Merge branch 'core' of git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile into perf/core

3 files changed, 43 insertions, 18 deletions

diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h
index 6b89f5e8602..86030f63ba0 100644
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h
@@ -123,6 +123,10 @@
 #define MSR_AMD64_IBSCTL                0xc001103a
 #define MSR_AMD64_IBSBRTARGET           0xc001103b
 
+/* Fam 15h MSRs */
+#define MSR_F15H_PERF_CTL               0xc0010200
+#define MSR_F15H_PERF_CTR               0xc0010201
+
 /* Fam 10h MSRs */
 #define MSR_FAM10H_MMIO_CONF_BASE       0xc0010058
 #define FAM10H_MMIO_CONF_ENABLE         (1<<0)
diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c
index 4e8baad36d3..358c8b9c96a 100644
--- a/arch/x86/oprofile/nmi_int.c
+++ b/arch/x86/oprofile/nmi_int.c
@@ -732,6 +732,9 @@ int __init op_nmi_init(struct oprofile_operations *ops)
                 case 0x14:
                         cpu_type = "x86-64/family14h";
                         break;
+                case 0x15:
+                        cpu_type = "x86-64/family15h";
+                        break;
                 default:
                         return -ENODEV;
                 }
diff --git a/arch/x86/oprofile/op_model_amd.c b/arch/x86/oprofile/op_model_amd.c
index a011bcc0f94..f2984d43a6b 100644
--- a/arch/x86/oprofile/op_model_amd.c
+++ b/arch/x86/oprofile/op_model_amd.c
@@ -29,11 +29,12 @@
 #include "op_x86_model.h"
 #include "op_counter.h"
 
-#define NUM_COUNTERS 4
+#define NUM_COUNTERS            4
+#define NUM_COUNTERS_F15H       6
 #ifdef CONFIG_OPROFILE_EVENT_MULTIPLEX
-#define NUM_VIRT_COUNTERS 32
+#define NUM_VIRT_COUNTERS       32
 #else
-#define NUM_VIRT_COUNTERS NUM_COUNTERS
+#define NUM_VIRT_COUNTERS       0
 #endif
 
 #define OP_EVENT_MASK                   0x0FFF
@@ -41,7 +42,8 @@
 
 #define MSR_AMD_EVENTSEL_RESERVED       ((0xFFFFFCF0ULL<<32)|(1ULL<<21))
 
-static unsigned long reset_value[NUM_VIRT_COUNTERS];
+static int num_counters;
+static unsigned long reset_value[OP_MAX_COUNTER];
 
 #define IBS_FETCH_SIZE                  6
 #define IBS_OP_SIZE                     12
@@ -387,7 +389,7 @@ static void op_mux_switch_ctrl(struct op_x86_model_spec const *model,
         int i;
 
         /* enable active counters */
-        for (i = 0; i < NUM_COUNTERS; ++i) {
+        for (i = 0; i < num_counters; ++i) {
                 int virt = op_x86_phys_to_virt(i);
                 if (!reset_value[virt])
                         continue;
@@ -406,7 +408,7 @@ static void op_amd_shutdown(struct op_msrs const * const msrs)
 {
         int i;
 
-        for (i = 0; i < NUM_COUNTERS; ++i) {
+        for (i = 0; i < num_counters; ++i) {
                 if (!msrs->counters[i].addr)
                         continue;
                 release_perfctr_nmi(MSR_K7_PERFCTR0 + i);
@@ -418,7 +420,7 @@ static int op_amd_fill_in_addresses(struct op_msrs * const msrs)
 {
         int i;
 
-        for (i = 0; i < NUM_COUNTERS; i++) {
+        for (i = 0; i < num_counters; i++) {
                 if (!reserve_perfctr_nmi(MSR_K7_PERFCTR0 + i))
                         goto fail;
                 if (!reserve_evntsel_nmi(MSR_K7_EVNTSEL0 + i)) {
@@ -426,8 +428,13 @@ static int op_amd_fill_in_addresses(struct op_msrs * const msrs)
                         goto fail;
                 }
                 /* both registers must be reserved */
-                msrs->counters[i].addr = MSR_K7_PERFCTR0 + i;
-                msrs->controls[i].addr = MSR_K7_EVNTSEL0 + i;
+                if (num_counters == NUM_COUNTERS_F15H) {
+                        msrs->counters[i].addr = MSR_F15H_PERF_CTR + (i << 1);
+                        msrs->controls[i].addr = MSR_F15H_PERF_CTL + (i << 1);
+                } else {
+                        msrs->controls[i].addr = MSR_K7_EVNTSEL0 + i;
+                        msrs->counters[i].addr = MSR_K7_PERFCTR0 + i;
+                }
                 continue;
         fail:
                 if (!counter_config[i].enabled)
@@ -447,7 +454,7 @@ static void op_amd_setup_ctrs(struct op_x86_model_spec const *model,
         int i;
 
