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Pipe interrupt registers live in their respective pipes' power wells, which are below PG0. That means that they must also be tracked as registers that are powered-off during dynamic DC states. There are probably more ranges that we need to track down and add to the powered_off_ranges. However, let's make this change only about pipe interrupt registers to fix some vblank timeouts observed due to the DMC wakelock not being taken for those registers. In the future, we might want to replace powered_off_ranges with a new table to represent registers in PG0, which should be probably easier to maintain. Any register not belonging to that table should be considered powered off during dynamic DC states and, as such, requiring the DMC wakelock for access. Bspec: 72519, 71583 Reviewed-by: Jouni Högander <jouni.hogander@intel.com> Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250113204306.112266-4-gustavo.sousa@intel.com |
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| .cocciconfig | ||
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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.