Commit 7b3f3948 authored by Jordan Crouse's avatar Jordan Crouse Committed by Rob Clark
Browse files

drm/msm: Disable preemption on all 5xx targets 



Temporarily disable preemption on a5xx targets pending some improvements
to protect the RPTR shadow from being corrupted.

Cc: stable@vger.kernel.org
Signed-off-by: default avatarJordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: default avatarRob Clark <robdclark@chromium.org>
parent 604234f3

drivers/gpu/drm/msm/adreno/a5xx_gpu.c

+2 −1
Original line number Diff line number Diff line
@@ -1511,7 +1511,8 @@ struct msm_gpu *a5xx_gpu_init(struct drm_device *dev) 


	check_speed_bin(&pdev->dev);



	ret = adreno_gpu_init(dev, pdev, adreno_gpu, &funcs, 4);

	/* Restricting nr_rings to 1 to temporarily disable preemption */

	ret = adreno_gpu_init(dev, pdev, adreno_gpu, &funcs, 1);

	if (ret) {

		a5xx_destroy(&(a5xx_gpu->base.base));

		return ERR_PTR(ret);

CRA Git | Maintained and supported by SUSTech CRA and CCSE