linux-kernel - [PATCH v1 0/3] arm64: Support Cortex-X4 CPU for Perf Arm SPE

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Message-Id: <20230717054327.79815-1-leo.yan@linaro.org>
Date:   Mon, 17 Jul 2023 13:43:24 +0800
From:   Leo Yan <leo.yan@...aro.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        John Garry <john.g.garry@...cle.com>,
        James Clark <james.clark@....com>,
        Mike Leach <mike.leach@...aro.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Ian Rogers <irogers@...gle.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        D Scott Phillips <scott@...amperecomputing.com>,
        Marc Zyngier <maz@...nel.org>,
        Anshuman Khandual <anshuman.khandual@....com>,
        German Gomez <german.gomez@....com>,
        Ali Saidi <alisaidi@...zon.com>,
        Jing Zhang <renyu.zj@...ux.alibaba.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-perf-users@...r.kernel.org, fissure2010@...il.com
Cc:     Leo Yan <leo.yan@...aro.org>
Subject: [PATCH v1 0/3] arm64: Support Cortex-X4 CPU for Perf Arm SPE

This series support Cortex-X4 CPU in Perf Arm SPE.

The Arm64 and tools both include the header cputype.h for CPU part and
MIDR definitions, to de-couple between the tools and the kernel, the
tools doesn't directly use the kernel's header, alternatively, the tools
maintain a copy and sync with kernel's header.

To keep the exact same content between kernel and tools' headers, this
series firstly adds Cortex-X4 CPU part and MIDR definitions in the
kernel header; then the second patch syncs the change into the tools'
header.  The first patch is to support the Cortex-X4 in perf Arm SPE
with the new CPU definitions.

I don't have Cortex-X4 machine in hand, so just verified with
compilation perf tool.


Leo Yan (3):
  arm64: Add Cortex-X4 CPU part definitions
  tools headers arm64: Sync Cortex-X4 CPU part definitions
  perf arm-spe: Support data source for Cortex-X4 CPU

 arch/arm64/include/asm/cputype.h       |  2 ++
 tools/arch/arm64/include/asm/cputype.h |  2 ++
 tools/perf/util/arm-spe.c              | 14 ++++++++------
 3 files changed, 12 insertions(+), 6 deletions(-)

-- 
2.34.1