diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/dev/pci/drm/amd/display/dc/dcn314/dcn314_resource.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/sys/dev/pci/drm/amd/display/dc/dcn314/dcn314_resource.c b/sys/dev/pci/drm/amd/display/dc/dcn314/dcn314_resource.c index 2f9c6d64b98..ffaa4e5b3fc 100644 --- a/sys/dev/pci/drm/amd/display/dc/dcn314/dcn314_resource.c +++ b/sys/dev/pci/drm/amd/display/dc/dcn314/dcn314_resource.c @@ -1689,6 +1689,23 @@ static void dcn314_get_panel_config_defaults(struct dc_panel_config *panel_confi *panel_config = panel_config_defaults; } +static bool filter_modes_for_single_channel_workaround(struct dc *dc, + struct dc_state *context) +{ + // Filter 2K@240Hz+8K@24fps above combination timing if memory only has single dimm LPDDR + if (dc->clk_mgr->bw_params->vram_type == 34 && dc->clk_mgr->bw_params->num_channels < 2) { + int total_phy_pix_clk = 0; + + for (int i = 0; i < context->stream_count; i++) + if (context->res_ctx.pipe_ctx[i].stream) + total_phy_pix_clk += context->res_ctx.pipe_ctx[i].stream->phy_pix_clk; + + if (total_phy_pix_clk >= (1148928+826260)) //2K@240Hz+8K@24fps + return true; + } + return false; +} + bool dcn314_validate_bandwidth(struct dc *dc, struct dc_state *context, bool fast_validate) @@ -1704,6 +1721,9 @@ bool dcn314_validate_bandwidth(struct dc *dc, BW_VAL_TRACE_COUNT(); + if (filter_modes_for_single_channel_workaround(dc, context)) + goto validate_fail; + DC_FP_START(); // do not support self refresh only out = dcn30_internal_validate_bw(dc, context, pipes, &pipe_cnt, &vlevel, fast_validate, false); |