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00035 #ifndef __ppc64_PAGE_H__
00036 #define __ppc64_PAGE_H__
00037
00038 #include <arch/mm/frame.h>
00039
00040 #define PAGE_WIDTH FRAME_WIDTH
00041 #define PAGE_SIZE FRAME_SIZE
00042
00043 #ifdef KERNEL
00044
00045 #ifndef __ASM__
00046 # define KA2PA(x) (((__address) (x)) - 0x80000000)
00047 # define PA2KA(x) (((__address) (x)) + 0x80000000)
00048 #else
00049 # define KA2PA(x) ((x) - 0x80000000)
00050 # define PA2KA(x) ((x) + 0x80000000)
00051 #endif
00052
00053
00054
00055
00056
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00060
00061
00062
00063
00064
00065
00066 #define PTL0_ENTRIES_ARCH 1024
00067 #define PTL1_ENTRIES_ARCH 0
00068 #define PTL2_ENTRIES_ARCH 0
00069 #define PTL3_ENTRIES_ARCH 1024
00070
00071 #define PTL0_INDEX_ARCH(vaddr) (((vaddr) >> 22) & 0x3ff)
00072 #define PTL1_INDEX_ARCH(vaddr) 0
00073 #define PTL2_INDEX_ARCH(vaddr) 0
00074 #define PTL3_INDEX_ARCH(vaddr) (((vaddr) >> 12) & 0x3ff)
00075
00076 #define GET_PTL1_ADDRESS_ARCH(ptl0, i) (((pte_t *) (ptl0))[(i)].pfn << 12)
00077 #define GET_PTL2_ADDRESS_ARCH(ptl1, i) (ptl1)
00078 #define GET_PTL3_ADDRESS_ARCH(ptl2, i) (ptl2)
00079 #define GET_FRAME_ADDRESS_ARCH(ptl3, i) (((pte_t *) (ptl3))[(i)].pfn << 12)
00080
00081 #define SET_PTL0_ADDRESS_ARCH(ptl0)
00082 #define SET_PTL1_ADDRESS_ARCH(ptl0, i, a) (((pte_t *) (ptl0))[(i)].pfn = (a) >> 12)
00083 #define SET_PTL2_ADDRESS_ARCH(ptl1, i, a)
00084 #define SET_PTL3_ADDRESS_ARCH(ptl2, i, a)
00085 #define SET_FRAME_ADDRESS_ARCH(ptl3, i, a) (((pte_t *) (ptl3))[(i)].pfn = (a) >> 12)
00086
00087 #define GET_PTL1_FLAGS_ARCH(ptl0, i) get_pt_flags((pte_t *) (ptl0), (index_t) (i))
00088 #define GET_PTL2_FLAGS_ARCH(ptl1, i) PAGE_PRESENT
00089 #define GET_PTL3_FLAGS_ARCH(ptl2, i) PAGE_PRESENT
00090 #define GET_FRAME_FLAGS_ARCH(ptl3, i) get_pt_flags((pte_t *) (ptl3), (index_t) (i))
00091
00092 #define SET_PTL1_FLAGS_ARCH(ptl0, i, x) set_pt_flags((pte_t *) (ptl0), (index_t) (i), (x))
00093 #define SET_PTL2_FLAGS_ARCH(ptl1, i, x)
00094 #define SET_PTL3_FLAGS_ARCH(ptl2, i, x)
00095 #define SET_FRAME_FLAGS_ARCH(ptl3, i, x) set_pt_flags((pte_t *) (ptl3), (index_t) (i), (x))
00096
00097 #define PTE_VALID_ARCH(pte) (*((__u32 *) (pte)) != 0)
00098 #define PTE_PRESENT_ARCH(pte) ((pte)->p != 0)
00099 #define PTE_GET_FRAME_ARCH(pte) ((__address) ((pte)->pfn << 12))
00100 #define PTE_WRITABLE_ARCH(pte) 1
00101 #define PTE_EXECUTABLE_ARCH(pte) 1
00102
00103 #ifndef __ASM__
00104
00105 #include <mm/page.h>
00106 #include <arch/mm/frame.h>
00107 #include <arch/types.h>
00108
00109 static inline int get_pt_flags(pte_t *pt, index_t i)
00110 {
00111 pte_t *p = &pt[i];
00112
00113 return (
00114 (1 << PAGE_CACHEABLE_SHIFT) |
00115 ((!p->p) << PAGE_PRESENT_SHIFT) |
00116 (1 << PAGE_USER_SHIFT) |
00117 (1 << PAGE_READ_SHIFT) |
00118 (1 << PAGE_WRITE_SHIFT) |
00119 (1 << PAGE_EXEC_SHIFT) |
00120 (p->g << PAGE_GLOBAL_SHIFT)
00121 );
00122 }
00123
00124 static inline void set_pt_flags(pte_t *pt, index_t i, int flags)
00125 {
00126 pte_t *p = &pt[i];
00127
00128 p->p = !(flags & PAGE_NOT_PRESENT);
00129 p->g = (flags & PAGE_GLOBAL) != 0;
00130 p->valid = 1;
00131 }
00132
00133 extern void page_arch_init(void);
00134
00135 #define PHT_BITS 16
00136 #define PHT_ORDER 4
00137
00138 typedef struct {
00139 unsigned v : 1;
00140 unsigned vsid : 24;
00141 unsigned h : 1;
00142 unsigned api : 6;
00143 unsigned rpn : 20;
00144 unsigned reserved0 : 3;
00145 unsigned r : 1;
00146 unsigned c : 1;
00147 unsigned wimg : 4;
00148 unsigned reserved1 : 1;
00149 unsigned pp : 2;
00150 } phte_t;
00151
00152 extern void pht_refill(bool data, istate_t *istate);
00153 extern void pht_init(void);
00154
00155 #endif
00156
00157 #endif
00158
00159 #endif
00160