diff options
Diffstat (limited to 'arch/arm64/kernel/fpsimd.c')
| -rw-r--r-- | arch/arm64/kernel/fpsimd.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/arch/arm64/kernel/fpsimd.c b/arch/arm64/kernel/fpsimd.c index 91e44ac7150f..601b973f90ad 100644 --- a/arch/arm64/kernel/fpsimd.c +++ b/arch/arm64/kernel/fpsimd.c @@ -1174,7 +1174,7 @@ void sve_kernel_enable(const struct arm64_cpu_capabilities *__always_unused p) * Read the pseudo-ZCR used by cpufeatures to identify the supported SVE * vector length. * - * Use only if SVE is present. + * Use only if SVE is present and enabled. * This function clobbers the SVE vector length. */ u64 read_zcr_features(void) @@ -1183,7 +1183,6 @@ u64 read_zcr_features(void) * Set the maximum possible VL, and write zeroes to all other * bits to see if they stick. */ - sve_kernel_enable(NULL); write_sysreg_s(ZCR_ELx_LEN_MASK, SYS_ZCR_EL1); /* Return LEN value that would be written to get the maximum VL */ @@ -1337,13 +1336,11 @@ void fa64_kernel_enable(const struct arm64_cpu_capabilities *__always_unused p) * Read the pseudo-SMCR used by cpufeatures to identify the supported * vector length. * - * Use only if SME is present. + * Use only if SME is present and enabled. * This function clobbers the SME vector length. */ u64 read_smcr_features(void) { - sme_kernel_enable(NULL); - /* * Set the maximum possible VL. */ |