# Build rules for ROCm runner
#
# Note: at present we only support a single ROCm version (whichever is default on the build system)
# unlike CUDA where we'll build both a v11 and v12 variant.

include make/common-defs.make

HIP_ARCHS_COMMON := gfx900 gfx940 gfx941 gfx942 gfx1010 gfx1012 gfx1030 gfx1100 gfx1101 gfx1102
HIP_ARCHS_LINUX := gfx906:xnack- gfx908:xnack- gfx90a:xnack+ gfx90a:xnack-

ifeq ($(OS),windows)
	GPU_LIB_DIR_WIN := $(shell cygpath -m -s "$(HIP_PATH)/bin")
	CGO_EXTRA_LDFLAGS_WIN := -L$(shell cygpath -m -s "$(HIP_PATH)/lib")
	GPU_COMPILER_WIN := $(HIP_PATH)/bin/hipcc.bin.exe
	GPU_COMPILER:=$(GPU_COMPILER_WIN)
else ifeq ($(OS),linux)
	GPU_LIB_DIR_LINUX := $(HIP_PATH)/lib
	GPU_COMPILER_LINUX := $(shell X=$$(which hipcc 2>/dev/null) && echo $$X)
	GPU_COMPILER:=$(GPU_COMPILER_LINUX)
	ROCM_TRANSITIVE_LIBS_INITIAL = $(sort $(shell ldd $(GPU_LIBS) | grep "=>" | cut -f2 -d= | cut -f2 -d' '  | grep -e rocm -e amdgpu -e libtinfo -e libnuma -e libelf))
	GPU_TRANSITIVE_LIBS = $(sort $(shell readlink -f $(ROCM_TRANSITIVE_LIBS_INITIAL)) $(ROCM_TRANSITIVE_LIBS_INITIAL))
endif

# TODO future multi-variant support for ROCm
# ROCM_VERSION = $(subst $(space),.,$(wordlist 1,2,$(subst .,$(space),$(word 3,$(subst -,$(space),$(filter HIP version: %,$(shell $(GPU_COMPILER) --version)))))))
# ifneq (,$(ROCM_VERSION))
# 	GPU_RUNNER_VARIANT = _v$(ROCM_VERSION)
# endif

GPU_RUNNER_GO_TAGS := rocm
GPU_RUNNER_NAME := rocm$(GPU_RUNNER_VARIANT)
GPU_RUNNER_DRIVER_LIB_LINK := -lamdhip64
GPU_RUNNER_LIBS_SHORT := hipblas rocblas
GPU_PATH_ROOT_WIN=$(dir $(GPU_LIB_DIR_WIN))
GPU_PATH_ROOT_LINUX=$(dir $(GPU_LIB_DIR_LINUX))
GPU_COMPILER_CFLAGS_WIN = $(CFLAGS) -D_WIN32_WINNT=0x602
GPU_COMPILER_CFLAGS_LINUX = $(CFLAGS) -fPIC -D_GNU_SOURCE
GPU_COMPILER_CXXFLAGS_WIN = $(CXXFLAGS) -D_WIN32_WINNT=0x602
GPU_COMPILER_CXXFLAGS_LINUX = $(CXXFLAGS) -fPIC -D_GNU_SOURCE

GPU_LIBS = $(wildcard $(addsuffix .$(SHARED_EXT),$(addprefix $(GPU_LIB_DIR)/$(SHARED_PREFIX),$(GPU_RUNNER_LIBS_SHORT))))
ifeq ($(OS),windows)
	ROCM_DIST_DEPS_DIR = $(abspath $(SRC_DIR)/../dist/$(OS)-$(ARCH))/lib/ollama
else ifeq ($(OS),linux)
	ROCM_DIST_DEPS_DIR = $(abspath $(SRC_DIR)/../dist/$(OS)-$(ARCH)-rocm)/lib/ollama
endif
GPU_DIST_DEPS_LIBS= $(sort $(addprefix $(ROCM_DIST_DEPS_DIR)/,$(notdir $(GPU_LIBS)) $(notdir $(GPU_TRANSITIVE_LIBS))))
ROCBLAS_DIST_DEP_MANIFEST = $(ROCM_DIST_DEPS_DIR)/rocblas/library/TensileManifest.txt

ifeq ($(OS),linux)
	GPU_COMPILER_FPIC := -fPIC -Wno-unused-function -std=gnu++11
	GPU_RUNNER_ARCH_FLAGS := $(foreach arch, $(HIP_ARCHS_COMMON) $(HIP_ARCHS_LINUX), --offload-arch=$(arch))
else ifeq ($(OS),windows)
	GPU_COMPILER_FPIC := -Xclang --dependent-lib=msvcrt
	GPU_RUNNER_ARCH_FLAGS := $(foreach arch, $(HIP_ARCHS_COMMON), --offload-arch=$(arch))
endif

GPU_COMPILER_CUFLAGS = \
	$(GPU_COMPILER_FPIC) \
	$(addprefix -m,$(GPU_RUNNER_CPU_FLAGS)) \
	-mf16c \
	-mfma \
	-parallel-jobs=2 \
	-c \
	-O3 \
	-DGGML_USE_CUDA \
	-DGGML_BUILD=1 \
	-DGGML_SHARED=1 \
	-DGGML_CUDA_DMMV_X=32 \
	-DGGML_CUDA_MMV_Y=1 \
	-DGGML_SCHED_MAX_COPIES=4 \
	-DGGML_USE_HIPBLAS \
	-DGGML_USE_LLAMAFILE \
	-DHIP_FAST_MATH \
	-D__HIP_PLATFORM_AMD__=1 \
	-D__HIP_ROCclr__=1 \
	-DNDEBUG \
	-DK_QUANTS_PER_ITERATION=2 \
	-D_CRT_SECURE_NO_WARNINGS \
	-D_GNU_SOURCE \
	-D_XOPEN_SOURCE=600 \
	-DUSE_PROF_API=1 \
	-std=gnu++14 \
	-x hip \
	-mllvm=-amdgpu-early-inline-all=true \
	-mllvm=-amdgpu-function-calls=false \
	-Wno-expansion-to-defined \
	-Wno-invalid-noreturn \
	-Wno-ignored-attributes \
	-Wno-pass-failed \
	-Wno-deprecated-declarations \
	-Wno-unused-result \
	-I.

# Workaround buggy P2P copy on some windows multi-GPU setups
# This workaround breaks linux systems with small system RAM, so only enable on windows
ifeq ($(OS),windows)
	GPU_COMPILER_CUFLAGS += -DGGML_CUDA_NO_PEER_COPY=1
endif

include make/gpu.make

# Adjust the rules from gpu.make to handle the ROCm dependencies properly
$(RUNNERS_DIST_DIR)/$(GPU_RUNNER_NAME)/ollama_llama_server$(EXE_EXT): $(ROCBLAS_DIST_DEP_MANIFEST)
$(ROCBLAS_DIST_DEP_MANIFEST):
	@-mkdir -p $(dir $@)
	@echo "Copying rocblas library..."
	cd $(GPU_LIB_DIR)/rocblas/library/ && tar cf - . | (cd $(dir $@) && tar xf - )
	@echo "rocblas library copy complete"