1*8cf108c5SZhang Yi /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2*8cf108c5SZhang Yi #ifndef _ASM_X86_MMAN_H 3*8cf108c5SZhang Yi #define _ASM_X86_MMAN_H 4*8cf108c5SZhang Yi 5*8cf108c5SZhang Yi #define MAP_32BIT 0x40 /* only give out 32bit addresses */ 6*8cf108c5SZhang Yi 7*8cf108c5SZhang Yi #ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS 8*8cf108c5SZhang Yi /* 9*8cf108c5SZhang Yi * Take the 4 protection key bits out of the vma->vm_flags 10*8cf108c5SZhang Yi * value and turn them in to the bits that we can put in 11*8cf108c5SZhang Yi * to a pte. 12*8cf108c5SZhang Yi * 13*8cf108c5SZhang Yi * Only override these if Protection Keys are available 14*8cf108c5SZhang Yi * (which is only on 64-bit). 15*8cf108c5SZhang Yi */ 16*8cf108c5SZhang Yi #define arch_vm_get_page_prot(vm_flags) __pgprot( \ 17*8cf108c5SZhang Yi ((vm_flags) & VM_PKEY_BIT0 ? _PAGE_PKEY_BIT0 : 0) | \ 18*8cf108c5SZhang Yi ((vm_flags) & VM_PKEY_BIT1 ? _PAGE_PKEY_BIT1 : 0) | \ 19*8cf108c5SZhang Yi ((vm_flags) & VM_PKEY_BIT2 ? _PAGE_PKEY_BIT2 : 0) | \ 20*8cf108c5SZhang Yi ((vm_flags) & VM_PKEY_BIT3 ? _PAGE_PKEY_BIT3 : 0)) 21*8cf108c5SZhang Yi 22*8cf108c5SZhang Yi #define arch_calc_vm_prot_bits(prot, key) ( \ 23*8cf108c5SZhang Yi ((key) & 0x1 ? VM_PKEY_BIT0 : 0) | \ 24*8cf108c5SZhang Yi ((key) & 0x2 ? VM_PKEY_BIT1 : 0) | \ 25*8cf108c5SZhang Yi ((key) & 0x4 ? VM_PKEY_BIT2 : 0) | \ 26*8cf108c5SZhang Yi ((key) & 0x8 ? VM_PKEY_BIT3 : 0)) 27*8cf108c5SZhang Yi #endif 28*8cf108c5SZhang Yi 29*8cf108c5SZhang Yi #include <asm-generic/mman.h> 30*8cf108c5SZhang Yi 31*8cf108c5SZhang Yi #endif /* _ASM_X86_MMAN_H */ 32