From: Kajol Jain <kjain@linux•ibm.com>
To: mpe@ellerman•id.au
Cc: atrajeev@linux•vnet.ibm.com, rnsastry@linux•ibm.com,
kjain@linux•ibm.com, maddy@linux•vnet.ibm.com,
Madhavan Srinivasan <maddy@linux•ibm.com>,
linuxppc-dev@lists•ozlabs.org
Subject: [PATCH 05/20] selftest/powerpc/pmu: Add event_init_sampling function
Date: Thu, 27 Jan 2022 12:49:57 +0530 [thread overview]
Message-ID: <20220127072012.662451-6-kjain@linux.ibm.com> (raw)
In-Reply-To: <20220127072012.662451-1-kjain@linux.ibm.com>
From: Madhavan Srinivasan <maddy@linux•ibm.com>
Extended event_init_opts() to include initialization
of sampling testcases. Patch adds an event_init_sampling()
wrapper to initialize event attribute fields for sampling
events. This includes initializing sample period, sample type
and event type.
Signed-off-by: Madhavan Srinivasan <maddy@linux•ibm.com>
---
tools/testing/selftests/powerpc/pmu/event.c | 18 +++++++++++++++++-
tools/testing/selftests/powerpc/pmu/event.h | 1 +
2 files changed, 18 insertions(+), 1 deletion(-)
diff --git a/tools/testing/selftests/powerpc/pmu/event.c b/tools/testing/selftests/powerpc/pmu/event.c
index 48e3a413b15d..cbba74c1170f 100644
--- a/tools/testing/selftests/powerpc/pmu/event.c
+++ b/tools/testing/selftests/powerpc/pmu/event.c
@@ -20,7 +20,8 @@ int perf_event_open(struct perf_event_attr *attr, pid_t pid, int cpu,
group_fd, flags);
}
-void event_init_opts(struct event *e, u64 config, int type, char *name)
+static void __event_init_opts(struct event *e, u64 config,
+ int type, char *name, int sampling)
{
memset(e, 0, sizeof(*e));
@@ -32,6 +33,16 @@ void event_init_opts(struct event *e, u64 config, int type, char *name)
/* This has to match the structure layout in the header */
e->attr.read_format = PERF_FORMAT_TOTAL_TIME_ENABLED | \
PERF_FORMAT_TOTAL_TIME_RUNNING;
+ if (sampling) {
+ e->attr.sample_period = 1000;
+ e->attr.sample_type = PERF_SAMPLE_REGS_INTR;
+ e->attr.disabled = 1;
+ }
+}
+
+void event_init_opts(struct event *e, u64 config, int type, char *name)
+{
+ __event_init_opts(e, config, type, name, 0);
}
void event_init_named(struct event *e, u64 config, char *name)
@@ -44,6 +55,11 @@ void event_init(struct event *e, u64 config)
event_init_opts(e, config, PERF_TYPE_RAW, "event");
}
+void event_init_sampling(struct event *e, u64 config)
+{
+ __event_init_opts(e, config, PERF_TYPE_RAW, "event", 1);
+}
+
#define PERF_CURRENT_PID 0
#define PERF_NO_PID -1
#define PERF_NO_CPU -1
diff --git a/tools/testing/selftests/powerpc/pmu/event.h b/tools/testing/selftests/powerpc/pmu/event.h
index 23d20340a160..51aad0b6d9ad 100644
--- a/tools/testing/selftests/powerpc/pmu/event.h
+++ b/tools/testing/selftests/powerpc/pmu/event.h
@@ -32,6 +32,7 @@ struct event {
void event_init(struct event *e, u64 config);
void event_init_named(struct event *e, u64 config, char *name);
void event_init_opts(struct event *e, u64 config, int type, char *name);
+void event_init_sampling(struct event *e, u64 config);
int event_open_with_options(struct event *e, pid_t pid, int cpu, int group_fd);
int event_open_with_group(struct event *e, int group_fd);
int event_open_with_pid(struct event *e, pid_t pid);
--
2.27.0
next prev parent reply other threads:[~2022-01-27 7:25 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-27 7:19 [PATCH 00/20] Add perf sampling tests as part of selftest Kajol Jain
2022-01-27 7:19 ` [PATCH 01/20] selftest/powerpc/pmu: Include mmap_buffer field as part of struct event Kajol Jain
2022-01-27 7:19 ` [PATCH 02/20] selftest/powerpc/pmu: Add support for perf sampling tests Kajol Jain
2022-01-27 7:19 ` [PATCH 03/20] selftest/powerpc/pmu: Add macros to parse event codes Kajol Jain
2022-01-27 7:19 ` [PATCH 04/20] selftest/powerpc/pmu: Add utility functions to post process the mmap buffer Kajol Jain
2022-01-27 7:19 ` Kajol Jain [this message]
2022-01-27 7:19 ` [PATCH 06/20] selftest/powerpc/pmu: Add macros to extract mmcr fields Kajol Jain
2022-01-27 7:19 ` [PATCH 07/20] selftest/powerpc/pmu: Add macro to extract mmcr0/mmcr1 fields Kajol Jain
2022-01-27 7:20 ` [PATCH 08/20] selftest/powerpc/pmu: Add macro to extract mmcr3 and mmcra fields Kajol Jain
2022-01-27 7:20 ` [PATCH 09/20] selftest/powerpc/pmu/: Add interface test for mmcr0 exception bits Kajol Jain
2022-01-27 7:20 ` [PATCH 10/20] selftest/powerpc/pmu/: Add interface test for mmcr0_cc56run field Kajol Jain
2022-01-27 7:20 ` [PATCH 11/20] selftest/powerpc/pmu/: Add interface test for mmcr0_pmccext bit Kajol Jain
2022-01-27 7:20 ` [PATCH 12/20] selftest/powerpc/pmu/: Add interface test for mmcr0_pmcjce field Kajol Jain
2022-01-27 7:20 ` [PATCH 13/20] selftest/powerpc/pmu/: Add interface test for mmcr0_fc56 field using pmc1 Kajol Jain
2022-01-27 7:20 ` [PATCH 14/20] selftest/powerpc/pmu/: Add interface test for mmcr0_pmc56 using pmc5 Kajol Jain
2022-01-27 7:20 ` [PATCH 15/20] selftest/powerpc/pmu/: Add interface test for mmcr1_comb field Kajol Jain
2022-01-27 7:20 ` [PATCH 16/20] selftest/powerpc/pmu/: Add selftest for mmcr1 pmcxsel/unit/cache fields Kajol Jain
2022-03-10 7:49 ` Christophe Leroy
2022-03-10 12:11 ` Michael Ellerman
2022-03-10 12:29 ` kajoljain
2022-01-27 7:20 ` [PATCH 17/20] selftest/powerpc/pmu/: Add interface test for mmcr2_l2l3 field Kajol Jain
2022-01-27 7:20 ` [PATCH 18/20] selftest/powerpc/pmu/: Add interface test for mmcr2_fcs_fch fields Kajol Jain
2022-01-27 7:20 ` [PATCH 19/20] selftest/powerpc/pmu/: Add interface test for mmcr3_src fields Kajol Jain
2022-01-27 7:20 ` [PATCH 20/20] selftest/powerpc/pmu: Add interface test for mmcra register fields Kajol Jain
2022-03-02 12:41 ` [PATCH 00/20] Add perf sampling tests as part of selftest Michael Ellerman
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