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7f3f317a66
Having hid the partially exposed new ABI from the PR, put it back again for completion of context recovery. A significant part of context recovery is the ability to reuse as much of the old context as is feasible (to avoid expensive reconstruction). The biggest chunk kept hidden at the moment is fine-control over the ctx->ppgtt (the GPU page tables and associated translation tables and kernel maps), so make control over the ctx->ppgtt explicit. This allows userspace to create and share virtual memory address spaces (within the limits of a single fd) between contexts they own, along with the ability to query the contexts for the vm state. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190521211134.16117-1-chris@chris-wilson.co.uk
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.