndef _S390_SEMBUF_H -#define _S390_SEMBUF_H - -/* - * The semid64_ds structure for S/390 architecture. - * Note extra padding because this structure is passed back and forth - * between kernel and user space. - * - * Pad space is left for: - * - 64-bit time_t to solve y2038 problem (for !__s390x__) - * - 2 miscellaneous 32-bit values - */ - -struct semid64_ds { - struct ipc64_perm sem_perm; /* permissions .. see ipc.h */ - __kernel_time_t sem_otime; /* last semop time */ -#ifndef __s390x__ - unsigned long __unused1; -#endif /* ! __s390x__ */ - __kernel_time_t sem_ctime; /* last change time */ -#ifndef __s390x__ - unsigned long __unused2; -#endif /* ! __s390x__ */ - unsigned long sem_nsems; /* no. of semaphores in array */ - unsigned long __unused3; - unsigned long __unused4; -}; - -#endif /* _S390_SEMBUF_H */ diff --git a/arch/s390/include/asm/serial.h b/arch/s390/include/asm/serial.h new file mode 100644 index 00000000000..5b3e48ef534 --- /dev/null +++ b/arch/s390/include/asm/serial.h @@ -0,0 +1,6 @@ +#ifndef _ASM_S390_SERIAL_H +#define _ASM_S390_SERIAL_H + +#define BASE_BAUD 0 + +#endif /* _ASM_S390_SERIAL_H */ diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h index 097183c7040..089a49814c5 100644 --- a/arch/s390/include/asm/setup.h +++ b/arch/s390/include/asm/setup.h @@ -1,68 +1,40 @@ /* - * include/asm-s390/setup.h - * * S390 version - * Copyright IBM Corp. 1999,2010 + * Copyright IBM Corp. 1999, 2010 */ - #ifndef _ASM_S390_SETUP_H #define _ASM_S390_SETUP_H -#define COMMAND_LINE_SIZE 4096 - -#define ARCH_COMMAND_LINE_SIZE 896 +#include <uapi/asm/setup.h> -#ifdef __KERNEL__ #define PARMAREA 0x10400 -#define MEMORY_CHUNKS 256 #ifndef __ASSEMBLY__ #include <asm/lowcore.h> #include <asm/types.h> -#ifndef __s390x__ +#ifndef CONFIG_64BIT #define IPL_DEVICE (*(unsigned long *) (0x10404)) #define INITRD_START (*(unsigned long *) (0x1040C)) #define INITRD_SIZE (*(unsigned long *) (0x10414)) #define OLDMEM_BASE (*(unsigned long *) (0x1041C)) #define OLDMEM_SIZE (*(unsigned long *) (0x10424)) -#else /* __s390x__ */ +#else /* CONFIG_64BIT */ #define IPL_DEVICE (*(unsigned long *) (0x10400)) #define INITRD_START (*(unsigned long *) (0x10408)) #define INITRD_SIZE (*(unsigned long *) (0x10410)) #define OLDMEM_BASE (*(unsigned long *) (0x10418)) #define OLDMEM_SIZE (*(unsigned long *) (0x10420)) -#endif /* __s390x__ */ +#endif /* CONFIG_64BIT */ #define COMMAND_LINE ((char *) (0x10480)) -#define CHUNK_READ_WRITE 0 -#define CHUNK_READ_ONLY 1 -#define CHUNK_OLDMEM 4 -#define CHUNK_CRASHK 5 - -struct mem_chunk { - unsigned long addr; - unsigned long size; - int type; -}; - -extern struct mem_chunk memory_chunk[]; -extern unsigned long real_memory_size; extern int memory_end_set; extern unsigned long memory_end; +extern unsigned long max_physmem_end; -void detect_memory_layout(struct mem_chunk chunk[]); -void create_mem_hole(struct mem_chunk memory_chunk[], unsigned long addr, - unsigned long size, int type); - -#define PRIMARY_SPACE_MODE 0 -#define ACCESS_REGISTER_MODE 1 -#define SECONDARY_SPACE_MODE 2 -#define HOME_SPACE_MODE 3 - -extern unsigned int user_mode; +extern void detect_memory_memblock(void); /* * Machine features detected in head.S @@ -70,54 +42,58 @@ extern unsigned int user_mode; #define MACHINE_FLAG_VM (1UL << 0) #define MACHINE_FLAG_IEEE (1UL << 1) -#define MACHINE_FLAG_CSP (1UL << 3) -#define MACHINE_FLAG_MVPG (1UL << 4) -#define MACHINE_FLAG_DIAG44 (1UL << 5) -#define MACHINE_FLAG_IDTE (1UL << 6) -#define MACHINE_FLAG_DIAG9C (1UL << 7) -#define MACHINE_FLAG_MVCOS (1UL << 8) -#define MACHINE_FLAG_KVM (1UL << 9) -#define MACHINE_FLAG_HPAGE (1UL << 10) -#define MACHINE_FLAG_PFMF (1UL << 11) +#define MACHINE_FLAG_CSP (1UL << 2) +#define MACHINE_FLAG_MVPG (1UL << 3) +#define MACHINE_FLAG_DIAG44 (1UL << 4) +#define MACHINE_FLAG_IDTE (1UL << 5) +#define MACHINE_FLAG_DIAG9C (1UL << 6) +#define MACHINE_FLAG_KVM (1UL << 8) +#define MACHINE_FLAG_ESOP (1UL << 9) +#define MACHINE_FLAG_EDAT1 (1UL << 10) +#define MACHINE_FLAG_EDAT2 (1UL << 11) #define MACHINE_FLAG_LPAR (1UL << 12) -#define MACHINE_FLAG_SPP (1UL << 13) +#define MACHINE_FLAG_LPP (1UL << 13) #define MACHINE_FLAG_TOPOLOGY (1UL << 14) -#define MACHINE_FLAG_STCKF (1UL << 15) +#define MACHINE_FLAG_TE (1UL << 15) +#define MACHINE_FLAG_RRBM (1UL << 16) +#define MACHINE_FLAG_TLB_LC (1UL << 17) #define MACHINE_IS_VM (S390_lowcore.machine_flags & MACHINE_FLAG_VM) #define MACHINE_IS_KVM (S390_lowcore.machine_flags & MACHINE_FLAG_KVM) #define MACHINE_IS_LPAR (S390_lowcore.machine_flags & MACHINE_FLAG_LPAR) #define MACHINE_HAS_DIAG9C (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG9C) +#define MACHINE_HAS_ESOP (S390_lowcore.machine_flags & MACHINE_FLAG_ESOP) +#define MACHINE_HAS_PFMF MACHINE_HAS_EDAT1 +#define MACHINE_HAS_HPAGE MACHINE_HAS_EDAT1 -#ifndef __s390x__ +#ifndef CONFIG_64BIT #define MACHINE_HAS_IEEE (S390_lowcore.machine_flags & MACHINE_FLAG_IEEE) #define MACHINE_HAS_CSP (S390_lowcore.machine_flags & MACHINE_FLAG_CSP) #define MACHINE_HAS_IDTE (0) #define MACHINE_HAS_DIAG44 (1) #define MACHINE_HAS_MVPG (S390_lowcore.machine_flags & MACHINE_FLAG_MVPG) -#define MACHINE_HAS_MVCOS (0) -#define MACHINE_HAS_HPAGE (0) -#define MACHINE_HAS_PFMF (0) -#define MACHINE_HAS_SPP (0) +#define MACHINE_HAS_EDAT1 (0) +#define MACHINE_HAS_EDAT2 (0) +#define MACHINE_HAS_LPP (0) #define MACHINE_HAS_TOPOLOGY (0) -#define MACHINE_HAS_STCKF (0) -#else /* __s390x__ */ +#define MACHINE_HAS_TE (0) +#define MACHINE_HAS_RRBM (0) +#define MACHINE_HAS_TLB_LC (0) +#else /* CONFIG_64BIT */ #define MACHINE_HAS_IEEE (1) #define MACHINE_HAS_CSP (1) #define MACHINE_HAS_IDTE (S390_lowcore.machine_flags & MACHINE_FLAG_IDTE) #define MACHINE_HAS_DIAG44 (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG44) #define MACHINE_HAS_MVPG (1) -#define MACHINE_HAS_MVCOS (S390_lowcore.machine_flags & MACHINE_FLAG_MVCOS) -#define MACHINE_HAS_HPAGE (S390_lowcore.machine_flags & MACHINE_FLAG_HPAGE) -#define MACHINE_HAS_PFMF (S390_lowcore.machine_flags & MACHINE_FLAG_PFMF) -#define MACHINE_HAS_SPP (S390_lowcore.machine_flags & MACHINE_FLAG_SPP) +#define MACHINE_HAS_EDAT1 (S390_lowcore.machine_flags & MACHINE_FLAG_EDAT1) +#define MACHINE_HAS_EDAT2 (S390_lowcore.machine_flags & MACHINE_FLAG_EDAT2) +#define MACHINE_HAS_LPP (S390_lowcore.machine_flags & MACHINE_FLAG_LPP) #define MACHINE_HAS_TOPOLOGY (S390_lowcore.machine_flags & MACHINE_FLAG_TOPOLOGY) -#define MACHINE_HAS_STCKF (S390_lowcore.machine_flags & MACHINE_FLAG_STCKF) -#endif /* __s390x__ */ - -#define ZFCPDUMP_HSA_SIZE (32UL<<20) -#define ZFCPDUMP_HSA_SIZE_MAX (64UL<<20) +#define MACHINE_HAS_TE (S390_lowcore.machine_flags & MACHINE_FLAG_TE) +#define MACHINE_HAS_RRBM (S390_lowcore.machine_flags & MACHINE_FLAG_RRBM) +#define MACHINE_HAS_TLB_LC (S390_lowcore.machine_flags & MACHINE_FLAG_TLB_LC) +#endif /* CONFIG_64BIT */ /* * Console mode. Override with conmode= @@ -140,23 +116,36 @@ extern char vmpoff_cmd[]; #define NSS_NAME_SIZE 8 extern char kernel_nss_name[]; +#ifdef CONFIG_PFAULT +extern int pfault_init(void); +extern void pfault_fini(void); +#else /* CONFIG_PFAULT */ +#define pfault_init() ({-1;}) +#define pfault_fini() do { } while (0) +#endif /* CONFIG_PFAULT */ + +extern void cmma_init(void); + +extern void (*_machine_restart)(char *command); +extern void (*_machine_halt)(void); +extern void (*_machine_power_off)(void); + #else /* __ASSEMBLY__ */ -#ifndef __s390x__ +#ifndef CONFIG_64BIT #define IPL_DEVICE 0x10404 #define INITRD_START 0x1040C #define INITRD_SIZE 0x10414 #define OLDMEM_BASE 0x1041C #define OLDMEM_SIZE 0x10424 -#else /* __s390x__ */ +#else /* CONFIG_64BIT */ #define IPL_DEVICE 0x10400 #define INITRD_START 0x10408 #define INITRD_SIZE 0x10410 #define OLDMEM_BASE 0x10418 #define OLDMEM_SIZE 0x10420 -#endif /* __s390x__ */ +#endif /* CONFIG_64BIT */ #define COMMAND_LINE 0x10480 #endif /* __ASSEMBLY__ */ -#endif /* __KERNEL__ */ #endif /* _ASM_S390_SETUP_H */ diff --git a/arch/s390/include/asm/sfp-util.h b/arch/s390/include/asm/sfp-util.h index ca3f8814e36..5959bfb3b69 100644 --- a/arch/s390/include/asm/sfp-util.h +++ b/arch/s390/include/asm/sfp-util.h @@ -51,7 +51,7 @@ wl = __wl; \ }) -#ifdef __s390x__ +#ifdef CONFIG_64BIT #define udiv_qrnnd(q, r, n1, n0, d) \ do { unsigned long __n; \ unsigned int __r, __d; \ diff --git a/arch/s390/include/asm/shmbuf.h b/arch/s390/include/asm/shmbuf.h deleted file mode 100644 index eed2e280ce3..00000000000 --- a/arch/s390/include/asm/shmbuf.h +++ /dev/null @@ -1,48 +0,0 @@ -#ifndef _S390_SHMBUF_H -#define _S390_SHMBUF_H - -/* - * The shmid64_ds structure for S/390 architecture. - * Note extra padding because this structure is passed back and forth - * between kernel and user space. - * - * Pad space is left for: - * - 64-bit time_t to solve y2038 problem (for !__s390x__) - * - 2 miscellaneous 32-bit values - */ - -struct shmid64_ds { - struct ipc64_perm shm_perm; /* operation perms */ - size_t shm_segsz; /* size of segment (bytes) */ - __kernel_time_t shm_atime; /* last attach time */ -#ifndef __s390x__ - unsigned long __unused1; -#endif /* ! __s390x__ */ - __kernel_time_t shm_dtime; /* last detach time */ -#ifndef __s390x__ - unsigned long __unused2; -#endif /* ! __s390x__ */ - __kernel_time_t shm_ctime; /* last change time */ -#ifndef __s390x__ - unsigned long __unused3; -#endif /* ! __s390x__ */ - __kernel_pid_t shm_cpid; /* pid of creator */ - __kernel_pid_t shm_lpid; /* pid of last operator */ - unsigned long shm_nattch; /* no. of current attaches */ - unsigned long __unused4; - unsigned long __unused5; -}; - -struct shminfo64 { - unsigned long shmmax; - unsigned long shmmin; - unsigned long shmmni; - unsigned long shmseg; - unsigned long shmall; - unsigned long __unused1; - unsigned long __unused2; - unsigned long __unused3; - unsigned long __unused4; -}; - -#endif /* _S390_SHMBUF_H */ diff --git a/arch/s390/include/asm/shmparam.h b/arch/s390/include/asm/shmparam.h index c2e0c0508e7..e985182738f 100644 --- a/arch/s390/include/asm/shmparam.h +++ b/arch/s390/include/asm/shmparam.h @@ -1,6 +1,4 @@ /* - * include/asm-s390/shmparam.h - * * S390 version * * Derived from "include/asm-i386/shmparam.h" diff --git a/arch/s390/include/asm/sigcontext.h b/arch/s390/include/asm/sigcontext.h deleted file mode 100644 index aeb6e0b1332..00000000000 --- a/arch/s390/include/asm/sigcontext.h +++ /dev/null @@ -1,71 +0,0 @@ -/* - * include/asm-s390/sigcontext.h - * - * S390 version - * Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation - */ - -#ifndef _ASM_S390_SIGCONTEXT_H -#define _ASM_S390_SIGCONTEXT_H - -#include <linux/compiler.h> - -#define __NUM_GPRS 16 -#define __NUM_FPRS 16 -#define __NUM_ACRS 16 - -#ifndef __s390x__ - -/* Has to be at least _NSIG_WORDS from asm/signal.h */ -#define _SIGCONTEXT_NSIG 64 -#define _SIGCONTEXT_NSIG_BPW 32 -/* Size of stack frame allocated when calling signal handler. */ -#define __SIGNAL_FRAMESIZE 96 - -#else /* __s390x__ */ - -/* Has to be at least _NSIG_WORDS from asm/signal.h */ -#define _SIGCONTEXT_NSIG 64 -#define _SIGCONTEXT_NSIG_BPW 64 -/* Size of stack frame allocated when calling signal handler. */ -#define __SIGNAL_FRAMESIZE 160 - -#endif /* __s390x__ */ - -#define _SIGCONTEXT_NSIG_WORDS (_SIGCONTEXT_NSIG / _SIGCONTEXT_NSIG_BPW) -#define _SIGMASK_COPY_SIZE (sizeof(unsigned long)*_SIGCONTEXT_NSIG_WORDS) - -typedef struct -{ - unsigned long mask; - unsigned long addr; -} __attribute__ ((aligned(8))) _psw_t; - -typedef struct -{ - _psw_t psw; - unsigned long gprs[__NUM_GPRS]; - unsigned int acrs[__NUM_ACRS]; -} _s390_regs_common; - -typedef struct -{ - unsigned int fpc; - double fprs[__NUM_FPRS]; -} _s390_fp_regs; - -typedef struct -{ - _s390_regs_common regs; - _s390_fp_regs fpregs; -} _sigregs; - -struct sigcontext -{ - unsigned long oldmask[_SIGCONTEXT_NSIG_WORDS]; - _sigregs __user *sregs; -}; - - -#endif - diff --git a/arch/s390/include/asm/siginfo.h b/arch/s390/include/asm/siginfo.h deleted file mode 100644 index e0ff1ab054b..00000000000 --- a/arch/s390/include/asm/siginfo.h +++ /dev/null @@ -1,18 +0,0 @@ -/* - * include/asm-s390/siginfo.h - * - * S390 version - * - * Derived from "include/asm-i386/siginfo.h" - */ - -#ifndef _S390_SIGINFO_H -#define _S390_SIGINFO_H - -#ifdef __s390x__ -#define __ARCH_SI_PREAMBLE_SIZE (4 * sizeof(int)) -#endif - -#include <asm-generic/siginfo.h> - -#endif diff --git a/arch/s390/include/asm/signal.h b/arch/s390/include/asm/signal.h index cdf5cb2fe03..abf9e573594 100644 --- a/arch/s390/include/asm/signal.h +++ b/arch/s390/include/asm/signal.h @@ -1,22 +1,13 @@ /* - * include/asm-s390/signal.h - * * S390 version * * Derived from "include/asm-i386/signal.h" */ - #ifndef _ASMS390_SIGNAL_H #define _ASMS390_SIGNAL_H -#include <linux/types.h> -#include <linux/time.h> +#include <uapi/asm/signal.h> -/* Avoid too many header ordering problems. */ -struct siginfo; -struct pt_regs; - -#ifdef __KERNEL__ /* Most things should be clean enough to redefine this at will, if care is taken to make libc match. */ #include <asm/sigcontext.h> @@ -30,143 +21,5 @@ typedef struct { unsigned long sig[_NSIG_WORDS]; } sigset_t; -#else -/* Here we must cater to libcs that poke about in kernel headers. */ - -#define NSIG 32 -typedef unsigned long sigset_t; - -#endif /* __KERNEL__ */ - -#define SIGHUP 1 -#define SIGINT 2 -#define SIGQUIT 3 -#define SIGILL 4 -#define SIGTRAP 5 -#define SIGABRT 6 -#define SIGIOT 6 -#define SIGBUS 7 -#define SIGFPE 8 -#define SIGKILL 9 -#define SIGUSR1 10 -#define SIGSEGV 11 -#define SIGUSR2 12 -#define SIGPIPE 13 -#define SIGALRM 14 -#define SIGTERM 15 -#define SIGSTKFLT 16 -#define SIGCHLD 17 -#define SIGCONT 18 -#define SIGSTOP 19 -#define SIGTSTP 20 -#define SIGTTIN 21 -#define SIGTTOU 22 -#define SIGURG 23 -#define SIGXCPU 24 -#define SIGXFSZ 25 -#define SIGVTALRM 26 -#define SIGPROF 27 -#define SIGWINCH 28 -#define SIGIO 29 -#define SIGPOLL SIGIO -/* -#define SIGLOST 29 -*/ -#define SIGPWR 30 -#define SIGSYS 31 -#define SIGUNUSED 31 - -/* These should not be considered constants from userland. */ -#define SIGRTMIN 32 -#define SIGRTMAX _NSIG - -/* - * SA_FLAGS values: - * - * SA_ONSTACK indicates that a registered stack_t will be used. - * SA_RESTART flag to get restarting signals (which were the default long ago) - * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop. - * SA_RESETHAND clears the handler when the signal is delivered. - * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies. - * SA_NODEFER prevents the current signal from being masked in the handler. - * - * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single - * Unix names RESETHAND and NODEFER respectively. - */ -#define SA_NOCLDSTOP 0x00000001 -#define SA_NOCLDWAIT 0x00000002 -#define SA_SIGINFO 0x00000004 -#define SA_ONSTACK 0x08000000 -#define SA_RESTART 0x10000000 -#define SA_NODEFER 0x40000000 -#define SA_RESETHAND 0x80000000 - -#define SA_NOMASK SA_NODEFER -#define SA_ONESHOT SA_RESETHAND - -#define SA_RESTORER 0x04000000 - -/* - * sigaltstack controls - */ -#define SS_ONSTACK 1 -#define SS_DISABLE 2 - -#define MINSIGSTKSZ 2048 -#define SIGSTKSZ 8192 - -#include <asm-generic/signal-defs.h> - -#ifdef __KERNEL__ -struct old_sigaction { - __sighandler_t sa_handler; - old_sigset_t sa_mask; - unsigned long sa_flags; - void (*sa_restorer)(void); -}; - -struct sigaction { - __sighandler_t sa_handler; - unsigned long sa_flags; - void (*sa_restorer)(void); - sigset_t sa_mask; /* mask last for extensibility */ -}; - -struct k_sigaction { - struct sigaction sa; -}; - -#define ptrace_signal_deliver(regs, cookie) do { } while (0) - -#else -/* Here we must cater to libcs that poke about in kernel headers. */ - -struct sigaction { - union { - __sighandler_t _sa_handler; - void (*_sa_sigaction)(int, struct siginfo *, void *); - } _u; -#ifndef __s390x__ /* lovely */ - sigset_t