From be4b289f10ca7ef4272fa0339b167827ba5fd2cd Mon Sep 17 00:00:00 2001 From: SivapiriyanKumarasamy Date: Wed, 24 Apr 2019 10:20:15 -0400 Subject: [PATCH] drm/amd/display: Remove DPMS state dependency for fast boot [Why] The DPMS state of a display should not impact whether we want to enable fast boot. Currently fast boot is not enabled when resuming from S4 because of this. [How] Remove check for DPMS state when determining if fast boot can be applied. Signed-off-by: SivapiriyanKumarasamy Reviewed-by: Anthony Koo Acked-by: Bhawanpreet Lakha Signed-off-by: Alex Deucher --- .../display/dc/dce110/dce110_hw_sequencer.c | 85 ++++++++----------- 1 file changed, 35 insertions(+), 50 deletions(-) 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 5919716832a5..d3c821f3899b 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 @@ -1496,10 +1496,11 @@ static void disable_vga_and_power_gate_all_controllers( } } -static struct dc_link *get_link_for_edp(struct dc *dc) +static struct dc_link *get_edp_link(struct dc *dc) { int i; + // report any eDP links, even unconnected DDI's for (i = 0; i < dc->link_count; i++) { if (dc->links[i]->connector_signal == SIGNAL_TYPE_EDP) return dc->links[i]; @@ -1507,23 +1508,13 @@ static struct dc_link *get_link_for_edp(struct dc *dc) return NULL; } -static struct dc_link *get_link_for_edp_to_turn_off( +static struct dc_link *get_edp_link_with_sink( struct dc *dc, struct dc_state *context) { int i; struct dc_link *link = NULL; - /* check if eDP panel is suppose to be set mode, if yes, no need to disable */ - for (i = 0; i < context->stream_count; i++) { - if (context->streams[i]->signal == SIGNAL_TYPE_EDP) { - if (context->streams[i]->dpms_off == true) - return context->streams[i]->sink->link; - else - return NULL; - } - } - /* check if there is an eDP panel not in use */ for (i = 0; i < dc->link_count; i++) { if (dc->links[i]->local_sink && @@ -1546,59 +1537,53 @@ static struct dc_link *get_link_for_edp_to_turn_off( void dce110_enable_accelerated_mode(struct dc *dc, struct dc_state *context) { int i; - struct dc_link *edp_link_to_turnoff = NULL; - struct dc_link *edp_link = get_link_for_edp(dc); - bool can_edp_fast_boot_optimize = false; - bool apply_edp_fast_boot_optimization = false; + struct dc_link *edp_link_with_sink = get_edp_link_with_sink(dc, context); + struct dc_link *edp_link = get_edp_link(dc); + bool can_apply_edp_fast_boot = false; bool can_apply_seamless_boot = false; - for (i = 0; i < context->stream_count; i++) { - if (context->streams[i]->apply_seamless_boot_optimization) { - can_apply_seamless_boot = true; - break; - } - } - if (dc->hwss.init_pipes) dc->hwss.init_pipes(dc, context); - if (edp_link) { - /* this seems to cause blank screens on DCE8 */ - if ((dc->ctx->dce_version == DCE_VERSION_8_0) || - (dc->ctx->dce_version == DCE_VERSION_8_1) || - (dc->ctx->dce_version == DCE_VERSION_8_3)) - can_edp_fast_boot_optimize = false; - else - can_edp_fast_boot_optimize = - edp_link->link_enc->funcs->is_dig_enabled(edp_link->link_enc); + // Check fastboot support, disable on DCE8 because of blank screens + if (edp_link && dc->ctx->dce_version != DCE_VERSION_8_0 && + dc->ctx->dce_version != DCE_VERSION_8_1 && + dc->ctx->dce_version != DCE_VERSION_8_3) { + + // enable fastboot if backend is enabled on eDP + if (edp_link->link_enc->funcs->is_dig_enabled(edp_link->link_enc)) { + /* Find eDP stream and set optimization flag */ + for (i = 0; i < context->stream_count; i++) { + if (context->streams[i]->signal == SIGNAL_TYPE_EDP) { + context->streams[i]->apply_edp_fast_boot_optimization = true; + can_apply_edp_fast_boot = true; + break; + } + } + } } - if (can_edp_fast_boot_optimize) - edp_link_to_turnoff = get_link_for_edp_to_turn_off(dc, context); - - /* if OS doesn't light up eDP and eDP link is available, we want to disable - * If resume from S4/S5, should optimization. - */ - if (can_edp_fast_boot_optimize && !edp_link_to_turnoff) { - /* Find eDP stream and set optimization flag */ - for (i = 0; i < context->stream_count; i++) { - if (context->streams[i]->signal == SIGNAL_TYPE_EDP) { - context->streams[i]->apply_edp_fast_boot_optimization = true; - apply_edp_fast_boot_optimization = true; - } + // Check seamless boot support + for (i = 0; i < context->stream_count; i++) { + if (context->streams[i]->apply_seamless_boot_optimization) { + can_apply_seamless_boot = true; + break; } } - if (!apply_edp_fast_boot_optimization && !can_apply_seamless_boot) { - if (edp_link_to_turnoff) { + /* eDP should not have stream in resume from S4 and so even with VBios post + * it should get turned off + */ + if (!can_apply_edp_fast_boot && !can_apply_seamless_boot) { + if (edp_link_with_sink) { /*turn off backlight before DP_blank and encoder powered down*/ - dc->hwss.edp_backlight_control(edp_link_to_turnoff, false); + dc->hwss.edp_backlight_control(edp_link_with_sink, false); } /*resume from S3, no vbios posting, no need to power down again*/ power_down_all_hw_blocks(dc); disable_vga_and_power_gate_all_controllers(dc); - if (edp_link_to_turnoff) - dc->hwss.edp_power_control(edp_link_to_turnoff, false); + if (edp_link_with_sink) + dc->hwss.edp_power_control(edp_link_with_sink, false); } bios_set_scratch_acc_mode_change(dc->ctx->dc_bios); } -- 2.45.2