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arm64: Add HWCAP advertising FEAT_WFXT

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In order to allow userspace to enjoy WFET, add a new HWCAP that
advertises it when available.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20220419182755.601427-9-maz@kernel.org
This commit is contained in:
Marc Zyngier
2022-04-20 13:21:12 +01:00
parent bdcc2f2803
commit 69bb02ebc3
7 changed files with 12 additions and 0 deletions
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arch/arm64/include/asm/hwcap.h
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@@ -109,6 +109,7 @@
#define KERNEL_HWCAP_AFP __khwcap2_feature(AFP)
#define KERNEL_HWCAP_RPRES __khwcap2_feature(RPRES)
#define KERNEL_HWCAP_MTE3 __khwcap2_feature(MTE3)
#define KERNEL_HWCAP_WFXT __khwcap2_feature(WFXT)
/*
* This yields a mask that user programs can use to figure out what