diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_vrr.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_vrr.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_vrr.c b/drivers/gpu/drm/i915/display/intel_vrr.c index c335b1dbafcf..139e8936edc5 100644 --- a/drivers/gpu/drm/i915/display/intel_vrr.c +++ b/drivers/gpu/drm/i915/display/intel_vrr.c @@ -60,7 +60,7 @@ intel_vrr_check_modeset(struct intel_atomic_state *state) * Between those two points the vblank exit starts (and hence registers get * latched) ASAP after a push is sent. * - * framestart_delay is programmable 0-3. + * framestart_delay is programmable 1-4. */ static int intel_vrr_vblank_exit_length(const struct intel_crtc_state *crtc_state) { @@ -138,13 +138,13 @@ intel_vrr_compute_config(struct intel_crtc_state *crtc_state, i915->window2_delay; else /* - * FIXME: s/4/framestart_delay+1/ to get consistent + * FIXME: s/4/framestart_delay/ to get consistent * earliest/latest points for register latching regardless * of the framestart_delay used? * * FIXME: this really needs the extra scanline to provide consistent * behaviour for all framestart_delay values. Otherwise with - * framestart_delay==3 we will end up extending the min vblank by + * framestart_delay==4 we will end up extending the min vblank by * one extra line. */ crtc_state->vrr.pipeline_full = @@ -193,6 +193,18 @@ void intel_vrr_send_push(const struct intel_crtc_state *crtc_state) TRANS_PUSH_EN | TRANS_PUSH_SEND); } +bool intel_vrr_is_push_sent(const struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; + + if (!crtc_state->vrr.enable) + return false; + + return intel_de_read(dev_priv, TRANS_PUSH(cpu_transcoder)) & TRANS_PUSH_SEND; +} + void intel_vrr_disable(const struct intel_crtc_state *old_crtc_state) { struct intel_crtc *crtc = to_intel_crtc(old_crtc_state->uapi.crtc); |