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authorGabe Teeger <Gabe.Teeger@amd.com>2024-12-13 15:15:00 -0500
committerAlex Deucher <alexander.deucher@amd.com>2025-01-10 11:59:18 -0500
commitabc0ad6d08440761b199988c329ad7ac83f41c9b (patch)
tree5c749e8126e77421dc5b816b6d960ed45a4914c0
parentdrm/amdgpu/smu13: update powersave optimizations (diff)
downloadwireguard-linux-abc0ad6d08440761b199988c329ad7ac83f41c9b.tar.xz
wireguard-linux-abc0ad6d08440761b199988c329ad7ac83f41c9b.zip
drm/amd/display: Limit Scaling Ratio on DCN3.01
[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>
-rw-r--r--drivers/gpu/drm/amd/display/dc/resource/dcn301/dcn301_resource.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn301/dcn301_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn301/dcn301_resource.c
index a9816affd312..0cc8a27be593 100644
--- a/drivers/gpu/drm/amd/display/dc/resource/dcn301/dcn301_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/resource/dcn301/dcn301_resource.c
@@ -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,