diff options
| author | Mark Brown <broonie@kernel.org> | 2023-01-16 17:04:43 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2023-01-20 13:23:06 +0100 |
| commit | d4913eee152d3ffaf9a1e70073bc15e773625685 (patch) | |
| tree | 102888dc7da934eaa3a3ef32a2e3a8b02a038a51 /arch/arm64/include/asm/fpsimd.h | |
| parent | arm64/sme: Enable host kernel to access ZT0 (diff) | |
| download | linux-d4913eee152d3ffaf9a1e70073bc15e773625685.tar.xz linux-d4913eee152d3ffaf9a1e70073bc15e773625685.zip | |
arm64/sme: Add basic enumeration for SME2
Add basic feature detection for SME2, detecting that the feature is present
and disabling traps for ZT0.
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20221208-arm64-sme2-v4-8-f2fa0aef982f@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/include/asm/fpsimd.h')
| -rw-r--r-- | arch/arm64/include/asm/fpsimd.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/fpsimd.h b/arch/arm64/include/asm/fpsimd.h index 2d3fa80cd95d..2a66e3b94553 100644 --- a/arch/arm64/include/asm/fpsimd.h +++ b/arch/arm64/include/asm/fpsimd.h @@ -118,6 +118,7 @@ extern void za_load_state(void const *state); struct arm64_cpu_capabilities; extern void sve_kernel_enable(const struct arm64_cpu_capabilities *__unused); extern void sme_kernel_enable(const struct arm64_cpu_capabilities *__unused); +extern void sme2_kernel_enable(const struct arm64_cpu_capabilities *__unused); extern void fa64_kernel_enable(const struct arm64_cpu_capabilities *__unused); extern u64 read_zcr_features(void); |