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This reverts commitf25c7a006c("drm/fbdev: Fallback to non tiled mode if all tiles not present"). The commit causes flip done timeouts in CI. Below are the sample errors thrown in logs: [IGT] core_getversion: executing [IGT] core_getversion: exiting, ret=0 Setting dangerous option reset - tainting kernel drm:drm_atomic_helper_wait_for_dependencies] ERROR [CRTC:152:pipe B] flip_done timed out drm:drm_atomic_helper_wait_for_dependencies] ERROR [CONNECTOR:299:DP-2] flip_done timed out drm:drm_atomic_helper_wait_for_dependencies] ERROR [PLANE:92:plane 1B] flip_done timed out [drm:drm_atomic_helper_wait_for_flip_done] ERROR [CRTC:152:pipe B] flip_done timed out [drm:drm_atomic_helper_wait_for_dependencies] ERROR [CRTC:152:pipe B] flip_done timed out [drm:drm_atomic_helper_wait_for_dependencies] ERROR [CONNECTOR:299:DP-2] flip_done timed out [drm:drm_atomic_helper_wait_for_dependencies] ERROR [PLANE:92:plane 1B] flip_done timed out [drm:drm_atomic_helper_wait_for_flip_done] ERROR [CRTC:152:pipe B] flip_done timed out Console: switching to colour frame buffer device 480x135 [drm:drm_atomic_helper_wait_for_dependencies] ERROR [CRTC:152:pipe B] flip_done timed out [drm:drm_atomic_helper_wait_for_dependencies] ERROR [CONNECTOR:299:DP-2] flip_done timed out Reverting the change for now to unblock CI execution. Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Dave Airlie <airlied@redhat.com> Cc: Jani Nikula <jani.nikula@intel.com> Cc: Manasi Navare <manasi.d.navare@intel.com> Signed-off-by: Uma Shankar <uma.shankar@intel.com> Fixes:f25c7a006c("drm/fbdev: Fallback to non tiled mode if all tiles not present") Closes: https://gitlab.freedesktop.org/drm/intel/issues/6 Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191123091840.32382-1-uma.shankar@intel.com
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.