drm/amd/display: Change default size for dummy plane in DML2
[WHY & HOW]
Currently, to map dc states into dml_display_cfg,
We create a dummy plane if the stream doesn't have any planes
attached to it. This dummy plane uses max addersable width height.
This results in certain mode validations failing when they shouldn't.
Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Chaitanya Dhere <chaitanya.dhere@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Swapnil Patel <swapnil.patel@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml2_translation_helper.c b/drivers/gpu/drm/amd/display/dc/dml2/dml2_translation_helper.c
index 1ba6933..17a58f4 100644
--- a/drivers/gpu/drm/amd/display/dc/dml2/dml2_translation_helper.c
+++ b/drivers/gpu/drm/amd/display/dc/dml2/dml2_translation_helper.c
@@ -824,13 +824,25 @@
static void populate_dummy_dml_plane_cfg(struct dml_plane_cfg_st *out, unsigned int location, const struct dc_stream_state *in)
{
+ dml_uint_t width, height;
+
+ if (in->timing.h_addressable > 3840)
+ width = 3840;
+ else
+ width = in->timing.h_addressable; // 4K max
+
+ if (in->timing.v_addressable > 2160)
+ height = 2160;
+ else
+ height = in->timing.v_addressable; // 4K max
+
out->CursorBPP[location] = dml_cur_32bit;
out->CursorWidth[location] = 256;
out->GPUVMMinPageSizeKBytes[location] = 256;
- out->ViewportWidth[location] = in->timing.h_addressable;
- out->ViewportHeight[location] = in->timing.v_addressable;
+ out->ViewportWidth[location] = width;
+ out->ViewportHeight[location] = height;
out->ViewportStationary[location] = false;
out->ViewportWidthChroma[location] = 0;
out->ViewportHeightChroma[location] = 0;
@@ -849,7 +861,7 @@
out->HTapsChroma[location] = 0;
out->VTapsChroma[location] = 0;
out->SourceScan[location] = dml_rotation_0;
- out->ScalerRecoutWidth[location] = in->timing.h_addressable;
+ out->ScalerRecoutWidth[location] = width;
out->LBBitPerPixel[location] = 57;
