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488c888ae1
Inspired by a patch by Chris Wilson for vgem. Plus this gives us vmap at the gem bo level, which we need for generic fbdev emulation. Luckily shmem also tracks ->vaddr, so we just need to adjust the code all over a bit to make this fit. Also wire up handle_to_fd, dunno why that was missing. v2: - Drop now unused container_of #define (Melissa) - Make sure we keep creating cached objects, this is for testing (Thomas) Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com> Cc: Melissa Wen <melissa.srw@gmail.com> Cc: Haneen Mohammed <hamohammed.sa@gmail.com> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Melissa Wen <melissa.srw@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20201013111027.375999-1-daniel.vetter@ffwll.ch
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.