1 files changed, 184 insertions, 31 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource_helpers.c b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource_helpers.c
index ab918fe38f6a..a2a70a1572b7 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource_helpers.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource_helpers.c
@@ -28,6 +28,11 @@
 #include "dcn20/dcn20_resource.h"
 #include "dml/dcn32/display_mode_vba_util_32.h"
 
+static bool is_dual_plane(enum surface_pixel_format format)
+{
+	return format >= SURFACE_PIXEL_FORMAT_VIDEO_BEGIN || format == SURFACE_PIXEL_FORMAT_GRPH_RGBE_ALPHA;
+}
+
 /**
  * ********************************************************************************************
  * dcn32_helper_calculate_num_ways_for_subvp: Calculate number of ways needed for SubVP
@@ -46,7 +51,6 @@
 uint32_t dcn32_helper_calculate_num_ways_for_subvp(struct dc *dc, struct dc_state *context)
 {
 	uint32_t num_ways = 0;
-	uint32_t mall_region_pixels = 0;
 	uint32_t bytes_per_pixel = 0;
 	uint32_t cache_lines_used = 0;
 	uint32_t lines_per_way = 0;
@@ -54,28 +58,77 @@ uint32_t dcn32_helper_calculate_num_ways_for_subvp(struct dc *dc, struct dc_stat
 	uint32_t bytes_in_mall = 0;
 	uint32_t num_mblks = 0;
 	uint32_t cache_lines_per_plane = 0;
-	uint32_t i = 0;
+	uint32_t i = 0, j = 0;
+	uint16_t mblk_width = 0;
+	uint16_t mblk_height = 0;
+	uint32_t full_vp_width_blk_aligned = 0;
+	uint32_t full_vp_height_blk_aligned = 0;
+	uint32_t mall_alloc_width_blk_aligned = 0;
+	uint32_t mall_alloc_height_blk_aligned = 0;
+	uint16_t full_vp_height = 0;
+	bool subvp_in_use = false;
 
 	for (i = 0; i < dc->res_pool->pipe_count; i++) {
 		struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i];
 
-		// Find the phantom pipes
-		if (pipe->stream && pipe->plane_state && !pipe->top_pipe &&
+		/* Find the phantom pipes.
+		 * - For pipe split case we need to loop through the bottom and next ODM
+		 *   pipes or only half the viewport size is counted
+		 */
+		if (pipe->stream && pipe->plane_state &&
 				pipe->stream->mall_stream_config.type == SUBVP_PHANTOM) {
+			struct pipe_ctx *main_pipe = NULL;
+
+			subvp_in_use = true;
+			/* Get full viewport height from main pipe (required for MBLK calculation) */
+			for (j = 0; j < dc->res_pool->pipe_count; j++) {
+				main_pipe = &context->res_ctx.pipe_ctx[j];
+				if (main_pipe->stream == pipe->stream->mall_stream_config.paired_stream) {
+					full_vp_height = main_pipe->plane_res.scl_data.viewport.height;
+					break;
+				}
+			}
+
 			bytes_per_pixel = pipe->plane_state->format >= SURFACE_PIXEL_FORMAT_GRPH_ARGB16161616 ? 8 : 4;
-			mall_region_pixels = pipe->plane_state->plane_size.surface_pitch * pipe->stream->timing.v_addressable;
+			mblk_width = DCN3_2_MBLK_WIDTH;
+			mblk_height = bytes_per_pixel == 4 ? DCN3_2_MBLK_HEIGHT_4BPE : DCN3_2_MBLK_HEIGHT_8BPE;
+
+			/* full_vp_width_blk_aligned = FLOOR(vp_x_start + full_vp_width + blk_width - 1, blk_width) -
+			 * FLOOR(vp_x_start, blk_width)
+			 */
+			full_vp_width_blk_aligned = ((pipe->plane_res.scl_data.viewport.x +
+					pipe->plane_res.scl_data.viewport.width + mblk_width - 1) / mblk_width * mblk_width) +
+					(pipe->plane_res.scl_data.viewport.x / mblk_width * mblk_width);
+
+			/* full_vp_height_blk_aligned = FLOOR(vp_y_start + full_vp_height + blk_height - 1, blk_height) -
+			 * FLOOR(vp_y_start, blk_height)
+			 */
+			full_vp_height_blk_aligned = ((pipe->plane_res.scl_data.viewport.y +
+					full_vp_height + mblk_height - 1) / mblk_height * mblk_height) +
+					(pipe->plane_res.scl_data.viewport.y / mblk_height * mblk_height);
 
