Subversion Repositories HelenOS-historic

Rev

Rev 194 | Rev 251 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 194 Rev 226
Line 36... Line 36...
36 
#endif
 36 
#endif
37 
 
 37 
 
38 
#define PAGE_SIZE   FRAME_SIZE
 38 
#define PAGE_SIZE   FRAME_SIZE
39 
 
 39 
 
40 
#ifndef __ASM__
 40 
#ifndef __ASM__
41 
# define KA2PA(x)   (((__address) (x)) + 0x80000000)
 41 
# define KA2PA(x)      (((__address) (x)) + 0x80000000)
42 
# define PA2KA(x)   (((__address) (x)) - 0x80000000)
 42 
# define PA2KA(x)      (((__address) (x)) - 0x80000000)
43 
#else
 43 
#else
44 
# define KA2PA(x)   ((x) + 0x80000000)
 44 
# define KA2PA(x)      ((x) + 0x80000000)
45 
# define PA2KA(x)   ((x)) - 0x80000000)
 45 
//# define PA2KA(x)      ((x)) - 0x80000000)
46 
#endif
 46 
#endif
47 
 
 47 
 
48 
#define PTL0_INDEX_ARCH(vaddr)      0
 48 
#define PTL0_INDEX_ARCH(vaddr)  (((vaddr)>>39)&0x1ff)
49 
#define PTL1_INDEX_ARCH(vaddr)      0
 49 
#define PTL1_INDEX_ARCH(vaddr)  (((vaddr)>>30)&0x1ff)
50 
#define PTL2_INDEX_ARCH(vaddr)      0
 50 
#define PTL2_INDEX_ARCH(vaddr)  (((vaddr)>>21)&0x1ff)
51 
#define PTL3_INDEX_ARCH(vaddr)      0
 51 
#define PTL3_INDEX_ARCH(vaddr)  (((vaddr)>>12)&0x1ff)
52 
 
 52 
 
53 
#define GET_PTL0_ADDRESS_ARCH()     0
 53 
#define GET_PTL0_ADDRESS_ARCH()         ((pte_t *) read_cr3())
54 
#define SET_PTL0_ADDRESS_ARCH(ptl0)
 - 
 
55 
 
 - 
 
56 
#define GET_PTL1_ADDRESS_ARCH(ptl0, i)      ((pte_t *) 0)
 54 
#define GET_PTL1_ADDRESS_ARCH(ptl0, i)      ((pte_t *) ((((__u64) ((pte_t *)(ptl0))[(i)].addr_12_31)<<12) | (((__u64) ((pte_t *)(ptl0))[(i)].addr_32_51)<<32 )))
57 
#define GET_PTL2_ADDRESS_ARCH(ptl1, i)      ((pte_t *) 0)
 55 
#define GET_PTL2_ADDRESS_ARCH(ptl1, i)      ((pte_t *) ((((__u64) ((pte_t *)(ptl1))[(i)].addr_12_31)<<12) | (((__u64) ((pte_t *)(ptl1))[(i)].addr_32_51)<<32 )))
58 
#define GET_PTL3_ADDRESS_ARCH(ptl2, i)      ((pte_t *) 0)
 56 
#define GET_PTL3_ADDRESS_ARCH(ptl2, i)      ((pte_t *) ((((__u64) ((pte_t *)(ptl2))[(i)].addr_12_31)<<12) | (((__u64) ((pte_t *)(ptl2))[(i)].addr_32_51)<<32 )))
59 
#define GET_FRAME_ADDRESS_ARCH(ptl3, i)     ((pte_t *) 0)
 57 
#define GET_FRAME_ADDRESS_ARCH(ptl3, i)     ((__address *) ((((__u64) ((pte_t *)(ptl3))[(i)].addr_12_31)<<12) | (((__u64) ((pte_t *)(ptl3))[(i)].addr_32_51)<<32 )))
60 
 
 58 
 
61 
#define SET_PTL1_ADDRESS_ARCH(ptl0, i, a)
 59 
#define SET_PTL0_ADDRESS_ARCH(ptl0)     (write_cr3((__address) (ptl0)))
62 
#define SET_PTL2_ADDRESS_ARCH(ptl1, i, a)
 60 
#define SET_PTL1_ADDRESS_ARCH(ptl0, i, a)   set_pt_addr((pte_t *)(ptl0), (index_t)(i), a)
- 
 
 61 
#define SET_PTL2_ADDRESS_ARCH(ptl1, i, a)       set_pt_addr((pte_t *)(ptl1), (index_t)(i), a)
63 
#define SET_PTL3_ADDRESS_ARCH(ptl2, i, a)
 62 
#define SET_PTL3_ADDRESS_ARCH(ptl2, i, a)       set_pt_addr((pte_t *)(ptl2), (index_t)(i), a)
64 
#define SET_FRAME_ADDRESS_ARCH(ptl3, i, a)
 63 
#define SET_FRAME_ADDRESS_ARCH(ptl3, i, a)  set_pt_addr((pte_t *)(ptl3), (index_t)(i), a)
65 
 
