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-rw-r--r--arch/sparc/kernel/entry.h7
-rw-r--r--arch/sparc/kernel/leon_kernel.c6
-rw-r--r--arch/sparc/kernel/pci_impl.h2
-rw-r--r--arch/sparc/kernel/perf_event.c22
-rw-r--r--arch/sparc/kernel/process_64.c42
-rw-r--r--arch/sparc/kernel/ptrace_64.c4
-rw-r--r--arch/sparc/kernel/setup_64.c21
-rw-r--r--arch/sparc/kernel/signal_64.c4
-rw-r--r--arch/sparc/kernel/sys32.S2
-rw-r--r--arch/sparc/kernel/sys_sparc_32.c27
-rw-r--r--arch/sparc/kernel/sys_sparc_64.c155
-rw-r--r--arch/sparc/kernel/syscalls.S14
-rw-r--r--arch/sparc/kernel/systbls_32.S1
-rw-r--r--arch/sparc/kernel/systbls_64.S4
-rw-r--r--arch/sparc/kernel/unaligned_64.c36
-rw-r--r--arch/sparc/kernel/visemul.c23
-rw-r--r--arch/sparc/kernel/vmlinux.lds.S5
-rw-r--r--arch/sparc/kernel/winfixup.S2
18 files changed, 183 insertions, 194 deletions
diff --git a/arch/sparc/kernel/entry.h b/arch/sparc/kernel/entry.h
index 0c218e4c0881..cc3c5cb47cda 100644
--- a/arch/sparc/kernel/entry.h
+++ b/arch/sparc/kernel/entry.h
@@ -59,6 +59,13 @@ struct popc_6insn_patch_entry {
extern struct popc_6insn_patch_entry __popc_6insn_patch,
__popc_6insn_patch_end;
+struct pause_patch_entry {
+ unsigned int addr;
+ unsigned int insns[3];
+};
+extern struct pause_patch_entry __pause_3insn_patch,
+ __pause_3insn_patch_end;
+
extern void __init per_cpu_patch(void);
extern void sun4v_patch_1insn_range(struct sun4v_1insn_patch_entry *,
struct sun4v_1insn_patch_entry *);
diff --git a/arch/sparc/kernel/leon_kernel.c b/arch/sparc/kernel/leon_kernel.c
index f8b6eee40bde..87f60ee65433 100644
--- a/arch/sparc/kernel/leon_kernel.c
+++ b/arch/sparc/kernel/leon_kernel.c
@@ -56,11 +56,13 @@ static inline unsigned int leon_eirq_get(int cpu)
static void leon_handle_ext_irq(unsigned int irq, struct irq_desc *desc)
{
unsigned int eirq;
+ struct irq_bucket *p;
int cpu = sparc_leon3_cpuid();
eirq = leon_eirq_get(cpu);
- if ((eirq & 0x10) && irq_map[eirq]->irq) /* bit4 tells if IRQ happened */
- generic_handle_irq(irq_map[eirq]->irq);
+ p = irq_map[eirq];
+ if ((eirq & 0x10) && p && p->irq) /* bit4 tells if IRQ happened */
+ generic_handle_irq(p->irq);
}
/* The extended IRQ controller has been found, this function registers it */
diff --git a/arch/sparc/kernel/pci_impl.h b/arch/sparc/kernel/pci_impl.h
index 918a2031c8bb..5f688531f48c 100644
--- a/arch/sparc/kernel/pci_impl.h
+++ b/arch/sparc/kernel/pci_impl.h
@@ -88,7 +88,7 @@ struct pci_pbm_info {
int chip_revision;
/* Name used for top-level resources. */
- char *name;
+ const char *name;
/* OBP specific information. */
struct platform_device *op;
diff --git a/arch/sparc/kernel/perf_event.c b/arch/sparc/kernel/perf_event.c
index 885a8af74064..b5c38faa4ead 100644
--- a/arch/sparc/kernel/perf_event.c
+++ b/arch/sparc/kernel/perf_event.c
@@ -1762,15 +1762,25 @@ static void perf_callchain_user_32(struct perf_callchain_entry *entry,
ufp = regs->u_regs[UREG_I6] & 0xffffffffUL;
do {
- struct sparc_stackf32 *usf, sf;
unsigned long pc;
- usf = (struct sparc_stackf32 *) ufp;
- if (__copy_from_user_inatomic(&sf, usf, sizeof(sf)))
- break;
+ if (thread32_stack_is_64bit(ufp)) {
+ struct sparc_stackf *usf, sf;
- pc = sf.callers_pc;
- ufp = (unsigned long)sf.fp;
+ ufp += STACK_BIAS;
+ usf = (struct sparc_stackf *) ufp;
+ if (__copy_from_user_inatomic(&sf, usf, sizeof(sf)))
+ break;
+ pc = sf.callers_pc & 0xffffffff;
+ ufp = ((unsigned long) sf.fp) & 0xffffffff;
+ } else {
