* [PATCH v5 0/2] perf tool: 'config3' attribute support @ 2023-02-17 22:32 Rob Herring 2023-02-17 22:32 ` [PATCH v5 1/2] perf tools: Sync perf_event_attr::config3 addition Rob Herring 2023-02-17 22:32 ` [PATCH v5 2/2] perf: Add support for perf_event_attr::config3 Rob Herring 0 siblings, 2 replies; 7+ messages in thread From: Rob Herring @ 2023-02-17 22:32 UTC (permalink / raw) To: Peter Zijlstra, Ingo Molnar, Arnaldo Carvalho de Melo, Mark Rutland, Alexander Shishkin, Jiri Olsa, Namhyung Kim Cc: Leo Yan, James Clark, linux-kernel, linux-perf-users This series adds the perf tool support for 'config3' attr. This is the last part to enable Arm SPEv1.2 support. The necessary kernel side changes are pending for v6.3[1]. [1] https://lore.kernel.org/all/20230207124250.GA12385@willie-the-truck/ --- Changes in v5: - Rebase on v6.2-rc1 - Drop applied config attr fix - Link to v4: https://lore.kernel.org/r/20220914-arm-perf-tool-spe1-2-v2-v4-0-83c098e6212e@kernel.org Changes in v4: - Fix event parsing test segfault - Add 'config3' in event parsing tests - Link to v3: https://lore.kernel.org/r/20220914-arm-perf-tool-spe1-2-v2-v3-0-8189fc04dcc6@kernel.org --- Rob Herring (2): perf tools: Sync perf_event_attr::config3 addition perf: Add support for perf_event_attr::config3 tools/include/uapi/linux/perf_event.h | 3 +++ tools/perf/tests/parse-events.c | 13 ++++++++++++- tools/perf/util/parse-events.c | 6 ++++++ tools/perf/util/parse-events.h | 1 + tools/perf/util/parse-events.l | 1 + tools/perf/util/pmu.c | 3 +++ tools/perf/util/pmu.h | 1 + 7 files changed, 27 insertions(+), 1 deletion(-) --- base-commit: 9abf2313adc1ca1b6180c508c25f22f9395cc780 change-id: 20220914-arm-perf-tool-spe1-2-v2-cab789c5d598 Best regards, -- Rob Herring <robh@kernel.org> ^ permalink raw reply [flat|nested] 7+ messages in thread
* [PATCH v5 1/2] perf tools: Sync perf_event_attr::config3 addition 2023-02-17 22:32 [PATCH v5 0/2] perf tool: 'config3' attribute support Rob Herring @ 2023-02-17 22:32 ` Rob Herring 2023-02-18 13:21 ` Arnaldo Carvalho de Melo 2023-02-23 14:23 ` kajoljain 2023-02-17 22:32 ` [PATCH v5 2/2] perf: Add support for perf_event_attr::config3 Rob Herring 1 sibling, 2 replies; 7+ messages in thread From: Rob Herring @ 2023-02-17 22:32 UTC (permalink / raw) To: Peter Zijlstra, Ingo Molnar, Arnaldo Carvalho de Melo, Mark Rutland, Alexander Shishkin, Jiri Olsa, Namhyung Kim Cc: Leo Yan, James Clark, linux-kernel, linux-perf-users Arm SPEv1.2 adds another 64-bits of event filtering control. As the existing perf_event_attr::configN fields are all used up for SPE PMU, an additional field is needed. Add a new 'config3' field. Signed-off-by: Rob Herring <robh@kernel.org> --- This matches commit 09519ec3b19e ("perf: Add perf_event_attr::config3") for the kernel queued in linux-next. --- tools/include/uapi/linux/perf_event.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/tools/include/uapi/linux/perf_event.h b/tools/include/uapi/linux/perf_event.h index ea6defacc1a7..a38814ce9485 100644 --- a/tools/include/uapi/linux/perf_event.h +++ b/tools/include/uapi/linux/perf_event.h @@ -365,6 +365,7 @@ enum perf_event_read_format { #define PERF_ATTR_SIZE_VER5 112 /* add: aux_watermark */ #define PERF_ATTR_SIZE_VER6 120 /* add: aux_sample_size */ #define PERF_ATTR_SIZE_VER7 128 /* add: sig_data */ +#define PERF_ATTR_SIZE_VER8 136 /* add: config3 */ /* * Hardware event_id to monitor via a performance monitoring event: @@ -506,6 +507,8 @@ struct perf_event_attr { * truncated accordingly on 32 bit architectures. */ __u64 sig_data; + + __u64 config3; /* extension of config2 */ }; /* -- 2.39.1 ^ permalink raw reply related [flat|nested] 7+ messages in thread
