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| author |   Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2017-07-28 10:31:25 +0530 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2017-08-15 23:20:30 +1000 |
| commit | e24a1307ba1f99fc62a0bd61d5e87fcfb6d5503d (patch) | |
| tree | 8f19f0910ae30e1f8482b8d6c153e90c83b8eaaa /include/linux/hugetlb.h | |
| parent | powerpc/hugetlb: fix page rights verification in gup_hugepte() (diff) | |
| download | wireguard-linux-e24a1307ba1f99fc62a0bd61d5e87fcfb6d5503d.tar.xz wireguard-linux-e24a1307ba1f99fc62a0bd61d5e87fcfb6d5503d.zip | |
mm/hugetlb: Allow arch to override and call the weak function
When running in guest mode ppc64 supports a different mechanism for hugetlb
allocation/reservation. The LPAR management application called HMC can
be used to reserve a set of hugepages and we pass the details of
reserved pages via device tree to the guest. (more details in
htab_dt_scan_hugepage_blocks()) . We do the memblock_reserve of the range
and later in the boot sequence, we add the reserved range to huge_boot_pages.
But to enable 16G hugetlb on baremetal config (when we are not running as guest)
we want to do memblock reservation during boot. Generic code already does this
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'include/linux/hugetlb.h')
| -rw-r--r-- | include/linux/hugetlb.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index 0ed8e41aaf11..8bbbd37ab105 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -358,6 +358,7 @@ int huge_add_to_page_cache(struct page *page, struct address_space *mapping, pgoff_t idx); /* arch callback */ +int __init __alloc_bootmem_huge_page(struct hstate *h); int __init alloc_bootmem_huge_page(struct hstate *h); void __init hugetlb_bad_size(void); |