+ struct sparc_stackf32 *usf, sf;
+ usf = (struct sparc_stackf32 *) ufp;
+ if (__copy_from_user_inatomic(&sf, usf, sizeof(sf)))
+ break;
+ pc = sf.callers_pc;
+ ufp = (unsigned long)sf.fp;
+ }
perf_callchain_store(entry, pc);
} while (entry->nr < PERF_MAX_STACK_DEPTH);
}
diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c
index d778248ef3f8..c6e0c2910043 100644
--- a/arch/sparc/kernel/process_64.c
+++ b/arch/sparc/kernel/process_64.c
@@ -452,13 +452,16 @@ void flush_thread(void)
/* It's a bit more tricky when 64-bit tasks are involved... */
static unsigned long clone_stackframe(unsigned long csp, unsigned long psp)
{
+ bool stack_64bit = test_thread_64bit_stack(psp);
unsigned long fp, distance, rval;
- if (!(test_thread_flag(TIF_32BIT))) {
+ if (stack_64bit) {
csp += STACK_BIAS;
psp += STACK_BIAS;
__get_user(fp, &(((struct reg_window __user *)psp)->ins[6]));
fp += STACK_BIAS;
+ if (test_thread_flag(TIF_32BIT))
+ fp &= 0xffffffff;
} else
__get_user(fp, &(((struct reg_window32 __user *)psp)->ins[6]));
@@ -472,7 +475,7 @@ static unsigned long clone_stackframe(unsigned long csp, unsigned long psp)
rval = (csp - distance);
if (copy_in_user((void __user *) rval, (void __user *) psp, distance))
rval = 0;
- else if (test_thread_flag(TIF_32BIT)) {
+ else if (!stack_64bit) {
if (put_user(((u32)csp),
&(((struct reg_window32 __user *)rval)->ins[6])))
rval = 0;
@@ -507,18 +510,18 @@ void synchronize_user_stack(void)
flush_user_windows();
if ((window = get_thread_wsaved()) != 0) {
- int winsize = sizeof(struct reg_window);
- int bias = 0;
-
- if (test_thread_flag(TIF_32BIT))
- winsize = sizeof(struct reg_window32);
- else
- bias = STACK_BIAS;
-
window -= 1;
do {
- unsigned long sp = (t->rwbuf_stkptrs[window] + bias);
struct reg_window *rwin = &t->reg_window[window];
+ int winsize = sizeof(struct reg_window);
+ unsigned long sp;
+
+ sp = t->rwbuf_stkptrs[window];
+
+ if (test_thread_64bit_stack(sp))
+ sp += STACK_BIAS;
+ else
+ winsize = sizeof(struct reg_window32);
if (!copy_to_user((char __user *)sp, rwin, winsize)) {
shift_window_buffer(window, get_thread_wsaved() - 1, t);
@@ -544,13 +547,6 @@ void fault_in_user_windows(void)
{
struct thread_info *t = current_thread_info();
unsigned long window;
- int winsize = sizeof(struct reg_window);
- int bias = 0;
-
- if (test_thread_flag(TIF_32BIT))
- winsize = sizeof(struct reg_window32);
- else
- bias = STACK_BIAS;
flush_user_windows();
window = get_thread_wsaved();
@@ -558,8 +554,16 @@ void fault_in_user_windows(void)
if (likely(window != 0)) {
window -= 1;
do {
- unsigned long sp = (t->rwbuf_stkptrs[window] + bias);
struct reg_window *rwin = &t->reg_window[window];
+ int winsize = sizeof(struct reg_window);
+ unsigned long sp;
+
+ sp = t->rwbuf_stkptrs[window];
+
+ if (test_thread_64bit_stack(sp))
+ sp += STACK_BIAS;
+ else
+ winsize = sizeof(struct reg_window32);
if (unlikely(sp & 0x7UL))
stack_unaligned(sp);
diff --git a/arch/sparc/kernel/ptrace_64.c b/arch/sparc/kernel/ptrace_64.c
index 484dabac7045..7ff45e4ba681 100644
--- a/arch/sparc/kernel/ptrace_64.c
+++ b/arch/sparc/kernel/ptrace_64.c
@@ -151,7 +151,7 @@ static int regwindow64_get(struct task_struct *target,
{
unsigned long rw_addr = regs->u_regs[UREG_I6];
- if (test_tsk_thread_flag(current, TIF_32BIT)) {
+ if (!test_thread_64bit_stack(rw_addr)) {
struct reg_window32 win32;
int i;
@@ -176,7 +176,7 @@ static int regwindow64_set(struct task_struct *target,
