x86/cpufeatures: Add X86_FEATURE_AMD_WORKLOAD_CLASS feature bit

Browse source

Add a new feature bit that indicates support for workload-based heuristic
feedback to OS for scheduling decisions.

When the bit set, threads are classified during runtime into enumerated
classes. The classes represent thread performance/power characteristics
that may benefit from special scheduling behaviors.

Signed-off-by: Perry Yuan <perry.yuan@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Gautham R. Shenoy <gautham.shenoy@amd.com>
Link: https://lore.kernel.org/r/20241028020251.8085-4-mario.limonciello@amd.com

...

This commit is contained in:

Perry Yuan 2024-10-27 21:02:41 -05:00 • committed by Borislav Petkov (AMD)

parent 3eef25ab0d

commit 0c487010cb

2 changed files with 2 additions and 0 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

1

arch/x86/include/asm/cpufeatures.h

View file

1

arch/x86/kernel/cpu/scattered.c

View file