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2a51558c8c
This patch removes the non-standard DMA mask setting for Goya. Now that the device CPU goes through the MMU, we are not limited to allocating the CPU accessible memory area in the address space of under 39 bits. Therefore, we don't need to set the DMA masking twice during initialization, a practice that is not working on POWER architecture. The patch sets the DMA mask to 48 bits once during the initialization. The address of the CPU accessible memory area is configured to the MMU and the matching VA is given to the device CPU. Signed-off-by: Oded Gabbay <oded.gabbay@gmail.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.