{
unsigned long rw_addr = regs->u_regs[UREG_I6];
- if (test_tsk_thread_flag(current, TIF_32BIT)) {
+ if (!test_thread_64bit_stack(rw_addr)) {
struct reg_window32 win32;
int i;
diff --git a/arch/sparc/kernel/setup_64.c b/arch/sparc/kernel/setup_64.c
index 0800e71d8a88..0eaf0059aaef 100644
--- a/arch/sparc/kernel/setup_64.c
+++ b/arch/sparc/kernel/setup_64.c
@@ -316,6 +316,25 @@ static void __init popc_patch(void)
}
}
+static void __init pause_patch(void)
+{
+ struct pause_patch_entry *p;
+
+ p = &__pause_3insn_patch;
+ while (p < &__pause_3insn_patch_end) {
+ unsigned long i, addr = p->addr;
+
+ for (i = 0; i < 3; i++) {
+ *(unsigned int *) (addr + (i * 4)) = p->insns[i];
+ wmb();
+ __asm__ __volatile__("flush %0"
+ : : "r" (addr + (i * 4)));
+ }
+
+ p++;
+ }
+}
+
#ifdef CONFIG_SMP
void __init boot_cpu_id_too_large(int cpu)
{
@@ -528,6 +547,8 @@ static void __init init_sparc64_elf_hwcap(void)
if (sparc64_elf_hwcap & AV_SPARC_POPC)
popc_patch();
+ if (sparc64_elf_hwcap & AV_SPARC_PAUSE)
+ pause_patch();
}
void __init setup_arch(char **cmdline_p)
diff --git a/arch/sparc/kernel/signal_64.c b/arch/sparc/kernel/signal_64.c
index 867de2f8189c..689e1ba62809 100644
--- a/arch/sparc/kernel/signal_64.c
+++ b/arch/sparc/kernel/signal_64.c
@@ -295,9 +295,7 @@ void do_rt_sigreturn(struct pt_regs *regs)
err |= restore_fpu_state(regs, fpu_save);
err |= __copy_from_user(&set, &sf->mask, sizeof(sigset_t));
- err |= do_sigaltstack(&sf->stack, NULL, (unsigned long)sf);
-
- if (err)
+ if (err || do_sigaltstack(&sf->stack, NULL, (unsigned long)sf) == -EFAULT)
goto segv;
err |= __get_user(rwin_save, &sf->rwin_save);
diff --git a/arch/sparc/kernel/sys32.S b/arch/sparc/kernel/sys32.S
index 44025f4ba41f..8475a474273a 100644
--- a/arch/sparc/kernel/sys32.S
+++ b/arch/sparc/kernel/sys32.S
@@ -47,7 +47,7 @@ STUB: sra REG1, 0, REG1; \
sra REG4, 0, REG4
SIGN1(sys32_exit, sparc_exit, %o0)
-SIGN1(sys32_exit_group, sys_exit_group, %o0)
+SIGN1(sys32_exit_group, sparc_exit_group, %o0)
SIGN1(sys32_wait4, compat_sys_wait4, %o2)
SIGN1(sys32_creat, sys_creat, %o1)
SIGN1(sys32_mknod, sys_mknod, %o1)
diff --git a/arch/sparc/kernel/sys_sparc_32.c b/arch/sparc/kernel/sys_sparc_32.c
index 0c9b31b22e07..57277c830151 100644
--- a/arch/sparc/kernel/sys_sparc_32.c
+++ b/arch/sparc/kernel/sys_sparc_32.c
@@ -34,11 +34,9 @@ asmlinkage unsigned long sys_getpagesize(void)
return PAGE_SIZE; /* Possibly older binaries want 8192 on sun4's? */
}
-#define COLOUR_ALIGN(addr) (((addr)+SHMLBA-1)&~(SHMLBA-1))
-
unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsigned long len, unsigned long pgoff, unsigned long flags)
{
- struct vm_area_struct * vmm;
+ struct vm_unmapped_area_info info;
if (flags & MAP_FIXED) {
/* We do not accept a shared mapping if it would violate
@@ -56,21 +54,14 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
if (!addr)
addr = TASK_UNMAPPED_BASE;
- if (flags & MAP_SHARED)
- addr = COLOUR_ALIGN(addr);
- else
- addr = PAGE_ALIGN(addr);
-
- for (vmm = find_vma(current->mm, addr); ; vmm = vmm->vm_next) {
- /* At this point: (!vmm || addr < vmm->vm_end). */
- if (TASK_SIZE - PAGE_SIZE - len < addr)
- return -ENOMEM;
- if (!vmm || addr + len <= vmm->vm_start)
- return addr;
- addr = vmm->vm_end;
- if (flags & MAP_SHARED)
- addr = COLOUR_ALIGN(addr);
- }
+ info.flags = 0;
+ info.length = len;
+ info.low_limit = addr;
+ info.high_limit = TASK_SIZE;
+ info.align_mask = (flags & MAP_SHARED) ?
