db0d3fc566
The PCIe BAR area must be mapped as IO attribute for GPU VRAM area, but, there may be some misaligned access in user-space program. Then, it will trigger 5# exception when misaligned load and 7# excepiton when misaligned store. And user-space program will crash because of the 5# exception and 7# exception can't be fixed. So, we try to process the user-space io area misligned access firstly when the 5# exception and 7# exception are caught Change-Id: Iac78bcdb8505dd113dcc4deed782e78016ddbf9b
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.