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drm/msm/gpu: Convert the GPU show function to use the GPU state

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Convert the existing GPU show function to use the GPU state to
dump the information rather than reading it directly from the hardware.
This will require an additional step to capture the state before
dumping it for the existing nodes but it will greatly facilitate reusing
the same code for dumping a previously captured state from a GPU hang.

Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Jordan Crouse
2018-07-24 10:33:25 -06:00
committed by Rob Clark
parent e00e473d98
commit 4f776f4511
7 changed files with 107 additions and 68 deletions
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3
drivers/gpu/drm/msm/msm_gpu.h
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@@ -65,7 +65,8 @@ struct msm_gpu_funcs {
void (*destroy)(struct msm_gpu *gpu);
#ifdef CONFIG_DEBUG_FS
/* show GPU status in debugfs: */
void (*show)(struct msm_gpu *gpu, struct seq_file *m);
void (*show)(struct msm_gpu *gpu, struct msm_gpu_state *state,
struct seq_file *m);
/* for generation specific debugfs: */
int (*debugfs_init)(struct msm_gpu *gpu, struct drm_minor *minor);
#endif