sa_mask; - unsigned long sa_flags; - void (*sa_restorer)(void); -#else /* __s390x__ */ - unsigned long sa_flags; - void (*sa_restorer)(void); - sigset_t sa_mask; -#endif /* __s390x__ */ -}; - -#define sa_handler _u._sa_handler -#define sa_sigaction _u._sa_sigaction - -#endif /* __KERNEL__ */ - -typedef struct sigaltstack { - void __user *ss_sp; - int ss_flags; - size_t ss_size; -} stack_t; - - +#define __ARCH_HAS_SA_RESTORER #endif diff --git a/arch/s390/include/asm/sigp.h b/arch/s390/include/asm/sigp.h index 7040b8567cd..bf9c823d402 100644 --- a/arch/s390/include/asm/sigp.h +++ b/arch/s390/include/asm/sigp.h @@ -1,132 +1,53 @@ -/* - * Routines and structures for signalling other processors. - * - * Copyright IBM Corp. 1999,2010 - * Author(s): Denis Joseph Barrow, - * Martin Schwidefsky <schwidefsky@de.ibm.com>, - * Heiko Carstens <heiko.carstens@de.ibm.com>, - */ - -#ifndef __ASM_SIGP_H -#define __ASM_SIGP_H - -#include <asm/system.h> - -/* Get real cpu address from logical cpu number. */ -extern unsigned short __cpu_logical_map[]; - -static inline int cpu_logical_map(int cpu) -{ -#ifdef CONFIG_SMP - return __cpu_logical_map[cpu]; -#else - return stap(); -#endif -} - -enum { - sigp_sense = 1, - sigp_external_call = 2, - sigp_emergency_signal = 3, - sigp_start = 4, - sigp_stop = 5, - sigp_restart = 6, - sigp_stop_and_store_status = 9, - sigp_initial_cpu_reset = 11, - sigp_cpu_reset = 12, - sigp_set_prefix = 13, - sigp_store_status_at_address = 14, - sigp_store_extended_status_at_address = 15, - sigp_set_architecture = 18, - sigp_conditional_emergency_signal = 19, - sigp_sense_running = 21, -}; - -enum { - sigp_order_code_accepted = 0, - sigp_status_stored = 1, - sigp_busy = 2, - sigp_not_operational = 3, -}; - -/* - * Definitions for external call. - */ -enum { - ec_schedule = 0, - ec_call_function, - ec_call_function_single, - ec_stop_cpu, -}; - -/* - * Signal processor. - */ -static inline int raw_sigp(u16 cpu, int order) -{ - register unsigned long reg1 asm ("1") = 0; - int ccode; - - asm volatile( - " sigp %1,%2,0(%3)\n" - " ipm %0\n" - " srl %0,28\n" - : "=d" (ccode) - : "d" (reg1), "d" (cpu), - "a" (order) : "cc" , "memory"); - return ccode; -} - -/* - * Signal processor with parameter. - */ -static inline int raw_sigp_p(u32 parameter, u16 cpu, int order) -{ - register unsigned int reg1 asm ("1") = parameter; - int ccode; - - asm volatile( - " sigp %1,%2,0(%3)\n" - " ipm %0\n" - " srl %0,28\n" - : "=d" (ccode) - : "d" (reg1), "d" (cpu), - "a" (order) : "cc" , "memory"); - return ccode; -} - -/* - * Signal processor with parameter and return status. - */ -static inline int raw_sigp_ps(u32 *status, u32 parm, u16 cpu, int order) +#ifndef __S390_ASM_SIGP_H +#define __S390_ASM_SIGP_H + +/* SIGP order codes */ +#define SIGP_SENSE 1 +#define SIGP_EXTERNAL_CALL 2 +#define SIGP_EMERGENCY_SIGNAL 3 +#define SIGP_START 4 +#define SIGP_STOP 5 +#define SIGP_RESTART 6 +#define SIGP_STOP_AND_STORE_STATUS 9 +#define SIGP_INITIAL_CPU_RESET 11 +#define SIGP_SET_PREFIX 13 +#define SIGP_STORE_STATUS_AT_ADDRESS 14 +#define SIGP_SET_ARCHITECTURE 18 +#define SIGP_COND_EMERGENCY_SIGNAL 19 +#define SIGP_SENSE_RUNNING 21 + +/* SIGP condition codes */ +#define SIGP_CC_ORDER_CODE_ACCEPTED 0 +#define SIGP_CC_STATUS_STORED 1 +#define SIGP_CC_BUSY 2 +#define SIGP_CC_NOT_OPERATIONAL 3 + +/* SIGP cpu status bits */ + +#define SIGP_STATUS_CHECK_STOP 0x00000010UL +#define SIGP_STATUS_STOPPED 0x00000040UL +#define SIGP_STATUS_EXT_CALL_PENDING 0x00000080UL +#define SIGP_STATUS_INVALID_PARAMETER 0x00000100UL +#define SIGP_STATUS_INCORRECT_STATE 0x00000200UL +#define SIGP_STATUS_NOT_RUNNING 0x00000400UL + +#ifndef __ASSEMBLY__ + +static inline int __pcpu_sigp(u16 addr, u8 order, u32 parm, u32 *status) { register unsigned int reg1 asm ("1") = parm; - int ccode; + int cc; asm volatile( " sigp %1,%2,0(%3)\n" " ipm %0\n" " srl %0,28\n" - : "=d" (ccode), "+d" (reg1) - : "d" (cpu), "a" (order) - : "cc" , "memory"); - *status = reg1; - return ccode; + : "=d" (cc), "+d" (reg1) : "d" (addr), "a" (order) : "cc"); + if (status && cc == 1) + *status = reg1; + return cc; } -static inline int sigp(int cpu, int order) -{ - return raw_sigp(cpu_logical_map(cpu), order); -} - -static inline int sigp_p(u32 parameter, int cpu, int order) -{ - return raw_sigp_p(parameter, cpu_logical_map(cpu), order); -} - -static inline int sigp_ps(u32 *status, u32 parm, int cpu, int order) -{ - return raw_sigp_ps(status, parm, cpu_logical_map(cpu), order); -} +#endif /* __ASSEMBLY__ */ -#endif /* __ASM_SIGP_H */ +#endif /* __S390_ASM_SIGP_H */ diff --git a/arch/s390/include/asm/smp.h b/arch/s390/include/asm/smp.h index c32e9123b40..4f1307962a9 100644 --- a/arch/s390/include/asm/smp.h +++ b/arch/s390/include/asm/smp.h @@ -1,5 +1,5 @@ /* - * Copyright IBM Corp. 1999,2009 + * Copyright IBM Corp. 1999, 2012 * Author(s): Denis Joseph Barrow, * Martin Schwidefsky <schwidefsky@de.ibm.com>, * Heiko Carstens <heiko.carstens@de.ibm.com>, @@ -7,74 +7,69 @@ #ifndef __ASM_SMP_H #define __ASM_SMP_H -#ifdef CONFIG_SMP - -#include <asm/system.h> #include <asm/sigp.h> -extern void machine_restart_smp(char *); -extern void machine_halt_smp(void); -extern void machine_power_off_smp(void); +#ifdef CONFIG_SMP -#define raw_smp_processor_id() (S390_lowcore.cpu_nr) +#include <asm/lowcore.h> -extern int __cpu_disable (void); -extern void __cpu_die (unsigned int cpu); -extern int __cpu_up (unsigned int cpu); +#define raw_smp_processor_id() (S390_lowcore.cpu_nr) extern struct mutex smp_cpu_state_mutex; +extern int __cpu_up(unsigned int cpu, struct task_struct *tidle); + extern void arch_send_call_function_single_ipi(int cpu); extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); -extern struct save_area *zfcpdump_save_areas[NR_CPUS + 1]; - -extern void smp_switch_to_ipl_cpu(void (*func)(void *), void *); -extern void smp_switch_to_cpu(void (*)(void *), void *, unsigned long sp, - int from, int to); -extern void smp_restart_with_online_cpu(void); -extern void smp_restart_cpu(void); +extern void smp_call_online_cpu(void (*func)(void *), void *); +extern void smp_call_ipl_cpu(void (*func)(void *), void *); -/* - * returns 1 if (virtual) cpu is scheduled - * returns 0 otherwise - */ -static inline int smp_vcpu_scheduled(int cpu) -{ - u32 status; - - switch (sigp_ps(&status, 0, cpu, sigp_sense_running)) { - case sigp_status_stored: - /* Check for running status */ - if (status & 0x400) - return 0; - break; - case sigp_not_operational: - return 0; - default: - break; - } - return 1; -} +extern int smp_find_processor_id(u16 address); +extern int smp_store_status(int cpu); +extern int smp_vcpu_scheduled(int cpu); +extern void smp_yield_cpu(int cpu); +extern void smp_yield(void); +extern void smp_cpu_set_polarization(int cpu, int val); +extern int smp_cpu_get_polarization(int cpu); +extern void smp_fill_possible_mask(void); #else /* CONFIG_SMP */ -static inline void smp_switch_to_ipl_cpu(void (*func)(void *), void *data) +static inline void smp_call_ipl_cpu(void (*func)(void *), void *data) { func(data); } -static inline void smp_restart_with_online_cpu(void) +static inline void smp_call_online_cpu(void (*func)(void *), void *data) { + func(data); } -#define smp_vcpu_scheduled (1) +static inline int smp_find_processor_id(u16 address) { return 0; } +static inline int smp_store_status(int cpu) { return 0; } +static inline int smp_vcpu_scheduled(int cpu) { return 1; } +static inline void smp_yield_cpu(int cpu) { } +static inline void smp_yield(void) { } +static inline void smp_fill_possible_mask(void) { } #endif /* CONFIG_SMP */ +static inline void smp_stop_cpu(void) +{ + u16 pcpu = stap(); + + for (;;) { + __pcpu_sigp(pcpu, SIGP_STOP, 0, NULL); + cpu_relax(); + } +} + #ifdef CONFIG_HOTPLUG_CPU extern int smp_rescan_cpus(void); extern void __noreturn cpu_die(void); +extern void __cpu_die(unsigned int cpu); +extern int __cpu_disable(void); #else static inline int smp_rescan_cpus(void) { return 0; } static inline void cpu_die(void) { } diff --git a/arch/s390/include/asm/socket.h b/arch/s390/include/asm/socket.h deleted file mode 100644 index 67b5c1b14b5..00000000000 --- a/arch/s390/include/asm/socket.h +++ /dev/null @@ -1,76 +0,0 @@ -/* - * include/asm-s390/socket.h - * - * S390 version - * - * Derived from "include/asm-i386/socket.h" - */ - -#ifndef _ASM_SOCKET_H -#define _ASM_SOCKET_H - -#include <asm/sockios.h> - -/* For setsockopt(2) */ -#define SOL_SOCKET 1 - -#define SO_DEBUG 1 -#define SO_REUSEADDR 2 -#define SO_TYPE 3 -#define SO_ERROR 4 -#define SO_DONTROUTE 5 -#define SO_BROADCAST 6 -#define SO_SNDBUF 7 -#define SO_RCVBUF 8 -#define SO_SNDBUFFORCE 32 -#define SO_RCVBUFFORCE 33 -#define SO_KEEPALIVE 9 -#define SO_OOBINLINE 10 -#define SO_NO_CHECK 11 -#define SO_PRIORITY 12 -#define SO_LINGER 13 -#define SO_BSDCOMPAT 14 -/* To add :#define SO_REUSEPORT 15 */ -#define SO_PASSCRED 16 -#define SO_PEERCRED 17 -#define SO_RCVLOWAT 18 -#define SO_SNDLOWAT 19 -#define SO_RCVTIMEO 20 -#define SO_SNDTIMEO 21 - -/* Security levels - as per NRL IPv6 - don't actually do anything */ -#define SO_SECURITY_AUTHENTICATION 22 -#define SO_SECURITY_ENCRYPTION_TRANSPORT 23 -#define SO_SECURITY_ENCRYPTION_NETWORK 24 - -#define SO_BINDTODEVICE 25 - -/* Socket filtering */ -#define SO_ATTACH_FILTER 26 -#define SO_DETACH_FILTER 27 - -#define SO_PEERNAME 28 -#define SO_TIMESTAMP 29 -#define SCM_TIMESTAMP SO_TIMESTAMP - -#define SO_ACCEPTCONN 30 - -#define SO_PEERSEC 31 -#define SO_PASSSEC 34 -#define SO_TIMESTAMPNS 35 -#define SCM_TIMESTAMPNS SO_TIMESTAMPNS - -#define SO_MARK 36 - -#define SO_TIMESTAMPING 37 -#define SCM_TIMESTAMPING SO_TIMESTAMPING - -#define SO_PROTOCOL 38 -#define SO_DOMAIN 39 - -#define SO_RXQ_OVFL 40 - -#define SO_WIFI_STATUS 41 -#define SCM_WIFI_STATUS SO_WIFI_STATUS - -#endif /* _ASM_SOCKET_H */ diff --git a/arch/s390/include/asm/sockios.h b/arch/s390/include/asm/sockios.h deleted file mode 100644 index 6f60eee7324..00000000000 --- a/arch/s390/include/asm/sockios.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef _ASM_S390_SOCKIOS_H -#define _ASM_S390_SOCKIOS_H - -#include <asm-generic/sockios.h> - -#endif diff --git a/arch/s390/include/asm/sparsemem.h b/arch/s390/include/asm/sparsemem.h index 0fb34027d3f..a60d085ddb4 100644 --- a/arch/s390/include/asm/sparsemem.h +++ b/arch/s390/include/asm/sparsemem.h @@ -4,13 +4,11 @@ #ifdef CONFIG_64BIT #define SECTION_SIZE_BITS 28 -#define MAX_PHYSADDR_BITS 46 #define MAX_PHYSMEM_BITS 46 #else #define SECTION_SIZE_BITS 25 -#define MAX_PHYSADDR_BITS 31 #define MAX_PHYSMEM_BITS 31 #endif /* CONFIG_64BIT */ diff --git a/arch/s390/include/asm/spinlock.h b/arch/s390/include/asm/spinlock.h index fd94dfec8d0..96879f7ad6d 100644 --- a/arch/s390/include/asm/spinlock.h +++ b/arch/s390/include/asm/spinlock.h @@ -1,8 +1,6 @@ /* - * include/asm-s390/spinlock.h - * * S390 version - * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation + * Copyright IBM Corp. 1999 * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com) * * Derived from "include/asm-i386/spinlock.h" @@ -13,18 +11,21 @@ #include <linux/smp.h> +#define SPINLOCK_LOCKVAL (S390_lowcore.spinlock_lockval) + extern int spin_retry; static inline int -_raw_compare_and_swap(volatile unsigned int *lock, - unsigned int old, unsigned int new) +_raw_compare_and_swap(unsigned int *lock, unsigned int old, unsigned int new) { + unsigned int old_expected = old; + asm volatile( " cs %0,%3,%1" : "=d" (old), "=Q" (*lock) : "0" (old), "d" (new), "Q" (*lock) : "cc", "memory" ); - return old; + return old == old_expected; } /* @@ -36,52 +37,69 @@ _raw_compare_and_swap(volatile unsigned int *lock, * (the type definitions are in asm/spinlock_types.h) */ -#define arch_spin_is_locked(x) ((x)->owner_cpu != 0) -#define arch_spin_unlock_wait(lock) \ - do { while (arch_spin_is_locked(lock)) \ - arch_spin_relax(lock); } while (0) +void arch_spin_lock_wait(arch_spinlock_t *); +int arch_spin_trylock_retry(arch_spinlock_t *); +void arch_spin_relax(arch_spinlock_t *); +void arch_spin_lock_wait_flags(arch_spinlock_t *, unsigned long flags); -extern void arch_spin_lock_wait(arch_spinlock_t *); -extern void arch_spin_lock_wait_flags(arch_spinlock_t *, unsigned long flags); -extern int arch_spin_trylock_retry(arch_spinlock_t *); -extern void arch_spin_relax(arch_spinlock_t *lock); +static inline u32 arch_spin_lockval(int cpu) +{ + return ~cpu; +} -static inline void arch_spin_lock(arch_spinlock_t *lp) +static inline int arch_spin_value_unlocked(arch_spinlock_t lock) { - int old; + return lock.lock == 0; +} - old = _raw_compare_and_swap(&lp->owner_cpu, 0, ~smp_processor_id()); - if (likely(old == 0)) - return; - arch_spin_lock_wait(lp); +static inline int arch_spin_is_locked(arch_spinlock_t *lp) +{ + return ACCESS_ONCE(lp->lock) != 0; } -static inline void arch_spin_lock_flags(arch_spinlock_t *lp, - unsigned long flags) +static inline int arch_spin_trylock_once(arch_spinlock_t *lp) { - int old; + barrier(); + return likely(arch_spin_value_unlocked(*lp) && + _raw_compare_and_swap(&lp->lock, 0, SPINLOCK_LOCKVAL)); +} - old = _raw_compare_and_swap(&lp->owner_cpu, 0, ~smp_processor_id()); - if (likely(old == 0)) - return; - arch_spin_lock_wait_flags(lp, flags); +static inline int arch_spin_tryrelease_once(arch_spinlock_t *lp) +{ + return _raw_compare_and_swap(&lp->lock, SPINLOCK_LOCKVAL, 0); } -static inline int arch_spin_trylock(arch_spinlock_t *lp) +static inline void arch_spin_lock(arch_spinlock_t *lp) +{ + if (!arch_spin_trylock_once(lp)) + arch_spin_lock_wait(lp); +} + +static inline void arch_spin_lock_flags(arch_spinlock_t *lp, + unsigned long flags) { - int old; + if (!arch_spin_trylock_once(lp)) + arch_spin_lock_wait_flags(lp, flags); +} - old = _raw_compare_and_swap(&lp->owner_cpu, 0, ~smp_processor_id()); - if (likely(old == 0)) - return 1; - return arch_spin_trylock_retry(lp); +static inline int arch_spin_trylock(arch_spinlock_t *lp) +{ + if (!arch_spin_trylock_once(lp)) + return arch_spin_trylock_retry(lp); + return 1; } static inline void arch_spin_unlock(arch_spinlock_t *lp) { - _raw_compare_and_swap(&lp->owner_cpu, lp->owner_cpu, 0); + arch_spin_tryrelease_once(lp); } - + +static inline void arch_spin_unlock_wait(arch_spinlock_t *lock) +{ + while (arch_spin_is_locked(lock)) + arch_spin_relax(lock); +} + /* * Read-write spinlocks, allowing multiple readers * but only one writer. @@ -112,42 +130,50 @@ extern void _raw_write_lock_wait(arch_rwlock_t *lp); extern void _raw_write_lock_wait_flags(arch_rwlock_t *lp, unsigned long flags); extern int _raw_write_trylock_retry(arch_rwlock_t *lp); +static inline int arch_read_trylock_once(arch_rwlock_t *rw) +{ + unsigned int old = ACCESS_ONCE(rw->lock); + return likely((int) old >= 0 && + _raw_compare_and_swap(&rw->lock, old, old + 1)); +} + +static inline int arch_write_trylock_once(arch_rwlock_t *rw) +{ + unsigned int old = ACCESS_ONCE(rw->lock); + return likely(old == 0 && + _raw_compare_and_swap(&rw->lock, 0, 0x80000000)); +} + static inline void arch_read_lock(arch_rwlock_t *rw) { - unsigned int old; - old = rw->lock & 0x7fffffffU; - if (_raw_compare_and_swap(&rw->lock, old, old + 1) != old) + if (!arch_read_trylock_once(rw)) _raw_read_lock_wait(rw); } static inline void arch_read_lock_flags(arch_rwlock_t *rw, unsigned long flags) { - unsigned int old; - old = rw->lock & 0x7fffffffU; - if (_raw_compare_and_swap(&rw->lock, old, old + 1) != old) + if (!arch_read_trylock_once(rw)) _raw_read_lock_wait_flags(rw, flags); } static inline void arch_read_unlock(arch_rwlock_t *rw) { - unsigned int old, cmp; + unsigned int old; - old = rw->lock; do { - cmp = old; - old = _raw_compare_and_swap(&rw->lock, old, old - 1); - } while (cmp != old); + old = ACCESS_ONCE(rw->lock); + } while (!