]> www.infradead.org Git - users/jedix/linux-maple.git/commit
perf/x86/intel: Parse CPUID archPerfmonExt leaves for non-hybrid CPUs
authorDapeng Mi <dapeng1.mi@linux.intel.com>
Tue, 15 Apr 2025 11:44:09 +0000 (11:44 +0000)
committerIngo Molnar <mingo@kernel.org>
Thu, 17 Apr 2025 12:21:24 +0000 (14:21 +0200)
commit25c623f41438fafc6f63c45e2e141d7bcff78299
tree03c436b51bd7448b4c7a3d5f8943a93b7fd27639
parent48d66c89dce1e3687174608a5f5c31d5961a9916
perf/x86/intel: Parse CPUID archPerfmonExt leaves for non-hybrid CPUs

CPUID archPerfmonExt (0x23) leaves are supported to enumerate CPU
level's PMU capabilities on non-hybrid processors as well.

This patch supports to parse archPerfmonExt leaves on non-hybrid
processors. Architectural PEBS leverages archPerfmonExt sub-leaves 0x4
and 0x5 to enumerate the PEBS capabilities as well. This patch is a
precursor of the subsequent arch-PEBS enabling patches.

Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lkml.kernel.org/r/20250415114428.341182-4-dapeng1.mi@linux.intel.com
arch/x86/events/intel/core.c