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authorLinus Torvalds <torvalds@linux-foundation.org>2009-12-16 10:12:07 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-16 10:12:07 -0800
commitb2adf0cbec4cf0934c63f48f893e0cebde380d0c (patch)
treef4073c90ec71ebb37a0934dc14b52959ad58bfaa /arch/parisc
parenta79960e576ebca9dbf24489b562689f2be7e9ff0 (diff)
parentd0608b54740c82b08056b7611e38a3fd73be3564 (diff)
downloadlinux-2.6.34-ux500-b2adf0cbec4cf0934c63f48f893e0cebde380d0c.tar.gz
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6: parisc: Fixup last users of irq_chip->typename parisc: convert /proc/pdc/{lcd,led} to seq_file parisc: Convert BUG() to use unreachable() parisc: Replace old style lock init in smp.c parisc: use sort() instead of home-made implementation (v2) parisc: add CALLER_ADDR{0-6} macros parisc: remove unused IRQSTAT_SIRQ_PEND and IRQSTAT_SZ defines parisc: remove duplicated #include
Diffstat (limited to 'arch/parisc')
-rw-r--r--arch/parisc/include/asm/bug.h4
-rw-r--r--arch/parisc/include/asm/ftrace.h14
-rw-r--r--arch/parisc/kernel/asm-offsets.c3
-rw-r--r--arch/parisc/kernel/irq.c4
-rw-r--r--arch/parisc/kernel/signal.c1
-rw-r--r--arch/parisc/kernel/smp.c9
-rw-r--r--arch/parisc/kernel/unwind.c50
7 files changed, 60 insertions, 25 deletions
diff --git a/arch/parisc/include/asm/bug.h b/arch/parisc/include/asm/bug.h
index 8cfc553fc83..75e46c557a1 100644
--- a/arch/parisc/include/asm/bug.h
+++ b/arch/parisc/include/asm/bug.h
@@ -32,14 +32,14 @@
"\t.popsection" \
: : "i" (__FILE__), "i" (__LINE__), \
"i" (0), "i" (sizeof(struct bug_entry)) ); \
- for(;;) ; \
+ unreachable(); \
} while(0)
#else
#define BUG() \
do { \
asm volatile(PARISC_BUG_BREAK_ASM : : ); \
- for(;;) ; \
+ unreachable(); \
} while(0)
#endif
diff --git a/arch/parisc/include/asm/ftrace.h b/arch/parisc/include/asm/ftrace.h
index 2fa05dd6aee..72c0fafaa03 100644
--- a/arch/parisc/include/asm/ftrace.h
+++ b/arch/parisc/include/asm/ftrace.h
@@ -20,6 +20,20 @@ struct ftrace_ret_stack {
* Defined in entry.S
*/
extern void return_to_handler(void);
+
+
+extern unsigned long return_address(unsigned int);
+
+#define HAVE_ARCH_CALLER_ADDR
+
+#define CALLER_ADDR0 ((unsigned long)__builtin_return_address(0))
+#define CALLER_ADDR1 return_address(1)
+#define CALLER_ADDR2 return_address(2)
+#define CALLER_ADDR3 return_address(3)
+#define CALLER_ADDR4 return_address(4)
+#define CALLER_ADDR5 return_address(5)
+#define CALLER_ADDR6 return_address(6)
+
#endif /* __ASSEMBLY__ */
#endif /* _ASM_PARISC_FTRACE_H */
diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index fcd3c707bf1..ec787b411e9 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 f47465e8d04..efbcee5d222 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,
@@ -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);
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index e8467e4aa8d..fb37ac52e46 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 1fd0f0cec03..3f2fce8ce6b 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/unwind.c b/arch/parisc/kernel/unwind.c
index a36799e8569..d58eac1a828 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>
@@ -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;
+}