From: Wenjing Liu <[email protected]> [WHY & HOW] The current otg master pipe allocation logic is not optimized based current resource context. We should try to acquire a free OTG master not used in cur cts first to avoid unnecessary pipe switch from current state.
Acked-by: Alex Hung <[email protected]> Signed-off-by: Wenjing Liu <[email protected]> --- drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 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 6159d819c5c5..49f8c90f0d2b 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c @@ -3586,6 +3586,7 @@ static void mark_seamless_boot_stream( * |________|_______________|___________|_____________| */ static bool acquire_otg_master_pipe_for_stream( + const struct dc_state *cur_ctx, struct dc_state *new_ctx, const struct resource_pool *pool, struct dc_stream_state *stream) @@ -3599,7 +3600,10 @@ static bool acquire_otg_master_pipe_for_stream( int pipe_idx; struct pipe_ctx *pipe_ctx = NULL; - pipe_idx = resource_find_any_free_pipe(&new_ctx->res_ctx, pool); + pipe_idx = recource_find_free_pipe_not_used_in_cur_res_ctx( + &cur_ctx->res_ctx, &new_ctx->res_ctx, pool); + if (pipe_idx == FREE_PIPE_INDEX_NOT_FOUND) + pipe_idx = resource_find_any_free_pipe(&new_ctx->res_ctx, pool); if (pipe_idx != FREE_PIPE_INDEX_NOT_FOUND) { pipe_ctx = &new_ctx->res_ctx.pipe_ctx[pipe_idx]; memset(pipe_ctx, 0, sizeof(*pipe_ctx)); @@ -3659,7 +3663,7 @@ enum dc_status resource_map_pool_resources( if (!acquired) /* acquire new resources */ - acquired = acquire_otg_master_pipe_for_stream( + acquired = acquire_otg_master_pipe_for_stream(dc->current_state, context, pool, stream); pipe_ctx = resource_get_otg_master_for_stream(&context->res_ctx, stream); -- 2.42.0
