ggml : move AMX to the CPU backend (#10570)

* ggml : move AMX to the CPU backend

---------

Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>

.clang-tidy

@@ -17,8 +17,10 @@ Checks: >
     -clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling,
     performance-*,
     portability-*,
+    -portability-simd-intrinsics,
     misc-*,
     -misc-const-correctness,
     -misc-non-private-member-variables-in-classes,
     -misc-no-recursion,
+    -misc-use-anonymous-namespace,
 FormatStyle: none

.github/workflows/build.yml

@@ -1121,6 +1121,11 @@ jobs:
         run: |
           & 'C:\Program Files\AMD\ROCm\*\bin\clang.exe' --version
 
+      - name: Install ccache
+        uses: hendrikmuhs/ccache-action@v1.2
+        with:
+          key: ${{ github.job }}
+
       - name: Build
         id: cmake_build
         run: |

Makefile

@@ -254,8 +254,8 @@ endif
 # keep standard at C11 and C++11
 MK_CPPFLAGS  = -Iggml/include -Iggml/src -Iinclude -Isrc -Icommon -DGGML_USE_CPU
 MK_CFLAGS    = -std=c11   -fPIC
-MK_CXXFLAGS  = -std=c++11 -fPIC
+MK_CXXFLAGS  = -std=c++17 -fPIC
-MK_NVCCFLAGS = -std=c++11
+MK_NVCCFLAGS = -std=c++17
 
 ifdef LLAMA_NO_CCACHE
 GGML_NO_CCACHE := 1
@@ -575,9 +575,12 @@ endif
 
 ifndef GGML_NO_AMX
 	MK_CPPFLAGS += -DGGML_USE_AMX
-	OBJ_GGML_EXT += ggml/src/ggml-amx/ggml-amx.o ggml/src/ggml-amx/mmq.o
+	OBJ_GGML_EXT += ggml/src/ggml-cpu/amx/amx.o ggml/src/ggml-cpu/amx/mmq.o
 endif
 
+# only necessary for the CPU backend files
+MK_CPPFLAGS += -Iggml/src/ggml-cpu
+
 ifdef GGML_RPC
 	MK_CPPFLAGS  += -DGGML_USE_RPC
 	OBJ_GGML_EXT += ggml/src/ggml-rpc.o

Package.swift

@@ -28,13 +28,16 @@ var cSettings: [CSetting] =  [
     .unsafeFlags(["-Wno-shorten-64-to-32", "-O3", "-DNDEBUG"]),
     .unsafeFlags(["-fno-objc-arc"]),
     .headerSearchPath("ggml/src"),
+    .headerSearchPath("ggml/src/ggml-cpu"),
     // NOTE: NEW_LAPACK will required iOS version 16.4+
     // We should consider add this in the future when we drop support for iOS 14
     // (ref: ref: https://developer.apple.com/documentation/accelerate/1513264-cblas_sgemm?language=objc)
     // .define("ACCELERATE_NEW_LAPACK"),
     // .define("ACCELERATE_LAPACK_ILP64")
+    .define("GGML_USE_CPU"),
 ]
 
+
 #if canImport(Darwin)
 sources.append("ggml/src/ggml-common.h")
 sources.append("ggml/src/ggml-metal/ggml-metal.m")
@@ -44,7 +47,6 @@ cSettings.append(
     contentsOf: [
         .define("GGML_USE_ACCELERATE"),
         .define("GGML_USE_METAL"),
-        .define("GGML_USE_CPU")
     ]
 )
 #endif

common/CMakeLists.txt

@@ -88,5 +88,5 @@ if (LLAMA_CURL)
 endif ()
 
 target_include_directories(${TARGET} PUBLIC .)
-target_compile_features   (${TARGET} PUBLIC cxx_std_11)
+target_compile_features   (${TARGET} PUBLIC cxx_std_17)
 target_link_libraries     (${TARGET} PRIVATE ${LLAMA_COMMON_EXTRA_LIBS} PUBLIC llama Threads::Threads)

common/common.cpp

@@ -652,7 +652,17 @@ bool fs_validate_filename(const std::string & filename) {
 
     std::u32string filename_utf32;
     try {
+#if defined(__clang__)
+        // disable C++17 deprecation warning for std::codecvt_utf8
+#    pragma clang diagnostic push
+#    pragma clang diagnostic ignored "-Wdeprecated-declarations"
+#endif
         std::wstring_convert<std::codecvt_utf8<char32_t>, char32_t> converter;
+
+#if defined(__clang__)
+#    pragma clang diagnostic pop
+#endif
+
         filename_utf32 = converter.from_bytes(filename);
 
         // If the reverse conversion mismatches, it means overlong UTF-8 sequences were used,

examples/batched-bench/CMakeLists.txt

@@ -2,4 +2,4 @@ set(TARGET llama-batched-bench)
 add_executable(${TARGET} batched-bench.cpp)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE common llama ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)

examples/batched/CMakeLists.txt

@@ -2,4 +2,4 @@ set(TARGET llama-batched)
 add_executable(${TARGET} batched.cpp)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE common llama ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)

examples/convert-llama2c-to-ggml/CMakeLists.txt

@@ -2,4 +2,4 @@ set(TARGET llama-convert-llama2c-to-ggml)
 add_executable(${TARGET} convert-llama2c-to-ggml.cpp)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE common llama ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)

examples/cvector-generator/CMakeLists.txt

@@ -2,4 +2,4 @@ set(TARGET llama-cvector-generator)
 add_executable(${TARGET} cvector-generator.cpp pca.hpp)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE common llama ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)

examples/embedding/CMakeLists.txt

@@ -2,4 +2,4 @@ set(TARGET llama-embedding)
 add_executable(${TARGET} embedding.cpp)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE common llama ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)

examples/eval-callback/CMakeLists.txt

@@ -2,7 +2,7 @@ set(TARGET llama-eval-callback)
 add_executable(${TARGET} eval-callback.cpp)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE common llama ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)
 
 set(TEST_TARGET test-eval-callback)
 add_test(NAME ${TEST_TARGET}

examples/export-lora/CMakeLists.txt

@@ -2,4 +2,4 @@ set(TARGET llama-export-lora)
 add_executable(${TARGET} export-lora.cpp)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE common llama ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)

examples/gbnf-validator/CMakeLists.txt

@@ -2,4 +2,4 @@ set(TARGET llama-gbnf-validator)
 add_executable(${TARGET} gbnf-validator.cpp)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE common llama ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)

examples/gen-docs/CMakeLists.txt

@@ -2,4 +2,4 @@ set(TARGET llama-gen-docs)
 add_executable(${TARGET} gen-docs.cpp)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE common llama ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)

examples/gguf-hash/CMakeLists.txt

@@ -19,4 +19,4 @@ add_library(sha256 OBJECT deps/sha256/sha256.c deps/sha256/sha256.h)
 target_link_libraries(${TARGET} PRIVATE sha256)
 
 target_link_libraries(${TARGET} PRIVATE ggml ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)

examples/gguf-split/CMakeLists.txt

@@ -2,4 +2,4 @@ set(TARGET llama-gguf-split)
 add_executable(${TARGET} gguf-split.cpp)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE common llama ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)

examples/gguf/CMakeLists.txt

@@ -2,4 +2,4 @@ set(TARGET llama-gguf)
 add_executable(${TARGET} gguf.cpp)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE ggml ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)

examples/gritlm/CMakeLists.txt

@@ -2,4 +2,4 @@ set(TARGET llama-gritlm)
 add_executable(${TARGET} gritlm.cpp)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE common llama ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)

examples/imatrix/CMakeLists.txt

@@ -2,4 +2,4 @@ set(TARGET llama-imatrix)
 add_executable(${TARGET} imatrix.cpp)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE common llama ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)

examples/infill/CMakeLists.txt

@@ -2,4 +2,4 @@ set(TARGET llama-infill)
 add_executable(${TARGET} infill.cpp)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE common llama ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)

examples/llama-bench/CMakeLists.txt

@@ -2,4 +2,4 @@ set(TARGET llama-bench)
 add_executable(${TARGET} llama-bench.cpp)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE common llama ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)

examples/llava/CMakeLists.txt

@@ -11,7 +11,7 @@ target_include_directories(llava PUBLIC .)
 target_include_directories(llava PUBLIC ../..)
 target_include_directories(llava PUBLIC ../../common)
 
-target_compile_features(llava PRIVATE cxx_std_11)
+target_compile_features(llava PRIVATE cxx_std_17)
 
 add_library(llava_static STATIC $<TARGET_OBJECTS:llava>)
 if (BUILD_SHARED_LIBS)
@@ -35,11 +35,11 @@ add_executable(${TARGET} llava-cli.cpp)
 set_target_properties(${TARGET} PROPERTIES OUTPUT_NAME llama-llava-cli)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE common llava ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)
 
 set(TARGET llama-minicpmv-cli)
 add_executable(${TARGET} minicpmv-cli.cpp)
 set_target_properties(${TARGET} PROPERTIES OUTPUT_NAME llama-minicpmv-cli)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE common llava ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)

examples/lookahead/CMakeLists.txt

@@ -2,4 +2,4 @@ set(TARGET llama-lookahead)
 add_executable(${TARGET} lookahead.cpp)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE common llama ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)

examples/lookup/CMakeLists.txt

@@ -2,22 +2,22 @@ set(TARGET llama-lookup)
 add_executable(${TARGET} lookup.cpp)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE common llama ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)
 
 set(TARGET llama-lookup-create)
 add_executable(${TARGET} lookup-create.cpp)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE common llama ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)
 
 set(TARGET llama-lookup-merge)
 add_executable(${TARGET} lookup-merge.cpp)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE common llama ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)
 
 set(TARGET llama-lookup-stats)
 add_executable(${TARGET} lookup-stats.cpp)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE common llama ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)

examples/main-cmake-pkg/CMakeLists.txt

@@ -29,4 +29,4 @@ add_executable(${TARGET} ${CMAKE_CURRENT_LIST_DIR}/../main/main.cpp)
 target_include_directories(${TARGET} PRIVATE ${_common_path})
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE common llama ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)

examples/main/CMakeLists.txt

@@ -2,4 +2,4 @@ set(TARGET llama-cli)
 add_executable(${TARGET} main.cpp)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE common llama ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)

examples/parallel/CMakeLists.txt

@@ -2,4 +2,4 @@ set(TARGET llama-parallel)
 add_executable(${TARGET} parallel.cpp)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE common llama ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)

examples/passkey/CMakeLists.txt

@@ -2,4 +2,4 @@ set(TARGET llama-passkey)
 add_executable(${TARGET} passkey.cpp)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE common llama ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)

examples/perplexity/CMakeLists.txt

@@ -2,4 +2,4 @@ set(TARGET llama-perplexity)
 add_executable(${TARGET} perplexity.cpp)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE common llama ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)

examples/quantize-stats/CMakeLists.txt

@@ -3,4 +3,4 @@ add_executable(${TARGET} quantize-stats.cpp)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE llama build_info ${CMAKE_THREAD_LIBS_INIT})
 target_include_directories(${TARGET} PRIVATE ../../common)
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)

examples/quantize/CMakeLists.txt

@@ -3,4 +3,4 @@ add_executable(${TARGET} quantize.cpp)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE common llama ${CMAKE_THREAD_LIBS_INIT})
 target_include_directories(${TARGET} PRIVATE ../../common)
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)

examples/retrieval/CMakeLists.txt

@@ -2,4 +2,4 @@ set(TARGET llama-retrieval)
 add_executable(${TARGET} retrieval.cpp)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE common llama ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)

examples/run/CMakeLists.txt

@@ -2,4 +2,4 @@ set(TARGET llama-run)
 add_executable(${TARGET} run.cpp)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE llama ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)

examples/save-load-state/CMakeLists.txt

@@ -2,4 +2,4 @@ set(TARGET llama-save-load-state)
 add_executable(${TARGET} save-load-state.cpp)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE common llama ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)

examples/server/CMakeLists.txt

@@ -50,4 +50,4 @@ if (WIN32)
     TARGET_LINK_LIBRARIES(${TARGET} PRIVATE ws2_32)
 endif()
 