-			// For bytes required in MALL, calculate based on number of MBlks required
-			num_mblks = (mall_region_pixels * bytes_per_pixel +
-					DCN3_2_MALL_MBLK_SIZE_BYTES - 1) / DCN3_2_MALL_MBLK_SIZE_BYTES;
+			/* mall_alloc_width_blk_aligned_l/c = full_vp_width_blk_aligned_l/c */
+			mall_alloc_width_blk_aligned = full_vp_width_blk_aligned;
+
+			/* mall_alloc_height_blk_aligned_l/c = CEILING(sub_vp_height_l/c - 1, blk_height_l/c) + blk_height_l/c */
+			mall_alloc_height_blk_aligned = (pipe->stream->timing.v_addressable - 1 + mblk_height - 1) /
+					mblk_height * mblk_height + mblk_height;
+
+			/* full_mblk_width_ub_l/c = mall_alloc_width_blk_aligned_l/c;
+			 * full_mblk_height_ub_l/c = mall_alloc_height_blk_aligned_l/c;
+			 * num_mblk_l/c = (full_mblk_width_ub_l/c / mblk_width_l/c) * (full_mblk_height_ub_l/c / mblk_height_l/c);
+			 * (Should be divisible, but round up if not)
+			 */
+			num_mblks = ((mall_alloc_width_blk_aligned + mblk_width - 1) / mblk_width) *
+					((mall_alloc_height_blk_aligned + mblk_height - 1) / mblk_height);
 			bytes_in_mall = num_mblks * DCN3_2_MALL_MBLK_SIZE_BYTES;
 			// cache lines used is total bytes / cache_line size. Add +2 for worst case alignment
 			// (MALL is 64-byte aligned)
 			cache_lines_per_plane = bytes_in_mall / dc->caps.cache_line_size + 2;
 
-			// For DCC we must cache the meat surface, so double cache lines required
+			/* For DCC divide by 256 */
 			if (pipe->plane_state->dcc.enable)
-				cache_lines_per_plane *= 2;
+				cache_lines_per_plane = cache_lines_per_plane + (cache_lines_per_plane / 256) + 1;
 			cache_lines_used += cache_lines_per_plane;
 		}
 	}
@@ -86,6 +139,9 @@ uint32_t dcn32_helper_calculate_num_ways_for_subvp(struct dc *dc, struct dc_stat
 	if (cache_lines_used % lines_per_way > 0)
 		num_ways++;
 
+	if (subvp_in_use && dc->debug.force_subvp_num_ways > 0)
+		num_ways = dc->debug.force_subvp_num_ways;
+
 	return num_ways;
 }
 
@@ -177,36 +233,133 @@ bool dcn32_mpo_in_use(struct dc_state *context)
 	return false;
 }
 
-void dcn32_determine_det_override(struct dc_state *context, display_e2e_pipe_params_st *pipes,
-		bool *is_pipe_split_expected, int pipe_cnt)
+/**
+ * *******************************************************************************************
+ * dcn32_determine_det_override: Determine DET allocation for each pipe
+ *
+ * This function determines how much DET to allocate for each pipe. The total number of
+ * DET segments will be split equally among each of the streams, and after that the DET
+ * segments per stream will be split equally among the planes for the given stream.
+ *
+ * If there is a plane that's driven by more than 1 pipe (i.e. pipe split), then the
+ * number of DET for that given plane will be split among the pipes driving that plane.
+ *
+ *
+ * High level algorithm:
+ * 1. Split total DET among number of streams
+ * 2. For each stream, split DET among the planes
+ * 3. For each plane, check if there is a pipe split. If yes, split the DET allocation
+ *    among those pipes.
+ * 4. Assign the DET override to the DML pipes.
+ *
+ * @param [in]: dc: Current DC state
+ * @param [in]: context: New DC state to be programmed
+ * @param [in]: pipes: Array of DML pipes
+ *
+ * @return: void
+ *
+ * *******************************************************************************************
+ */
+void dcn32_determine_det_override(struct dc *dc,
+		struct dc_state *context,
+		display_e2e_pipe_params_st *pipes)
 {
-	int i, j, count, stream_segments, pipe_segments[MAX_PIPES];
+	uint32_t i, j, k;
+	uint8_t pipe_plane_count, stream_segments, plane_segments, pipe_segments[MAX_PIPES] = {0};
+	uint8_t pipe_counted[MAX_PIPES] = {0};
+	uint8_t pipe_cnt = 0;
+	struct dc_plane_state *current_plane = NULL;
+	uint8_t stream_count = 0;
+
+	for (i = 0; i < context->stream_count; i++) {
+		/* Don't count SubVP streams for DET allocation */
+		if (context->streams[i]->mall_stream_config.type != SUBVP_PHANTOM) {
+			stream_count++;
+		}
+	}
 
