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v3.15.1

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Jay D Dee
2020-11-09 13:19:05 -05:00
parent c85fb3842b
commit 4fa8fcea8b
18 changed files with 100 additions and 115 deletions
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25
sysinfos.c
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@@ -331,16 +331,20 @@ static inline void cpu_getmodelid(char *outbuf, size_t maxsz)
// Feature flags
// CPU_INFO ECX
#define XSAVE_Flag (1<<26)
#define OSXSAVE_Flag (1<<27)
#define AVX_Flag (1<<28)
#define SSE3_Flag 1
#define SSSE3_Flag (1<< 9)
#define XOP_Flag (1<<11)
#define FMA3_Flag (1<<12)
#define AES_Flag (1<<25)
#define SSE41_Flag (1<<19)
#define SSE42_Flag (1<<20)
#define AES_Flag (1<<25)
#define XSAVE_Flag (1<<26)
#define OSXSAVE_Flag (1<<27)
#define AVX_Flag (1<<28)
// CPU_INFO EDX
#define SSE_Flag (1<<25) // EDX
#define SSE_Flag (1<<25)
#define SSE2_Flag (1<<26)
// EXTENDED_FEATURES EBX
@@ -359,8 +363,8 @@ static inline void cpu_getmodelid(char *outbuf, size_t maxsz)
// Use this to detect presence of feature
#define AVX_mask (AVX_Flag|XSAVE_Flag|OSXSAVE_Flag)
#define FMA3_mask (FMA3_Flag|AVX_mask)
#define AVX512_mask (AVX512VL_Flag|AVX512BW_Flag|AVX512DQ_Flag|AVX512F_Flag)
#define FMA3_mask (FMA3_Flag|AVX_mask)
#define AVX512_mask (AVX512VL_Flag|AVX512BW_Flag|AVX512DQ_Flag|AVX512F_Flag)
static inline bool has_sha()
{
@@ -476,6 +480,15 @@ static inline bool has_avx512()
#endif
}
// AMD Zen3 added support for 256 bit VAES without requiring AVX512.
// The original Intel spec requires AVX512F to support 512 bit VAES and
// requires AVX512VL to support 256 bit VAES.
// cpuminer-opt only uses VAES512, simply testing the VAES bit is sufficient.
// However, proper detection of VAES512 and VAES256 requires more work:
// VAES512 = VAES && AVX512F (may not support VAES256)
// VAES256 = AVX512VL ? VAES : ( AVX && VAES ) (may not support VAES512)
// VAES = VAES && AVX512F && AVX512VL (supports both)
static inline bool has_vaes()
{
#ifdef __arm__