[PATCH 10/11] drm/amd/display: Reverse the visual confirm recouts

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From: Peterson Guo <peterson.guo@xxxxxxx>

[WHY]
When checking if a pipe can disable cursor to prevent duplicate cursors,
having visual confirm on will prevent disabling cursors on planes which
cover the bottom of the screen.

[HOW]
When checking if a plane can disable visual confirm, the pipe first
reverses these calculations before doing the checks.

Reviewed-by: Alvin Lee <alvin.lee2@xxxxxxx>
Signed-off-by: Peterson Guo <peterson.guo@xxxxxxx>
Signed-off-by: Wayne Lin <wayne.lin@xxxxxxx>
---
 .../gpu/drm/amd/display/dc/core/dc_resource.c | 67 +++++++++++++++++++
 drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c  | 50 +-------------
 .../amd/display/dc/hwss/dcn10/dcn10_hwseq.c   | 48 +------------
 .../amd/display/dc/hwss/dcn401/dcn401_hwseq.c | 48 +------------
 drivers/gpu/drm/amd/display/dc/inc/resource.h |  2 +
 5 files changed, 73 insertions(+), 142 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
index 520a34a42827..72c88fdeb28c 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -941,6 +941,17 @@ static void calculate_adjust_recout_for_visual_confirm(struct pipe_ctx *pipe_ctx
 		*base_offset = VISUAL_CONFIRM_BASE_DEFAULT;
 }
 
+static void reverse_adjust_recout_for_visual_confirm(struct rect *recout,
+		struct pipe_ctx *pipe_ctx)
+{
+	int dpp_offset, base_offset;
+
+	calculate_adjust_recout_for_visual_confirm(pipe_ctx, &base_offset,
+		&dpp_offset);
+	recout->height += base_offset;
+	recout->height += dpp_offset;
+}
+
 static void adjust_recout_for_visual_confirm(struct rect *recout,
 		struct pipe_ctx *pipe_ctx)
 {
@@ -1641,6 +1652,62 @@ bool resource_build_scaling_params(struct pipe_ctx *pipe_ctx)
 	return res;
 }
 
+bool resource_can_pipe_disable_cursor(struct pipe_ctx *pipe_ctx)
+{
+	struct pipe_ctx *test_pipe, *split_pipe;
+	struct rect r1 = pipe_ctx->plane_res.scl_data.recout;
+	int r1_right, r1_bottom;
+	int cur_layer = pipe_ctx->plane_state->layer_index;
+
+	reverse_adjust_recout_for_visual_confirm(&r1, pipe_ctx);
+	r1_right = r1.x + r1.width;
+	r1_bottom = r1.y + r1.height;
+
+	/**
+	 * Disable the cursor if there's another pipe above this with a
+	 * plane that contains this pipe's viewport to prevent double cursor
+	 * and incorrect scaling artifacts.
+	 */
+	for (test_pipe = pipe_ctx->top_pipe; test_pipe;
+	     test_pipe = test_pipe->top_pipe) {
+		struct rect r2;
+		int r2_right, r2_bottom;
+		// Skip invisible layer and pipe-split plane on same layer
+		if (!test_pipe->plane_state ||
+		    !test_pipe->plane_state->visible ||
+		    test_pipe->plane_state->layer_index == cur_layer)
+			continue;
+
+		r2 = test_pipe->plane_res.scl_data.recout;
+		reverse_adjust_recout_for_visual_confirm(&r2, test_pipe);
+		r2_right = r2.x + r2.width;
+		r2_bottom = r2.y + r2.height;
+
+		/**
+		 * There is another half plane on same layer because of
+		 * pipe-split, merge together per same height.
+		 */
+		for (split_pipe = pipe_ctx->top_pipe; split_pipe;
+		     split_pipe = split_pipe->top_pipe)
+			if (split_pipe->plane_state->layer_index == test_pipe->plane_state->layer_index) {
+				struct rect r2_half;
+
+				r2_half = split_pipe->plane_res.scl_data.recout;
+				reverse_adjust_recout_for_visual_confirm(&r2_half, split_pipe);
+				r2.x = min(r2_half.x, r2.x);
+				r2.width = r2.width + r2_half.width;
+				r2_right = r2.x + r2.width;
+				r2_bottom = min(r2_bottom, r2_half.y + r2_half.height);
+				break;
+			}
+
+		if (r1.x >= r2.x && r1.y >= r2.y && r1_right <= r2_right && r1_bottom <= r2_bottom)
+			return true;
+	}
+
+	return false;
+}
+
 
 enum dc_status resource_build_scaling_params_for_context(
 	const struct dc  *dc,
diff --git a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
index 44ff9abe2880..87b4c2793df3 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
+++ b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
@@ -991,57 +991,11 @@ void dc_dmub_srv_log_diagnostic_data(struct dc_dmub_srv *dc_dmub_srv)
 	DC_LOG_DEBUG("    is_cw6_en          : %d", diag_data.is_cw6_enabled);
 }
 
