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Diffstat (limited to 'arch/ia64/include/asm/xen/page.h')
-rw-r--r-- | arch/ia64/include/asm/xen/page.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/xen/page.h b/arch/ia64/include/asm/xen/page.h new file mode 100644 index 000000000000..03441a780b5b --- /dev/null +++ b/arch/ia64/include/asm/xen/page.h | |||
@@ -0,0 +1,65 @@ | |||
1 | /****************************************************************************** | ||
2 | * arch/ia64/include/asm/xen/page.h | ||
3 | * | ||
4 | * Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp> | ||
5 | * VA Linux Systems Japan K.K. | ||
6 | * | ||
7 | * This program is free software; you can redistribute it and/or modify | ||
8 | * it under the terms of the GNU General Public License as published by | ||
9 | * the Free Software Foundation; either version 2 of the License, or | ||
10 | * (at your option) any later version. | ||
11 | * | ||
12 | * This program is distributed in the hope that it will be useful, | ||
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
15 | * GNU General Public License for more details. | ||
16 | * | ||
17 | * You should have received a copy of the GNU General Public License | ||
18 | * along with this program; if not, write to the Free Software | ||
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
20 | * | ||
21 | */ | ||
22 | |||
23 | #ifndef _ASM_IA64_XEN_PAGE_H | ||
24 | #define _ASM_IA64_XEN_PAGE_H | ||
25 | |||
26 | #define INVALID_P2M_ENTRY (~0UL) | ||
27 | |||
28 | static inline unsigned long mfn_to_pfn(unsigned long mfn) | ||
29 | { | ||
30 | return mfn; | ||
31 | } | ||
32 | |||
33 | static inline unsigned long pfn_to_mfn(unsigned long pfn) | ||
34 | { | ||
35 | return pfn; | ||
36 | } | ||
37 | |||
38 | #define phys_to_machine_mapping_valid(_x) (1) | ||
39 | |||
40 | static inline void *mfn_to_virt(unsigned long mfn) | ||
41 | { | ||
42 | return __va(mfn << PAGE_SHIFT); | ||
43 | } | ||
44 | |||
45 | static inline unsigned long virt_to_mfn(void *virt) | ||
46 | { | ||
47 | return __pa(virt) >> PAGE_SHIFT; | ||
48 | } | ||
49 | |||
50 | /* for tpmfront.c */ | ||
51 | static inline unsigned long virt_to_machine(void *virt) | ||
52 | { | ||
53 | return __pa(virt); | ||
54 | } | ||
55 | |||
56 | static inline void set_phys_to_machine(unsigned long pfn, unsigned long mfn) | ||
57 | { | ||
58 | /* nothing */ | ||
59 | } | ||
60 | |||
61 | #define pte_mfn(_x) pte_pfn(_x) | ||
62 | #define mfn_pte(_x, _y) __pte_ma(0) /* unmodified use */ | ||
63 | #define __pte_ma(_x) ((pte_t) {(_x)}) /* unmodified use */ | ||
64 | |||
65 | #endif /* _ASM_IA64_XEN_PAGE_H */ | ||