aboutsummaryrefslogtreecommitdiffstats
path: root/arch/x86
diff options
context:
space:
mode:
authorIngo Molnar <mingo@elte.hu>2008-11-07 13:22:10 -0500
committerIngo Molnar <mingo@elte.hu>2008-11-07 13:22:10 -0500
commit01aab518b084a547940ed6ff334e9a7721c7dc71 (patch)
tree627f0c7e4833b1c563aba403a1f731fc7c4f3b0c /arch/x86
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/x86')
-rw-r--r--arch/x86/oprofile/op_model_ppro.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/arch/x86/oprofile/op_model_ppro.c b/arch/x86/oprofile/op_model_ppro.c
index 0620d6d45f7d..3f1b81a83e2e 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;
27static int counter_width = 32; 27static int counter_width = 32;
28 28
29#define CTR_IS_RESERVED(msrs, c) (msrs->counters[(c)].addr ? 1 : 0) 29#define CTR_IS_RESERVED(msrs, c) (msrs->counters[(c)].addr ? 1 : 0)
30#define CTR_READ(l, h, msrs, c) do {rdmsr(msrs->counters[(c)].addr, (l), (h)); } while (0) 30#define CTR_OVERFLOWED(n) (!((n) & (1ULL<<(counter_width-1))))
31#define CTR_OVERFLOWED(n) (!((n) & (1U<<(counter_width-1))))
32 31
33#define CTRL_IS_RESERVED(msrs, c) (msrs->controls[(c)].addr ? 1 : 0) 32#define CTRL_IS_RESERVED(msrs, c) (msrs->controls[(c)].addr ? 1 : 0)
34#define CTRL_READ(l, h, msrs, c) do {rdmsr((msrs->controls[(c)].addr), (l), (h)); } while (0) 33#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)
124static int ppro_check_ctrs(struct pt_regs * const regs, 123static int ppro_check_ctrs(struct pt_regs * const regs,
125 struct op_msrs const * const msrs) 124 struct op_msrs const * const msrs)
126{ 125{
127 unsigned int low, high; 126 u64 val;
128 int i; 127 int i;
129 128
130 for (i = 0 ; i < num_counters; ++i) { 129 for (i = 0 ; i < num_counters; ++i) {
131 if (!reset_value[i]) 130 if (!reset_value[i])
132 continue; 131 continue;
133 CTR_READ(low, high, msrs, i); 132 rdmsrl(msrs->counters[i].addr, val);
134 if (CTR_OVERFLOWED(low)) { 133 if (CTR_OVERFLOWED(val)) {
135 oprofile_add_sample(regs, i); 134 oprofile_add_sample(regs, i);
136 wrmsrl(msrs->counters[i].addr, -reset_value[i]); 135 wrmsrl(msrs->counters[i].addr, -reset_value[i]);
137 } 136 }