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The syctr interrupt could set the affinity to any cores in the SoC. However, the default affinity is set to cpu 0. This timer will be used as broadcast timer on all the i.MX SoCs. Because DYNIRQ flag is set, the core time framework will runtime set the interrupt affinity to the cores that needs to wake up and the cpumask will runtime set to the core that will be wake up. So even the sysctr initialization use cpumask 0, there is no issue, the current patch is just use cpu_possible_mask to show the fact that the timer supports routed to all the cpu cores and nothing else. Signed-off-by: Peng Fan <peng.fan@nxp.com> Link: https://lore.kernel.org/r/20211201125030.2307746-2-peng.fan@oss.nxp.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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 Restructured Text 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.