16G huge page support for powerpc
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- v1 Latest4 patches 2 repliesIn review
Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/4 | allow arch specific function for allocating gigantic pagesinclude/ mm/ | +18 | 1 reply | |
| 2/4 | powerpc: function for allocating gigantic pagesarch/ | +19 | 0 replies | |
| 3/4 | powerpc: scan device tree and save gigantic page locationsarch/ arch/ include/ | +59 | 0 replies | |
| 4/4 | powerpc: define page support for 16G pagesarch/ | +10 | 0 replies |
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Cover letter [PATCH 0/4] 16G huge page support for powerpc
This patch set builds on Andi Kleen's patches for GB pages for hugetlb posted on March 16th. This set adds support for 16G huge pages on ppc64. Supporting multiple huge page sizes on ppc64 as defined in Andi's patches is not a part of this set; that will be included in a future patch.
The first patch here adds an arch callback since the 16G pages are not allocated from bootmem. The 16G pages have to be reserved prior to boot-time. The location of these pages are indicated in the device tree.
Support for 16G pages requires a POWER5+ or later machine and a little bit of memory.
Jon
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