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| author | Nitin Gupta <nitin.m.gupta@oracle.com> | 2017-08-12 02:46:50 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-08-16 07:48:07 +0300 |
| commit | df7b2155bbe75525531e47c8a67ae4f1dbbae976 (patch) | |
| tree | 8a41a2304dc99e7fa024a5debef0ac9197231842 /arch/sparc/include/asm/hugetlb.h | |
| parent | 44382b0195e608732b0bed14d51b5e5f79f46471 (diff) | |
| download | linux-df7b2155bbe75525531e47c8a67ae4f1dbbae976.tar.xz | |
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
Cc: Anthony Yznaga <anthony.yznaga@oracle.com>
Reviewed-by: Bob Picco <bob.picco@oracle.com>
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); |