mirrors/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-05-05 17:03:47 -04:00
Code Issues Packages Projects Releases Wiki Activity

drm/amd/display: Set WM set A to 0 if full pstate not supported

Browse Source 
[Why]
If full pstate is not supported, we should set WM set A
to 0 to prevent any hangs

[How]
If pstate is not supported, set watermark set A to 0

Signed-off-by: Alvin Lee <alvin.lee2@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alvin Lee
2020-10-02 17:53:35 -04:00
committed by Alex Deucher
parent 39a71459a0
commit 1db522cd03
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c
View File

@@ -2313,7 +2313,7 @@ void dcn30_calculate_wm_and_dlg(
* calculate DLG based on dummy p-state latency, and max out the set A p-state watermark
*/
context->bw_ctx.bw.dcn.watermarks.a = context->bw_ctx.bw.dcn.watermarks.c;
context->bw_ctx.bw.dcn.watermarks.a.cstate_pstate.pstate_change_ns = 0x13FFFF;
context->bw_ctx.bw.dcn.watermarks.a.cstate_pstate.pstate_change_ns = 0;
} else {
/* Set A:
* DCFCLK: Min Required