-static bool dc_can_pipe_disable_cursor(struct pipe_ctx *pipe_ctx)
-{
-	struct pipe_ctx *test_pipe, *split_pipe;
-	const struct scaler_data *scl_data = &pipe_ctx->plane_res.scl_data;
-	struct rect r1 = scl_data->recout, r2, r2_half;
-	int r1_r = r1.x + r1.width, r1_b = r1.y + r1.height, r2_r, r2_b;
-	int cur_layer = pipe_ctx->plane_state->layer_index;
-
-	/**
-	 * Disable the cursor if there's another pipe above this with a
-	 * plane that contains this pipe's viewport to prevent double cursor
-	 * and incorrect scaling artifacts.
-	 */
-	for (test_pipe = pipe_ctx->top_pipe; test_pipe;
-	     test_pipe = test_pipe->top_pipe) {
-		// Skip invisible layer and pipe-split plane on same layer
-		if (!test_pipe->plane_state->visible || test_pipe->plane_state->layer_index == cur_layer)
-			continue;
-
-		r2 = test_pipe->plane_res.scl_data.recout;
-		r2_r = r2.x + r2.width;
-		r2_b = r2.y + r2.height;
-
-		/**
-		 * There is another half plane on same layer because of
-		 * pipe-split, merge together per same height.
-		 */
-		for (split_pipe = pipe_ctx->top_pipe; split_pipe;
-		     split_pipe = split_pipe->top_pipe)
-			if (split_pipe->plane_state->layer_index == test_pipe->plane_state->layer_index) {
-				r2_half = split_pipe->plane_res.scl_data.recout;
-				r2.x = (r2_half.x < r2.x) ? r2_half.x : r2.x;
-				r2.width = r2.width + r2_half.width;
-				r2_r = r2.x + r2.width;
-				break;
-			}
-
-		if (r1.x >= r2.x && r1.y >= r2.y && r1_r <= r2_r && r1_b <= r2_b)
-			return true;
-	}
-
-	return false;
-}
-
 static bool dc_dmub_should_update_cursor_data(struct pipe_ctx *pipe_ctx)
 {
 	if (pipe_ctx->plane_state != NULL) {
-		if (pipe_ctx->plane_state->address.type == PLN_ADDR_TYPE_VIDEO_PROGRESSIVE)
-			return false;
-
-		if (dc_can_pipe_disable_cursor(pipe_ctx))
+		if (pipe_ctx->plane_state->address.type == PLN_ADDR_TYPE_VIDEO_PROGRESSIVE ||
+			resource_can_pipe_disable_cursor(pipe_ctx))
 			return false;
 	}
 
diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn10/dcn10_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn10/dcn10_hwseq.c
index c3cf2706b6ba..906934128912 100644
--- a/drivers/gpu/drm/amd/display/dc/hwss/dcn10/dcn10_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn10/dcn10_hwseq.c
@@ -3432,52 +3432,6 @@ void dcn10_update_dchub(struct dce_hwseq *hws, struct dchub_init_data *dh_data)
 	hubbub->funcs->update_dchub(hubbub, dh_data);
 }
 
-static bool dcn10_can_pipe_disable_cursor(struct pipe_ctx *pipe_ctx)
-{
-	struct pipe_ctx *test_pipe, *split_pipe;
-	const struct scaler_data *scl_data = &pipe_ctx->plane_res.scl_data;
-	struct rect r1 = scl_data->recout, r2, r2_half;
-	int r1_r = r1.x + r1.width, r1_b = r1.y + r1.height, r2_r, r2_b;
-	int cur_layer = pipe_ctx->plane_state->layer_index;
-
-	/**
-	 * Disable the cursor if there's another pipe above this with a
-	 * plane that contains this pipe's viewport to prevent double cursor
-	 * and incorrect scaling artifacts.
-	 */
-	for (test_pipe = pipe_ctx->top_pipe; test_pipe;
-	     test_pipe = test_pipe->top_pipe) {
-		// Skip invisible layer and pipe-split plane on same layer
-		if (!test_pipe->plane_state ||
-		    !test_pipe->plane_state->visible ||
-		    test_pipe->plane_state->layer_index == cur_layer)
-			continue;
-
-		r2 = test_pipe->plane_res.scl_data.recout;
-		r2_r = r2.x + r2.width;
-		r2_b = r2.y + r2.height;
-
-		/**
-		 * There is another half plane on same layer because of
-		 * pipe-split, merge together per same height.
-		 */
-		for (split_pipe = pipe_ctx->top_pipe; split_pipe;
-		     split_pipe = split_pipe->top_pipe)
-			if (split_pipe->plane_state->layer_index == test_pipe->plane_state->layer_index) {
-				r2_half = split_pipe->plane_res.scl_data.recout;
-				r2.x = (r2_half.x < r2.x) ? r2_half.x : r2.x;
-				r2.width = r2.width + r2_half.width;
-				r2_r = r2.x + r2.width;
-				break;
-			}
-
-		if (r1.x >= r2.x && r1.y >= r2.y && r1_r <= r2_r && r1_b <= r2_b)
-			return true;
-	}
-
-	return false;
-}
-
 void dcn10_set_cursor_position(struct pipe_ctx *pipe_ctx)
 {
 	struct dc_cursor_position pos_cpy = pipe_ctx->stream->cursor_position;
@@ -3577,7 +3531,7 @@ void dcn10_set_cursor_position(struct pipe_ctx *pipe_ctx)
 			== PLN_ADDR_TYPE_VIDEO_PROGRESSIVE)
 		pos_cpy.enable = false;
 
