[Bug 94980] [HSW xf86-video-intel] 2D acceleration slows to a crawl from 4.4.6 -> 4.5
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Sun Apr 17 19:24:18 UTC 2016
https://bugs.freedesktop.org/show_bug.cgi?id=94980
--- Comment #5 from Rafael Ristovski <rafael.ristovski at gmail.com> ---
(In reply to Chris Wilson from comment #4)
> Suggestion by Maarten:
>
> diff --git a/drivers/gpu/drm/i915/intel_display.c
> b/drivers/gpu/drm/i915/intel_display.c
> index 36e7e29ea266..385095f725a8 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -13160,6 +13160,9 @@ static int intel_atomic_prepare_commit(struct
> drm_device *dev,
> }
>
> for_each_crtc_in_state(state, crtc, crtc_state, i) {
> + if (state->legacy_cursor_update)
> + continue;
> +
> ret = intel_crtc_wait_for_pending_flips(crtc);
> if (ret)
> return ret;
Can confirm this fixes the issue.
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