From: Dapeng Mi <dapeng1.mi@linux.intel.com>
To: Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Namhyung Kim <namhyung@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
Ian Rogers <irogers@google.com>,
Adrian Hunter <adrian.hunter@intel.com>,
Jiri Olsa <jolsa@kernel.org>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Andi Kleen <ak@linux.intel.com>,
Eranian Stephane <eranian@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
broonie@kernel.org, Ravi Bangoria <ravi.bangoria@amd.com>,
linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
Zide Chen <zide.chen@intel.com>,
Falcon Thomas <thomas.falcon@intel.com>,
Dapeng Mi <dapeng1.mi@intel.com>,
Xudong Hao <xudong.hao@intel.com>,
Dapeng Mi <dapeng1.mi@linux.intel.com>
Subject: [Patch v6 02/22] perf/x86/intel: Enable large PEBS sampling for XMMs
Date: Mon, 9 Feb 2026 15:20:27 +0800 [thread overview]
Message-ID: <20260209072047.2180332-3-dapeng1.mi@linux.intel.com> (raw)
In-Reply-To: <20260209072047.2180332-1-dapeng1.mi@linux.intel.com>
Modern PEBS hardware supports directly sampling XMM registers, then
large PEBS can be enabled for XMM registers just like other GPRs.
Reported-by: Xudong Hao <xudong.hao@intel.com>
Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
---
V6: new patch.
arch/x86/events/intel/core.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
index 546ebc7e1624..5ed26b83c61d 100644
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -4425,7 +4425,8 @@ static unsigned long intel_pmu_large_pebs_flags(struct perf_event *event)
flags &= ~PERF_SAMPLE_REGS_USER;
if (event->attr.sample_regs_user & ~PEBS_GP_REGS)
flags &= ~PERF_SAMPLE_REGS_USER;
- if (event->attr.sample_regs_intr & ~PEBS_GP_REGS)
+ if (event->attr.sample_regs_intr &
+ ~(PEBS_GP_REGS | PERF_REG_EXTENDED_MASK))
flags &= ~PERF_SAMPLE_REGS_INTR;
return flags;
}
--
2.34.1
next prev parent reply other threads:[~2026-02-09 7:25 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-09 7:20 [Patch v6 00/22] Support SIMD/eGPRs/SSP registers sampling for perf Dapeng Mi
2026-02-09 7:20 ` [Patch v6 01/22] perf/x86/intel: Restrict PEBS_ENABLE writes to PEBS-capable counters Dapeng Mi
2026-02-10 15:36 ` Peter Zijlstra
2026-02-11 5:47 ` Mi, Dapeng
2026-02-09 7:20 ` Dapeng Mi [this message]
2026-02-09 7:20 ` [Patch v6 03/22] perf/x86/intel: Convert x86_perf_regs to per-cpu variables Dapeng Mi
2026-02-09 7:20 ` [Patch v6 04/22] perf: Eliminate duplicate arch-specific functions definations Dapeng Mi
2026-02-09 7:20 ` [Patch v6 05/22] perf/x86: Use x86_perf_regs in the x86 nmi handler Dapeng Mi
2026-02-10 18:40 ` Peter Zijlstra
2026-02-11 6:26 ` Mi, Dapeng
2026-02-09 7:20 ` [Patch v6 06/22] perf/x86: Introduce x86-specific x86_pmu_setup_regs_data() Dapeng Mi
2026-02-09 7:20 ` [Patch v6 07/22] x86/fpu/xstate: Add xsaves_nmi() helper Dapeng Mi
2026-02-09 7:20 ` [Patch v6 08/22] x86/fpu: Ensure TIF_NEED_FPU_LOAD is set after saving FPU state Dapeng Mi
2026-02-11 19:39 ` Chang S. Bae
2026-02-11 19:55 ` Dave Hansen
2026-02-24 6:50 ` Mi, Dapeng
2026-02-25 13:02 ` Peter Zijlstra
2026-02-24 5:35 ` Mi, Dapeng
2026-02-24 19:13 ` Chang S. Bae
2026-02-25 0:35 ` Mi, Dapeng
2026-02-09 7:20 ` [Patch v6 09/22] perf: Move and rename has_extended_regs() for ARCH-specific use Dapeng Mi
2026-02-09 7:20 ` [Patch v6 10/22] perf/x86: Enable XMM Register Sampling for Non-PEBS Events Dapeng Mi
2026-02-15 23:58 ` Chang S. Bae
2026-02-24 7:11 ` Mi, Dapeng
2026-02-24 19:13 ` Chang S. Bae
2026-02-25 0:55 ` Mi, Dapeng
2026-02-25 1:11 ` Chang S. Bae
2026-02-25 1:36 ` Mi, Dapeng
2026-02-25 3:14 ` Chang S. Bae
2026-02-25 6:13 ` Mi, Dapeng
2026-02-09 7:20 ` [Patch v6 11/22] perf/x86: Enable XMM register sampling for REGS_USER case Dapeng Mi
2026-02-09 7:20 ` [Patch v6 12/22] perf: Add sampling support for SIMD registers Dapeng Mi
2026-02-10 20:04 ` Peter Zijlstra
2026-02-11 6:56 ` Mi, Dapeng
2026-02-09 7:20 ` [Patch v6 13/22] perf/x86: Enable XMM sampling using sample_simd_vec_reg_* fields Dapeng Mi
2026-02-09 7:20 ` [Patch v6 14/22] perf/x86: Enable YMM " Dapeng Mi
2026-02-09 7:20 ` [Patch v6 15/22] perf/x86: Enable ZMM " Dapeng Mi
2026-02-09 7:20 ` [Patch v6 16/22] perf/x86: Enable OPMASK sampling using sample_simd_pred_reg_* fields Dapeng Mi
2026-02-09 7:20 ` [Patch v6 17/22] perf: Enhance perf_reg_validate() with simd_enabled argument Dapeng Mi
2026-02-09 7:20 ` [Patch v6 18/22] perf/x86: Enable eGPRs sampling using sample_regs_* fields Dapeng Mi
2026-02-09 7:20 ` [Patch v6 19/22] perf/x86: Enable SSP " Dapeng Mi
2026-02-09 7:20 ` [Patch v6 20/22] perf/x86/intel: Enable PERF_PMU_CAP_SIMD_REGS capability Dapeng Mi
2026-02-09 7:20 ` [Patch v6 21/22] perf/x86/intel: Enable arch-PEBS based SIMD/eGPRs/SSP sampling Dapeng Mi
2026-02-09 7:20 ` [Patch v6 22/22] perf/x86: Activate back-to-back NMI detection for arch-PEBS induced NMIs Dapeng Mi
2026-02-09 8:48 ` [Patch v6 00/22] Support SIMD/eGPRs/SSP registers sampling for perf Mi, Dapeng
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