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)

examples/simple-chat/CMakeLists.txt

@@ -2,4 +2,4 @@ set(TARGET llama-simple-chat)
 add_executable(${TARGET} simple-chat.cpp)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE llama ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)

examples/simple/CMakeLists.txt

@@ -2,4 +2,4 @@ set(TARGET llama-simple)
 add_executable(${TARGET} simple.cpp)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE llama ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)

examples/speculative-simple/CMakeLists.txt

@@ -2,4 +2,4 @@ set(TARGET llama-speculative-simple)
 add_executable(${TARGET} speculative-simple.cpp)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE common llama ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)

examples/speculative/CMakeLists.txt

@@ -2,4 +2,4 @@ set(TARGET llama-speculative)
 add_executable(${TARGET} speculative.cpp)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE common llama ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)

examples/tokenize/CMakeLists.txt

@@ -2,4 +2,4 @@ set(TARGET llama-tokenize)
 add_executable(${TARGET} tokenize.cpp)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE common llama ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)

ggml/CMakeLists.txt

@@ -161,7 +161,6 @@ set   (GGML_METAL_MACOSX_VERSION_MIN "" CACHE STRING
 set   (GGML_METAL_STD "" CACHE STRING       "ggml: metal standard version (-std flag)")
 option(GGML_OPENMP                          "ggml: use OpenMP"                                ON)
 option(GGML_RPC                             "ggml: use RPC"                                   OFF)
-option(GGML_AMX                             "ggml: use AMX"                                   OFF)
 option(GGML_SYCL                            "ggml: use SYCL"                                  OFF)
 option(GGML_SYCL_F16                        "ggml: use 16 bit floats for sycl calculations"   OFF)
 set   (GGML_SYCL_TARGET "INTEL" CACHE STRING

ggml/include/ggml-amx.h

@@ -1,25 +0,0 @@
-#pragma once
-
-#include "ggml.h"
-#include "ggml-backend.h"
-
-
-#ifdef  __cplusplus
-extern "C" {
-#endif
-
-// buffer_type API
-GGML_BACKEND_API ggml_backend_buffer_type_t ggml_backend_amx_buffer_type(void);
-
-GGML_BACKEND_API bool ggml_backend_is_amx(ggml_backend_t backend);
-
-// backend API
-GGML_BACKEND_API ggml_backend_t ggml_backend_amx_init(void);
-
-GGML_BACKEND_API void ggml_backend_amx_set_n_threads(ggml_backend_t backend_amx, int n_threads);
-
-GGML_BACKEND_API ggml_backend_reg_t ggml_backend_amx_reg(void);
-
-#ifdef  __cplusplus
-}
-#endif

ggml/src/CMakeLists.txt

@@ -261,21 +261,15 @@ function(ggml_add_backend backend)
     if (${backend_id})
         string(TOLOWER "ggml-${backend}" backend_target)
         add_subdirectory(${backend_target})
-        # check again in case the backend disabled itself
+        message(STATUS "Including ${backend} backend")
-        # note that this should NOT be the normal behavior, in case of errors the backend should fail the build
+        if (NOT GGML_BACKEND_DL)
-        # however, currently it is necessary for AMX, since it is enabled by default on llama.cpp
+            string(TOUPPER "GGML_USE_${backend}" backend_use)
-        if (${backend_id})
+            target_compile_definitions(ggml PUBLIC ${backend_use})
-            message(STATUS "Including ${backend} backend")
-            if (NOT GGML_BACKEND_DL)
-                string(TOUPPER "GGML_USE_${backend}" backend_use)
-                target_compile_definitions(ggml PUBLIC ${backend_use})
-            endif()
         endif()
     endif()
 endfunction()
 
 ggml_add_backend(CPU)
-ggml_add_backend(AMX)
 ggml_add_backend(BLAS)
 ggml_add_backend(CANN)
 ggml_add_backend(CUDA)
@@ -289,7 +283,7 @@ ggml_add_backend(Vulkan)
 
 foreach (target ggml-base ggml)
     target_include_directories(${target} PUBLIC    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/../include> $<INSTALL_INTERFACE:include>)
-    target_compile_features   (${target} PRIVATE c_std_11) # don't bump
+    target_compile_features   (${target} PRIVATE c_std_11 cxx_std_17) # don't bump
 endforeach()
 
 target_link_libraries(ggml-base PRIVATE Threads::Threads)

ggml/src/ggml-amx/CMakeLists.txt

@@ -1,105 +0,0 @@
-if (CMAKE_OSX_ARCHITECTURES STREQUAL "x86_64" OR CMAKE_GENERATOR_PLATFORM_LWR MATCHES "^(x86_64|i686|amd64|x64|win32)$" OR
-        (NOT CMAKE_OSX_ARCHITECTURES AND NOT CMAKE_GENERATOR_PLATFORM_LWR AND
-         CMAKE_SYSTEM_PROCESSOR MATCHES "^(x86_64|i686|AMD64)$") AND
-        CMAKE_COMPILER_IS_GNUCC AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 11.0)
-    message(STATUS "Using AMX")
-
-    file(GLOB   GGML_HEADERS_AMX "*.h")
-    list(APPEND GGML_HEADERS_AMX "../../include/ggml-amx.h")
-
-    file(GLOB   GGML_SOURCES_AMX "*.cpp")
-
-    ggml_add_backend_library(ggml-amx
-                             ${GGML_HEADERS_AMX}
-                             ${GGML_SOURCES_AMX}
-                            )
-
-    # this is duplicated from the CPU backend, since the AMX backend also depends on the architecture flags
-    # TODO: integrate AMX backend into the CPU backend
-    if (MSVC)
-        # instruction set detection for MSVC only
-        if (GGML_NATIVE)
-            # TODO: improve, should not reference files from the parent folder
-            include(../ggml-cpu/cmake/FindSIMD.cmake)
-        endif ()
-        if (GGML_AVX512)
-            list(APPEND ARCH_FLAGS /arch:AVX512)
-            # MSVC has no compile-time flags enabling specific
-            # AVX512 extensions, neither it defines the
-            # macros corresponding to the extensions.
-            # Do it manually.
-            if (GGML_AVX512_VBMI)
-                add_compile_definitions($<$<COMPILE_LANGUAGE:C>:__AVX512VBMI__>)
-                add_compile_definitions($<$<COMPILE_LANGUAGE:CXX>:__AVX512VBMI__>)
-            endif()
-            if (GGML_AVX512_VNNI)
-                add_compile_definitions($<$<COMPILE_LANGUAGE:C>:__AVX512VNNI__>)
-                add_compile_definitions($<$<COMPILE_LANGUAGE:CXX>:__AVX512VNNI__>)
-            endif()
-            if (GGML_AVX512_BF16)
-                add_compile_definitions($<$<COMPILE_LANGUAGE:C>:__AVX512BF16__>)
-                add_compile_definitions($<$<COMPILE_LANGUAGE:CXX>:__AVX512BF16__>)
-            endif()
-            if (GGML_AMX_TILE)
-                add_compile_definitions($<$<COMPILE_LANGUAGE:C>:__AMX_TILE__>)
-                add_compile_definitions($<$<COMPILE_LANGUAGE:CXX>:__AMX_TILE__>)
-            endif()
-            if (GGML_AMX_INT8)
-                add_compile_definitions($<$<COMPILE_LANGUAGE:C>:__AMX_INT8__>)
-                add_compile_definitions($<$<COMPILE_LANGUAGE:CXX>:__AMX_INT8__>)
-            endif()
-            if (GGML_AMX_BF16)
-                add_compile_definitions($<$<COMPILE_LANGUAGE:C>:__AMX_BF16__>)
-                add_compile_definitions($<$<COMPILE_LANGUAGE:CXX>:__AMX_BF16__>)
-            endif()
-        elseif (GGML_AVX2)
-            list(APPEND ARCH_FLAGS /arch:AVX2)
-        elseif (GGML_AVX)
-            list(APPEND ARCH_FLAGS /arch:AVX)
-        endif()
-    else()
-        if (GGML_NATIVE)
-            list(APPEND ARCH_FLAGS -march=native)
-        endif()
-        if (GGML_F16C)
-            list(APPEND ARCH_FLAGS -mf16c)
-        endif()
-        if (GGML_FMA)
-            list(APPEND ARCH_FLAGS -mfma)
-        endif()
-        if (GGML_AVX)
-            list(APPEND ARCH_FLAGS -mavx)
-        endif()
-        if (GGML_AVX2)
-            list(APPEND ARCH_FLAGS -mavx2)
-        endif()
-        if (GGML_AVX512)
-            list(APPEND ARCH_FLAGS -mavx512f)
-            list(APPEND ARCH_FLAGS -mavx512dq)
-            list(APPEND ARCH_FLAGS -mavx512bw)
-        endif()
-        if (GGML_AVX512_VBMI)
-            list(APPEND ARCH_FLAGS -mavx512vbmi)
-        endif()
-        if (GGML_AVX512_VNNI)
-            list(APPEND ARCH_FLAGS -mavx512vnni)
-        endif()
-        if (GGML_AVX512_BF16)
-            list(APPEND ARCH_FLAGS -mavx512bf16)
-        endif()
-        if (GGML_AMX_TILE)
-            list(APPEND ARCH_FLAGS -mamx-tile)
-        endif()
-        if (GGML_AMX_INT8)
-            list(APPEND ARCH_FLAGS -mamx-int8)
-        endif()
-        if (GGML_AMX_BF16)
-            list(APPEND ARCH_FLAGS -mamx-bf16)
-        endif()
-    endif()
-
-    target_compile_options(ggml-amx PRIVATE ${ARCH_FLAGS})
-else()
-    set(GGML_AMX OFF PARENT_SCOPE)
-    message(WARNING "AMX requires x86 and gcc version > 11.0. Turning off GGML_AMX.")
-endif()

