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In MDP3, a pipe is used to represent a data path which
consisting of different components and MUTEX, as shown in
the following diagram:
+----------------------------+
| MUTEX [*1] |
+----------------------------+
S ^ S ^ S ^ S ^ S ^
| | | | | | | | | |
| | | | | | | | | |
+--------------+ | | | | | | | | +-------------+
| +--------------+ | | | | | | +-------------+ |
| | +------+ | | | | +------+ | |
| | | +------+ | | +------+ | | |
| | | | | | | | | |
| | | | | | | | | |
v E v E v E v E v E
+-------+ +-----+ +-------+ +-----+ +-------+
B>--->| RDMA0 |>-->| PQ |>-->| RSZ0 |>-->| PQ |>-->| WROT0 |>-->B
+-------+ +-----+ +-------+ +-----+ +-------+
[*1] MUTEX is SOF/EOF signal controller
[*2] S = Start of frame (SOF)
[*3] E = End of frame (EOF)
[*4] B = frame buffer
More pipes will be introduced in future chips for applications such as
higher frame rate frequency, which should integrate and reorder related
information into specific chip config file.
Signed-off-by: Moudy Ho <moudy.ho@mediatek.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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.