_raw_compare_and_swap(&rw->lock, old, old - 1)); } static inline void arch_write_lock(arch_rwlock_t *rw) { - if (unlikely(_raw_compare_and_swap(&rw->lock, 0, 0x80000000) != 0)) + if (!arch_write_trylock_once(rw)) _raw_write_lock_wait(rw); } static inline void arch_write_lock_flags(arch_rwlock_t *rw, unsigned long flags) { - if (unlikely(_raw_compare_and_swap(&rw->lock, 0, 0x80000000) != 0)) + if (!arch_write_trylock_once(rw)) _raw_write_lock_wait_flags(rw, flags); } @@ -158,18 +184,16 @@ static inline void arch_write_unlock(arch_rwlock_t *rw) static inline int arch_read_trylock(arch_rwlock_t *rw) { - unsigned int old; - old = rw->lock & 0x7fffffffU; - if (likely(_raw_compare_and_swap(&rw->lock, old, old + 1) == old)) - return 1; - return _raw_read_trylock_retry(rw); + if (!arch_read_trylock_once(rw)) + return _raw_read_trylock_retry(rw); + return 1; } static inline int arch_write_trylock(arch_rwlock_t *rw) { - if (likely(_raw_compare_and_swap(&rw->lock, 0, 0x80000000) == 0)) - return 1; - return _raw_write_trylock_retry(rw); + if (!arch_write_trylock_once(rw)) + return _raw_write_trylock_retry(rw); + return 1; } #define arch_read_relax(lock) cpu_relax() diff --git a/arch/s390/include/asm/spinlock_types.h b/arch/s390/include/asm/spinlock_types.h index 9c76656a0af..b2cd6ff7c2c 100644 --- a/arch/s390/include/asm/spinlock_types.h +++ b/arch/s390/include/asm/spinlock_types.h @@ -6,13 +6,13 @@ #endif typedef struct { - volatile unsigned int owner_cpu; + unsigned int lock; } __attribute__ ((aligned (4))) arch_spinlock_t; -#define __ARCH_SPIN_LOCK_UNLOCKED { 0 } +#define __ARCH_SPIN_LOCK_UNLOCKED { .lock = 0, } typedef struct { - volatile unsigned int lock; + unsigned int lock; } arch_rwlock_t; #define __ARCH_RW_LOCK_UNLOCKED { 0 } diff --git a/arch/s390/include/asm/stat.h b/arch/s390/include/asm/stat.h deleted file mode 100644 index d92959eebb6..00000000000 --- a/arch/s390/include/asm/stat.h +++ /dev/null @@ -1,105 +0,0 @@ -/* - * include/asm-s390/stat.h - * - * S390 version - * - * Derived from "include/asm-i386/stat.h" - */ - -#ifndef _S390_STAT_H -#define _S390_STAT_H - -#ifndef __s390x__ -struct __old_kernel_stat { - unsigned short st_dev; - unsigned short st_ino; - unsigned short st_mode; - unsigned short st_nlink; - unsigned short st_uid; - unsigned short st_gid; - unsigned short st_rdev; - unsigned long st_size; - unsigned long st_atime; - unsigned long st_mtime; - unsigned long st_ctime; -}; - -struct stat { - unsigned short st_dev; - unsigned short __pad1; - unsigned long st_ino; - unsigned short st_mode; - unsigned short st_nlink; - unsigned short st_uid; - unsigned short st_gid; - unsigned short st_rdev; - unsigned short __pad2; - unsigned long st_size; - unsigned long st_blksize; - unsigned long st_blocks; - unsigned long st_atime; - unsigned long st_atime_nsec; - unsigned long st_mtime; - unsigned long st_mtime_nsec; - unsigned long st_ctime; - unsigned long st_ctime_nsec; - unsigned long __unused4; - unsigned long __unused5; -}; - -/* This matches struct stat64 in glibc2.1, hence the absolutely - * insane amounts of padding around dev_t's. - */ -struct stat64 { - unsigned long long st_dev; - unsigned int __pad1; -#define STAT64_HAS_BROKEN_ST_INO 1 - unsigned long __st_ino; - unsigned int st_mode; - unsigned int st_nlink; - unsigned long st_uid; - unsigned long st_gid; - unsigned long long st_rdev; - unsigned int __pad3; - long long st_size; - unsigned long st_blksize; - unsigned char __pad4[4]; - unsigned long __pad5; /* future possible st_blocks high bits */ - unsigned long st_blocks; /* Number 512-byte blocks allocated. */ - unsigned long st_atime; - unsigned long st_atime_nsec; - unsigned long st_mtime; - unsigned long st_mtime_nsec; - unsigned long st_ctime; - unsigned long st_ctime_nsec; /* will be high 32 bits of ctime someday */ - unsigned long long st_ino; -}; - -#else /* __s390x__ */ - -struct stat { - unsigned long st_dev; - unsigned long st_ino; - unsigned long st_nlink; - unsigned int st_mode; - unsigned int st_uid; - unsigned int st_gid; - unsigned int __pad1; - unsigned long st_rdev; - unsigned long st_size; - unsigned long st_atime; - unsigned long st_atime_nsec; - unsigned long st_mtime; - unsigned long st_mtime_nsec; - unsigned long st_ctime; - unsigned long st_ctime_nsec; - unsigned long st_blksize; - long st_blocks; - unsigned long __unused[3]; -}; - -#endif /* __s390x__ */ - -#define STAT_HAVE_NSEC 1 - -#endif diff --git a/arch/s390/include/asm/statfs.h b/arch/s390/include/asm/statfs.h deleted file mode 100644 index 3be7fbd406c..00000000000 --- a/arch/s390/include/asm/statfs.h +++ /dev/null @@ -1,71 +0,0 @@ -/* - * include/asm-s390/statfs.h - * - * S390 version - * - * Derived from "include/asm-i386/statfs.h" - */ - -#ifndef _S390_STATFS_H -#define _S390_STATFS_H - -#ifndef __s390x__ -#include <asm-generic/statfs.h> -#else -/* - * We can't use <asm-generic/statfs.h> because in 64-bit mode - * we mix ints of different sizes in our struct statfs. - */ - -#ifndef __KERNEL_STRICT_NAMES -#include <linux/types.h> -typedef __kernel_fsid_t fsid_t; -#endif - -struct statfs { - int f_type; - int f_bsize; - long f_blocks; - long f_bfree; - long f_bavail; - long f_files; - long f_ffree; - __kernel_fsid_t f_fsid; - int f_namelen; - int f_frsize; - int f_flags; - int f_spare[4]; -}; - -struct statfs64 { - int f_type; - int f_bsize; - long f_blocks; - long f_bfree; - long f_bavail; - long f_files; - long f_ffree; - __kernel_fsid_t f_fsid; - int f_namelen; - int f_frsize; - int f_flags; - int f_spare[4]; -}; - -struct compat_statfs64 { - __u32 f_type; - __u32 f_bsize; - __u64 f_blocks; - __u64 f_bfree; - __u64 f_bavail; - __u64 f_files; - __u64 f_ffree; - __kernel_fsid_t f_fsid; - __u32 f_namelen; - __u32 f_frsize; - __u32 f_flags; - __u32 f_spare[4]; -}; - -#endif /* __s390x__ */ -#endif diff --git a/arch/s390/include/asm/string.h b/arch/s390/include/asm/string.h index cd0241db5a4..7e2dcd7c57e 100644 --- a/arch/s390/include/asm/string.h +++ b/arch/s390/include/asm/string.h @@ -1,16 +1,12 @@ /* - * include/asm-s390/string.h - * * S390 version - * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation + * Copyright IBM Corp. 1999 * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com), */ #ifndef _S390_STRING_H_ #define _S390_STRING_H_ -#ifdef __KERNEL__ - #ifndef _LINUX_TYPES_H #include <linux/types.h> #endif @@ -100,7 +96,6 @@ static inline char *strcat(char *dst, const char *src) static inline char *strcpy(char *dst, const char *src) { -#if __GNUC__ < 4 register int r0 asm("0") = 0; char *ret = dst; @@ -110,14 +105,10 @@ static inline char *strcpy(char *dst, const char *src) : "+&a" (dst), "+&a" (src) : "d" (r0) : "cc", "memory"); return ret; -#else - return __builtin_strcpy(dst, src); -#endif } static inline size_t strlen(const char *s) { -#if __GNUC__ < 4 register unsigned long r0 asm("0") = 0; const char *tmp = s; @@ -126,9 +117,6 @@ static inline size_t strlen(const char *s) " jo 0b" : "+d" (r0), "+a" (tmp) : : "cc"); return r0 - (unsigned long) s; -#else - return __builtin_strlen(s); -#endif } static inline size_t strnlen(const char * s, size_t n) @@ -152,6 +140,4 @@ size_t strlen(const char *s); size_t strnlen(const char * s, size_t n); #endif /* !IN_ARCH_STRING_C */ -#endif /* __KERNEL__ */ - #endif /* __S390_STRING_H_ */ diff --git a/arch/s390/include/asm/swab.h b/arch/s390/include/asm/swab.h deleted file mode 100644 index 6bdee21c077..00000000000 --- a/arch/s390/include/asm/swab.h +++ /dev/null @@ -1,91 +0,0 @@ -#ifndef _S390_SWAB_H -#define _S390_SWAB_H - -/* - * include/asm-s390/swab.h - * - * S390 version - * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation - * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com) - */ - -#include <linux/types.h> - -#ifndef __s390x__ -# define __SWAB_64_THRU_32__ -#endif - -#ifdef __s390x__ -static inline __u64 __arch_swab64p(const __u64 *x) -{ - __u64 result; - - asm volatile("lrvg %0,%1" : "=d" (result) : "m" (*x)); - return result; -} -#define __arch_swab64p __arch_swab64p - -static inline __u64 __arch_swab64(__u64 x) -{ - __u64 result; - - asm volatile("lrvgr %0,%1" : "=d" (result) : "d" (x)); - return result; -} -#define __arch_swab64 __arch_swab64 - -static inline void __arch_swab64s(__u64 *x) -{ - *x = __arch_swab64p(x); -} -#define __arch_swab64s __arch_swab64s -#endif /* __s390x__ */ - -static inline __u32 __arch_swab32p(const __u32 *x) -{ - __u32 result; - - asm volatile( -#ifndef __s390x__ - " icm %0,8,%O1+3(%R1)\n" - " icm %0,4,%O1+2(%R1)\n" - " icm %0,2,%O1+1(%R1)\n" - " ic %0,%1" - : "=&d" (result) : "Q" (*x) : "cc"); -#else /* __s390x__ */ - " lrv %0,%1" - : "=d" (result) : "m" (*x)); -#endif /* __s390x__ */ - return result; -} -#define __arch_swab32p __arch_swab32p - -#ifdef __s390x__ -static inline __u32 __arch_swab32(__u32 x) -{ - __u32 result; - - asm volatile("lrvr %0,%1" : "=d" (result) : "d" (x)); - return result; -} -#define __arch_swab32 __arch_swab32 -#endif /* __s390x__ */ - -static inline __u16 __arch_swab16p(const __u16 *x) -{ - __u16 result; - - asm volatile( -#ifndef __s390x__ - " icm %0,2,%O+1(%R1)\n" - " ic %0,%1\n" - : "=&d" (result) : "Q" (*x) : "cc"); -#else /* __s390x__ */ - " lrvh %0,%1" - : "=d" (result) : "m" (*x)); -#endif /* __s390x__ */ - return result; -} -#define __arch_swab16p __arch_swab16p - -#endif /* _S390_SWAB_H */ diff --git a/arch/s390/include/asm/switch_to.h b/arch/s390/include/asm/switch_to.h new file mode 100644 index 00000000000..18ea9e3f814 --- /dev/null +++ b/arch/s390/include/asm/switch_to.h @@ -0,0 +1,137 @@ +/* + * Copyright IBM Corp. 1999, 2009 + * + * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com> + */ + +#ifndef __ASM_SWITCH_TO_H +#define __ASM_SWITCH_TO_H + +#include <linux/thread_info.h> +#include <asm/ptrace.h> + +extern struct task_struct *__switch_to(void *, void *); +extern void update_cr_regs(struct task_struct *task); + +static inline int test_fp_ctl(u32 fpc) +{ + u32 orig_fpc; + int rc; + + if (!MACHINE_HAS_IEEE) + return 0; + + asm volatile( + " efpc %1\n" + " sfpc %2\n" + "0: sfpc %1\n" + " la %0,0\n" + "1:\n" + EX_TABLE(0b,1b) + : "=d" (rc), "=d" (orig_fpc) + : "d" (fpc), "0" (-EINVAL)); + return rc; +} + +static inline void save_fp_ctl(u32 *fpc) +{ + if (!MACHINE_HAS_IEEE) + return; + + asm volatile( + " stfpc %0\n" + : "+Q" (*fpc)); +} + +static inline int restore_fp_ctl(u32 *fpc) +{ + int rc; + + if (!MACHINE_HAS_IEEE) + return 0; + + asm volatile( + " lfpc %1\n" + "0: la %0,0\n" + "1:\n" + EX_TABLE(0b,1b) + : "=d" (rc) : "Q" (*fpc), "0" (-EINVAL)); + return rc; +} + +static inline void save_fp_regs(freg_t *fprs) +{ + asm volatile("std 0,%0" : "=Q" (fprs[0])); + asm volatile("std 2,%0" : "=Q" (fprs[2])); + asm volatile("std 4,%0" : "=Q" (fprs[4])); + asm volatile("std 6,%0" : "=Q" (fprs[6])); + if (!MACHINE_HAS_IEEE) + return; + asm volatile("std 1,%0" : "=Q" (fprs[1])); + asm volatile("std 3,%0" : "=Q" (fprs[3])); + asm volatile("std 5,%0" : "=Q" (fprs[5])); + asm volatile("std 7,%0" : "=Q" (fprs[7])); + asm volatile("std 8,%0" : "=Q" (fprs[8])); + asm volatile("std 9,%0" : "=Q" (fprs[9])); + asm volatile("std 10,%0" : "=Q" (fprs[10])); + asm volatile("std 11,%0" : "=Q" (fprs[11])); + asm volatile("std 12,%0" : "=Q" (fprs[12])); + asm volatile("std 13,%0" : "=Q" (fprs[13])); + asm volatile("std 14,%0" : "=Q" (fprs[14])); + asm volatile("std 15,%0" : "=Q" (fprs[15])); +} + +static inline void restore_fp_regs(freg_t *fprs) +{ + asm volatile("ld 0,%0" : : "Q" (fprs[0])); + asm volatile("ld 2,%0" : : "Q" (fprs[2])); + asm volatile("ld 4,%0" : : "Q" (fprs[4])); + asm volatile("ld 6,%0" : : "Q" (fprs[6])); + if (!MACHINE_HAS_IEEE) + return; + asm volatile("ld 1,%0" : : "Q" (fprs[1])); + asm volatile("ld 3,%0" : : "Q" (fprs[3])); + asm volatile("ld 5,%0" : : "Q" (fprs[5])); + asm volatile("ld 7,%0" : : "Q" (fprs[7])); + asm volatile("ld 8,%0" : : "Q" (fprs[8])); + asm volatile("ld 9,%0" : : "Q" (fprs[9])); + asm volatile("ld 10,%0" : : "Q" (fprs[10])); + asm volatile("ld 11,%0" : : "Q" (fprs[11])); + asm volatile("ld 12,%0" : : "Q" (fprs[12])); + asm volatile("ld 13,%0" : : "Q" (fprs[13])); + asm volatile("ld 14,%0" : : "Q" (fprs[14])); + asm volatile("ld 15,%0" : : "Q" (fprs[15])); +} + +static inline void save_access_regs(unsigned int *acrs) +{ + typedef struct { int _[NUM_ACRS]; } acrstype; + + asm volatile("stam 0,15,%0" : "=Q" (*(acrstype *)acrs)); +} + +static inline void restore_access_regs(unsigned int *acrs) +{ + typedef struct { int _[NUM_ACRS]; } acrstype; + + asm volatile("lam 0,15,%0" : : "Q" (*(acrstype *)acrs)); +} + +#define switch_to(prev,next,last) do { \ + if (prev->mm) { \ + save_fp_ctl(&prev->thread.fp_regs.fpc); \ + save_fp_regs(prev->thread.fp_regs.fprs); \ + save_access_regs(&prev->thread.acrs[0]); \ + save_ri_cb(prev->thread.ri_cb); \ + } \ + if (next->mm) { \ + restore_fp_ctl(&next->thread.fp_regs.fpc); \ + restore_fp_regs(next->thread.fp_regs.fprs); \ + restore_access_regs(&next->thread.acrs[0]); \ + restore_ri_cb(next->thread.ri_cb, prev->thread.ri_cb); \ + update_cr_regs(next); \ + } \ + prev = __switch_to(prev,next); \ +} while (0) + +#endif /* __ASM_SWITCH_TO_H */ diff --git a/arch/s390/include/asm/syscall.h b/arch/s390/include/asm/syscall.h index fb214dd9b7e..abad78d5b10 100644 --- a/arch/s390/include/asm/syscall.h +++ b/arch/s390/include/asm/syscall.h @@ -12,6 +12,7 @@ #ifndef _ASM_SYSCALL_H #define _ASM_SYSCALL_H 1 +#include <uapi/linux/audit.h> #include <linux/sched.h> #include <linux/err.h> #include <asm/ptrace.h> @@ -22,11 +23,12 @@ * type here is what we want [need] for both 32 bit and 64 bit systems. */ extern const unsigned int sys_call_table[]; +extern const unsigned int sys_call_table_emu[]; static inline long syscall_get_nr(struct task_struct *task, struct pt_regs *regs) { - return test_tsk_thread_flag(task, TIF_SYSCALL) ? + return test_pt_regs_flag(regs, PIF_SYSCALL) ? (regs->int_code & 0xffff) : -1; } @@ -87,4 +89,12 @@ static inline void syscall_set_arguments(struct task_struct *task, regs->orig_gpr2 = args[0]; } +static inline int syscall_get_arch(void) +{ +#ifdef CONFIG_COMPAT + if (test_tsk_thread_flag(current, TIF_31BIT)) + return AUDIT_ARCH_S390; +#endif + return sizeof(long) == 8 ? AUDIT_ARCH_S390X : AUDIT_ARCH_S390; +} #endif /* _ASM_SYSCALL_H */ diff --git a/arch/s390/include/asm/sysinfo.h b/arch/s390/include/asm/sysinfo.h index 79d3d6e2e9c..f92428e459f 100644 --- a/arch/s390/include/asm/sysinfo.h +++ b/arch/s390/include/asm/sysinfo.h @@ -1,7 +1,7 @@ /* * definition for store system information stsi * - * Copyright IBM Corp. 2001,2008 + * Copyright IBM Corp. 2001, 2008 * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License (version 2 only) @@ -17,7 +17,10 @@ #include <asm/bitsperlong.h> struct sysinfo_1_1_1 { - unsigned short :16; + unsigned char p:1; + unsigned char :6; + unsigned char t:1; + unsigned char :8; unsigned char ccr; unsigned char cai; char reserved_0[28]; @@ -30,9 +33,14 @@ struct sysinfo_1_1_1 { char model[16]; char model_perm_cap[16]; char model_temp_cap[16]; - char model_cap_rating[4]; - char model_perm_cap_rating[4]; - char model_temp_cap_rating[4]; + unsigned int model_cap_rating; + unsigned int model_perm_cap_rating; + unsigned int model_temp_cap_rating; + unsigned char typepct[5]; + unsigned char reserved_2[3]; + unsigned int ncr; + unsigned int npr; + unsigned int ntr; }; struct sysinfo_1_2_1 { @@ -47,8 +55,9 @@ struct sysinfo_1_2_2 { char format; char reserved_0[1]; unsigned short acc_offset; - char reserved_1[24]; - unsigned int secondary_capability; + char reserved_1[20]; + unsigned int nominal_cap; + unsigned int secondary_cap; unsigned int capability; unsigned short cpus_total; unsigned short cpus_configured; @@ -109,6 +118,8 @@ struct sysinfo_3_2_2 { char reserved_544[3552]; }; +extern int topology_max_mnest; + #define TOPOLOGY_CPU_BITS 64 #define TOPOLOGY_NR_MAG 6 @@ -142,21 +153,7 @@ struct sysinfo_15_1_x { union topology_entry tle[0]; }; -static inline int stsi(void *sysinfo, int fc, int sel1, int sel2) -{ - register int r0 asm("0") = (fc << 28) | sel1; - register int r1 asm("1") = sel2; - - asm volatile( - " stsi 0(%2)\n" - "0: jz 2f\n" - "1: lhi %0,%3\n" - "2:\n" - EX_TABLE(0b, 1b) - : "+d" (r0) : "d" (r1), "a" (sysinfo), "K" (-ENOSYS) - : "cc", "memory"); - return r0; -} +int stsi(void *sysinfo, int fc, int sel1, int sel2); /* * Service level reporting interface. diff --git a/arch/s390/include/asm/system.h b/arch/s390/include/asm/system.h deleted file mode 100644 index d73cc6b6000..00000000000 --- a/arch/s390/include/asm/system.h +++ /dev/null @@ -1,281 +0,0 @@ -/* - * Copyright IBM Corp. 1999, 2009 - * - * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com> - */ - -#ifndef __ASM_SYSTEM_H -#define __ASM_SYSTEM_H - -#include <linux/kernel.h> -#include <linux/errno.h> -#include <asm/types.h> -#include <asm/ptrace.h> -#include <asm/setup.h> -#include <asm/processor.h> -#include <asm/lowcore.h> -#include <asm/cmpxchg.h> - -#ifdef __KERNEL__ - -struct task_struct; - -extern struct task_struct *__switch_to(void *, void *); -extern void update_per_regs(struct task_struct *task); - -static inline void save_fp_regs(s390_fp_regs *fpregs) -{ - asm volatile( - " std 0,%O0+8(%R0)\n" - " std 2,%O0+24(%R0)\n" - " std 4,%O0+40(%R0)\n" - " std 6,%O0+56(%R0)" - : "=Q" (*fpregs) : "Q" (*fpregs)); - if (!MACHINE_HAS_IEEE) - return; - asm volatile( - " stfpc %0\n" - " std 1,%O0+16(%R0)\n" - " std 3,%O0+32(%R0)\n" - " std 5,%O0+48(%R0)\n" - " std 7,%O0+64(%R0)\n" - " std 8,%O0+72(%R0)\n" - " std 9,%O0+80(%R0)\n" - " std 10,%O0+88(%R0)\n" - " std 11,%O0+96(%R0)\n" - " std 12,%O0+104(%R0)\n" - " std 13,%O0+112(%R0)\n" - " std 14,%O0+120(%R0)\n" - " std 15,%O0+128(%R0)\n" - : "=Q" (*fpregs) : "Q" (*fpregs)); -} - -static inline void restore_fp_regs(s390_fp_regs *fpregs) -{ - asm volatile( - " ld 0,%O0+8(%R0)\n" - " ld 2,%O0+24(%R0)\n" - " ld 4,%O0+40(%R0)\n" - " ld 6,%O0+56(%R0)" - : : "Q" (*fpregs)); - if (!MACHINE_HAS_IEEE) - return; - asm volatile( - " lfpc %0\n" - " ld 1,%O0+16(%R0)\n" - " ld 3,%O0+32(%R0)\n" - " ld 5,%O0+48(%R0)\n" - " ld 7,%O0+64(%R0)\n" - " ld 8,%O0+72(%R0)\n" - " ld 9,%O0+80(%R0)\n" - " ld 10,%O0+88(%R0)\n" - " ld 11,%O0+96(%R0)\n" - " ld 12,%O0+104(%R0)\n" - " ld 13,%O0+112(%R0)\n" - " ld 14,%O0+120(%R0)\n" - " ld 15,%O0+128(%R0)\n" - : : "Q" (*fpregs)); -} - -static inline void save_access_regs(unsigned int *acrs) -{ - asm volatile("stam 0,15,%0" : "=Q" (*acrs)); -} - -static inline void restore_access_regs(unsigned int *acrs) -{ - asm volatile("lam 0,15,%0" : : "Q" (*acrs)); -} - -#define switch_to(prev,next,last) do { \ - if (prev->mm) { \ - save_fp_regs(&prev->thread.fp_regs); \ - save_access_regs(&prev->thread.acrs[0]); \ - } \ - if (next->mm) { \ - restore_fp_regs(&next->thread.fp_regs); \ - restore_access_regs(&next->thread.acrs[0]); \ - update_per_regs(next); \ - } \ - prev = __switch_to(prev,next); \ -} while (0) - -extern void account_vtime(struct task_struct *, struct task_struct *); -extern void account_tick_vtime(struct task_struct *); - -#ifdef CONFIG_PFAULT -extern int pfault_init(void); -extern void pfault_fini(void); -#else /* CONFIG_PFAULT */ -#define pfault_init() ({-1;}) -#define pfault_fini() do { } while (0) -#endif /* CONFIG_PFAULT */ - -extern void cmma_init(void); -extern int memcpy_real(void *, void *, size_t); -extern void copy_to_absolute_zero(void *dest, void *src, size_t count); -extern int copy_to_user_real(void __user *dest, void *src, size_t count); -extern int copy_from_user_real(void *dest, void __user *src, size_t count); - -#define finish_arch_switch(prev) do { \ - set_fs(current->thread.mm_segment); \ - account_vtime(prev, current); \ -} while (0) - -#define nop() asm volatile("nop") - -/* - * Force strict CPU ordering. - * And yes, this is required on UP too when we're talking - * to devices. - * - * This is very similar to the ppc eieio/sync instruction in that is - * does a checkpoint syncronisation & makes sure that - * all memory ops have completed wrt other CPU's ( see 7-15 POP DJB ). - */ - -#define eieio() asm volatile("bcr 15,0" : : : "memory") -#define SYNC_OTHER_CORES(x) eieio() -#define mb() eieio() -#define rmb() eieio() -#define wmb() eieio() -#define read_barrier_depends() do { } while(0) -#define smp_mb() mb() -#define smp_rmb() rmb() -#define smp_wmb() wmb() -#define smp_read_barrier_depends() read_barrier_depends() -#define smp_mb__before_clear_bit() smp_mb() -#define smp_mb__after_clear_bit() smp_mb() - - -#define set_mb(var, value) do { var = value; mb(); } while (0) - -#ifdef __s390x__ - -#define __ctl_load(array, low, high) ({ \ - typedef struct { char _[sizeof(array)]; } addrtype; \ - asm volatile( \ - " lctlg %1,%2,%0\n" \ - : : "Q" (*(addrtype *)(&array)), \ - "i" (low), "i" (high)); \ - }) - -#define __ctl_store(array, low, high) ({ \ - typedef struct { char _[sizeof(array)]; } addrtype; \ - asm volatile( \ - " stctg %1,%2,%0\n" \ - : "=Q" (*(addrtype *)(&array)) \ - : "i" (low), "i" (high)); \ - }) - -#else /* __s390x__ */ - -#define __ctl_load(array, low, high) ({ \ - typedef struct { char _[sizeof(array)]; } addrtype; \ - asm volatile( \ - " lctl %1,%2,%0\n" \ - : : "Q" (*(addrtype *)(&array)), \ - "i" (low), "i" (high)); \ -}) - -#define __ctl_store(array, low, high) ({ \ - typedef struct { char _[sizeof(array)]; } addrtype; \ - asm volatile( \ - " stctl %1,%2,%0\n" \ - : "=Q" (*(addrtype *)(&array)) \ - : "i" (low), "i" (high)); \ - }) - -#endif /* __s390x__ */ - -#define __ctl_set_bit(cr, bit) ({ \ - unsigned long __dummy; \ - __ctl_store(__dummy, cr, cr); \ - __dummy |= 1UL << (bit); \ - __ctl_load(__dummy, cr, cr); \ -}) - -#define __ctl_clear_bit(cr, bit) ({ \ - unsigned long __dummy; \ - __ctl_store(__dummy, cr, cr); \ - __dummy &= ~(1UL << (bit)); \ - __ctl_load(__dummy, cr, cr); \ -}) - -/* - * Use to set psw mask except for the first byte which - * won't be changed by this function. - */ -static inline void -__set_psw_mask(unsigned long mask) -{ - __load_psw_mask(mask | (arch_local_save_flags() & ~(-1UL >> 8))); -} - -#define local_mcck_enable() \ - __set_psw_mask(psw_kernel_bits | PSW_MASK_DAT | PSW_MASK_MCHECK) -#define local_mcck_disable() \ - __set_psw_mask(psw_kernel_bits | PSW_MASK_DAT) - -#ifdef CONFIG_SMP - -extern void smp_ctl_set_bit(int cr, int bit); -extern void smp_ctl_clear_bit(int cr, int bit); -#define ctl_set_bit(cr, bit) smp_ctl_set_bit(cr, bit) -#define ctl_clear_bit(cr, bit) smp_ctl_clear_bit(cr, bit) - -#else - -#define ctl_set_bit(cr, bit) __ctl_set_bit(cr, bit) -#define ctl_clear_bit(cr, bit) __ctl_clear_bit(cr, bit) - -#endif /* CONFIG_SMP */ - -#define MAX_FACILITY_BIT (256*8) /* stfle_fac_list has 256 bytes */ - -/* - * The test_facility function uses the bit odering where the MSB is bit 0. - * That makes it easier to query facility bits with the bit number as - * documented in the Principles of Operation. - */ -static inline int test_facility(unsigned long nr) -{ - unsigned char *ptr; - - if (nr >= MAX_FACILITY_BIT) - return 0; - ptr = (unsigned char *) &S390_lowcore.stfle_fac_list + (nr >> 3); - return (*ptr & (0x80 >> (nr & 7))) != 0; -} - -static inline unsigned short stap(void) -{ - unsigned short cpu_address; - - asm volatile("stap %0" : "=m" (cpu_address)); - return cpu_address; -} - -extern void (*_machine_restart)(char *command); -extern void (*_machine_halt)(void); -extern void (*_machine_power_off)(void); - -extern unsigned long arch_align_stack(unsigned long sp); - -static inline int tprot(unsigned long addr) -{ - int rc = -EFAULT; - - asm volatile( - " tprot 0(%1),0\n" - "0: ipm %0\n" - " srl %0,28\n" - "1:\n" - EX_TABLE(0b,1b) - : "+d" (rc) : "a" (addr) : "cc"); - return rc; -} - -#endif /* __KERNEL__ */ - -#endif diff --git a/arch/s390/include/asm/tape390.h b/arch/s390/include/asm/tape390.h deleted file mode 100644 index 884fba48f1f..00000000000 --- a/arch/s390/include/asm/tape390.h +++ /dev/null @@ -1,103 +0,0 @@ -/************************************************************************* - * - * tape390.h - * enables user programs to display messages and control encryption - * on s390 tape devices - * - * Copyright IBM Corp. 2001,2006 - * Author(s): Michael Holzheu <holzheu@de.ibm.com> - * - *************************************************************************/ - -#ifndef _TAPE390_H -#define _TAPE390_H - -#define TAPE390_DISPLAY _IOW('d', 1, struct display_struct) - -/* - * The TAPE390_DISPLAY ioctl calls the Load Display command - * which transfers 17 bytes of data from the channel to the subsystem: - * - 1 format control byte, and - * - two 8-byte messages - * - * Format control byte: - * 0-2: New Message Overlay - * 3: Alternate Messages - * 4: Blink Message - * 5: Display Low/High Message - * 6: Reserved - * 7: Automatic Load Request - * - */ - -typedef struct display_struct { - char cntrl; - char message1[8]; - char message2[8]; -} display_struct; - -/* - * Tape encryption support - */ - -struct tape390_crypt_info { - char capability; - char status; - char medium_status; -} __attribute__ ((packed)); - - -/* Macros for "capable" field */ -#define TAPE390_CRYPT_SUPPORTED_MASK 0x01 -#define TAPE390_CRYPT_SUPPORTED(x) \ - ((x.capability & TAPE390_CRYPT_SUPPORTED_MASK)) - -/* Macros for "status" field */ -#define TAPE390_CRYPT_ON_MASK 0x01 -#define TAPE390_CRYPT_ON(x) (((x.status) & TAPE390_CRYPT_ON_MASK)) - -/* Macros for "medium status" field */ -#define TAPE390_MEDIUM_LOADED_MASK 0x01 -#define TAPE390_MEDIUM_ENCRYPTED_MASK 0x02 -#define TAPE390_MEDIUM_ENCRYPTED(x) \ - (((x.medium_status) & TAPE390_MEDIUM_ENCRYPTED_MASK)) -#define TAPE390_MEDIUM_LOADED(x) \ - (((x.medium_status) & TAPE390_MEDIUM_LOADED_MASK)) - -/* - * The TAPE390_CRYPT_SET ioctl is used to switch on/off encryption. - * The "encryption_capable" and "tape_status" fields are ignored for this ioctl! - */ -#define TAPE390_CRYPT_SET _IOW('d', 2, struct tape390_crypt_info) - -/* - * The TAPE390_CRYPT_QUERY ioctl is used to query the encryption state. - */ -#define TAPE390_CRYPT_QUERY _IOR('d', 3, struct tape390_crypt_info) - -/* Values for "kekl1/2_type" and "kekl1/2_type_on_tape" fields */ -#define TAPE390_KEKL_TYPE_NONE 0 -#define TAPE390_KEKL_TYPE_LABEL 1 -#define TAPE390_KEKL_TYPE_HASH 2 - -struct tape390_kekl { - unsigned char type; - unsigned char type_on_tape; - char label[65]; -} __attribute__ ((packed)); - -struct tape390_kekl_pair { - struct tape390_kekl kekl[2]; -} __attribute__ ((packed)); - -/* - * The TAPE390_KEKL_SET ioctl is used to set Key Encrypting Key labels. - */ -#define TAPE390_KEKL_SET _IOW('d', 4, struct tape390_kekl_pair) - -/* - * The TAPE390_KEKL_QUERY ioctl is used to query Key Encrypting Key labels. - */ -#define TAPE390_KEKL_QUERY _IOR('d', 5, struct tape390_kekl_pair) - -#endif diff --git a/arch/s390/include/asm/termbits.h b/arch/s390/include/asm/termbits.h deleted file mode 100644 index 71bf6ac6a2b..00000000000 --- a/arch/s390/include/asm/termbits.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef _ASM_S390_TERMBITS_H -#define _ASM_S390_TERMBITS_H - -#include <asm-generic/termbits.h> - -#endif diff --git a/arch/s390/include/asm/termios.h b/arch/s390/include/asm/termios.h index bc3a35cefc9..db028d17f06 100644 --- a/arch/s390/include/asm/termios.h +++ b/arch/s390/include/asm/termios.h @@ -1,53 +1,13 @@ /* - * include/asm-s390/termios.h - * * S390 version * * Derived from "include/asm-i386/termios.h" */ - #ifndef _S390_TERMIOS_H #define _S390_TERMIOS_H -#include <asm/termbits.h> -#include <asm/ioctls.h> - -struct winsize { - unsigned short ws_row; - unsigned short ws_col; - unsigned short ws_xpixel; - unsigned short ws_ypixel; -}; - -#define NCC 8 -struct termio { - unsigned short c_iflag; /* input mode flags */ - unsigned short c_oflag; /* output mode flags */ - unsigned short c_cflag; /* control mode flags */ - unsigned short c_lflag; /* local mode flags */ - unsigned char c_line; /* line discipline */ - unsigned char c_cc[NCC]; /* control characters */ -}; +#include <uapi/asm/termios.h> -/* modem lines */ -#define TIOCM_LE 0x001 -#define TIOCM_DTR 0x002 -#define TIOCM_RTS 0x004 -#define TIOCM_ST 0x008 -#define TIOCM_SR 0x010 -#define TIOCM_CTS 0x020 -#define TIOCM_CAR 0x040 -#define TIOCM_RNG 0x080 -#define TIOCM_DSR 0x100 -#define TIOCM_CD TIOCM_CAR -#define TIOCM_RI TIOCM_RNG -#define TIOCM_OUT1 0x2000 -#define TIOCM_OUT2 0x4000 -#define TIOCM_LOOP 0x8000 - -/* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */ - -#ifdef __KERNEL__ /* intr=^C quit=^\ erase=del kill=^U eof=^D vtime=\0 vmin=\1 sxtc=\0 @@ -62,6 +22,4 @@ struct termio { #include <asm-generic/termios-base.h> -#endif /* __KERNEL__ */ - #endif /* _S390_TERMIOS_H */ diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h index a73038155e0..b833e9c0bfb 100644 --- a/arch/s390/include/asm/thread_info.h +++ b/arch/s390/include/asm/thread_info.h @@ -1,31 +1,22 @@ /* - * include/asm-s390/thread_info.h - * * S390 version - * Copyright (C) IBM Corp. 2002,2006 + * Copyright IBM Corp. 2002, 2006 * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com) */ #ifndef _ASM_THREAD_INFO_H #define _ASM_THREAD_INFO_H -#ifdef __KERNEL__ - /* * Size of kernel stack for each process */ -#ifndef __s390x__ +#ifndef CONFIG_64BIT #define THREAD_ORDER 1 #define ASYNC_ORDER 1 -#else /* __s390x__ */ -#ifndef __SMALL_STACK +#else /* CONFIG_64BIT */ #define THREAD_ORDER 2 #define ASYNC_ORDER 2 -#else -#define THREAD_ORDER 1 -#define ASYNC_ORDER 1 -#endif -#endif /* __s390x__ */ +#endif /* CONFIG_64BIT */ #define THREAD_SIZE (PAGE_SIZE << THREAD_ORDER) #define ASYNC_SIZE (PAGE_SIZE << ASYNC_ORDER) @@ -45,6 +36,7 @@ struct thread_info { struct task_struct *task; /* main task structure */ struct exec_domain *exec_domain; /* execution domain */ unsigned long flags; /* low level flags */ + unsigned long sys_call_table; /* System call table address */ unsigned int cpu; /* current CPU */ int preempt_count; /* 0 => preemptable, <0 => BUG */ struct restart_block restart_block; @@ -85,37 +77,26 @@ static inline struct thread_info *current_thread_info(void) /* * thread information flags bit numbers */ -#define TIF_SYSCALL 0 /* inside a system call */ -#define TIF_NOTIFY_RESUME 1 /* callback before returning to user */ -#define TIF_SIGPENDING 2 /* signal pending */ -#define TIF_NEED_RESCHED 3 /* rescheduling necessary */ -#define TIF_PER_TRAP 6 /* deliver sigtrap on return to user */ -#define TIF_MCCK_PENDING 7 /* machine check handling is pending */ -#define TIF_SYSCALL_TRACE 8 /* syscall trace active */ -#define TIF_SYSCALL_AUDIT 9 /* syscall auditing active */ -#define TIF_SECCOMP 10 /* secure computing */ -#define TIF_SYSCALL_TRACEPOINT 11 /* syscall tracepoint instrumentation */ -#define TIF_SIE 12 /* guest execution active */ -#define TIF_POLLING_NRFLAG 16 /* true if poll_idle() is polling - TIF_NEED_RESCHED */ -#define TIF_31BIT 17 /* 32bit process */ -#define TIF_MEMDIE 18 /* is terminating due to OOM killer */ -#define TIF_RESTORE_SIGMASK 19 /* restore signal mask in do_signal() */ -#define TIF_SINGLE_STEP 20 /* This task is single stepped */ +#define TIF_NOTIFY_RESUME 0 /* callback before returning to user */ +#define TIF_SIGPENDING 1 /* signal pending */ +#define TIF_NEED_RESCHED 2 /* rescheduling necessary */ +#define TIF_SYSCALL_TRACE 3 /* syscall trace active */ +#define TIF_SYSCALL_AUDIT 4 /* syscall auditing active */ +#define TIF_SECCOMP 5 /* secure computing */ +#define TIF_SYSCALL_TRACEPOINT 6 /* syscall tracepoint instrumentation */ +#define TIF_31BIT 16 /* 32bit process */ +#define TIF_MEMDIE 17 /* is terminating due to OOM killer */ +#define TIF_RESTORE_SIGMASK 18 /* restore signal mask in do_signal() */ +#define TIF_SINGLE_STEP 19 /* This