diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_display.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index a78b16fe20fd..2bf0c3cd23dd 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -4907,6 +4907,28 @@ static bool needs_scaling(const struct intel_plane_state *state) return (src_w != dst_w || src_h != dst_h); } +static bool intel_plane_do_async_flip(struct intel_plane *plane, + const struct intel_crtc_state *old_crtc_state, + const struct intel_crtc_state *new_crtc_state) +{ + struct drm_i915_private *i915 = to_i915(plane->base.dev); + + if (!plane->async_flip) + return false; + + if (!new_crtc_state->uapi.async_flip) + return false; + + /* + * In platforms after DISPLAY13, we might need to override + * first async flip in order to change watermark levels + * as part of optimization. + * So for those, we are checking if this is a first async flip. + * For platforms earlier than DISPLAY13 we always do async flip. + */ + return DISPLAY_VER(i915) < 13 || old_crtc_state->uapi.async_flip; +} + int intel_plane_atomic_calc_changes(const struct intel_crtc_state *old_crtc_state, struct intel_crtc_state *new_crtc_state, const struct intel_plane_state *old_plane_state, @@ -5026,7 +5048,7 @@ int intel_plane_atomic_calc_changes(const struct intel_crtc_state *old_crtc_stat needs_scaling(new_plane_state)))) new_crtc_state->disable_lp_wm = true; - if (new_crtc_state->uapi.async_flip && plane->async_flip) + if (intel_plane_do_async_flip(plane, old_crtc_state, new_crtc_state)) new_plane_state->do_async_flip = true; return 0; |