+ (PAGE_MASK & (SHMLBA - 1)) : 0;
+ info.align_offset = pgoff << PAGE_SHIFT;
+ return vm_unmapped_area(&info);
}
/*
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index 11c6c9603e71..97309c0ec533 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -75,7 +75,7 @@ static inline int invalid_64bit_range(unsigned long addr, unsigned long len)
* the spitfire/niagara VA-hole.
*/
-static inline unsigned long COLOUR_ALIGN(unsigned long addr,
+static inline unsigned long COLOR_ALIGN(unsigned long addr,
unsigned long pgoff)
{
unsigned long base = (addr+SHMLBA-1)&~(SHMLBA-1);
@@ -84,24 +84,13 @@ static inline unsigned long COLOUR_ALIGN(unsigned long addr,
return base + off;
}
-static inline unsigned long COLOUR_ALIGN_DOWN(unsigned long addr,
- unsigned long pgoff)
-{
- unsigned long base = addr & ~(SHMLBA-1);
- unsigned long off = (pgoff<<PAGE_SHIFT) & (SHMLBA-1);
-
- if (base + off <= addr)
- return base + off;
- return base - off;
-}
-
unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsigned long len, unsigned long pgoff, unsigned long flags)
{
struct mm_struct *mm = current->mm;
struct vm_area_struct * vma;
unsigned long task_size = TASK_SIZE;
- unsigned long start_addr;
int do_color_align;
+ struct vm_unmapped_area_info info;
if (flags & MAP_FIXED) {
/* We do not accept a shared mapping if it would violate
@@ -124,7 +113,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
if (addr) {
if (do_color_align)
- addr = COLOUR_ALIGN(addr, pgoff);
+ addr = COLOR_ALIGN(addr, pgoff);
else
addr = PAGE_ALIGN(addr);
@@ -134,50 +123,22 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
return addr;
}
- if (len > mm->cached_hole_size) {
- start_addr = addr = mm->free_area_cache;
- } else {
- start_addr = addr = TASK_UNMAPPED_BASE;
- mm->cached_hole_size = 0;
- }
-
- task_size -= len;
-
-full_search:
- if (do_color_align)
- addr = COLOUR_ALIGN(addr, pgoff);
- else
- addr = PAGE_ALIGN(addr);
+ info.flags = 0;
+ info.length = len;
+ info.low_limit = TASK_UNMAPPED_BASE;
+ info.high_limit = min(task_size, VA_EXCLUDE_START);
+ info.align_mask = do_color_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
+ info.align_offset = pgoff << PAGE_SHIFT;
+ addr = vm_unmapped_area(&info);
- for (vma = find_vma(mm, addr); ; vma = vma->vm_next) {
- /* At this point: (!vma || addr < vma->vm_end). */
- if (addr < VA_EXCLUDE_START &&
- (addr + len) >= VA_EXCLUDE_START) {
- addr = VA_EXCLUDE_END;
- vma = find_vma(mm, VA_EXCLUDE_END);
- }
- if (unlikely(task_size < addr)) {
- if (start_addr != TASK_UNMAPPED_BASE) {
- start_addr = addr = TASK_UNMAPPED_BASE;
- mm->cached_hole_size = 0;
- goto full_search;
- }
- return -ENOMEM;
- }
- if (likely(!vma || addr + len <= vma->vm_start)) {
- /*
- * Remember the place where we stopped the search:
- */
- mm->free_area_cache = addr + len;
- return addr;
- }
- if (addr + mm->cached_hole_size < vma->vm_start)
