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-rw-r--r--arch/parisc/kernel/asm-offsets.c3
-rw-r--r--arch/parisc/kernel/irq.c8
-rw-r--r--arch/parisc/kernel/perf.c2
-rw-r--r--arch/parisc/kernel/signal.c1
-rw-r--r--arch/parisc/kernel/smp.c9
-rw-r--r--arch/parisc/kernel/sys_parisc.c30
-rw-r--r--arch/parisc/kernel/sys_parisc32.c71
-rw-r--r--arch/parisc/kernel/syscall_table.S2
-rw-r--r--arch/parisc/kernel/unwind.c52
-rw-r--r--arch/parisc/kernel/vmlinux.lds.S6
10 files changed, 56 insertions, 128 deletions
diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index fcd3c707bf12..ec787b411e9a 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -244,9 +244,6 @@ int main(void)
DEFINE(THREAD_SZ, sizeof(struct thread_info));
DEFINE(THREAD_SZ_ALGN, align(sizeof(struct thread_info), 64));
BLANK();
- DEFINE(IRQSTAT_SIRQ_PEND, offsetof(irq_cpustat_t, __softirq_pending));
- DEFINE(IRQSTAT_SZ, sizeof(irq_cpustat_t));
- BLANK();
DEFINE(ICACHE_BASE, offsetof(struct pdc_cache_info, ic_base));
DEFINE(ICACHE_STRIDE, offsetof(struct pdc_cache_info, ic_stride));
DEFINE(ICACHE_COUNT, offsetof(struct pdc_cache_info, ic_count));
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 2e7610cb33d5..efbcee5d2220 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -145,7 +145,7 @@ static int cpu_set_affinity_irq(unsigned int irq, const struct cpumask *dest)
#endif
static struct irq_chip cpu_interrupt_type = {
- .typename = "CPU",
+ .name = "CPU",
.startup = cpu_startup_irq,
.shutdown = cpu_disable_irq,
.enable = cpu_enable_irq,
@@ -180,7 +180,7 @@ int show_interrupts(struct seq_file *p, void *v)
if (i < NR_IRQS) {
struct irqaction *action;
- spin_lock_irqsave(&irq_desc[i].lock, flags);
+ raw_spin_lock_irqsave(&irq_desc[i].lock, flags);
action = irq_desc[i].action;
if (!action)
goto skip;
@@ -192,7 +192,7 @@ int show_interrupts(struct seq_file *p, void *v)
seq_printf(p, "%10u ", kstat_irqs(i));
#endif
- seq_printf(p, " %14s", irq_desc[i].chip->typename);
+ seq_printf(p, " %14s", irq_desc[i].chip->name);
#ifndef PARISC_IRQ_CR16_COUNTS
seq_printf(p, " %s", action->name);
@@ -224,7 +224,7 @@ int show_interrupts(struct seq_file *p, void *v)
seq_putc(p, '\n');
skip:
- spin_unlock_irqrestore(&irq_desc[i].lock, flags);
+ raw_spin_unlock_irqrestore(&irq_desc[i].lock, flags);
}
return 0;
diff --git a/arch/parisc/kernel/perf.c b/arch/parisc/kernel/perf.c
index 75099efb3bf3..f9f6783e4bdd 100644
--- a/arch/parisc/kernel/perf.c
+++ b/arch/parisc/kernel/perf.c
@@ -24,7 +24,7 @@
*
* This driver programs the PCX-U/PCX-W performance counters
* on the PA-RISC 2.0 chips. The driver keeps all images now
- * internally to the kernel to hopefully eliminate the possiblity
+ * internally to the kernel to hopefully eliminate the possibility
* of a bad image halting the CPU. Also, there are different
* images for the PCX-W and later chips vs the PCX-U chips.
