Preliminary support via HSA

CMakeLists.txt

@@ -7,17 +7,18 @@ project(gpufetch CXX)
 set(SRC_DIR "src")
 set(COMMON_DIR "${SRC_DIR}/common")
 set(CUDA_DIR "${SRC_DIR}/cuda")
+set(HSA_DIR "${SRC_DIR}/hsa")
 set(INTEL_DIR "${SRC_DIR}/intel")
 
+# Enable Intel backend by default
 if(NOT DEFINED ENABLE_INTEL_BACKEND)
     set(ENABLE_INTEL_BACKEND true)
 endif()
 
-if(NOT DEFINED ENABLE_CUDA_BACKEND OR ENABLE_CUDA_BACKEND)
+if(ENABLE_CUDA_BACKEND)
   check_language(CUDA)
   if(CMAKE_CUDA_COMPILER)
     enable_language(CUDA)
-    set(ENABLE_CUDA_BACKEND true)
     # Must link_directories early so add_executable(gpufetch ...) gets the right directories
     link_directories(cuda_backend ${CMAKE_CUDA_COMPILER_TOOLKIT_ROOT}/targets/x86_64-linux/lib)
   else()
@@ -25,6 +26,33 @@ if(NOT DEFINED ENABLE_CUDA_BACKEND OR ENABLE_CUDA_BACKEND)
   endif()
 endif()
 
+if(ENABLE_HSA_BACKEND)
+  # TODO: Needs rocm-cmake, what if its not insalled?
+  find_package(ROCmCMakeBuildTools)
+  if (ROCmCMakeBuildTools_FOUND)
+    find_package(hsa-runtime64 1.0 REQUIRED)    
+    link_directories(hsa_backend hsa-runtime64::hsa-runtime64)
+
+    # Find HSA headers (ROCm does not seem to provide this, which is extremely frustrating)
+    find_path(HSA_INCLUDE_DIR
+      NAMES hsa/hsa.h
+      HINTS
+          $ENV{ROCM_PATH}/include     # allow users override via env variable
+          /opt/rocm/include           # common default path
+          /usr/include
+          /usr/local/include
+    )
+
+    if(NOT HSA_INCLUDE_DIR)
+      message(STATUS "${BoldYellow}HSA not found, disabling HSA backend${ColorReset}")
+      set(ENABLE_HSA_BACKEND false)
+    endif()
+  else()
+    set(ENABLE_HSA_BACKEND false)
+    message(STATUS "${BoldYellow}ROCm not found${ColorReset}")
+  endif()
+endif()
+
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/cmake")
 find_package(PCIUTILS)
 if(NOT ${PCIUTILS_FOUND})
@@ -50,8 +78,9 @@ else()
 endif()
 
 add_executable(gpufetch ${COMMON_DIR}/main.cpp ${COMMON_DIR}/args.cpp ${COMMON_DIR}/gpu.cpp ${COMMON_DIR}/pci.cpp ${COMMON_DIR}/sort.cpp ${COMMON_DIR}/global.cpp ${COMMON_DIR}/printer.cpp ${COMMON_DIR}/master.cpp ${COMMON_DIR}/uarch.cpp)
-set(SANITY_FLAGS "-Wfloat-equal -Wshadow -Wpointer-arith")
-set(CMAKE_CXX_FLAGS "${SANITY_FLAGS} -Wall -Wextra -pedantic -fstack-protector-all -pedantic -std=c++11")
+set(SANITY_FLAGS -Wfloat-equal -Wshadow -Wpointer-arith -Wall -Wextra -pedantic -fstack-protector-all -pedantic)
+target_compile_features(gpufetch PRIVATE cxx_std_11)
+target_compile_options(gpufetch PRIVATE ${SANITY_FLAGS})
 
 if(ENABLE_INTEL_BACKEND)
   target_compile_definitions(gpufetch PUBLIC BACKEND_INTEL)
@@ -94,6 +123,22 @@ if(ENABLE_CUDA_BACKEND)
   target_link_libraries(gpufetch cuda_backend)
 endif()
 
+if(ENABLE_HSA_BACKEND)
+  target_compile_definitions(gpufetch PUBLIC BACKEND_HSA)
+
+  add_library(hsa_backend STATIC ${HSA_DIR}/hsa.cpp)
+
+  if(NOT ${PCIUTILS_FOUND})
+    add_dependencies(hsa_backend pciutils)
+  endif()
+
+  target_include_directories(hsa_backend PRIVATE "${HSA_INCLUDE_DIR}")
+  message(STATUS "HSA_INCLUDE_DIR = ${ROCM_PATH}")
+
+  target_link_libraries(hsa_backend PRIVATE hsa-runtime64::hsa-runtime64)
+  target_link_libraries(gpufetch hsa_backend)
+endif()
+
 target_link_libraries(gpufetch pci z)
 install(TARGETS gpufetch DESTINATION bin)
 
