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drm/amd/display: Fix SubVP way calculation

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[Why and How]
- Don't skip bottom and next odm pipe when calculating
  num ways for subvp
- Don't need to double cache lines for DCC (divide by 256)

Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Alvin Lee <Alvin.Lee2@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alvin Lee
2022-09-02 15:39:12 -04:00
committed by Alex Deucher
parent b0f5b1004e
commit b81fafb936
1 changed files with 7 additions and 4 deletions
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drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource_helpers.c
+7 -4
View File
@@ -66,8 +66,11 @@ uint32_t dcn32_helper_calculate_num_ways_for_subvp(struct dc *dc, struct dc_stat
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 && !pipe->prev_odm_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;
@@ -118,9 +121,9 @@ uint32_t dcn32_helper_calculate_num_ways_for_subvp(struct dc *dc, struct dc_stat
// (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;
}
}