Ported from similar code in radeon.
Reviewed-by: Junwei Zhang Jerry.Zhang@amd.com Reviewed-by: Christian König christian.koenig@amd.com Reviewed-by: Ken Wang Qingqing.Wang@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com --- drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c | 20 +++++++++++++++++++- 1 file changed, 19 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c index cac03e7..697fb45 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c @@ -806,15 +806,33 @@ static int amdgpu_debugfs_fence_info(struct seq_file *m, void *data) return 0; }
+/** + * amdgpu_debugfs_gpu_reset - manually trigger a gpu reset + * + * Manually trigger a gpu reset at the next fence wait. + */ +static int amdgpu_debugfs_gpu_reset(struct seq_file *m, void *data) +{ + struct drm_info_node *node = (struct drm_info_node *) m->private; + struct drm_device *dev = node->minor->dev; + struct amdgpu_device *adev = dev->dev_private; + + seq_printf(m, "gpu reset\n"); + amdgpu_gpu_reset(adev); + + return 0; +} + static struct drm_info_list amdgpu_debugfs_fence_list[] = { {"amdgpu_fence_info", &amdgpu_debugfs_fence_info, 0, NULL}, + {"amdgpu_gpu_reset", &amdgpu_debugfs_gpu_reset, 0, NULL} }; #endif
int amdgpu_debugfs_fence_init(struct amdgpu_device *adev) { #if defined(CONFIG_DEBUG_FS) - return amdgpu_debugfs_add_files(adev, amdgpu_debugfs_fence_list, 1); + return amdgpu_debugfs_add_files(adev, amdgpu_debugfs_fence_list, 2); #else return 0; #endif