From 20916d4636a9b3c1bf562b305f91d126771edaf9 Mon Sep 17 00:00:00 2001 From: Anshuman Khandual Date: Fri, 5 Oct 2018 15:51:54 -0700 Subject: [PATCH] mm/hugetlb: add mmap() encodings for 32MB and 512MB page sizes ARM64 architecture also supports 32MB and 512MB HugeTLB page sizes. This just adds mmap() system call argument encoding for them. Link: http://lkml.kernel.org/r/1537841300-6979-1-git-send-email-anshuman.khandual@arm.com Signed-off-by: Anshuman Khandual Acked-by: Punit Agrawal Acked-by: Mike Kravetz Cc: Michal Hocko Cc: Will Deacon Cc: Catalin Marinas Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- 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 e4732d3c2998..b0f8e87235bd 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 015a4c0bbb47..7a8a26751c23 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 bfd5938fede6..d0f515d53299 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 dde1344f047c..6507ad0afc81 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 -- 2.30.2