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-rw-r--r--arch/parisc/kernel/asm-offsets.c15
-rw-r--r--arch/parisc/kernel/cache.c8
-rw-r--r--arch/parisc/kernel/entry.S52
-rw-r--r--arch/parisc/kernel/module.c1
-rw-r--r--arch/parisc/kernel/pci-dma.c2
-rw-r--r--arch/parisc/kernel/pci.c18
-rw-r--r--arch/parisc/kernel/process.c1
-rw-r--r--arch/parisc/kernel/signal.c4
-rw-r--r--arch/parisc/kernel/signal32.c1
-rw-r--r--arch/parisc/kernel/smp.c1
-rw-r--r--arch/parisc/kernel/sys_parisc.c15
-rw-r--r--arch/parisc/kernel/syscall.S32
-rw-r--r--arch/parisc/kernel/syscall_table.S4
-rw-r--r--arch/parisc/kernel/time.c29
-rw-r--r--arch/parisc/kernel/unaligned.c14
15 files changed, 70 insertions, 127 deletions
diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index ec787b411e9..dcd55103a4b 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -45,8 +45,12 @@
#else
#define FRAME_SIZE 64
#endif
+#define FRAME_ALIGN 64
-#define align(x,y) (((x)+FRAME_SIZE+(y)-1) - (((x)+(y)-1)%(y)))
+/* Add FRAME_SIZE to the size x and align it to y. All definitions
+ * that use align_frame will include space for a frame.
+ */
+#define align_frame(x,y) (((x)+FRAME_SIZE+(y)-1) - (((x)+(y)-1)%(y)))
int main(void)
{
@@ -146,7 +150,8 @@ int main(void)
DEFINE(TASK_PT_IOR, offsetof(struct task_struct, thread.regs.ior));
BLANK();
DEFINE(TASK_SZ, sizeof(struct task_struct));
- DEFINE(TASK_SZ_ALGN, align(sizeof(struct task_struct), 64));
+ /* TASK_SZ_ALGN includes space for a stack frame. */
+ DEFINE(TASK_SZ_ALGN, align_frame(sizeof(struct task_struct), FRAME_ALIGN));
BLANK();
DEFINE(PT_PSW, offsetof(struct pt_regs, gr[ 0]));
DEFINE(PT_GR1, offsetof(struct pt_regs, gr[ 1]));
@@ -233,7 +238,8 @@ int main(void)
DEFINE(PT_ISR, offsetof(struct pt_regs, isr));
DEFINE(PT_IOR, offsetof(struct pt_regs, ior));
DEFINE(PT_SIZE, sizeof(struct pt_regs));
- DEFINE(PT_SZ_ALGN, align(sizeof(struct pt_regs), 64));
+ /* PT_SZ_ALGN includes space for a stack frame. */
+ DEFINE(PT_SZ_ALGN, align_frame(sizeof(struct pt_regs), FRAME_ALIGN));
BLANK();
DEFINE(TI_TASK, offsetof(struct thread_info, task));
DEFINE(TI_EXEC_DOMAIN, offsetof(struct thread_info, exec_domain));
@@ -242,7 +248,8 @@ int main(void)
DEFINE(TI_SEGMENT, offsetof(struct thread_info, addr_limit));
DEFINE(TI_PRE_COUNT, offsetof(struct thread_info, preempt_count));
DEFINE(THREAD_SZ, sizeof(struct thread_info));
- DEFINE(THREAD_SZ_ALGN, align(sizeof(struct thread_info), 64));
+ /* THREAD_SZ_ALGN includes space for a stack frame. */
+ DEFINE(THREAD_SZ_ALGN, align_frame(sizeof(struct thread_info), FRAME_ALIGN));
BLANK();
DEFINE(ICACHE_BASE, offsetof(struct pdc_cache_info, ic_base));
DEFINE(ICACHE_STRIDE, offsetof(struct pdc_cache_info, ic_stride));
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index b6ed34de14e..d054f3da3ff 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -68,9 +68,9 @@ flush_cache_all_local(void)
EXPORT_SYMBOL(flush_cache_all_local);
void
-update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t pte)
+update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t *ptep)
{
- struct page *page = pte_page(pte);
+ struct page *page = pte_page(*ptep);
if (pfn_valid(page_to_pfn(page)) && page_mapping(page) &&
test_bit(PG_dcache_dirty, &page->flags)) {
@@ -171,14 +171,14 @@ parisc_cache_init(void)
cache_info.ic_conf.cc_cst,
