[PATCH 04/10] powerpc/hugetlb: Add ABI defines for MAP_HUGE_16MB and MAP_HUGE_16GB
From: Anshuman Khandual <hidden>
Date: 2016-04-07 05:48:15
Also in:
linux-mm, lkml
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
This just adds user space exported ABI definitions for both 16MB and 16GB non default huge page sizes to be used with mmap() system call. Signed-off-by: Anshuman Khandual <redacted> --- arch/powerpc/include/uapi/asm/mman.h | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/arch/powerpc/include/uapi/asm/mman.h b/arch/powerpc/include/uapi/asm/mman.h
index 03c06ba..e78980b 100644
--- a/arch/powerpc/include/uapi/asm/mman.h
+++ b/arch/powerpc/include/uapi/asm/mman.h@@ -29,4 +29,7 @@ #define MAP_STACK 0x20000 /* give out an address that is best suited for process/thread stacks */ #define MAP_HUGETLB 0x40000 /* create a huge page mapping */ +#define MAP_HUGE_16MB (24 << MAP_HUGE_SHIFT) /* 16MB HugeTLB Page */ +#define MAP_HUGE_16GB (34 << MAP_HUGE_SHIFT) /* 16GB HugeTLB Page */ + #endif /* _UAPI_ASM_POWERPC_MMAN_H */
--
2.1.0