| Christopher Ferris | 0437c52 | 2013-11-07 14:16:29 -0800 | [diff] [blame] | 1 | #ifndef _ASM_X86_MMAN_H |
| 2 | #define _ASM_X86_MMAN_H |
| 3 | |
| 4 | #define MAP_32BIT 0x40 /* only give out 32bit addresses */ |
| 5 | |
| 6 | #define MAP_HUGE_2MB (21 << MAP_HUGE_SHIFT) |
| 7 | #define MAP_HUGE_1GB (30 << MAP_HUGE_SHIFT) |
| 8 | |
| Christopher Ferris | ccfaccd | 2016-08-24 12:11:31 -0700 | [diff] [blame^] | 9 | #ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS |
| 10 | /* |
| 11 | * Take the 4 protection key bits out of the vma->vm_flags |
| 12 | * value and turn them in to the bits that we can put in |
| 13 | * to a pte. |
| 14 | * |
| 15 | * Only override these if Protection Keys are available |
| 16 | * (which is only on 64-bit). |
| 17 | */ |
| 18 | #define arch_vm_get_page_prot(vm_flags) __pgprot( \ |
| 19 | ((vm_flags) & VM_PKEY_BIT0 ? _PAGE_PKEY_BIT0 : 0) | \ |
| 20 | ((vm_flags) & VM_PKEY_BIT1 ? _PAGE_PKEY_BIT1 : 0) | \ |
| 21 | ((vm_flags) & VM_PKEY_BIT2 ? _PAGE_PKEY_BIT2 : 0) | \ |
| 22 | ((vm_flags) & VM_PKEY_BIT3 ? _PAGE_PKEY_BIT3 : 0)) |
| 23 | |
| 24 | #define arch_calc_vm_prot_bits(prot, key) ( \ |
| 25 | ((key) & 0x1 ? VM_PKEY_BIT0 : 0) | \ |
| 26 | ((key) & 0x2 ? VM_PKEY_BIT1 : 0) | \ |
| 27 | ((key) & 0x4 ? VM_PKEY_BIT2 : 0) | \ |
| 28 | ((key) & 0x8 ? VM_PKEY_BIT3 : 0)) |
| 29 | #endif |
| 30 | |
| Christopher Ferris | 0437c52 | 2013-11-07 14:16:29 -0800 | [diff] [blame] | 31 | #include <asm-generic/mman.h> |
| 32 | |
| 33 | #endif /* _ASM_X86_MMAN_H */ |