* Re: [PATCH v5 1/2] perf tools: Sync perf_event_attr::config3 addition 2023-02-17 22:32 ` [PATCH v5 1/2] perf tools: Sync perf_event_attr::config3 addition Rob Herring @ 2023-02-18 13:21 ` Arnaldo Carvalho de Melo 2023-03-20 18:21 ` Rob Herring 2023-02-23 14:23 ` kajoljain 1 sibling, 1 reply; 7+ messages in thread From: Arnaldo Carvalho de Melo @ 2023-02-18 13:21 UTC (permalink / raw) To: Rob Herring Cc: Peter Zijlstra, Ingo Molnar, Mark Rutland, Alexander Shishkin, Jiri Olsa, Namhyung Kim, Leo Yan, James Clark, linux-kernel, linux-perf-users Em Fri, Feb 17, 2023 at 04:32:10PM -0600, Rob Herring escreveu: > Arm SPEv1.2 adds another 64-bits of event filtering control. As the > existing perf_event_attr::configN fields are all used up for SPE PMU, an > additional field is needed. Add a new 'config3' field. > > Signed-off-by: Rob Herring <robh@kernel.org> > --- > This matches commit 09519ec3b19e ("perf: Add perf_event_attr::config3") > for the kernel queued in linux-next. When you mention linux-next where was it that it picked this from? For me to get this merged into the perf tools "next" (perf/core) it must already have been merged in the kernel counterpart (tip/perf/core). Ok so it is not in tip/perf/core, but got in next yesterday, and PeterZ acked it, good, will process it soon. - Arnaldo ⬢[acme@toolbox perf]$ git show 09519ec3b19e commit 09519ec3b19e4144b5f6e269c54fbb9c294a9fcb Author: Rob Herring <robh@kernel.org> Date: Mon Jan 9 13:26:23 2023 -0600 perf: Add perf_event_attr::config3 Arm SPEv1.2 adds another 64-bits of event filtering control. As the existing perf_event_attr::configN fields are all used up for SPE PMU, an additional field is needed. Add a new 'config3' field. Tested-by: James Clark <james.clark@arm.com> Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20220825-arm-spe-v8-7-v4-7-327f860daf28@kernel.org Signed-off-by: Will Deacon <will@kernel.org> diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h index ccb7f5dad59be96b..37675437b76860ae 100644 --- a/include/uapi/linux/perf_event.h +++ b/include/uapi/linux/perf_event.h @@ -374,6 +374,7 @@ enum perf_event_read_format { #define PERF_ATTR_SIZE_VER5 112 /* add: aux_watermark */ #define PERF_ATTR_SIZE_VER6 120 /* add: aux_sample_size */ #define PERF_ATTR_SIZE_VER7 128 /* add: sig_data */ +#define PERF_ATTR_SIZE_VER8 136 /* add: config3 */ /* * Hardware event_id to monitor via a performance monitoring event: @@ -515,6 +516,8 @@ struct perf_event_attr { * truncated accordingly on 32 bit architectures. */ __u64 sig_data; + + __u64 config3; /* extension of config2 */ }; /* ⬢[acme@toolbox perf]$ ⬢[acme@toolbox perf]$ ⬢[acme@toolbox perf]$ ⬢[acme@toolbox perf]$ ⬢[acme@toolbox perf]$ git tag --contains 09519ec3b19e4144b5f6e269c54fbb9c294a9fcb next-20230217 ⬢[acme@toolbox