ggml/src/ggml-amx/ggml-amx.cpp

@@ -1,449 +0,0 @@
-#include "ggml-amx.h"
-#include "ggml-amx/common.h"
-#include "ggml-amx/mmq.h"
-#include "ggml-backend-impl.h"
-#include "ggml-impl.h"
-
-#if defined(__gnu_linux__)
-#include <sys/syscall.h>
-#include <unistd.h>
-#endif
-
-#include <cstdlib>
-#include <cstring>
-#include <memory>
-
-#if defined(__AMX_INT8__)
-
-// AMX buffer interface
-static void ggml_backend_amx_buffer_free_buffer(ggml_backend_buffer_t buffer) {
-    free(buffer->context);
-}
-
-static void * ggml_backend_amx_buffer_get_base(ggml_backend_buffer_t buffer) {
-    return (void *)(buffer->context);
-}
-
-static void ggml_backend_amx_buffer_memset_tensor(ggml_backend_buffer_t buffer, struct ggml_tensor * tensor, uint8_t value, size_t offset, size_t size) {
-    memset((char *)tensor->data + offset, value, size);
-
-    GGML_UNUSED(buffer);
-}
-
-static void ggml_backend_amx_buffer_set_tensor(ggml_backend_buffer_t buffer, struct ggml_tensor * tensor, const void * data, size_t offset, size_t size) {
-    if (qtype_has_amx_kernels(tensor->type)) {
-        ggml_backend_amx_convert_weight(tensor, data, offset, size);
-    } else {
-        memcpy((char *)tensor->data + offset, data, size);
-    }
-
-    GGML_UNUSED(buffer);
-}
-
-static void ggml_backend_amx_buffer_get_tensor(ggml_backend_buffer_t buffer, const struct ggml_tensor * tensor, void * data, size_t offset, size_t size) {
-    GGML_ASSERT(!qtype_has_amx_kernels(tensor->type));
-    memcpy(data, (const char *)tensor->data + offset, size);
-
-    GGML_UNUSED(buffer);
-}
-
-static bool ggml_backend_amx_buffer_cpy_tensor(ggml_backend_buffer_t buffer, const struct ggml_tensor * src, struct ggml_tensor * dst) {
-    if (ggml_backend_buffer_is_host(src->buffer)) {
-        if (qtype_has_amx_kernels(src->type)) {
-            ggml_backend_amx_convert_weight(dst, src->data, 0, ggml_backend_amx_get_alloc_size(dst));
-        } else {
-            memcpy(dst->data, src->data, ggml_nbytes(src));
-        }
-        return true;
-    }
-    return false;
-
-    GGML_UNUSED(buffer);
-}
-
-static void ggml_backend_amx_buffer_clear(ggml_backend_buffer_t buffer, uint8_t value) {
-    memset(buffer->context, value, buffer->size);
-}
-
-static ggml_backend_buffer_i ggml_backend_amx_buffer_interface = {
-    /* .free_buffer     = */ ggml_backend_amx_buffer_free_buffer,
-    /* .get_base        = */ ggml_backend_amx_buffer_get_base,
-    /* .init_tensor     = */ NULL, // no initialization required
-    /* .memset_tensor   = */ ggml_backend_amx_buffer_memset_tensor,
-    /* .set_tensor      = */ ggml_backend_amx_buffer_set_tensor,
-    /* .get_tensor      = */ ggml_backend_amx_buffer_get_tensor,
-    /* .cpy_tensor      = */ ggml_backend_amx_buffer_cpy_tensor,
-    /* .clear           = */ ggml_backend_amx_buffer_clear,
-    /* .reset           = */ NULL,
-};
-
-static const char * ggml_backend_amx_buffer_type_get_name(ggml_backend_buffer_type_t buft) {
-    return "AMX";
-
-    GGML_UNUSED(buft);
-}
-
-static ggml_backend_buffer_t ggml_backend_amx_buffer_type_alloc_buffer(ggml_backend_buffer_type_t buft, size_t size) {
-    void * data = aligned_alloc(TENSOR_ALIGNMENT, size);
-    if (data == NULL) {
-        fprintf(stderr, "%s: failed to allocate buffer of size %zu\n", __func__, size);
-        return NULL;
-    }
-
-    return ggml_backend_buffer_init(buft, ggml_backend_amx_buffer_interface, data, size);
-}
-
-static size_t ggml_backend_amx_buffer_type_get_alignment(ggml_backend_buffer_type_t buft) {
-    return TENSOR_ALIGNMENT;
-
-    GGML_UNUSED(buft);
-}
-
-static size_t ggml_backend_amx_buffer_type_get_alloc_size(ggml_backend_buffer_type_t buft, const ggml_tensor* tensor) {
-    return ggml_backend_amx_get_alloc_size(tensor);
-
-    GGML_UNUSED(buft);
-}
-
-static bool ggml_backend_amx_buffer_type_is_host(ggml_backend_buffer_type_t buft) {
-    return false;
-
-    GGML_UNUSED(buft);
-}
-
-ggml_backend_buffer_type_t ggml_backend_amx_buffer_type() {
-    static struct ggml_backend_buffer_type ggml_backend_buffer_type_amx = {
-        /* .iface = */ {
-            /* .get_name         = */ ggml_backend_amx_buffer_type_get_name,
-            /* .alloc_buffer     = */ ggml_backend_amx_buffer_type_alloc_buffer,
-            /* .get_alignment    = */ ggml_backend_amx_buffer_type_get_alignment,
-            /* .get_max_size     = */ NULL, // defaults to SIZE_MAX
-            /* .get_alloc_size   = */ ggml_backend_amx_buffer_type_get_alloc_size,
-            /* .is_host          = */ ggml_backend_amx_buffer_type_is_host,
-        },
-        /* .device  = */ ggml_backend_reg_dev_get(ggml_backend_amx_reg(), 0),
-        /* .context = */ NULL,
-    };
-
-    return &ggml_backend_buffer_type_amx;
-}
-
-// backend interface
-
-static const char * ggml_backend_amx_name(ggml_backend_t backend) {
-    return "AMX";
-
-    GGML_UNUSED(backend);
-}
-
-static void ggml_backend_amx_free(ggml_backend_t backend) {
-    ggml_backend_amx_context * ctx = (ggml_backend_amx_context *)backend->context;
-    delete ctx;
-    delete backend;
-}
-
-static enum ggml_status ggml_backend_amx_graph_compute(ggml_backend_t backend, struct ggml_cgraph * cgraph) {
-    ggml_backend_amx_context * ctx = (ggml_backend_amx_context *)backend->context;
-
-    for (int i = 0; i < cgraph->n_nodes; i++) {
-        struct ggml_tensor * node = cgraph->nodes[i];
-
-        switch (node->op) {
-        case GGML_OP_MUL_MAT:
-            ggml_backend_amx_mul_mat(ctx, node);
-            break;
-
-        case GGML_OP_NONE:
-        case GGML_OP_RESHAPE:
-        case GGML_OP_VIEW:
-        case GGML_OP_PERMUTE:
-        case GGML_OP_TRANSPOSE:
-            break;
-
-        default:
-            fprintf(stderr, "%s: unsupported op %s\n", __func__, ggml_op_desc(node));
-            GGML_ASSERT(false);
-        }
-    }
-
-    return GGML_STATUS_SUCCESS;
-
-    GGML_UNUSED(backend);
-}
-
-static struct ggml_backend_i ggml_backend_amx_i = {
-    /* .get_name                = */ ggml_backend_amx_name,
-    /* .free                    = */ ggml_backend_amx_free,
-    /* .set_tensor_async        = */ NULL,
-    /* .get_tensor_async        = */ NULL,
-    /* .cpy_tensor_async        = */ NULL,
-    /* .synchronize             = */ NULL,
-    /* .graph_plan_create       = */ NULL,
-    /* .graph_plan_free         = */ NULL,
-    /* .graph_plan_update       = */ NULL,
-    /* .graph_plan_compute      = */ NULL,
-    /* .graph_compute           = */ ggml_backend_amx_graph_compute,
-    /* .event_record            = */ NULL,
-    /* .event_wait              = */ NULL,
-};
-
-static ggml_guid_t ggml_backend_amx_guid() {
-    static ggml_guid guid = { 0x13, 0xb8, 0xa4, 0xc4, 0xba, 0xfe, 0x51, 0x67, 0x87, 0x44, 0x55, 0x15, 0xb2, 0x35, 0x62, 0x3e };
-    return &guid;
-}
-
-#define ARCH_GET_XCOMP_PERM     0x1022
-#define ARCH_REQ_XCOMP_PERM     0x1023
-#define XFEATURE_XTILECFG       17
-#define XFEATURE_XTILEDATA      18
-
-static bool ggml_amx_init() {
-#if defined(__gnu_linux__)
-    if (syscall(SYS_arch_prctl, ARCH_REQ_XCOMP_PERM, XFEATURE_XTILEDATA)) {
-        fprintf(stderr, "AMX is not ready to be used!\n");
-        return false;
-    }
-    return true;
-#elif defined(_WIN32)
-    return true;
-#endif
-}
-
-ggml_backend_t ggml_backend_amx_init() {
-
-    // invoke a Linux system call to request access to AMX features
-    ggml_amx_init();
-
-    // backend context
-    ggml_backend_amx_context * ctx = new ggml_backend_amx_context;
-
-    // ggml amx backend
-    ggml_backend_t backend = new ggml_backend {
-        /* .guid      = */ ggml_backend_amx_guid(),
-        /* .interface = */ ggml_backend_amx_i,
-        /* .device    = */ ggml_backend_reg_dev_get(ggml_backend_amx_reg(), 0),
-        /* .context   = */ ctx,
-    };
-
-    return backend;
-}
-
-bool ggml_backend_is_amx(ggml_backend_t backend) {
-    return backend != NULL && ggml_guid_matches(backend->guid, ggml_backend_amx_guid());
-}
-
-void ggml_backend_amx_set_n_threads(ggml_backend_t backend_amx, int n_threads) {
-    GGML_ASSERT(ggml_backend_is_amx(backend_amx));
-
-    ggml_backend_amx_context * ctx = (ggml_backend_amx_context *)backend_amx->context;
-    ctx->n_threads = n_threads;
-}
-
-// device interface
-
-static const char * ggml_backend_amx_device_get_name(ggml_backend_dev_t dev) {
-    return "AMX";
-
-    GGML_UNUSED(dev);
-}
-
-static const char * ggml_backend_amx_device_get_description(ggml_backend_dev_t dev) {
-    return "Intel Advanced Matrix Extensions";
-
-    GGML_UNUSED(dev);
-}
-
-static void ggml_backend_amx_device_get_memory(ggml_backend_dev_t dev, size_t * free, size_t * total) {
-    // TODO
-    *free = 0;
-    *total = 0;
-
-    GGML_UNUSED(dev);
-}
-
-static enum ggml_backend_dev_type ggml_backend_amx_device_get_type(ggml_backend_dev_t dev) {
-    return GGML_BACKEND_DEVICE_TYPE_ACCEL;
-
-    GGML_UNUSED(dev);
-}
-
-static void ggml_backend_amx_device_get_props(ggml_backend_dev_t dev, struct ggml_backend_dev_props * props) {
-    props->name        = ggml_backend_amx_device_get_name(dev);
-    props->description = ggml_backend_amx_device_get_description(dev);
-    props->type        = ggml_backend_amx_device_get_type(dev);
-    ggml_backend_amx_device_get_memory(dev, &props->memory_free, &props->memory_total);
-
-    // `buffer_from_host_ptr` is intended to be used in mmap, when memory layout unchanged
-    props->caps = {
-        /* .async                 = */ false,
-        /* .host_buffer           = */ false,
-        /* .buffer_from_host_ptr  = */ false,
-        /* .events                = */ false,
-    };
-}
-
-static ggml_backend_t ggml_backend_amx_device_init(ggml_backend_dev_t dev, const char * params) {
-    return ggml_backend_amx_init();
-
-    GGML_UNUSED(dev);
-    GGML_UNUSED(params);
-}
-
-static ggml_backend_buffer_type_t ggml_backend_amx_device_get_buffer_type(ggml_backend_dev_t dev) {
-    return ggml_backend_amx_buffer_type();
-
-    GGML_UNUSED(dev);
-}
-
-static bool ggml_backend_amx_device_supports_op(ggml_backend_dev_t dev, const struct ggml_tensor * op) {
-
-    // handle only 2d gemm for now
-    auto is_contiguous_2d = [](const struct ggml_tensor * t) {
-        return ggml_is_contiguous(t) && t->ne[3] == 1 && t->ne[2] == 1;
-    };
-
-    switch (op->op) {
-        case GGML_OP_NONE:
-        case GGML_OP_RESHAPE:
-        case GGML_OP_VIEW:
-        case GGML_OP_PERMUTE:
-        case GGML_OP_TRANSPOSE:
-            return true;
-
-        case GGML_OP_MUL_MAT: {
-            const struct ggml_tensor * src0 = op->src[0];
-            const struct ggml_tensor * src1 = op->src[1];
-
-            const enum ggml_type type = src0->type;
-            const int64_t ne0 = op->ne[0];
-
-            // amx kernels enables for Q4_0, Q4_1, Q8_0, F16
-            // Q4_K, Q5_K, Q6_K, IQ4_XS enabled for QK_K = 256
-            bool has_amx_kernels = qtype_has_amx_kernels(type) || (type == GGML_TYPE_F16);
-
-            bool can_use_amx =
-                is_contiguous_2d(src0) &&       // src0 must be contiguous
-                is_contiguous_2d(src1) &&       // src1 must be contiguous
-                src1->type == GGML_TYPE_F32 &&  // src1 must be float32
-                has_amx_kernels &&              // with amx kernel impls
-                ne0 % (TILE_N * 2) == 0;        // out_features is 32x
-
-            return can_use_amx;
-        }
-        default:
-            return false;
-    }
-
-    GGML_UNUSED(dev);
-}
-
-static bool ggml_backend_amx_device_supports_buft(ggml_backend_dev_t dev, ggml_backend_buffer_type_t buft) {
-    return buft->iface.get_name == ggml_backend_amx_buffer_type_get_name;
-
-    GGML_UNUSED(dev);
-}
-
-static const struct ggml_backend_device_i ggml_backend_amx_device_i = {
-    /* .get_name             = */ ggml_backend_amx_device_get_name,
-    /* .get_description      = */ ggml_backend_amx_device_get_description,
-    /* .get_memory           = */ ggml_backend_amx_device_get_memory,
-    /* .get_type             = */ ggml_backend_amx_device_get_type,
-    /* .get_props            = */ ggml_backend_amx_device_get_props,
-    /* .init_backend         = */ ggml_backend_amx_device_init,
-    /* .get_buffer_type      = */ ggml_backend_amx_device_get_buffer_type,
-    /* .get_host_buffer_type = */ NULL,
-    /* .buffer_from_host_ptr = */ NULL,
-    /* .supports_op          = */ ggml_backend_amx_device_supports_op,
-    /* .supports_buft        = */ ggml_backend_amx_device_supports_buft,
-    /* .offload_op           = */ NULL,
-    /* .event_new            = */ NULL,
-    /* .event_free           = */ NULL,
-    /* .event_synchronize    = */ NULL,
-};
-
-// backend reg interface
-
-static const char * ggml_backend_amx_reg_get_name(ggml_backend_reg_t reg) {
-    return "AMX";
-
-    GGML_UNUSED(reg);
-}
-
-static size_t ggml_backend_amx_reg_get_device_count(ggml_backend_reg_t reg) {
-    return 1;
-
-    GGML_UNUSED(reg);
-}
-
-static ggml_backend_dev_t ggml_backend_amx_reg_get_device(ggml_backend_reg_t reg, size_t index) {
-    GGML_ASSERT(index == 0);
-
-    static ggml_backend_device ggml_backend_amx_device = {
-        /* .iface   = */ ggml_backend_amx_device_i,
-        /* .reg     = */ reg,
-        /* .context = */ nullptr,
-    };
-
-    return &ggml_backend_amx_device;
-
-    GGML_UNUSED(reg);
-    GGML_UNUSED(index);
-}
-
-static void * ggml_backend_amx_get_proc_address(ggml_backend_reg_t reg, const char * name) {
-    if (std::strcmp(name, "ggml_backend_set_n_threads") == 0) {
-        return (void *)ggml_backend_amx_set_n_threads;
-    }
-    return NULL;
-
-    GGML_UNUSED(reg);
-    GGML_UNUSED(name);
-}
-
-static const struct ggml_backend_reg_i ggml_backend_amx_reg_i = {
-    /* .get_name         = */ ggml_backend_amx_reg_get_name,
-    /* .get_device_count = */ ggml_backend_amx_reg_get_device_count,
-    /* .get_device       = */ ggml_backend_amx_reg_get_device,
-    /* .get_proc_address = */ ggml_backend_amx_get_proc_address,
-};
-
-ggml_backend_reg_t ggml_backend_amx_reg(void) {
-    static struct ggml_backend_reg ggml_backend_amx_reg = {
-        /* .api_version = */ GGML_BACKEND_API_VERSION,
-        /* .iface       = */ ggml_backend_amx_reg_i,
-        /* .context     = */ NULL,
-    };
-
-    return &ggml_backend_amx_reg;
-}
-
-#else // if defined(__AMX_INT8__)
-
-ggml_backend_buffer_type_t ggml_backend_amx_buffer_type(void) {
-    return nullptr;
-}
-
-bool ggml_backend_is_amx(ggml_backend_t backend) {
-    GGML_UNUSED(backend);
-    return false;
-}
-
-ggml_backend_t ggml_backend_amx_init(void) {
-    fprintf(stderr, "GGML is not compiled with AMX support!\n");
-    return nullptr;
-}
-
-void ggml_backend_amx_set_n_threads(ggml_backend_t backend_amx, int n_threads) {
-    fprintf(stderr, "GGML is not compiled with AMX support!\n");
-
-    GGML_UNUSED(backend_amx);
-    GGML_UNUSED(n_threads);
-}
-
-ggml_backend_reg_t ggml_backend_amx_reg(void) {
-    return nullptr;
-}
-
-#endif
-
-GGML_BACKEND_DL_IMPL(ggml_backend_amx_reg)

