diff options
| author | Duncan Ma <duncanma@amd.com> | 2022-02-08 15:05:09 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-02-23 14:26:36 -0500 |
| commit | b51178d6edddbfc8cb4da5b5e9c924f2d24bbcac (patch) | |
| tree | 48fde58d761d73b2479db7ed116d845ae38d3f33 /drivers/gpu/drm/amd/display | |
| parent | 5b45b1c8b89f84d01fea8939b672631b51cdf95b (diff) | |
drm/amd/display: Set compbuf size to min at prep prevent overbook crb
[Why]
Detbuffer size is dynamically set for dcn31x. At certain moment,
compbuf+(def size * num pipes) > config return buffer size causing
flickering. This is easily reproducible when MPO is
enabled with two displays.
[How]
At prepare BW, use the min comp buffer size. When it is to
optimize BW, set compbuf size back to maximum possible size.
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Duncan Ma <duncanma@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn315/dcn315_resource.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn315/dcn315_resource.c b/drivers/gpu/drm/amd/display/dc/dcn315/dcn315_resource.c index f22158bb4b13..46b170e60a54 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn315/dcn315_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn315/dcn315_resource.c @@ -147,6 +147,7 @@ struct _vcs_dpi_ip_params_st dcn3_15_ip = { .hostvm_max_page_table_levels = 2, .rob_buffer_size_kbytes = 64, .det_buffer_size_kbytes = DCN3_15_DEFAULT_DET_SIZE, + .min_comp_buffer_size_kbytes = DCN3_15_MIN_COMPBUF_SIZE_KB, .config_return_buffer_size_in_kbytes = 1024, .compressed_buffer_segment_size_in_kbytes = 64, .meta_fifo_size_in_kentries = 32, |