diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2021-01-22 15:26:33 -0800 |
|---|---|---|
| committer | Manasi Navare <manasi.d.navare@intel.com> | 2021-01-25 15:22:13 -0800 |
| commit | 615e29eeb4211b93d5af64ab72c874cca5430261 (patch) | |
| tree | b684f147585ef735cb99c92a40cdfb73c0ac8aa3 /drivers | |
| parent | fa429c0410bcebe101c17053930732d02cf2f8b3 (diff) | |
drm/i915: Extract intel_mode_vblank_start()
We want to calculate the vblank_start for vblank evasion
differently for vrr. To make that nicer lets first extract
the current non-vrr case to a helper.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210122232647.22688-4-manasi.d.navare@intel.com
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_sprite.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_sprite.c b/drivers/gpu/drm/i915/display/intel_sprite.c index 138b971b4b21..ae8124fdf7de 100644 --- a/drivers/gpu/drm/i915/display/intel_sprite.c +++ b/drivers/gpu/drm/i915/display/intel_sprite.c @@ -62,6 +62,16 @@ int intel_usecs_to_scanlines(const struct drm_display_mode *adjusted_mode, 1000 * adjusted_mode->crtc_htotal); } +static int intel_mode_vblank_start(const struct drm_display_mode *mode) +{ + int vblank_start = mode->crtc_vblank_start; + + if (mode->flags & DRM_MODE_FLAG_INTERLACE) + vblank_start = DIV_ROUND_UP(vblank_start, 2); + + return vblank_start; +} + /** * intel_pipe_update_start() - start update of a set of display registers * @new_crtc_state: the new crtc state @@ -90,9 +100,7 @@ void intel_pipe_update_start(const struct intel_crtc_state *new_crtc_state) if (new_crtc_state->uapi.async_flip) return; - vblank_start = adjusted_mode->crtc_vblank_start; - if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) - vblank_start = DIV_ROUND_UP(vblank_start, 2); + vblank_start = intel_mode_vblank_start(adjusted_mode); /* FIXME needs to be calibrated sensibly */ min = vblank_start - intel_usecs_to_scanlines(adjusted_mode, |