Re: [PATCH 18/25] drm/msm/dpu: move the rest of plane checks to dpu_plane_atomic_check()

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On 2/9/2022 9:25 AM, Dmitry Baryshkov wrote:
Remove plane checks/state updates from dpu_crtc_atomic_check(). The
belong to dpu_plane_atomic_check().

The --> They
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
---
  drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c  | 44 -----------------------
  drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c | 18 +++++-----
  drivers/gpu/drm/msm/disp/dpu1/dpu_plane.h |  6 ----
  3 files changed, 10 insertions(+), 58 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
index cbd0e50c2bd3..fa279f0358d6 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
@@ -1054,14 +1054,10 @@ static int dpu_crtc_atomic_check(struct drm_crtc *crtc,
  	struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc);
  	struct dpu_crtc_state *cstate = to_dpu_crtc_state(crtc_state);
- const struct drm_plane_state *pstate;
-	struct drm_plane *plane;
  	struct drm_display_mode *mode;
int rc = 0; - struct drm_rect crtc_rect = { 0 };
-
  	if (!crtc_state->enable || !crtc_state->active) {
  		DRM_DEBUG_ATOMIC("crtc%d -> enable %d, active %d, skip atomic_check\n",
  				crtc->base.id, crtc_state->enable,
@@ -1080,46 +1076,6 @@ static int dpu_crtc_atomic_check(struct drm_crtc *crtc,
  	if (cstate->num_mixers)
  		_dpu_crtc_setup_lm_bounds(crtc, crtc_state);
- crtc_rect.x2 = mode->hdisplay;
-	crtc_rect.y2 = mode->vdisplay;
-
-	 /* get plane state for all drm planes associated with crtc state */
-	drm_atomic_crtc_state_for_each_plane_state(plane, pstate, crtc_state) {
-		struct drm_rect dst, clip = crtc_rect;
-		int z_pos;
-
-		if (IS_ERR_OR_NULL(pstate)) {
-			rc = PTR_ERR(pstate);
-			DPU_ERROR("%s: failed to get plane%d state, %d\n",
-					dpu_crtc->name, plane->base.id, rc);
-			return rc;
-		}
-
-		dpu_plane_clear_multirect(pstate);
-
-		dst = drm_plane_state_dest(pstate);
-		if (!drm_rect_intersect(&clip, &dst)) {
-			DPU_ERROR("invalid vertical/horizontal destination\n");
-			DPU_ERROR("display: " DRM_RECT_FMT " plane: "
-				  DRM_RECT_FMT "\n", DRM_RECT_ARG(&crtc_rect),
-				  DRM_RECT_ARG(&dst));
-			return -E2BIG;
-		}

Doesnt this check also have to be moved? We need to make sure dest rectangle is within CRTC bounds?

-
-		z_pos = pstate->normalized_zpos;
-
-		/* verify z_pos setting before using it */
-		if (z_pos >= DPU_STAGE_MAX - DPU_STAGE_0) {
-			DPU_ERROR("> %d plane stages assigned\n",
-					DPU_STAGE_MAX - DPU_STAGE_0);
-			return -EINVAL;
-		}
-
-		to_dpu_plane_state(pstate)->stage = z_pos + DPU_STAGE_0;
-		DRM_DEBUG_ATOMIC("%s: zpos %d\n", dpu_crtc->name, z_pos);
-
-	}
-
  	atomic_inc(&_dpu_crtc_get_kms(crtc)->bandwidth_ref);
rc = dpu_core_perf_crtc_check(crtc, crtc_state);
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
index b2395f02f6d3..637d164667e9 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
@@ -702,14 +702,6 @@ static int _dpu_plane_color_fill(struct dpu_plane *pdpu,
  	return 0;
  }
-void dpu_plane_clear_multirect(const struct drm_plane_state *drm_state)
-{
-	struct dpu_plane_state *pstate = to_dpu_plane_state(drm_state);
-
-	pstate->pipe.multirect_index = DPU_SSPP_RECT_SOLO;
-	pstate->pipe.multirect_mode = DPU_SSPP_MULTIRECT_NONE;
-}
-
  int dpu_plane_validate_multirect_v2(struct dpu_multirect_plane_states *plane)
  {
  	struct dpu_plane_state *pstate[R_MAX];
@@ -931,6 +923,16 @@ static int dpu_plane_atomic_check(struct drm_plane *plane,
  	if (!new_plane_state->visible)
  		return 0;
+ pstate->pipe.multirect_index = DPU_SSPP_RECT_SOLO;
+	pstate->pipe.multirect_mode = DPU_SSPP_MULTIRECT_NONE;
+
+	pstate->stage = DPU_STAGE_0 + pstate->base.normalized_zpos;
+	if (pstate->stage >= DPU_STAGE_MAX) {
+		DPU_ERROR("> %d plane stages assigned\n",
+				DPU_STAGE_MAX - DPU_STAGE_0);
+		return -EINVAL;
+	}
+
  	src.x1 = new_plane_state->src_x >> 16;
  	src.y1 = new_plane_state->src_y >> 16;
  	src.x2 = src.x1 + (new_plane_state->src_w >> 16);
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.h
index b6fd6f856d6a..e61c57b045ea 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.h
@@ -83,12 +83,6 @@ struct drm_plane *dpu_plane_init(struct drm_device *dev,
   */
  int dpu_plane_validate_multirect_v2(struct dpu_multirect_plane_states *plane);
-/**
- * dpu_plane_clear_multirect - clear multirect bits for the given pipe
- * @drm_state: Pointer to DRM plane state
- */
-void dpu_plane_clear_multirect(const struct drm_plane_state *drm_state);
-
  /**
   * dpu_plane_color_fill - enables color fill on plane
   * @plane:  Pointer to DRM plane object



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