mirror of
https://github.com/hardkernel/linux.git
synced 2026-06-05 02:21:52 +09:00
599aefc81e
For a system with PAGE_SIZE of 16K or 64K, the size every time we want to alloc may be small like 4K, but for function dmam_alloc_coherent(), the least size it allocates is PAGE_SIZE, so it will waste much memory for the situation. To solve the issue, limit the minimum allocation size of slot buf to PAGE_SIZE. Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.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.