diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2021-01-23 02:26:47 +0300 |
|---|---|---|
| committer | Manasi Navare <manasi.d.navare@intel.com> | 2021-01-26 02:23:44 +0300 |
| commit | d6a059e2d39fe1ed0acf6232daa02f19ef97091a (patch) | |
| tree | bc48f8ccd86a43dc651358f1f650bcfb154e300f | |
| parent | 7a2ec4a0a588bf6b0975f6c296604c2bc80b3aee (diff) | |
| download | linux-d6a059e2d39fe1ed0acf6232daa02f19ef97091a.tar.xz | |
drm/i915: Fix vblank evasion with vrr
With vrr enabled the hardware no longer latches the registers
automagically at vblank start. The point at which it will do the
latching even when no push has been sent is the vmax decision
boundary. That is the thing we need to evade to avoid our
register latching to get split between two frames.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210122232647.22688-18-manasi.d.navare@intel.com
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_sprite.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_sprite.c b/drivers/gpu/drm/i915/display/intel_sprite.c index 7b7b57622b45..9639d8fe32d7 100644 --- a/drivers/gpu/drm/i915/display/intel_sprite.c +++ b/drivers/gpu/drm/i915/display/intel_sprite.c @@ -101,7 +101,10 @@ void intel_pipe_update_start(const struct intel_crtc_state *new_crtc_state) if (new_crtc_state->uapi.async_flip) return; - vblank_start = intel_mode_vblank_start(adjusted_mode); + if (new_crtc_state->vrr.enable) + vblank_start = intel_vrr_vmax_vblank_start(new_crtc_state); + else + vblank_start = intel_mode_vblank_start(adjusted_mode); /* FIXME needs to be calibrated sensibly */ min = vblank_start - intel_usecs_to_scanlines(adjusted_mode, |