 64 
 
66 
#define GET_PTL1_FLAGS_ARCH(ptl0, i)        0
 65 
#define GET_PTL1_FLAGS_ARCH(ptl0, i)        get_pt_flags((pte_t *)(ptl0), (index_t)(i))
67 
#define GET_PTL2_FLAGS_ARCH(ptl1, i)        0
 66 
#define GET_PTL2_FLAGS_ARCH(ptl1, i)        get_pt_flags((pte_t *)(ptl1), (index_t)(i))
68 
#define GET_PTL3_FLAGS_ARCH(ptl2, i)        0
 67 
#define GET_PTL3_FLAGS_ARCH(ptl2, i)        get_pt_flags((pte_t *)(ptl2), (index_t)(i))
69 
#define GET_FRAME_FLAGS_ARCH(ptl3, i)       0
 68 
#define GET_FRAME_FLAGS_ARCH(ptl3, i)       get_pt_flags((pte_t *)(ptl3), (index_t)(i))
70 
 
 69 
 
71 
#define SET_PTL1_FLAGS_ARCH(ptl0, i, x)
 70 
#define SET_PTL1_FLAGS_ARCH(ptl0, i, x)     set_pt_flags((pte_t *)(ptl0), (index_t)(i), (x))
72 
#define SET_PTL2_FLAGS_ARCH(ptl1, i, x)
 71 
#define SET_PTL2_FLAGS_ARCH(ptl1, i, x)         set_pt_flags((pte_t *)(ptl1), (index_t)(i), (x))
73 
#define SET_PTL3_FLAGS_ARCH(ptl2, i, x)
 72 
#define SET_PTL3_FLAGS_ARCH(ptl2, i, x)         set_pt_flags((pte_t *)(ptl2), (index_t)(i), (x))
74 
#define SET_FRAME_FLAGS_ARCH(ptl3, i, x)
 73 
#define SET_FRAME_FLAGS_ARCH(ptl3, i, x)    set_pt_flags((pte_t *)(ptl3), (index_t)(i), (x))
75 
 
 74 
 
76 
#ifndef __ASM__
 75 
#ifndef __ASM__
- 
 
 76 
 
- 
 
 77 
typedef struct page_specifier pte_t;
- 
 
 78 
 
- 
 
 79 
struct page_specifier {
- 
 
 80 
    unsigned present : 1;
- 
 
 81 
    unsigned writeable : 1;
- 
 
 82 
    unsigned uaccessible : 1;
- 
 
 83 
    unsigned page_write_through : 1;
- 
 
 84 
    unsigned page_cache_disable : 1;
- 
 
 85 
    unsigned accessed : 1;
- 
 
 86 
    unsigned dirty : 1;
- 
 
 87 
    unsigned unused: 1;
- 
 
 88 
    unsigned global : 1;
- 
 
 89 
    unsigned avl : 3;
- 
 
 90 
    unsigned addr_12_31 : 30;
- 
 
 91 
    unsigned addr_32_51 : 21;
- 
 
 92 
    unsigned no_execute : 1;
- 
 
 93 
} __attribute__ ((packed));
- 
 
 94 
 
- 
 
 95 
static inline int get_pt_flags(pte_t *pt, index_t i)
- 
 
 96 
{
- 
 
 97 
    pte_t *p = &pt[i];
- 
 
 98 
   
- 
 
 99 
    return (
- 
 
 100 
        (!p->page_cache_disable)<<PAGE_CACHEABLE_SHIFT |
- 
 
 101 
        (!p->present)<<PAGE_PRESENT_SHIFT |
- 
 
 102 
        p->uaccessible<<PAGE_USER_SHIFT |
- 
 
 103 
        1<<PAGE_READ_SHIFT |
- 
 
 104 
        p->writeable<<PAGE_WRITE_SHIFT |
- 
 
 105 
        (!p->no_execute)<<PAGE_EXEC_SHIFT
- 
 
 106 
    );
- 
 
 107 
}
- 
 
 108 
 
- 
 
 109 
static inline void set_pt_addr(pte_t *pt, index_t i, __address a)
- 
 
 110 
{
- 
 
 111 
    pte_t *p = &pt[i];
- 
 
 112 
 
- 
 
 113 
    p->addr_12_31 = (a >> 12) & 0xfffff;
- 
 
 114 
    p->addr_32_51 = a >> 32;
- 
 
 115 
}
- 
 
 116 
 
- 
 
 117 
static inline void set_pt_flags(pte_t *pt, index_t i, int flags)
- 
 
 118 
{
- 
 
 119 
    pte_t *p = &pt[i];
- 
 
 120 
   
- 
 
 121 
    p->page_cache_disable = !(flags & PAGE_CACHEABLE);
- 
 
 122 
    p->present = !(flags & PAGE_NOT_PRESENT);
- 
 
 123 
    p->uaccessible = (flags & PAGE_USER) != 0;
- 
 
 124 
    p->writeable = (flags & PAGE_WRITE) != 0;
- 
 
 125 
    p->no_execute = (flags & PAGE_EXEC) == 0;
- 
 
 126 
}
- 
 
 127 
 
77 
extern void page_arch_init(void);
 128 
extern void page_arch_init(void);
78 
 
 129 
 
79 
typedef __u64 pte_t;
 - 
 
80 
#endif
 130 
#endif
81 
 
 131 
 
82 
#endif
 132 
#endif