perf/x86/intel: Factor out intel_update_topdown_event()

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Similar to Ice Lake, Intel Sapphire Rapids server also supports the
topdown performance metrics feature. The difference is that Intel
Sapphire Rapids server extends the PERF_METRICS MSR to feature TMA
method level two metrics, which will introduce 8 metrics events. Current
icl_update_topdown_event() only check 4 level one metrics events.

Factor out intel_update_topdown_event() to facilitate the code sharing
between Ice Lake and Sapphire Rapids.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/1611873611-156687-3-git-send-email-kan.liang@linux.intel.com

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Kan Liang 2021-01-28 14:40:08 -08:00 • committed by Peter Zijlstra

parent 2a6c6b7d7a

commit 628d923a3c

1 changed files with 13 additions and 7 deletions

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arch/x86/events/intel/core.c

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