cache_info.ic_conf.cc_hv);
- printk("D-TLB conf: sh %d page %d cst %d aid %d pad1 %d \n",
+ printk("D-TLB conf: sh %d page %d cst %d aid %d pad1 %d\n",
cache_info.dt_conf.tc_sh,
cache_info.dt_conf.tc_page,
cache_info.dt_conf.tc_cst,
cache_info.dt_conf.tc_aid,
cache_info.dt_conf.tc_pad1);
- printk("I-TLB conf: sh %d page %d cst %d aid %d pad1 %d \n",
+ printk("I-TLB conf: sh %d page %d cst %d aid %d pad1 %d\n",
cache_info.it_conf.tc_sh,
cache_info.it_conf.tc_page,
cache_info.it_conf.tc_cst,
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 3a44f7f704f..6337adef30f 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -364,32 +364,6 @@
.align 32
.endm
- /* The following are simple 32 vs 64 bit instruction
- * abstractions for the macros */
- .macro EXTR reg1,start,length,reg2
-#ifdef CONFIG_64BIT
- extrd,u \reg1,32+(\start),\length,\reg2
-#else
- extrw,u \reg1,\start,\length,\reg2
-#endif
- .endm
-
- .macro DEP reg1,start,length,reg2
-#ifdef CONFIG_64BIT
- depd \reg1,32+(\start),\length,\reg2
-#else
- depw \reg1,\start,\length,\reg2
-#endif
- .endm
-
- .macro DEPI val,start,length,reg
-#ifdef CONFIG_64BIT
- depdi \val,32+(\start),\length,\reg
-#else
- depwi \val,\start,\length,\reg
-#endif
- .endm
-
/* In LP64, the space contains part of the upper 32 bits of the
* fault. We have to extract this and place it in the va,
* zeroing the corresponding bits in the space register */
@@ -442,19 +416,19 @@
*/
.macro L2_ptep pmd,pte,index,va,fault
#if PT_NLEVELS == 3
- EXTR \va,31-ASM_PMD_SHIFT,ASM_BITS_PER_PMD,\index
+ extru \va,31-ASM_PMD_SHIFT,ASM_BITS_PER_PMD,\index
#else
- EXTR \va,31-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index
+ extru \va,31-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index
#endif
- DEP %r0,31,PAGE_SHIFT,\pmd /* clear offset */
+ dep %r0,31,PAGE_SHIFT,\pmd /* clear offset */
copy %r0,\pte
ldw,s \index(\pmd),\pmd
bb,>=,n \pmd,_PxD_PRESENT_BIT,\fault
- DEP %r0,31,PxD_FLAG_SHIFT,\pmd /* clear flags */
+ dep %r0,31,PxD_FLAG_SHIFT,\pmd /* clear flags */
copy \pmd,%r9
SHLREG %r9,PxD_VALUE_SHIFT,\pmd
- EXTR \va,31-PAGE_SHIFT,ASM_BITS_PER_PTE,\index
- DEP %r0,31,PAGE_SHIFT,\pmd /* clear offset */
+ extru \va,31-PAGE_SHIFT,ASM_BITS_PER_PTE,\index
+ dep %r0,31,PAGE_SHIFT,\pmd /* clear offset */
shladd \index,BITS_PER_PTE_ENTRY,\pmd,\pmd
LDREG %r0(\pmd),\pte /* pmd is now pte */
bb,>=,n \pte,_PAGE_PRESENT_BIT,\fault
@@ -605,7 +579,7 @@
depdi 0,31,32,\tmp
#endif
copy \va,\tmp1
- DEPI 0,31,23,\tmp1
+ depi 0,31,23,\tmp1
cmpb,COND(<>),n \tmp,\tmp1,\fault
ldi (_PAGE_DIRTY|_PAGE_WRITE|_PAGE_READ),\prot
depd,z \prot,8,7,\prot
@@ -997,13 +971,6 @@ intr_restore:
rfi
nop
- nop
- nop
- nop
- nop
- nop
- nop
- nop
#ifndef CONFIG_PREEMPT
# define intr_do_preempt intr_restore
@@ -2076,9 +2043,10 @@ syscall_restore:
LDREG TASK_PT_GR31(%r1),%r31 /* restore syscall rp */
/* NOTE: We use rsm/ssm pair to make this operation atomic */
+ LDREG TASK_PT_GR30(%r1),%r1 /* Get user sp */
rsm PSW_SM_I, %r0
- LDREG TASK_PT_GR30(%r1),%r30 /* restore user sp */
- mfsp %sr3,%r1 /* Get users space id */
+ copy %r1,%r30 /* Restore user sp */
+ mfsp %sr3,%r1 /* Get user space id */
mtsp %r1,%sr7 /* Restore sr7 */
ssm PSW_SM_I, %r0
diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index 212074653df..159a2b81e90 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -61,6 +61,7 @@
