From: Charlene Liu Charlene.Liu@amd.com
[WHY & HOW] 1) We did linear/non linear transition properly long ago 2) We used that path to handle SystemDisplayEnable 3) We fixed a SystemDisplayEnable inability to fallback to passive by impacting the transition flow generically 4) AFMF later relied on the generic transition behavior
Separating the two flows to make (3) non-generic is the best immediate coarse of action.
DC can discern SSAMPO3 very easily from SDE.
Cc: Mario Limonciello mario.limonciello@amd.com Cc: Alex Deucher alexander.deucher@amd.com Cc: stable@vger.kernel.org Reviewed-by: Chris Park chris.park@amd.com Signed-off-by: Charlene Liu Charlene.Liu@amd.com Signed-off-by: Alex Hung alex.hung@amd.com --- drivers/gpu/drm/amd/display/dc/core/dc.c | 6 +++--- drivers/gpu/drm/amd/display/dc/dc.h | 1 + 2 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index 67812fbbb006..a1652130e4be 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -2376,7 +2376,7 @@ static bool is_surface_in_context( return false; }
-static enum surface_update_type get_plane_info_update_type(const struct dc_surface_update *u) +static enum surface_update_type get_plane_info_update_type(const struct dc *dc, const struct dc_surface_update *u) { union surface_update_flags *update_flags = &u->surface->update_flags; enum surface_update_type update_type = UPDATE_TYPE_FAST; @@ -2455,7 +2455,7 @@ static enum surface_update_type get_plane_info_update_type(const struct dc_surfa /* todo: below are HW dependent, we should add a hook to * DCE/N resource and validated there. */ - if (u->plane_info->tiling_info.gfx9.swizzle != DC_SW_LINEAR) { + if (!dc->debug.skip_full_updated_if_possible) { /* swizzled mode requires RQ to be setup properly, * thus need to run DML to calculate RQ settings */ @@ -2547,7 +2547,7 @@ static enum surface_update_type det_surface_update(const struct dc *dc,
update_flags->raw = 0; // Reset all flags
- type = get_plane_info_update_type(u); + type = get_plane_info_update_type(dc, u); elevate_update_type(&overall_type, type);
type = get_scaling_info_update_type(dc, u); diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h index e659f4fed19f..78ebe636389e 100644 --- a/drivers/gpu/drm/amd/display/dc/dc.h +++ b/drivers/gpu/drm/amd/display/dc/dc.h @@ -1060,6 +1060,7 @@ struct dc_debug_options { bool enable_ips_visual_confirm; unsigned int sharpen_policy; unsigned int scale_to_sharpness_policy; + bool skip_full_updated_if_possible; };