- Update to version 7.8.0:
  This release supports xserver versions 1.10-1.19.
  Highlights:
  + Significant 2D compositing performance increase, in particular with
    glamor enabled.
  + Option "TearFree" can now prevent tearing in all possible display
    configurations (with current versions of Xorg). Specifically, it's
    now also effective with arbitrary RandR transforms and with RandR 1.4
    slave output.
  + DRI3 is now enabled by default if the Xorg version is >= 1.18.3 and
    glamor is enabled.
  + DRI3/Present asynchronous page flips are now supported (requires
    corresponding kernel driver support, available in current versions of
    the Linux kernel). This can increase performance of fullscreen
    applications with sync-to-vblank disabled.
  + The HW cursor can now be used with RandR 1.4 slave output or with
    TearFree & rotation.
  + Performance improvements with RandR 1.4 slave output.
  + The list of supported GPUs in the Xorg log file has been slightly
    tidied up.
  + RandR 1.4 provider capabilities are now advertised more accurately.
- Remove upstream patches:
  + U_01-dri3-Return-NULL-from-radeon_dri3_pixmap_from_fd-if-calloc-fails.patch
  + U_02-Add-support-for-async-flips-to-radeon_do_pageflip.patch
  + U_03-present-Support-async-flips.patch
  + U_04-Enable-DRI3-by-default-when-building-for-Xorg-1.18.3.patch
  + U_05-EXA-6xx-7xx-fast-solid-pixmap-support.patch
  + U_06-EXA-6xx-7xx-accelerate-PictOpOver-with-component-alpha.patch
  + U_07-Adapt-to-XF86_CRTC_VERSION-7.patch
  + U_08-Add-explicit-RADEON_DRM_QUEUE_ERROR-define.patch
  + U_09-Don-t-enable-DRI3-by-default-with-EXA.patch
  + U_10-Use-EventCallback-to-avoid-flushing-every-time-in-the-FlushCallback.patch
  + U_11-Keep-track-of-damage-event-related-flushes-per-client-v2.patch
  + U_12-Use-drmmode_crtc_scanout_-helpers-for-RandR-1.4-scanout-pixmaps.patch
  + U_13-Handle-RandR-1.4-slave-dirty-updates-via-radeon_drm_queue.patch
  + U_14-Track-damage-accurately-for-RandR-1.4-slave-scanout.patch
  + U_15-Fix-build-against-xserver-1.13.patch
  + U_16-Only-copy-from-screen-pixmap-to-shared-pixmap-on-demand-for-slave-scanout.patch
  + U_17-Factor-out-transform_region-helper.patch
  + U_18-Move-up-radeon_scanout_extents_intersect.patch
  + U_19-Synchronize-scanout-pixmaps-for-TearFree.patch
  + U_20-Make-TearFree-effective-with-PRIME-slave-scanout.patch
  + U_21-Refactor-radeon_mode_hotplug.patch
  + U_22-Use-pRADEONEnt-to-find-both-screens-of-a-GPU-in-radeon_mode_hotplug.patch

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