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26b3a8b25e
The "wait usec" DSB command doesn't quite seem to able to guarantee that it always waits at least the specified amount of usecs. Some of that could be just because it supposedly just does some kind of dumb timestamp comparison internally. But I also see cases where two hardware timestamps sampled on each side of the "wait usec" command come out one less than expected. So it looks like we always need at least a +1 to guarantee that we never wait less than specified. Always apply that adjustment in dsb_wait_usec(). Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250207223159.14132-2-ville.syrjala@linux.intel.com Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.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.