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d57df7a7b7
Add some thermal trip points. We can't undervolt the CPUs to save power when we underclock them, so there isn't really a point in throttling them until we are about to overheat. As such, the passive trip point is right below the critical trip point. The critical trip point is the extended/industrial-grade maximum junction temperature of 100C minus the maximum temperature sensor error of 3.5C (in the range -55C to 110C). Automotive- and military-grade parts can go up to 125C, but as far as I can tell there is no way to detect them at runtime. Userspace can adjust the trip points at runtime, but this may not be viable when booting above 100C. I think it's reasonable to ask automotive/military users to edit their device trees to bump the trip points, but if that proves to be an issue we can always go with no default temperatures. However, that wouldn't be too nice for the majority of extended/industrial users. Signed-off-by: Sean Anderson <sean.anderson@linux.dev> Link: https://lore.kernel.org/r/20240812215129.3599832-4-sean.anderson@linux.dev Signed-off-by: Michal Simek <michal.simek@amd.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.