drm/msm/dpu: rework dpu_plane_sspp_atomic_update()

Split pipe-dependent code from dpu_plane_sspp_atomic_update() into the
separate function dpu_plane_sspp_update_pipe(). This is one of
preparational steps to add r_pipe support.
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Tested-by: Abhinav Kumar <quic_abhinavk@quicinc.com> # sc7280
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/527337/
Link: https://lore.kernel.org/r/20230316161653.4106395-23-dmitry.baryshkov@linaro.orgSigned-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c

@@ -405,12 +405,13 @@ static void _dpu_plane_set_qos_ctrl(struct drm_plane *plane,
  * _dpu_plane_set_ot_limit - set OT limit for the given plane
  * @plane:		Pointer to drm plane
  * @pipe:		Pointer to software pipe
- * @crtc:		Pointer to drm crtc
  * @pipe_cfg:		Pointer to pipe configuration
+ * @frame_rate:		CRTC's frame rate
  */
 static void _dpu_plane_set_ot_limit(struct drm_plane *plane,
 		struct dpu_sw_pipe *pipe,
-		struct drm_crtc *crtc, struct dpu_sw_pipe_cfg *pipe_cfg)
+		struct dpu_sw_pipe_cfg *pipe_cfg,
+		int frame_rate)
 {
 	struct dpu_plane *pdpu = to_dpu_plane(plane);
 	struct dpu_vbif_set_ot_params ot_params;
@@ -422,7 +423,7 @@ static void _dpu_plane_set_ot_limit(struct drm_plane *plane,
 	ot_params.width = drm_rect_width(&pipe_cfg->src_rect);
 	ot_params.height = drm_rect_height(&pipe_cfg->src_rect);
 	ot_params.is_wfd = !pdpu->is_rt_pipe;
-	ot_params.frame_rate = drm_mode_vrefresh(&crtc->mode);
+	ot_params.frame_rate = frame_rate;
 	ot_params.vbif_idx = VBIF_RT;
 	ot_params.clk_ctrl = pipe->sspp->cap->clk_ctrl;
 	ot_params.rd = true;
@@ -458,26 +459,6 @@ static void _dpu_plane_set_qos_remap(struct drm_plane *plane,
 	dpu_vbif_set_qos_remap(dpu_kms, &qos_params);
 }
 
-static void _dpu_plane_set_scanout(struct drm_plane *plane,
-		struct dpu_plane_state *pstate,
-		struct drm_framebuffer *fb)
-{
-	struct dpu_plane *pdpu = to_dpu_plane(plane);
-	struct dpu_kms *kms = _dpu_plane_get_kms(&pdpu->base);
-	struct msm_gem_address_space *aspace = kms->base.aspace;
-	struct dpu_hw_fmt_layout layout;
-	int ret;
-
-	ret = dpu_format_populate_layout(aspace, fb, &layout);
-	if (ret)
-		DPU_ERROR_PLANE(pdpu, "failed to get format layout, %d\n", ret);
-	else if (pstate->pipe.sspp->ops.setup_sourceaddress) {
-		trace_dpu_plane_set_scanout(&pstate->pipe,
-					    &layout);
-		pstate->pipe.sspp->ops.setup_sourceaddress(&pstate->pipe, &layout);
-	}
-}
-
 static void _dpu_plane_setup_scaler3(struct dpu_hw_sspp *pipe_hw,
 		uint32_t src_w, uint32_t src_h, uint32_t dst_w, uint32_t dst_h,
 		struct dpu_hw_scaler3_cfg *scale_cfg,
@@ -1104,35 +1085,25 @@ void dpu_plane_set_error(struct drm_plane *plane, bool error)
 	pdpu->is_error = error;
 }
 
-static void dpu_plane_sspp_atomic_update(struct drm_plane *plane)
+static void dpu_plane_sspp_update_pipe(struct drm_plane *plane,
+				       struct dpu_sw_pipe *pipe,
+				       struct dpu_sw_pipe_cfg *pipe_cfg,
+				       const struct dpu_format *fmt,
+				       int frame_rate,
+				       struct dpu_hw_fmt_layout *layout)
 {
 	uint32_t src_flags;
 	struct dpu_plane *pdpu = to_dpu_plane(plane);
 	struct drm_plane_state *state = plane->state;
 	struct dpu_plane_state *pstate = to_dpu_plane_state(state);
-	struct dpu_sw_pipe *pipe = &pstate->pipe;
-	struct drm_crtc *crtc = state->crtc;
-	struct drm_framebuffer *fb = state->fb;
-	bool is_rt_pipe;
-	const struct dpu_format *fmt =
-		to_dpu_format(msm_framebuffer_format(fb));
-	struct dpu_sw_pipe_cfg *pipe_cfg = &pstate->pipe_cfg;
 
