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It is useful to have helper to check if the given two CPUs share last level cache. We can do that check by comparing fw_token or by comparing the cache ID. Currently we check just for fw_token as the cache ID is optional. This helper can be used to build the llc_sibling during arch specific topology parsing and feeding information to the sched_domains. This also helps to get rid of llc_id in the CPU topology as it is sort of duplicate information. Also add helper to check if the llc information in cacheinfo is valid or not. Link: https://lore.kernel.org/r/20220704101605.1318280-6-sudeep.holla@arm.com Tested-by: Ionela Voinescu <ionela.voinescu@arm.com> Tested-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: Gavin Shan <gshan@redhat.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> |
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
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| Makefile | ||
| 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 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.