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bf29bfaa54
The kernel parameter 'cma_pernuma=' only supports reserving the same size of CMA area for each node. We need to reserve different sizes of CMA area for specified nodes if these devices belong to different nodes. Adding another kernel parameter 'numa_cma=' to reserve CMA area for the specified node. If we want to use one of these parameters, we need to enable DMA_NUMA_CMA. At the same time, print the node id in cma_declare_contiguous_nid() if CONFIG_NUMA is enabled. Signed-off-by: Yajun Deng <yajun.deng@linux.dev> Signed-off-by: Christoph Hellwig <hch@lst.de> |
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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.