From: Alvin Lee Alvin.Lee2@amd.com
[ Upstream commit e4c1b01bc35b04e15782608165aa85b9e1724f7b ]
[Description] - Whenever disabling a phantom pipe, we must run through the minimal transition sequence - In the case where SetVisibility = false for the main pipe, we also need to run through the min transtion when disabling the phantom pipes
Reviewed-by: Jun Lei Jun.Lei@amd.com Acked-by: Tom Chung chiahsuan.chung@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 Stable-dep-of: 59de751e3845 ("drm/amd/display: add ODM case when looking for first split pipe") Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/display/dc/core/dc.c | 31 +++++++++++++++++------- 1 file changed, 22 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index cbbad496cfc63..c429748c86cdb 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -3731,17 +3731,17 @@ static bool could_mpcc_tree_change_for_active_pipes(struct dc *dc, } }
- /* For SubVP when adding MPO video we need to add a minimal transition. + /* For SubVP when adding or removing planes we need to add a minimal transition + * (even when disabling all planes). Whenever disabling a phantom pipe, we + * must use the minimal transition path to disable the pipe correctly. */ if (cur_stream_status && stream->mall_stream_config.type == SUBVP_MAIN) { /* determine if minimal transition is required due to SubVP*/ - if (surface_count > 0) { - if (cur_stream_status->plane_count > surface_count) { - force_minimal_pipe_splitting = true; - } else if (cur_stream_status->plane_count < surface_count) { - force_minimal_pipe_splitting = true; - *is_plane_addition = true; - } + if (cur_stream_status->plane_count > surface_count) { + force_minimal_pipe_splitting = true; + } else if (cur_stream_status->plane_count < surface_count) { + force_minimal_pipe_splitting = true; + *is_plane_addition = true; } }
@@ -3758,6 +3758,7 @@ static bool commit_minimal_transition_state(struct dc *dc, enum dc_status ret = DC_ERROR_UNEXPECTED; unsigned int i, j; unsigned int pipe_in_use = 0; + bool subvp_in_use = false;
if (!transition_context) return false; @@ -3770,6 +3771,18 @@ static bool commit_minimal_transition_state(struct dc *dc, pipe_in_use++; }
+ /* If SubVP is enabled and we are adding or removing planes from any main subvp + * 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->stream->mall_stream_config.type == SUBVP_PHANTOM) { + subvp_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 @@ -3778,7 +3791,7 @@ 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) { + if (pipe_in_use != dc->res_pool->pipe_count && !subvp_in_use) { dc_release_state(transition_context); return true; }