]> git.ipfire.org Git - thirdparty/linux.git/commit
perf amd ibs: Make Fetch status bits dependent on PhyAddrValid for newer platforms
authorRavi Bangoria <ravi.bangoria@amd.com>
Fri, 8 May 2026 06:00:01 +0000 (06:00 +0000)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Sat, 23 May 2026 00:31:38 +0000 (21:31 -0300)
commitea0ce2e12ed5347ecefc7b7c2a01623b855d9ddb
tree6f2158a54ba8c1c264be32c94eb013cf3be4ada9
parentf04a8a7649f9b248f89971b7a440f5d158d57d46
perf amd ibs: Make Fetch status bits dependent on PhyAddrValid for newer platforms

On Zen6 and future platforms, IBS_FETCH_CTL status fields are valid only
if IBS_FETCH_CTL[IbsPhyAddrValid] is set. Same for IBS_FETCH_CTL_EXT.
Add these checks while decoding IBS MSRs.

Unfortunately, there is no CPUID bit to indicate the change. Fallback
to Family/Model check.

Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ananth Narayan <ananth.narayan@amd.com>
Cc: Dapeng Mi <dapeng1.mi@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Manali Shukla <manali.shukla@amd.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Santosh Shukla <santosh.shukla@amd.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/util/amd-sample-raw.c