From 0800dfd836c293f4c076ab07e1cbd14d131dee76 Mon Sep 17 00:00:00 2001 From: jsg Date: Fri, 4 Aug 2023 08:36:52 +0000 Subject: [PATCH] drm/amd/display: add ODM case when looking for first split pipe From Samson Tam 8d515d39d8005981479a93fd6bee2649c59f0b1b in linux-6.1.y/6.1.43 59de751e3845d699e02dc4da47322b92d83a41e2 in mainline linux --- .../pci/drm/amd/display/dc/core/amdgpu_dc.c | 36 ++++++++++++++++++- .../pci/drm/amd/display/dc/core/dc_resource.c | 20 +++++++++++ 2 files changed, 55 insertions(+), 1 deletion(-) diff --git a/sys/dev/pci/drm/amd/display/dc/core/amdgpu_dc.c b/sys/dev/pci/drm/amd/display/dc/core/amdgpu_dc.c index c429748c86c..629bc53f618 100644 --- a/sys/dev/pci/drm/amd/display/dc/core/amdgpu_dc.c +++ b/sys/dev/pci/drm/amd/display/dc/core/amdgpu_dc.c @@ -1913,6 +1913,9 @@ static enum dc_status dc_commit_state_no_check(struct dc *dc, struct dc_state *c return result; } +static bool commit_minimal_transition_state(struct dc *dc, + struct dc_state *transition_base_context); + /** * dc_commit_streams - Commit current stream state * @@ -1934,6 +1937,8 @@ enum dc_status dc_commit_streams(struct dc *dc, struct dc_state *context; enum dc_status res = DC_OK; struct dc_validation_set set[MAX_STREAMS] = {0}; + struct pipe_ctx *pipe; + bool handle_exit_odm2to1 = false; if (!streams_changed(dc, streams, stream_count)) return res; @@ -1955,6 +1960,22 @@ enum dc_status dc_commit_streams(struct dc *dc, } } + /* Check for case where we are going from odm 2:1 to max + * pipe scenario. For these cases, we will call + * commit_minimal_transition_state() to exit out of odm 2:1 + * first before processing new streams + */ + if (stream_count == dc->res_pool->pipe_count) { + for (i = 0; i < dc->res_pool->pipe_count; i++) { + pipe = &dc->current_state->res_ctx.pipe_ctx[i]; + if (pipe->next_odm_pipe) + handle_exit_odm2to1 = true; + } + } + + if (handle_exit_odm2to1) + res = commit_minimal_transition_state(dc, dc->current_state); + context = dc_create_state(dc); if (!context) goto context_alloc_fail; @@ -3759,6 +3780,7 @@ static bool commit_minimal_transition_state(struct dc *dc, unsigned int i, j; unsigned int pipe_in_use = 0; bool subvp_in_use = false; + bool odm_in_use = false; if (!transition_context) return false; @@ -3783,6 +3805,18 @@ static bool commit_minimal_transition_state(struct dc *dc, } } + /* If ODM is enabled and we are adding or removing planes from any ODM + * pipe, we must use the minimal transition. + */ + for (i = 0; i < dc->res_pool->pipe_count; i++) { + struct pipe_ctx *pipe = &dc->current_state->res_ctx.pipe_ctx[i]; + + if (pipe->stream && pipe->next_odm_pipe) { + odm_in_use = true; + break; + } + } + /* When the OS add a new surface if we have been used all of pipes with odm combine * and mpc split feature, it need use commit_minimal_transition_state to transition safely. * After OS exit MPO, it will back to use odm and mpc split with all of pipes, we need @@ -3791,7 +3825,7 @@ static bool commit_minimal_transition_state(struct dc *dc, * Reduce the scenarios to use dc_commit_state_no_check in the stage of flip. Especially * enter/exit MPO when DCN still have enough resources. */ - if (pipe_in_use != dc->res_pool->pipe_count && !subvp_in_use) { + if (pipe_in_use != dc->res_pool->pipe_count && !subvp_in_use && !odm_in_use) { dc_release_state(transition_context); return true; } diff --git a/sys/dev/pci/drm/amd/display/dc/core/dc_resource.c b/sys/dev/pci/drm/amd/display/dc/core/dc_resource.c index 658913c6404..79fc7182fb9 100644 --- a/sys/dev/pci/drm/amd/display/dc/core/dc_resource.c +++ b/sys/dev/pci/drm/amd/display/dc/core/dc_resource.c @@ -1444,6 +1444,26 @@ static int acquire_first_split_pipe( split_pipe->plane_res.mpcc_inst = pool->dpps[i]->inst; split_pipe->pipe_idx = i; + split_pipe->stream = stream; + return i; + } else if (split_pipe->prev_odm_pipe && + split_pipe->prev_odm_pipe->plane_state == split_pipe->plane_state) { + split_pipe->prev_odm_pipe->next_odm_pipe = split_pipe->next_odm_pipe; + if (split_pipe->next_odm_pipe) + split_pipe->next_odm_pipe->prev_odm_pipe = split_pipe->prev_odm_pipe; + + if (split_pipe->prev_odm_pipe->plane_state) + resource_build_scaling_params(split_pipe->prev_odm_pipe); + + memset(split_pipe, 0, sizeof(*split_pipe)); + split_pipe->stream_res.tg = pool->timing_generators[i]; + split_pipe->plane_res.hubp = pool->hubps[i]; + split_pipe->plane_res.ipp = pool->ipps[i]; + split_pipe->plane_res.dpp = pool->dpps[i]; + split_pipe->stream_res.opp = pool->opps[i]; + split_pipe->plane_res.mpcc_inst = pool->dpps[i]->inst; + split_pipe->pipe_idx = i; + split_pipe->stream = stream; return i; } -- 2.20.1