task is single stepped */ +#define TIF_BLOCK_STEP 20 /* This task is block stepped */ -#define _TIF_SYSCALL (1<<TIF_SYSCALL) #define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME) -#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK) #define _TIF_SIGPENDING (1<<TIF_SIGPENDING) #define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED) -#define _TIF_PER_TRAP (1<<TIF_PER_TRAP) -#define _TIF_MCCK_PENDING (1<<TIF_MCCK_PENDING) #define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE) #define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT) #define _TIF_SECCOMP (1<<TIF_SECCOMP) #define _TIF_SYSCALL_TRACEPOINT (1<<TIF_SYSCALL_TRACEPOINT) -#define _TIF_SIE (1<<TIF_SIE) -#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG) #define _TIF_31BIT (1<<TIF_31BIT) #define _TIF_SINGLE_STEP (1<<TIF_SINGLE_STEP) @@ -125,8 +106,4 @@ static inline struct thread_info *current_thread_info(void) #define is_32bit_task() (1) #endif -#endif /* __KERNEL__ */ - -#define PREEMPT_ACTIVE 0x4000000 - #endif /* _ASM_THREAD_INFO_H */ diff --git a/arch/s390/include/asm/timer.h b/arch/s390/include/asm/timer.h deleted file mode 100644 index 814243cafdf..00000000000 --- a/arch/s390/include/asm/timer.h +++ /dev/null @@ -1,55 +0,0 @@ -/* - * include/asm-s390/timer.h - * - * (C) Copyright IBM Corp. 2003,2006 - * Virtual CPU timer - * - * Author: Jan Glauber (jang@de.ibm.com) - */ - -#ifndef _ASM_S390_TIMER_H -#define _ASM_S390_TIMER_H - -#ifdef __KERNEL__ - -#include <linux/timer.h> - -#define VTIMER_MAX_SLICE (0x7ffffffffffff000LL) - -struct vtimer_list { - struct list_head entry; - - int cpu; - __u64 expires; - __u64 interval; - - void (*function)(unsigned long); - unsigned long data; -}; - -/* the vtimer value will wrap after ca. 71 years */ -struct vtimer_queue { - struct list_head list; - spinlock_t lock; - __u64 timer; /* last programmed timer */ - __u64 elapsed; /* elapsed time of timer expire values */ - __u64 idle; /* temp var for idle */ - int do_spt; /* =1: reprogram cpu timer in idle */ -}; - -extern void init_virt_timer(struct vtimer_list *timer); -extern void add_virt_timer(void *new); -extern void add_virt_timer_periodic(void *new); -extern int mod_virt_timer(struct vtimer_list *timer, __u64 expires); -extern int mod_virt_timer_periodic(struct vtimer_list *timer, __u64 expires); -extern int del_virt_timer(struct vtimer_list *timer); - -extern void init_cpu_vtimer(void); -extern void vtime_init(void); - -extern void vtime_stop_cpu(void); -extern void vtime_start_leave(void); - -#endif /* __KERNEL__ */ - -#endif /* _ASM_S390_TIMER_H */ diff --git a/arch/s390/include/asm/timex.h b/arch/s390/include/asm/timex.h index c447a27a7fd..8beee1cceba 100644 --- a/arch/s390/include/asm/timex.h +++ b/arch/s390/include/asm/timex.h @@ -1,8 +1,6 @@ /* - * include/asm-s390/timex.h - * * S390 version - * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation + * Copyright IBM Corp. 1999 * * Derived from "include/asm-i386/timex.h" * Copyright (C) 1992, Linus Torvalds @@ -17,7 +15,7 @@ #define TOD_UNIX_EPOCH 0x7d91048bca000000ULL /* Inline functions for clock register access. */ -static inline int set_clock(__u64 time) +static inline int set_tod_clock(__u64 time) { int cc; @@ -29,7 +27,7 @@ static inline int set_clock(__u64 time) return cc; } -static inline int store_clock(__u64 *time) +static inline int store_tod_clock(__u64 *time) { int cc; @@ -73,40 +71,35 @@ static inline void local_tick_enable(unsigned long long comp) typedef unsigned long long cycles_t; -static inline unsigned long long get_clock (void) +static inline void get_tod_clock_ext(char clk[16]) { - unsigned long long clk; + typedef struct { char _[sizeof(clk)]; } addrtype; - asm volatile("stck %0" : "=Q" (clk) : : "cc"); - return clk; + asm volatile("stcke %0" : "=Q" (*(addrtype *) clk) : : "cc"); } -static inline void get_clock_ext(char *clk) +static inline unsigned long long get_tod_clock(void) { - asm volatile("stcke %0" : "=Q" (*clk) : : "cc"); + unsigned char clk[16]; + get_tod_clock_ext(clk); + return *((unsigned long long *)&clk[1]); } -static inline unsigned long long get_clock_fast(void) +static inline unsigned long long get_tod_clock_fast(void) { +#ifdef CONFIG_HAVE_MARCH_Z9_109_FEATURES unsigned long long clk; - if (MACHINE_HAS_STCKF) - asm volatile(".insn s,0xb27c0000,%0" : "=Q" (clk) : : "cc"); - else - clk = get_clock(); + asm volatile("stckf %0" : "=Q" (clk) : : "cc"); return clk; -} - -static inline unsigned long long get_clock_xt(void) -{ - unsigned char clk[16]; - get_clock_ext(clk); - return *((unsigned long long *)&clk[1]); +#else + return get_tod_clock(); +#endif } static inline cycles_t get_cycles(void) { - return (cycles_t) get_clock() >> 2; + return (cycles_t) get_tod_clock() >> 2; } int get_sync_clock(unsigned long long *clock); @@ -132,9 +125,37 @@ extern u64 sched_clock_base_cc; * function, otherwise the returned value is not guaranteed to * be monotonic. */ -static inline unsigned long long get_clock_monotonic(void) +static inline unsigned long long get_tod_clock_monotonic(void) { - return get_clock_xt() - sched_clock_base_cc; + return get_tod_clock() - sched_clock_base_cc; +} + +/** + * tod_to_ns - convert a TOD format value to nanoseconds + * @todval: to be converted TOD format value + * Returns: number of nanoseconds that correspond to the TOD format value + * + * Converting a 64 Bit TOD format value to nanoseconds means that the value + * must be divided by 4.096. In order to achieve that we multiply with 125 + * and divide by 512: + * + * ns = (todval * 125) >> 9; + * + * In order to avoid an overflow with the multiplication we can rewrite this. + * With a split todval == 2^32 * th + tl (th upper 32 bits, tl lower 32 bits) + * we end up with + * + * ns = ((2^32 * th + tl) * 125 ) >> 9; + * -> ns = (2^23 * th * 125) + ((tl * 125) >> 9); + * + */ +static inline unsigned long long tod_to_ns(unsigned long long todval) +{ + unsigned long long ns; + + ns = ((todval >> 32) << 23) * 125; + ns += ((todval & 0xffffffff) * 125) >> 9; + return ns; } #endif diff --git a/arch/s390/include/asm/tlb.h b/arch/s390/include/asm/tlb.h index c687a2c8346..a25f09fbaf3 100644 --- a/arch/s390/include/asm/tlb.h +++ b/arch/s390/include/asm/tlb.h @@ -30,14 +30,11 @@ struct mmu_gather { struct mm_struct *mm; -#ifdef CONFIG_HAVE_RCU_TABLE_FREE struct mmu_table_batch *batch; -#endif unsigned int fullmm; - unsigned int need_flush; + unsigned long start, end; }; -#ifdef CONFIG_HAVE_RCU_TABLE_FREE struct mmu_table_batch { struct rcu_head rcu; unsigned int nr; @@ -49,31 +46,34 @@ struct mmu_table_batch { extern void tlb_table_flush(struct mmu_gather *tlb); extern void tlb_remove_table(struct mmu_gather *tlb, void *table); -#endif static inline void tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, - unsigned int full_mm_flush) + unsigned long start, + unsigned long end) { tlb->mm = mm; - tlb->fullmm = full_mm_flush; - tlb->need_flush = 0; -#ifdef CONFIG_HAVE_RCU_TABLE_FREE + tlb->start = start; + tlb->end = end; + tlb->fullmm = !(start | (end+1)); tlb->batch = NULL; -#endif - if (tlb->fullmm) - __tlb_flush_mm(mm); } -static inline void tlb_flush_mmu(struct mmu_gather *tlb) +static inline void tlb_flush_mmu_tlbonly(struct mmu_gather *tlb) +{ + __tlb_flush_mm_lazy(tlb->mm); +} + +static inline void tlb_flush_mmu_free(struct mmu_gather *tlb) { - if (!tlb->need_flush) - return; - tlb->need_flush = 0; - __tlb_flush_mm(tlb->mm); -#ifdef CONFIG_HAVE_RCU_TABLE_FREE tlb_table_flush(tlb); -#endif +} + + +static inline void tlb_flush_mmu(struct mmu_gather *tlb) +{ + tlb_flush_mmu_tlbonly(tlb); + tlb_flush_mmu_free(tlb); } static inline void tlb_finish_mmu(struct mmu_gather *tlb, @@ -105,11 +105,7 @@ static inline void tlb_remove_page(struct mmu_gather *tlb, struct page *page) static inline void pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte, unsigned long address) { -#ifdef CONFIG_HAVE_RCU_TABLE_FREE - if (!tlb->fullmm) - return page_table_free_rcu(tlb, (unsigned long *) pte); -#endif - page_table_free(tlb->mm, (unsigned long *) pte); + page_table_free_rcu(tlb, (unsigned long *) pte); } /* @@ -122,14 +118,10 @@ static inline void pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte, static inline void pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd, unsigned long address) { -#ifdef __s390x__ +#ifdef CONFIG_64BIT if (tlb->mm->context.asce_limit <= (1UL << 31)) return; -#ifdef CONFIG_HAVE_RCU_TABLE_FREE - if (!tlb->fullmm) - return tlb_remove_table(tlb, pmd); -#endif - crst_table_free(tlb->mm, (unsigned long *) pmd); + tlb_remove_table(tlb, pmd); #endif } @@ -143,20 +135,17 @@ static inline void pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd, static inline void pud_free_tlb(struct mmu_gather *tlb, pud_t *pud, unsigned long address) { -#ifdef __s390x__ +#ifdef CONFIG_64BIT if (tlb->mm->context.asce_limit <= (1UL << 42)) return; -#ifdef CONFIG_HAVE_RCU_TABLE_FREE - if (!tlb->fullmm) - return tlb_remove_table(tlb, pud); -#endif - crst_table_free(tlb->mm, (unsigned long *) pud); + tlb_remove_table(tlb, pud); #endif } #define tlb_start_vma(tlb, vma) do { } while (0) #define tlb_end_vma(tlb, vma) do { } while (0) #define tlb_remove_tlb_entry(tlb, ptep, addr) do { } while (0) +#define tlb_remove_pmd_tlb_entry(tlb, pmdp, addr) do { } while (0) #define tlb_migrate_finish(mm) do { } while (0) #endif /* _S390_TLB_H */ diff --git a/arch/s390/include/asm/tlbflush.h b/arch/s390/include/asm/tlbflush.h index 1d8648cf2fe..16c9c88658c 100644 --- a/arch/s390/include/asm/tlbflush.h +++ b/arch/s390/include/asm/tlbflush.h @@ -7,19 +7,41 @@ #include <asm/pgalloc.h> /* - * Flush all tlb entries on the local cpu. + * Flush all TLB entries on the local CPU. */ static inline void __tlb_flush_local(void) { asm volatile("ptlb" : : : "memory"); } -#ifdef CONFIG_SMP /* - * Flush all tlb entries on all cpus. + * Flush TLB entries for a specific ASCE on all CPUs */ +static inline void __tlb_flush_idte(unsigned long asce) +{ + /* Global TLB flush for the mm */ + asm volatile( + " .insn rrf,0xb98e0000,0,%0,%1,0" + : : "a" (2048), "a" (asce) : "cc"); +} + +/* + * Flush TLB entries for a specific ASCE on the local CPU + */ +static inline void __tlb_flush_idte_local(unsigned long asce) +{ + /* Local TLB flush for the mm */ + asm volatile( + " .insn rrf,0xb98e0000,0,%0,%1,1" + : : "a" (2048), "a" (asce) : "cc"); +} + +#ifdef CONFIG_SMP void smp_ptlb_all(void); +/* + * Flush all TLB entries on all CPUs. + */ static inline void __tlb_flush_global(void) { register unsigned long reg2 asm("2"); @@ -27,12 +49,12 @@ static inline void __tlb_flush_global(void) register unsigned long reg4 asm("4"); long dummy; -#ifndef __s390x__ +#ifndef CONFIG_64BIT if (!MACHINE_HAS_CSP) { smp_ptlb_all(); return; } -#endif /* __s390x__ */ +#endif /* CONFIG_64BIT */ dummy = 0; reg2 = reg3 = 0; @@ -42,60 +64,109 @@ static inline void __tlb_flush_global(void) : : "d" (reg2), "d" (reg3), "d" (reg4), "m" (dummy) : "cc" ); } +/* + * Flush TLB entries for a specific mm on all CPUs (in case gmap is used + * this implicates multiple ASCEs!). + */ static inline void __tlb_flush_full(struct mm_struct *mm) { - cpumask_t local_cpumask; - preempt_disable(); - /* - * If the process only ran on the local cpu, do a local flush. - */ - cpumask_copy(&local_cpumask, cpumask_of(smp_processor_id())); - if (cpumask_equal(mm_cpumask(mm), &local_cpumask)) + atomic_add(0x10000, &mm->context.attach_count); + if (cpumask_equal(mm_cpumask(mm), cpumask_of(smp_processor_id()))) { + /* Local TLB flush */ __tlb_flush_local(); - else + } else { + /* Global TLB flush */ __tlb_flush_global(); + /* Reset TLB flush mask */ + if (MACHINE_HAS_TLB_LC) + cpumask_copy(mm_cpumask(mm), + &mm->context.cpu_attach_mask); + } + atomic_sub(0x10000, &mm->context.attach_count); + preempt_enable(); +} + +/* + * Flush TLB entries for a specific ASCE on all CPUs. + */ +static inline void __tlb_flush_asce(struct mm_struct *mm, unsigned long asce) +{ + int active, count; + + preempt_disable(); + active = (mm == current->active_mm) ? 1 : 0; + count = atomic_add_return(0x10000, &mm->context.attach_count); + if (MACHINE_HAS_TLB_LC && (count & 0xffff) <= active && + cpumask_equal(mm_cpumask(mm), cpumask_of(smp_processor_id()))) { + __tlb_flush_idte_local(asce); + } else { + if (MACHINE_HAS_IDTE) + __tlb_flush_idte(asce); + else + __tlb_flush_global(); + /* Reset TLB flush mask */ + if (MACHINE_HAS_TLB_LC) + cpumask_copy(mm_cpumask(mm), + &mm->context.cpu_attach_mask); + } + atomic_sub(0x10000, &mm->context.attach_count); preempt_enable(); } + +static inline void __tlb_flush_kernel(void) +{ + if (MACHINE_HAS_IDTE) + __tlb_flush_idte((unsigned long) init_mm.pgd | + init_mm.context.asce_bits); + else + __tlb_flush_global(); +} #else -#define __tlb_flush_full(mm) __tlb_flush_local() #define __tlb_flush_global() __tlb_flush_local() -#endif +#define __tlb_flush_full(mm) __tlb_flush_local() /* - * Flush all tlb entries of a page table on all cpus. + * Flush TLB entries for a specific ASCE on all CPUs. */ -static inline void __tlb_flush_idte(unsigned long asce) +static inline void __tlb_flush_asce(struct mm_struct *mm, unsigned long asce) { - asm volatile( - " .insn rrf,0xb98e0000,0,%0,%1,0" - : : "a" (2048), "a" (asce) : "cc" ); + if (MACHINE_HAS_TLB_LC) + __tlb_flush_idte_local(asce); + else + __tlb_flush_local(); } +static inline void __tlb_flush_kernel(void) +{ + if (MACHINE_HAS_TLB_LC) + __tlb_flush_idte_local((unsigned long) init_mm.pgd | + init_mm.context.asce_bits); + else + __tlb_flush_local(); +} +#endif + static inline void __tlb_flush_mm(struct mm_struct * mm) { - if (unlikely(cpumask_empty(mm_cpumask(mm)))) - return; /* * If the machine has IDTE we prefer to do a per mm flush * on all cpus instead of doing a local flush if the mm * only ran on the local cpu. */ if (MACHINE_HAS_IDTE && list_empty(&mm->context.gmap_list)) - __tlb_flush_idte((unsigned long) mm->pgd | + __tlb_flush_asce(mm, (unsigned long) mm->pgd | mm->context.asce_bits); else __tlb_flush_full(mm); } -static inline void __tlb_flush_mm_cond(struct mm_struct * mm) +static inline void __tlb_flush_mm_lazy(struct mm_struct * mm) { - spin_lock(&mm->page_table_lock); if (mm->context.flush_mm) { __tlb_flush_mm(mm); mm->context.flush_mm = 0; } - spin_unlock(&mm->page_table_lock); } /* @@ -122,19 +193,19 @@ static inline void __tlb_flush_mm_cond(struct mm_struct * mm) static inline void flush_tlb_mm(struct mm_struct *mm) { - __tlb_flush_mm_cond(mm); + __tlb_flush_mm_lazy(mm); } static inline void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end) { - __tlb_flush_mm_cond(vma->vm_mm); + __tlb_flush_mm_lazy(vma->vm_mm); } static inline void flush_tlb_kernel_range(unsigned long start, unsigned long end) { - __tlb_flush_mm(&init_mm); + __tlb_flush_kernel(); } #endif /* _S390_TLBFLUSH_H */ diff --git a/arch/s390/include/asm/topology.h b/arch/s390/include/asm/topology.h index 0837de80c35..56af53093d2 100644 --- a/arch/s390/include/asm/topology.h +++ b/arch/s390/include/asm/topology.h @@ -2,40 +2,36 @@ #define _ASM_S390_TOPOLOGY_H #include <linux/cpumask.h> -#include <asm/sysinfo.h> +struct sysinfo_15_1_x; struct cpu; #ifdef CONFIG_SCHED_BOOK -extern unsigned char cpu_core_id[NR_CPUS]; -extern cpumask_t cpu_core_map[NR_CPUS]; - -static inline const struct cpumask *cpu_coregroup_mask(int cpu) -{ - return &cpu_core_map[cpu]; -} - -#define topology_core_id(cpu) (cpu_core_id[cpu]) -#define topology_core_cpumask(cpu) (&cpu_core_map[cpu]) -#define mc_capable() (1) +struct cpu_topology_s390 { + unsigned short core_id; + unsigned short socket_id; + unsigned short book_id; + cpumask_t core_mask; + cpumask_t book_mask; +}; -extern unsigned char cpu_book_id[NR_CPUS]; -extern cpumask_t cpu_book_map[NR_CPUS]; +extern struct cpu_topology_s390 