jdl@freescale.com | a37c887 | 2005-09-07 15:27:09 -0500 | [diff] [blame] | 1 | #ifndef _ASM_POWERPC_MMAN_H |
| 2 | #define _ASM_POWERPC_MMAN_H |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | |
Dave Kleikamp | ef3d324 | 2008-07-08 00:28:54 +1000 | [diff] [blame^] | 4 | #include <asm/cputable.h> |
Michael S. Tsirkin | 5f6164f | 2006-02-15 15:17:39 -0800 | [diff] [blame] | 5 | #include <asm-generic/mman.h> |
Dave Kleikamp | ef3d324 | 2008-07-08 00:28:54 +1000 | [diff] [blame^] | 6 | #include <linux/mm.h> |
Michael S. Tsirkin | 5f6164f | 2006-02-15 15:17:39 -0800 | [diff] [blame] | 7 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8 | /* |
| 9 | * This program is free software; you can redistribute it and/or |
| 10 | * modify it under the terms of the GNU General Public License |
| 11 | * as published by the Free Software Foundation; either version |
| 12 | * 2 of the License, or (at your option) any later version. |
| 13 | */ |
| 14 | |
Dave Kleikamp | aba46c5 | 2008-07-08 00:28:52 +1000 | [diff] [blame] | 15 | #define PROT_SAO 0x10 /* Strong Access Ordering */ |
| 16 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | #define MAP_RENAME MAP_ANONYMOUS /* In SunOS terminology */ |
| 18 | #define MAP_NORESERVE 0x40 /* don't reserve swap pages */ |
| 19 | #define MAP_LOCKED 0x80 |
| 20 | |
| 21 | #define MAP_GROWSDOWN 0x0100 /* stack-like segment */ |
| 22 | #define MAP_DENYWRITE 0x0800 /* ETXTBSY */ |
| 23 | #define MAP_EXECUTABLE 0x1000 /* mark it as an executable */ |
| 24 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 25 | #define MCL_CURRENT 0x2000 /* lock all currently mapped pages */ |
| 26 | #define MCL_FUTURE 0x4000 /* lock all additions to address space */ |
| 27 | |
| 28 | #define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */ |
| 29 | #define MAP_NONBLOCK 0x10000 /* do not block on IO */ |
| 30 | |
Dave Kleikamp | ef3d324 | 2008-07-08 00:28:54 +1000 | [diff] [blame^] | 31 | #ifdef CONFIG_PPC64 |
| 32 | /* |
| 33 | * This file is included by linux/mman.h, so we can't use cacl_vm_prot_bits() |
| 34 | * here. How important is the optimization? |
| 35 | */ |
| 36 | static inline unsigned long arch_calc_vm_prot_bits(unsigned long prot) |
| 37 | { |
| 38 | return (prot & PROT_SAO) ? VM_SAO : 0; |
| 39 | } |
| 40 | #define arch_calc_vm_prot_bits(prot) arch_calc_vm_prot_bits(prot) |
| 41 | |
| 42 | static inline pgprot_t arch_vm_get_page_prot(unsigned long vm_flags) |
| 43 | { |
| 44 | return (vm_flags & VM_SAO) ? __pgprot(_PAGE_SAO) : 0; |
| 45 | } |
| 46 | #define arch_vm_get_page_prot(vm_flags) arch_vm_get_page_prot(vm_flags) |
| 47 | |
| 48 | static inline int arch_validate_prot(unsigned long prot) |
| 49 | { |
| 50 | if (prot & ~(PROT_READ | PROT_WRITE | PROT_EXEC | PROT_SEM | PROT_SAO)) |
| 51 | return 0; |
| 52 | if ((prot & PROT_SAO) && !cpu_has_feature(CPU_FTR_SAO)) |
| 53 | return 0; |
| 54 | return 1; |
| 55 | } |
| 56 | #define arch_validate_prot(prot) arch_validate_prot(prot) |
| 57 | |
| 58 | #endif /* CONFIG_PPC64 */ |
jdl@freescale.com | a37c887 | 2005-09-07 15:27:09 -0500 | [diff] [blame] | 59 | #endif /* _ASM_POWERPC_MMAN_H */ |