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drm/amd/display: Limit Scaling Ratio on DCN3.01

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[why]
Underflow and flickering was occuring due to high scaling ratios
when resizing videos.

[how]
Limit the scaling ratios by increasing the max scaling factor

Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Gabe Teeger <Gabe.Teeger@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Gabe Teeger 2024-12-13 15:15:00 -05:00 committed by Alex Deucher
parent d477e39532
commit abc0ad6d08
1 changed files with 4 additions and 4 deletions
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8
drivers/gpu/drm/amd/display/dc/resource/dcn301/dcn301_resource.c
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@ -671,9 +671,9 @@ static const struct dc_plane_cap plane_cap = {
/* 6:1 downscaling ratio: 1000/6 = 166.666 */
.max_downscale_factor = {
.argb8888 = 167,
.nv12 = 167,
.fp16 = 167
.argb8888 = 358,
.nv12 = 358,
.fp16 = 358
},
64,
64
@ -693,7 +693,7 @@ static const struct dc_debug_options debug_defaults_drv = {
.disable_dcc = DCC_ENABLE,
.vsr_support = true,
.performance_trace = false,
.max_downscale_src_width = 7680,/*upto 8K*/
.max_downscale_src_width = 4096,/*upto true 4k*/
.scl_reset_length10 = true,
.sanity_checks = false,
.underflow_assert_delay_us = 0xFFFFFFFF,