cpu_topology[NR_CPUS]; -static inline const struct cpumask *cpu_book_mask(int cpu) -{ - return &cpu_book_map[cpu]; -} +#define topology_physical_package_id(cpu) (cpu_topology[cpu].socket_id) +#define topology_core_id(cpu) (cpu_topology[cpu].core_id) +#define topology_core_cpumask(cpu) (&cpu_topology[cpu].core_mask) +#define topology_book_id(cpu) (cpu_topology[cpu].book_id) +#define topology_book_cpumask(cpu) (&cpu_topology[cpu].book_mask) -#define topology_book_id(cpu) (cpu_book_id[cpu]) -#define topology_book_cpumask(cpu) (&cpu_book_map[cpu]) +#define mc_capable() 1 int topology_cpu_init(struct cpu *); int topology_set_cpu_management(int fc); void topology_schedule_update(void); void store_topology(struct sysinfo_15_1_x *info); void topology_expect_change(void); +const struct cpumask *cpu_coregroup_mask(int cpu); #else /* CONFIG_SCHED_BOOK */ @@ -51,24 +47,6 @@ static inline void topology_expect_change(void) { } #define POLARIZATION_VM (2) #define POLARIZATION_VH (3) -extern int cpu_polarization[]; - -static inline void cpu_set_polarization(int cpu, int val) -{ -#ifdef CONFIG_SCHED_BOOK - cpu_polarization[cpu] = val; -#endif -} - -static inline int cpu_read_polarization(int cpu) -{ -#ifdef CONFIG_SCHED_BOOK - return cpu_polarization[cpu]; -#else - return POLARIZATION_HRZ; -#endif -} - #ifdef CONFIG_SCHED_BOOK void s390_init_cpu_topology(void); #else @@ -77,8 +55,6 @@ static inline void s390_init_cpu_topology(void) }; #endif -#define SD_BOOK_INIT SD_CPU_INIT - #include <asm-generic/topology.h> #endif /* _ASM_S390_TOPOLOGY_H */ diff --git a/arch/s390/include/asm/types.h b/arch/s390/include/asm/types.h index 05ebbcdbbf6..dccef3ca91f 100644 --- a/arch/s390/include/asm/types.h +++ b/arch/s390/include/asm/types.h @@ -1,34 +1,20 @@ /* - * include/asm-s390/types.h - * * S390 version * * Derived from "include/asm-i386/types.h" */ - #ifndef _S390_TYPES_H #define _S390_TYPES_H -#include <asm-generic/int-ll64.h> - -#ifndef __ASSEMBLY__ - -/* A address type so that arithmetic can be done on it & it can be upgraded to - 64 bit when necessary -*/ -typedef unsigned long addr_t; -typedef __signed__ long saddr_t; - -#endif /* __ASSEMBLY__ */ +#include <uapi/asm/types.h> /* * These aren't exported outside the kernel to avoid name space clashes */ -#ifdef __KERNEL__ #ifndef __ASSEMBLY__ -#ifndef __s390x__ +#ifndef CONFIG_64BIT typedef union { unsigned long long pair; struct { @@ -37,7 +23,6 @@ typedef union { } subreg; } register_pair; -#endif /* ! __s390x__ */ +#endif /* ! CONFIG_64BIT */ #endif /* __ASSEMBLY__ */ -#endif /* __KERNEL__ */ #endif /* _S390_TYPES_H */ diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h index 2b23885e81e..cd4c68e0398 100644 --- a/arch/s390/include/asm/uaccess.h +++ b/arch/s390/include/asm/uaccess.h @@ -1,8 +1,6 @@ /* - * include/asm-s390/uaccess.h - * * S390 version - * Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation + * Copyright IBM Corp. 1999, 2000 * Author(s): Hartmut Penner (hp@de.ibm.com), * Martin Schwidefsky (schwidefsky@de.ibm.com) * @@ -16,6 +14,7 @@ */ #include <linux/sched.h> #include <linux/errno.h> +#include <asm/ctl_reg.h> #define VERIFY_READ 0 #define VERIFY_WRITE 1 @@ -49,10 +48,15 @@ #define segment_eq(a,b) ((a).ar4 == (b).ar4) -#define __access_ok(addr, size) \ -({ \ - __chk_user_ptr(addr); \ - 1; \ +static inline int __range_ok(unsigned long addr, unsigned long size) +{ + return 1; +} + +#define __access_ok(addr, size) \ +({ \ + __chk_user_ptr(addr); \ + __range_ok((unsigned long)(addr), (size)); \ }) #define access_ok(type, addr, size) __access_ok(addr, size) @@ -72,42 +76,104 @@ struct exception_table_entry { - unsigned long insn, fixup; + int insn, fixup; }; -struct uaccess_ops { - size_t (*copy_from_user)(size_t, const void __user *, void *); - size_t (*copy_from_user_small)(size_t, const void __user *, void *); - size_t (*copy_to_user)(size_t, void __user *, const void *); - size_t (*copy_to_user_small)(size_t, void __user *, const void *); - size_t (*copy_in_user)(size_t, void __user *, const void __user *); - size_t (*clear_user)(size_t, void __user *); - size_t (*strnlen_user)(size_t, const char __user *); - size_t (*strncpy_from_user)(size_t, const char __user *, char *); - int (*futex_atomic_op)(int op, u32 __user *, int oparg, int *old); - int (*futex_atomic_cmpxchg)(u32 *, u32 __user *, u32 old, u32 new); -}; +static inline unsigned long extable_insn(const struct exception_table_entry *x) +{ + return (unsigned long)&x->insn + x->insn; +} -extern struct uaccess_ops uaccess; -extern struct uaccess_ops uaccess_std; -extern struct uaccess_ops uaccess_mvcos; -extern struct uaccess_ops uaccess_mvcos_switch; -extern struct uaccess_ops uaccess_pt; +static inline unsigned long extable_fixup(const struct exception_table_entry *x) +{ + return (unsigned long)&x->fixup + x->fixup; +} + +#define ARCH_HAS_SORT_EXTABLE +#define ARCH_HAS_SEARCH_EXTABLE -extern int __handle_fault(unsigned long, unsigned long, int); +/** + * __copy_from_user: - Copy a block of data from user space, with less checking. + * @to: Destination address, in kernel space. + * @from: Source address, in user space. + * @n: Number of bytes to copy. + * + * Context: User context only. This function may sleep. + * + * Copy data from user space to kernel space. Caller must check + * the specified block with access_ok() before calling this function. + * + * Returns number of bytes that could not be copied. + * On success, this will be zero. + * + * If some data could not be copied, this function will pad the copied + * data to the requested size using zero bytes. + */ +unsigned long __must_check __copy_from_user(void *to, const void __user *from, + unsigned long n); -static inline int __put_user_fn(size_t size, void __user *ptr, void *x) +/** + * __copy_to_user: - Copy a block of data into user space, with less checking. + * @to: Destination address, in user space. + * @from: Source address, in kernel space. + * @n: Number of bytes to copy. + * + * Context: User context only. This function may sleep. + * + * Copy data from kernel space to user space. Caller must check + * the specified block with access_ok() before calling this function. + * + * Returns number of bytes that could not be copied. + * On success, this will be zero. + */ +unsigned long __must_check __copy_to_user(void __user *to, const void *from, + unsigned long n); + +#define __copy_to_user_inatomic __copy_to_user +#define __copy_from_user_inatomic __copy_from_user + +#ifdef CONFIG_HAVE_MARCH_Z10_FEATURES + +#define __put_get_user_asm(to, from, size, spec) \ +({ \ + register unsigned long __reg0 asm("0") = spec; \ + int __rc; \ + \ + asm volatile( \ + "0: mvcos %1,%3,%2\n" \ + "1: xr %0,%0\n" \ + "2:\n" \ + ".pushsection .fixup, \"ax\"\n" \ + "3: lhi %0,%5\n" \ + " jg 2b\n" \ + ".popsection\n" \ + EX_TABLE(0b,3b) EX_TABLE(1b,3b) \ + : "=d" (__rc), "=Q" (*(to)) \ + : "d" (size), "Q" (*(from)), \ + "d" (__reg0), "K" (-EFAULT) \ + : "cc"); \ + __rc; \ +}) + +#define __put_user_fn(x, ptr, size) __put_get_user_asm(ptr, x, size, 0x810000UL) +#define __get_user_fn(x, ptr, size) __put_get_user_asm(x, ptr, size, 0x81UL) + +#else /* CONFIG_HAVE_MARCH_Z10_FEATURES */ + +static inline int __put_user_fn(void *x, void __user *ptr, unsigned long size) { - size = uaccess.copy_to_user_small(size, ptr, x); - return size ? -EFAULT : size; + size = __copy_to_user(ptr, x, size); + return size ? -EFAULT : 0; } -static inline int __get_user_fn(size_t size, const void __user *ptr, void *x) +static inline int __get_user_fn(void *x, const void __user *ptr, unsigned long size) { - size = uaccess.copy_from_user_small(size, ptr, x); - return size ? -EFAULT : size; + size = __copy_from_user(x, ptr, size); + return size ? -EFAULT : 0; } +#endif /* CONFIG_HAVE_MARCH_Z10_FEATURES */ + /* * These are the main single-value transfer routines. They automatically * use the right size if we just have the right pointer type. @@ -122,8 +188,8 @@ static inline int __get_user_fn(size_t size, const void __user *ptr, void *x) case 2: \ case 4: \ case 8: \ - __pu_err = __put_user_fn(sizeof (*(ptr)), \ - ptr, &__x); \ + __pu_err = __put_user_fn(&__x, ptr, \ + sizeof(*(ptr))); \ break; \ default: \ __put_user_bad(); \ @@ -139,7 +205,7 @@ static inline int __get_user_fn(size_t size, const void __user *ptr, void *x) }) -extern int __put_user_bad(void) __attribute__((noreturn)); +int __put_user_bad(void) __attribute__((noreturn)); #define __get_user(x, ptr) \ ({ \ @@ -148,29 +214,29 @@ extern int __put_user_bad(void) __attribute__((noreturn)); switch (sizeof(*(ptr))) { \ case 1: { \ unsigned char __x; \ - __gu_err = __get_user_fn(sizeof (*(ptr)), \ - ptr, &__x); \ + __gu_err = __get_user_fn(&__x, ptr, \ + sizeof(*(ptr))); \ (x) = *(__force __typeof__(*(ptr)) *) &__x; \ break; \ }; \ case 2: { \ unsigned short __x; \ - __gu_err = __get_user_fn(sizeof (*(ptr)), \ - ptr, &__x); \ + __gu_err = __get_user_fn(&__x, ptr, \ + sizeof(*(ptr))); \ (x) = *(__force __typeof__(*(ptr)) *) &__x; \ break; \ }; \ case 4: { \ unsigned int __x; \ - __gu_err = __get_user_fn(sizeof (*(ptr)), \ - ptr, &__x); \ + __gu_err = __get_user_fn(&__x, ptr, \ + sizeof(*(ptr))); \ (x) = *(__force __typeof__(*(ptr)) *) &__x; \ break; \ }; \ case 8: { \ unsigned long long __x; \ - __gu_err = __get_user_fn(sizeof (*(ptr)), \ - ptr, &__x); \ + __gu_err = __get_user_fn(&__x, ptr, \ + sizeof(*(ptr))); \ (x) = *(__force __typeof__(*(ptr)) *) &__x; \ break; \ }; \ @@ -187,38 +253,12 @@ extern int __put_user_bad(void) __attribute__((noreturn)); __get_user(x, ptr); \ }) -extern int __get_user_bad(void) __attribute__((noreturn)); +int __get_user_bad(void) __attribute__((noreturn)); #define __put_user_unaligned __put_user #define __get_user_unaligned __get_user /** - * __copy_to_user: - Copy a block of data into user space, with less checking. - * @to: Destination address, in user space. - * @from: Source address, in kernel space. - * @n: Number of bytes to copy. - * - * Context: User context only. This function may sleep. - * - * Copy data from kernel space to user space. Caller must check - * the specified block with access_ok() before calling this function. - * - * Returns number of bytes that could not be copied. - * On success, this will be zero. - */ -static inline unsigned long __must_check -__copy_to_user(void __user *to, const void *from, unsigned long n) -{ - if (__builtin_constant_p(n) && (n <= 256)) - return uaccess.copy_to_user_small(n, to, from); - else - return uaccess.copy_to_user(n, to, from); -} - -#define __copy_to_user_inatomic __copy_to_user -#define __copy_from_user_inatomic __copy_from_user - -/** * copy_to_user: - Copy a block of data into user space. * @to: Destination address, in user space. * @from: Source address, in kernel space. @@ -235,38 +275,10 @@ static inline unsigned long __must_check copy_to_user(void __user *to, const void *from, unsigned long n) { might_fault(); - if (access_ok(VERIFY_WRITE, to, n)) - n = __copy_to_user(to, from, n); - return n; + return __copy_to_user(to, from, n); } -/** - * __copy_from_user: - Copy a block of data from user space, with less checking. - * @to: Destination address, in kernel space. - * @from: Source address, in user space. - * @n: Number of bytes to copy. - * - * Context: User context only. This function may sleep. - * - * Copy data from user space to kernel space. Caller must check - * the specified block with access_ok() before calling this function. - * - * Returns number of bytes that could not be copied. - * On success, this will be zero. - * - * If some data could not be copied, this function will pad the copied - * data to the requested size using zero bytes. - */ -static inline unsigned long __must_check -__copy_from_user(void *to, const void __user *from, unsigned long n) -{ - if (__builtin_constant_p(n) && (n <= 256)) - return uaccess.copy_from_user_small(n, from, to); - else - return uaccess.copy_from_user(n, from, to); -} - -extern void copy_from_user_overflow(void) +void copy_from_user_overflow(void) #ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS __compiletime_warning("copy_from_user() buffer size is not provably correct") #endif @@ -298,46 +310,38 @@ copy_from_user(void *to, const void __user *from, unsigned long n) copy_from_user_overflow(); return n; } - if (access_ok(VERIFY_READ, from, n)) - n = __copy_from_user(to, from, n); - else - memset(to, 0, n); - return n; + return __copy_from_user(to, from, n); } -static inline unsigned long __must_check -__copy_in_user(void __user *to, const void __user *from, unsigned long n) -{ - return uaccess.copy_in_user(n, to, from); -} +unsigned long __must_check +__copy_in_user(void __user *to, const void __user *from, unsigned long n); static inline unsigned long __must_check copy_in_user(void __user *to, const void __user *from, unsigned long n) { might_fault(); - if (__access_ok(from,n) && __access_ok(to,n)) - n = __copy_in_user(to, from, n); - return n; + return __copy_in_user(to, from, n); } /* * Copy a null terminated string from userspace. */ + +long __strncpy_from_user(char *dst, const char __user *src, long count); + static inline long __must_check strncpy_from_user(char *dst, const char __user *src, long count) { - long res = -EFAULT; might_fault(); - if (access_ok(VERIFY_READ, src, 1)) - res = uaccess.strncpy_from_user(count, src, dst); - return res; + return __strncpy_from_user(dst, src, count); } -static inline unsigned long -strnlen_user(const char __user * src, unsigned long n) +unsigned long __must_check __strnlen_user(const char __user *src, unsigned long count); + +static inline unsigned long strnlen_user(const char __user *src, unsigned long n) { might_fault(); - return uaccess.strnlen_user(n, src); + return __strnlen_user(src, n); } /** @@ -359,20 +363,14 @@ strnlen_user(const char __user * src, unsigned long n) /* * Zero Userspace */ +unsigned long __must_check __clear_user(void __user *to, unsigned long size); -static inline unsigned long __must_check -__clear_user(void __user *to, unsigned long n) -{ - return uaccess.clear_user(n, to); -} - -static inline unsigned long __must_check -clear_user(void __user *to, unsigned long n) +static inline unsigned long __must_check clear_user(void __user *to, unsigned long n) { might_fault(); - if (access_ok(VERIFY_WRITE, to, n)) - n = uaccess.clear_user(n, to); - return n; + return __clear_user(to, n); } +int copy_to_user_real(void __user *dest, void *src, unsigned long count); + #endif /* __S390_UACCESS_H */ diff --git a/arch/s390/include/asm/ucontext.h b/arch/s390/include/asm/ucontext.h deleted file mode 100644 index cfb874e66c9..00000000000 --- a/arch/s390/include/asm/ucontext.h +++ /dev/null @@ -1,35 +0,0 @@ -/* - * include/asm-s390/ucontext.h - * - * S390 version - * - * Derived from "include/asm-i386/ucontext.h" - */ - -#ifndef _ASM_S390_UCONTEXT_H -#define _ASM_S390_UCONTEXT_H - -#define UC_EXTENDED 0x00000001 - -#ifndef __s390x__ - -struct ucontext_extended { - unsigned long uc_flags; - struct ucontext *uc_link; - stack_t uc_stack; - _sigregs uc_mcontext; - unsigned long uc_sigmask[2]; - unsigned long uc_gprs_high[16]; -}; - -#endif - -struct ucontext { - unsigned long uc_flags; - struct ucontext *uc_link; - stack_t uc_stack; - _sigregs uc_mcontext; - sigset_t uc_sigmask; /* mask last for extensibility */ -}; - -#endif /* !