Changes between Version 2 and Version 3 of Component/Mapping Table/Tables Creation
- Timestamp:
- Jan 25, 2010, 12:42:53 PM (15 years ago)
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Component/Mapping Table/Tables Creation
v2 v3 122 122 We use a cacheability mask of 0x00300000. 123 123 124 || Name || Address || Cacheability value || Shortened value|| Cacheablility ||125 || seg0 || 0x12000000 || 0x00000000 126 || seg1 || 0x12100000 || 0x00100000 127 || seg2 || 0x14000000 || 0x00000000 128 || seg3 || 0x14100000 || 0x00100000 129 || seg4 || 0x14200000 || 0x00200000 124 || Name || Address || Masked value || Address![21:20] || Cacheablility || 125 || seg0 || 0x12000000 || 0x00000000 || 0 || False || 126 || seg1 || 0x12100000 || 0x00100000 || 1 || True || 127 || seg2 || 0x14000000 || 0x00000000 || 0 || False || 128 || seg3 || 0x14100000 || 0x00100000 || 1 || True || 129 || seg4 || 0x14200000 || 0x00200000 || 2 || True || 130 130 131 131 We can deduct the following table: 132 132 133 || Shortened value|| Cacheability ||133 || Address![21:20] || Cacheability || 134 134 || 0 || False || 135 135 || 1 || True || 136 136 || 2 || True || 137 137 || 3 || unknown || 138 139 In components' code, Cacheability Tables directly take an address, select appropriate bits 140 and yield the Cacheability boolean. 138 141 139 142 == Incoherences == … … 147 150 Its entry is 148 151 149 || Name || Address || Cacheability value || Shortened value|| Cacheablility ||150 || seg5 || 0x20280000 || 0x00200000 152 || Name || Address || Masked value || Address![21:20] || Cacheablility || 153 || seg5 || 0x20280000 || 0x00200000 || 2 || False || 151 154 152 155 Now the table becomes:
