d3a569fccf
Support the WHERE_AM_I opcode for the A618, A630 and A640 GPUs if the microcode supports it. The WHERE_AM_I opcode allows the RPTR shadow to be updated in priviliged memory which protects the shadow from being read or written from user submissions. A650 already supports extended APRIV have built in hardware support for to access privilged memory from the CP and can go back to using the hardware RPTR shadow feature. Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org> Signed-off-by: Rob Clark <robdclark@chromium.org>
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.