projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * This program is free software; you can redistribute it and/or | |
| 3 | * modify it under the terms of the GNU General Public License | |
| 4 | * as published by the Free Software Foundation; either version | |
| 5 | * 2 of the License, or (at your option) any later version. | |
| 6 | */ | |
| c3617f72 DH |
7 | #ifndef _ASM_POWERPC_MMAN_H |
| 8 | #define _ASM_POWERPC_MMAN_H | |
| 1da177e4 | 9 | |
| c3617f72 | 10 | #include <uapi/asm/mman.h> |
| 1da177e4 | 11 | |
| ef3d3246 | 12 | #ifdef CONFIG_PPC64 |
| b3fcaaa8 SR |
13 | |
| 14 | #include <asm/cputable.h> | |
| 15 | #include <linux/mm.h> | |
| 16 | ||
| ef3d3246 DK |
17 | /* |
| 18 | * This file is included by linux/mman.h, so we can't use cacl_vm_prot_bits() | |
| 19 | * here. How important is the optimization? | |
| 20 | */ | |
| 21 | static inline unsigned long arch_calc_vm_prot_bits(unsigned long prot) | |
| 22 | { | |
| 23 | return (prot & PROT_SAO) ? VM_SAO : 0; | |
| 24 | } | |
| 25 | #define arch_calc_vm_prot_bits(prot) arch_calc_vm_prot_bits(prot) | |
| 26 | ||
| 27 | static inline pgprot_t arch_vm_get_page_prot(unsigned long vm_flags) | |
| 28 | { | |
| f5ea64dc | 29 | return (vm_flags & VM_SAO) ? __pgprot(_PAGE_SAO) : __pgprot(0); |
| ef3d3246 DK |
30 | } |
| 31 | #define arch_vm_get_page_prot(vm_flags) arch_vm_get_page_prot(vm_flags) | |
| 32 | ||
| 33 | static inline int arch_validate_prot(unsigned long prot) | |
| 34 | { | |
| 35 | if (prot & ~(PROT_READ | PROT_WRITE | PROT_EXEC | PROT_SEM | PROT_SAO)) | |
| 36 | return 0; | |
| 37 | if ((prot & PROT_SAO) && !cpu_has_feature(CPU_FTR_SAO)) | |
| 38 | return 0; | |
| 39 | return 1; | |
| 40 | } | |
| 41 | #define arch_validate_prot(prot) arch_validate_prot(prot) | |
| 42 | ||
| 43 | #endif /* CONFIG_PPC64 */ | |
| a37c8875 | 44 | #endif /* _ASM_POWERPC_MMAN_H */ |