x86/resctrl: Move alloc/mon static keys into helpers

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resctrl enables three static keys depending on the features it has enabled.
Another architecture's context switch code may look different, any static keys
that control it should be buried behind helpers.

Move the alloc/mon logic into arch-specific helpers as a preparatory step for
making the rdt_enable_key's status something the arch code decides.

This means other architectures don't have to mirror the static keys.

Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Shaopeng Tan <tan.shaopeng@fujitsu.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Reviewed-by: Babu Moger <babu.moger@amd.com>
Tested-by: Shaopeng Tan <tan.shaopeng@fujitsu.com>
Tested-by: Peter Newman <peternewman@google.com>
Tested-by: Babu Moger <babu.moger@amd.com>
Tested-by: Carl Worth <carl@os.amperecomputing.com> # arm64
Link: https://lore.kernel.org/r/20240213184438.16675-18-james.morse@arm.com
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>

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This commit is contained in:

James Morse 2024-02-13 18:44:31 +00:00 • committed by Borislav Petkov (AMD)

parent 13e5769deb

commit 5db6a4a75c

3 changed files with 24 additions and 9 deletions

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20

arch/x86/include/asm/resctrl.h

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5

arch/x86/kernel/cpu/resctrl/internal.h

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8

arch/x86/kernel/cpu/resctrl/rdtgroup.c

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