- mm->cached_hole_size = vma->vm_start - addr;
-
- addr = vma->vm_end;
- if (do_color_align)
- addr = COLOUR_ALIGN(addr, pgoff);
+ if ((addr & ~PAGE_MASK) && task_size > VA_EXCLUDE_END) {
+ VM_BUG_ON(addr != -ENOMEM);
+ info.low_limit = VA_EXCLUDE_END;
+ info.high_limit = task_size;
+ addr = vm_unmapped_area(&info);
}
+
+ return addr;
}
unsigned long
@@ -190,6 +151,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
unsigned long task_size = STACK_TOP32;
unsigned long addr = addr0;
int do_color_align;
+ struct vm_unmapped_area_info info;
/* This should only ever run for 32-bit processes. */
BUG_ON(!test_thread_flag(TIF_32BIT));
@@ -214,7 +176,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
/* requesting a specific address */
if (addr) {
if (do_color_align)
- addr = COLOUR_ALIGN(addr, pgoff);
+ addr = COLOR_ALIGN(addr, pgoff);
else
addr = PAGE_ALIGN(addr);
@@ -224,73 +186,27 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
return addr;
}
- /* check if free_area_cache is useful for us */
- if (len <= mm->cached_hole_size) {
- mm->cached_hole_size = 0;
- mm->free_area_cache = mm->mmap_base;
- }
+ info.flags = VM_UNMAPPED_AREA_TOPDOWN;
+ info.length = len;
+ info.low_limit = PAGE_SIZE;
+ info.high_limit = mm->mmap_base;
+ info.align_mask = do_color_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
+ info.align_offset = pgoff << PAGE_SHIFT;
+ addr = vm_unmapped_area(&info);
- /* either no address requested or can't fit in requested address hole */
- addr = mm->free_area_cache;
- if (do_color_align) {
- unsigned long base = COLOUR_ALIGN_DOWN(addr-len, pgoff);
-
- addr = base + len;
- }
-
- /* make sure it can fit in the remaining address space */
- if (likely(addr > len)) {
- vma = find_vma(mm, addr-len);
- if (!vma || addr <= vma->vm_start) {
- /* remember the address as a hint for next time */
- return (mm->free_area_cache = addr-len);
- }
- }
-
- if (unlikely(mm->mmap_base < len))
- goto bottomup;
-
- addr = mm->mmap_base-len;
- if (do_color_align)
- addr = COLOUR_ALIGN_DOWN(addr, pgoff);
-
- do {
- /*
- * Lookup failure means no vma is above this address,
- * else if new region fits below vma->vm_start,
- * return with success:
- */
- vma = find_vma(mm, addr);
- if (likely(!vma || addr+len <= vma->vm_start)) {
- /* remember the address as a hint for next time */
- return (mm->free_area_cache = addr);
- }
-
- /* remember the largest hole we saw so far */
- if (addr + mm->cached_hole_size < vma->vm_start)
- mm->cached_hole_size = vma->vm_start - addr;
-
- /* try just below the current vma->vm_start */
- addr = vma->vm_start-len;
- if (do_color_align)
- addr = COLOUR_ALIGN_DOWN(addr, pgoff);
- } while (likely(len < vma->vm_start));
-
-bottomup:
/*
* A failed mmap() very likely causes application failure,
* so fall back to the bottom-up function here. This scenario
* can happen with large stack limits and large mmap()
* allocations.
