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x86/crc: drop checks of CONFIG_AS_VPCLMULQDQ

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Now that the minimum binutils version supports VPCLMULQDQ (and the
minimum clang version does too), there is no need to check for assembler
support before compiling code that uses these instructions.

Link: https://lore.kernel.org/r/20250531211318.83677-1-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
This commit is contained in:
Eric Biggers
2025-05-31 14:13:18 -07:00
parent d0b3b7b22d
commit cece5689e1
2 changed files with 1 additions and 9 deletions
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7
arch/x86/lib/crc-pclmul-template.S
View File

@@ -561,7 +561,6 @@
RET
.endm
#ifdef CONFIG_AS_VPCLMULQDQ
#define DEFINE_CRC_PCLMUL_FUNCS(prefix, bits, lsb) \
SYM_FUNC_START(prefix##_pclmul_sse); \
_crc_pclmul n=bits, lsb_crc=lsb, vl=16, avx_level=0; \
@@ -574,9 +573,3 @@ SYM_FUNC_END(prefix##_vpclmul_avx2); \
SYM_FUNC_START(prefix##_vpclmul_avx512); \
_crc_pclmul n=bits, lsb_crc=lsb, vl=64, avx_level=512; \
SYM_FUNC_END(prefix##_vpclmul_avx512);
#else
#define DEFINE_CRC_PCLMUL_FUNCS(prefix, bits, lsb) \
SYM_FUNC_START(prefix##_pclmul_sse); \
_crc_pclmul n=bits, lsb_crc=lsb, vl=16, avx_level=0; \
SYM_FUNC_END(prefix##_pclmul_sse);
#endif // !CONFIG_AS_VPCLMULQDQ

3
arch/x86/lib/crc-pclmul-template.h
View File

@@ -27,8 +27,7 @@ DEFINE_STATIC_CALL(prefix##_pclmul, prefix##_pclmul_sse)
#define INIT_CRC_PCLMUL(prefix) \
do { \
if (IS_ENABLED(CONFIG_AS_VPCLMULQDQ) && \
boot_cpu_has(X86_FEATURE_VPCLMULQDQ) && \
if (boot_cpu_has(X86_FEATURE_VPCLMULQDQ) && \
boot_cpu_has(X86_FEATURE_AVX2) && \
cpu_has_xfeatures(XFEATURE_MASK_YMM, NULL)) { \
if (boot_cpu_has(X86_FEATURE_AVX512BW) && \