_ASM_S390_UCONTEXT_H */ diff --git a/arch/s390/include/asm/unistd.h b/arch/s390/include/asm/unistd.h index 8a8008fe7b8..65188635355 100644 --- a/arch/s390/include/asm/unistd.h +++ b/arch/s390/include/asm/unistd.h @@ -1,377 +1,13 @@ /* - * include/asm-s390/unistd.h - * * S390 version * * Derived from "include/asm-i386/unistd.h" */ - #ifndef _ASM_S390_UNISTD_H_ #define _ASM_S390_UNISTD_H_ -/* - * This file contains the system call numbers. - */ - -#define __NR_exit 1 -#define __NR_fork 2 -#define __NR_read 3 -#define __NR_write 4 -#define __NR_open 5 -#define __NR_close 6 -#define __NR_restart_syscall 7 -#define __NR_creat 8 -#define __NR_link 9 -#define __NR_unlink 10 -#define __NR_execve 11 -#define __NR_chdir 12 -#define __NR_mknod 14 -#define __NR_chmod 15 -#define __NR_lseek 19 -#define __NR_getpid 20 -#define __NR_mount 21 -#define __NR_umount 22 -#define __NR_ptrace 26 -#define __NR_alarm 27 -#define __NR_pause 29 -#define __NR_utime 30 -#define __NR_access 33 -#define __NR_nice 34 -#define __NR_sync 36 -#define __NR_kill 37 -#define __NR_rename 38 -#define __NR_mkdir 39 -#define __NR_rmdir 40 -#define __NR_dup 41 -#define __NR_pipe 42 -#define __NR_times 43 -#define __NR_brk 45 -#define __NR_signal 48 -#define __NR_acct 51 -#define __NR_umount2 52 -#define __NR_ioctl 54 -#define __NR_fcntl 55 -#define __NR_setpgid 57 -#define __NR_umask 60 -#define __NR_chroot 61 -#define __NR_ustat 62 -#define __NR_dup2 63 -#define __NR_getppid 64 -#define __NR_getpgrp 65 -#define __NR_setsid 66 -#define __NR_sigaction 67 -#define __NR_sigsuspend 72 -#define __NR_sigpending 73 -#define __NR_sethostname 74 -#define __NR_setrlimit 75 -#define __NR_getrusage 77 -#define __NR_gettimeofday 78 -#define __NR_settimeofday 79 -#define __NR_symlink 83 -#define __NR_readlink 85 -#define __NR_uselib 86 -#define __NR_swapon 87 -#define __NR_reboot 88 -#define __NR_readdir 89 -#define __NR_mmap 90 -#define __NR_munmap 91 -#define __NR_truncate 92 -#define __NR_ftruncate 93 -#define __NR_fchmod 94 -#define __NR_getpriority 96 -#define __NR_setpriority 97 -#define __NR_statfs 99 -#define __NR_fstatfs 100 -#define __NR_socketcall 102 -#define __NR_syslog 103 -#define __NR_setitimer 104 -#define __NR_getitimer 105 -#define __NR_stat 106 -#define __NR_lstat 107 -#define __NR_fstat 108 -#define __NR_lookup_dcookie 110 -#define __NR_vhangup 111 -#define __NR_idle 112 -#define __NR_wait4 114 -#define __NR_swapoff 115 -#define __NR_sysinfo 116 -#define __NR_ipc 117 -#define __NR_fsync 118 -#define __NR_sigreturn 119 -#define __NR_clone 120 -#define __NR_setdomainname 121 -#define __NR_uname 122 -#define __NR_adjtimex 124 -#define __NR_mprotect 125 -#define __NR_sigprocmask 126 -#define __NR_create_module 127 -#define __NR_init_module 128 -#define __NR_delete_module 129 -#define __NR_get_kernel_syms 130 -#define __NR_quotactl 131 -#define __NR_getpgid 132 -#define __NR_fchdir 133 -#define __NR_bdflush 134 -#define __NR_sysfs 135 -#define __NR_personality 136 -#define __NR_afs_syscall 137 /* Syscall for Andrew File System */ -#define __NR_getdents 141 -#define __NR_flock 143 -#define __NR_msync 144 -#define __NR_readv 145 -#define __NR_writev 146 -#define __NR_getsid 147 -#define __NR_fdatasync 148 -#define __NR__sysctl 149 -#define __NR_mlock 150 -#define __NR_munlock 151 -#define __NR_mlockall 152 -#define __NR_munlockall 153 -#define __NR_sched_setparam 154 -#define __NR_sched_getparam 155 -#define __NR_sched_setscheduler 156 -#define __NR_sched_getscheduler 157 -#define __NR_sched_yield 158 -#define __NR_sched_get_priority_max 159 -#define __NR_sched_get_priority_min 160 -#define __NR_sched_rr_get_interval 161 -#define __NR_nanosleep 162 -#define __NR_mremap 163 -#define __NR_query_module 167 -#define __NR_poll 168 -#define __NR_nfsservctl 169 -#define __NR_prctl 172 -#define __NR_rt_sigreturn 173 -#define __NR_rt_sigaction 174 -#define __NR_rt_sigprocmask 175 -#define __NR_rt_sigpending 176 -#define __NR_rt_sigtimedwait 177 -#define __NR_rt_sigqueueinfo 178 -#define __NR_rt_sigsuspend 179 -#define __NR_pread64 180 -#define __NR_pwrite64 181 -#define __NR_getcwd 183 -#define __NR_capget 184 -#define __NR_capset 185 -#define __NR_sigaltstack 186 -#define __NR_sendfile 187 -#define __NR_getpmsg 188 -#define __NR_putpmsg 189 -#define __NR_vfork 190 -#define __NR_pivot_root 217 -#define __NR_mincore 218 -#define __NR_madvise 219 -#define __NR_getdents64 220 -#define __NR_readahead 222 -#define __NR_setxattr 224 -#define __NR_lsetxattr 225 -#define __NR_fsetxattr 226 -#define __NR_getxattr 227 -#define __NR_lgetxattr 228 -#define __NR_fgetxattr 229 -#define __NR_listxattr 230 -#define __NR_llistxattr 231 -#define __NR_flistxattr 232 -#define __NR_removexattr 233 -#define __NR_lremovexattr 234 -#define __NR_fremovexattr 235 -#define __NR_gettid 236 -#define __NR_tkill 237 -#define __NR_futex 238 -#define __NR_sched_setaffinity 239 -#define __NR_sched_getaffinity 240 -#define __NR_tgkill 241 -/* Number 242 is reserved for tux */ -#define __NR_io_setup 243 -#define __NR_io_destroy 244 -#define __NR_io_getevents 245 -#define __NR_io_submit 246 -#define __NR_io_cancel 247 -#define __NR_exit_group 248 -#define __NR_epoll_create 249 -#define __NR_epoll_ctl 250 -#define __NR_epoll_wait 251 -#define __NR_set_tid_address 252 -#define __NR_fadvise64 253 -#define __NR_timer_create 254 -#define __NR_timer_settime (__NR_timer_create+1) -#define __NR_timer_gettime (__NR_timer_create+2) -#define __NR_timer_getoverrun (__NR_timer_create+3) -#define __NR_timer_delete (__NR_timer_create+4) -#define __NR_clock_settime (__NR_timer_create+5) -#define __NR_clock_gettime (__NR_timer_create+6) -#define __NR_clock_getres (__NR_timer_create+7) -#define __NR_clock_nanosleep (__NR_timer_create+8) -/* Number 263 is reserved for vserver */ -#define __NR_statfs64 265 -#define __NR_fstatfs64 266 -#define __NR_remap_file_pages 267 -/* Number 268 is reserved for new sys_mbind */ -/* Number 269 is reserved for new sys_get_mempolicy */ -/* Number 270 is reserved for new sys_set_mempolicy */ -#define __NR_mq_open 271 -#define __NR_mq_unlink 272 -#define __NR_mq_timedsend 273 -#define __NR_mq_timedreceive 274 -#define __NR_mq_notify 275 -#define __NR_mq_getsetattr 276 -#define __NR_kexec_load 277 -#define __NR_add_key 278 -#define __NR_request_key 279 -#define __NR_keyctl 280 -#define __NR_waitid 281 -#define __NR_ioprio_set 282 -#define __NR_ioprio_get 283 -#define __NR_inotify_init 284 -#define __NR_inotify_add_watch 285 -#define __NR_inotify_rm_watch 286 -/* Number 287 is reserved for new sys_migrate_pages */ -#define __NR_openat 288 -#define __NR_mkdirat 289 -#define __NR_mknodat 290 -#define __NR_fchownat 291 -#define __NR_futimesat 292 -#define __NR_unlinkat 294 -#define __NR_renameat 295 -#define __NR_linkat 296 -#define __NR_symlinkat 297 -#define __NR_readlinkat 298 -#define __NR_fchmodat 299 -#define __NR_faccessat 300 -#define __NR_pselect6 301 -#define __NR_ppoll 302 -#define __NR_unshare 303 -#define __NR_set_robust_list 304 -#define __NR_get_robust_list 305 -#define __NR_splice 306 -#define __NR_sync_file_range 307 -#define __NR_tee 308 -#define __NR_vmsplice 309 -/* Number 310 is reserved for new sys_move_pages */ -#define __NR_getcpu 311 -#define __NR_epoll_pwait 312 -#define __NR_utimes 313 -#define __NR_fallocate 314 -#define __NR_utimensat 315 -#define __NR_signalfd 316 -#define __NR_timerfd 317 -#define __NR_eventfd 318 -#define __NR_timerfd_create 319 -#define __NR_timerfd_settime 320 -#define __NR_timerfd_gettime 321 -#define __NR_signalfd4 322 -#define __NR_eventfd2 323 -#define __NR_inotify_init1 324 -#define __NR_pipe2 325 -#define __NR_dup3 326 -#define __NR_epoll_create1 327 -#define __NR_preadv 328 -#define __NR_pwritev 329 -#define __NR_rt_tgsigqueueinfo 330 -#define __NR_perf_event_open 331 -#define __NR_fanotify_init 332 -#define __NR_fanotify_mark 333 -#define __NR_prlimit64 334 -#define __NR_name_to_handle_at 335 -#define __NR_open_by_handle_at 336 -#define __NR_clock_adjtime 337 -#define __NR_syncfs 338 -#define __NR_setns 339 -#define __NR_process_vm_readv 340 -#define __NR_process_vm_writev 341 -#define NR_syscalls 342 +#include <uapi/asm/unistd.h> -/* - * There are some system calls that are not present on 64 bit, some - * have a different name although they do the same (e.g. __NR_chown32 - * is __NR_chown on 64 bit). - */ -#ifndef __s390x__ - -#define __NR_time 13 -#define __NR_lchown 16 -#define __NR_setuid 23 -#define __NR_getuid 24 -#define __NR_stime 25 -#define __NR_setgid 46 -#define __NR_getgid 47 -#define __NR_geteuid 49 -#define __NR_getegid 50 -#define __NR_setreuid 70 -#define __NR_setregid 71 -#define __NR_getrlimit 76 -#define __NR_getgroups 80 -#define __NR_setgroups 81 -#define __NR_fchown 95 -#define __NR_ioperm 101 -#define __NR_setfsuid 138 -#define __NR_setfsgid 139 -#define __NR__llseek 140 -#define __NR__newselect 142 -#define __NR_setresuid 164 -#define __NR_getresuid 165 -#define __NR_setresgid 170 -#define __NR_getresgid 171 -#define __NR_chown 182 -#define __NR_ugetrlimit 191 /* SuS compliant getrlimit */ -#define __NR_mmap2 192 -#define __NR_truncate64 193 -#define __NR_ftruncate64 194 -#define __NR_stat64 195 -#define __NR_lstat64 196 -#define __NR_fstat64 197 -#define __NR_lchown32 198 -#define __NR_getuid32 199 -#define __NR_getgid32 200 -#define __NR_geteuid32 201 -#define __NR_getegid32 202 -#define __NR_setreuid32 203 -#define __NR_setregid32 204 -#define __NR_getgroups32 205 -#define __NR_setgroups32 206 -#define __NR_fchown32 207 -#define __NR_setresuid32 208 -#define __NR_getresuid32 209 -#define __NR_setresgid32 210 -#define __NR_getresgid32 211 -#define __NR_chown32 212 -#define __NR_setuid32 213 -#define __NR_setgid32 214 -#define __NR_setfsuid32 215 -#define __NR_setfsgid32 216 -#define __NR_fcntl64 221 -#define __NR_sendfile64 223 -#define __NR_fadvise64_64 264 -#define __NR_fstatat64 293 - -#else - -#define __NR_select 142 -#define __NR_getrlimit 191 /* SuS compliant getrlimit */ -#define __NR_lchown 198 -#define __NR_getuid 199 -#define __NR_getgid 200 -#define __NR_geteuid 201 -#define __NR_getegid 202 -#define __NR_setreuid 203 -#define __NR_setregid 204 -#define __NR_getgroups 205 -#define __NR_setgroups 206 -#define __NR_fchown 207 -#define __NR_setresuid 208 -#define __NR_getresuid 209 -#define __NR_setresgid 210 -#define __NR_getresgid 211 -#define __NR_chown 212 -#define __NR_setuid 213 -#define __NR_setgid 214 -#define __NR_setfsuid 215 -#define __NR_setfsgid 216 -#define __NR_newfstatat 293 - -#endif - -#ifdef __KERNEL__ #ifndef CONFIG_64BIT #define __IGNORE_select @@ -390,7 +26,6 @@ #define __IGNORE_recvmmsg #define __IGNORE_sendmmsg -#define __ARCH_WANT_IPC_PARSE_VERSION #define __ARCH_WANT_OLD_READDIR #define __ARCH_WANT_SYS_ALARM #define __ARCH_WANT_SYS_GETHOSTNAME @@ -408,24 +43,15 @@ #define __ARCH_WANT_SYS_OLDUMOUNT #define __ARCH_WANT_SYS_SIGPENDING #define __ARCH_WANT_SYS_SIGPROCMASK -#define __ARCH_WANT_SYS_RT_SIGACTION -#define __ARCH_WANT_SYS_RT_SIGSUSPEND # ifndef CONFIG_64BIT # define __ARCH_WANT_STAT64 # define __ARCH_WANT_SYS_TIME # endif # ifdef CONFIG_COMPAT # define __ARCH_WANT_COMPAT_SYS_TIME -# define __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND # endif +#define __ARCH_WANT_SYS_FORK +#define __ARCH_WANT_SYS_VFORK +#define __ARCH_WANT_SYS_CLONE -/* - * "Conditional" syscalls - * - * What we want is __attribute__((weak,alias("sys_ni_syscall"))), - * but it doesn't work on all toolchains, so we just do it by hand - */ -#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall") - -#endif /* __KERNEL__ */ #endif /* _ASM_S390_UNISTD_H_ */ diff --git a/arch/s390/include/asm/user.h b/arch/s390/include/asm/user.h index 1b050e35fdc..6ed1d188633 100644 --- a/arch/s390/include/asm/user.h +++ b/arch/s390/include/asm/user.h @@ -1,6 +1,4 @@ /* - * include/asm-s390/user.h - * * S390 version * * Derived from "include/asm-i386/usr.h" diff --git a/arch/s390/include/asm/vdso.h b/arch/s390/include/asm/vdso.h index 533f35751ae..bc9746a7d47 100644 --- a/arch/s390/include/asm/vdso.h +++ b/arch/s390/include/asm/vdso.h @@ -1,8 +1,6 @@ #ifndef __S390_VDSO_H__ #define __S390_VDSO_H__ -#ifdef __KERNEL__ - /* Default link addresses for the vDSOs */ #define VDSO32_LBASE 0 #define VDSO64_LBASE 0 @@ -28,8 +26,9 @@ struct vdso_data { __u64 wtom_clock_nsec; /* 0x28 */ __u32 tz_minuteswest; /* Minutes west of Greenwich 0x30 */ __u32 tz_dsttime; /* Type of dst correction 0x34 */ - __u32 ectg_available; - __u32 ntp_mult; /* NTP adjusted multiplier 0x3C */ + __u32 ectg_available; /* ECTG instruction present 0x38 */ + __u32 tk_mult; /* Mult. used for xtime_nsec 0x3c */ + __u32 tk_shift; /* Shift used for xtime_nsec 0x40 */ }; struct vdso_per_cpu_data { @@ -40,12 +39,9 @@ struct vdso_per_cpu_data { extern struct vdso_data *vdso_data; #ifdef CONFIG_64BIT -int vdso_alloc_per_cpu(int cpu, struct _lowcore *lowcore); -void vdso_free_per_cpu(int cpu, struct _lowcore *lowcore); +int vdso_alloc_per_cpu(struct _lowcore *lowcore); +void vdso_free_per_cpu(struct _lowcore *lowcore); #endif #endif /* __ASSEMBLY__ */ - -#endif /* __KERNEL__ */ - #endif /* __S390_VDSO_H__ */ diff --git a/arch/s390/include/asm/vga.h b/arch/s390/include/asm/vga.h new file mode 100644 index 00000000000..d375526c261 --- /dev/null +++ b/arch/s390/include/asm/vga.h @@ -0,0 +1,6 @@ +#ifndef _ASM_S390_VGA_H +#define _ASM_S390_VGA_H + +/* Avoid compile errors due to missing asm/vga.h */ + +#endif /* _ASM_S390_VGA_H */ diff --git a/arch/s390/include/asm/vtime.h b/arch/s390/include/asm/vtime.h new file mode 100644 index 00000000000..af9896c53eb --- /dev/null +++ b/arch/s390/include/asm/vtime.h @@ -0,0 +1,7 @@ +#ifndef _S390_VTIME_H +#define _S390_VTIME_H + +#define __ARCH_HAS_VTIME_ACCOUNT +#define __ARCH_HAS_VTIME_TASK_SWITCH + +#endif /* _S390_VTIME_H */ diff --git a/arch/s390/include/asm/vtimer.h b/arch/s390/include/asm/vtimer.h new file mode 100644 index 00000000000..bfe25d513ad --- /dev/null +++ b/arch/s390/include/asm/vtimer.h @@ -0,0 +1,33 @@ +/* + * Copyright IBM Corp. 2003, 2012 + * Virtual CPU timer + * + * Author(s): Jan Glauber <jan.glauber@de.ibm.com> + */ + +#ifndef _ASM_S390_TIMER_H +#define _ASM_S390_TIMER_H + +#define VTIMER_MAX_SLICE (0x7fffffffffffffffULL) + +struct vtimer_list { + struct list_head entry; + u64 expires; + u64 interval; + void (*function)(unsigned long); + unsigned long data; +}; + +extern void init_virt_timer(struct vtimer_list *timer); +extern void add_virt_timer(struct vtimer_list *timer); +extern void add_virt_timer_periodic(struct vtimer_list *timer); +extern int mod_virt_timer(struct vtimer_list *timer, u64 expires); +extern int mod_virt_timer_periodic(struct vtimer_list *timer, u64 expires); +extern int del_virt_timer(struct vtimer_list *timer); + +extern void init_cpu_vtimer(void); +extern void vtime_init(void); + +extern void vtime_stop_cpu(void); + +#endif /* _ASM_S390_TIMER_H */ diff --git a/arch/s390/include/asm/vtoc.h b/arch/s390/include/asm/vtoc.h deleted file mode 100644 index 8406a2b3157..00000000000 --- a/arch/s390/include/asm/vtoc.h +++ /dev/null @@ -1,215 +0,0 @@ -/* - * include/asm-s390/vtoc.h - * - * This file contains volume label definitions for DASD devices. - * - * (C) Copyright IBM Corp. 2005 - * - * Author(s): Volker Sameske <sameske@de.ibm.com> - * - */ - -#ifndef _ASM_S390_VTOC_H -#define _ASM_S390_VTOC_H - -#include <linux/types.h> - -struct vtoc_ttr -{ - __u16 tt; - __u8 r; -} __attribute__ ((packed)); - -struct vtoc_cchhb -{ - __u16 cc; - __u16 hh; - __u8 b; -} __attribute__ ((packed)); - -struct vtoc_cchh -{ - __u16 cc; - __u16 hh; -} __attribute__ ((packed)); - -struct vtoc_labeldate -{ - __u8 year; - __u16 day; -} __attribute__ ((packed)); - -struct vtoc_volume_label_cdl -{ - char volkey[4]; /* volume key = volume label */ - char vollbl[4]; /* volume label */ - char volid[6]; /* volume identifier */ - __u8 security; /* security byte */ - struct vtoc_cchhb vtoc; /* VTOC address */ - char res1[5]; /* reserved */ - char cisize[4]; /* CI-size for FBA,... */ - /* ...blanks for CKD */ - char blkperci[4]; /* no of blocks per CI (FBA), blanks for CKD */ - char labperci[4]; /* no of labels per CI (FBA), blanks for CKD */ - char res2[4]; /* reserved */ - char lvtoc[14]; /* owner code