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##===----------------------------------------------------------------------===##
#
# The LLVM Compiler Infrastructure
#
# This file is dual licensed under the MIT and the University of Illinois Open
# Source Licenses. See LICENSE.txt for details.
#
##===----------------------------------------------------------------------===##
#
# Build a plugin for an AMDGPU machine if available.
#
##===----------------------------------------------------------------------===##
################################################################################
set(LIBOMPTARGET_BUILD_AMDGPU_PLUGIN TRUE CACHE BOOL
"Whether to build AMDGPU plugin")
if (NOT LIBOMPTARGET_BUILD_AMDGPU_PLUGIN)
libomptarget_say("Not building AMDGPU offloading plugin: LIBOMPTARGET_BUILD_AMDGPU_PLUGIN is false")
return()
endif()
# as of rocm-3.7, hsa is installed with cmake packages and kmt is found via hsa
find_package(hsa-runtime64 QUIET 1.2.0 HINTS ${CMAKE_INSTALL_PREFIX} PATHS /opt/rocm)
if(NOT LIBOMPTARGET_DEP_LIBELF_FOUND)
libomptarget_say("Not building AMDGPU plugin: LIBELF not found")
return()
endif()
if(NOT CMAKE_SYSTEM_PROCESSOR MATCHES "(x86_64)|(ppc64le)|(aarch64)$" AND CMAKE_SYSTEM_NAME MATCHES "Linux")
libomptarget_say("Not building AMDGPU plugin: only support AMDGPU in Linux x86_64, ppc64le, or aarch64 hosts")
return()
endif()
################################################################################
# Define the suffix for the runtime messaging dumps.
add_definitions(-DTARGET_NAME=AMDGPU)
if(CMAKE_SYSTEM_PROCESSOR MATCHES "(ppc64le)|(aarch64)$")
add_definitions(-DLITTLEENDIAN_CPU=1)
endif()
if(CMAKE_BUILD_TYPE MATCHES Debug)
add_definitions(-DDEBUG)
endif()
set(LIBOMPTARGET_DLOPEN_LIBHSA OFF)
option(LIBOMPTARGET_FORCE_DLOPEN_LIBHSA "Build with dlopened libhsa" ${LIBOMPTARGET_DLOPEN_LIBHSA})
if (${hsa-runtime64_FOUND} AND NOT LIBOMPTARGET_FORCE_DLOPEN_LIBHSA)
libomptarget_say("Building AMDGPU plugin linked against libhsa")
set(LIBOMPTARGET_EXTRA_SOURCE)
set(LIBOMPTARGET_DEP_LIBRARIES hsa-runtime64::hsa-runtime64)
else()
libomptarget_say("Building AMDGPU plugin for dlopened libhsa")
include_directories(dynamic_hsa)
set(LIBOMPTARGET_EXTRA_SOURCE dynamic_hsa/hsa.cpp)
set(LIBOMPTARGET_DEP_LIBRARIES)
endif()
if(CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
# On FreeBSD, the 'environ' symbol is undefined at link time, but resolved by
# the dynamic linker at runtime. Therefore, allow the symbol to be undefined
# when creating a shared library.
set(LDFLAGS_UNDEFINED "-Wl,--allow-shlib-undefined")
else()
set(LDFLAGS_UNDEFINED "-Wl,-z,defs")
endif()
add_llvm_library(omptarget.rtl.amdgpu SHARED
impl/impl.cpp
impl/interop_hsa.cpp
impl/data.cpp
impl/get_elf_mach_gfx_name.cpp
impl/system.cpp
impl/msgpack.cpp
src/rtl.cpp
${LIBOMPTARGET_EXTRA_SOURCE}
ADDITIONAL_HEADER_DIRS
${LIBOMPTARGET_INCLUDE_DIR}
${CMAKE_CURRENT_SOURCE_DIR}/impl
LINK_LIBS
PRIVATE
elf_common
${LIBOMPTARGET_DEP_LIBRARIES}
${CMAKE_DL_LIBS}
${LIBOMPTARGET_DEP_LIBELF_LIBRARIES}
${OPENMP_PTHREAD_LIB}
"-Wl,--version-script=${CMAKE_CURRENT_SOURCE_DIR}/../exports"
${LDFLAGS_UNDEFINED}
NO_INSTALL_RPATH
)
add_dependencies(omptarget.rtl.amdgpu omptarget.devicertl.amdgpu)
target_include_directories(
omptarget.rtl.amdgpu
PRIVATE
${LIBOMPTARGET_INCLUDE_DIR}
${CMAKE_CURRENT_SOURCE_DIR}/impl
)
# Install plugin under the lib destination folder.
install(TARGETS omptarget.rtl.amdgpu LIBRARY DESTINATION "${OPENMP_INSTALL_LIBDIR}")
set_target_properties(omptarget.rtl.amdgpu PROPERTIES
INSTALL_RPATH "$ORIGIN" BUILD_RPATH "$ORIGIN:${CMAKE_CURRENT_BINARY_DIR}/..")
# in case of amdgcn, skip running tests if amdgpu-arch was not built or fails
if (NOT TARGET amdgpu-arch)
libomptarget_say("Not generating amdgcn test targets as amdgpu-arch is not found")
return()
endif()
get_property(AMDGPU_ARCH_COMMAND TARGET amdgpu-arch PROPERTY LOCATION)
execute_process(COMMAND ${AMDGPU_ARCH_COMMAND} RESULT_VARIABLE amdgpu_arch_result
OUTPUT_VARIABLE amdgpu_arch_output)
if (${amdgpu_arch_result})
libomptarget_say("Not generating amdgcn test targets as amdgpu-arch exited with ${amdgpu_arch_result}")
else()
# Report to the parent scope that we are building a plugin for amdgpu
set(LIBOMPTARGET_SYSTEM_TARGETS "${LIBOMPTARGET_SYSTEM_TARGETS} amdgcn-amd-amdhsa amdgcn-amd-amdhsa-oldDriver" PARENT_SCOPE)
set(LIBOMPTARGET_SYSTEM_TARGETS "${LIBOMPTARGET_SYSTEM_TARGETS} amdgcn-amd-amdhsa amdgcn-amd-amdhsa-LTO" PARENT_SCOPE)
list(APPEND LIBOMPTARGET_TESTED_PLUGINS "omptarget.rtl.amdgpu")
set(LIBOMPTARGET_TESTED_PLUGINS "${LIBOMPTARGET_TESTED_PLUGINS}" PARENT_SCOPE)
endif()
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