perf amd ibs: Make Fetch status bits dependent on PhyAddrValid for newer platforms

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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>

...

This commit is contained in:

Ravi Bangoria 2026-05-08 06:00:01 +00:00 • committed by Arnaldo Carvalho de Melo

parent f04a8a7649

commit ea0ce2e12e

1 changed files with 40 additions and 2 deletions

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tools/perf/util/amd-sample-raw.c

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