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- /* 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 */
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