-	if (context->stream_count > 0) {
-		stream_segments = 18 / context->stream_count;
+	if (stream_count > 0) {
+		stream_segments = 18 / stream_count;
 		for (i = 0; i < context->stream_count; i++) {
-			count = 0;
-			for (j = 0; j < pipe_cnt; j++) {
-				if (context->res_ctx.pipe_ctx[j].stream == context->streams[i]) {
-					count++;
-					if (is_pipe_split_expected[j])
-						count++;
+			if (context->streams[i]->mall_stream_config.type == SUBVP_PHANTOM)
+				continue;
+			if (context->stream_status[i].plane_count > 0)
+				plane_segments = stream_segments / context->stream_status[i].plane_count;
+			else
+				plane_segments = stream_segments;
+			for (j = 0; j < dc->res_pool->pipe_count; j++) {
+				pipe_plane_count = 0;
+				if (context->res_ctx.pipe_ctx[j].stream == context->streams[i] &&
+						pipe_counted[j] != 1) {
+					/* Note: pipe_plane_count indicates the number of pipes to be used for a
+					 * given plane. e.g. pipe_plane_count = 1 means single pipe (i.e. not split),
+					 * pipe_plane_count = 2 means 2:1 split, etc.
+					 */
+					pipe_plane_count++;
+					pipe_counted[j] = 1;
+					current_plane = context->res_ctx.pipe_ctx[j].plane_state;
+					for (k = 0; k < dc->res_pool->pipe_count; k++) {
+						if (k != j && context->res_ctx.pipe_ctx[k].stream == context->streams[i] &&
+								context->res_ctx.pipe_ctx[k].plane_state == current_plane) {
+							pipe_plane_count++;
+							pipe_counted[k] = 1;
+						}
+					}
+
+					pipe_segments[j] = plane_segments / pipe_plane_count;
+					for (k = 0; k < dc->res_pool->pipe_count; k++) {
+						if (k != j && context->res_ctx.pipe_ctx[k].stream == context->streams[i] &&
+								context->res_ctx.pipe_ctx[k].plane_state == current_plane) {
+							pipe_segments[k] = plane_segments / pipe_plane_count;
+						}
+					}
 				}
 			}
-			pipe_segments[i] = stream_segments / count;
 		}
 
-		for (i = 0; i < pipe_cnt; i++) {
-			pipes[i].pipe.src.det_size_override = 0;
-			for (j = 0; j < context->stream_count; j++) {
-				if (context->res_ctx.pipe_ctx[i].stream == context->streams[j]) {
-					pipes[i].pipe.src.det_size_override = pipe_segments[j] * DCN3_2_DET_SEG_SIZE;
-					break;
-				}
-			}
+		for (i = 0, pipe_cnt = 0; i < dc->res_pool->pipe_count; i++) {
+			if (!context->res_ctx.pipe_ctx[i].stream)
+				continue;
+			pipes[pipe_cnt].pipe.src.det_size_override = pipe_segments[i] * DCN3_2_DET_SEG_SIZE;
+			pipe_cnt++;
 		}
 	} else {
-		for (i = 0; i < pipe_cnt; i++)
+		for (i = 0; i < dc->res_pool->pipe_count; i++)
 			pipes[i].pipe.src.det_size_override = 4 * DCN3_2_DET_SEG_SIZE; //DCN3_2_DEFAULT_DET_SIZE
 	}
 }
+
+void dcn32_set_det_allocations(struct dc *dc, struct dc_state *context,
+	display_e2e_pipe_params_st *pipes)
+{
+	int i, pipe_cnt;
+	struct resource_context *res_ctx = &context->res_ctx;
+	struct pipe_ctx *pipe;
+
+	for (i = 0, pipe_cnt = 0; i < dc->res_pool->pipe_count; i++) {
+
+		if (!res_ctx->pipe_ctx[i].stream)
+			continue;
+
+		pipe = &res_ctx->pipe_ctx[i];
+		pipe_cnt++;
+	}
+
+	/* For DET allocation, we don't want to use DML policy (not optimal for utilizing all
+	 * the DET available for each pipe). Use the DET override input to maintain our driver
+	 * policy.
+	 */
+	if (pipe_cnt == 1) {
+		pipes[0].pipe.src.det_size_override = DCN3_2_MAX_DET_SIZE;
+		if (pipe->plane_state && !dc->debug.disable_z9_mpc && pipe->plane_state->tiling_info.gfx9.swizzle != DC_SW_LINEAR) {
+			if (!is_dual_plane(pipe->plane_state->format)) {
+				pipes[0].pipe.src.det_size_override = DCN3_2_DEFAULT_DET_SIZE;
+				pipes[0].pipe.src.unbounded_req_mode = true;
+				if (pipe->plane_state->src_rect.width >= 5120 &&
+					pipe->plane_state->src_rect.height >= 2880)
+					pipes[0].pipe.src.det_size_override = 320; // 5K or higher
+			}
+		}
+	} else
+		dcn32_determine_det_override(dc, context, pipes);
+}