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| 30 | #ifndef __ia64_PAGE_H__ |
30 | #ifndef __ia64_PAGE_H__ |
| 31 | #define __ia64_PAGE_H__ |
31 | #define __ia64_PAGE_H__ |
| 32 | 32 | ||
| 33 | #include <arch/mm/frame.h> |
33 | #include <arch/mm/frame.h> |
| 34 | #include <genarch/mm/page_ht.h> |
34 | #include <genarch/mm/page_ht.h> |
| - | 35 | #include <arch/mm/asid.h> |
|
| 35 | #include <arch/types.h> |
36 | #include <arch/types.h> |
| 36 | #include <typedefs.h> |
37 | #include <typedefs.h> |
| 37 | #include <debug.h> |
38 | #include <debug.h> |
| 38 | 39 | ||
| 39 | #define PAGE_SIZE FRAME_SIZE |
40 | #define PAGE_SIZE FRAME_SIZE |
| Line 44... | Line 45... | ||
| 44 | 45 | ||
| 45 | #define GET_PTL0_ADDRESS_ARCH() ((pte_t *) 0) |
46 | #define GET_PTL0_ADDRESS_ARCH() ((pte_t *) 0) |
| 46 | #define SET_PTL0_ADDRESS_ARCH(ptl0) |
47 | #define SET_PTL0_ADDRESS_ARCH(ptl0) |
| 47 | 48 | ||
| 48 | /** Implementation of page hash table interface. */ |
49 | /** Implementation of page hash table interface. */ |
| 49 | #define HT_ENTRIES_ARCH (VHPT_SIZE/sizeof(pte_t)) |
50 | #define HT_ENTRIES_ARCH (VHPT_SIZE/sizeof(pte_t)) |
| 50 | #define HT_HASH_ARCH(page, asid) vhpt_hash((page), (asid)) |
51 | #define HT_HASH_ARCH(page, asid) vhpt_hash((page), (asid)) |
| 51 | #define HT_COMPARE_ARCH(page, asid, t) 0 |
52 | #define HT_COMPARE_ARCH(page, asid, t) vhpt_compare((page), (asid), (t)) |
| 52 | #define HT_SLOT_EMPTY_ARCH(t) 1 |
53 | #define HT_SLOT_EMPTY_ARCH(t) ((t)->present.tag.tag_info.ti) |
| 53 | #define HT_INVALIDATE_SLOT_ARCH(t) |
54 | #define HT_INVALIDATE_SLOT_ARCH(t) (t)->present.tag.tag_info.ti = true |
| 54 | #define HT_GET_NEXT_ARCH(t) 0 |
55 | #define HT_GET_NEXT_ARCH(t) (t)->present.next |
| 55 | #define HT_SET_NEXT_ARCH(t, s) |
56 | #define HT_SET_NEXT_ARCH(t, s) (t)->present.next = (s) |
| 56 | #define HT_SET_RECORD_ARCH(t, page, asid, frame, flags) |
57 | #define HT_SET_RECORD_ARCH(t, page, asid, frame, flags) vhpt_set_record(t, page, asid, frame, flags) |
| - | 58 | ||
| - | 59 | #define PPN_SHIFT 12 |
|
| 57 | 60 | ||
| 58 | #define VRN_SHIFT 61 |
61 | #define VRN_SHIFT 61 |
| 59 | #define VRN_MASK (7LL << VRN_SHIFT) |
62 | #define VRN_MASK (7LL << VRN_SHIFT) |
| 60 | 63 | ||
| 61 | #define VRN_KERNEL 0 |
64 | #define VRN_KERNEL 0 |
| 62 | #define VRN_WORK 1LL |
- | |
| 63 | #define REGION_REGISTERS 8 |
65 | #define REGION_REGISTERS 8 |
| 64 | 66 | ||
| 65 | #define VHPT_WIDTH 20 /* 1M */ |
67 | #define VHPT_WIDTH 20 /* 1M */ |
| 66 | #define VHPT_SIZE (1<<VHPT_WIDTH) |
68 | #define VHPT_SIZE (1<<VHPT_WIDTH) |
| 67 | 69 | ||
| 68 | #define VHPT_BASE page_ht /* Must be aligned to VHPT_SIZE */ |
70 | #define VHPT_BASE page_ht /* Must be aligned to VHPT_SIZE */ |
| 69 | 71 | ||
| - | 72 | /** Memory Attributes. */ |
|
| - | 73 | #define MA_WRITEBACK 0x0 |
|
| - | 74 | #define MA_UNCACHEABLE 0x4 |
|
| - | 75 | ||
