5c7dd7acc3
repo: https://github.com/T-head-Semi/linux commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
32 lines
1002 B
C
32 lines
1002 B
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
|
|
#ifndef _ASM_X86_MMAN_H
|
|
#define _ASM_X86_MMAN_H
|
|
|
|
#define MAP_32BIT 0x40 /* only give out 32bit addresses */
|
|
|
|
#ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
|
|
/*
|
|
* Take the 4 protection key bits out of the vma->vm_flags
|
|
* value and turn them in to the bits that we can put in
|
|
* to a pte.
|
|
*
|
|
* Only override these if Protection Keys are available
|
|
* (which is only on 64-bit).
|
|
*/
|
|
#define arch_vm_get_page_prot(vm_flags) __pgprot( \
|
|
((vm_flags) & VM_PKEY_BIT0 ? _PAGE_PKEY_BIT0 : 0) | \
|
|
((vm_flags) & VM_PKEY_BIT1 ? _PAGE_PKEY_BIT1 : 0) | \
|
|
((vm_flags) & VM_PKEY_BIT2 ? _PAGE_PKEY_BIT2 : 0) | \
|
|
((vm_flags) & VM_PKEY_BIT3 ? _PAGE_PKEY_BIT3 : 0))
|
|
|
|
#define arch_calc_vm_prot_bits(prot, key) ( \
|
|
((key) & 0x1 ? VM_PKEY_BIT0 : 0) | \
|
|
((key) & 0x2 ? VM_PKEY_BIT1 : 0) | \
|
|
((key) & 0x4 ? VM_PKEY_BIT2 : 0) | \
|
|
((key) & 0x8 ? VM_PKEY_BIT3 : 0))
|
|
#endif
|
|
|
|
#include <asm-generic/mman.h>
|
|
|
|
#endif /* _ASM_X86_MMAN_H */
|