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2379f34852
The AMD IOMMU has three log buffers (i.e. Event, PPR, and GA). The IOMMU driver processes these log entries when it receive an IOMMU interrupt. Then, it needs to clear the corresponding interrupt status bits. Also, when an overflow occurs, it needs to handle the log overflow by clearing the specific overflow status bit and restart the log. Since, logic for handling these logs is the same, refactor the code into a helper function called amd_iommu_handle_irq(), which handles the steps described. Then, reuse it for all types of log. Reviewed-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Signed-off-by: Vasant Hegde<vasant.hegde@amd.com> Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com> Link: https://lore.kernel.org/r/20230628053222.5962-2-vasant.hegde@amd.com Signed-off-by: Joerg Roedel <jroedel@suse.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.