ggml/src/ggml-backend-reg.cpp

@@ -49,10 +49,6 @@
 #include "ggml-rpc.h"
 #endif
 
-#ifdef GGML_USE_AMX
-#  include "ggml-amx.h"
-#endif
-
 #ifdef GGML_USE_CANN
 #include "ggml-cann.h"
 #endif
@@ -92,9 +88,6 @@ struct ggml_backend_registry {
 #ifdef GGML_USE_RPC
         register_backend(ggml_backend_rpc_reg());
 #endif
-#ifdef GGML_USE_AMX
-        register_backend(ggml_backend_amx_reg());
-#endif
 #ifdef GGML_USE_KOMPUTE
         register_backend(ggml_backend_kompute_reg());
 #endif

ggml/src/ggml-backend.cpp

@@ -742,7 +742,8 @@ static int ggml_backend_sched_backend_id_from_cur(ggml_backend_sched_t sched, st
 
     if (tensor->buffer || (tensor->view_src && tensor->view_src->buffer)) {
         // since the tensor is pre-allocated, it cannot be moved to another backend
-        GGML_ABORT("pre-allocated tensor (%s) in a backend that cannot run the operation", tensor->name);
+        ggml_backend_buffer_t buffer = tensor->view_src ? tensor->view_src->buffer : tensor->buffer;
+        GGML_ABORT("pre-allocated tensor (%s) in a buffer (%s) that cannot run the operation (%s)", tensor->name, ggml_backend_buffer_name(buffer), ggml_op_name(tensor->op));
     }
 
     // graph input

ggml/src/ggml-cpu/CMakeLists.txt

@@ -1,12 +1,20 @@
-ggml_add_backend_library(ggml-cpu
+ggml_add_backend_library(ggml-cpu)
-                         ggml-cpu.c
-                         ggml-cpu.cpp
-                         ggml-cpu-aarch64.c
-                         ggml-cpu-aarch64.h
-                         ggml-cpu-quants.c
-                         ggml-cpu-quants.h
-                        )
 
+list (APPEND GGML_CPU_SOURCES
+    ggml-cpu.c
+    ggml-cpu.cpp
+    ggml-cpu-aarch64.c
+    ggml-cpu-aarch64.h
+    ggml-cpu-quants.c
+    ggml-cpu-quants.h
+    amx/amx.cpp
+    amx/amx.h
+    amx/mmq.cpp
+    amx/mmq.h
+    ggml-cpu-impl.h
+    )
+
+target_compile_features(ggml-cpu PRIVATE c_std_11 cxx_std_17)
 target_include_directories(ggml-cpu PRIVATE .)
 
 if (APPLE AND GGML_ACCELERATE)
@@ -14,9 +22,9 @@ if (APPLE AND GGML_ACCELERATE)
     if (ACCELERATE_FRAMEWORK)
         message(STATUS "Accelerate framework found")
 
-        add_compile_definitions(GGML_USE_ACCELERATE)
+        target_compile_definitions(ggml-cpu PRIVATE GGML_USE_ACCELERATE)
-        add_compile_definitions(ACCELERATE_NEW_LAPACK)
+        target_compile_definitions(ggml-cpu PRIVATE ACCELERATE_NEW_LAPACK)
-        add_compile_definitions(ACCELERATE_LAPACK_ILP64)
+        target_compile_definitions(ggml-cpu PRIVATE ACCELERATE_LAPACK_ILP64)
 
         target_link_libraries(ggml-cpu PRIVATE ${ACCELERATE_FRAMEWORK})
     else()
@@ -29,15 +37,9 @@ if (GGML_OPENMP)
     if (OpenMP_FOUND)
         message(STATUS "OpenMP found")
 
-        add_compile_definitions(GGML_USE_OPENMP)
+        target_compile_definitions(ggml-cpu PRIVATE GGML_USE_OPENMP)
 
         target_link_libraries(ggml-cpu PRIVATE OpenMP::OpenMP_C OpenMP::OpenMP_CXX)
-
-        # FIXME: should be replaced with a compiler id check
-        #if (GGML_MUSA)
-        #    list(APPEND GGML_CPU_EXTRA_INCLUDES     "/usr/lib/llvm-14/lib/clang/14.0.0/include")
-        #    list(APPEND GGML_CPU_EXTRA_LIBS_PRIVATE "/usr/lib/llvm-14/lib/libomp.so")
-        #endif()
     else()
         message(WARNING "OpenMP not found")
     endif()
@@ -46,11 +48,11 @@ endif()
 if (GGML_LLAMAFILE)
     message(STATUS "Using llamafile")
 
-    add_compile_definitions(GGML_USE_LLAMAFILE)
+    target_compile_definitions(ggml-cpu PRIVATE GGML_USE_LLAMAFILE)
 
-    target_sources(ggml-cpu PRIVATE
+    list(APPEND GGML_CPU_SOURCES
-                    llamafile/sgemm.cpp
+                llamafile/sgemm.cpp
-                    llamafile/sgemm.h)
+                llamafile/sgemm.h)
 endif()
 
 if (GGML_CPU_HBM)
@@ -58,7 +60,7 @@ if (GGML_CPU_HBM)
 
     message(STATUS "Using memkind for CPU HBM")
 
