radv: Return hang status from radv_check_gpu_hangs()

Return VK_ERROR_DEVICE_LOST if a hang is detected. This is necessary
because the application needs to know if it should call
vkGetDeviceFaultInfoEXT().

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29921>

src/amd/vulkan/radv_debug.c

@@ -706,7 +706,7 @@ enum radv_device_fault_chunk {
    RADV_DEVICE_FAULT_CHUNK_COUNT,
 };
 
-void
+VkResult
 radv_check_gpu_hangs(struct radv_queue *queue, const struct radv_winsys_submit_info *submit_info)
 {
    enum amd_ip_type ring;
@@ -715,7 +715,7 @@ radv_check_gpu_hangs(struct radv_queue *queue, const struct radv_winsys_submit_i
 
    bool hang_occurred = radv_gpu_hang_occurred(queue, ring);
    if (!hang_occurred)
-      return;
+      return VK_SUCCESS;
 
    fprintf(stderr, "radv: GPU hang detected...\n");
 
@@ -849,6 +849,7 @@ radv_check_gpu_hangs(struct radv_queue *queue, const struct radv_winsys_submit_i
    }
 
 #endif
+   return VK_ERROR_DEVICE_LOST;
 }
 
 void

src/amd/vulkan/radv_debug.h

@@ -85,7 +85,7 @@ enum {
 bool radv_init_trace(struct radv_device *device);
 void radv_finish_trace(struct radv_device *device);
 
-void radv_check_gpu_hangs(struct radv_queue *queue, const struct radv_winsys_submit_info *submit_info);
+VkResult radv_check_gpu_hangs(struct radv_queue *queue, const struct radv_winsys_submit_info *submit_info);
 
 void radv_print_spirv(const char *data, uint32_t size, FILE *fp);
 

src/amd/vulkan/radv_queue.c

@@ -2162,7 +2162,7 @@ radv_queue_submit_normal(struct radv_queue *queue, struct vk_queue_submit *submi
          goto fail;
 
       if (radv_device_fault_detection_enabled(device)) {
-         radv_check_gpu_hangs(queue, &submit);
+         result = radv_check_gpu_hangs(queue, &submit);
       }
 
       if (device->tma_bo) {