On Tuesday 04 April 2017 11:33 AM, Anshuman Khandual wrote:
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 <khand...@linux.vnet.ibm.com> --- These defined values will be used along with MAP_HUGETLB while calling mmap() system call if the desired HugeTLB page size is not the default one. Follows similar definitions present in x86. arch/x86/include/uapi/asm/mman.h:#define MAP_HUGE_2MB (21 << MAP_HUGE_SHIFT) arch/x86/include/uapi/asm/mman.h:#define MAP_HUGE_1GB (30 << MAP_HUGE_SHIFT) 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 */
I am doing a similar patch as part of 1G and hugetlb migration series. Can you add 2M and 1G #defines also so that i can drop the patch from my series and pick this ?
-aneesh
