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14ff9e54dd
Optimize the PLIC driver by maintaining the interrupt enable state in the handler's enable_save array during normal operation rather than only during suspend/resume. This eliminates the need to read enable registers during suspend and makes the enable state immediately available for other purposes. Let __plic_toggle() update both the hardware registers and the cached enable_save state atomically within the existing enable_lock protection. That allows to remove the suspend-time enable register reading since handler::enable_save now always reflects the current state. [ tglx: Massaged change log ] Signed-off-by: Charles Mirabile <cmirabil@redhat.com> Signed-off-by: Lucas Zampieri <lzampier@redhat.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://patch.msgid.link/20251024083647.475239-4-lzampier@redhat.com |
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| ipc | ||
| kernel | ||
| lib | ||
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| .clang-format | ||
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| .cocciconfig | ||
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| .get_maintainer.ignore | ||
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| README | ||
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.