-	if (pos_cpy.enable && dcn10_can_pipe_disable_cursor(pipe_ctx))
+	if (pos_cpy.enable && resource_can_pipe_disable_cursor(pipe_ctx))
 		pos_cpy.enable = false;
 
 
diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c
index 555a9f590cd7..92bb820817b9 100644
--- a/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c
@@ -972,52 +972,6 @@ void dcn401_setup_hpo_hw_control(const struct dce_hwseq *hws, bool enable)
 	REG_UPDATE(HPO_TOP_HW_CONTROL, HPO_IO_EN, enable);
 }
 
-static bool dcn401_can_pipe_disable_cursor(struct pipe_ctx *pipe_ctx)
-{
-	struct pipe_ctx *test_pipe, *split_pipe;
-	const struct scaler_data *scl_data = &pipe_ctx->plane_res.scl_data;
-	struct rect r1 = scl_data->recout, r2, r2_half;
-	int r1_r = r1.x + r1.width, r1_b = r1.y + r1.height, r2_r, r2_b;
-	int cur_layer = pipe_ctx->plane_state->layer_index;
-
-	/**
-	 * Disable the cursor if there's another pipe above this with a
-	 * plane that contains this pipe's viewport to prevent double cursor
-	 * and incorrect scaling artifacts.
-	 */
-	for (test_pipe = pipe_ctx->top_pipe; test_pipe;
-		test_pipe = test_pipe->top_pipe) {
-		// Skip invisible layer and pipe-split plane on same layer
-		if (!test_pipe->plane_state ||
-			!test_pipe->plane_state->visible ||
-			test_pipe->plane_state->layer_index == cur_layer)
-			continue;
-
-		r2 = test_pipe->plane_res.scl_data.recout;
-		r2_r = r2.x + r2.width;
-		r2_b = r2.y + r2.height;
-
-		/**
-		 * There is another half plane on same layer because of
-		 * pipe-split, merge together per same height.
-		 */
-		for (split_pipe = pipe_ctx->top_pipe; split_pipe;
-			split_pipe = split_pipe->top_pipe)
-			if (split_pipe->plane_state->layer_index == test_pipe->plane_state->layer_index) {
-				r2_half = split_pipe->plane_res.scl_data.recout;
-				r2.x = (r2_half.x < r2.x) ? r2_half.x : r2.x;
-				r2.width = r2.width + r2_half.width;
-				r2_r = r2.x + r2.width;
-				break;
-			}
-
-		if (r1.x >= r2.x && r1.y >= r2.y && r1_r <= r2_r && r1_b <= r2_b)
-			return true;
-	}
-
-	return false;
-}
-
 void adjust_hotspot_between_slices_for_2x_magnify(uint32_t cursor_width, struct dc_cursor_position *pos_cpy)
 {
 	if (cursor_width <= 128) {
@@ -1208,7 +1162,7 @@ void dcn401_set_cursor_position(struct pipe_ctx *pipe_ctx)
 	pos_cpy.x = (uint32_t)x_pos;
 	pos_cpy.y = (uint32_t)y_pos;
 
-	if (pos_cpy.enable && dcn401_can_pipe_disable_cursor(pipe_ctx))
+	if (pos_cpy.enable && resource_can_pipe_disable_cursor(pipe_ctx))
 		pos_cpy.enable = false;
 
 	x_pos = pos_cpy.x - param.recout.x;
diff --git a/drivers/gpu/drm/amd/display/dc/inc/resource.h b/drivers/gpu/drm/amd/display/dc/inc/resource.h
index cd1157d225ab..b32d07ce0f08 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/resource.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/resource.h
@@ -152,6 +152,8 @@ bool resource_attach_surfaces_to_context(
 		struct dc_state *context,
 		const struct resource_pool *pool);
 
+bool resource_can_pipe_disable_cursor(struct pipe_ctx *pipe_ctx);
+
 #define FREE_PIPE_INDEX_NOT_FOUND -1
 
 /*
-- 
2.37.3




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