diff options
| author | Dillon Varone <dillon.varone@amd.com> | 2024-07-29 18:17:55 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-08-13 10:44:32 -0400 |
| commit | cc2991203c9d4e23051dbe5bcb1fc700fea26992 (patch) | |
| tree | b6624e40da2fd4051bd9d524f4d0660ea456cf20 /drivers/gpu/drm | |
| parent | drm/amd/display: Add null check for 'afb' in amdgpu_dm_plane_handle_cursor_up... (diff) | |
| download | linux-cc2991203c9d4e23051dbe5bcb1fc700fea26992.tar.gz linux-cc2991203c9d4e23051dbe5bcb1fc700fea26992.zip | |
drm/amd/display: Reduce redundant minimal transitions due to SubVP
[WHY]
Stream ID's associated with phantom pipes can change often as they
are reconstructed on full updates, however they can remain identical
depending on the required update.
[HOW]
In the case phantom streams and pipe topologies remain the same
between updates, mark the transition as seamless.
Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Signed-off-by: Dillon Varone <dillon.varone@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c index c3bbbfd1be94..d75a811c90d9 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c @@ -1719,6 +1719,28 @@ void dcn32_blank_phantom(struct dc *dc, hws->funcs.wait_for_blank_complete(opp); } +/* phantom stream id's can change often, but can be identical between contexts. +* This function checks for the condition the streams are identical to avoid +* redundant pipe transitions. +*/ +static bool is_subvp_phantom_topology_transition_seamless( + const struct dc_state *cur_ctx, + const struct dc_state *new_ctx, + const struct pipe_ctx *cur_pipe, + const struct pipe_ctx *new_pipe) +{ + enum mall_stream_type cur_pipe_type = dc_state_get_pipe_subvp_type(cur_ctx, cur_pipe); + enum mall_stream_type new_pipe_type = dc_state_get_pipe_subvp_type(new_ctx, new_pipe); + + const struct dc_stream_state *cur_paired_stream = dc_state_get_paired_subvp_stream(cur_ctx, cur_pipe->stream); + const struct dc_stream_state *new_paired_stream = dc_state_get_paired_subvp_stream(new_ctx, new_pipe->stream); + + return cur_pipe_type == SUBVP_PHANTOM && + cur_pipe_type == new_pipe_type && + cur_paired_stream && new_paired_stream && + cur_paired_stream->stream_id == new_paired_stream->stream_id; +} + bool dcn32_is_pipe_topology_transition_seamless(struct dc *dc, const struct dc_state *cur_ctx, const struct dc_state *new_ctx) @@ -1737,7 +1759,8 @@ bool dcn32_is_pipe_topology_transition_seamless(struct dc *dc, continue; else if (resource_is_pipe_type(cur_pipe, OTG_MASTER)) { if (resource_is_pipe_type(new_pipe, OTG_MASTER)) - if (cur_pipe->stream->stream_id == new_pipe->stream->stream_id) + if (cur_pipe->stream->stream_id == new_pipe->stream->stream_id || + is_subvp_phantom_topology_transition_seamless(cur_ctx, new_ctx, cur_pipe, new_pipe)) /* OTG master with the same stream is seamless */ continue; } else if (resource_is_pipe_type(cur_pipe, OPP_HEAD)) { |