-	_dpu_plane_set_scanout(plane, pstate, fb);
-
-	pstate->pending = true;
-
-	is_rt_pipe = (dpu_crtc_get_client_type(crtc) != NRT_CLIENT);
-	pstate->needs_qos_remap |= (is_rt_pipe != pdpu->is_rt_pipe);
-	pdpu->is_rt_pipe = is_rt_pipe;
+	if (layout && pipe->sspp->ops.setup_sourceaddress) {
+		trace_dpu_plane_set_scanout(pipe, layout);
+		pipe->sspp->ops.setup_sourceaddress(pipe, layout);
+	}
 
 	_dpu_plane_set_qos_ctrl(plane, pipe, false, DPU_PLANE_QOS_PANIC_CTRL);
 
-	DPU_DEBUG_PLANE(pdpu, "FB[%u] " DRM_RECT_FP_FMT "->crtc%u " DRM_RECT_FMT
-			", %4.4s ubwc %d\n", fb->base.id, DRM_RECT_FP_ARG(&state->src),
-			crtc->base.id, DRM_RECT_ARG(&state->dst),
-			(char *)&fmt->base.pixel_format, DPU_FORMAT_IS_UBWC(fmt));
-
 	/* override for color fill */
 	if (pdpu->color_fill & DPU_PLANE_COLOR_FILL_FLAG) {
 		/* skip remaining processing on color fill */
@@ -1185,23 +1156,65 @@ static void dpu_plane_sspp_atomic_update(struct drm_plane *plane)
 		}
 	}
 
-	_dpu_plane_set_qos_lut(plane, pipe, fmt, &pstate->pipe_cfg);
+	_dpu_plane_set_qos_lut(plane, pipe, fmt, pipe_cfg);
 	_dpu_plane_set_danger_lut(plane, pipe, fmt);
 
 	if (plane->type != DRM_PLANE_TYPE_CURSOR) {
 		_dpu_plane_set_qos_ctrl(plane, pipe, true, DPU_PLANE_QOS_PANIC_CTRL);
-		_dpu_plane_set_ot_limit(plane, pipe, crtc, &pstate->pipe_cfg);
+		_dpu_plane_set_ot_limit(plane, pipe, pipe_cfg, frame_rate);
 	}
 
-	if (pstate->needs_qos_remap) {
-		pstate->needs_qos_remap = false;
+	if (pstate->needs_qos_remap)
 		_dpu_plane_set_qos_remap(plane, pipe);
-	}
+}
+
+static void dpu_plane_sspp_atomic_update(struct drm_plane *plane)
+{
+	struct dpu_plane *pdpu = to_dpu_plane(plane);
+	struct drm_plane_state *state = plane->state;
+	struct dpu_plane_state *pstate = to_dpu_plane_state(state);
+	struct dpu_sw_pipe *pipe = &pstate->pipe;
+	struct drm_crtc *crtc = state->crtc;
+	struct drm_framebuffer *fb = state->fb;
+	bool is_rt_pipe;
+	const struct dpu_format *fmt =
+		to_dpu_format(msm_framebuffer_format(fb));
+	struct dpu_sw_pipe_cfg *pipe_cfg = &pstate->pipe_cfg;
+
+	struct dpu_kms *kms = _dpu_plane_get_kms(&pdpu->base);
+	struct msm_gem_address_space *aspace = kms->base.aspace;
+	struct dpu_hw_fmt_layout layout;
+	bool layout_valid = false;
+	int ret;
+
+	ret = dpu_format_populate_layout(aspace, fb, &layout);
+	if (ret)
+		DPU_ERROR_PLANE(pdpu, "failed to get format layout, %d\n", ret);
+	else
+		layout_valid = true;
+
+	pstate->pending = true;
+
+	is_rt_pipe = (dpu_crtc_get_client_type(crtc) != NRT_CLIENT);
+	pstate->needs_qos_remap |= (is_rt_pipe != pdpu->is_rt_pipe);
+	pdpu->is_rt_pipe = is_rt_pipe;
+
+	DPU_DEBUG_PLANE(pdpu, "FB[%u] " DRM_RECT_FP_FMT "->crtc%u " DRM_RECT_FMT
+			", %4.4s ubwc %d\n", fb->base.id, DRM_RECT_FP_ARG(&state->src),
+			crtc->base.id, DRM_RECT_ARG(&state->dst),
+			(char *)&fmt->base.pixel_format, DPU_FORMAT_IS_UBWC(fmt));
+
+	dpu_plane_sspp_update_pipe(plane, pipe, pipe_cfg, fmt,
+				   drm_mode_vrefresh(&crtc->mode),
+				   layout_valid ? &layout : NULL);
+
+	if (pstate->needs_qos_remap)
+		pstate->needs_qos_remap = false;
 
 	pstate->plane_fetch_bw = _dpu_plane_calc_bw(pdpu->catalog, fmt,
-						    &crtc->mode, &pstate->pipe_cfg);
+						    &crtc->mode, pipe_cfg);
 
-	pstate->plane_clk = _dpu_plane_calc_clk(&crtc->mode, &pstate->pipe_cfg);
+	pstate->plane_clk = _dpu_plane_calc_clk(&crtc->mode, pipe_cfg);
 }
 
 static void _dpu_plane_atomic_disable(struct drm_plane *plane)