diff options
| author | Kan Liang <kan.liang@linux.intel.com> | 2022-09-01 16:09:59 +0300 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2022-09-06 12:33:03 +0300 |
| commit | ee9db0e14b0575aa827579dc2471a29ec5fc6877 (patch) | |
| tree | 6cba0ca6f1813ad4fe26b2699220c5bb6bc196a0 /arch/x86/events/intel/ds.c | |
| parent | e16fd7f2cb1a65555cfe76f983eaefb1eab7471f (diff) | |
| download | linux-ee9db0e14b0575aa827579dc2471a29ec5fc6877.tar.xz | |
perf: Use sample_flags for txn
Use the new sample_flags to indicate whether the txn field is filled by
the PMU driver.
Remove the txn field from the perf_sample_data_init() to minimize the
number of cache lines touched.
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220901130959.1285717-7-kan.liang@linux.intel.com
Diffstat (limited to 'arch/x86/events/intel/ds.c')
| -rw-r--r-- | arch/x86/events/intel/ds.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/x86/events/intel/ds.c b/arch/x86/events/intel/ds.c index bde73d492889..a5275c235c2a 100644 --- a/arch/x86/events/intel/ds.c +++ b/arch/x86/events/intel/ds.c @@ -1628,9 +1628,11 @@ static void setup_pebs_fixed_sample_data(struct perf_event *event, data->weight.full = intel_get_tsx_weight(pebs->tsx_tuning); data->sample_flags |= PERF_SAMPLE_WEIGHT_TYPE; } - if (sample_type & PERF_SAMPLE_TRANSACTION) + if (sample_type & PERF_SAMPLE_TRANSACTION) { data->txn = intel_get_tsx_transaction(pebs->tsx_tuning, pebs->ax); + data->sample_flags |= PERF_SAMPLE_TRANSACTION; + } } /* @@ -1780,9 +1782,11 @@ static void setup_pebs_adaptive_sample_data(struct perf_event *event, if (sample_type & PERF_SAMPLE_ADDR_TYPE) data->addr = meminfo->address; - if (sample_type & PERF_SAMPLE_TRANSACTION) + if (sample_type & PERF_SAMPLE_TRANSACTION) { data->txn = intel_get_tsx_transaction(meminfo->tsx_tuning, gprs ? gprs->ax : 0); + data->sample_flags |= PERF_SAMPLE_TRANSACTION; + } } if (format_size & PEBS_DATACFG_XMMS) { |