summaryrefslogtreecommitdiffstats
path: root/arch/mips/oprofile
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@g5.osdl.org>2006-01-10 09:00:55 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-10 09:00:55 -0800
commitd936cfc72032fb4af03d1edd99596d18ea1f081c (patch)
tree6d524c57fbff717ba82c6f4925659f6ec901d45d /arch/mips/oprofile
parent4f47707b056bd2e3627ef390557ee93d312daba5 (diff)
parentadfc76419bff33542d4fd53dc7f24818f846f194 (diff)
downloadop-kernel-dev-d936cfc72032fb4af03d1edd99596d18ea1f081c.zip
op-kernel-dev-d936cfc72032fb4af03d1edd99596d18ea1f081c.tar.gz
Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
Diffstat (limited to 'arch/mips/oprofile')
-rw-r--r--arch/mips/oprofile/common.c3
-rw-r--r--arch/mips/oprofile/op_impl.h4
-rw-r--r--arch/mips/oprofile/op_model_mipsxx.c22
3 files changed, 25 insertions, 4 deletions
diff --git a/arch/mips/oprofile/common.c b/arch/mips/oprofile/common.c
index dd2cc42..53f9889 100644
--- a/arch/mips/oprofile/common.c
+++ b/arch/mips/oprofile/common.c
@@ -75,7 +75,10 @@ int __init oprofile_arch_init(struct oprofile_operations *ops)
int res;
switch (current_cpu_data.cputype) {
+ case CPU_5KC:
+ case CPU_20KC:
case CPU_24K:
+ case CPU_25KF:
lmodel = &op_model_mipsxx;
break;
diff --git a/arch/mips/oprofile/op_impl.h b/arch/mips/oprofile/op_impl.h
index f012155..5cfce7d 100644
--- a/arch/mips/oprofile/op_impl.h
+++ b/arch/mips/oprofile/op_impl.h
@@ -12,8 +12,8 @@
struct pt_regs;
-extern void null_perf_irq(struct pt_regs *regs);
-extern void (*perf_irq)(struct pt_regs *regs);
+extern int null_perf_irq(struct pt_regs *regs);
+extern int (*perf_irq)(struct pt_regs *regs);
/* Per-counter configuration as set via oprofilefs. */
struct op_counter_config {
diff --git a/arch/mips/oprofile/op_model_mipsxx.c b/arch/mips/oprofile/op_model_mipsxx.c
index d36b64d..1d1eee4 100644
--- a/arch/mips/oprofile/op_model_mipsxx.c
+++ b/arch/mips/oprofile/op_model_mipsxx.c
@@ -114,11 +114,12 @@ static void mipsxx_cpu_stop(void *args)
}
}
-static void mipsxx_perfcount_handler(struct pt_regs *regs)
+static int mipsxx_perfcount_handler(struct pt_regs *regs)
{
unsigned int counters = op_model_mipsxx.num_counters;
unsigned int control;
unsigned int counter;
+ int handled = 0;
switch (counters) {
#define HANDLE_COUNTER(n) \
@@ -129,12 +130,15 @@ static void mipsxx_perfcount_handler(struct pt_regs *regs)
(counter & M_COUNTER_OVERFLOW)) { \
oprofile_add_sample(regs, n); \
write_c0_perfcntr ## n(reg.counter[n]); \
+ handled = 1; \
}
HANDLE_COUNTER(3)
HANDLE_COUNTER(2)
HANDLE_COUNTER(1)
HANDLE_COUNTER(0)
}
+
+ return handled;
}
#define M_CONFIG1_PC (1 << 4)
@@ -176,17 +180,31 @@ static int __init mipsxx_init(void)
int counters;
counters = n_counters();
- if (counters == 0)
+ if (counters == 0) {
+ printk(KERN_ERR "Oprofile: CPU has no performance counters\n");
return -ENODEV;
+ }
reset_counters(counters);
op_model_mipsxx.num_counters = counters;
switch (current_cpu_data.cputype) {
+ case CPU_20KC:
+ op_model_mipsxx.cpu_type = "mips/20K";
+ break;
+
case CPU_24K:
op_model_mipsxx.cpu_type = "mips/24K";
break;
+ case CPU_25KF:
+ op_model_mipsxx.cpu_type = "mips/25K";
+ break;
+
+ case CPU_5KC:
+ op_model_mipsxx.cpu_type = "mips/5K";
+ break;
+
default:
printk(KERN_ERR "Profiling unsupported for this CPU\n");
OpenPOWER on IntegriCloud