diff options
| author | Ilya Bakoulin <[email protected]> | 2024-09-16 18:38:19 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2024-10-15 15:23:12 +0000 |
| commit | df60dcf5b58a642e531609d0d673bb63a11ed06e (patch) | |
| tree | a2d2e8cdf6cf97a1e05e87b26def080eb33ddf0b /drivers/gpu/drm/amd/display/dc/inc/hw | |
| parent | drm/amd/display: Add check for headless for idle optimization (diff) | |
| download | kernel-df60dcf5b58a642e531609d0d673bb63a11ed06e.tar.gz kernel-df60dcf5b58a642e531609d0d673bb63a11ed06e.zip | |
drm/amd/display: Add 3DLUT FL HW bug workaround
[Why]
There is a known HW bug that causes the internal 3DLUT fetch signal to
be lost at VREADY, regardless of whether the OTG lock is being held or
not. A workaround is necessary to make sure that this internal signal
stays up after OTG unlock.
[How]
Set the 3DLUT_ENABLE bit immediately before and after the unlock. Also
use VUPDATE_KEEPOUT to prevent lock transition in the region between
VSTARTUP and VREADY, which could cause issues with this WA sequence.
Also including misc. 3DLUT DMA-related sequence fixes to address a few
regressions causing corruption.
Reviewed-by: Dillon Varone <[email protected]>
Signed-off-by: Ilya Bakoulin <[email protected]>
Signed-off-by: Roman Li <[email protected]>
Tested-by: Daniel Wheeler <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/inc/hw')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/inc/hw/timing_generator.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/timing_generator.h b/drivers/gpu/drm/amd/display/dc/inc/hw/timing_generator.h index 4e08e80eafe8..b74e18cc1e66 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/hw/timing_generator.h +++ b/drivers/gpu/drm/amd/display/dc/inc/hw/timing_generator.h @@ -345,6 +345,8 @@ struct timing_generator_funcs { bool (*get_optc_double_buffer_pending)(struct timing_generator *tg); bool (*get_otg_double_buffer_pending)(struct timing_generator *tg); bool (*get_pipe_update_pending)(struct timing_generator *tg); + void (*set_vupdate_keepout)(struct timing_generator *tg, bool enable); + bool (*wait_update_lock_status)(struct timing_generator *tg, bool locked); }; #endif |