| #include "ggml-backend-impl.h" |
|
|
| #if defined(__aarch64__) |
|
|
| #if defined(__linux__) |
| #include <sys/auxv.h> |
| #elif defined(__APPLE__) |
| #include <sys/sysctl.h> |
| #endif |
|
|
| #if !defined(HWCAP2_SVE2) |
| #define HWCAP2_SVE2 (1 << 1) |
| #endif |
|
|
| #if !defined(HWCAP2_I8MM) |
| #define HWCAP2_I8MM (1 << 13) |
| #endif |
|
|
| #if !defined(HWCAP2_SME) |
| #define HWCAP2_SME (1 << 23) |
| #endif |
|
|
| struct aarch64_features { |
| |
| bool has_dotprod = false; |
| bool has_fp16_va = false; |
| bool has_sve = false; |
| bool has_sve2 = false; |
| bool has_i8mm = false; |
| bool has_sme = false; |
|
|
| aarch64_features() { |
| #if defined(__linux__) |
| uint32_t hwcap = getauxval(AT_HWCAP); |
| uint32_t hwcap2 = getauxval(AT_HWCAP2); |
|
|
| has_dotprod = !!(hwcap & HWCAP_ASIMDDP); |
| has_fp16_va = !!(hwcap & HWCAP_FPHP); |
| has_sve = !!(hwcap & HWCAP_SVE); |
| has_sve2 = !!(hwcap2 & HWCAP2_SVE2); |
| has_i8mm = !!(hwcap2 & HWCAP2_I8MM); |
| has_sme = !!(hwcap2 & HWCAP2_SME); |
| #elif defined(__APPLE__) |
| int oldp = 0; |
| size_t size = sizeof(oldp); |
|
|
| if (sysctlbyname("hw.optional.arm.FEAT_DotProd", &oldp, &size, NULL, 0) == 0) { |
| has_dotprod = static_cast<bool>(oldp); |
| } |
|
|
| if (sysctlbyname("hw.optional.arm.FEAT_I8MM", &oldp, &size, NULL, 0) == 0) { |
| has_i8mm = static_cast<bool>(oldp); |
| } |
|
|
| if (sysctlbyname("hw.optional.arm.FEAT_SME", &oldp, &size, NULL, 0) == 0) { |
| has_sme = static_cast<bool>(oldp); |
| } |
|
|
| |
| #endif |
| } |
| }; |
|
|
| static int ggml_backend_cpu_aarch64_score() { |
| int score = 1; |
| aarch64_features af; |
|
|
| #ifdef GGML_USE_DOTPROD |
| if (!af.has_dotprod) { return 0; } |
| score += 1<<1; |
| #endif |
| #ifdef GGML_USE_FP16_VECTOR_ARITHMETIC |
| if (!af.has_fp16_va) { return 0; } |
| score += 1<<2; |
| #endif |
| #ifdef GGML_USE_SVE |
| if (!af.has_sve) { return 0; } |
| score += 1<<3; |
| #endif |
| #ifdef GGML_USE_MATMUL_INT8 |
| if (!af.has_i8mm) { return 0; } |
| score += 1<<4; |
| #endif |
| #ifdef GGML_USE_SVE2 |
| if (!af.has_sve2) { return 0; } |
| score += 1<<5; |
| #endif |
| #ifdef GGML_USE_SME |
| if (!af.has_sme) { return 0; } |
| score += 1<<6; |
| #endif |
|
|
| return score; |
| } |
|
|
| GGML_BACKEND_DL_SCORE_IMPL(ggml_backend_cpu_aarch64_score) |
|
|
| # endif |
|
|
