From: Alvin Lee <[email protected]> [Description] - When transitioning a pipe in use (non-phantom) to become a phantom pipe, we must fully disable the pipe first before doing any phantom pipe programming - Move phantom OTG enablement to after "regular" front-end programming sequence (including wait for vupdate) - If a pipe is being transitioned into a phantom pipe, fully disable it first
Reviewed-by: Jun Lei <[email protected]> Acked-by: Tom Chung <[email protected]> Signed-off-by: Alvin Lee <[email protected]> --- drivers/gpu/drm/amd/display/dc/core/dc.c | 54 +++++++++++++------ .../drm/amd/display/dc/dcn20/dcn20_hwseq.c | 38 +++++++------ .../drm/amd/display/dc/dcn32/dcn32_hwseq.c | 27 ++++++++++ .../drm/amd/display/dc/dcn32/dcn32_hwseq.h | 2 + .../gpu/drm/amd/display/dc/dcn32/dcn32_init.c | 1 + .../gpu/drm/amd/display/dc/inc/hw_sequencer.h | 1 + 6 files changed, 87 insertions(+), 36 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index 0a252a65a678..1c3de3a1671e 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -3408,22 +3408,6 @@ static void commit_planes_for_stream(struct dc *dc, dc->hwss.pipe_control_lock(dc, top_pipe_to_program, true); } - if (update_type != UPDATE_TYPE_FAST) { - for (i = 0; i < dc->res_pool->pipe_count; i++) { - struct pipe_ctx *new_pipe = &context->res_ctx.pipe_ctx[i]; - - if ((new_pipe->stream && new_pipe->stream->mall_stream_config.type == SUBVP_PHANTOM) || - subvp_prev_use) { - // If old context or new context has phantom pipes, apply - // the phantom timings now. We can't change the phantom - // pipe configuration safely without driver acquiring - // the DMCUB lock first. - dc->hwss.apply_ctx_to_hw(dc, context); - break; - } - } - } - dc_dmub_update_dirty_rect(dc, surface_count, stream, srf_updates, context); if (update_type != UPDATE_TYPE_FAST) { @@ -3652,6 +3636,44 @@ static void commit_planes_for_stream(struct dc *dc, top_pipe_to_program->stream_res.tg); } + /* For phantom pipe OTG enable, it has to be done after any previous pipe + * that was in use has already been programmed at gotten its double buffer + * update for "disable". + */ + if (update_type != UPDATE_TYPE_FAST) { + for (i = 0; i < dc->res_pool->pipe_count; i++) { + struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i]; + struct pipe_ctx *old_pipe = &dc->current_state->res_ctx.pipe_ctx[i]; + + /* If an active, non-phantom pipe is being transitioned into a phantom + * pipe, wait for the double buffer update to complete first before we do + * ANY phantom pipe programming. + */ + if (pipe->stream && pipe->stream->mall_stream_config.type == SUBVP_PHANTOM && + old_pipe->stream && old_pipe->stream->mall_stream_config.type != SUBVP_PHANTOM) { + old_pipe->stream_res.tg->funcs->wait_for_state( + old_pipe->stream_res.tg, + CRTC_STATE_VBLANK); + old_pipe->stream_res.tg->funcs->wait_for_state( + old_pipe->stream_res.tg, + CRTC_STATE_VACTIVE); + } + } + for (i = 0; i < dc->res_pool->pipe_count; i++) { + struct pipe_ctx *new_pipe = &context->res_ctx.pipe_ctx[i]; + + if ((new_pipe->stream && new_pipe->stream->mall_stream_config.type == SUBVP_PHANTOM) || + subvp_prev_use) { + // If old context or new context has phantom pipes, apply + // the phantom timings now. We can't change the phantom + // pipe configuration safely without driver acquiring + // the DMCUB lock first. + dc->hwss.apply_ctx_to_hw(dc, context); + break; + } + } + } + if (update_type != UPDATE_TYPE_FAST) dc->hwss.post_unlock_program_front_end(dc, context); if (update_type != UPDATE_TYPE_FAST) diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c index 64fcb378594f..3f3d4daa6294 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c @@ -1310,6 +1310,19 @@ static void dcn20_detect_pipe_changes(struct pipe_ctx *old_pipe, struct pipe_ctx { new_pipe->update_flags.raw = 0; + /* If non-phantom pipe is being transitioned to a phantom pipe, + * set disable and return immediately. This is because the pipe + * that was previously in use must be fully disabled before we + * can "enable" it as a phantom pipe (since the OTG will certainly + * be different). The post_unlock sequence will set the correct + * update flags to enable the phantom pipe. + */ + if (old_pipe->plane_state && !old_pipe->plane_state->is_phantom && + new_pipe->plane_state && new_pipe->plane_state->is_phantom) { + new_pipe->update_flags.bits.disable = 1; + return; + } + /* Exit on unchanged, unused pipe */ if (!old_pipe->plane_state && !new_pipe->plane_state) return; @@ -1882,26 +1895,6 @@ void dcn20_post_unlock_program_front_end( } } - for (i = 0; i < dc->res_pool->pipe_count; i++) { - struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i]; - struct