From: kan.liang@linux.intel.com
To: peterz@infradead.org, mingo@redhat.com, acme@kernel.org,
namhyung@kernel.org, irogers@google.com,
linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org
Cc: ak@linux.intel.com, eranian@google.com,
dapeng1.mi@linux.intel.com, Kan Liang <kan.liang@linux.intel.com>,
stable@vger.kernel.org
Subject: [PATCH V6 1/3] perf/x86/intel/ds: Add PEBS format 6
Date: Wed, 18 Dec 2024 07:16:41 -0800 [thread overview]
Message-ID: <20241218151643.1031659-1-kan.liang@linux.intel.com> (raw)
From: Kan Liang <kan.liang@linux.intel.com>
The only difference between 5 and 6 is the new counters snapshotting
group, without the following counters snapshotting enabling patches,
it's impossible to utilize the feature in a PEBS record. It's safe to
share the same code path with format 5.
Add format 6, so the end user can at least utilize the legacy PEBS
features.
Fixes: a932aa0e868f ("perf/x86: Add Lunar Lake and Arrow Lake support")
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Cc: stable@vger.kernel.org
---
No changes since V5
arch/x86/events/intel/ds.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/events/intel/ds.c b/arch/x86/events/intel/ds.c
index 8dcf90f6fb59..ba74e1198328 100644
--- a/arch/x86/events/intel/ds.c
+++ b/arch/x86/events/intel/ds.c
@@ -2551,6 +2551,7 @@ void __init intel_ds_init(void)
x86_pmu.large_pebs_flags |= PERF_SAMPLE_TIME;
break;
+ case 6:
case 5:
x86_pmu.pebs_ept = 1;
fallthrough;
--
2.38.1
next reply other threads:[~2024-12-18 15:16 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-18 15:16 kan.liang [this message]
2024-12-18 15:16 ` [PATCH V6 2/3] perf: Extend perf_output_read kan.liang
2024-12-19 22:21 ` Peter Zijlstra
2024-12-20 0:42 ` Liang, Kan
2024-12-18 15:16 ` [PATCH V6 3/3] perf/x86/intel: Support PEBS counters snapshotting kan.liang
2024-12-18 16:32 ` Peter Zijlstra
2024-12-18 16:55 ` Liang, Kan
2024-12-18 17:01 ` Peter Zijlstra
2024-12-20 14:22 ` Peter Zijlstra
2025-01-03 16:15 ` Liang, Kan
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20241218151643.1031659-1-kan.liang@linux.intel.com \
--to=kan.liang@linux.intel.com \
--cc=acme@kernel.org \
--cc=ak@linux.intel.com \
--cc=dapeng1.mi@linux.intel.com \
--cc=eranian@google.com \
--cc=irogers@google.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-perf-users@vger.kernel.org \
--cc=mingo@redhat.com \
--cc=namhyung@kernel.org \
--cc=peterz@infradead.org \
--cc=stable@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.