diff options
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dsb.c | 9 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dsb.h | 2 |
2 files changed, 9 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dsb.c b/drivers/gpu/drm/i915/display/intel_dsb.c index 96baef5d5b1a..50d8c4900644 100644 --- a/drivers/gpu/drm/i915/display/intel_dsb.c +++ b/drivers/gpu/drm/i915/display/intel_dsb.c @@ -241,14 +241,19 @@ static bool is_dsb_busy(struct intel_display *display, enum pipe pipe, return intel_de_read_fw(display, DSB_CTRL(pipe, dsb_id)) & DSB_STATUS_BUSY; } -static unsigned int intel_dsb_head(struct intel_dsb *dsb) +unsigned int intel_dsb_size(struct intel_dsb *dsb) +{ + return dsb->free_pos * 4; +} + +unsigned int intel_dsb_head(struct intel_dsb *dsb) { return intel_dsb_buffer_ggtt_offset(&dsb->dsb_buf); } static unsigned int intel_dsb_tail(struct intel_dsb *dsb) { - return intel_dsb_buffer_ggtt_offset(&dsb->dsb_buf) + dsb->free_pos * 4; + return intel_dsb_buffer_ggtt_offset(&dsb->dsb_buf) + intel_dsb_size(dsb); } static void intel_dsb_ins_align(struct intel_dsb *dsb) diff --git a/drivers/gpu/drm/i915/display/intel_dsb.h b/drivers/gpu/drm/i915/display/intel_dsb.h index 6900acd603b8..ab6489749866 100644 --- a/drivers/gpu/drm/i915/display/intel_dsb.h +++ b/drivers/gpu/drm/i915/display/intel_dsb.h @@ -26,6 +26,8 @@ enum intel_dsb_id { I915_MAX_DSBS, }; +unsigned int intel_dsb_size(struct intel_dsb *dsb); +unsigned int intel_dsb_head(struct intel_dsb *dsb); struct intel_dsb *intel_dsb_prepare(struct intel_atomic_state *state, struct intel_crtc *crtc, enum intel_dsb_id dsb_id, |