diff options
| author |   Nitin Gupta <nitin.m.gupta@oracle.com> | 2017-07-29 11:42:18 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2017-08-09 22:12:19 -0700 |
| commit | f10bb00790dd3cf550f7ae6991c4d1a128802c00 (patch) | |
| tree | 3c02fcd72583fb36b3cb43115cb4a92c40f2c519 /arch/sparc/include/asm/hugetlb.h | |
| parent | sparc64: Support huge PUD case in get_user_pages (diff) | |
| download | linux-dev-f10bb00790dd3cf550f7ae6991c4d1a128802c00.tar.xz linux-dev-f10bb00790dd3cf550f7ae6991c4d1a128802c00.zip | |
sparc64: Add 16GB hugepage support
Adds support for 16GB hugepage size. To use this page size
use kernel parameters as:
default_hugepagesz=16G hugepagesz=16G hugepages=10
Testing:
Tested with the stream benchmark which allocates 48G of
arrays backed by 16G hugepages and does RW operation on
them in parallel.
Orabug: 25362942
Signed-off-by: Nitin Gupta <nitin.m.gupta@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/include/asm/hugetlb.h')
| -rw-r--r-- | arch/sparc/include/asm/hugetlb.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h index d1f837dc77a4..0ca7caab1b06 100644 --- a/arch/sparc/include/asm/hugetlb.h +++ b/arch/sparc/include/asm/hugetlb.h @@ -4,6 +4,13 @@ #include <asm/page.h> #include <asm-generic/hugetlb.h> +#ifdef CONFIG_HUGETLB_PAGE +struct pud_huge_patch_entry { + unsigned int addr; + unsigned int insn; +}; +extern struct pud_huge_patch_entry __pud_huge_patch, __pud_huge_patch_end; +#endif void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *ptep, pte_t pte); |