github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-09-22 04:34:03 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

drm/amd/display: dispatch compressed FRL cap check inside dml1_frl_cap_chk_inter

Browse Source 
[why]
DSC over HDMI FRL (e.g. 4k144) was pruned by DML mode support
because the compressed FRL cap check was never reached.

dml32_TruncToValidBPP() validates the FRL output by calling
dml1_frl_cap_chk_inter() directly. The compressed-vs-uncompressed
dispatch (if params->compressed -> dml1_frl_cap_chk_compressed()) had
been moved up into the top-level dml1_frl_cap_chk() wrapper, leaving
dml1_frl_cap_chk_inter() as uncompressed-only. As a result a DSC stream
routed through TruncToValidBPP was validated against the full
uncompressed bandwidth, failed the cap check, and the mode was pruned
(vlevel == num_states).

[how]
Move the compressed dispatch back into dml1_frl_cap_chk_inter() so every
caller of _inter() (including TruncToValidBPP) honours params->compressed.
This matches the internal DAL tree.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Fangzhi Zuo 2026-07-15 15:09:34 -04:00 committed by Alex Deucher
parent 9fcd9c7545
commit 9afc6186fa
1 changed files with 5 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/gpu/drm/amd/display/dc/dml/dml1_frl_cap_chk.c
View File

@ -630,17 +630,17 @@ enum frl_cap_chk_result dml1_frl_cap_chk(struct frl_cap_chk_params *params)
{
struct frl_cap_chk_intermediates inter;
#if defined (CONFIG_DRM_AMD_DC_FP)
if (params->compressed)
return dml1_frl_cap_chk_compressed(params, &inter);
#endif
return dml1_frl_cap_chk_inter(params, &inter);
}
enum frl_cap_chk_result dml1_frl_cap_chk_inter(struct frl_cap_chk_params *params,
struct frl_cap_chk_intermediates *inter)
{
#if defined (CONFIG_DRM_AMD_DC_FP)
if (params->compressed)
return dml1_frl_cap_chk_compressed(params, inter);
#endif
return dml1_frl_cap_chk_uncompressed(params, inter);
}