diff options
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dsb.c | 13 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dsb.h | 1 |
2 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dsb.c b/drivers/gpu/drm/i915/display/intel_dsb.c index cd32b59adf18..04c2096df2dc 100644 --- a/drivers/gpu/drm/i915/display/intel_dsb.c +++ b/drivers/gpu/drm/i915/display/intel_dsb.c @@ -606,6 +606,19 @@ void intel_dsb_gosub(struct intel_dsb *dsb, intel_dsb_align_tail(dsb); } +void intel_dsb_gosub_finish(struct intel_dsb *dsb) +{ + intel_dsb_align_tail(dsb); + + /* + * "All subroutines called by the GOSUB instruction + * must end with a cacheline of NOPs" + */ + intel_dsb_noop(dsb, 8); + + intel_dsb_buffer_flush_map(&dsb->dsb_buf); +} + void intel_dsb_finish(struct intel_dsb *dsb) { struct intel_crtc *crtc = dsb->crtc; diff --git a/drivers/gpu/drm/i915/display/intel_dsb.h b/drivers/gpu/drm/i915/display/intel_dsb.h index 8b2cf0a7b7e6..6900acd603b8 100644 --- a/drivers/gpu/drm/i915/display/intel_dsb.h +++ b/drivers/gpu/drm/i915/display/intel_dsb.h @@ -31,6 +31,7 @@ struct intel_dsb *intel_dsb_prepare(struct intel_atomic_state *state, enum intel_dsb_id dsb_id, unsigned int max_cmds); void intel_dsb_finish(struct intel_dsb *dsb); +void intel_dsb_gosub_finish(struct intel_dsb *dsb); void intel_dsb_cleanup(struct intel_dsb *dsb); void intel_dsb_reg_write(struct intel_dsb *dsb, i915_reg_t reg, u32 val); |