         /* setup reset_value */
-        for (i = 0; i < NUM_VIRT_COUNTERS; ++i) {
+        for (i = 0; i < OP_MAX_COUNTER; ++i) {
                 if (counter_config[i].enabled
                     && msrs->counters[op_x86_virt_to_phys(i)].addr)
                         reset_value[i] = counter_config[i].count;
@@ -456,7 +463,7 @@ static void op_amd_setup_ctrs(struct op_x86_model_spec const *model,
         }
 
         /* clear all counters */
-        for (i = 0; i < NUM_COUNTERS; ++i) {
+        for (i = 0; i < num_counters; ++i) {
                 if (!msrs->controls[i].addr)
                         continue;
                 rdmsrl(msrs->controls[i].addr, val);
@@ -472,7 +479,7 @@ static void op_amd_setup_ctrs(struct op_x86_model_spec const *model,
         }
 
         /* enable active counters */
-        for (i = 0; i < NUM_COUNTERS; ++i) {
+        for (i = 0; i < num_counters; ++i) {
                 int virt = op_x86_phys_to_virt(i);
                 if (!reset_value[virt])
                         continue;
@@ -503,7 +510,7 @@ static int op_amd_check_ctrs(struct pt_regs * const regs,
         u64 val;
         int i;
 
-        for (i = 0; i < NUM_COUNTERS; ++i) {
+        for (i = 0; i < num_counters; ++i) {
                 int virt = op_x86_phys_to_virt(i);
                 if (!reset_value[virt])
                         continue;
@@ -526,7 +533,7 @@ static void op_amd_start(struct op_msrs const * const msrs)
         u64 val;
         int i;
 
-        for (i = 0; i < NUM_COUNTERS; ++i) {
+        for (i = 0; i < num_counters; ++i) {
                 if (!reset_value[op_x86_phys_to_virt(i)])
                         continue;
                 rdmsrl(msrs->controls[i].addr, val);
@@ -546,7 +553,7 @@ static void op_amd_stop(struct op_msrs const * const msrs)
          * Subtle: stop on all counters to avoid race with setting our
          * pm callback
          */
-        for (i = 0; i < NUM_COUNTERS; ++i) {
+        for (i = 0; i < num_counters; ++i) {
                 if (!reset_value[op_x86_phys_to_virt(i)])
                         continue;
                 rdmsrl(msrs->controls[i].addr, val);
@@ -698,18 +705,29 @@ static int setup_ibs_files(struct super_block *sb, struct dentry *root)
         return 0;
 }
 
+struct op_x86_model_spec op_amd_spec;
+
 static int op_amd_init(struct oprofile_operations *ops)
 {
         init_ibs();
         create_arch_files = ops->create_files;
         ops->create_files = setup_ibs_files;
+
+        if (boot_cpu_data.x86 == 0x15) {
+                num_counters = NUM_COUNTERS_F15H;
+        } else {
+                num_counters = NUM_COUNTERS;
+        }
+
+        op_amd_spec.num_counters = num_counters;
+        op_amd_spec.num_controls = num_counters;
+        op_amd_spec.num_virt_counters = max(num_counters, NUM_VIRT_COUNTERS);
+
         return 0;
 }
 
 struct op_x86_model_spec op_amd_spec = {
-        .num_counters           = NUM_COUNTERS,
-        .num_controls           = NUM_COUNTERS,
-        .num_virt_counters      = NUM_VIRT_COUNTERS,
+        /* num_counters/num_controls filled in at runtime */
         .reserved               = MSR_AMD_EVENTSEL_RESERVED,
         .event_mask             = OP_EVENT_MASK,
         .init                   = op_amd_init,