On 9/24/18 7:08 PM, Anshuman Khandual wrote:
> ARM64 architecture also supports 32MB and 512MB HugeTLB page sizes.
> This just adds mmap() system call argument encoding for them.
>
> Signed-off-by: Anshuman Khandual <anshuman.khand...@arm.com>
> ---
>
> Changes in V2:
> - Updated SHM and MFD definitions per Mike
Thanks Anshuman,
Acked-by: Mike Kravetz <mike.krav...@oracle.com>
--
Mike Kravetz
>
> include/uapi/asm-generic/hugetlb_encode.h | 2 ++
> include/uapi/linux/memfd.h | 2 ++
> include/uapi/linux/mman.h | 2 ++
> include/uapi/linux/shm.h | 2 ++
> 4 files changed, 8 insertions(+)
>
> diff --git a/include/uapi/asm-generic/hugetlb_encode.h
> b/include/uapi/asm-generic/hugetlb_encode.h
> index e4732d3..b0f8e87 100644
> --- a/include/uapi/asm-generic/hugetlb_encode.h
> +++ b/include/uapi/asm-generic/hugetlb_encode.h
> @@ -26,7 +26,9 @@
> #define HUGETLB_FLAG_ENCODE_2MB (21 <<
> HUGETLB_FLAG_ENCODE_SHIFT)
> #define HUGETLB_FLAG_ENCODE_8MB (23 <<
> HUGETLB_FLAG_ENCODE_SHIFT)
> #define HUGETLB_FLAG_ENCODE_16MB (24 << HUGETLB_FLAG_ENCODE_SHIFT)
> +#define HUGETLB_FLAG_ENCODE_32MB (25 << HUGETLB_FLAG_ENCODE_SHIFT)
> #define HUGETLB_FLAG_ENCODE_256MB (28 << HUGETLB_FLAG_ENCODE_SHIFT)
> +#define HUGETLB_FLAG_ENCODE_512MB (29 << HUGETLB_FLAG_ENCODE_SHIFT)
> #define HUGETLB_FLAG_ENCODE_1GB (30 <<
> HUGETLB_FLAG_ENCODE_SHIFT)
> #define HUGETLB_FLAG_ENCODE_2GB (31 <<
> HUGETLB_FLAG_ENCODE_SHIFT)
> #define HUGETLB_FLAG_ENCODE_16GB (34 << HUGETLB_FLAG_ENCODE_SHIFT)
> diff --git a/include/uapi/linux/memfd.h b/include/uapi/linux/memfd.h
> index 015a4c0..7a8a267 100644
> --- a/include/uapi/linux/memfd.h
> +++ b/include/uapi/linux/memfd.h
> @@ -25,7 +25,9 @@
> #define MFD_HUGE_2MB HUGETLB_FLAG_ENCODE_2MB
> #define MFD_HUGE_8MB HUGETLB_FLAG_ENCODE_8MB
> #define MFD_HUGE_16MB HUGETLB_FLAG_ENCODE_16MB
> +#define MFD_HUGE_32MB HUGETLB_FLAG_ENCODE_32MB
> #define MFD_HUGE_256MB HUGETLB_FLAG_ENCODE_256MB
> +#define MFD_HUGE_512MB HUGETLB_FLAG_ENCODE_512MB
> #define MFD_HUGE_1GB HUGETLB_FLAG_ENCODE_1GB
> #define MFD_HUGE_2GB HUGETLB_FLAG_ENCODE_2GB
> #define MFD_HUGE_16GB HUGETLB_FLAG_ENCODE_16GB
> diff --git a/include/uapi/linux/mman.h b/include/uapi/linux/mman.h
> index bfd5938..d0f515d 100644
> --- a/include/uapi/linux/mman.h
> +++ b/include/uapi/linux/mman.h
> @@ -28,7 +28,9 @@
> #define MAP_HUGE_2MB HUGETLB_FLAG_ENCODE_2MB
> #define MAP_HUGE_8MB HUGETLB_FLAG_ENCODE_8MB
> #define MAP_HUGE_16MB HUGETLB_FLAG_ENCODE_16MB
> +#define MAP_HUGE_32MB HUGETLB_FLAG_ENCODE_32MB
> #define MAP_HUGE_256MB HUGETLB_FLAG_ENCODE_256MB
> +#define MAP_HUGE_512MB HUGETLB_FLAG_ENCODE_512MB
> #define MAP_HUGE_1GB HUGETLB_FLAG_ENCODE_1GB
> #define MAP_HUGE_2GB HUGETLB_FLAG_ENCODE_2GB
> #define MAP_HUGE_16GB HUGETLB_FLAG_ENCODE_16GB
> diff --git a/include/uapi/linux/shm.h b/include/uapi/linux/shm.h
> index dde1344..6507ad0 100644
> --- a/include/uapi/linux/shm.h
> +++ b/include/uapi/linux/shm.h
> @@ -65,7 +65,9 @@ struct shmid_ds {
> #define SHM_HUGE_2MB HUGETLB_FLAG_ENCODE_2MB
> #define SHM_HUGE_8MB HUGETLB_FLAG_ENCODE_8MB
> #define SHM_HUGE_16MB HUGETLB_FLAG_ENCODE_16MB
> +#define SHM_HUGE_32MB HUGETLB_FLAG_ENCODE_32MB
> #define SHM_HUGE_256MB HUGETLB_FLAG_ENCODE_256MB
> +#define SHM_HUGE_512MB HUGETLB_FLAG_ENCODE_512MB
> #define SHM_HUGE_1GB HUGETLB_FLAG_ENCODE_1GB
> #define SHM_HUGE_2GB HUGETLB_FLAG_ENCODE_2GB
> #define SHM_HUGE_16GB HUGETLB_FLAG_ENCODE_16GB
>
