a6e12013d6
to #34407882 commit 0ed11dc41fe828a3d2b69220347b3a2ed9795ba9 openEuler hulk inclusion category: feature feature: ARM MPAM support bugzilla: 48265 CVE: NA -------------------------------- The alpha MPAM table contains a pointer to the PPTT cache, which it expects to be unique, which isn't guaranteed. Ideally we'd take a cache-id, but the hardware doesn't have a suitable property, instead arm64 will generate an id from the cpu affinity ids. To find the cache id we need to find the cacheinfo structure, which we can do if we have a pptt cpu_node (different to the cache node), as this is the fw_token used to match the Processor Container that contains all the CPUs that share this cache. How can we find the expected-to-be-unique cpu_node from the cache_node? ... add acpi_pptt_find_cache_backwards() to find a PPTT processor node given a PPTT cache node. This is totally broken as many processor nodes may point at the same PPTT cache indicating different instances of the cache. (e.g. all the L1 caches are the same shape, but they aren't the same cache). This only works if you cooked your PPTT table to look like this. Signed-off-by: James Morse <james.morse@arm.com> # ... but its still GPLv2 Signed-off-by: Wang ShaoBo <bobo.shaobowang@huawei.com> Reviewed-by: Xie XiuQi <xiexiuqi@huawei.com> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Reviewed-by: Cheng Jian <cj.chengjian@huawei.com> Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> Signed-off-by: Xin Hao <xhao@linux.alibaba.com> Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com> |
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| drivers | ||
| fs | ||
| include | ||
| init | ||
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| kernel | ||
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| .clang-format | ||
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| README | ||
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.