mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-25 10:43:41 +07:00
20916d4636
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 <anshuman.khandual@arm.com> Acked-by: Punit Agrawal <punit.agrawal@arm.com> Acked-by: Mike Kravetz <mike.kravetz@oracle.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Will Deacon <will.deacon@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
36 lines
1.3 KiB
C
36 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
|
|
#ifndef _UAPI_LINUX_MEMFD_H
|
|
#define _UAPI_LINUX_MEMFD_H
|
|
|
|
#include <asm-generic/hugetlb_encode.h>
|
|
|
|
/* flags for memfd_create(2) (unsigned int) */
|
|
#define MFD_CLOEXEC 0x0001U
|
|
#define MFD_ALLOW_SEALING 0x0002U
|
|
#define MFD_HUGETLB 0x0004U
|
|
|
|
/*
|
|
* Huge page size encoding when MFD_HUGETLB is specified, and a huge page
|
|
* size other than the default is desired. See hugetlb_encode.h.
|
|
* All known huge page size encodings are provided here. It is the
|
|
* responsibility of the application to know which sizes are supported on
|
|
* the running system. See mmap(2) man page for details.
|
|
*/
|
|
#define MFD_HUGE_SHIFT HUGETLB_FLAG_ENCODE_SHIFT
|
|
#define MFD_HUGE_MASK HUGETLB_FLAG_ENCODE_MASK
|
|
|
|
#define MFD_HUGE_64KB HUGETLB_FLAG_ENCODE_64KB
|
|
#define MFD_HUGE_512KB HUGETLB_FLAG_ENCODE_512KB
|
|
#define MFD_HUGE_1MB HUGETLB_FLAG_ENCODE_1MB
|
|
#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
|
|
|
|
#endif /* _UAPI_LINUX_MEMFD_H */
|