diff --git a/ggml/src/CMakeLists.txt b/ggml/src/CMakeLists.txt index 628db3fd65..a4499509ec 100644 --- a/ggml/src/CMakeLists.txt +++ b/ggml/src/CMakeLists.txt @@ -328,6 +328,14 @@ function(ggml_add_cpu_backend_variant tag_name) set(GGML_INTERNAL_${feat} OFF) endforeach() + foreach (feat ${ARGN}) + set(GGML_INTERNAL_${feat} ON) + endforeach() + elseif (GGML_SYSTEM_ARCH STREQUAL "riscv64") + foreach (feat RVV) + set(GGML_INTERNAL_${feat} OFF) + endforeach() + foreach (feat ${ARGN}) set(GGML_INTERNAL_${feat} ON) endforeach() @@ -402,6 +410,13 @@ if (GGML_CPU_ALL_VARIANTS) else() message(FATAL_ERROR "Unsupported s390x target OS: ${CMAKE_SYSTEM_NAME}") endif() + elseif (GGML_SYSTEM_ARCH STREQUAL "riscv64") + if (CMAKE_SYSTEM_NAME MATCHES "Linux") + ggml_add_cpu_backend_variant(riscv64_0) + ggml_add_cpu_backend_variant(riscv64_v RVV) + else() + message(FATAL_ERROR "Unsupported RISC-V target OS: ${CMAKE_SYSTEM_NAME}") + endif() else() message(FATAL_ERROR "GGML_CPU_ALL_VARIANTS not yet supported with ${GGML_SYSTEM_ARCH} on ${CMAKE_SYSTEM_NAME}") endif() diff --git a/ggml/src/ggml-cpu/CMakeLists.txt b/ggml/src/ggml-cpu/CMakeLists.txt index d0cab0bcb9..feb5617386 100644 --- a/ggml/src/ggml-cpu/CMakeLists.txt +++ b/ggml/src/ggml-cpu/CMakeLists.txt @@ -452,22 +452,35 @@ function(ggml_add_cpu_backend_variant_impl tag_name) ggml-cpu/spacemit/ime_kernels.h ) endif() - set(MARCH_STR "rv64gc") - if (GGML_RV_ZFH) - string(APPEND MARCH_STR "_zfh") - endif() - if (GGML_XTHEADVECTOR) - string(APPEND MARCH_STR "_xtheadvector") - elseif (GGML_RVV) - string(APPEND MARCH_STR "_v") - if (GGML_RV_ZVFH) - string(APPEND MARCH_STR "_zvfh") + if(NOT GGML_CPU_ALL_VARIANTS) + set(MARCH_STR "rv64gc") + if (GGML_RV_ZFH) + string(APPEND MARCH_STR "_zfh") endif() + if (GGML_XTHEADVECTOR) + string(APPEND MARCH_STR "_xtheadvector") + elseif (GGML_RVV) + string(APPEND MARCH_STR "_v") + if (GGML_RV_ZVFH) + string(APPEND MARCH_STR "_zvfh") + endif() + endif() + if (GGML_RV_ZICBOP) + string(APPEND MARCH_STR "_zicbop") + endif() + list(APPEND ARCH_FLAGS "-march=${MARCH_STR}" -mabi=lp64d) + else() + # Begin with the lowest baseline + set(ARCH_DEFINITIONS "") + + if (GGML_INTERNAL_RVV) + message(STATUS "RVV enabled") + list(APPEND ARCH_DEFINITIONS GGML_USE_RVV) + list(APPEND ARCH_FLAGS -march=rv64gc_v -mabi=lp64d) + endif() + + ggml_add_cpu_backend_features(${GGML_CPU_NAME} riscv ${ARCH_DEFINITIONS}) endif() - if (GGML_RV_ZICBOP) - string(APPEND MARCH_STR "_zicbop") - endif() - list(APPEND ARCH_FLAGS "-march=${MARCH_STR}" -mabi=lp64d) elseif (GGML_SYSTEM_ARCH STREQUAL "s390x") message(STATUS "s390x detected") list(APPEND GGML_CPU_SOURCES diff --git a/ggml/src/ggml-cpu/arch/riscv/cpu-feats.cpp b/ggml/src/ggml-cpu/arch/riscv/cpu-feats.cpp new file mode 100644 index 0000000000..b181898818 --- /dev/null +++ b/ggml/src/ggml-cpu/arch/riscv/cpu-feats.cpp @@ -0,0 +1,35 @@ +#include "ggml-backend-impl.h" + +#if defined(__riscv) && __riscv_xlen == 64 +#include + +//https://github.com/torvalds/linux/blob/master/arch/riscv/include/uapi/asm/hwcap.h#L24 +#ifndef COMPAT_HWCAP_ISA_V +#define COMPAT_HWCAP_ISA_V (1 << ('V' - 'A')) +#endif + +struct riscv64_features { + bool has_rvv = false; + + riscv64_features() { + uint32_t hwcap = getauxval(AT_HWCAP); + + has_rvv = !!(hwcap & COMPAT_HWCAP_ISA_V); + } +}; + +static int ggml_backend_cpu_riscv64_score() { + int score = 1; + riscv64_features rf; + +#ifdef GGML_USE_RVV + if (!rf.has_rvv) { return 0; } + score += 1 << 1; +#endif + + return score; +} + +GGML_BACKEND_DL_SCORE_IMPL(ggml_backend_cpu_riscv64_score) + +#endif // __riscv && __riscv_xlen == 64