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8cad471305
HMM callers use PFN list to populate range while calling to hmm_range_fault(), the conversion from PFN to DMA address is done by the callers with help of another DMA list. However, it is wasteful on any modern platform and by doing the right logic, that DMA list can be avoided. Provide generic logic to manage these lists and gave an interface to map/unmap PFNs to DMA addresses, without requiring from the callers to be an experts in DMA core API. Tested-by: Jens Axboe <axboe@kernel.dk> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Leon Romanovsky <leonro@nvidia.com> |
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| kernel | ||
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| README | ||
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 reStructuredText 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.