*
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index e8467e4aa8d1..fb37ac52e46c 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -26,7 +26,6 @@
#include <linux/stddef.h>
#include <linux/compat.h>
#include <linux/elf.h>
-#include <linux/tracehook.h>
#include <asm/ucontext.h>
#include <asm/rt_sigframe.h>
#include <asm/uaccess.h>
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 1fd0f0cec037..3f2fce8ce6b6 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -60,8 +60,6 @@ static int smp_debug_lvl = 0;
#define smp_debug(lvl, ...) do { } while(0)
#endif /* DEBUG_SMP */
-DEFINE_SPINLOCK(smp_lock);
-
volatile struct task_struct *smp_init_current_idle_task;
/* track which CPU is booting */
@@ -69,7 +67,7 @@ static volatile int cpu_now_booting __cpuinitdata;
static int parisc_max_cpus __cpuinitdata = 1;
-DEFINE_PER_CPU(spinlock_t, ipi_lock) = SPIN_LOCK_UNLOCKED;
+static DEFINE_PER_CPU(spinlock_t, ipi_lock);
enum ipi_message_type {
IPI_NOP=0,
@@ -438,6 +436,11 @@ void __init smp_prepare_boot_cpu(void)
*/
void __init smp_prepare_cpus(unsigned int max_cpus)
{
+ int cpu;
+
+ for_each_possible_cpu(cpu)
+ spin_lock_init(&per_cpu(ipi_lock, cpu));
+
init_cpu_present(cpumask_of(0));
parisc_max_cpus = max_cpus;
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index 71b31957c8f1..9147391afb03 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -110,37 +110,14 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
return addr;
}
-static unsigned long do_mmap2(unsigned long addr, unsigned long len,
- unsigned long prot, unsigned long flags, unsigned long fd,
- unsigned long pgoff)
-{
- struct file * file = NULL;
- unsigned long error = -EBADF;
- if (!(flags & MAP_ANONYMOUS)) {
- file = fget(fd);
- if (!file)
- goto out;
- }
-
- flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
-
- down_write(&current->mm->mmap_sem);
- error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
- up_write(&current->mm->mmap_sem);
-
- if (file != NULL)
- fput(file);
-out:
- return error;
-}
-
asmlinkage unsigned long sys_mmap2(unsigned long addr, unsigned long len,
unsigned long prot, unsigned long flags, unsigned long fd,
unsigned long pgoff)
{
/* Make sure the shift for mmap2 is constant (12), no matter what PAGE_SIZE
we have. */
- return do_mmap2(addr, len, prot, flags, fd, pgoff >> (PAGE_SHIFT - 12));
+ return sys_mmap_pgoff(addr, len, prot, flags, fd,
+ pgoff >> (PAGE_SHIFT - 12));
}
asmlinkage unsigned long sys_mmap(unsigned long addr, unsigned long len,
@@ -148,7 +125,8 @@ asmlinkage unsigned long sys_mmap(unsigned long addr, unsigned long len,
unsigned long offset)
{
if (!(offset & ~PAGE_MASK)) {
- return do_mmap2(addr, len, prot, flags, fd, offset >> PAGE_SHIFT);
+ return sys_mmap_pgoff(addr, len, prot, flags, fd,
+ offset >> PAGE_SHIFT);
} else {
return -EINVAL;
}
diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
index 4a8ca634dcc8..9779ece2b070 100644
--- a/arch/parisc/kernel/sys_parisc32.c
+++ b/arch/parisc/kernel/sys_parisc32.c
@@ -84,77 +84,6 @@ asmlinkage long sys32_unimplemented(int r26, int r25, int r24, int r23,
return -ENOSYS;
}
-#ifdef CONFIG_SYSCTL
-
-struct __sysctl_args32 {
- u32 name;
- int nlen;
- u32 oldval;
- u32 oldlenp;
- u32 newval;
- u32 newlen;
- u32 __unused[4];
-};
-
-asmlinkage long sys32_sysctl(struct __sysctl_args32 __user *args)
-{
-#ifndef CONFIG_SYSCTL_SYSCALL
- return -ENOSYS;
-#else
- struct __sysctl_args32 tmp;
- int error;
- unsigned int oldlen32;
- size_t oldlen, __user *oldlenp = NULL;
- unsigned long addr = (((long __force)&args->__unused[0]) + 7) & ~7;
-
- DBG(("sysctl32(%p)\n", args));
-
- if (copy_from_user(&tmp, args, sizeof(tmp)))
- return -EFAULT;
-
- if (tmp.oldval && tmp.oldlenp) {
- /* Duh, this is ugly and might not work if sysctl_args
- is in read-only memory, but do_sysctl does indirectly
- a lot of uaccess in both directions and we'd have to
- basically copy the whole sysctl.c here, and
