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_srv.c | |
| parent | 278d3de6754e778cb676b7e1b10782eff1971010 (diff) | |
| download | linux-8f3589bb6fcea397775398cba4fbcc46829a60ed.tar.gz linux-8f3589bb6fcea397775398cba4fbcc46829a60ed.tar.bz2 linux-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_srv.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c b/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c index 67c53f7e589c..ea3bed70a229 100644 --- a/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c +++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c @@ -166,6 +166,7 @@ static bool dmub_srv_hw_setup(struct dmub_srv *dmub, enum dmub_asic asic) funcs->backdoor_load = dmub_dcn20_backdoor_load; funcs->setup_windows = dmub_dcn20_setup_windows; funcs->setup_mailbox = dmub_dcn20_setup_mailbox; + funcs->get_inbox1_wptr = dmub_dcn20_get_inbox1_wptr; funcs->get_inbox1_rptr = dmub_dcn20_get_inbox1_rptr; funcs->set_inbox1_wptr = dmub_dcn20_set_inbox1_wptr; funcs->is_supported = dmub_dcn20_is_supported; @@ -235,6 +236,7 @@ static bool dmub_srv_hw_setup(struct dmub_srv *dmub, enum dmub_asic asic) funcs->backdoor_load = dmub_dcn31_backdoor_load; funcs->setup_windows = dmub_dcn31_setup_windows; funcs->setup_mailbox = dmub_dcn31_setup_mailbox; + funcs->get_inbox1_wptr = dmub_dcn31_get_inbox1_wptr; funcs->get_inbox1_rptr = dmub_dcn31_get_inbox1_rptr; funcs->set_inbox1_wptr = dmub_dcn31_set_inbox1_wptr; funcs->setup_out_mailbox = dmub_dcn31_setup_out_mailbox; @@ -273,6 +275,7 @@ static bool dmub_srv_hw_setup(struct dmub_srv *dmub, enum dmub_asic asic) funcs->backdoor_load_zfb_mode = dmub_dcn32_backdoor_load_zfb_mode; funcs->setup_windows = dmub_dcn32_setup_windows; funcs->setup_mailbox = dmub_dcn32_setup_mailbox; + funcs->get_inbox1_wptr = dmub_dcn32_get_inbox1_wptr; funcs->get_inbox1_rptr = dmub_dcn32_get_inbox1_rptr; funcs->set_inbox1_wptr = dmub_dcn32_set_inbox1_wptr; funcs->setup_out_mailbox = dmub_dcn32_setup_out_mailbox; @@ -642,6 +645,20 @@ enum dmub_status dmub_srv_hw_init(struct dmub_srv *dmub, return DMUB_STATUS_OK; } +enum dmub_status dmub_srv_sync_inbox1(struct dmub_srv *dmub) +{ + if (!dmub->sw_init) + return DMUB_STATUS_INVALID; + + if (dmub->hw_funcs.get_inbox1_rptr && dmub->hw_funcs.get_inbox1_wptr) { + dmub->inbox1_rb.rptr = dmub->hw_funcs.get_inbox1_rptr(dmub); + dmub->inbox1_rb.wrpt = dmub->hw_funcs.get_inbox1_wptr(dmub); + dmub->inbox1_last_wptr = dmub->inbox1_rb.wrpt; + } + + return DMUB_STATUS_OK; +} + enum dmub_status dmub_srv_hw_reset(struct dmub_srv *dmub) { if (!dmub->sw_init) |