Jianqun Xu 646b9fca8f staging: android: ion: add FORCE SYNC for ion heap
Do dma sync after sg table created during ion alloc.

Since dma sync api requires a device, this patch also create a platform
device for ion.

The sg_phys will be filled after buffer mapped, but someone may need to
do sync without map/unmap operation, this patch also fills the sg_phys
after the sg_table created.

Change-Id: I2110f7727dbee55f7498c8d3376efcb7cd869b3a
Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com>
2021-04-30 15:16:57 +08:00
2019-02-10 00:33:21 +08:00
2021-04-21 20:13:05 +08:00
2019-02-10 00:33:21 +08:00
2019-02-10 00:33:21 +08:00
2019-08-29 19:45:37 +08:00
2019-08-29 19:45:37 +08:00

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.
See Documentation/00-INDEX for a list of what is contained in each file.

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.
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