*/
- mm->cached_hole_size = ~0UL;
- mm->free_area_cache = TASK_UNMAPPED_BASE;
- addr = arch_get_unmapped_area(filp, addr0, len, pgoff, flags);
- /*
- * Restore the topdown base:
- */
- mm->free_area_cache = mm->mmap_base;
- mm->cached_hole_size = ~0UL;
+ if (addr & ~PAGE_MASK) {
+ VM_BUG_ON(addr != -ENOMEM);
+ info.flags = 0;
+ info.low_limit = TASK_UNMAPPED_BASE;
+ info.high_limit = STACK_TOP32;
+ addr = vm_unmapped_area(&info);
+ }
return addr;
}
@@ -751,3 +667,8 @@ int kernel_execve(const char *filename,
: "cc");
return __res;
}
+
+asmlinkage long sys_kern_features(void)
+{
+ return KERN_FEATURE_MIXED_MODE_STACK;
+}
diff --git a/arch/sparc/kernel/syscalls.S b/arch/sparc/kernel/syscalls.S
index 7f5f65d0b3fd..bf2347794e33 100644
--- a/arch/sparc/kernel/syscalls.S
+++ b/arch/sparc/kernel/syscalls.S
@@ -118,10 +118,20 @@ ret_from_syscall:
ba,pt %xcc, ret_sys_call
ldx [%sp + PTREGS_OFF + PT_V9_I0], %o0
+ .globl sparc_exit_group
+ .type sparc_exit_group,#function
+sparc_exit_group:
+ sethi %hi(sys_exit_group), %g7
+ ba,pt %xcc, 1f
+ or %g7, %lo(sys_exit_group), %g7
+ .size sparc_exit_group,.-sparc_exit_group
+
.globl sparc_exit
.type sparc_exit,#function
sparc_exit:
- rdpr %pstate, %g2
+ sethi %hi(sys_exit), %g7
+ or %g7, %lo(sys_exit), %g7
+1: rdpr %pstate, %g2
wrpr %g2, PSTATE_IE, %pstate
rdpr %otherwin, %g1
rdpr %cansave, %g3
@@ -129,7 +139,7 @@ sparc_exit:
wrpr %g3, 0x0, %cansave
wrpr %g0, 0x0, %otherwin
wrpr %g2, 0x0, %pstate
- ba,pt %xcc, sys_exit
+ jmpl %g7, %g0
stb %g0, [%g6 + TI_WSAVED]
.size sparc_exit,.-sparc_exit
diff --git a/arch/sparc/kernel/systbls_32.S b/arch/sparc/kernel/systbls_32.S
index 63402f9e9f51..5147f574f125 100644
--- a/arch/sparc/kernel/systbls_32.S
+++ b/arch/sparc/kernel/systbls_32.S
@@ -85,3 +85,4 @@ sys_call_table:
/*325*/ .long sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_event_open, sys_recvmmsg, sys_fanotify_init
/*330*/ .long sys_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, sys_open_by_handle_at, sys_clock_adjtime
/*335*/ .long sys_syncfs, sys_sendmmsg, sys_setns, sys_process_vm_readv, sys_process_vm_writev
+/*340*/ .long sys_ni_syscall, sys_kcmp
diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S
index 3a58e0d66f51..017b74a63dcb 100644
--- a/arch/sparc/kernel/systbls_64.S
+++ b/arch/sparc/kernel/systbls_64.S
@@ -86,6 +86,7 @@ sys_call_table32:
.word compat_sys_pwritev, compat_sys_rt_tgsigqueueinfo, sys_perf_event_open, compat_sys_recvmmsg, sys_fanotify_init
/*330*/ .word sys32_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, compat_sys_open_by_handle_at, compat_sys_clock_adjtime
.word sys_syncfs, compat_sys_sendmmsg, sys_setns, compat_sys_process_vm_readv, compat_sys_process_vm_writev
+/*340*/ .word sys_kern_features, sys_kcmp
#endif /* CONFIG_COMPAT */
@@ -132,7 +133,7 @@ sys_call_table:
/*170*/ .word sys_lsetxattr, sys_fsetxattr, sys_getxattr, sys_lgetxattr, sys_getdents
.word sys_setsid, sys_fchdir, sys_fgetxattr, sys_listxattr, sys_llistxattr
/*180*/ .word sys_flistxattr, sys_removexattr, sys_lremovexattr, sys_nis_syscall, sys_ni_syscall
- .word sys_setpgid, sys_fremovexattr, sys_tkill, sys_exit_group, sys_newuname
+ .word sys_setpgid, sys_fremovexattr, sys_tkill, sparc_exit_group, sys_newuname
/*190*/ .word sys_init_module, sys_sparc64_personality, sys_remap_file_pages, sys_epoll_create, sys_epoll_ctl
.word sys_epoll_wait, sys_ioprio_set, sys_getppid, sys_nis_syscall, sys_sgetmask
/*200*/ .word sys_ssetmask, sys_nis_syscall, sys_newlstat, sys_uselib, sys_nis_syscall
