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authorIngo Molnar <mingo@elte.hu>2008-11-07 19:22:10 +0100
committerIngo Molnar <mingo@elte.hu>2008-11-07 19:22:10 +0100
commit01aab518b084a547940ed6ff334e9a7721c7dc71 (patch)
tree627f0c7e4833b1c563aba403a1f731fc7c4f3b0c /arch
parentfed4d59b6ec5481caceb17863f19a0b0e5eaa939 (diff)
parent7c64ade53a6f977d73f16243865c42ceae999aea (diff)
Merge branch 'oprofile-for-tip' of git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile into x86/urgent
Diffstat (limited to 'arch')
-rw-r--r--arch/Kconfig2
-rw-r--r--arch/x86/oprofile/op_model_ppro.c9
2 files changed, 5 insertions, 6 deletions
diff --git a/arch/Kconfig b/arch/Kconfig
index e6ab550bceb..8977d99987c 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -21,7 +21,7 @@ config OPROFILE_IBS
Instruction-Based Sampling (IBS) is a new profiling
technique that provides rich, precise program performance
information. IBS is introduced by AMD Family10h processors
- (AMD Opteron Quad-Core processor “Barcelona”) to overcome
+ (AMD Opteron Quad-Core processor "Barcelona") to overcome
the limitations of conventional performance counter
sampling.
diff --git a/arch/x86/oprofile/op_model_ppro.c b/arch/x86/oprofile/op_model_ppro.c
index 0620d6d45f7..3f1b81a83e2 100644
--- a/arch/x86/oprofile/op_model_ppro.c
+++ b/arch/x86/oprofile/op_model_ppro.c
@@ -27,8 +27,7 @@ static int num_counters = 2;
static int counter_width = 32;
#define CTR_IS_RESERVED(msrs, c) (msrs->counters[(c)].addr ? 1 : 0)
-#define CTR_READ(l, h, msrs, c) do {rdmsr(msrs->counters[(c)].addr, (l), (h)); } while (0)
-#define CTR_OVERFLOWED(n) (!((n) & (1U<<(counter_width-1))))
+#define CTR_OVERFLOWED(n) (!((n) & (1ULL<<(counter_width-1))))
#define CTRL_IS_RESERVED(msrs, c) (msrs->controls[(c)].addr ? 1 : 0)
#define CTRL_READ(l, h, msrs, c) do {rdmsr((msrs->controls[(c)].addr), (l), (h)); } while (0)
@@ -124,14 +123,14 @@ static void ppro_setup_ctrs(struct op_msrs const * const msrs)
static int ppro_check_ctrs(struct pt_regs * const regs,
struct op_msrs const * const msrs)
{
- unsigned int low, high;
+ u64 val;
int i;
for (i = 0 ; i < num_counters; ++i) {
if (!reset_value[i])
continue;
- CTR_READ(low, high, msrs, i);
- if (CTR_OVERFLOWED(low)) {
+ rdmsrl(msrs->counters[i].addr, val);
+ if (CTR_OVERFLOWED(val)) {
oprofile_add_sample(regs, i);
wrmsrl(msrs->counters[i].addr, -reset_value[i]);
}