| Message ID | 1537841300-6979-1-git-send-email-anshuman.khandual@arm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [V2] mm/hugetlb: Add mmap() encodings for 32MB and 512MB page sizes | expand |
Anshuman Khandual <anshuman.khandual@arm.com> writes: > 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.khandual@arm.com> Thanks for adding the encodings. Acked-by: Punit Agrawal <punit.agrawal@arm.com> > --- > > Changes in V2: > - Updated SHM and MFD definitions per Mike > > 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
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.khandual@arm.com> > --- > > Changes in V2: > - Updated SHM and MFD definitions per Mike Thanks Anshuman, Acked-by: Mike Kravetz <mike.kravetz@oracle.com>
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
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.khandual@arm.com> --- Changes in V2: - Updated SHM and MFD definitions per Mike 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(+)