From c6d3c7b6309726fbe93cf595d6de326fb8295a64 Mon Sep 17 00:00:00 2001 From: Alex Hung Date: Wed, 1 Feb 2023 18:54:51 -0700 Subject: [PATCH] drm/amd/display: Add writeback enable/disable in dc [WHAT] The enable and disable writeback calls need to be included in the coressponding functions in dc_stream. Reviewed-by: Harry Wentland Signed-off-by: Alex Hung Signed-off-by: Alex Deucher --- .../gpu/drm/amd/display/dc/core/dc_stream.c | 33 +++++++++++++++++++ .../drm/amd/display/dc/dcn30/dcn30_hwseq.c | 4 +++ 2 files changed, 37 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c index dad1c85a1df3e..8b7f138bce0f3 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c @@ -516,6 +516,25 @@ bool dc_stream_add_writeback(struct dc *dc, struct dwbc *dwb = dc->res_pool->dwbc[wb_info->dwb_pipe_inst]; dwb->otg_inst = stream_status->primary_otg_inst; } + + if (!dc->hwss.update_bandwidth(dc, dc->current_state)) { + dm_error("DC: update_bandwidth failed!\n"); + return false; + } + + /* enable writeback */ + if (dc->hwss.enable_writeback) { + struct dwbc *dwb = dc->res_pool->dwbc[wb_info->dwb_pipe_inst]; + + if (dwb->funcs->is_enabled(dwb)) { + /* writeback pipe already enabled, only need to update */ + dc->hwss.update_writeback(dc, wb_info, dc->current_state); + } else { + /* Enable writeback pipe from scratch*/ + dc->hwss.enable_writeback(dc, wb_info, dc->current_state); + } + } + return true; } @@ -560,6 +579,20 @@ bool dc_stream_remove_writeback(struct dc *dc, } stream->num_wb_info = j; + /* recalculate and apply DML parameters */ + if (!dc->hwss.update_bandwidth(dc, dc->current_state)) { + dm_error("DC: update_bandwidth failed!\n"); + return false; + } + + /* disable writeback */ + if (dc->hwss.disable_writeback) { + struct dwbc *dwb = dc->res_pool->dwbc[dwb_pipe_inst]; + + if (dwb->funcs->is_enabled(dwb)) + dc->hwss.disable_writeback(dc, dwb_pipe_inst); + } + return true; } diff --git a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c index fce9b33c0f881..af9a9fc7db48d 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c @@ -367,6 +367,10 @@ void dcn30_enable_writeback( DC_LOG_DWB("%s dwb_pipe_inst = %d, mpcc_inst = %d",\ __func__, wb_info->dwb_pipe_inst,\ wb_info->mpcc_inst); + + /* Warmup interface */ + dcn30_mmhubbub_warmup(dc, 1, wb_info); + /* Update writeback pipe */ dcn30_set_writeback(dc, wb_info, context); -- 2.30.2