diff options
| author | Robert Richter <robert.richter@amd.com> | 2009-07-10 15:47:17 +0200 |
|---|---|---|
| committer | Robert Richter <robert.richter@amd.com> | 2009-07-20 16:43:21 +0200 |
| commit | 61d149d5248ad7428801cdede0f5fcc2b90cd61c (patch) | |
| tree | 7cfc04e6567cf34f2cba40f86287a51566d163ad /arch | |
| parent | oprofile: Adding switch counter to oprofile statistic variables (diff) | |
| download | linux-61d149d5248ad7428801cdede0f5fcc2b90cd61c.tar.xz linux-61d149d5248ad7428801cdede0f5fcc2b90cd61c.zip | |
x86/oprofile: Implement op_x86_virt_to_phys()
This patch implements a common x86 function to convert virtual counter
numbers to physical.
Signed-off-by: Robert Richter <robert.richter@amd.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/oprofile/nmi_int.c | 6 | ||||
| -rw-r--r-- | arch/x86/oprofile/op_model_amd.c | 2 | ||||
| -rw-r--r-- | arch/x86/oprofile/op_x86_model.h | 1 |
3 files changed, 8 insertions, 1 deletions
diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c index 7b3362f9abdb..5856e61cb098 100644 --- a/arch/x86/oprofile/nmi_int.c +++ b/arch/x86/oprofile/nmi_int.c @@ -129,6 +129,11 @@ inline int op_x86_phys_to_virt(int phys) return __get_cpu_var(switch_index) + phys; } +inline int op_x86_virt_to_phys(int virt) +{ + return virt % model->num_counters; +} + static void nmi_shutdown_mux(void) { int i; @@ -270,6 +275,7 @@ static void mux_clone(int cpu) #else inline int op_x86_phys_to_virt(int phys) { return phys; } +inline int op_x86_virt_to_phys(int virt) { return virt; } static inline void nmi_shutdown_mux(void) { } static inline int nmi_setup_mux(void) { return 1; } static inline void diff --git a/arch/x86/oprofile/op_model_amd.c b/arch/x86/oprofile/op_model_amd.c index dce69b5979e6..1ea19829d985 100644 --- a/arch/x86/oprofile/op_model_amd.c +++ b/arch/x86/oprofile/op_model_amd.c @@ -81,7 +81,7 @@ static void op_mux_fill_in_addresses(struct op_msrs * const msrs) int i; for (i = 0; i < NUM_VIRT_COUNTERS; i++) { - int hw_counter = i % NUM_COUNTERS; + int hw_counter = op_x86_virt_to_phys(i); if (reserve_perfctr_nmi(MSR_K7_PERFCTR0 + i)) msrs->multiplex[i].addr = MSR_K7_PERFCTR0 + hw_counter; else diff --git a/arch/x86/oprofile/op_x86_model.h b/arch/x86/oprofile/op_x86_model.h index 4e2e7c2c519f..b83776180c7f 100644 --- a/arch/x86/oprofile/op_x86_model.h +++ b/arch/x86/oprofile/op_x86_model.h @@ -60,6 +60,7 @@ struct op_counter_config; extern u64 op_x86_get_ctrl(struct op_x86_model_spec const *model, struct op_counter_config *counter_config); extern int op_x86_phys_to_virt(int phys); +extern int op_x86_virt_to_phys(int virt); extern struct op_x86_model_spec op_ppro_spec; extern struct op_x86_model_spec op_p4_spec; |