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| author | Nitin Gupta <nitin.m.gupta@oracle.com> | 2017-08-11 16:46:50 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-08-15 21:48:07 -0700 |
| commit | df7b2155bbe75525531e47c8a67ae4f1dbbae976 (patch) | |
| tree | 8a41a2304dc99e7fa024a5debef0ac9197231842 /arch/sparc/include/asm/pgtable_64.h | |
| parent | 44382b0195e608732b0bed14d51b5e5f79f46471 (diff) | |
| download | linux-df7b2155bbe75525531e47c8a67ae4f1dbbae976.tar.bz2 | |
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/pgtable_64.h')
| -rw-r--r-- | arch/sparc/include/asm/pgtable_64.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h index 2579f5a22f46..4fefe3762083 100644 --- a/arch/sparc/include/asm/pgtable_64.h +++ b/arch/sparc/include/asm/pgtable_64.h @@ -414,6 +414,11 @@ static inline bool is_hugetlb_pmd(pmd_t pmd) return !!(pmd_val(pmd) & _PAGE_PMD_HUGE); } +static inline bool is_hugetlb_pud(pud_t pud) +{ + return !!(pud_val(pud) & _PAGE_PUD_HUGE); +} + #ifdef CONFIG_TRANSPARENT_HUGEPAGE static inline pmd_t pmd_mkhuge(pmd_t pmd) { |