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authorRobert Richter <robert.richter@amd.com>2009-07-16 13:09:53 +0200
committerRobert Richter <robert.richter@amd.com>2009-07-20 16:43:19 +0200
commit7e7478c6bc0e011d2854b21f190cc3a1dba89905 (patch)
tree9d3c14460d201f095954c073693e741a48de2f44 /arch
parentd8471ad3ab613a1ba7abd3aad46659de39a2871c (diff)
downloadlinux-2.6.38-lt-ux500-7e7478c6bc0e011d2854b21f190cc3a1dba89905.tar.gz
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 <robert.richter@amd.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/oprofile/op_model_amd.c75
1 files changed, 41 insertions, 34 deletions
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
};