[PATCH AUTOSEL 5.12 013/160] drm/amd/display: fix use_max_lb flag for 420 pixel formats
From: Sasha Levin <sashal@kernel.org>
Date: 2021-07-06 11:34:23
Also in:
amd-gfx, dri-devel, lkml
Subsystem:
amd display core, drm drivers, radeon and amdgpu drm drivers, the rest · Maintainers:
Harry Wentland, Leo Li, David Airlie, Simona Vetter, Alex Deucher, Christian König, Linus Torvalds
From: Dmytro Laktyushkin <redacted> [ Upstream commit 8809a7a4afe90ad9ffb42f72154d27e7c47551ae ] Right now the flag simply selects memory config 0 when flag is true however 420 modes benefit more from memory config 3. Signed-off-by: Dmytro Laktyushkin <redacted> Reviewed-by: Aric Cyr <redacted> Acked-by: Stylon Wang <redacted> Tested-by: Daniel Wheeler <redacted> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_dscl.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_dscl.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_dscl.c
index efa86d5c6847..98ab4b776924 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_dscl.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_dscl.c@@ -496,10 +496,13 @@ static enum lb_memory_config dpp1_dscl_find_lb_memory_config(struct dcn10_dpp *d int vtaps_c = scl_data->taps.v_taps_c; int ceil_vratio = dc_fixpt_ceil(scl_data->ratios.vert); int ceil_vratio_c = dc_fixpt_ceil(scl_data->ratios.vert_c); - enum lb_memory_config mem_cfg = LB_MEMORY_CONFIG_0; - if (dpp->base.ctx->dc->debug.use_max_lb) - return mem_cfg; + if (dpp->base.ctx->dc->debug.use_max_lb) { + if (scl_data->format == PIXEL_FORMAT_420BPP8 + || scl_data->format == PIXEL_FORMAT_420BPP10) + return LB_MEMORY_CONFIG_3; + return LB_MEMORY_CONFIG_0; + } dpp->base.caps->dscl_calc_lb_num_partitions( scl_data, LB_MEMORY_CONFIG_1, &num_part_y, &num_part_c);
--
2.30.2