/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */

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#ifndef _ASM_X86_MMAN_H

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#define _ASM_X86_MMAN_H

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#define MAP_32BIT 0x40 /* only give out 32bit addresses */

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#ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS

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/*

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* Take the 4 protection key bits out of the vma->vm_flags

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* value and turn them in to the bits that we can put in

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* to a pte.

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*

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* Only override these if Protection Keys are available

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* (which is only on 64-bit).

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*/

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#define arch_vm_get_page_prot(vm_flags) __pgprot( \

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((vm_flags) & VM_PKEY_BIT0 ? _PAGE_PKEY_BIT0 : 0) | \

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((vm_flags) & VM_PKEY_BIT1 ? _PAGE_PKEY_BIT1 : 0) | \

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((vm_flags) & VM_PKEY_BIT2 ? _PAGE_PKEY_BIT2 : 0) | \

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((vm_flags) & VM_PKEY_BIT3 ? _PAGE_PKEY_BIT3 : 0))

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#define arch_calc_vm_prot_bits(prot, key) ( \

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((key) & 0x1 ? VM_PKEY_BIT0 : 0) | \

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((key) & 0x2 ? VM_PKEY_BIT1 : 0) | \

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((key) & 0x4 ? VM_PKEY_BIT2 : 0) | \

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((key) & 0x8 ? VM_PKEY_BIT3 : 0))

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#endif

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#include <asm-generic/mman.h>

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#endif /* _ASM_X86_MMAN_H */

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