b0b0f2d225
We currently have to special case vma->obj being NULL because of gen6 ppgtt and mock_engine. Fix gen6 ppgtt, so we may soon be able to remove a few checks. As the object only exists as a fake object pointing to ggtt, we have no backing storage, so no real object is created. It just has to look real enough. Also kill pin_mutex, it's not compatible with ww locking, and we can use the vm lock instead. v2: - Drop IS_SHRINKABLE and shorten overly long line v3: - Checkpatch fix for alignment Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Signed-off-by: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211117142024.1043017-2-matthew.auld@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.