Changeset c03ee1c in mainline for kernel/arch/ppc32/include/mm/page.h
- Timestamp:
- 2007-06-13T17:49:57Z (17 years ago)
- Branches:
- lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export
- Children:
- de7663f
- Parents:
- 6b781c0
- File:
-
- 1 edited
Legend:
- Unmodified
- Added
- Removed
-
kernel/arch/ppc32/include/mm/page.h
r6b781c0 rc03ee1c 33 33 */ 34 34 35 #ifndef __ppc32_PAGE_H__36 #define __ppc32_PAGE_H__35 #ifndef KERN_ppc32_PAGE_H_ 36 #define KERN_ppc32_PAGE_H_ 37 37 38 38 #include <arch/mm/frame.h> … … 66 66 */ 67 67 68 /* Number of entries in each level. */ 68 69 #define PTL0_ENTRIES_ARCH 1024 69 70 #define PTL1_ENTRIES_ARCH 0 … … 71 72 #define PTL3_ENTRIES_ARCH 1024 72 73 73 #define PTL0_SIZE_ARCH ONE_FRAME 74 #define PTL1_SIZE_ARCH 0 75 #define PTL2_SIZE_ARCH 0 76 #define PTL3_SIZE_ARCH ONE_FRAME 74 /* Page table sizes for each level. */ 75 #define PTL0_SIZE_ARCH ONE_FRAME 76 #define PTL1_SIZE_ARCH 0 77 #define PTL2_SIZE_ARCH 0 78 #define PTL3_SIZE_ARCH ONE_FRAME 77 79 80 /* Macros calculating indices into page tables on each level. */ 78 81 #define PTL0_INDEX_ARCH(vaddr) (((vaddr) >> 22) & 0x3ff) 79 82 #define PTL1_INDEX_ARCH(vaddr) 0 … … 81 84 #define PTL3_INDEX_ARCH(vaddr) (((vaddr) >> 12) & 0x3ff) 82 85 83 #define GET_PTL1_ADDRESS_ARCH(ptl0, i) (((pte_t *) (ptl0))[(i)].pfn << 12) 84 #define GET_PTL2_ADDRESS_ARCH(ptl1, i) (ptl1) 85 #define GET_PTL3_ADDRESS_ARCH(ptl2, i) (ptl2) 86 #define GET_FRAME_ADDRESS_ARCH(ptl3, i) (((pte_t *) (ptl3))[(i)].pfn << 12) 86 /* Get PTE address accessors for each level. */ 87 #define GET_PTL1_ADDRESS_ARCH(ptl0, i) \ 88 (((pte_t *) (ptl0))[(i)].pfn << 12) 89 #define GET_PTL2_ADDRESS_ARCH(ptl1, i) \ 90 (ptl1) 91 #define GET_PTL3_ADDRESS_ARCH(ptl2, i) \ 92 (ptl2) 93 #define GET_FRAME_ADDRESS_ARCH(ptl3, i) \ 94 (((pte_t *) (ptl3))[(i)].pfn << 12) 87 95 96 /* Set PTE address accessors for each level. */ 88 97 #define SET_PTL0_ADDRESS_ARCH(ptl0) 89 #define SET_PTL1_ADDRESS_ARCH(ptl0, i, a) (((pte_t *) (ptl0))[(i)].pfn = (a) >> 12) 98 #define SET_PTL1_ADDRESS_ARCH(ptl0, i, a) \ 99 (((pte_t *) (ptl0))[(i)].pfn = (a) >> 12) 90 100 #define SET_PTL2_ADDRESS_ARCH(ptl1, i, a) 91 101 #define SET_PTL3_ADDRESS_ARCH(ptl2, i, a) 92 #define SET_FRAME_ADDRESS_ARCH(ptl3, i, a) (((pte_t *) (ptl3))[(i)].pfn = (a) >> 12) 102 #define SET_FRAME_ADDRESS_ARCH(ptl3, i, a) \ 103 (((pte_t *) (ptl3))[(i)].pfn = (a) >> 12) 93 104 94 #define GET_PTL1_FLAGS_ARCH(ptl0, i) get_pt_flags((pte_t *) (ptl0), (index_t) (i)) 95 #define GET_PTL2_FLAGS_ARCH(ptl1, i) PAGE_PRESENT 96 #define GET_PTL3_FLAGS_ARCH(ptl2, i) PAGE_PRESENT 97 #define GET_FRAME_FLAGS_ARCH(ptl3, i) get_pt_flags((pte_t *) (ptl3), (index_t) (i)) 105 /* Get PTE flags accessors for each level. */ 106 #define GET_PTL1_FLAGS_ARCH(ptl0, i) \ 107 get_pt_flags((pte_t *) (ptl0), (index_t) (i)) 108 #define GET_PTL2_FLAGS_ARCH(ptl1, i) \ 109 PAGE_PRESENT 110 #define GET_PTL3_FLAGS_ARCH(ptl2, i) \ 111 PAGE_PRESENT 112 #define GET_FRAME_FLAGS_ARCH(ptl3, i) \ 113 get_pt_flags((pte_t *) (ptl3), (index_t) (i)) 98 114 99 #define SET_PTL1_FLAGS_ARCH(ptl0, i, x) set_pt_flags((pte_t *) (ptl0), (index_t) (i), (x)) 115 /* Set PTE flags accessors for each level. */ 116 #define SET_PTL1_FLAGS_ARCH(ptl0, i, x) \ 117 set_pt_flags((pte_t *) (ptl0), (index_t) (i), (x)) 100 118 #define SET_PTL2_FLAGS_ARCH(ptl1, i, x) 101 119 #define SET_PTL3_FLAGS_ARCH(ptl2, i, x) 102 #define SET_FRAME_FLAGS_ARCH(ptl3, i, x) set_pt_flags((pte_t *) (ptl3), (index_t) (i), (x)) 120 #define SET_FRAME_FLAGS_ARCH(ptl3, i, x) \ 121 set_pt_flags((pte_t *) (ptl3), (index_t) (i), (x)) 103 122 123 /* Macros for querying the last-level PTEs. */ 104 124 #define PTE_VALID_ARCH(pte) (*((uint32_t *) (pte)) != 0) 105 125 #define PTE_PRESENT_ARCH(pte) ((pte)->p != 0) … … 117 137 pte_t *p = &pt[i]; 118 138 119 return ( 120 (1 << PAGE_CACHEABLE_SHIFT) | 121 ((!p->p) << PAGE_PRESENT_SHIFT) | 122 (1 << PAGE_USER_SHIFT) | 123 (1 << PAGE_READ_SHIFT) | 124 (1 << PAGE_WRITE_SHIFT) | 125 (1 << PAGE_EXEC_SHIFT) | 126 (p->g << PAGE_GLOBAL_SHIFT) 127 ); 139 return ((1 << PAGE_CACHEABLE_SHIFT) | 140 ((!p->p) << PAGE_PRESENT_SHIFT) | 141 (1 << PAGE_USER_SHIFT) | 142 (1 << PAGE_READ_SHIFT) | 143 (1 << PAGE_WRITE_SHIFT) | 144 (1 << PAGE_EXEC_SHIFT) | 145 (p->g << PAGE_GLOBAL_SHIFT)); 128 146 } 129 147
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