diff options
| author |   Charlene Liu <charlene.liu@amd.com> | 2018-04-18 14:31:41 -0400 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2018-05-18 16:08:23 -0500 |
| commit | 3ba43a59927fbde07414393dfc2b6753cb233e00 (patch) | |
| tree | 2723a35205e084a28704b87cfd610f1d0183f342 /drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubbub.c | |
| parent | drm/amd/display: truncate scaling ratios and inits to 19 bit precision (diff) | |
| download | linux-dev-3ba43a59927fbde07414393dfc2b6753cb233e00.tar.xz linux-dev-3ba43a59927fbde07414393dfc2b6753cb233e00.zip | |
drm/amd/display: underflow/blankscreen recovery
[Description]
for any reason, if driver detects HUBP underflow,
if a debug option enabled to enable recovery.
it will kick in a sequence of recovery.
Signed-off-by: Charlene Liu <charlene.liu@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubbub.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubbub.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubbub.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubbub.c index b9fb14a3224b..943143efbb82 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubbub.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubbub.c @@ -476,6 +476,14 @@ void hubbub1_toggle_watermark_change_req(struct hubbub *hubbub) DCHUBBUB_ARB_WATERMARK_CHANGE_REQUEST, watermark_change_req); } +void hubbub1_soft_reset(struct hubbub *hubbub, bool reset) +{ + uint32_t reset_en = reset ? 1 : 0; + + REG_UPDATE(DCHUBBUB_SOFT_RESET, + DCHUBBUB_GLOBAL_SOFT_RESET, reset_en); +} + static bool hubbub1_dcc_support_swizzle( enum swizzle_mode_values swizzle, unsigned int bytes_per_element, |