From d2d7885f75b614a982a73383956570d95d79c23e Mon Sep 17 00:00:00 2001 From: Anthony Koo Date: Sun, 20 Jan 2019 01:41:44 -0500 Subject: [PATCH] drm/amd/display: add seamless boot flag to stream [Why] If we determine the stream we are trying to commit matches HW, we want to try to optimize. [How] Try to acquire the HW resources that are already enabled and optimize. Also skip backend reprogramming Signed-off-by: Anthony Koo Reviewed-by: Aric Cyr Acked-by: Bhawanpreet Lakha Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/core/dc.c | 3 ++ drivers/gpu/drm/amd/display/dc/core/dc_link.c | 14 +++++- drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 56 +++++++++++++++++++++- drivers/gpu/drm/amd/display/dc/dc_stream.h | 4 +- .../amd/display/dc/dce110/dce110_hw_sequencer.c | 4 +- 5 files changed, 75 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index b620520..52f8384 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -1096,6 +1096,9 @@ static enum dc_status dc_commit_state_no_check(struct dc *dc, struct dc_state *c const struct dc_link *link = context->streams[i]->link; struct dc_stream_status *status; + if (context->streams[i]->apply_seamless_boot_optimization) + context->streams[i]->apply_seamless_boot_optimization = false; + if (!context->streams[i]->mode_changed) continue; diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c index e2e7bf2..6d2cef0 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c @@ -2579,13 +2579,23 @@ void core_link_enable_stream( &stream->timing); if (!IS_FPGA_MAXIMUS_DC(core_dc->ctx->dce_environment)) { + bool apply_edp_fast_boot_optimization = + pipe_ctx->stream->apply_edp_fast_boot_optimization; + + pipe_ctx->stream->apply_edp_fast_boot_optimization = false; + resource_build_info_frame(pipe_ctx); core_dc->hwss.update_info_frame(pipe_ctx); + /* Do not touch link on seamless boot optimization. */ + if (pipe_ctx->stream->apply_seamless_boot_optimization) { + pipe_ctx->stream->dpms_off = false; + return; + } + /* eDP lit up by bios already, no need to enable again. */ if (pipe_ctx->stream->signal == SIGNAL_TYPE_EDP && - pipe_ctx->stream->apply_edp_fast_boot_optimization) { - pipe_ctx->stream->apply_edp_fast_boot_optimization = false; + apply_edp_fast_boot_optimization) { pipe_ctx->stream->dpms_off = false; return; } 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 9888bc7..349ab80 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c @@ -1800,6 +1800,51 @@ static void calculate_phy_pix_clks(struct dc_stream_state *stream) stream->phy_pix_clk *= 2; } +static int acquire_resource_from_hw_enabled_state( + struct resource_context *res_ctx, + const struct resource_pool *pool, + struct dc_stream_state *stream) +{ + struct dc_link *link = stream->link; + unsigned int inst; + + /* Check for enabled DIG to identify enabled display */ + if (!link->link_enc->funcs->is_dig_enabled(link->link_enc)) + return -1; + + /* Check for which front end is used by this encoder. + * Note the inst is 1 indexed, where 0 is undefined. + * Note that DIG_FE can source from different OTG but our + * current implementation always map 1-to-1, so this code makes + * the same assumption and doesn't check OTG source. + */ + inst = link->link_enc->funcs->get_dig_frontend(link->link_enc) - 1; + + /* Instance should be within the range of the pool */ + if (inst >= pool->pipe_count) + return -1; + + if (!res_ctx->pipe_ctx[inst].stream) { + struct pipe_ctx *pipe_ctx = &res_ctx->pipe_ctx[inst]; + + pipe_ctx->stream_res.tg = pool->timing_generators[inst]; + pipe_ctx->plane_res.mi = pool->mis[inst]; + pipe_ctx->plane_res.hubp = pool->hubps[inst]; + pipe_ctx->plane_res.ipp = pool->ipps[inst]; + pipe_ctx->plane_res.xfm = pool->transforms[inst]; + pipe_ctx->plane_res.dpp = pool->dpps[inst]; + pipe_ctx->stream_res.opp = pool->opps[inst]; + if (pool->dpps[inst]) + pipe_ctx->plane_res.mpcc_inst = pool->dpps[inst]->inst; + pipe_ctx->pipe_idx = inst; + + pipe_ctx->stream = stream; + return inst; + } + + return -1; +} + enum dc_status resource_map_pool_resources( const struct dc *dc, struct dc_state *context, @@ -1824,8 +1869,15 @@ enum dc_status resource_map_pool_resources( calculate_phy_pix_clks(stream); - /* acquire new resources */ - pipe_idx = acquire_first_free_pipe(&context->res_ctx, pool, stream); + if (stream->apply_seamless_boot_optimization) + pipe_idx = acquire_resource_from_hw_enabled_state( + &context->res_ctx, + pool, + stream); + + if (pipe_idx < 0) + /* acquire new resources */ + pipe_idx = acquire_first_free_pipe(&context->res_ctx, pool, stream); #ifdef CONFIG_DRM_AMD_DC_DCN1_0 if (pipe_idx < 0) diff --git a/drivers/gpu/drm/amd/display/dc/dc_stream.h b/drivers/gpu/drm/amd/display/dc/dc_stream.h index 90f019e..a798694 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_stream.h +++ b/drivers/gpu/drm/amd/display/dc/dc_stream.h @@ -119,7 +119,6 @@ struct dc_stream_state { int phy_pix_clk; enum signal_type signal; bool dpms_off; - bool apply_edp_fast_boot_optimization; void *dm_stream_context; @@ -146,6 +145,9 @@ struct dc_stream_state { uint8_t otg_offset; } out; + bool apply_edp_fast_boot_optimization; + bool apply_seamless_boot_optimization; + uint32_t stream_id; }; diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c index e2d8362..21ceda4 100644 --- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c +++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c @@ -1339,7 +1339,9 @@ static enum dc_status apply_single_controller_ctx_to_hw( } /* */ - dc->hwss.enable_stream_timing(pipe_ctx, context, dc); + /* Do not touch stream timing on seamless boot optimization. */ + if (!pipe_ctx->stream->apply_seamless_boot_optimization) + dc->hwss.enable_stream_timing(pipe_ctx, context, dc); if (pipe_ctx->stream_res.tg->funcs->program_vupdate_interrupt) pipe_ctx->stream_res.tg->funcs->program_vupdate_interrupt( -- 2.7.4