drm/msm: Do hw_init() before capturing GPU state
PATCH 1/1 drm/msm: Do hw_init() before capturing GPU state
From: Rob Clark <[email protected]>
In particular, we need to ensure all the necessary blocks are switched to 64b mode (a5xx+) otherwise the high bits of the address of the BO to snapshot state into will be ignored, resulting in:
*** gpu fault: ttbr0=0000000000000000 iova=0000000000012000 dir=READ type=TRANSLATION source=CP (0,0,0,0) platform 506a000.gmu: [drm:a6xx_gmu_set_oob] *ERROR* Timeout waiting for GMU OOB set BOOT_SLUMBER: 0x0
Fixes 4f776f4511c7 ("drm/msm/gpu: Convert the GPU show function to use the GPU state")
Signed-off-by Rob Clark <[email protected]>
--- drivers/gpu/drm/msm/msm_debugfs.c | 1 + 1 file changed, 1 insertion(+)
drivers/gpu/drm/msm/msm_debugfs.c +1 -0
@@ -77,6 +77,7 @@ static int msm_gpu_open(struct inode *inode, struct file *file) goto free_priv;pm_runtime_get_sync (&gpu->pdev->dev); +msm_gpu_hw_init (gpu); show_priv->state = gpu->funcs->gpu_state_get (gpu);pm_runtime_put_sync (&gpu->pdev->dev);
Signature · 1 line
2.31.1