github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-24 15:12:13 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

drm/amd/display: Set chroma taps to 1 if luma taps are 1

Browse Source 
When luma is unscaled we also want chroma to be pixel-perfect.
When luma taps are > 1 the result will be a blurred luma plane,
even when the image isn't scaled.

This makes IGT tests for CSC colorop pass.

Assisted-by: Claude: claude-sonnet-4.5
Reviewed-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Harry Wentland 2026-01-16 09:39:05 -05:00 committed by Alex Deucher
parent 23dee18f65
commit eb51c5a103
2 changed files with 12 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/gpu/drm/amd/display/dc/dpp/dcn10/dcn10_dpp.c
View File

@ -172,10 +172,14 @@ bool dpp1_get_optimal_number_of_taps(
scl_data->taps.h_taps_c = in_taps->h_taps_c;
if (!dpp->ctx->dc->debug.always_scale) {
if (IDENTITY_RATIO(scl_data->ratios.horz))
if (IDENTITY_RATIO(scl_data->ratios.horz)) {
scl_data->taps.h_taps = 1;
if (IDENTITY_RATIO(scl_data->ratios.vert))
scl_data->taps.h_taps_c = 1;
}
if (IDENTITY_RATIO(scl_data->ratios.vert)) {
scl_data->taps.v_taps = 1;
scl_data->taps.v_taps_c = 1;
}
if (IDENTITY_RATIO(scl_data->ratios.horz_c))
scl_data->taps.h_taps_c = 1;
if (IDENTITY_RATIO(scl_data->ratios.vert_c))

8
drivers/gpu/drm/amd/display/dc/dpp/dcn30/dcn30_dpp.c
View File

@ -524,10 +524,14 @@ bool dpp3_get_optimal_number_of_taps(
scl_data->taps.v_taps_c = max_taps_c;
if (!dpp->ctx->dc->debug.always_scale) {
if (IDENTITY_RATIO(scl_data->ratios.horz))
if (IDENTITY_RATIO(scl_data->ratios.horz)) {
scl_data->taps.h_taps = 1;
if (IDENTITY_RATIO(scl_data->ratios.vert))
scl_data->taps.h_taps_c = 1;
}
if (IDENTITY_RATIO(scl_data->ratios.vert)) {
scl_data->taps.v_taps = 1;
scl_data->taps.v_taps_c = 1;
}
if (IDENTITY_RATIO(scl_data->ratios.horz_c))
scl_data->taps.h_taps_c = 1;
if (IDENTITY_RATIO(scl_data->ratios.vert_c))