#include <linux/string.h>
#include <linux/kernel.h>
#include <linux/bug.h>
+#include <linux/slab.h>
#include <asm/unwind.h>
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index c07f618ff7d..a029f74a3c5 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -18,11 +18,11 @@
*/
#include <linux/init.h>
+#include <linux/gfp.h>
#include <linux/mm.h>
#include <linux/pci.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
-#include <linux/slab.h>
#include <linux/string.h>
#include <linux/types.h>
#include <linux/scatterlist.h>
diff --git a/arch/parisc/kernel/pci.c b/arch/parisc/kernel/pci.c
index f7064abc3bb..9efd9740531 100644
--- a/arch/parisc/kernel/pci.c
+++ b/arch/parisc/kernel/pci.c
@@ -13,12 +13,10 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/pci.h>
-#include <linux/slab.h>
#include <linux/types.h>
#include <asm/io.h>
#include <asm/system.h>
-#include <asm/cache.h> /* for L1_CACHE_BYTES */
#include <asm/superio.h>
#define DEBUG_RESOURCES 0
@@ -123,6 +121,10 @@ static int __init pcibios_init(void)
} else {
printk(KERN_WARNING "pci_bios != NULL but init() is!\n");
}
+
+ /* Set the CLS for PCI as early as possible. */
+ pci_cache_line_size = pci_dfl_cache_line_size;
+
return 0;
}
@@ -171,7 +173,7 @@ void pcibios_set_master(struct pci_dev *dev)
** upper byte is PCI_LATENCY_TIMER.
*/
pci_write_config_word(dev, PCI_CACHE_LINE_SIZE,
- (0x80 << 8) | (L1_CACHE_BYTES / sizeof(u32)));
+ (0x80 << 8) | pci_cache_line_size);
}
@@ -254,10 +256,10 @@ EXPORT_SYMBOL(pcibios_bus_to_resource);
* Since we are just checking candidates, don't use any fields other
* than res->start.
*/
-void pcibios_align_resource(void *data, struct resource *res,
+resource_size_t pcibios_align_resource(void *data, const struct resource *res,
resource_size_t size, resource_size_t alignment)
{
- resource_size_t mask, align;
+ resource_size_t mask, align, start = res->start;
DBG_RES("pcibios_align_resource(%s, (%p) [%lx,%lx]/%x, 0x%lx, 0x%lx)\n",
pci_name(((struct pci_dev *) data)),
@@ -269,10 +271,10 @@ void pcibios_align_resource(void *data, struct resource *res,
/* Align to largest of MIN or input size */
mask = max(alignment, align) - 1;
- res->start += mask;
- res->start &= ~mask;
+ start += mask;
+ start &= ~mask;
- /* The caller updates the end field, we don't. */
+ return start;
}
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index 1f3aa8db020..76332dadc6e 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -43,6 +43,7 @@
#include <linux/personality.h>
#include <linux/ptrace.h>
#include <linux/sched.h>
+#include <linux/slab.h>
#include <linux/stddef.h>
#include <linux/unistd.h>
#include <linux/kallsyms.h>
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index fb37ac52e46..35c827e94e3 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -468,7 +468,9 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
- tracehook_signal_handler(sig, info, ka, regs, 0);
+ tracehook_signal_handler(sig, info, ka, regs,
+ test_thread_flag(TIF_SINGLESTEP) ||
+ test_thread_flag(TIF_BLOCKSTEP));
return 1;
}
diff --git a/arch/parisc/kernel/signal32.c b/arch/parisc/kernel/signal32.c
index fb59852006d..e1413243076 100644
--- a/arch/parisc/kernel/signal32.c
+++ b/arch/parisc/kernel/signal32.c
@@ -23,7 +23,6 @@
*/
#include <linux/compat.h>
-#include <linux/slab.h>
#include <linux/module.h>