perf]$ > --- > tools/include/uapi/linux/perf_event.h | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/tools/include/uapi/linux/perf_event.h b/tools/include/uapi/linux/perf_event.h > index ea6defacc1a7..a38814ce9485 100644 > --- a/tools/include/uapi/linux/perf_event.h > +++ b/tools/include/uapi/linux/perf_event.h > @@ -365,6 +365,7 @@ enum perf_event_read_format { > #define PERF_ATTR_SIZE_VER5 112 /* add: aux_watermark */ > #define PERF_ATTR_SIZE_VER6 120 /* add: aux_sample_size */ > #define PERF_ATTR_SIZE_VER7 128 /* add: sig_data */ > +#define PERF_ATTR_SIZE_VER8 136 /* add: config3 */ > > /* > * Hardware event_id to monitor via a performance monitoring event: > @@ -506,6 +507,8 @@ struct perf_event_attr { > * truncated accordingly on 32 bit architectures. > */ > __u64 sig_data; > + > + __u64 config3; /* extension of config2 */ > }; > > /* > > -- > 2.39.1 > ^ permalink raw reply related [flat|nested] 7+ messages in thread
* Re: [PATCH v5 1/2] perf tools: Sync perf_event_attr::config3 addition 2023-02-18 13:21 ` Arnaldo Carvalho de Melo @ 2023-03-20 18:21 ` Rob Herring 2023-03-21 12:43 ` Arnaldo Carvalho de Melo 0 siblings, 1 reply; 7+ messages in thread From: Rob Herring @ 2023-03-20 18:21 UTC (permalink / raw) To: Arnaldo Carvalho de Melo Cc: Peter Zijlstra, Ingo Molnar, Mark Rutland, Alexander Shishkin, Jiri Olsa, Namhyung Kim, Leo Yan, James Clark, linux-kernel, linux-perf-users On Sat, Feb 18, 2023 at 7:21 AM Arnaldo Carvalho de Melo <acme@kernel.org> wrote: > > Em Fri, Feb 17, 2023 at 04:32:10PM -0600, Rob Herring escreveu: > > Arm SPEv1.2 adds another 64-bits of event filtering control. As the > > existing perf_event_attr::configN fields are all used up for SPE PMU, an > > additional field is needed. Add a new 'config3' field. > > > > Signed-off-by: Rob Herring <robh@kernel.org> > > --- > > This matches commit 09519ec3b19e ("perf: Add perf_event_attr::config3") > > for the kernel queued in linux-next. > > When you mention linux-next where was it that it picked this from? > > For me to get this merged into the perf tools "next" (perf/core) it must > already have been merged in the kernel counterpart (tip/perf/core). > > Ok so it is not in tip/perf/core, but got in next yesterday, and PeterZ > acked it, good, will process it soon. Hi Arnaldo, Are you going to apply this or are you expecting something from me? Rob ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v5 1/2] perf tools: Sync perf_event_attr::config3 addition 2023-03-20 18:21 ` Rob Herring @ 2023-03-21 12:43 ` Arnaldo Carvalho de Melo 0 siblings, 0 replies; 7+ messages in thread From: Arnaldo Carvalho de Melo @ 2023-03-21 12:43 UTC (permalink / raw) To: Rob Herring Cc: Peter Zijlstra, Ingo Molnar, Mark Rutland, Alexander Shishkin, Jiri Olsa, Namhyung Kim, Leo Yan, James Clark, linux-kernel, linux-perf-users Em Mon, Mar 20, 2023 at 01:21:10PM -0500, Rob Herring escreveu: > On Sat, Feb 18, 2023 at 7:21 AM Arnaldo Carvalho de Melo > <acme@kernel.org> wrote: > > > > Em Fri, Feb 17, 2023 at 04:32:10PM -0600, Rob Herring escreveu: > > > Arm SPEv1.2 adds another 64-bits of event filtering control. As the > > > existing perf_event_attr::configN fields are all used up for SPE PMU, an > > > additional