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-rw-r--r--arch/s390/include/asm/Kbuild11
-rw-r--r--arch/s390/include/asm/ccwdev.h2
-rw-r--r--arch/s390/include/asm/hugetlb.h4
-rw-r--r--arch/s390/include/asm/ioctls.h2
-rw-r--r--arch/s390/include/asm/local64.h1
-rw-r--r--arch/s390/include/asm/mmu.h7
-rw-r--r--arch/s390/include/asm/mmu_context.h9
-rw-r--r--arch/s390/include/asm/pgtable.h6
-rw-r--r--arch/s390/include/asm/scatterlist.h2
-rw-r--r--arch/s390/include/asm/statfs.h9
-rw-r--r--arch/s390/include/asm/tlb.h3
-rw-r--r--arch/s390/include/asm/tlbflush.h6
-rw-r--r--arch/s390/include/asm/topology.h2
-rw-r--r--arch/s390/include/asm/unistd.h5
14 files changed, 49 insertions, 20 deletions
diff --git a/arch/s390/include/asm/Kbuild b/arch/s390/include/asm/Kbuild
index 63a23415fba..42e512ba8b4 100644
--- a/arch/s390/include/asm/Kbuild
+++ b/arch/s390/include/asm/Kbuild
@@ -1,15 +1,14 @@
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 += 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
-header-y += chsc.h
-
-unifdef-y += cmb.h
-unifdef-y += debug.h
-unifdef-y += chpid.h
-unifdef-y += schid.h
diff --git a/arch/s390/include/asm/ccwdev.h b/arch/s390/include/asm/ccwdev.h
index 1c0030f9b89..f3ba0fa98de 100644
--- a/arch/s390/include/asm/ccwdev.h
+++ b/arch/s390/include/asm/ccwdev.h
@@ -208,6 +208,8 @@ extern void ccw_device_get_id(struct ccw_device *, struct ccw_dev_id *);
extern struct ccw_device *ccw_device_probe_console(void);
extern int ccw_device_force_console(void);
+int ccw_device_siosl(struct ccw_device *);
+
// FIXME: these have to go
extern int _ccw_device_get_subchannel_number(struct ccw_device *);
diff --git a/arch/s390/include/asm/hugetlb.h b/arch/s390/include/asm/hugetlb.h
index 670a1d1745d..bb8343d157b 100644
--- a/arch/s390/include/asm/hugetlb.h
+++ b/arch/s390/include/asm/hugetlb.h
@@ -97,6 +97,7 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
{
pte_t pte = huge_ptep_get(ptep);
+ mm->context.flush_mm = 1;
pmd_clear((pmd_t *) ptep);
return pte;
}
@@ -167,7 +168,8 @@ static inline void huge_ptep_invalidate(struct mm_struct *mm,
({ \
pte_t __pte = huge_ptep_get(__ptep); \
if (pte_write(__pte)) { \
- if (atomic_read(&(__mm)->mm_users) > 1 || \
+ (__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, \
diff --git a/arch/s390/include/asm/ioctls.h b/arch/s390/include/asm/ioctls.h
index 40e481b1b46..2f3d8736361 100644
--- a/arch/s390/include/asm/ioctls.h
+++ b/arch/s390/include/asm/ioctls.h
@@ -60,6 +60,7 @@
#define TCSETSF2 _IOW('T',0x2D, struct termios2)
#define TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
#define TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */
+#define TIOCSIG _IOW('T',0x36, int) /* Generate signal on Pty slave */
#define FIONCLEX 0x5450 /* these numbers need to be adjusted. */
#define FIOCLEX 0x5451
@@ -86,6 +87,7 @@
#define TIOCPKT_START 8
#define TIOCPKT_NOSTOP 16
#define TIOCPKT_DOSTOP 32
+#define TIOCPKT_IOCTL 64
#define TIOCSER_TEMT 0x01 /* Transmitter physically empty */
diff --git a/arch/s390/include/asm/local64.h b/arch/s390/include/asm/local64.h
new file mode 100644
index 00000000000..36c93b5cc23
--- /dev/null
+++ b/arch/s390/include/asm/local64.h
@@ -0,0 +1 @@
+#include <asm-generic/local64.h>
diff --git a/arch/s390/include/asm/mmu.h b/arch/s390/include/asm/mmu.h
index 03be99919d6..78522cdefdd 100644
--- a/arch/s390/include/asm/mmu.h
+++ b/arch/s390/include/asm/mmu.h
@@ -2,6 +2,8 @@
#define __MMU_H
typedef struct {
+ atomic_t attach_count;
+ unsigned int flush_mm;
spinlock_t list_lock;
struct list_head crst_list;
struct list_head pgtable_list;
@@ -13,4 +15,9 @@ typedef struct {
int alloc_pgste; /* cloned contexts will have extended page tables */
} mm_context_t;
+#define INIT_MM_CONTEXT(name) \
+ .context.list_lock = __SPIN_LOCK_UNLOCKED(name.context.list_lock), \
+ .context.crst_list = LIST_HEAD_INIT(name.context.crst_list), \
+ .context.pgtable_list = LIST_HEAD_INIT(name.context.pgtable_list),
+
#endif
diff --git a/arch/s390/include/asm/mmu_context.h b/arch/s390/include/asm/mmu_context.h
index 976e273988c..a6f0e7cc9cd 100644
--- a/arch/s390/include/asm/mmu_context.h
+++ b/arch/s390/include/asm/mmu_context.h
@@ -11,11 +11,14 @@
#include <asm/pgalloc.h>
#include <asm/uaccess.h>
+#include <asm/tlbflush.h>
#include <asm-generic/mm_hooks.h>
static inline int init_new_context(struct task_struct *tsk,