pipe_ctx *old_pipe = &dc->current_state->res_ctx.pipe_ctx[i]; - - /* If an active, non-phantom pipe is being transitioned into a phantom - * pipe, wait for the double buffer update to complete first before we do - * phantom pipe programming (HUBP_VTG_SEL updates right away so that can - * cause issues). - */ - if (pipe->stream && pipe->stream->mall_stream_config.type == SUBVP_PHANTOM && - old_pipe->stream && old_pipe->stream->mall_stream_config.type != SUBVP_PHANTOM) { - old_pipe->stream_res.tg->funcs->wait_for_state( - old_pipe->stream_res.tg, - CRTC_STATE_VBLANK); - old_pipe->stream_res.tg->funcs->wait_for_state( - old_pipe->stream_res.tg, - CRTC_STATE_VACTIVE); - } - } - for (i = 0; i < dc->res_pool->pipe_count; i++) { struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i]; @@ -1913,6 +1906,11 @@ void dcn20_post_unlock_program_front_end( */ while (pipe) { if (pipe->stream && pipe->stream->mall_stream_config.type == SUBVP_PHANTOM) { + /* When turning on the phantom pipe we want to run through the + * entire enable sequence, so apply all the "enable" flags. + */ + if (dc->hwss.apply_update_flags_for_phantom) + dc->hwss.apply_update_flags_for_phantom(pipe); if (dc->hwss.update_phantom_vp_position) dc->hwss.update_phantom_vp_position(dc, context, pipe); dcn20_program_pipe(dc, pipe, context); diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c index 7eb47ea9d4bb..763311ffb967 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c @@ -1366,6 +1366,33 @@ void dcn32_update_phantom_vp_position(struct dc *dc, } } +/* Treat the phantom pipe as if it needs to be fully enabled. + * If the pipe was previously in use but not phantom, it would + * have been disabled earlier in the sequence so we need to run + * the full enable sequence. + */ +void dcn32_apply_update_flags_for_phantom(struct pipe_ctx *phantom_pipe) +{ + phantom_pipe->update_flags.raw = 0; + if (phantom_pipe->stream && phantom_pipe->stream->mall_stream_config.type == SUBVP_PHANTOM) { + if (phantom_pipe->stream && phantom_pipe->plane_state) { + phantom_pipe->update_flags.bits.enable = 1; + phantom_pipe->update_flags.bits.mpcc = 1; + phantom_pipe->update_flags.bits.dppclk = 1; + phantom_pipe->update_flags.bits.hubp_interdependent = 1; + phantom_pipe->update_flags.bits.hubp_rq_dlg_ttu = 1; + phantom_pipe->update_flags.bits.gamut_remap = 1; + phantom_pipe->update_flags.bits.scaler = 1; + phantom_pipe->update_flags.bits.viewport = 1; + phantom_pipe->update_flags.bits.det_size = 1; + if (!phantom_pipe->top_pipe && !phantom_pipe->prev_odm_pipe) { + phantom_pipe->update_flags.bits.odm = 1; + phantom_pipe->update_flags.bits.global_sync = 1; + } + } + } +} + bool dcn32_dsc_pg_status( struct dce_hwseq *hws, unsigned int dsc_inst) diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.h b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.h index ac3657a5b9ea..7de36529cf99 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.h +++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.h @@ -92,6 +92,8 @@ void dcn32_update_phantom_vp_position(struct dc *dc, struct dc_state *context, struct pipe_ctx *phantom_pipe); +void dcn32_apply_update_flags_for_phantom(struct pipe_ctx *phantom_pipe); + bool dcn32_dsc_pg_status( struct dce_hwseq *hws, unsigned int dsc_inst); diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_init.c b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_init.c index 45a949ba6f3f..dc4649458567 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_init.c +++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_init.c @@ -110,6 +110,7 @@ static const struct hw_sequencer_funcs dcn32_funcs = { .update_visual_confirm_color = dcn20_update_visual_confirm_color, .update_phantom_vp_position = dcn32_update_phantom_vp_position, .update_dsc_pg = dcn32_update_dsc_pg, + .apply_update_flags_for_phantom = dcn32_apply_update_flags_for_phantom, }; static const struct hwseq_private_funcs dcn32_private_funcs = { diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h b/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h index d04b68dad413..c43523f9ff6d 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h +++ b/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h @@ -263,6 +263,7 @@ struct hw_sequencer_funcs { void (*update_phantom_vp_position)(struct dc *dc, struct dc_state *context, struct pipe_ctx *phantom_pipe); + void (*apply_update_flags_for_phantom)(struct pipe_ctx *phantom_pipe); void (*commit_subvp_config)(struct dc *dc, struct dc_state *context); void (*subvp_pipe_control_lock)(struct dc *dc, -- 2.25.1
