Ported from similar code in radeon.
Reviewed-by: Junwei Zhang <Jerry.Zhang@xxxxxxx>
Reviewed-by: Christian König <christian.koenig@xxxxxxx>
Reviewed-by: Ken Wang <Qingqing.Wang@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
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
--
2.5.0
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