Temporarily disable preemption on a5xx targets pending some improvements to protect the RPTR shadow from being corrupted.
Signed-off-by: Jordan Crouse jcrouse@codeaurora.org ---
drivers/gpu/drm/msm/adreno/a5xx_gpu.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c index 9e63a190642c..e718f964d590 100644 --- a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c +++ b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c @@ -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);