#include <linux/unistd.h>
#include <linux/init.h>
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 3f2fce8ce6b..69d63d354ef 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -18,7 +18,6 @@
*/
#include <linux/types.h>
#include <linux/spinlock.h>
-#include <linux/slab.h>
#include <linux/kernel.h>
#include <linux/module.h>
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index 9147391afb0..c9b932260f4 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -234,18 +234,3 @@ long parisc_personality(unsigned long personality)
return err;
}
-
-long parisc_newuname(struct new_utsname __user *name)
-{
- int err = sys_newuname(name);
-
-#ifdef CONFIG_COMPAT
- if (!err && personality(current->personality) == PER_LINUX32) {
- if (__put_user(0, name->machine + 6) ||
- __put_user(0, name->machine + 7))
- err = -EFAULT;
- }
-#endif
-
- return err;
-}
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index f5f96021caa..68e75ce838d 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -47,18 +47,17 @@ ENTRY(linux_gateway_page)
KILL_INSN
.endr
- /* ADDRESS 0xb0 to 0xb4, lws uses 1 insns for entry */
+ /* ADDRESS 0xb0 to 0xb8, lws uses two insns for entry */
/* Light-weight-syscall entry must always be located at 0xb0 */
/* WARNING: Keep this number updated with table size changes */
#define __NR_lws_entries (2)
lws_entry:
- /* Unconditional branch to lws_start, located on the
- same gateway page */
- b,n lws_start
+ gate lws_start, %r0 /* increase privilege */
+ depi 3, 31, 2, %r31 /* Ensure we return into user mode. */
- /* Fill from 0xb4 to 0xe0 */
- .rept 11
+ /* Fill from 0xb8 to 0xe0 */
+ .rept 10
KILL_INSN
.endr
@@ -423,9 +422,6 @@ tracesys_sigexit:
*********************************************************/
lws_start:
- /* Gate and ensure we return to userspace */
- gate .+8, %r0
- depi 3, 31, 2, %r31 /* Ensure we return to userspace */
#ifdef CONFIG_64BIT
/* FIXME: If we are a 64-bit kernel just
@@ -442,7 +438,7 @@ lws_start:
#endif
/* Is the lws entry number valid? */
- comiclr,>>= __NR_lws_entries, %r20, %r0
+ comiclr,>> __NR_lws_entries, %r20, %r0
b,n lws_exit_nosys
/* WARNING: Trashing sr2 and sr3 */
@@ -473,7 +469,7 @@ lws_exit:
/* now reset the lowest bit of sp if it was set */
xor %r30,%r1,%r30
#endif
- be,n 0(%sr3, %r31)
+ be,n 0(%sr7, %r31)
@@ -529,7 +525,6 @@ lws_compare_and_swap32:
#endif
lws_compare_and_swap:
-#ifdef CONFIG_SMP
/* Load start of lock table */
ldil L%lws_lock_start, %r20
ldo R%lws_lock_start(%r20), %r28
@@ -572,8 +567,6 @@ cas_wouldblock:
ldo 2(%r0), %r28 /* 2nd case */
b lws_exit /* Contended... */
ldo -EAGAIN(%r0), %r21 /* Spin in userspace */
-#endif
-/* CONFIG_SMP */
/*
prev = *addr;
@@ -601,13 +594,11 @@ cas_action:
1: ldw 0(%sr3,%r26), %r28
sub,<> %r28, %r25, %r0
2: stw %r24, 0(%sr3,%r26)
-#ifdef CONFIG_SMP
/* Free lock */
stw %r20, 0(%sr2,%r20)
-# if ENABLE_LWS_DEBUG
+#if ENABLE_LWS_DEBUG
/* Clear thread register indicator */
stw %r0, 4(%sr2,%r20)
-# endif
#endif
/* Return to userspace, set no error */
b lws_exit
@@ -615,12 +606,10 @@ cas_action:
3:
/* Error occured on load or store */
-#ifdef CONFIG_SMP
/* Free lock */
stw %r20, 0(%sr2,%r20)
-# if ENABLE_LWS_DEBUG
+#if ENABLE_LWS_DEBUG
stw %r0, 4(%sr2,%r20)
-# endif
#endif
b lws_exit
ldo -EFAULT(%r0),%r21 /* set errno */
@@ -672,7 +661,6 @@ ENTRY(sys_call_table64)
END(sys_call_table64)
