linux-kernel - [tip:perf/urgent] x86/events/intel/ds: Add PERF_SAMPLE_PERIOD into PEBS_FREERUNNING

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Message-ID: <tip-11974914e8e6d44387b4b23fa6dbd40c94baeb8d@git.kernel.org>
Date:   Mon, 5 Feb 2018 13:36:52 -0800
From:   tip-bot for Jiri Olsa <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     jolsa@...nel.org, kan.liang@...el.com,
        linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...nel.org,
        tglx@...utronix.de, ak@...ux.intel.com,
        alexander.shishkin@...ux.intel.com, peterz@...radead.org,
        dsahern@...il.com, acme@...hat.com, eranian@...gle.com,
        namhyung@...nel.org
Subject: [tip:perf/urgent] x86/events/intel/ds: Add PERF_SAMPLE_PERIOD into
 PEBS_FREERUNNING_FLAGS

Commit-ID:  11974914e8e6d44387b4b23fa6dbd40c94baeb8d
Gitweb:     https://git.kernel.org/tip/11974914e8e6d44387b4b23fa6dbd40c94baeb8d
Author:     Jiri Olsa <jolsa@...nel.org>
AuthorDate: Thu, 1 Feb 2018 09:38:12 +0100
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Mon, 5 Feb 2018 13:48:44 -0300

x86/events/intel/ds: Add PERF_SAMPLE_PERIOD into PEBS_FREERUNNING_FLAGS

Stephane reported that we don't support period for enabling large PEBS
data, which there's no reason for. Adding PERF_SAMPLE_PERIOD into
freerunning flags.

Tested it with:

  # perf record -e cycles:P -c 100 --no-timestamp -C 0 --period

Reported-by: Stephane Eranian <eranian@...gle.com>
Signed-off-by: Jiri Olsa <jolsa@...nel.org>
Tested-by: Kan Liang <kan.liang@...el.com>
Tested-by: Stephane Eranian <eranian@...gle.com>
Cc: Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Cc: Andi Kleen <ak@...ux.intel.com>
Cc: David Ahern <dsahern@...il.com>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Link: http://lkml.kernel.org/r/20180201083812.11359-4-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 arch/x86/events/perf_event.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/x86/events/perf_event.h b/arch/x86/events/perf_event.h
index 8e4ea143..78f91ec 100644
--- a/arch/x86/events/perf_event.h
+++ b/arch/x86/events/perf_event.h
@@ -93,7 +93,8 @@ struct amd_nb {
 	PERF_SAMPLE_ID | PERF_SAMPLE_CPU | PERF_SAMPLE_STREAM_ID | \
 	PERF_SAMPLE_DATA_SRC | PERF_SAMPLE_IDENTIFIER | \
 	PERF_SAMPLE_TRANSACTION | PERF_SAMPLE_PHYS_ADDR | \
-	PERF_SAMPLE_REGS_INTR | PERF_SAMPLE_REGS_USER)
+	PERF_SAMPLE_REGS_INTR | PERF_SAMPLE_REGS_USER | \
+	PERF_SAMPLE_PERIOD)
 
 #define PEBS_REGS \
 	(PERF_REG_X86_AX | \