struct mm_struct *mm)
{
+ 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;
@@ -76,6 +79,12 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
{
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);
+ atomic_inc(&next->context.attach_count);
+ /* Check for TLBs not flushed yet */
+ if (next->context.flush_mm)
+ __tlb_flush_mm(next);
}
#define enter_lazy_tlb(mm,tsk) do { } while (0)
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index 89a504c3f12..3157441ee1d 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -880,7 +880,8 @@ static inline void ptep_invalidate(struct mm_struct *mm,
#define ptep_get_and_clear(__mm, __address, __ptep) \
({ \
pte_t __pte = *(__ptep); \
- if (atomic_read(&(__mm)->mm_users) > 1 || \
+ (__mm)->context.flush_mm = 1; \
+ if (atomic_read(&(__mm)->context.attach_count) > 1 || \
(__mm) != current->active_mm) \
ptep_invalidate(__mm, __address, __ptep); \
else \
@@ -923,7 +924,8 @@ static inline pte_t ptep_get_and_clear_full(struct mm_struct *mm,
({ \
pte_t __pte = *(__ptep); \
if (pte_write(__pte)) { \
- if (atomic_read(&(__mm)->mm_users) > 1 || \
+ (__mm)->context.flush_mm = 1; \
+ if (atomic_read(&(__mm)->context.attach_count) > 1 || \
(__mm) != current->active_mm) \
ptep_invalidate(__mm, __addr, __ptep); \
set_pte_at(__mm, __addr, __ptep, pte_wrprotect(__pte)); \
diff --git a/arch/s390/include/asm/scatterlist.h b/arch/s390/include/asm/scatterlist.h
index be44d94cba5..35d786fe93a 100644
--- a/arch/s390/include/asm/scatterlist.h
+++ b/arch/s390/include/asm/scatterlist.h
@@ -1,3 +1 @@
-#define ISA_DMA_THRESHOLD (~0UL)
-
#include <asm-generic/scatterlist.h>
diff --git a/arch/s390/include/asm/statfs.h b/arch/s390/include/asm/statfs.h
index 06cc70307ec..3be7fbd406c 100644
--- a/arch/s390/include/asm/statfs.h
+++ b/arch/s390/include/asm/statfs.h
@@ -33,7 +33,8 @@ struct statfs {
__kernel_fsid_t f_fsid;
int f_namelen;
int f_frsize;
- int f_spare[5];
+ int f_flags;
+ int f_spare[4];
};
struct statfs64 {
@@ -47,7 +48,8 @@ struct statfs64 {
__kernel_fsid_t f_fsid;
int f_namelen;
int f_frsize;
- int f_spare[5];
+ int f_flags;
+ int f_spare[4];
};
struct compat_statfs64 {
@@ -61,7 +63,8 @@ struct compat_statfs64 {
__kernel_fsid_t f_fsid;
__u32 f_namelen;
__u32 f_frsize;
- __u32 f_spare[5];
+ __u32 f_flags;
+ __u32 f_spare[4];
};
#endif /* __s390x__ */
diff --git a/arch/s390/include/asm/tlb.h b/arch/s390/include/asm/tlb.h
index 81150b05368..fd1c00d08bf 100644
--- a/arch/s390/include/asm/tlb.h
+++ b/arch/s390/include/asm/tlb.h
@@ -50,8 +50,7 @@ static inline struct mmu_gather *tlb_gather_mmu(struct mm_struct *mm,
struct mmu_gather *tlb = &get_cpu_var(mmu_gathers);
tlb->mm = mm;
- tlb->fullmm = full_mm_flush || (num_online_cpus() == 1) ||
- (atomic_read(&mm->mm_users) <= 1 && mm == current->active_mm);
+ tlb->fullmm = full_mm_flush;
tlb->nr_ptes = 0;
tlb->nr_pxds = TLB_NR_PTRS;
if (tlb->fullmm)
diff --git a/arch/s390/include/asm/tlbflush.h b/arch/s390/include/asm/tlbflush.h
index 304cffa623e..29d5d6d4bec 100644
--- a/arch/s390/include/asm/tlbflush.h
+++ b/arch/s390/include/asm/tlbflush.h
@@ -94,8 +94,12 @@ static inline void __tlb_flush_mm(struct mm_struct * mm)
static inline void __tlb_flush_mm_cond(struct mm_struct * mm)
{
- if (atomic_read(&mm->mm_users) <= 1 && mm == current->active_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);
}
/*
diff --git a/arch/s390/include/asm/topology.h b/arch/s390/include/asm/topology.h
index dc8a67297d0..831bd033ea7 100644
--- a/arch/s390/include/asm/topology.h
+++ b/arch/s390/include/asm/topology.h
@@ -30,8 +30,6 @@ static inline void s390_init_cpu_topology(void)
};
#endif
-#define SD_MC_INIT SD_CPU_INIT
-
#include <asm-generic/topology.h>
#endif /* _ASM_S390_TOPOLOGY_H */
diff --git a/arch/s390/include/asm/unistd.h b/arch/s390/include/asm/unistd.h
index 5f0075150a6..1049ef27c15 100644
--- a/arch/s390/include/asm/unistd.h
+++ b/arch/s390/include/asm/unistd.h
@@ -269,7 +269,10 @@
#define __NR_pwritev 329
#define __NR_rt_tgsigqueueinfo 330
#define __NR_perf_event_open 331
-#define NR_syscalls 332
+#define __NR_fanotify_init 332
+#define __NR_fanotify_mark 333
+#define __NR_prlimit64 334
+#define NR_syscalls 335
/*
* There are some system calls that are not present on 64 bit, some
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-30 20:44:31 +0000