- glibc's __sysctl uses rw memory for the structure
- anyway. */
- /* a possibly better hack than this, which will avoid the
- * problem if the struct is read only, is to push the
- * 'oldlen' value out to the user's stack instead. -PB
- */
- if (get_user(oldlen32, (u32 *)(u64)tmp.oldlenp))
- return -EFAULT;
- oldlen = oldlen32;
- if (put_user(oldlen, (size_t *)addr))
- return -EFAULT;
- oldlenp = (size_t *)addr;
- }
-
- lock_kernel();
- error = do_sysctl((int __user *)(u64)tmp.name, tmp.nlen,
- (void __user *)(u64)tmp.oldval, oldlenp,
- (void __user *)(u64)tmp.newval, tmp.newlen);
- unlock_kernel();
- if (oldlenp) {
- if (!error) {
- if (get_user(oldlen, (size_t *)addr)) {
- error = -EFAULT;
- } else {
- oldlen32 = oldlen;
- if (put_user(oldlen32, (u32 *)(u64)tmp.oldlenp))
- error = -EFAULT;
- }
- }
- if (copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused)))
- error = -EFAULT;
- }
- return error;
-#endif
-}
-
-#endif /* CONFIG_SYSCTL */
-
asmlinkage long sys32_sched_rr_get_interval(pid_t pid,
struct compat_timespec __user *interval)
{
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 843f423dec67..01c4fcf8f481 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -234,7 +234,7 @@
ENTRY_SAME(getsid)
ENTRY_SAME(fdatasync)
/* struct __sysctl_args is a mess */
- ENTRY_DIFF(sysctl)
+ ENTRY_COMP(sysctl)
ENTRY_SAME(mlock) /* 150 */
ENTRY_SAME(munlock)
ENTRY_SAME(mlockall)
diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
index 69dad5a850a8..d58eac1a8288 100644
--- a/arch/parisc/kernel/unwind.c
+++ b/arch/parisc/kernel/unwind.c
@@ -13,6 +13,7 @@
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/kallsyms.h>
+#include <linux/sort.h>
#include <asm/uaccess.h>
#include <asm/assembly.h>
@@ -28,7 +29,7 @@
#define dbg(x...)
#endif
-#define KERNEL_START (KERNEL_BINARY_TEXT_START - 0x1000)
+#define KERNEL_START (KERNEL_BINARY_TEXT_START)
extern struct unwind_table_entry __start___unwind[];
extern struct unwind_table_entry __stop___unwind[];
@@ -115,24 +116,18 @@ unwind_table_init(struct unwind_table *table, const char *name,
}
}
+static int cmp_unwind_table_entry(const void *a, const void *b)
+{
+ return ((const struct unwind_table_entry *)a)->region_start
+ - ((const struct unwind_table_entry *)b)->region_start;
+}
+
static void
unwind_table_sort(struct unwind_table_entry *start,
struct unwind_table_entry *finish)
{
- struct unwind_table_entry el, *p, *q;
-
- for (p = start + 1; p < finish; ++p) {
- if (p[0].region_start < p[-1].region_start) {
- el = *p;
- q = p;
- do {
- q[0] = q[-1];
- --q;
- } while (q > start &&
- el.region_start < q[-1].region_start);
- *q = el;
- }
- }
+ sort(start, finish - start, sizeof(struct unwind_table_entry),
+ cmp_unwind_table_entry, NULL);
}
struct unwind_table *
@@ -417,3 +412,30 @@ int unwind_to_user(struct unwind_frame_info *info)
return ret;
}
+
+unsigned long return_address(unsigned int level)
+{
+ struct unwind_frame_info info;
+ struct pt_regs r;
+ unsigned long sp;
+
+ /* initialize unwind info */
+ asm volatile ("copy %%r30, %0" : "=r"(sp));
+ memset(&r, 0, sizeof(struct pt_regs));
+ r.iaoq[0] = (unsigned long) current_text_addr();
+ r.gr[2] = (unsigned long) __builtin_return_address(0);
+ r.gr[30] = sp;
+ unwind_frame_init(&info, current, &r);
+
+ /* unwind stack */
+ ++level;
+ do {
+ if (unwind_once(&info) < 0 || info.ip == 0)
+ return 0;
+ if (!__kernel_text_address(info.ip)) {
+ return 0;
+ }
+ } while (info.ip && level--);
+
+ return info.ip;
+}
diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index fda4baa059b5..9dab4a4e09f7 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -78,9 +78,6 @@ SECTIONS
*/
. = ALIGN(PAGE_SIZE);
data_start = .;
- EXCEPTION_TABLE(16)
-
- NOTES
/* unwind info */
.PARISC.unwind : {
@@ -89,6 +86,9 @@ SECTIONS
__stop___unwind = .;
}
+ EXCEPTION_TABLE(16)
+ NOTES
+
/* Data */
RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
generated by cgit v1.2.3 (git 2.39.1) at 2024-08-13 02:16:39 +0000