| H. Peter Anvin | 1965aae | 2008-10-22 22:26:29 -0700 | [diff] [blame] | 1 | #ifndef _ASM_X86_MMAN_H |
| 2 | #define _ASM_X86_MMAN_H |
| Thomas Gleixner | 5c8eec5 | 2007-10-15 23:28:21 +0200 | [diff] [blame] | 3 | |
| Thomas Gleixner | 5c8eec5 | 2007-10-15 23:28:21 +0200 | [diff] [blame] | 4 | #define MAP_32BIT 0x40 /* only give out 32bit addresses */ |
| 5 | |
| Dave Hansen | 8f62c88 | 2016-02-12 13:02:10 -0800 | [diff] [blame] | 6 | #ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS |
| 7 | /* |
| 8 | * Take the 4 protection key bits out of the vma->vm_flags |
| 9 | * value and turn them in to the bits that we can put in |
| 10 | * to a pte. |
| 11 | * |
| 12 | * Only override these if Protection Keys are available |
| 13 | * (which is only on 64-bit). |
| 14 | */ |
| 15 | #define arch_vm_get_page_prot(vm_flags) __pgprot( \ |
| 16 | ((vm_flags) & VM_PKEY_BIT0 ? _PAGE_PKEY_BIT0 : 0) | \ |
| 17 | ((vm_flags) & VM_PKEY_BIT1 ? _PAGE_PKEY_BIT1 : 0) | \ |
| 18 | ((vm_flags) & VM_PKEY_BIT2 ? _PAGE_PKEY_BIT2 : 0) | \ |
| 19 | ((vm_flags) & VM_PKEY_BIT3 ? _PAGE_PKEY_BIT3 : 0)) |
| Dave Hansen | 878ba03 | 2016-02-12 13:02:37 -0800 | [diff] [blame] | 20 | |
| 21 | #define arch_calc_vm_prot_bits(prot, key) ( \ |
| 22 | ((key) & 0x1 ? VM_PKEY_BIT0 : 0) | \ |
| 23 | ((key) & 0x2 ? VM_PKEY_BIT1 : 0) | \ |
| 24 | ((key) & 0x4 ? VM_PKEY_BIT2 : 0) | \ |
| 25 | ((key) & 0x8 ? VM_PKEY_BIT3 : 0)) |
| Dave Hansen | 8f62c88 | 2016-02-12 13:02:10 -0800 | [diff] [blame] | 26 | #endif |
| 27 | |
| Arnd Bergmann | 73a2d09 | 2009-06-18 21:48:20 +0200 | [diff] [blame] | 28 | #include <asm-generic/mman.h> |
| Thomas Gleixner | 5c8eec5 | 2007-10-15 23:28:21 +0200 | [diff] [blame] | 29 | |
| H. Peter Anvin | 1965aae | 2008-10-22 22:26:29 -0700 | [diff] [blame] | 30 | #endif /* _ASM_X86_MMAN_H */ |