-    add_compile_definitions(GGML_USE_CPU_HBM)
+    target_compile_definitions(ggml-cpu PRIVATE GGML_USE_CPU_HBM)
 
     target_link_libraries(ggml-cpu PUBLIC memkind)
 endif()
@@ -72,16 +74,16 @@ if (CMAKE_OSX_ARCHITECTURES      STREQUAL "arm64" OR
     message(STATUS "ARM detected")
 
     if (MSVC)
-        add_compile_definitions(__aarch64__) # MSVC defines _M_ARM64 instead
+        list(APPEND ARCH_DEFINITIONS __aarch64__) # MSVC defines _M_ARM64 instead
-        add_compile_definitions(__ARM_NEON)
+        list(APPEND ARCH_DEFINITIONS __ARM_NEON)
-        add_compile_definitions(__ARM_FEATURE_FMA)
+        list(APPEND ARCH_DEFINITIONS __ARM_FEATURE_FMA)
 
         set(CMAKE_REQUIRED_FLAGS_PREV ${CMAKE_REQUIRED_FLAGS})
         string(JOIN " " CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS} "/arch:armv8.2")
 
         check_cxx_source_compiles("#include <arm_neon.h>\nint main() { int8x16_t _a, _b; int32x4_t _s = vdotq_s32(_s, _a, _b); return 0; }" GGML_COMPILER_SUPPORT_DOTPROD)
         if (GGML_COMPILER_SUPPORT_DOTPROD)
-            add_compile_definitions(__ARM_FEATURE_DOTPROD)
+            list(APPEND ARCH_DEFINITIONS __ARM_FEATURE_DOTPROD)
 
             message(STATUS "ARM feature DOTPROD enabled")
         endif ()
@@ -89,14 +91,14 @@ if (CMAKE_OSX_ARCHITECTURES      STREQUAL "arm64" OR
         check_cxx_source_compiles("#include <arm_neon.h>\nint main() { int8x16_t _a, _b; int32x4_t _s = vmmlaq_f32(_s, _a, _b); return 0; }" GGML_COMPILER_SUPPORT_MATMUL_INT8)
 
         if (GGML_COMPILER_SUPPORT_MATMUL_INT8)
-            add_compile_definitions(__ARM_FEATURE_MATMUL_INT8)
+            list(APPEND ARCH_DEFINITIONS __ARM_FEATURE_MATMUL_INT8)
 
             message(STATUS "ARM feature MATMUL_INT8 enabled")
         endif ()
 
         check_cxx_source_compiles("#include <arm_neon.h>\nint main() { float16_t _a; float16x8_t _s = vdupq_n_f16(_a); return 0; }" GGML_COMPILER_SUPPORT_FP16_VECTOR_ARITHMETIC)
         if (GGML_COMPILER_SUPPORT_FP16_VECTOR_ARITHMETIC)
-            add_compile_definitions(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC)
+            list(APPEND ARCH_DEFINITIONS __ARM_FEATURE_FP16_VECTOR_ARITHMETIC)
 
             message(STATUS "ARM feature FP16_VECTOR_ARITHMETIC enabled")
         endif ()
@@ -118,7 +120,7 @@ if (CMAKE_OSX_ARCHITECTURES      STREQUAL "arm64" OR
                 check_cxx_source_compiles("#include <arm_neon.h>\nint main() { int8x16_t _a, _b; int32x4_t _s = vdotq_s32(_s, _a, _b); return 0; }" GGML_COMPILER_SUPPORT_DOTPROD)
                 if (GGML_COMPILER_SUPPORT_DOTPROD)
                     set(MARCH_FLAGS "${MARCH_FLAGS}+dotprod")
-                    add_compile_definitions(__ARM_FEATURE_DOTPROD)
+                    list(APPEND ARCH_DEFINITIONS __ARM_FEATURE_DOTPROD)
 
                     message(STATUS "ARM feature DOTPROD enabled")
                 endif ()
@@ -131,7 +133,7 @@ if (CMAKE_OSX_ARCHITECTURES      STREQUAL "arm64" OR
                 check_cxx_source_compiles("#include <arm_neon.h>\nint main() { int8x16_t _a, _b; int32x4_t _s = vmmlaq_s32(_s, _a, _b); return 0; }" GGML_COMPILER_SUPPORT_MATMUL_INT8)
                 if (GGML_COMPILER_SUPPORT_MATMUL_INT8)
                     set(MARCH_FLAGS "${MARCH_FLAGS}+i8mm")
-                    add_compile_definitions(__ARM_FEATURE_MATMUL_INT8)
+                    list(APPEND ARCH_DEFINITIONS __ARM_FEATURE_MATMUL_INT8)
 
                     message(STATUS "ARM feature MATMUL_INT8 enabled")
                 endif ()
@@ -175,7 +177,6 @@ elseif (CMAKE_OSX_ARCHITECTURES STREQUAL "x86_64" OR CMAKE_GENERATOR_PLATFORM_LW
     if (MSVC)
         # instruction set detection for MSVC only
         if (GGML_NATIVE)
-            # TODO: improve, should not reference files from the parent folder
             include(cmake/FindSIMD.cmake)
         endif ()
         if (GGML_AVX512)
@@ -185,37 +186,31 @@ elseif (CMAKE_OSX_ARCHITECTURES STREQUAL "x86_64" OR CMAKE_GENERATOR_PLATFORM_LW
             # macros corresponding to the extensions.
             # Do it manually.
             if (GGML_AVX512_VBMI)
-                add_compile_definitions($<$<COMPILE_LANGUAGE:C>:__AVX512VBMI__>)
+                list(APPEND ARCH_DEFINITIONS __AVX512VBMI__)
-                add_compile_definitions($<$<COMPILE_LANGUAGE:CXX>:__AVX512VBMI__>)
                 if (CMAKE_C_COMPILER_ID STREQUAL "Clang")
                     list(APPEND ARCH_FLAGS -mavx512vbmi)
                 endif()
             endif()
             if (GGML_AVX512_VNNI)
-                add_compile_definitions($<$<COMPILE_LANGUAGE:C>:__AVX512VNNI__>)
+                list(APPEND ARCH_DEFINITIONS __AVX512VNNI__)
-                add_compile_definitions($<$<COMPILE_LANGUAGE:CXX>:__AVX512VNNI__>)
                 if (CMAKE_C_COMPILER_ID STREQUAL "Clang")
                     list(APPEND ARCH_FLAGS -mavx512vnni)
                 endif()
             endif()
             if (GGML_AVX512_BF16)
-                add_compile_definitions($<$<COMPILE_LANGUAGE:C>:__AVX512BF16__>)
+                list(APPEND ARCH_DEFINITIONS __AVX512BF16__)
-                add_compile_definitions($<$<COMPILE_LANGUAGE:CXX>:__AVX512BF16__>)
                 if (CMAKE_C_COMPILER_ID STREQUAL "Clang")
                     list(APPEND ARCH_FLAGS -mavx512bf16)
                 endif()
             endif()
             if (GGML_AMX_TILE)
-                add_compile_definitions($<$<COMPILE_LANGUAGE:C>:__AMX_TILE__>)
+                list(APPEND ARCH_DEFINITIONS __AMX_TILE__)
-                add_compile_definitions($<$<COMPILE_LANGUAGE:CXX>:__AMX_TILE__>)
             endif()
             if (GGML_AMX_INT8)
-                add_compile_definitions($<$<COMPILE_LANGUAGE:C>:__AMX_INT8__>)
+                list(APPEND ARCH_DEFINITIONS __AMX_INT8__)
-                add_compile_definitions($<$<COMPILE_LANGUAGE:CXX>:__AMX_INT8__>)
             endif()
             if (GGML_AMX_BF16)
-                add_compile_definitions($<$<COMPILE_LANGUAGE:C>:__AMX_BF16__>)
+                list(APPEND ARCH_DEFINITIONS __AMX_BF16__)
-                add_compile_definitions($<$<COMPILE_LANGUAGE:CXX>:__AMX_BF16__>)
             endif()
         elseif (GGML_AVX2)
             list(APPEND ARCH_FLAGS /arch:AVX2)
@@ -276,7 +271,7 @@ elseif (${CMAKE_SYSTEM_PROCESSOR} MATCHES "ppc64")
        list(APPEND ARCH_FLAGS -mcpu=powerpc64le)
     else()
         list(APPEND ARCH_FLAGS -mcpu=native -mtune=native)
-        #TODO: Add  targets for Power8/Power9 (Altivec/VSX) and Power10(MMA) and query for big endian systems (ppc64/le/be)
+        # TODO: Add  targets for Power8/Power9 (Altivec/VSX) and Power10(MMA) and query for big endian systems (ppc64/le/be)
     endif()
 elseif (${CMAKE_SYSTEM_PROCESSOR} MATCHES "loongarch64")
     message(STATUS "loongarch64 detected")
@@ -299,11 +294,12 @@ endif()
 
 if (GGML_CPU_AARCH64)
     message(STATUS "Using runtime weight conversion of Q4_0 to Q4_0_x_x to enable optimized GEMM/GEMV kernels")
-    add_compile_definitions(GGML_USE_CPU_AARCH64)
+    target_compile_definitions(ggml-cpu PRIVATE GGML_USE_CPU_AARCH64)
 endif()
 
-target_compile_options(ggml-cpu PRIVATE "$<$<COMPILE_LANGUAGE:CXX>:${ARCH_FLAGS}>")
+target_sources(ggml-cpu PRIVATE ${GGML_CPU_SOURCES})
-target_compile_options(ggml-cpu PRIVATE "$<$<COMPILE_LANGUAGE:C>:${ARCH_FLAGS}>")
+set_source_files_properties(${GGML_CPU_SOURCES} PROPERTIES COMPILE_OPTIONS     "${ARCH_FLAGS}")
+set_source_files_properties(${GGML_CPU_SOURCES} PROPERTIES COMPILE_DEFINITIONS "${ARCH_DEFINITIONS}")
 
 if (EMSCRIPTEN)
     set_target_properties(ggml-cpu PROPERTIES COMPILE_FLAGS "-msimd128")

