perf/x86/amd/core: Refactor branch attributes

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AMD processors that are capable of recording branches support either Branch
Sampling (BRS) or Last Branch Record (LBR). In preparation for adding Last
Branch Record Extension Version 2 (LbrExtV2) support, reuse the "branches"
capability to advertise information about both BRS and LBR but make the
"branch-brs" event exclusive to Family 19h processors that support BRS.

Signed-off-by: Sandipan Das <sandipan.das@amd.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/ba4a4cde6db79b1c65c49834027bbdb8a915546b.1660211399.git.sandipan.das@amd.com

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Sandipan Das 2022-08-11 17:59:50 +05:30 • committed by Peter Zijlstra

parent b40d0156f5

commit 9603aa79e8

1 changed files with 19 additions and 6 deletions

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arch/x86/events/amd/core.c

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