for LVTOC */ - char res3[29]; /* reserved */ -} __attribute__ ((packed)); - -struct vtoc_volume_label_ldl { - char vollbl[4]; /* volume label */ - char volid[6]; /* volume identifier */ - char res3[69]; /* reserved */ - char ldl_version; /* version number, valid for ldl format */ - __u64 formatted_blocks; /* valid when ldl_version >= f2 */ -} __attribute__ ((packed)); - -struct vtoc_extent -{ - __u8 typeind; /* extent type indicator */ - __u8 seqno; /* extent sequence number */ - struct vtoc_cchh llimit; /* starting point of this extent */ - struct vtoc_cchh ulimit; /* ending point of this extent */ -} __attribute__ ((packed)); - -struct vtoc_dev_const -{ - __u16 DS4DSCYL; /* number of logical cyls */ - __u16 DS4DSTRK; /* number of tracks in a logical cylinder */ - __u16 DS4DEVTK; /* device track length */ - __u8 DS4DEVI; /* non-last keyed record overhead */ - __u8 DS4DEVL; /* last keyed record overhead */ - __u8 DS4DEVK; /* non-keyed record overhead differential */ - __u8 DS4DEVFG; /* flag byte */ - __u16 DS4DEVTL; /* device tolerance */ - __u8 DS4DEVDT; /* number of DSCB's per track */ - __u8 DS4DEVDB; /* number of directory blocks per track */ -} __attribute__ ((packed)); - -struct vtoc_format1_label -{ - char DS1DSNAM[44]; /* data set name */ - __u8 DS1FMTID; /* format identifier */ - char DS1DSSN[6]; /* data set serial number */ - __u16 DS1VOLSQ; /* volume sequence number */ - struct vtoc_labeldate DS1CREDT; /* creation date: ydd */ - struct vtoc_labeldate DS1EXPDT; /* expiration date */ - __u8 DS1NOEPV; /* number of extents on volume */ - __u8 DS1NOBDB; /* no. of bytes used in last direction blk */ - __u8 DS1FLAG1; /* flag 1 */ - char DS1SYSCD[13]; /* system code */ - struct vtoc_labeldate DS1REFD; /* date last referenced */ - __u8 DS1SMSFG; /* system managed storage indicators */ - __u8 DS1SCXTF; /* sec. space extension flag byte */ - __u16 DS1SCXTV; /* secondary space extension value */ - __u8 DS1DSRG1; /* data set organisation byte 1 */ - __u8 DS1DSRG2; /* data set organisation byte 2 */ - __u8 DS1RECFM; /* record format */ - __u8 DS1OPTCD; /* option code */ - __u16 DS1BLKL; /* block length */ - __u16 DS1LRECL; /* record length */ - __u8 DS1KEYL; /* key length */ - __u16 DS1RKP; /* relative key position */ - __u8 DS1DSIND; /* data set indicators */ - __u8 DS1SCAL1; /* secondary allocation flag byte */ - char DS1SCAL3[3]; /* secondary allocation quantity */ - struct vtoc_ttr DS1LSTAR; /* last used track and block on track */ - __u16 DS1TRBAL; /* space remaining on last used track */ - __u16 res1; /* reserved */ - struct vtoc_extent DS1EXT1; /* first extent description */ - struct vtoc_extent DS1EXT2; /* second extent description */ - struct vtoc_extent DS1EXT3; /* third extent description */ - struct vtoc_cchhb DS1PTRDS; /* possible pointer to f2 or f3 DSCB */ -} __attribute__ ((packed)); - -struct vtoc_format4_label -{ - char DS4KEYCD[44]; /* key code for VTOC labels: 44 times 0x04 */ - __u8 DS4IDFMT; /* format identifier */ - struct vtoc_cchhb DS4HPCHR; /* highest address of a format 1 DSCB */ - __u16 DS4DSREC; /* number of available DSCB's */ - struct vtoc_cchh DS4HCCHH; /* CCHH of next available alternate track */ - __u16 DS4NOATK; /* number of remaining alternate tracks */ - __u8 DS4VTOCI; /* VTOC indicators */ - __u8 DS4NOEXT; /* number of extents in VTOC */ - __u8 DS4SMSFG; /* system managed storage indicators */ - __u8 DS4DEVAC; /* number of alternate cylinders. - * Subtract from first two bytes of - * DS4DEVSZ to get number of usable - * cylinders. can be zero. valid - * only if DS4DEVAV on. */ - struct vtoc_dev_const DS4DEVCT; /* device constants */ - char DS4AMTIM[8]; /* VSAM time stamp */ - char DS4AMCAT[3]; /* VSAM catalog indicator */ - char DS4R2TIM[8]; /* VSAM volume/catalog match time stamp */ - char res1[5]; /* reserved */ - char DS4F6PTR[5]; /* pointer to first format 6 DSCB */ - struct vtoc_extent DS4VTOCE; /* VTOC extent description */ - char res2[10]; /* reserved */ - __u8 DS4EFLVL; /* extended free-space management level */ - struct vtoc_cchhb DS4EFPTR; /* pointer to extended free-space info */ - char res3; /* reserved */ - __u32 DS4DCYL; /* number of logical cyls */ - char res4[2]; /* reserved */ - __u8 DS4DEVF2; /* device flags */ - char res5; /* reserved */ -} __attribute__ ((packed)); - -struct vtoc_ds5ext -{ - __u16 t; /* RTA of the first track of free extent */ - __u16 fc; /* number of whole cylinders in free ext. */ - __u8 ft; /* number of remaining free tracks */ -} __attribute__ ((packed)); - -struct vtoc_format5_label -{ - char DS5KEYID[4]; /* key identifier */ - struct vtoc_ds5ext DS5AVEXT; /* first available (free-space) extent. */ - struct vtoc_ds5ext DS5EXTAV[7]; /* seven available extents */ - __u8 DS5FMTID; /* format identifier */ - struct vtoc_ds5ext DS5MAVET[18]; /* eighteen available extents */ - struct vtoc_cchhb DS5PTRDS; /* pointer to next format5 DSCB */ -} __attribute__ ((packed)); - -struct vtoc_ds7ext -{ - __u32 a; /* starting RTA value */ - __u32 b; /* ending RTA value + 1 */ -} __attribute__ ((packed)); - -struct vtoc_format7_label -{ - char DS7KEYID[4]; /* key identifier */ - struct vtoc_ds7ext DS7EXTNT[5]; /* space for 5 extent descriptions */ - __u8 DS7FMTID; /* format identifier */ - struct vtoc_ds7ext DS7ADEXT[11]; /* space for 11 extent descriptions */ - char res1[2]; /* reserved */ - struct vtoc_cchhb DS7PTRDS; /* pointer to next FMT7 DSCB */ -} __attribute__ ((packed)); - -struct vtoc_cms_label { - __u8 label_id[4]; /* Label identifier */ - __u8 vol_id[6]; /* Volid */ - __u16 version_id; /* Version identifier */ - __u32 block_size; /* Disk block size */ - __u32 origin_ptr; /* Disk origin pointer */ - __u32 usable_count; /* Number of usable cylinders/blocks */ - __u32 formatted_count; /* Maximum number of formatted cylinders/ - * blocks */ - __u32 block_count; /* Disk size in CMS blocks */ - __u32 used_count; /* Number of CMS blocks in use */ - __u32 fst_size; /* File Status Table (FST) size */ - __u32 fst_count; /* Number of FSTs per CMS block */ - __u8 format_date[6]; /* Disk FORMAT date */ - __u8 reserved1[2]; - __u32 disk_offset; /* Disk offset when reserved*/ - __u32 map_block; /* Allocation Map Block with next hole */ - __u32 hblk_disp; /* Displacement into HBLK data of next hole */ - __u32 user_disp; /* Displacement into user part of Allocation - * map */ - __u8 reserved2[4]; - __u8 segment_name[8]; /* Name of shared segment */ -} __attribute__ ((packed)); - -#endif /* _ASM_S390_VTOC_H */ diff --git a/arch/s390/include/asm/zcrypt.h b/arch/s390/include/asm/zcrypt.h deleted file mode 100644 index 00d3bbd4411..00000000000 --- a/arch/s390/include/asm/zcrypt.h +++ /dev/null @@ -1,276 +0,0 @@ -/* - * include/asm-s390/zcrypt.h - * - * zcrypt 2.1.0 (user-visible header) - * - * Copyright (C) 2001, 2006 IBM Corporation - * Author(s): Robert Burroughs - * Eric Rossman (edrossma@us.ibm.com) - * - * Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#ifndef __ASM_S390_ZCRYPT_H -#define __ASM_S390_ZCRYPT_H - -#define ZCRYPT_VERSION 2 -#define ZCRYPT_RELEASE 1 -#define ZCRYPT_VARIANT 1 - -#include <linux/ioctl.h> -#include <linux/compiler.h> - -/** - * struct ica_rsa_modexpo - * - * Requirements: - * - outputdatalength is at least as large as inputdatalength. - * - All key parts are right justified in their fields, padded on - * the left with zeroes. - * - length(b_key) = inputdatalength - * - length(n_modulus) = inputdatalength - */ -struct ica_rsa_modexpo { - char __user * inputdata; - unsigned int inputdatalength; - char __user * outputdata; - unsigned int outputdatalength; - char __user * b_key; - char __user * n_modulus; -}; - -/** - * struct ica_rsa_modexpo_crt - * - * Requirements: - * - inputdatalength is even. - * - outputdatalength is at least as large as inputdatalength. - * - All key parts are right justified in their fields, padded on - * the left with zeroes. - * - length(bp_key) = inputdatalength/2 + 8 - * - length(bq_key) = inputdatalength/2 - * - length(np_key) = inputdatalength/2 + 8 - * - length(nq_key) = inputdatalength/2 - * - length(u_mult_inv) = inputdatalength/2 + 8 - */ -struct ica_rsa_modexpo_crt { - char __user * inputdata; - unsigned int inputdatalength; - char __user * outputdata; - unsigned int outputdatalength; - char __user * bp_key; - char __user * bq_key; - char __user * np_prime; - char __user * nq_prime; - char __user * u_mult_inv; -}; - -/** - * CPRBX - * Note that all shorts and ints are big-endian. - * All pointer fields are 16 bytes long, and mean nothing. - * - * A request CPRB is followed by a request_parameter_block. - * - * The request (or reply) parameter block is organized thus: - * function code - * VUD block - * key block - */ -struct CPRBX { - unsigned short cprb_len; /* CPRB length 220 */ - unsigned char cprb_ver_id; /* CPRB version id. 0x02 */ - unsigned char pad_000[3]; /* Alignment pad bytes */ - unsigned char func_id[2]; /* function id 0x5432 */ - unsigned char cprb_flags[4]; /* Flags */ - unsigned int req_parml; /* request parameter buffer len */ - unsigned int req_datal; /* request data buffer */ - unsigned int rpl_msgbl; /* reply message block length */ - unsigned int rpld_parml; /* replied parameter block len */ - unsigned int rpl_datal; /* reply data block len */ - unsigned int rpld_datal; /* replied data block len */ - unsigned int req_extbl; /* request extension block len */ - unsigned char pad_001[4]; /* reserved */ - unsigned int rpld_extbl; /* replied extension block len */ - unsigned char padx000[16 - sizeof (char *)]; - unsigned char * req_parmb; /* request parm block 'address' */ - unsigned char padx001[16 - sizeof (char *)]; - unsigned char * req_datab; /* request data block 'address' */ - unsigned char padx002[16 - sizeof (char *)]; - unsigned char * rpl_parmb; /* reply parm block 'address' */ - unsigned char padx003[16 - sizeof (char *)]; - unsigned char * rpl_datab; /* reply data block 'address' */ - unsigned char padx004[16 - sizeof (char *)]; - unsigned char * req_extb; /* request extension block 'addr'*/ - unsigned char padx005[16 - sizeof (char *)]; - unsigned char * rpl_extb; /* reply extension block 'address'*/ - unsigned short ccp_rtcode; /* server return code */ - unsigned short ccp_rscode; /* server reason code */ - unsigned int mac_data_len; /* Mac Data Length */ - unsigned char logon_id[8]; /* Logon Identifier */ - unsigned char mac_value[8]; /* Mac Value */ - unsigned char mac_content_flgs;/* Mac content flag byte */ - unsigned char pad_002; /* Alignment */ - unsigned short domain; /* Domain */ - unsigned char usage_domain[4];/* Usage domain */ - unsigned char cntrl_domain[4];/* Control domain */ - unsigned char S390enf_mask[4];/* S/390 enforcement mask */ - unsigned char pad_004[36]; /* reserved */ -} __attribute__((packed)); - -/** - * xcRB - */ -struct ica_xcRB { - unsigned short agent_ID; - unsigned int user_defined; - unsigned short request_ID; - unsigned int request_control_blk_length; - unsigned char padding1[16 - sizeof (char *)]; - char __user * request_control_blk_addr; - unsigned int request_data_length; - char padding2[16 - sizeof (char *)]; - char __user * request_data_address; - unsigned int reply_control_blk_length; - char padding3[16 - sizeof (char *)]; - char __user * reply_control_blk_addr; - unsigned int reply_data_length; - char padding4[16 - sizeof (char *)]; - char __user * reply_data_addr; - unsigned short priority_window; - unsigned int status; -} __attribute__((packed)); -#define AUTOSELECT ((unsigned int)0xFFFFFFFF) - -#define ZCRYPT_IOCTL_MAGIC 'z' - -/** - * Interface notes: - * - * The ioctl()s which are implemented (along with relevant details) - * are: - * - * ICARSAMODEXPO - * Perform an RSA operation using a Modulus-Exponent pair - * This takes an ica_rsa_modexpo struct as its arg. - * - * NOTE: please refer to the comments preceding this structure - * for the implementation details for the contents of the - * block - * - * ICARSACRT - * Perform an RSA operation using a Chinese-Remainder Theorem key - * This takes an ica_rsa_modexpo_crt struct as its arg. - * - * NOTE: please refer to the comments preceding this structure - * for the implementation details for the contents of the - * block - * - * ZSECSENDCPRB - * Send an arbitrary CPRB to a crypto card. - * - * Z90STAT_STATUS_MASK - * Return an 64 element array of unsigned chars for the status of - * all devices. - * 0x01: PCICA - * 0x02: PCICC - * 0x03: PCIXCC_MCL2 - * 0x04: PCIXCC_MCL3 - * 0x05: CEX2C - * 0x06: CEX2A - * 0x0d: device is disabled via the proc filesystem - * - * Z90STAT_QDEPTH_MASK - * Return an 64 element array of unsigned chars for the queue - * depth of all devices. - * - * Z90STAT_PERDEV_REQCNT - * Return an 64 element array of unsigned integers for the number - * of successfully completed requests per device since the device - * was detected and made available. - * - * Z90STAT_REQUESTQ_COUNT - * Return an integer count of the number of entries waiting to be - * sent to a device. - * - * Z90STAT_PENDINGQ_COUNT - * Return an integer count of the number of entries sent to all - * devices awaiting the reply. - * - * Z90STAT_TOTALOPEN_COUNT - * Return an integer count of the number of open file handles. - * - * Z90STAT_DOMAIN_INDEX - * Return the integer value of the Cryptographic Domain. - * - * The following ioctls are deprecated and should be no longer used: - * - * Z90STAT_TOTALCOUNT - * Return an integer count of all device types together. - * - * Z90STAT_PCICACOUNT - * Return an integer count of all PCICAs. - * - * Z90STAT_PCICCCOUNT - * Return an integer count of all PCICCs. - * - * Z90STAT_PCIXCCMCL2COUNT - * Return an integer count of all MCL2 PCIXCCs. - * - * Z90STAT_PCIXCCMCL3COUNT - * Return an integer count of all MCL3 PCIXCCs. - * - * Z90STAT_CEX2CCOUNT - * Return an integer count of all CEX2Cs. - * - * Z90STAT_CEX2ACOUNT - * Return an integer count of all CEX2As. - * - * ICAZ90STATUS - * Return some device driver status in a ica_z90_status struct - * This takes an ica_z90_status struct as its arg. - * - * Z90STAT_PCIXCCCOUNT - * Return an integer count of all PCIXCCs (MCL2 + MCL3). - * This is DEPRECATED now that MCL3 PCIXCCs are treated differently from - * MCL2 PCIXCCs. - */ - -/** - * Supported ioctl calls - */ -#define ICARSAMODEXPO _IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x05, 0) -#define ICARSACRT _IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x06, 0) -#define ZSECSENDCPRB _IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x81, 0) - -/* New status calls */ -#define Z90STAT_TOTALCOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x40, int) -#define Z90STAT_PCICACOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x41, int) -#define Z90STAT_PCICCCOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x42, int) -#define Z90STAT_PCIXCCMCL2COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x4b, int) -#define Z90STAT_PCIXCCMCL3COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x4c, int) -#define Z90STAT_CEX2CCOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x4d, int) -#define Z90STAT_CEX2ACOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x4e, int) -#define Z90STAT_REQUESTQ_COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x44, int) -#define Z90STAT_PENDINGQ_COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x45, int) -#define Z90STAT_TOTALOPEN_COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x46, int) -#define Z90STAT_DOMAIN_INDEX _IOR(ZCRYPT_IOCTL_MAGIC, 0x47, int) -#define Z90STAT_STATUS_MASK _IOR(ZCRYPT_IOCTL_MAGIC, 0x48, char[64]) -#define Z90STAT_QDEPTH_MASK _IOR(ZCRYPT_IOCTL_MAGIC, 0x49, char[64]) -#define Z90STAT_PERDEV_REQCNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x4a, int[64]) - -#endif /* __ASM_S390_ZCRYPT_H */ |