ggml/src/ggml-cpu/amx/amx.cpp

@@ -0,0 +1,196 @@
+#include "amx.h"
+#include "common.h"
+#include "mmq.h"
+#include "ggml-backend-impl.h"
+#include "ggml-backend.h"
+#include "ggml-impl.h"
+#include "ggml-cpu.h"
+
+#if defined(__gnu_linux__)
+#include <sys/syscall.h>
+#include <unistd.h>
+#endif
+
+#include <cstdlib>
+#include <cstring>
+#include <memory>
+
+#if defined(__AMX_INT8__) && defined(__AVX512VNNI__)
+
+// AMX buffer interface
+static void ggml_backend_amx_buffer_free_buffer(ggml_backend_buffer_t buffer) {
+    free(buffer->context);
+}
+
+static void * ggml_backend_amx_buffer_get_base(ggml_backend_buffer_t buffer) {
+    return (void *)(buffer->context);
+}
+
+static void ggml_backend_amx_buffer_memset_tensor(ggml_backend_buffer_t buffer, struct ggml_tensor * tensor, uint8_t value, size_t offset, size_t size) {
+    memset((char *)tensor->data + offset, value, size);
+
+    GGML_UNUSED(buffer);
+}
+
+static void ggml_backend_amx_buffer_set_tensor(ggml_backend_buffer_t buffer, struct ggml_tensor * tensor, const void * data, size_t offset, size_t size) {
+    if (qtype_has_amx_kernels(tensor->type)) {
+        ggml_backend_amx_convert_weight(tensor, data, offset, size);
+    } else {
+        memcpy((char *)tensor->data + offset, data, size);
+    }
+
+    GGML_UNUSED(buffer);
+}
+
+static void ggml_backend_amx_buffer_get_tensor(ggml_backend_buffer_t buffer, const struct ggml_tensor * tensor, void * data, size_t offset, size_t size) {
+    GGML_ASSERT(!qtype_has_amx_kernels(tensor->type));
+    memcpy(data, (const char *)tensor->data + offset, size);
+
+    GGML_UNUSED(buffer);
+}
+
+static bool ggml_backend_amx_buffer_cpy_tensor(ggml_backend_buffer_t buffer, const struct ggml_tensor * src, struct ggml_tensor * dst) {
+    if (ggml_backend_buffer_is_host(src->buffer)) {
+        if (qtype_has_amx_kernels(src->type)) {
+            ggml_backend_amx_convert_weight(dst, src->data, 0, ggml_nbytes(dst));
+        } else {
+            memcpy(dst->data, src->data, ggml_nbytes(src));
+        }
+        return true;
+    }
+    return false;
+
+    GGML_UNUSED(buffer);
+}
+
+static void ggml_backend_amx_buffer_clear(ggml_backend_buffer_t buffer, uint8_t value) {
+    memset(buffer->context, value, buffer->size);
+}
+
+static ggml_backend_buffer_i ggml_backend_amx_buffer_interface = {
+    /* .free_buffer     = */ ggml_backend_amx_buffer_free_buffer,
+    /* .get_base        = */ ggml_backend_amx_buffer_get_base,
+    /* .init_tensor     = */ NULL, // no initialization required
+    /* .memset_tensor   = */ ggml_backend_amx_buffer_memset_tensor,
+    /* .set_tensor      = */ ggml_backend_amx_buffer_set_tensor,
+    /* .get_tensor      = */ ggml_backend_amx_buffer_get_tensor,
+    /* .cpy_tensor      = */ ggml_backend_amx_buffer_cpy_tensor,
+    /* .clear           = */ ggml_backend_amx_buffer_clear,
+    /* .reset           = */ NULL,
+};
+
+static const char * ggml_backend_amx_buffer_type_get_name(ggml_backend_buffer_type_t buft) {
+    return "AMX";
+
+    GGML_UNUSED(buft);
+}
+
+static ggml_backend_buffer_t ggml_backend_amx_buffer_type_alloc_buffer(ggml_backend_buffer_type_t buft, size_t size) {
+    void * data = aligned_alloc(TENSOR_ALIGNMENT, size);
+    if (data == NULL) {
+        fprintf(stderr, "%s: failed to allocate buffer of size %zu\n", __func__, size);
+        return NULL;
+    }
+
+    return ggml_backend_buffer_init(buft, ggml_backend_amx_buffer_interface, data, size);
+}
+
+static size_t ggml_backend_amx_buffer_type_get_alignment(ggml_backend_buffer_type_t buft) {
+    return TENSOR_ALIGNMENT;
+
+    GGML_UNUSED(buft);
+}
+
+static size_t ggml_backend_amx_buffer_type_get_alloc_size(ggml_backend_buffer_type_t buft, const ggml_tensor* tensor) {
+    return ggml_backend_amx_get_alloc_size(tensor);
+
+    GGML_UNUSED(buft);
+}
+
+static bool ggml_backend_amx_buffer_type_is_host(ggml_backend_buffer_type_t buft) {
+    return false;
+
+    GGML_UNUSED(buft);
+}
+
+#define ARCH_GET_XCOMP_PERM     0x1022
+#define ARCH_REQ_XCOMP_PERM     0x1023
+#define XFEATURE_XTILECFG       17
+#define XFEATURE_XTILEDATA      18
+
+static bool ggml_amx_init() {
+#if defined(__gnu_linux__)
+    if (syscall(SYS_arch_prctl, ARCH_REQ_XCOMP_PERM, XFEATURE_XTILEDATA)) {
+        fprintf(stderr, "AMX is not ready to be used!\n");
+        return false;
+    }
+    return true;
+#elif defined(_WIN32)
+    return true;
+#endif
+}
+ggml_backend_buffer_type_t ggml_backend_amx_buffer_type() {
+    static struct ggml_backend_buffer_type ggml_backend_buffer_type_amx = {
+        /* .iface = */ {
+            /* .get_name         = */ ggml_backend_amx_buffer_type_get_name,
+            /* .alloc_buffer     = */ ggml_backend_amx_buffer_type_alloc_buffer,
+            /* .get_alignment    = */ ggml_backend_amx_buffer_type_get_alignment,
+            /* .get_max_size     = */ NULL, // defaults to SIZE_MAX
+            /* .get_alloc_size   = */ ggml_backend_amx_buffer_type_get_alloc_size,
+            /* .is_host          = */ ggml_backend_amx_buffer_type_is_host,
+        },
+        /* .device  = */ ggml_backend_reg_dev_get(ggml_backend_cpu_reg(), 0),
+        /* .context = */ NULL,
+    };
+
+    if (!ggml_amx_init()) {
+        return NULL;
+    }
+
+    return &ggml_backend_buffer_type_amx;
+}
+
+bool ggml_backend_amx_buft_is_amx(ggml_backend_buffer_type_t buft) {
+    return buft->iface.get_name == ggml_backend_amx_buffer_type_get_name;
+}
+
+bool ggml_backend_amx_device_supports_op(const struct ggml_tensor * op) {
+    // handle only 2d gemm for now
+    auto is_contiguous_2d = [](const struct ggml_tensor * t) {
+        return ggml_is_contiguous(t) && t->ne[3] == 1 && t->ne[2] == 1;
+    };
+
+    switch (op->op) {
+        case GGML_OP_NONE:
+        case GGML_OP_RESHAPE:
+        case GGML_OP_VIEW:
+        case GGML_OP_PERMUTE:
+        case GGML_OP_TRANSPOSE:
+            return true;
+
+        case GGML_OP_MUL_MAT: {
+            const struct ggml_tensor * src0 = op->src[0];
+            const struct ggml_tensor * src1 = op->src[1];
+
+            const enum ggml_type type = src0->type;
+            const int64_t ne0 = op->ne[0];
+
+            // amx kernels enables for Q4_0, Q4_1, Q8_0, F16
+            // Q4_K, Q5_K, Q6_K, IQ4_XS enabled for QK_K = 256
+            bool has_amx_kernels = qtype_has_amx_kernels(type) || (type == GGML_TYPE_F16);
+
+            bool can_use_amx =
+                is_contiguous_2d(src0) &&       // src0 must be contiguous
+                is_contiguous_2d(src1) &&       // src1 must be contiguous
+                src1->type == GGML_TYPE_F32 &&  // src1 must be float32
+                has_amx_kernels &&              // with amx kernel impls
+                ne0 % (TILE_N * 2) == 0;        // out_features is 32x
+
+            return can_use_amx;
+        }
+        default:
+            return false;
+    }
+}
+
+#endif // defined(__AMX_INT8__) && defined(__AVX512VNNI__)

ggml/src/ggml-cpu/amx/amx.h

@@ -0,0 +1,20 @@
+#include "ggml-backend.h"
+#include "ggml-cpu-impl.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if defined(__AMX_INT8__) && defined(__AVX512VNNI__)
+
+ggml_backend_buffer_type_t ggml_backend_amx_buffer_type(void);
+bool ggml_backend_amx_buft_is_amx(ggml_backend_buffer_type_t buft);
+bool ggml_backend_amx_device_supports_op(const struct ggml_tensor * op);
+void ggml_backend_amx_mul_mat(const struct ggml_compute_params * params, struct ggml_tensor * dst);
+size_t ggml_backend_amx_desired_wsize(const struct ggml_tensor * dst);
+
+#endif
+
+#ifdef __cplusplus
+}
+#endif

ggml/src/ggml-cpu/amx/common.h

@@ -1,8 +1,7 @@
 #pragma once
 
 #include "ggml.h"
-// hack until AMX is moved into the CPU backend
+#include "ggml-cpu-impl.h"
-#include "../ggml-cpu/ggml-cpu-impl.h" // <immintrin.h>
 
 #include <algorithm>
 #include <memory>
@@ -74,16 +73,24 @@ inline void parallel_for(int nth, int n, const func_t& f) {
 #endif
 }
 
+template <typename func_t>
+inline void parallel_for_ggml(const ggml_compute_params * params, int n, const func_t & f) {
+    int tbegin, tend;
+    balance211(n, params->nth, params->ith, tbegin, tend);
+    f(tbegin, tend);
+    ggml_barrier(params->threadpool); // TODO: might not always be needed
+}
+
 // quantized types that have AMX support
 inline bool qtype_has_amx_kernels(const enum ggml_type type) {
     // TODO: fix padding for vnni format
     return (type == GGML_TYPE_Q4_0) ||
-        (type == GGML_TYPE_Q4_1);
+        (type == GGML_TYPE_Q4_1) ||
-        //(type == GGML_TYPE_Q8_0) ||
+        (type == GGML_TYPE_Q8_0) ||
-        //(type == GGML_TYPE_Q4_K) ||
+        (type == GGML_TYPE_Q4_K) ||
-        //(type == GGML_TYPE_Q5_K) ||
+        (type == GGML_TYPE_Q5_K) ||
-        //(type == GGML_TYPE_Q6_K) ||
+        (type == GGML_TYPE_Q6_K) ||
-        //(type == GGML_TYPE_IQ4_XS);
+        (type == GGML_TYPE_IQ4_XS);
 }
 
 // ggml backend context

ggml/src/ggml-cpu/amx/mmq.cpp

@@ -4,8 +4,11 @@
 #pragma GCC diagnostic ignored "-Wunused-local-typedefs"
 #endif
 
+#include "amx.h"
 #include "mmq.h"
 #include "ggml-impl.h"
+#include "ggml-cpu-impl.h"
+#include "ggml-cpu-quants.h"
 #include "ggml-quants.h"
 #include <algorithm>
 #include <type_traits>
@@ -33,7 +36,7 @@
 #define ALWAYS_INLINE inline
 #endif
 
-#if defined(__AMX_INT8__)
+#if defined(__AMX_INT8__) && defined(__AVX512VNNI__)
 
 namespace {
 
@@ -496,13 +499,12 @@ inline void from_float(const float * x, char * vy, int64_t k);
 
 template <>
 inline void from_float<block_q8_0>(const float * x, char * vy, int64_t k) {
-    // FIXME: using unoptimized reference impl until moved to CPU backend
+    quantize_row_q8_0(x, (block_q8_0 *)vy, k);
-    quantize_row_q8_0_ref(x, (block_q8_0 *)vy, k);
 }
 
 template <>
 inline void from_float<block_q8_1>(const float * x, char * vy, int64_t k) {
-    quantize_row_q8_1_ref(x, (block_q8_1 *)vy, k);
+    quantize_row_q8_1(x, (block_q8_1 *)vy, k);
 }
 
 template <>
@@ -950,7 +952,7 @@ template<typename TB, typename packed_B_t = packed_B_type<TB>>
 void unpack_B(packed_B_t * RESTRICT tile, const void * RESTRICT packed_B) {
     GGML_UNUSED(tile);
     GGML_UNUSED(packed_B);
-};
+}
 
 template <>
 void unpack_B<block_q4_0>(int8_t * RESTRICT tile, const void * RESTRICT packed_B) {
@@ -2327,9 +2329,7 @@ size_t ggml_backend_amx_get_alloc_size(const struct ggml_tensor * tensor) {
 
 // pack weight to vnni format
 void ggml_backend_amx_convert_weight(struct ggml_tensor * tensor, const void * data, size_t offset, size_t size) {
-
+    GGML_ASSERT(offset == 0 && size == ggml_nbytes(tensor)); // only full tensor conversion is supported for now
-    size_t alloc_size = ggml_backend_amx_get_alloc_size(tensor);
-    GGML_ASSERT(alloc_size == size);
 
     const enum ggml_type TYPE = tensor->type;
 
@@ -2348,6 +2348,29 @@ void ggml_backend_amx_convert_weight(struct ggml_tensor * tensor, const void * d
     });
 }
 
