From: Eric Yang <[email protected]> [Why] Previous logic to update display count in commit_planes_do_stream_update doesn't cover all cases.
[How] Update display count as part of clock updates. Count virtual stream as active to work around headless situation. Signed-off-by: Eric Yang <[email protected]> Reviewed-by: Dmytro Laktyushkin <[email protected]> Acked-by: Bhawanpreet Lakha <[email protected]> --- drivers/gpu/drm/amd/display/dc/core/dc.c | 35 +---------------- drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dccg.c | 47 +++++++++++++++++++++-- 2 files changed, 45 insertions(+), 37 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index 20dd062d7a33..a8d8358058ff 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -1365,35 +1365,6 @@ static struct dc_stream_status *stream_get_status( static const enum surface_update_type update_surface_trace_level = UPDATE_TYPE_FULL; -static void notify_display_count_to_smu( - struct dc *dc, - struct dc_state *context) -{ - int i, display_count; - struct pp_smu_funcs_rv *pp_smu = dc->res_pool->pp_smu; - - /* - * if function pointer not set up, this message is - * sent as part of pplib_apply_display_requirements. - * So just return. - */ - if (!pp_smu || !pp_smu->set_display_count) - return; - - display_count = 0; - for (i = 0; i < context->stream_count; i++) { - const struct dc_stream_state *stream = context->streams[i]; - - /* only notify active stream */ - if (stream->dpms_off) - continue; - - display_count++; - } - - pp_smu->set_display_count(&pp_smu->pp_smu, display_count); -} - static void commit_planes_do_stream_update(struct dc *dc, struct dc_stream_state *stream, struct dc_stream_update *stream_update, @@ -1444,15 +1415,13 @@ static void commit_planes_do_stream_update(struct dc *dc, if (stream_update->dpms_off) { if (*stream_update->dpms_off) { core_link_disable_stream(pipe_ctx, KEEP_ACQUIRED_RESOURCE); - notify_display_count_to_smu(dc, dc->current_state); + dc->hwss.optimize_bandwidth(dc, dc->current_state); } else { - notify_display_count_to_smu(dc, dc->current_state); + dc->hwss.prepare_bandwidth(dc, dc->current_state); core_link_enable_stream(dc->current_state, pipe_ctx); } } - - if (stream_update->abm_level && pipe_ctx->stream_res.abm) { if (pipe_ctx->stream_res.tg->funcs->is_blanked) { // if otg funcs defined check if blanked before programming diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dccg.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dccg.c index abfe82f02fd8..0a9f944c961d 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dccg.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dccg.c @@ -139,6 +139,29 @@ static void dcn1_ramp_up_dispclk_with_dpp(struct dccg *dccg, struct dc_clocks *n dccg->clks.max_supported_dppclk_khz = new_clocks->max_supported_dppclk_khz; } +static int get_active_display_cnt( + struct dc *dc, + struct dc_state *context) +{ + int i, display_count; + + display_count = 0; + for (i = 0; i < context->stream_count; i++) { + const struct dc_stream_state *stream = context->streams[i]; + + /* + * Only notify active stream or virtual stream. + * Need to notify virtual stream to work around + * headless case. HPD does not fire when system is in + * S0i2. + */ + if (!stream->dpms_off || stream->signal == SIGNAL_TYPE_VIRTUAL) + display_count++; + } + + return display_count; +} + static void dcn1_update_clocks(struct dccg *dccg, struct dc_state *context, bool safe_to_lower) @@ -152,11 +175,27 @@ static void dcn1_update_clocks(struct dccg *dccg, struct dm_pp_clock_for_voltage_req clock_voltage_req = {0}; bool send_request_to_increase = false; bool send_request_to_lower = false; + int display_count; + + bool enter_display_off = false; + + display_count = get_active_display_cnt(dc, context); + + if (display_count == 0) + enter_display_off = true; - if (new_clocks->phyclk_khz) - smu_req.display_count = 1; - else - smu_req.display_count = 0; + if (enter_display_off == safe_to_lower) { + /* + * Notify SMU active displays + * if function pointer not set up, this message is + * sent as part of pplib_apply_display_requirements. + */ + if (pp_smu->set_display_count) + pp_smu->set_display_count(&pp_smu->pp_smu, display_count); + else + smu_req.display_count = display_count; + + } if (new_clocks->dispclk_khz > dccg->clks.dispclk_khz || new_clocks->phyclk_khz > dccg->clks.phyclk_khz -- 2.14.1 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
