diff options
| author | Tim Rowley <[email protected]> | 2016-05-26 15:06:07 -0500 |
|---|---|---|
| committer | Tim Rowley <[email protected]> | 2016-11-10 15:03:21 -0600 |
| commit | b9578b683dd43c81fe8cd9562c2bef2e20a7ef98 (patch) | |
| tree | 66bdf526d336a7f7f8b121eaa60888b14c2d49fd /src/gallium/auxiliary | |
| parent | c8c46641af43edd106528ac0293db5aa02a2364e (diff) | |
gallium: detect avx512 cpu features
v3: fix check for xmm/ymm test
v2: style code, add avx512 to cpu dump
Reviewed-by: Roland Scheidegger <[email protected]>
Diffstat (limited to 'src/gallium/auxiliary')
| -rw-r--r-- | src/gallium/auxiliary/util/u_cpu_detect.c | 26 | ||||
| -rw-r--r-- | src/gallium/auxiliary/util/u_cpu_detect.h | 10 |
2 files changed, 36 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/u_cpu_detect.c b/src/gallium/auxiliary/util/u_cpu_detect.c index 3a51ab95cf0..845fc6b34d5 100644 --- a/src/gallium/auxiliary/util/u_cpu_detect.c +++ b/src/gallium/auxiliary/util/u_cpu_detect.c @@ -388,6 +388,23 @@ util_cpu_detect(void) util_cpu_caps.has_avx2 = (regs7[1] >> 5) & 1; } + // check for avx512 + if (((regs2[2] >> 27) & 1) && // OSXSAVE + (xgetbv() & (0x7 << 5)) && // OPMASK: upper-256 enabled by OS + ((xgetbv() & 6) == 6)) { // XMM/YMM enabled by OS + uint32_t regs3[4]; + cpuid(0x00000007, regs3); + util_cpu_caps.has_avx512f = (regs3[1] >> 16) & 1; + util_cpu_caps.has_avx512dq = (regs3[1] >> 17) & 1; + util_cpu_caps.has_avx512ifma = (regs3[1] >> 21) & 1; + util_cpu_caps.has_avx512pf = (regs3[1] >> 26) & 1; + util_cpu_caps.has_avx512er = (regs3[1] >> 27) & 1; + util_cpu_caps.has_avx512cd = (regs3[1] >> 28) & 1; + util_cpu_caps.has_avx512bw = (regs3[1] >> 30) & 1; + util_cpu_caps.has_avx512vl = (regs3[1] >> 31) & 1; + util_cpu_caps.has_avx512vbmi = (regs3[2] >> 1) & 1; + } + if (regs[1] == 0x756e6547 && regs[2] == 0x6c65746e && regs[3] == 0x49656e69) { /* GenuineIntel */ util_cpu_caps.has_intel = 1; @@ -455,6 +472,15 @@ util_cpu_detect(void) debug_printf("util_cpu_caps.has_xop = %u\n", util_cpu_caps.has_xop); debug_printf("util_cpu_caps.has_altivec = %u\n", util_cpu_caps.has_altivec); debug_printf("util_cpu_caps.has_daz = %u\n", util_cpu_caps.has_daz); + debug_printf("util_cpu_caps.has_avx512f = %u\n", util_cpu_caps.has_avx512f); + debug_printf("util_cpu_caps.has_avx512dq = %u\n", util_cpu_caps.has_avx512dq); + debug_printf("util_cpu_caps.has_avx512ifma = %u\n", util_cpu_caps.has_avx512ifma); + debug_printf("util_cpu_caps.has_avx512pf = %u\n", util_cpu_caps.has_avx512pf); + debug_printf("util_cpu_caps.has_avx512er = %u\n", util_cpu_caps.has_avx512er); + debug_printf("util_cpu_caps.has_avx512cd = %u\n", util_cpu_caps.has_avx512cd); + debug_printf("util_cpu_caps.has_avx512bw = %u\n", util_cpu_caps.has_avx512bw); + debug_printf("util_cpu_caps.has_avx512vl = %u\n", util_cpu_caps.has_avx512vl); + debug_printf("util_cpu_caps.has_avx512vbmi = %u\n", util_cpu_caps.has_avx512vbmi); } #endif diff --git a/src/gallium/auxiliary/util/u_cpu_detect.h b/src/gallium/auxiliary/util/u_cpu_detect.h index c873232becc..3bd7294f075 100644 --- a/src/gallium/auxiliary/util/u_cpu_detect.h +++ b/src/gallium/auxiliary/util/u_cpu_detect.h @@ -72,6 +72,16 @@ struct util_cpu_caps { unsigned has_xop:1; unsigned has_altivec:1; unsigned has_daz:1; + + unsigned has_avx512f:1; + unsigned has_avx512dq:1; + unsigned has_avx512ifma:1; + unsigned has_avx512pf:1; + unsigned has_avx512er:1; + unsigned has_avx512cd:1; + unsigned has_avx512bw:1; + unsigned has_avx512vl:1; + unsigned has_avx512vbmi:1; }; extern struct util_cpu_caps |