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Pass IRQF_ONESHOT flag to request_threaded_irq(), so that interrupts will be masked by the kernel until the end of the threaded IRQ handler. Since the calls to pvr_fw_irq_enable() and pvr_fw_irq_disable() are now redundant, remove them. Interrupts to the host from the soon-to-be-added RISC-V firmware processors cannot be masked in hardware. This change allows us to continue using the threaded handler in GPUs with a RISC-V firmware. For simplicity, the same approach is taken for all firmware processors. Signed-off-by: Alessio Belle <alessio.belle@imgtec.com> Reviewed-by: Frank Binns <frank.binns@imgtec.com> Link: https://lore.kernel.org/r/20250410-sets-bxs-4-64-patch-v1-v6-6-eda620c5865f@imgtec.com Signed-off-by: Matt Coster <matt.coster@imgtec.com>
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 reStructuredText 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.