field is needed. Add a new 'config3' field. > > > > > > Signed-off-by: Rob Herring <robh@kernel.org> > > > --- > > > This matches commit 09519ec3b19e ("perf: Add perf_event_attr::config3") > > > for the kernel queued in linux-next. > > > > When you mention linux-next where was it that it picked this from? > > > > For me to get this merged into the perf tools "next" (perf/core) it must > > already have been merged in the kernel counterpart (tip/perf/core). > > > > Ok so it is not in tip/perf/core, but got in next yesterday, and PeterZ > > acked it, good, will process it soon. > > Hi Arnaldo, Are you going to apply this or are you expecting something from me? Sorry for the delay, applied. - Arnaldo ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v5 1/2] perf tools: Sync perf_event_attr::config3 addition 2023-02-17 22:32 ` [PATCH v5 1/2] perf tools: Sync perf_event_attr::config3 addition Rob Herring 2023-02-18 13:21 ` Arnaldo Carvalho de Melo @ 2023-02-23 14:23 ` kajoljain 1 sibling, 0 replies; 7+ messages in thread From: kajoljain @ 2023-02-23 14:23 UTC (permalink / raw) To: Rob Herring, Peter Zijlstra, Ingo Molnar, Arnaldo Carvalho de Melo, Mark Rutland, Alexander Shishkin, Jiri Olsa, Namhyung Kim Cc: Leo Yan, James Clark, linux-kernel, linux-perf-users On 2/18/23 04:02, Rob Herring wrote: > Arm SPEv1.2 adds another 64-bits of event filtering control. As the > existing perf_event_attr::configN fields are all used up for SPE PMU, an > additional field is needed. Add a new 'config3' field. > > Signed-off-by: Rob Herring <robh@kernel.org> > --- > This matches commit 09519ec3b19e ("perf: Add perf_event_attr::config3") > for the kernel queued in linux-next. > --- > tools/include/uapi/linux/perf_event.h | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/tools/include/uapi/linux/perf_event.h b/tools/include/uapi/linux/perf_event.h > index ea6defacc1a7..a38814ce9485 100644 > --- a/tools/include/uapi/linux/perf_event.h > +++ b/tools/include/uapi/linux/perf_event.h > @@ -365,6 +365,7 @@ enum perf_event_read_format { > #define PERF_ATTR_SIZE_VER5 112 /* add: aux_watermark */ > #define PERF_ATTR_SIZE_VER6 120 /* add: aux_sample_size */ > #define PERF_ATTR_SIZE_VER7 128 /* add: sig_data */ > +#define PERF_ATTR_SIZE_VER8 136 /* add: config3 */ > > /* > * Hardware event_id to monitor via a performance monitoring event: > @@ -506,6 +507,8 @@ struct perf_event_attr { > * truncated accordingly on 32 bit architectures. > */ > __u64 sig_data; > + > + __u64 config3; /* extension of config2 */ Patch looks fine to me. Reviewed-by: Kajol Jain <kjain@linux.ibm.com> Thanks, Kajol Jain > }; > > /* > ^ permalink raw reply [flat|nested] 7+ messages in thread
* [PATCH v5 2/2] perf: Add support for perf_event_attr::config3 2023-02-17 22:32 [PATCH v5 0/2] perf tool: 'config3' attribute support Rob Herring 2023-02-17 22:32 ` [PATCH v5 1/2] perf tools: Sync perf_event_attr::config3 addition Rob Herring @ 2023-02-17 22:32 ` Rob Herring 1 sibling, 0 replies; 7+ messages in thread From: Rob Herring @ 2023-02-17 22:32 UTC (permalink / raw) To: Peter Zijlstra, Ingo Molnar, Arnaldo Carvalho de Melo, Mark Rutland, Alexander Shishkin, Jiri Olsa, Namhyung Kim Cc: Leo Yan, James Clark, linux-kernel, linux-perf-users