From 7e7478c6bc0e011d2854b21f190cc3a1dba89905 Mon Sep 17 00:00:00 2001 From: Robert Richter Date: Thu, 16 Jul 2009 13:09:53 +0200 Subject: oprofile: Grouping multiplexing code in op_model_amd.c This patch moves some multiplexing code to the new function op_mux_fill_in_addresses(). Also, the whole multiplexing code is now at a single location. Signed-off-by: Robert Richter --- arch/x86/oprofile/op_model_amd.c | 75 ++++++++++++++++++++++------------------ 1 file changed, 41 insertions(+), 34 deletions(-) (limited to 'arch/x86/oprofile/op_model_amd.c') diff --git a/arch/x86/oprofile/op_model_amd.c b/arch/x86/oprofile/op_model_amd.c index 67f830d12e0..644980f0392 100644 --- a/arch/x86/oprofile/op_model_amd.c +++ b/arch/x86/oprofile/op_model_amd.c @@ -74,6 +74,45 @@ static struct op_ibs_config ibs_config; #endif +#ifdef CONFIG_OPROFILE_EVENT_MULTIPLEX + +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; + if (reserve_perfctr_nmi(MSR_K7_PERFCTR0 + i)) + msrs->multiplex[i].addr = MSR_K7_PERFCTR0 + hw_counter; + else + msrs->multiplex[i].addr = 0; + } +} + +static void op_mux_switch_ctrl(struct op_x86_model_spec const *model, + struct op_msrs const * const msrs) +{ + u64 val; + int i; + + /* enable active counters */ + for (i = 0; i < NUM_COUNTERS; ++i) { + int virt = op_x86_phys_to_virt(i); + if (!counter_config[virt].enabled) + continue; + rdmsrl(msrs->controls[i].addr, val); + val &= model->reserved; + val |= op_x86_get_ctrl(model, &counter_config[virt]); + wrmsrl(msrs->controls[i].addr, val); + } +} + +#else + +static inline void op_mux_fill_in_addresses(struct op_msrs * const msrs) { } + +#endif + /* functions for op_amd_spec */ static void op_amd_fill_in_addresses(struct op_msrs * const msrs) @@ -94,15 +133,7 @@ static void op_amd_fill_in_addresses(struct op_msrs * const msrs) msrs->controls[i].addr = 0; } -#ifdef CONFIG_OPROFILE_EVENT_MULTIPLEX - for (i = 0; i < NUM_VIRT_COUNTERS; i++) { - int hw_counter = i % NUM_COUNTERS; - if (reserve_perfctr_nmi(MSR_K7_PERFCTR0 + i)) - msrs->multiplex[i].addr = MSR_K7_PERFCTR0 + hw_counter; - else - msrs->multiplex[i].addr = 0; - } -#endif + op_mux_fill_in_addresses(msrs); } static void op_amd_setup_ctrs(struct op_x86_model_spec const *model, @@ -155,30 +186,6 @@ static void op_amd_setup_ctrs(struct op_x86_model_spec const *model, } } - -#ifdef CONFIG_OPROFILE_EVENT_MULTIPLEX - -static void op_amd_switch_ctrl(struct op_x86_model_spec const *model, - struct op_msrs const * const msrs) -{ - u64 val; - int i; - - /* enable active counters */ - for (i = 0; i < NUM_COUNTERS; ++i) { - int virt = op_x86_phys_to_virt(i); - if (!counter_config[virt].enabled) - continue; - rdmsrl(msrs->controls[i].addr, val); - val &= model->reserved; - val |= op_x86_get_ctrl(model, &counter_config[virt]); - wrmsrl(msrs->controls[i].addr, val); - } -} - -#endif - - #ifdef CONFIG_OPROFILE_IBS static inline int @@ -535,6 +542,6 @@ struct op_x86_model_spec const op_amd_spec = { .stop = &op_amd_stop, .shutdown = &op_amd_shutdown, #ifdef CONFIG_OPROFILE_EVENT_MULTIPLEX - .switch_ctrl = &op_amd_switch_ctrl, + .switch_ctrl = &op_mux_switch_ctrl, #endif }; -- cgit v1.2.3