#endif
-#ifdef CONFIG_SMP
/*
All light-weight-syscall atomic operations
will use this set of locks
@@ -694,8 +682,6 @@ ENTRY(lws_lock_start)
.endr
END(lws_lock_start)
.previous
-#endif
-/* CONFIG_SMP for lws_lock_start */
.end
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 01c4fcf8f48..3d52c978738 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -127,7 +127,7 @@
ENTRY_SAME(socketpair)
ENTRY_SAME(setpgid)
ENTRY_SAME(send)
- ENTRY_OURS(newuname)
+ ENTRY_SAME(newuname)
ENTRY_SAME(umask) /* 60 */
ENTRY_SAME(chroot)
ENTRY_COMP(ustat)
@@ -417,6 +417,8 @@
ENTRY_COMP(pwritev)
ENTRY_COMP(rt_tgsigqueueinfo)
ENTRY_SAME(perf_event_open)
+ ENTRY_COMP(recvmmsg)
+ ENTRY_SAME(accept4) /* 320 */
/* Nothing yet */
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index a79c6f9e7e2..05511ccb61d 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -250,9 +250,21 @@ static int __init rtc_init(void)
}
module_init(rtc_init);
-void __init time_init(void)
+void read_persistent_clock(struct timespec *ts)
{
static struct pdc_tod tod_data;
+ if (pdc_tod_read(&tod_data) == 0) {
+ ts->tv_sec = tod_data.tod_sec;
+ ts->tv_nsec = tod_data.tod_usec * 1000;
+ } else {
+ printk(KERN_ERR "Error reading tod clock\n");
+ ts->tv_sec = 0;
+ ts->tv_nsec = 0;
+ }
+}
+
+void __init time_init(void)
+{
unsigned long current_cr16_khz;
clocktick = (100 * PAGE0->mem_10msec) / HZ;
@@ -264,19 +276,4 @@ void __init time_init(void)
clocksource_cr16.mult = clocksource_khz2mult(current_cr16_khz,
clocksource_cr16.shift);
clocksource_register(&clocksource_cr16);
-
- if (pdc_tod_read(&tod_data) == 0) {
- unsigned long flags;
-
- write_seqlock_irqsave(&xtime_lock, flags);
- xtime.tv_sec = tod_data.tod_sec;
- xtime.tv_nsec = tod_data.tod_usec * 1000;
- set_normalized_timespec(&wall_to_monotonic,
- -xtime.tv_sec, -xtime.tv_nsec);
- write_sequnlock_irqrestore(&xtime_lock, flags);
- } else {
- printk(KERN_ERR "Error reading tod clock\n");
- xtime.tv_sec = 0;
- xtime.tv_nsec = 0;
- }
}
diff --git a/arch/parisc/kernel/unaligned.c b/arch/parisc/kernel/unaligned.c
index e6f4b7a4b7e..92d977bb5ea 100644
--- a/arch/parisc/kernel/unaligned.c
+++ b/arch/parisc/kernel/unaligned.c
@@ -25,6 +25,7 @@
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/signal.h>
+#include <linux/ratelimit.h>
#include <asm/uaccess.h>
/* #define DEBUG_UNALIGNED 1 */
@@ -446,8 +447,7 @@ static int emulate_std(struct pt_regs *regs, int frreg, int flop)
void handle_unaligned(struct pt_regs *regs)
{
- static unsigned long unaligned_count = 0;
- static unsigned long last_time = 0;
+ static DEFINE_RATELIMIT_STATE(ratelimit, 5 * HZ, 5);
unsigned long newbase = R1(regs->iir)?regs->gr[R1(regs->iir)]:0;
int modify = 0;
int ret = ERR_NOTHANDLED;
@@ -460,14 +460,8 @@ void handle_unaligned(struct pt_regs *regs)
goto force_sigbus;
}
- if (unaligned_count > 5 &&
- time_after(jiffies, last_time + 5 * HZ)) {
- unaligned_count = 0;
- last_time = jiffies;
- }
-
- if (!(current->thread.flags & PARISC_UAC_NOPRINT)
- && ++unaligned_count < 5) {
+ if (!(current->thread.flags & PARISC_UAC_NOPRINT) &&
+ __ratelimit(&ratelimit)) {
char buf[256];
sprintf(buf, "%s(%d): unaligned access to 0x" RFMT " at ip=0x" RFMT "\n",
current->comm, task_pid_nr(current), regs->ior, regs->iaoq[0]);
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2025-08-04 16:34:01 +0000