+size_t ggml_backend_amx_desired_wsize(const struct ggml_tensor * dst) {
+    struct ggml_tensor * src0 = dst->src[0];
+
+    const enum ggml_type TYPE = src0->type;
+
+    const bool is_floating_type = TYPE == GGML_TYPE_F16;
+    if (is_floating_type) {
+        return 0;
+    }
+
+    const int M = dst->ne[1];
+    const int K = src0->ne[0];
+
+    size_t desired_wsize = 0;
+
+    GGML_DISPATCH_QTYPES(TYPE, [&] {
+        const size_t row_size_A = K / blck_size * sizeof(vec_dot_type);
+        desired_wsize = M * row_size_A;
+    });
+
+    return desired_wsize;
+}
+
 // NB: mixed dtype gemm with Advanced Matrix Extensions (Intel AMX)
 //
 // src0: weight in shape of {N, K}, quantized
@@ -2356,14 +2379,12 @@ void ggml_backend_amx_convert_weight(struct ggml_tensor * tensor, const void * d
 //
 // the function performs: dst = src1 @ src0.T
 //
-void ggml_backend_amx_mul_mat(ggml_backend_amx_context * ctx, struct ggml_tensor * dst) {
+void ggml_backend_amx_mul_mat(const ggml_compute_params * params, struct ggml_tensor * dst) {
     struct ggml_tensor * src0 = dst->src[0];
     struct ggml_tensor * src1 = dst->src[1];
 
     const enum ggml_type TYPE = src0->type;
 
-    const int n_threads = ctx->n_threads;
-
     // f16 only has avx512 kernels for now,
     // amx kernels will be added once 6th gen xeon is released.
     const bool is_floating_type = TYPE == GGML_TYPE_F16;
@@ -2379,7 +2400,7 @@ void ggml_backend_amx_mul_mat(ggml_backend_amx_context * ctx, struct ggml_tensor
         const int MB = div_up(M, BLOCK_M);
         const int NB = div_up(N, BLOCK_N);
 
-        parallel_for(n_threads, MB * NB, [&](int begin, int end) {
+        parallel_for_ggml(params, MB * NB, [&](int begin, int end) {
             GGML_DISPATCH_FLOATING_TYPES(TYPE, [&] {
                 for (int i = begin; i < end; ++i) {
                     int mb = i / NB;
@@ -2412,27 +2433,29 @@ void ggml_backend_amx_mul_mat(ggml_backend_amx_context * ctx, struct ggml_tensor
     }
 
     // pointer to work space, used convert A from float to quantized type
-    void * wdata = nullptr;
+    void * wdata = params->wdata;
 
     //TODO: performance improvement: merge quant A
-    GGML_DISPATCH_QTYPES(TYPE, [&] {
+    if (params->ith == 0) {
-        const size_t row_size_A = K / blck_size * sizeof(vec_dot_type);
+        GGML_DISPATCH_QTYPES(TYPE, [&] {
-        const size_t desired_wsize = M * row_size_A;
+            const size_t row_size_A = K / blck_size * sizeof(vec_dot_type);
-        if (ctx->work_size < desired_wsize) {
+            const size_t desired_wsize = M * row_size_A;
-            ctx->work_data.reset(new char[desired_wsize]);
+            if (params->wsize < desired_wsize) {
-            ctx->work_size = desired_wsize;
+                GGML_ABORT("insufficient work space size");
-        }
+            }
-        wdata = ctx->work_data.get();
 
-        // Q4_0, Q4_1, Q8_0 handles 1 TILE_K per blck_size
+            // Q4_0, Q4_1, Q8_0 handles 1 TILE_K per blck_size
-        // Q4_K, Q5_K, Q6_K, IQ4_XS handles 8 TILE_K per blck_size
+            // Q4_K, Q5_K, Q6_K, IQ4_XS handles 8 TILE_K per blck_size
-        GGML_ASSERT(TILE_K == blck_size || TILE_K * 8 == blck_size);
+            GGML_ASSERT(TILE_K == blck_size || TILE_K * 8 == blck_size);
 
-        const float * A_data = static_cast<const float *>(src1->data);
+            const float * A_data = static_cast<const float *>(src1->data);
-        for (int m = 0; m < M; ++m) {
+            for (int m = 0; m < M; ++m) {
-            from_float<vec_dot_type>(A_data + m * K, (char *)wdata + m * row_size_A, K);
+                from_float<vec_dot_type>(A_data + m * K, (char *)wdata + m * row_size_A, K);
-        }
+            }
-    });
+        });
+    }
+
+    ggml_barrier(params->threadpool);
 
     if (M == 1) {
         // MB = 1 and handle 8 tiles in each block
@@ -2440,7 +2463,7 @@ void ggml_backend_amx_mul_mat(ggml_backend_amx_context * ctx, struct ggml_tensor
         constexpr int BLOCK_N = TILE_N * kTilesN;
         const int NB = div_up(N, BLOCK_N);
 
-        parallel_for(n_threads, NB, [&](int begin, int end) {
+        parallel_for_ggml(params, NB, [&](int begin, int end) {
             GGML_DISPATCH_QTYPES(TYPE, [&] {
                 const int KB = K / blck_size;
                 const int TILE_SIZE = get_tile_size<type>();
@@ -2470,7 +2493,7 @@ void ggml_backend_amx_mul_mat(ggml_backend_amx_context * ctx, struct ggml_tensor
     const int MB = div_up(M, BLOCK_M);
     const int NB = div_up(N, BLOCK_N);
 
-    parallel_for(n_threads, MB * NB, [&](int begin, int end) {
+    parallel_for_ggml(params, MB * NB, [&](int begin, int end) {
         // init tile config for each thread
         ggml_tile_config_init();
 
@@ -2498,13 +2521,4 @@ void ggml_backend_amx_mul_mat(ggml_backend_amx_context * ctx, struct ggml_tensor
     });
 }
 
-#else // if defined(__AMX_INT8__)
+#endif // if defined(__AMX_INT8__) && defined(__AVX512VNNI__)
-
-void ggml_backend_amx_mul_mat(ggml_backend_amx_context * ctx, struct ggml_tensor * dst) {
-    fprintf(stderr, "GGML is not compiled with AMX support!\n");
-
-    GGML_UNUSED(ctx);
-    GGML_UNUSED(dst);
-}
-
-#endif // if defined(__AMX_INT8__)

ggml/src/ggml-cpu/amx/mmq.h

@@ -1,6 +1,5 @@
 #pragma once
 #include "common.h"
-#include <stdint.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -10,7 +9,7 @@ size_t ggml_backend_amx_get_alloc_size(const struct ggml_tensor * tensor);
 
 void ggml_backend_amx_convert_weight(struct ggml_tensor * tensor, const void * data, size_t offset, size_t size);
 
-void ggml_backend_amx_mul_mat(ggml_backend_amx_context * ctx, struct ggml_tensor * dst);
+void ggml_backend_amx_mul_mat(const struct ggml_compute_params * params, struct ggml_tensor * dst);
 
 #ifdef __cplusplus
 }

ggml/src/ggml-cpu/ggml-cpu-impl.h

@@ -15,6 +15,18 @@
 extern "C" {
 #endif
 
+struct ggml_compute_params {
+    // ith = thread index, nth = number of threads
+    int ith, nth;
+
+    // work buffer for all threads
+    size_t wsize;
+    void * wdata;
+
+    struct ggml_threadpool * threadpool;
+};
+
+
 #if defined(_MSC_VER)
 
 #define m512bh(p) p
@@ -366,6 +378,9 @@ static __m256 __lasx_xvreplfr2vr_s(float val) {
 }
 #endif
 
+// TODO: move to ggml-threading
+void ggml_barrier(struct ggml_threadpool * tp);
+
 #ifdef __cplusplus
 }
 #endif

ggml/src/ggml-cpu/ggml-cpu.c

@@ -10,6 +10,7 @@
 #include "ggml-quants.h"
 #include "ggml-cpu-quants.h"
 #include "ggml-threading.h"
+#include "amx/amx.h"
 #include "ggml.h"
 
 #if defined(_MSC_VER) || defined(__MINGW32__)
@@ -624,7 +625,7 @@ do {                                                                  \
     for (int i = 0; i < offset; ++i) {                                \
         x[i] = _mm512_add_ps(x[i], x[offset+i]);                      \
     }                                                                 \
-    res = _mm512_reduce_add_ps(x[0]);                                 \
+    res = (ggml_float) _mm512_reduce_add_ps(x[0]);                    \
 } while (0)
 
 // TODO: is this optimal ?
@@ -674,7 +675,7 @@ do {                                                              \
     for (int i = 0; i < offset; ++i) {                            \
         x[i] = _mm512_add_ps(x[i], x[offset+i]);                  \
     }                                                             \
-    res = _mm512_reduce_add_ps(x[0]);                             \
+    res = (ggml_float) _mm512_reduce_add_ps(x[0]);                \
 } while (0)
 
 #define GGML_F16_VEC                GGML_F32Cx16
@@ -685,8 +686,8 @@ do {                                                              \
 #define GGML_F16_VEC_FMA            GGML_F32Cx16_FMA
 #define GGML_F16_VEC_ADD            GGML_F32Cx16_ADD
 #define GGML_F16_VEC_MUL            GGML_F32Cx16_MUL
-#define GGML_F16_VEC_REDUCE         GGML_F32Cx16_REDUCE
 
+#define GGML_F16_VEC_REDUCE         GGML_F32Cx16_REDUCE
 #elif defined(__AVX__)
 
 #define GGML_SIMD
@@ -1178,28 +1179,28 @@ static inline void __lasx_f32cx8_store(ggml_fp16_t * x, __m256 y) {
 #define GGML_F32x4_FMA(a, b, c) __lsx_vfmadd_s(b, c, a)
 #define GGML_F32x4_ADD     __lsx_vfadd_s
 #define GGML_F32x4_MUL     __lsx_vfmul_s
-#define GGML_F32x4_REDUCE(res, x)                                 \
+#define GGML_F32x4_REDUCE(res, x)                                                     \
-{                                                                 \
+{                                                                                     \
-    int offset = GGML_F32_ARR >> 1;                               \
+    int offset = GGML_F32_ARR >> 1;                                                   \
-    for (int i = 0; i < offset; ++i) {                            \
+    for (int i = 0; i < offset; ++i) {                                                \
-        x[i] = __lsx_vfadd_s(x[i], x[offset+i]);                     \
+        x[i] = __lsx_vfadd_s(x[i], x[offset + i]);                                    \
-    }                                                             \
+    }                                                                                 \
-    offset >>= 1;                                                 \
+    offset >>= 1;                                                                     \
-    for (int i = 0; i < offset; ++i) {                            \
+    for (int i = 0; i < offset; ++i) {                                                \
-        x[i] = __lsx_vfadd_s(x[i], x[offset+i]);                     \
+        x[i] = __lsx_vfadd_s(x[i], x[offset + i]);                                    \
-    }                                                             \
+    }                                                                                 \
-    offset >>= 1;                                                 \
+    offset >>= 1;                                                                     \
-    for (int i = 0; i < offset; ++i) {                            \
+    for (int i = 0; i < offset; ++i) {                                                \
-        x[i] = __lsx_vfadd_s(x[i], x[offset+i]);                     \
+        x[i] = __lsx_vfadd_s(x[i], x[offset + i]);                                    \
-    }                                                             \
+    }                                                                                 \
-    __m128i tmp = __lsx_vsrli_d((__m128i)x[0], 32); \
+    __m128i tmp     = __lsx_vsrli_d((__m128i) x[0], 32);                              \
-    tmp = (__m128i)__lsx_vfadd_s((__m128)tmp, x[0]); \
+    tmp             = (__m128i) __lsx_vfadd_s((__m128) tmp, x[0]);                    \
-    tmp = __lsx_vpickev_w(__lsx_vldi(0), tmp); \
+    tmp             = __lsx_vpickev_w(__lsx_vldi(0), tmp);                            \
-    const __m128 t0 = __lsx_vshuf4i_w(tmp, 0x88); \
+    const __m128 t0 = __lsx_vshuf4i_w(tmp, 0x88);                                     \
-    tmp = __lsx_vsrli_d((__m128i)t0, 32); \
+    tmp             = __lsx_vsrli_d((__m128i) t0, 32);                                \
-    tmp = (__m128i)__lsx_vfadd_s((__m128)tmp, t0); \
+    tmp             = (__m128i) __lsx_vfadd_s((__m128) tmp, t0);                      \
-    tmp = __lsx_vpickev_w(__lsx_vldi(0), tmp); \
+    tmp             = __lsx_vpickev_w(__lsx_vldi(0), tmp);                            \
-    res = (ggml_float) __lsx_vpickve2gr_w(__lsx_vshuf4i_w(tmp, 0x88), 0);        \
+    res             = (ggml_float) __lsx_vpickve2gr_w(__lsx_vshuf4i_w(tmp, 0x88), 0); \
 }
 
