Merge tag 'drm-fixes-2020-09-08' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "The i915 reverts are going to be a bit of a conflict mess for next, so
  I decided to dequeue them now, along with some msm fixes for a ring
  corruption issue, that Rob sent over the weekend.

  Summary:

  i915:
   - revert gpu relocation changes due to regression

  msm:
  - fixes for RPTR corruption issue"

* tag 'drm-fixes-2020-09-08' of git://anongit.freedesktop.org/drm/drm:
  Revert "drm/i915/gem: Delete unused code"
  Revert "drm/i915/gem: Async GPU relocations only"
  Revert "drm/i915: Remove i915_gem_object_get_dirty_page()"
  drm/msm: Disable the RPTR shadow
  drm/msm: Disable preemption on all 5xx targets
  drm/msm: Enable expanded apriv support for a650
  drm/msm: Split the a5xx preemption record

1 files changed, 12 insertions, 1 deletions

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
index 3966abd523cc..66a95e22b7b3 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
@@ -678,7 +678,8 @@ static int a6xx_hw_init(struct msm_gpu *gpu)
 			A6XX_PROTECT_RDONLY(0x980, 0x4));
 	gpu_write(gpu, REG_A6XX_CP_PROTECT(25), A6XX_PROTECT_RW(0xa630, 0x0));
 
-	if (adreno_is_a650(adreno_gpu)) {
+	/* Enable expanded apriv for targets that support it */
+	if (gpu->hw_apriv) {
 		gpu_write(gpu, REG_A6XX_CP_APRIV_CNTL,
 			(1 << 6) | (1 << 5) | (1 << 3) | (1 << 2) | (1 << 1));
 	}
@@ -694,6 +695,13 @@ static int a6xx_hw_init(struct msm_gpu *gpu)
 	if (ret)
 		goto out;
 
+	/* Set the ringbuffer address */
+	gpu_write64(gpu, REG_A6XX_CP_RB_BASE, REG_A6XX_CP_RB_BASE_HI,
+		gpu->rb[0]->iova);
+
+	gpu_write(gpu, REG_A6XX_CP_RB_CNTL,
+		MSM_GPU_RB_CNTL_DEFAULT | AXXX_CP_RB_CNTL_NO_UPDATE);
+
 	/* Always come up on rb 0 */
 	a6xx_gpu->cur_ring = gpu->rb[0];
 
@@ -1056,6 +1064,9 @@ struct msm_gpu *a6xx_gpu_init(struct drm_device *dev)
 	adreno_gpu->registers = NULL;
 	adreno_gpu->reg_offsets = a6xx_register_offsets;
 
+	if (adreno_is_a650(adreno_gpu))
+		adreno_gpu->base.hw_apriv = true;
+
 	ret = adreno_gpu_init(dev, pdev, adreno_gpu, &funcs, 1);
 	if (ret) {
 		a6xx_destroy(&(a6xx_gpu->base.base));