drm/msm: Do hw_init() before capturing GPU state

commit e4840d5 upstream. 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: 4f776f4 ("drm/msm/gpu: Convert the GPU show function to use the GPU state") Signed-off-by: Rob Clark <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Rob Clark <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
pop-os · jackpot51 · Nov 26, 2021 · Nov 26, 2021 · Nov 26, 2021 · Nov 26, 2021
commit 3cae481575f5eb378a921d65d514c72988d9747a
diff --git a/drivers/gpu/drm/msm/msm_debugfs.c b/drivers/gpu/drm/msm/msm_debugfs.c
@@ -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);