 #define GGML_F32_VEC        GGML_F32x4
@@ -1367,31 +1368,15 @@ struct ggml_compute_state {
     int ith;
 };
 
-struct ggml_compute_params {
-    // ith = thread index, nth = number of threads
-    int ith, nth;
-
-    // work buffer for all threads
-    size_t wsize;
-    void * wdata;
-
-    struct ggml_threadpool * threadpool;
-};
-
 //
 // fundamental operations
 //
 
 inline static void ggml_vec_set_i8(const int n, int8_t * x, const int8_t v) { for (int i = 0; i < n; ++i) x[i] = v; }
-
 inline static void ggml_vec_set_i16(const int n, int16_t * x, const int16_t v) { for (int i = 0; i < n; ++i) x[i] = v; }
-
 inline static void ggml_vec_set_i32(const int n, int32_t * x, const int32_t v) { for (int i = 0; i < n; ++i) x[i] = v; }
-
 inline static void ggml_vec_set_f16(const int n, ggml_fp16_t * x, const int32_t v) { for (int i = 0; i < n; ++i) x[i] = v; }
-
 inline static void ggml_vec_set_bf16(const int n, ggml_bf16_t * x, const ggml_bf16_t v) { for (int i = 0; i < n; ++i) x[i] = v; }
-
 inline static void ggml_vec_add_f32 (const int n, float * z, const float * x, const float * y) { for (int i = 0; i < n; ++i) z[i]  = x[i] + y[i]; }
 inline static void ggml_vec_add1_f32(const int n, float * z, const float * x, const float   v) { for (int i = 0; i < n; ++i) z[i]  = x[i] + v;    }
 inline static void ggml_vec_acc_f32 (const int n, float * y, const float * x)                  { for (int i = 0; i < n; ++i) y[i] += x[i];        }
@@ -2286,7 +2271,7 @@ struct ggml_state {
 
 static struct ggml_state g_state = {0};
 
-static void ggml_barrier(struct ggml_threadpool * tp) {
+void ggml_barrier(struct ggml_threadpool * tp) {
     int n_threads = atomic_load_explicit(&tp->n_threads_cur, memory_order_relaxed);
     if (n_threads == 1) {
         return;
@@ -7455,6 +7440,13 @@ static void ggml_compute_forward_mul_mat(
         type = (enum ggml_type)(intptr_t)src0->extra;
     }
 
+#if defined(__AMX_INT8__) && defined(__AVX512VNNI__)
+    if (src0->buffer && ggml_backend_amx_buft_is_amx(src0->buffer->buft)) {
+        ggml_backend_amx_mul_mat(params, dst);
+        return;
+    }
+#endif
+
     enum ggml_type           const vec_dot_type         = type_traits_cpu[type].vec_dot_type;
     ggml_from_float_t        const from_float           = type_traits_cpu[vec_dot_type].from_float;
     ggml_from_float_to_mat_t const from_float_to_mat    = type_traits_cpu[vec_dot_type].from_float_to_mat;
@@ -13294,10 +13286,16 @@ struct ggml_cplan ggml_graph_plan(
                 } break;
             case GGML_OP_MUL_MAT:
                 {
+#if defined(__AMX_INT8__) && defined(__AVX512VNNI__)
+                    if (node->src[0]->buffer && ggml_backend_amx_buft_is_amx(node->src[0]->buffer->buft)) {
+                        cur = ggml_backend_amx_desired_wsize(node);
+                    }
+#endif
                     const enum ggml_type vec_dot_type = type_traits_cpu[node->src[0]->type].vec_dot_type;
 
                     if (node->src[1]->type != vec_dot_type) {
-                        cur = ggml_row_size(vec_dot_type, ggml_nelements(node->src[1]));
+                        size_t cur2 = ggml_row_size(vec_dot_type, ggml_nelements(node->src[1]));
+                        cur = MAX(cur, cur2);
                     }
                 } break;
             case GGML_OP_MUL_MAT_ID:

ggml/src/ggml-cpu/ggml-cpu.cpp

@@ -3,6 +3,7 @@
 #include "ggml-cpu.h"
 #include "ggml-cpu-aarch64.h"
 #include "ggml-impl.h"
+#include "amx/amx.h"
 #include <cctype>
 #include <string>
 #include <vector>
@@ -134,12 +135,16 @@ static ggml_backend_buffer_type_t * ggml_backend_cpu_get_extra_bufts(ggml_backen
     static std::vector<ggml_backend_buffer_type_t> bufts = []() {
         std::vector<ggml_backend_buffer_type_t> bufts;
 
-#ifdef GGML_USE_CPU_HBM
+#if defined(__AMX_INT8__) && defined(__AVX512VNNI__)
-        bufts.push_back(ggml_backend_cpu_hbm_buffer_type());
+        if (ggml_backend_amx_buffer_type()) {
+            bufts.push_back(ggml_backend_amx_buffer_type());
+        }
 #endif
 
 #ifdef GGML_USE_CPU_AARCH64
-        bufts.push_back(ggml_backend_cpu_aarch64_buffer_type());
+        if (ggml_backend_cpu_aarch64_buffer_type()) {
+            bufts.push_back(ggml_backend_cpu_aarch64_buffer_type());
+        }
 #endif
 
         bufts.push_back(NULL);
@@ -456,12 +461,27 @@ static bool ggml_backend_cpu_device_supports_op(ggml_backend_dev_t dev, const st
     const struct ggml_tensor * src0 = op->src[0];
     const struct ggml_tensor * src1 = op->src[1];
 
+    if (op->op == GGML_OP_NONE || op->op == GGML_OP_RESHAPE || op->op == GGML_OP_VIEW || op->op == GGML_OP_PERMUTE || op->op == GGML_OP_TRANSPOSE) {
+        return true;
+    }
+
     if (src0 && src0->buffer && ggml_backend_cpu_buft_is_aarch64(src0->buffer->buft)) {
         if (op->op != GGML_OP_MUL_MAT || src0->type == ggml_aarch64_get_optimal_repack_type(src0)) {
             return false;
         }
     }
 
+#if defined(__AMX_INT8__) && defined(__AVX512VNNI__)
+    if (src0 && src0->buffer && ggml_backend_amx_buft_is_amx(src0->buffer->buft)) {
+        return ggml_backend_amx_device_supports_op(op);
+    }
+    for (int i = 1; i < GGML_MAX_SRC; i++) {
+        if (op->src[i] && op->src[i]->buffer && ggml_backend_amx_buft_is_amx(op->src[i]->buffer->buft)) {
+            return false;
+        }
+    }
+#endif
+
     for (int i = 1; i < GGML_MAX_SRC; i++) {
         if (op->src[i] && op->src[i]->buffer && ggml_backend_cpu_buft_is_aarch64(op->src[i]->buffer->buft)) {
             return false;
@@ -491,7 +511,13 @@ static bool ggml_backend_cpu_device_supports_op(ggml_backend_dev_t dev, const st
 }
 
 static bool ggml_backend_cpu_device_supports_buft(ggml_backend_dev_t dev, ggml_backend_buffer_type_t buft) {
-    return ggml_backend_buft_is_host(buft) || ggml_backend_cpu_buft_is_aarch64(buft);
+    bool supported = ggml_backend_buft_is_host(buft) || ggml_backend_cpu_buft_is_aarch64(buft);
+
+#if defined(__AMX_INT8__) && defined(__AVX512VNNI__)
+    supported = supported || ggml_backend_amx_buft_is_amx(buft);
+#endif
+
+    return supported;
 
     GGML_UNUSED(dev);
 }

ggml/src/ggml-cpu/llamafile/sgemm.cpp

@@ -50,8 +50,7 @@
 
 #include "sgemm.h"
 #include "ggml-impl.h"
-// hack until moved into the CPU backend
+#include "ggml-cpu-impl.h"
-#include "../ggml-cpu-impl.h"
 #include "ggml-quants.h"
 
 #ifdef _MSC_VER

ggml/src/ggml-impl.h

@@ -30,11 +30,13 @@
 extern "C" {
 #endif
 
-#undef MIN
+#ifndef MIN
-#undef MAX
+#    define MIN(a, b) ((a) < (b) ? (a) : (b))
+#endif
 
-#define MIN(a, b) ((a) < (b) ? (a) : (b))
+#ifndef MAX
-#define MAX(a, b) ((a) > (b) ? (a) : (b))
+#    define MAX(a, b) ((a) > (b) ? (a) : (b))
+#endif
 
 // required for mmap as gguf only guarantees 32-byte alignment
 #define TENSOR_ALIGNMENT 32

ggml/src/ggml-vulkan/vulkan-shaders/CMakeLists.txt

@@ -3,5 +3,5 @@ find_package (Threads REQUIRED)
 set(TARGET vulkan-shaders-gen)
 add_executable(${TARGET} vulkan-shaders-gen.cpp)
 install(TARGETS ${TARGET} RUNTIME)
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)
 target_link_libraries(vulkan-shaders-gen PUBLIC Threads::Threads)

pocs/vdot/CMakeLists.txt

@@ -1,9 +1,9 @@
 set(TARGET llama-vdot)
 add_executable(${TARGET} vdot.cpp)
 target_link_libraries(${TARGET} PRIVATE common llama ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)
 
 set(TARGET llama-q8dot)
 add_executable(${TARGET} q8dot.cpp)
 target_link_libraries(${TARGET} PRIVATE common llama ${CMAKE_THREAD_LIBS_INIT})
-target_compile_features(${TARGET} PRIVATE cxx_std_11)
+target_compile_features(${TARGET} PRIVATE cxx_std_17)

src/CMakeLists.txt

@@ -25,7 +25,7 @@ add_library(llama
             )
 
 target_include_directories(llama PUBLIC . ../include)
-target_compile_features   (llama PUBLIC cxx_std_11) # don't bump
+target_compile_features   (llama PUBLIC cxx_std_17) # don't bump
 
 target_link_libraries(llama PUBLIC ggml)
 

src/unicode.cpp

@@ -201,7 +201,18 @@ static std::unordered_map<std::string, uint8_t> unicode_utf8_to_byte_map() {
 }
 
 static inline std::wstring unicode_wstring_from_utf8(const std::string & s) {
+#if defined(__clang__)
+    // disable C++17 deprecation warning for std::codecvt_utf8
+#    pragma clang diagnostic push
+#    pragma clang diagnostic ignored "-Wdeprecated-declarations"
+#endif
+
     std::wstring_convert<std::codecvt_utf8<wchar_t>> conv;
+
+#if defined(__clang__)
+#    pragma clang diagnostic pop
+#endif
+
     return conv.from_bytes(s);
 }
 

tests/test-sampling.cpp

@@ -284,7 +284,7 @@ static void test_perf() {
 
     data.reserve(n_vocab);
     for (int i = 0; i < n_vocab; i++) {
-        const float logit = 2.0f*((float)(rand())/RAND_MAX - 0.5f);
+        const float logit = 2.0f*((double)(rand())/RAND_MAX - 0.5);
         data.emplace_back(llama_token_data{i, logit, 0.0f});
     }