From 00812bfc7bcb02faf127ee05f6ac27a5581eb701 Mon Sep 17 00:00:00 2001 From: Nicholas Kazlauskas Date: Fri, 25 Nov 2022 11:30:38 -0500 Subject: [PATCH] drm/amd/display: Add debug option to skip PSR CRTC disable [Why] It's currently tied to Z10 support, and is required for Z10, but we can still support Z10 display off without PSR. We currently need to skip the PSR CRTC disable to prevent stuttering and underflow from occuring during PSR-SU. [How] Add a debug option to allow specifying this separately. Reviewed-by: Robin Chen Acked-by: Stylon Wang Signed-off-by: Nicholas Kazlauskas Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/core/dc_link.c | 2 +- drivers/gpu/drm/amd/display/dc/dc.h | 1 + drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c | 1 + 3 files changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c index 5304e9daf90a3..342e906ae26e4 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c @@ -3378,7 +3378,7 @@ bool dc_link_setup_psr(struct dc_link *link, case FAMILY_YELLOW_CARP: case AMDGPU_FAMILY_GC_10_3_6: case AMDGPU_FAMILY_GC_11_0_1: - if (dc->debug.disable_z10) + if (dc->debug.disable_z10 || dc->debug.psr_skip_crtc_disable) psr_context->psr_level.bits.SKIP_CRTC_DISABLE = true; break; default: diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h index 4a7c0356d9c72..3cb8cf0652040 100644 --- a/drivers/gpu/drm/amd/display/dc/dc.h +++ b/drivers/gpu/drm/amd/display/dc/dc.h @@ -844,6 +844,7 @@ struct dc_debug_options { int crb_alloc_policy_min_disp_count; bool disable_z10; bool enable_z9_disable_interface; + bool psr_skip_crtc_disable; union dpia_debug_options dpia_debug; bool disable_fixed_vs_aux_timeout_wa; bool force_disable_subvp; 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 4fffc7bb80882..f9ea1e86707f2 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c @@ -886,6 +886,7 @@ 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, + .psr_skip_crtc_disable = true, .disable_dmcu = true, .force_abm_enable = false, .timing_trace = false, -- 2.49.0