diff options
| author | JinZe.Xu <JinZe.Xu@amd.com> | 2023-04-10 23:23:37 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-04-24 18:36:45 -0400 |
| commit | 8f3589bb6fcea397775398cba4fbcc46829a60ed (patch) | |
| tree | 93010984864e0025518e17a704dd3198c0edcde5 /drivers/gpu/drm/amd/display/dmub/src/dmub_dcn32.c | |
| parent | 278d3de6754e778cb676b7e1b10782eff1971010 (diff) | |
| download | lwn-8f3589bb6fcea397775398cba4fbcc46829a60ed.tar.gz lwn-8f3589bb6fcea397775398cba4fbcc46829a60ed.zip | |
drm/amd/display: Restore rptr/wptr for DMCUB as workaround
[Why]
States may be desync after resume.
[How]
Sync sw state with hw state.
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: JinZe.Xu <JinZe.Xu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dmub/src/dmub_dcn32.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dmub/src/dmub_dcn32.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn32.c b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn32.c index a7d5607459ed..21dd6cbdb106 100644 --- a/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn32.c +++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn32.c @@ -266,6 +266,11 @@ void dmub_dcn32_setup_mailbox(struct dmub_srv *dmub, REG_WRITE(DMCUB_INBOX1_SIZE, inbox1->top - inbox1->base); } +uint32_t dmub_dcn32_get_inbox1_wptr(struct dmub_srv *dmub) +{ + return REG_READ(DMCUB_INBOX1_WPTR); +} + uint32_t dmub_dcn32_get_inbox1_rptr(struct dmub_srv *dmub) { return REG_READ(DMCUB_INBOX1_RPTR); |