perf_event_attr has gained a new field, config3, so add support for it extending the existing configN support. Signed-off-by: Rob Herring <robh@kernel.org> --- v5: - Rebase on v6.2-rc1 v4: - Add config3 to event parsing tests --- tools/perf/tests/parse-events.c | 13 ++++++++++++- tools/perf/util/parse-events.c | 6 ++++++ tools/perf/util/parse-events.h | 1 + tools/perf/util/parse-events.l | 1 + tools/perf/util/pmu.c | 3 +++ tools/perf/util/pmu.h | 1 + 6 files changed, 24 insertions(+), 1 deletion(-) diff --git a/tools/perf/tests/parse-events.c b/tools/perf/tests/parse-events.c index 459afdb256a1..ddd5bdfe5723 100644 --- a/tools/perf/tests/parse-events.c +++ b/tools/perf/tests/parse-events.c @@ -444,6 +444,7 @@ static int test__checkevent_pmu(struct evlist *evlist) TEST_ASSERT_VAL("wrong config", 10 == evsel->core.attr.config); TEST_ASSERT_VAL("wrong config1", 1 == evsel->core.attr.config1); TEST_ASSERT_VAL("wrong config2", 3 == evsel->core.attr.config2); + TEST_ASSERT_VAL("wrong config3", 0 == evsel->core.attr.config3); /* * The period value gets configured within evlist__config, * while this test executes only parse events method. @@ -464,6 +465,7 @@ static int test__checkevent_list(struct evlist *evlist) TEST_ASSERT_VAL("wrong config", 1 == evsel->core.attr.config); TEST_ASSERT_VAL("wrong config1", 0 == evsel->core.attr.config1); TEST_ASSERT_VAL("wrong config2", 0 == evsel->core.attr.config2); + TEST_ASSERT_VAL("wrong config3", 0 == evsel->core.attr.config3); TEST_ASSERT_VAL("wrong exclude_user", !evsel->core.attr.exclude_user); TEST_ASSERT_VAL("wrong exclude_kernel", !evsel->core.attr.exclude_kernel); TEST_ASSERT_VAL("wrong exclude_hv", !evsel->core.attr.exclude_hv); @@ -625,6 +627,15 @@ static int test__checkterms_simple(struct list_head *terms) TEST_ASSERT_VAL("wrong val", term->val.num == 3); TEST_ASSERT_VAL("wrong config", !strcmp(term->config, "config2")); + /* config3=4 */ + term = list_entry(term->list.next, struct parse_events_term, list); + TEST_ASSERT_VAL("wrong type term", + term->type_term == PARSE_EVENTS__TERM_TYPE_CONFIG3); + TEST_ASSERT_VAL("wrong type val", + term->type_val == PARSE_EVENTS__TERM_TYPE_NUM); + TEST_ASSERT_VAL("wrong val", term->val.num == 4); + TEST_ASSERT_VAL("wrong config", !strcmp(term->config, "config3")); + /* umask=1*/ term = list_entry(term->list.next, struct parse_events_term, list); TEST_ASSERT_VAL("wrong type term", @@ -1983,7 +1994,7 @@ struct terms_test { static const struct terms_test test__terms[] = { [0] = { - .str = "config=10,config1,config2=3,umask=1,read,r0xead", + .str = "config=10,config1,config2=3,config3=4,umask=1,read,r0xead", .check = test__checkterms_simple, }, }; diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 5973f46c2375..a2ae92736aac 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -944,6 +944,7 @@ static const char *config_term_names[__PARSE_EVENTS__TERM_TYPE_NR] = { [PARSE_EVENTS__TERM_TYPE_CONFIG] = "config", [PARSE_EVENTS__TERM_TYPE_CONFIG1] = "config1", [PARSE_EVENTS__TERM_TYPE_CONFIG2] = "config2", + [PARSE_EVENTS__TERM_TYPE_CONFIG3] = "config3", [PARSE_EVENTS__TERM_TYPE_NAME] = "name", [PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD] = "period", [PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ] = "freq", @@ -983,6 +984,7 @@ config_term_avail(int term_type, struct parse_events_error *err) case PARSE_EVENTS__TERM_TYPE_CONFIG: case PARSE_EVENTS__TERM_TYPE_CONFIG1: case PARSE_EVENTS__TERM_TYPE_CONFIG2: + case PARSE_EVENTS__TERM_TYPE_CONFIG3: case PARSE_EVENTS__TERM_TYPE_NAME: case PARSE_EVENTS__TERM_TYPE_METRIC_ID: case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD: @@ -1028,6 +1030,10 @@ do { \ CHECK_TYPE_VAL(NUM); attr->config2 = term->val.num; break; + case PARSE_EVENTS__TERM_TYPE_CONFIG3: + CHECK_TYPE_VAL(NUM); + attr->config3 = term->val.num; + break; case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD: CHECK_TYPE_VAL(NUM); break; diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h index 07df7bb7b042..34db4870a56b 100644 --- a/tools/perf/util/parse-events.h +++ b/tools/perf/util/parse-events.h @@ -60,6 +60,7 @@ enum { PARSE_EVENTS__TERM_TYPE_CONFIG, PARSE_EVENTS__TERM_TYPE_CONFIG1, PARSE_EVENTS__TERM_TYPE_CONFIG2, + PARSE_EVENTS__TERM_TYPE_CONFIG3, PARSE_EVENTS__TERM_TYPE_NAME, PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD, PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ, diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l index 3a9ce96c8bce..51fe0a9fb3de 100644 --- a/tools/perf/util/parse-events.l +++ b/tools/perf/util/parse-events.l @@ -285,6 +285,7 @@ modifier_bp [rwx]{1,3} config { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG); } config1 { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG1); } config2 { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG2); } +config3 { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG3); } name { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NAME); } period { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD); } freq { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ); } diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c index 03284059175f..2d9a0c35c6c3 100644 --- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -1278,6 +1278,9 @@ static int pmu_config_term(const char *pmu_name, case PERF_PMU_FORMAT_VALUE_CONFIG2: vp = &attr->config2; break; + case PERF_PMU_FORMAT_VALUE_CONFIG3: + vp = &attr->config3; + break; default: return -EINVAL; } diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h index 68e15c38ae71..2e6bd1bf304a 100644 --- a/tools/perf/util/pmu.h +++ b/tools/perf/util/pmu.h @@ -17,6 +17,7 @@ enum { PERF_PMU_FORMAT_VALUE_CONFIG, PERF_PMU_FORMAT_VALUE_CONFIG1, PERF_PMU_FORMAT_VALUE_CONFIG2, + PERF_PMU_FORMAT_VALUE_CONFIG3, PERF_PMU_FORMAT_VALUE_CONFIG_END, }; -- 2.39.1 ^ permalink raw reply related [flat|nested] 7+ messages in thread
end of thread, other threads:[~2023-03-21 12:44 UTC | newest] Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2023-02-17 22:32 [PATCH v5 0/2] perf tool: 'config3' attribute support Rob Herring 2023-02-17 22:32 ` [PATCH v5 1/2] perf tools: Sync perf_event_attr::config3 addition Rob Herring 2023-02-18 13:21 ` Arnaldo Carvalho de Melo 2023-03-20 18:21 ` Rob Herring 2023-03-21 12:43 ` Arnaldo Carvalho de Melo 2023-02-23 14:23 ` kajoljain 2023-02-17 22:32 ` [PATCH v5 2/2] perf: Add support for perf_event_attr::config3 Rob Herring
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