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| Filename | Latest commit message | Latest commit date |
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1251f23ae8
This patch adds support for receiving events from Goya's control CPU and for receiving MSI-X interrupts from Goya's DMA engines and CPU. Goya's PCI controller supports up to 8 MSI-X interrupts, which only 6 of them are currently used. The first 5 interrupts are dedicated for Goya's DMA engine queues. The 6th interrupt is dedicated for Goya's control CPU. The DMA queue will signal its MSI-X entry upon each completion of a command buffer that was placed on its primary queue. The driver will then mark that CB as completed and free the related resources. It will also update the command submission object which that CB belongs to. There is a dedicated event queue (EQ) between the driver and Goya's control CPU. The EQ is located on the Host memory. The control CPU writes a new entry to the EQ for various reasons, such as ECC error, MMU page fault, Hot temperature. After writing the new entry to the EQ, the control CPU will trigger its dedicated MSI-X entry to signal the driver that there is a new entry in the EQ. The driver will then read the entry and act accordingly. Reviewed-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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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.