perf/x86/intel: Add ICL_FIXED_0_ADAPTIVE bit into INTEL_FIXED_BITS_MASK

Browse source

[ Upstream commit 2676dbf9f4 ]

ICL_FIXED_0_ADAPTIVE is missed to be added into INTEL_FIXED_BITS_MASK,
add it.

With help of this new INTEL_FIXED_BITS_MASK, intel_pmu_enable_fixed() can
be optimized. The old fixed counter control bits can be unconditionally
cleared with INTEL_FIXED_BITS_MASK and then set new control bits base on
new configuration.

Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Tested-by: Yi Lai <yi1.lai@intel.com>
Link: https://lore.kernel.org/r/20250820023032.17128-7-dapeng1.mi@linux.intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

This commit is contained in:

Dapeng Mi 2025-08-20 10:30:31 +08:00 • committed by Greg Kroah-Hartman

parent cc81ee4328

commit b5e8d61c3b

3 changed files with 9 additions and 9 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

10

arch/x86/events/intel/core.c

View file

6

arch/x86/include/asm/perf_event.h

View file

2

arch/x86/kvm/pmu.h

View file