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drm/amdgpu: add a debugfs property to trigger a GPU reset 

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>
This commit is contained in:
Alex Deucher 2016-01-14 10:25:22 -05:00
parent bfa99269ea
commit 18db89b402
1 changed files with 19 additions and 1 deletions
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20
drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
View File

@ -734,15 +734,33 @@ static int amdgpu_debugfs_fence_info(struct seq_file *m, void *data)
return 0; 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[] = { static struct drm_info_list amdgpu_debugfs_fence_list[] = {
{"amdgpu_fence_info", &amdgpu_debugfs_fence_info, 0, NULL}, {"amdgpu_fence_info", &amdgpu_debugfs_fence_info, 0, NULL},
{"amdgpu_gpu_reset", &amdgpu_debugfs_gpu_reset, 0, NULL}
}; };
#endif #endif
int amdgpu_debugfs_fence_init(struct amdgpu_device *adev) int amdgpu_debugfs_fence_init(struct amdgpu_device *adev)
{ {
#if defined(CONFIG_DEBUG_FS) #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 #else
return 0; return 0;
#endif #endif