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While the spec only asks us to do the WM0 latency bump for 16Gb DRAM devices I believe we should apply it for larger DRAM chips. At the time the w/a was added there were no larger chips on the market, but I think I've seen at least 32Gb DDR4 chips being available these days. Whether it's possible to actually find suitable DIMMs for the affected systems with largers chips I don't know. Also it's not known whether the 1 usec latency bump would be sufficient for larger chips. Someone would need to find such DIMMs and test this. Fortunately we do have a bit of extra latency already with the 1 usec bump, as the actual requirement was .4 usec for for 16Gb chips. Reviewed-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250919193000.17665-2-ville.syrjala@linux.intel.com |
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| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
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| net | ||
| rust | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .clippy.toml | ||
| .cocciconfig | ||
| .editorconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .pylintrc | ||
| .rustfmt.toml | ||
| COPYING | ||
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| Kbuild | ||
| Kconfig | ||
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| 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 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.