From: Rob Clark robdclark@chromium.org
commit e4840d537c2c6b1189d4de16ee0f4820e069dcea 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: 4f776f4511c7 ("drm/msm/gpu: Convert the GPU show function to use the GPU state") Signed-off-by: Rob Clark robdclark@chromium.org Link: https://lore.kernel.org/r/20211108180122.487859-1-robdclark@gmail.com Signed-off-by: Rob Clark robdclark@chromium.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/msm/msm_debugfs.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/gpu/drm/msm/msm_debugfs.c +++ b/drivers/gpu/drm/msm/msm_debugfs.c @@ -83,6 +83,7 @@ static int msm_gpu_open(struct inode *in 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);