@@ -115,6 +160,11 @@ if(ENABLE_CUDA_BACKEND)
 else()
   message(STATUS "CUDA backend: ${BoldRed}OFF${ColorReset}")
 endif()
+if(ENABLE_HSA_BACKEND)
+  message(STATUS "HSA backend: ${BoldGreen}ON${ColorReset}")
+else()
+  message(STATUS "HSA backend: ${BoldRed}OFF${ColorReset}")
+endif()
 if(ENABLE_INTEL_BACKEND)
   message(STATUS "Intel backend: ${BoldGreen}ON${ColorReset}")
 else()

build.sh

@@ -23,6 +23,8 @@ fi
 # In case you want to explicitely disable a backend, you can:
 # Disable CUDA backend:
 # cmake -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DENABLE_CUDA_BACKEND=OFF ..
+# Disable HSA backend:
+# cmake -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DENABLE_HSA_BACKEND=OFF ..
 # Disable Intel backend:
 # cmake -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DENABLE_INTEL_BACKEND=OFF ..
 

src/common/master.cpp

@@ -7,6 +7,7 @@
 #include "master.hpp"
 #include "args.hpp"
 #include "../cuda/cuda.hpp"
+#include "../hsa/hsa.hpp"
 #include "../intel/intel.hpp"
 
 #define MAX_GPUS 1000
@@ -35,6 +36,18 @@ struct gpu_list* get_gpu_list() {
   list->num_gpus += idx;
 #endif
 
+#ifdef BACKEND_HSA
+  bool valid = true;
+
+  while(valid) {
+    list->gpus[idx] = get_gpu_info_hsa(devices, idx);
+    if(list->gpus[idx] != NULL) idx++;
+    else valid = false;
+  }
+
+  list->num_gpus += idx;
+#endif
+
 #ifdef BACKEND_INTEL
   list->gpus[idx] = get_gpu_info_intel(devices);
   if(list->gpus[idx] != NULL) list->num_gpus++;
@@ -69,6 +82,13 @@ void print_enabled_backends() {
   printf("%sOFF%s\n", C_FG_RED, C_RESET);
 #endif
 
+  printf("- HSA backend:   ");
+#ifdef BACKEND_HSA
+  printf("%sON%s\n", C_FG_GREEN, C_RESET);
+#else
+  printf("%sOFF%s\n", C_FG_RED, C_RESET);
+#endif
+
   printf("- Intel backend: ");
 #ifdef BACKEND_INTEL
   printf("%sON%s\n", C_FG_GREEN, C_RESET);

src/hsa/hsa.cpp

@@ -0,0 +1,60 @@
+#include <iostream>
+#include <hsa/hsa.h>
+#include <hsa/hsa_ext_amd.h>
+
+#include <cstring>
+#include <cstdlib>
+#include <cstdio>
+
+#include "hsa.hpp"
+#include "../common/pci.hpp"
+#include "../common/global.hpp"
+#include "../common/uarch.hpp"
+
+struct gpu_info* get_gpu_info_hsa(struct pci_dev *devices, int gpu_idx) {
+  struct gpu_info* gpu = (struct gpu_info*) emalloc(sizeof(struct gpu_info));
+  gpu->pci = NULL;
+  gpu->idx = gpu_idx;
+
+  if(gpu->idx < 0) {
+    printErr("GPU index must be equal or greater than zero");
+    return NULL;
+  }
+
+  hsa_status_t status;
+
+  // Initialize the HSA runtime
+  status = hsa_init();
+  if (status != HSA_STATUS_SUCCESS) {
+    printErr("Failed to initialize HSA runtime");
+    return NULL;
+  }
+
+  // Lambda for iterating over agents
+  auto agent_callback = [](hsa_agent_t agent, void* data) -> hsa_status_t {
+    hsa_device_type_t type;
+    if (hsa_agent_get_info(agent, HSA_AGENT_INFO_DEVICE, &type) != HSA_STATUS_SUCCESS)
+      return HSA_STATUS_SUCCESS;
+
+    if (type == HSA_DEVICE_TYPE_GPU) {
+      char name[64] = {0};
+      if (hsa_agent_get_info(agent, HSA_AGENT_INFO_NAME, name) == HSA_STATUS_SUCCESS) {
+        std::cout << name << std::endl;
+      }
+    }
+
+    return HSA_STATUS_SUCCESS;
+  };
+
+  // Iterate over all agents in the system
+  status = hsa_iterate_agents(agent_callback, nullptr);
+  if (status != HSA_STATUS_SUCCESS) {
+    std::cerr << "Failed to iterate HSA agents.\n";
+    hsa_shut_down();
+    return NULL;
+  }
+
+  // Shut down the HSA runtime
+  hsa_shut_down();
+  return NULL;
+}

src/hsa/hsa.hpp

@@ -0,0 +1,9 @@
+#ifndef __HSA_GPU__
+#define __HSA_GPU__
+
+#include "../common/gpu.hpp"
+// #define CUDA_DRIVER_START_WARNING "Waiting for CUDA driver to start..."
+
+struct gpu_info* get_gpu_info_hsa(struct pci_dev *devices, int gpu_idx);
+
+#endif