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| 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/page_64.h | |
| parent | c9a844c5100a01c024b59401e5963ff65d6b5f31 (diff) | |
| download | linux-f10bb00790dd3cf550f7ae6991c4d1a128802c00.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
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/page_64.h')
| -rw-r--r-- | arch/sparc/include/asm/page_64.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/sparc/include/asm/page_64.h b/arch/sparc/include/asm/page_64.h index 5961b2d8398a..8ee1f97589a1 100644 --- a/arch/sparc/include/asm/page_64.h +++ b/arch/sparc/include/asm/page_64.h @@ -17,6 +17,7 @@ #define HPAGE_SHIFT 23 #define REAL_HPAGE_SHIFT 22 +#define HPAGE_16GB_SHIFT 34 #define HPAGE_2GB_SHIFT 31 #define HPAGE_256MB_SHIFT 28 #define HPAGE_64K_SHIFT 16 @@ -28,7 +29,7 @@ #define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT) #define HAVE_ARCH_HUGETLB_UNMAPPED_AREA #define REAL_HPAGE_PER_HPAGE (_AC(1,UL) << (HPAGE_SHIFT - REAL_HPAGE_SHIFT)) -#define HUGE_MAX_HSTATE 4 +#define HUGE_MAX_HSTATE 5 #endif #ifndef __ASSEMBLY__ |