diff options
| author | Aurabindo Pillai <aurabindo.pillai@amd.com> | 2024-09-03 10:10:44 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-09-18 16:15:08 -0400 |
| commit | f510dd5c210bf8cc22e4be48cbbda3cb754219f5 (patch) | |
| tree | 3f943a72e20c8c651d87542eb258f69f06339411 /drivers/gpu | |
| parent | b6499840cafca25175f43ebd601913bf31d06f16 (diff) | |
| download | lwn-f510dd5c210bf8cc22e4be48cbbda3cb754219f5.tar.gz lwn-f510dd5c210bf8cc22e4be48cbbda3cb754219f5.zip | |
drm/amd/display: Fix underflow when setting underscan on DCN401
[WHY & HOW]
When underscan is set through xrandr, it causes the stream destination
rect to change in a way it becomes complicated to handle the calculations
for subvp. Since this is a corner case, disable subvp when underscan is
set.
Fix the existing check that is supposed to catch this corner case by
adding a check based on the parameters in the stream
Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Dillon Varone <dillon.varone@amd.com>
Reviewed-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_translation_helper.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_translation_helper.c b/drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_translation_helper.c index b0d9aed0f265..8697eac1e1f7 100644 --- a/drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_translation_helper.c +++ b/drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_translation_helper.c @@ -858,7 +858,9 @@ static void populate_dml21_plane_config_from_plane_state(struct dml2_context *dm plane->immediate_flip = plane_state->flip_immediate; - plane->composition.rect_out_height_spans_vactive = plane_state->dst_rect.height >= stream->timing.v_addressable; + plane->composition.rect_out_height_spans_vactive = + plane_state->dst_rect.height >= stream->timing.v_addressable && + stream->dst.height >= stream->timing.v_addressable; } //TODO : Could be possibly moved to a common helper layer. |