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From: Ravi Bangoria <ravi.bangoria@amd.com>
To: Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@redhat.com>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>,
	Arnaldo Carvalho de Melo <acme@kernel.org>,
	Namhyung Kim <namhyung@kernel.org>,
	Ian Rogers <irogers@google.com>,
	Dapeng Mi <dapeng1.mi@linux.intel.com>,
	James Clark <james.clark@linaro.org>,
	Sadasivan Shaiju <sadasivan.shaiju2@amd.com>, <x86@kernel.org>,
	<linux-perf-users@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>,
	Manali Shukla <manali.shukla@amd.com>,
	Santosh Shukla <santosh.shukla@amd.com>,
	Ananth Narayan <ananth.narayan@amd.com>,
	Sandipan Das <sandipan.das@amd.com>
Subject: [PATCH v2 0/5] perf/amd/ibs: Assorted fixes
Date: Mon, 16 Feb 2026 04:22:11 +0000	[thread overview]
Message-ID: <20260216042216.1440-1-ravi.bangoria@amd.com> (raw)

Address several issues in the AMD IBS perf code: interrupt accounting
for discarded samples, a Zen5-specific quirk, PhyAddrVal handling,
NMI-safety with perf_allow_kernel(), and a race between event add and
NMI.

Patches are prepared on tip/perf/core (7db06e329af3)

v1: https://lore.kernel.org/r/20260116033450.965-1-ravi.bangoria@amd.com
v1->v2:
  - Split fixes series from future enhancements
  - Add interrupt throttling for zero-rip erratum #1197
  - Avoid calling perf_allow_kernel() in NMI context (new patch)

Ravi Bangoria (5):
  perf/amd/ibs: Account interrupt for discarded samples
  perf/amd/ibs: Limit ldlat->l3missonly dependency to Zen5
  perf/amd/ibs: Preserve PhyAddrVal bit when clearing PhyAddr MSR
  perf/amd/ibs: Avoid calling perf_allow_kernel() from the IBS NMI
    handler
  perf/amd/ibs: Avoid race between event add and NMI

 arch/x86/events/amd/ibs.c          | 28 ++++++++++++++++++++++------
 arch/x86/events/perf_event_flags.h |  1 +
 2 files changed, 23 insertions(+), 6 deletions(-)

-- 
2.43.0


             reply	other threads:[~2026-02-16  4:22 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-02-16  4:22 Ravi Bangoria [this message]
2026-02-16  4:22 ` [PATCH v2 1/5] perf/amd/ibs: Account interrupt for discarded samples Ravi Bangoria
2026-02-23 12:25   ` Michael Petlan
2026-02-24  8:11     ` Ravi Bangoria
2026-02-26 13:06       ` Peter Zijlstra
2026-02-28 10:56   ` [tip: perf/core] " tip-bot2 for Ravi Bangoria
2026-02-16  4:22 ` [PATCH v2 2/5] perf/amd/ibs: Limit ldlat->l3missonly dependency to Zen5 Ravi Bangoria
2026-02-28 10:56   ` [tip: perf/core] " tip-bot2 for Ravi Bangoria
2026-02-16  4:22 ` [PATCH v2 3/5] perf/amd/ibs: Preserve PhyAddrVal bit when clearing PhyAddr MSR Ravi Bangoria
2026-02-28 10:56   ` [tip: perf/core] " tip-bot2 for Ravi Bangoria
2026-02-16  4:22 ` [PATCH v2 4/5] perf/amd/ibs: Avoid calling perf_allow_kernel() from the IBS NMI handler Ravi Bangoria
2026-02-28 10:56   ` [tip: perf/core] " tip-bot2 for Ravi Bangoria
2026-03-06 21:13   ` [PATCH v2 4/5] " Michael Petlan
2026-03-09  9:07   ` Michael Petlan
2026-03-09 11:40     ` Ravi Bangoria
2026-03-09 19:06       ` Michael Petlan
2026-03-10 16:46         ` Ravi Bangoria
2026-02-16  4:22 ` [PATCH v2 5/5] perf/amd/ibs: Avoid race between event add and NMI Ravi Bangoria
2026-02-28 10:56   ` [tip: perf/core] " tip-bot2 for Ravi Bangoria
2026-02-18  5:51 ` [PATCH v2 0/5] perf/amd/ibs: Assorted fixes Namhyung Kim

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