@@ -163,3 +164,4 @@ sys_call_table:
.word sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_event_open, sys_recvmmsg, sys_fanotify_init
/*330*/ .word sys_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, sys_open_by_handle_at, sys_clock_adjtime
.word sys_syncfs, sys_sendmmsg, sys_setns, sys_process_vm_readv, sys_process_vm_writev
+/*340*/ .word sys_kern_features, sys_kcmp
diff --git a/arch/sparc/kernel/unaligned_64.c b/arch/sparc/kernel/unaligned_64.c
index f81d038f7340..8201c25e7669 100644
--- a/arch/sparc/kernel/unaligned_64.c
+++ b/arch/sparc/kernel/unaligned_64.c
@@ -113,21 +113,24 @@ static inline long sign_extend_imm13(long imm)
static unsigned long fetch_reg(unsigned int reg, struct pt_regs *regs)
{
- unsigned long value;
+ unsigned long value, fp;
if (reg < 16)
return (!reg ? 0 : regs->u_regs[reg]);
+
+ fp = regs->u_regs[UREG_FP];
+
if (regs->tstate & TSTATE_PRIV) {
struct reg_window *win;
- win = (struct reg_window *)(regs->u_regs[UREG_FP] + STACK_BIAS);
+ win = (struct reg_window *)(fp + STACK_BIAS);
value = win->locals[reg - 16];
- } else if (test_thread_flag(TIF_32BIT)) {
+ } else if (!test_thread_64bit_stack(fp)) {
struct reg_window32 __user *win32;
- win32 = (struct reg_window32 __user *)((unsigned long)((u32)regs->u_regs[UREG_FP]));
+ win32 = (struct reg_window32 __user *)((unsigned long)((u32)fp));
get_user(value, &win32->locals[reg - 16]);
} else {
struct reg_window __user *win;
- win = (struct reg_window __user *)(regs->u_regs[UREG_FP] + STACK_BIAS);
+ win = (struct reg_window __user *)(fp + STACK_BIAS);
get_user(value, &win->locals[reg - 16]);
}
return value;
@@ -135,19 +138,24 @@ static unsigned long fetch_reg(unsigned int reg, struct pt_regs *regs)
static unsigned long *fetch_reg_addr(unsigned int reg, struct pt_regs *regs)
{
+ unsigned long fp;
+
if (reg < 16)
return &regs->u_regs[reg];
+
+ fp = regs->u_regs[UREG_FP];
+
if (regs->tstate & TSTATE_PRIV) {
struct reg_window *win;
- win = (struct reg_window *)(regs->u_regs[UREG_FP] + STACK_BIAS);
+ win = (struct reg_window *)(fp + STACK_BIAS);
return &win->locals[reg - 16];
- } else if (test_thread_flag(TIF_32BIT)) {
+ } else if (!test_thread_64bit_stack(fp)) {
struct reg_window32 *win32;
- win32 = (struct reg_window32 *)((unsigned long)((u32)regs->u_regs[UREG_FP]));
+ win32 = (struct reg_window32 *)((unsigned long)((u32)fp));
return (unsigned long *)&win32->locals[reg - 16];
} else {
struct reg_window *win;
- win = (struct reg_window *)(regs->u_regs[UREG_FP] + STACK_BIAS);
+ win = (struct reg_window *)(fp + STACK_BIAS);
return &win->locals[reg - 16];
}
}
@@ -392,13 +400,15 @@ int handle_popc(u32 insn, struct pt_regs *regs)
if (rd)
regs->u_regs[rd] = ret;
} else {
- if (test_thread_flag(TIF_32BIT)) {
+ unsigned long fp = regs->u_regs[UREG_FP];
+
+ if (!test_thread_64bit_stack(fp)) {
struct reg_window32 __user *win32;
- win32 = (struct reg_window32 __user *)((unsigned long)((u32)regs->u_regs[UREG_FP]));
+ win32 = (struct reg_window32 __user *)((unsigned long)((u32)fp));
put_user(ret, &win32->locals[rd - 16]);
} else {
struct reg_window __user *win;
- win = (struct reg_window __user *)(regs->u_regs[UREG_FP] + STACK_BIAS);
+ win = (struct reg_window __user *)(fp + STACK_BIAS);
put_user(ret, &win->locals[rd - 16]);
}
}
@@ -554,7 +564,7 @@ void handle_ld_nf(u32 insn, struct pt_regs *regs)
reg[0] = 0;
if ((insn & 0x780000) == 0x180000)
reg[1] = 0;
- } else if (test_thread_flag(TIF_32BIT)) {
