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3430f924a6
The Aardvark has two interrupts sets:
- first set is bit[23:16] of PCIe ISR 0 register(RD0074840h)
- second set is bit[11:8] of PCIe ISR 1 register(RD0074848h)
Only one set should be used, while another set should be masked.
The second set, ISR1, is more advanced, the Legacy INT_X status bit is
asserted once Assert_INTX message is received, and de-asserted after
Deassert_INTX message is received which matches what the driver is
currently doing in the ->irq_mask() and ->irq_unmask() functions.
The ISR0 requires additional work to deassert the interrupt, which the
driver does not currently implement, therefore it needs fixing.
Update the driver to use ISR1 register set, fixing current
implementation.
Fixes:
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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.
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.