| - | 76 | /** Privilege Levels. Only the most and the least privileged ones are ever used. */ |
|
| - | 77 | #define PL_KERNEL 0x0 |
|
| - | 78 | #define PL_USER 0x3 |
|
| - | 79 | ||
| - | 80 | /* Access Rigths. Only certain combinations are used by the kernel. */ |
|
| - | 81 | #define AR_READ 0x0 |
|
| - | 82 | #define AR_EXECUTE 0x1 |
|
| - | 83 | #define AR_WRITE 0x2 |
|
| - | 84 | ||
| 70 | struct vhpt_tag_info { |
85 | struct vhpt_tag_info { |
| 71 | unsigned long long tag : 63; |
86 | unsigned long long tag : 63; |
| 72 | unsigned ti : 1; |
87 | unsigned ti : 1; |
| 73 | } __attribute__ ((packed)); |
88 | } __attribute__ ((packed)); |
| 74 | 89 | ||
| Line 99... | Line 114... | ||
| 99 | 114 | ||
| 100 | /* Word 2 */ |
115 | /* Word 2 */ |
| 101 | union vhpt_tag tag; |
116 | union vhpt_tag tag; |
| 102 | 117 | ||
| 103 | /* Word 3 */ |
118 | /* Word 3 */ |
| 104 | unsigned long long next : 64; /**< Collision chain next pointer. */ |
119 | pte_t *next; /**< Collision chain next pointer. */ |
| 105 | } __attribute__ ((packed)); |
120 | } __attribute__ ((packed)); |
| 106 | 121 | ||
| 107 | struct vhpt_entry_not_present { |
122 | struct vhpt_entry_not_present { |
| 108 | /* Word 0 */ |
123 | /* Word 0 */ |
| 109 | unsigned p : 1; |
124 | unsigned p : 1; |
| Line 117... | Line 132... | ||
| 117 | 132 | ||
| 118 | /* Word 2 */ |
133 | /* Word 2 */ |
| 119 | union vhpt_tag tag; |
134 | union vhpt_tag tag; |
| 120 | 135 | ||
| 121 | /* Word 3 */ |
136 | /* Word 3 */ |
| 122 | unsigned long long next : 64; /**< Collision chain next pointer. */ |
137 | pte_t *next; /**< Collision chain next pointer. */ |
| 123 | 138 | ||
| 124 | } __attribute__ ((packed)); |
139 | } __attribute__ ((packed)); |
| 125 | 140 | ||
| 126 | typedef union vhpt_entry { |
141 | typedef union vhpt_entry { |
| 127 | struct vhpt_entry_present present; |
142 | struct vhpt_entry_present present; |
| 128 | struct vhpt_entry_not_present not_present; |
143 | struct vhpt_entry_not_present not_present; |
| - | 144 | __u64 word[4]; |
|
| 129 | } vhpt_entry; |
145 | } vhpt_entry; |
| 130 | 146 | ||
| 131 | struct region_register_map { |
147 | struct region_register_map { |
| 132 | unsigned ve : 1; |
148 | unsigned ve : 1; |
| 133 | unsigned : 1; |
149 | unsigned : 1; |
| Line 241... | Line 257... | ||
| 241 | __asm__ volatile ("mov cr.pta = %0\n" : : "r" (v)); |
257 | __asm__ volatile ("mov cr.pta = %0\n" : : "r" (v)); |
| 242 | } |
258 | } |
| 243 | 259 | ||
| 244 | extern void page_arch_init(void); |
260 | extern void page_arch_init(void); |
| 245 | extern pte_t *vhpt_hash(__address page, asid_t asid); |
261 | extern pte_t *vhpt_hash(__address page, asid_t asid); |
| - | 262 | extern bool vhpt_compare(__address page, asid_t asid, pte_t *t); |
|
| - | 263 | extern void vhpt_set_record(pte_t *t, __address page, asid_t asid, __address frame, int flags); |
|
| 246 | 264 | ||
| 247 | #endif |
265 | #endif |