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af152c2120
For SG BO to DMA-map userptrs on other GPUs, the SG BO need inherit MTYPEs in PTEs from original BO. If we set the flags, the device can be coherent with the CPUs and other GPUs. v2: 1. Drop unnecessary flags check 2. Remove local variable align Signed-off-by: Shane Xiao <shane.xiao@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.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.