+ } else if (!test_thread_64bit_stack(regs->u_regs[UREG_FP])) {
put_user(0, (int __user *) reg);
if ((insn & 0x780000) == 0x180000)
put_user(0, ((int __user *) reg) + 1);
diff --git a/arch/sparc/kernel/visemul.c b/arch/sparc/kernel/visemul.c
index 08e074b7eb6a..c096c624ac4d 100644
--- a/arch/sparc/kernel/visemul.c
+++ b/arch/sparc/kernel/visemul.c
@@ -149,21 +149,24 @@ static inline void maybe_flush_windows(unsigned int rs1, unsigned int rs2,
static unsigned long fetch_reg(unsigned int reg, struct pt_regs *regs)
{
- unsigned long value;
+ unsigned long value, fp;
if (reg < 16)
return (!reg ? 0 : regs->u_regs[reg]);
+
+ fp = regs->u_regs[UREG_FP];
+
if (regs->tstate & TSTATE_PRIV) {
struct reg_window *win;
- win = (struct reg_window *)(regs->u_regs[UREG_FP] + STACK_BIAS);
+ win = (struct reg_window *)(fp + STACK_BIAS);
value = win->locals[reg - 16];
- } else if (test_thread_flag(TIF_32BIT)) {
+ } else if (!test_thread_64bit_stack(fp)) {
struct reg_window32 __user *win32;
- win32 = (struct reg_window32 __user *)((unsigned long)((u32)regs->u_regs[UREG_FP]));
+ win32 = (struct reg_window32 __user *)((unsigned long)((u32)fp));
get_user(value, &win32->locals[reg - 16]);
} else {
struct reg_window __user *win;
- win = (struct reg_window __user *)(regs->u_regs[UREG_FP] + STACK_BIAS);
+ win = (struct reg_window __user *)(fp + STACK_BIAS);
get_user(value, &win->locals[reg - 16]);
}
return value;
@@ -172,16 +175,18 @@ static unsigned long fetch_reg(unsigned int reg, struct pt_regs *regs)
static inline unsigned long __user *__fetch_reg_addr_user(unsigned int reg,
struct pt_regs *regs)
{
+ unsigned long fp = regs->u_regs[UREG_FP];
+
BUG_ON(reg < 16);
BUG_ON(regs->tstate & TSTATE_PRIV);
- if (test_thread_flag(TIF_32BIT)) {
+ if (!test_thread_64bit_stack(fp)) {
struct reg_window32 __user *win32;
- win32 = (struct reg_window32 __user *)((unsigned long)((u32)regs->u_regs[UREG_FP]));
+ win32 = (struct reg_window32 __user *)((unsigned long)((u32)fp));
return (unsigned long __user *)&win32->locals[reg - 16];
} else {
struct reg_window __user *win;
- win = (struct reg_window __user *)(regs->u_regs[UREG_FP] + STACK_BIAS);
+ win = (struct reg_window __user *)(fp + STACK_BIAS);
return &win->locals[reg - 16];
}
}
@@ -204,7 +209,7 @@ static void store_reg(struct pt_regs *regs, unsigned long val, unsigned long rd)
} else {
unsigned long __user *rd_user = __fetch_reg_addr_user(rd, regs);
- if (test_thread_flag(TIF_32BIT))
+ if (!test_thread_64bit_stack(regs->u_regs[UREG_FP]))
__put_user((u32)val, (u32 __user *)rd_user);
else
__put_user(val, rd_user);
diff --git a/arch/sparc/kernel/vmlinux.lds.S b/arch/sparc/kernel/vmlinux.lds.S
index 89c2c29f154b..0bacceb19150 100644
--- a/arch/sparc/kernel/vmlinux.lds.S
+++ b/arch/sparc/kernel/vmlinux.lds.S
@@ -132,6 +132,11 @@ SECTIONS
*(.popc_6insn_patch)
__popc_6insn_patch_end = .;
}
+ .pause_3insn_patch : {
+ __pause_3insn_patch = .;
+ *(.pause_3insn_patch)
+ __pause_3insn_patch_end = .;
+ }
PERCPU_SECTION(SMP_CACHE_BYTES)
. = ALIGN(PAGE_SIZE);
diff --git a/arch/sparc/kernel/winfixup.S b/arch/sparc/kernel/winfixup.S
index a6b0863c27df..1e67ce958369 100644
--- a/arch/sparc/kernel/winfixup.S
+++ b/arch/sparc/kernel/winfixup.S
@@ -43,6 +43,8 @@ spill_fixup_mna:
spill_fixup_dax:
TRAP_LOAD_THREAD_REG(%g6, %g1)
ldx [%g6 + TI_FLAGS], %g1
+ andcc %sp, 0x1, %g0
+ movne %icc, 0, %g1
andcc %g1, _TIF_32BIT, %g0
ldub [%g6 + TI_WSAVED], %g1
sll %g1, 3, %g3
generated by cgit v1.2.3 (git 2.51.0) at 2025-09-23 17:35:14 +0000