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Certain TLB invalidation operations send multiple H2G messages per seqno with only the final H2G containing the valid seqno - the others carry an invalid seqno. The G2H handler drops these invalid seqno to aovid prematurely signaling a TLB invalidation fence. With TLB_INVALIDATION_SEQNO_INVALID used to indicate in progress multi-step TLB invalidations, reset tdr to ensure that timeout won't prematurely trigger when G2H actions are still ongoing. v2: Remove lock from xe_tlb_inval_reset_timeout. (Matthew B) v3: Squash with dependent patch from Matthew Brost' series. Signed-off-by: Brian Nguyen <brian3.nguyen@intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Signed-off-by: Matthew Brost <matthew.brost@intel.com> Link: https://patch.msgid.link/20251212213225.3564537-13-brian3.nguyen@intel.com |
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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 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.