diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h index c3814f40a102b33bc7dbc0831dcd5e4023654c5f..f1ea9031a191a7ef354d02db875f2683813f7386 100644 --- a/drivers/gpu/drm/amd/display/dc/dc.h +++ b/drivers/gpu/drm/amd/display/dc/dc.h @@ -795,6 +795,7 @@ struct dc_debug_options { unsigned int force_odm_combine; //bit vector based on otg inst unsigned int seamless_boot_odm_combine; unsigned int force_odm_combine_4to1; //bit vector based on otg inst + int minimum_z8_residency_time; bool disable_z9_mpc; unsigned int force_fclk_khz; bool enable_tri_buf; diff --git a/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c b/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c index 54ed3de869d3b001d98d8f8c0ab972fe7d819065..8fc89aeb86d446309922f985115276d3d33feba6 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c @@ -887,6 +887,7 @@ static const struct dc_plane_cap plane_cap = { static const struct dc_debug_options debug_defaults_drv = { .disable_z10 = false, .enable_z9_disable_interface = true, + .minimum_z8_residency_time = 1000, .psr_skip_crtc_disable = true, .disable_dmcu = true, .force_abm_enable = false, diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c index d3ba65efe1d2e986ba7c92d81bcd1d3e318a076b..f3cfc144e35875269b23ed0c0627b44dedc7d50d 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c +++ b/drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c @@ -973,7 +973,8 @@ static enum dcn_zstate_support_state decide_zstate_support(struct dc *dc, struc else if (context->stream_count == 1 && context->streams[0]->signal == SIGNAL_TYPE_EDP) { struct dc_link *link = context->streams[0]->sink->link; struct dc_stream_status *stream_status = &context->stream_status[0]; - bool allow_z8 = context->bw_ctx.dml.vba.StutterPeriod > 1000.0; + int minmum_z8_residency = dc->debug.minimum_z8_residency_time > 0 ? dc->debug.minimum_z8_residency_time : 1000; + bool allow_z8 = context->bw_ctx.dml.vba.StutterPeriod > (double)minmum_z8_residency; bool is_pwrseq0 = link->link_index == 0; if (dc_extended_blank_supported(dc)) {