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Subject[RFC PATCH 17/17] perf/x86/intel/bts: Add PMU info
Date
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
---
arch/x86/events/intel/bts.c | 20 ++++++++++++++++++--
1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/arch/x86/events/intel/bts.c b/arch/x86/events/intel/bts.c
index 16076eb346..ce1dac7115 100644
--- a/arch/x86/events/intel/bts.c
+++ b/arch/x86/events/intel/bts.c
@@ -21,13 +21,22 @@
#include <linux/slab.h>
#include <linux/debugfs.h>
#include <linux/device.h>
-#include <linux/coredump.h>

#include <asm-generic/sizes.h>
#include <asm/perf_event.h>

#include "../perf_event.h"

+#define PMU_NAME "intel_bts"
+
+static struct intel_bts_pmu_info {
+ struct pmu_info pi;
+ u8 x86_family;
+ u8 x86_model;
+ u8 x86_step;
+ u8 __reserved_0[5];
+} bts_pmu_info;
+
struct bts_ctx {
struct perf_output_handle handle;
struct debug_store ds_back;
@@ -582,6 +591,12 @@ static __init int bts_init(void)
if (!boot_cpu_has(X86_FEATURE_DTES64) || !x86_pmu.bts)
return -ENODEV;

+ bts_pmu_info.pi.note_size = sizeof(bts_pmu_info.pi);
+ bts_pmu_info.pi.pmu_descsz = sizeof(bts_pmu_info) - bts_pmu_info.pi.note_size;
+ bts_pmu_info.x86_family = boot_cpu_data.x86;
+ bts_pmu_info.x86_model = boot_cpu_data.x86_model;
+ bts_pmu_info.x86_step = boot_cpu_data.x86_mask;
+
bts_pmu.capabilities = PERF_PMU_CAP_AUX_NO_SG | PERF_PMU_CAP_ITRACE |
PERF_PMU_CAP_EXCLUSIVE;
bts_pmu.task_ctx_nr = perf_sw_context;
@@ -593,7 +608,8 @@ static __init int bts_init(void)
bts_pmu.read = bts_event_read;
bts_pmu.setup_aux = bts_buffer_setup_aux;
bts_pmu.free_aux = bts_buffer_free_aux;
+ bts_pmu.pmu_info = &bts_pmu_info.pi;

- return perf_pmu_register(&bts_pmu, "intel_bts", -1);
+ return perf_pmu_register(&bts_pmu, PMU_NAME, -1);
}
arch_initcall(bts_init);
--
2.14.1
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