diff --git a/core/sys/info/cpu_intel.odin b/core/sys/info/cpu_intel.odin index d6fa98507..f42369e81 100644 --- a/core/sys/info/cpu_intel.odin +++ b/core/sys/info/cpu_intel.odin @@ -28,6 +28,25 @@ CPU_Feature :: enum u64 { ssse3, // Supplemental streaming SIMD extension 3 sse41, // Streaming SIMD extension 4 and 4.1 sse42, // Streaming SIMD extension 4 and 4.2 + + avx512_4fmaps, // Fused Multiply Accumulation Packed Single precision + avx512_4vnniw, // Vector Neural Network Instructions Word variable precision + avx512_bf16, // Vector Neural Network Instructions supporting bfloat16 + avx512_bitalg, // Bit Algorithms + avx512_bw, // Byte and Word instructions + avx512_cd, // Conflict Detection instructions + avx512_dq, // Doubleword and Quadword instructions + avx512_er, // Exponential and Reciprocal instructions + avx512_f, // Foundation + avx512_fp16, // Vector 16-bit float instructions + avx512_ifma, // Integer Fused Multiply Add + avx512_pf, // Prefetch instructions + avx512_vbmi, // Vector Byte Manipulation Instructions + avx512_vbmi2, // Vector Byte Manipulation Instructions 2 + avx512_vl, // Vector Length extensions + avx512_vnni, // Vector Neural Network Instructions + avx512_vp2intersect, // Vector Pair Intersection to a Pair of Mask Registers + avx512_vpopcntdq, // Vector Population Count for Doubleword and Quadword } CPU_Features :: distinct bit_set[CPU_Feature; u64] @@ -82,9 +101,11 @@ init_cpu_features :: proc "c" () { // // See: crbug.com/375968 os_supports_avx := false + os_supports_avx512 := false if .os_xsave in set && is_set(26, ecx1) { eax, _ := xgetbv(0) os_supports_avx = is_set(1, eax) && is_set(2, eax) + os_supports_avx512 = is_set(5, eax) && is_set(6, eax) && is_set(7, eax) } if os_supports_avx { try_set(&set, .avx, 28, ecx1) @@ -94,11 +115,35 @@ init_cpu_features :: proc "c" () { return } - _, ebx7, _, _ := cpuid(7, 0) + _, ebx7, ecx7, edx7 := cpuid(7, 0) try_set(&set, .bmi1, 3, ebx7) if os_supports_avx { try_set(&set, .avx2, 5, ebx7) } + if os_supports_avx512 { + try_set(&set, .avx512_f, 16, ebx7) + try_set(&set, .avx512_dq, 17, ebx7) + try_set(&set, .avx512_ifma, 21, ebx7) + try_set(&set, .avx512_pf, 26, ebx7) + try_set(&set, .avx512_er, 27, ebx7) + try_set(&set, .avx512_cd, 28, ebx7) + try_set(&set, .avx512_bw, 30, ebx7) + try_set(&set, .avx512_vl, 31, ebx7) + + try_set(&set, .avx512_vbmi, 1, ecx7) + try_set(&set, .avx512_vbmi2, 6, ecx7) + try_set(&set, .avx512_vnni, 11, ecx7) + try_set(&set, .avx512_bitalg, 12, ecx7) + try_set(&set, .avx512_vpopcntdq, 14, ecx7) + + try_set(&set, .avx512_4vnniw, 2, edx7) + try_set(&set, .avx512_4fmaps, 3, edx7) + try_set(&set, .avx512_vp2intersect, 8, edx7) + try_set(&set, .avx512_fp16, 23, edx7) + + eax7_1, _, _, _ := cpuid(7, 1) + try_set(&set, .avx512_bf16, 5, eax7_1) + } try_set(&set, .bmi2, 8, ebx7) try_set(&set, .erms, 9, ebx7) try_set(&set, .rdseed, 18, ebx7)