[2] | 1 | /////////////////////////////////////////////////////////////////////////// |
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| 2 | // File : soclib_segment_table.h |
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| 3 | // Date : 08/07/2004 |
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| 4 | // authors : François Pécheux & Alain Greiner |
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| 5 | // |
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| 6 | // Copyright : UPMC - LIP6 |
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| 7 | // This program is released under the GNU public license |
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| 8 | // |
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| 9 | // This object is used to describe the memory mapping and address |
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| 10 | // decoding scheme. It supports a two level hierarchical interconnect : |
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| 11 | // All VCI initiators and VCI targets share the same address space. |
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| 12 | // - Several sub-systems can be interconnected thanks to a VCI ADVANCED |
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| 13 | // global interconnect that can be either a micro-network, or a global system bus. |
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| 14 | // - Each sub-system can contain as many targets as the LSB size allows. |
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| 15 | // They are connected by a VCI ADVANCED local interconnect, that can be |
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| 16 | // a local bus, or a VCI to VCI bridge such as the TARGET_DEMUX |
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| 17 | // and INITIATOR_MUX components of the SoCLib library. |
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| 18 | // |
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| 19 | // The VCI ADDRESS is structured as follows (three fields): | MSB | LSB | OFFSET | |
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| 20 | // The MSB bits of the VCI ADDRESS are decoded by the global interconnect |
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| 21 | // to route a VCI CMD/RSP packet to a given sub-system. |
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| 22 | // In each sub-system, the LSB bits of the VCI ADDRESS are decoded by the |
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| 23 | // local interconnect to route the a VCI CMD/RSP packet to the selected target/initiator. |
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| 24 | // |
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| 25 | // If the number of bits of the LSB field is zero, a global "flat" interconnect |
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| 26 | // is used, and both the VCI target index and the VCI initiator index are coded |
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| 27 | // on 8 bits. |
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| 28 | // |
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| 29 | // The segment table is an associative table that is organized as a |
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| 30 | // list of segments. This table must be built in the system top cell. |
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| 31 | // |
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| 32 | // Each segment descriptor contains the following fields: |
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| 33 | // |
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| 34 | // - const char *name : segment name |
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| 35 | // - unsigned int base : base address |
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| 36 | // - unsigned int size : segment size (in bytes) |
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| 37 | // - unsigned int globalindex : VCI subsystem index |
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| 38 | // - unsigned int localindex : VCI target index in the subsystem |
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| 39 | // - bool uncached : uncached when true |
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| 40 | // |
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| 41 | // The constraints on the memory mapping are the following : |
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| 42 | // |
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| 43 | // 1/ The system designer must define the number of bits for the address |
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| 44 | // MSB and LSB fields. Both numbers can be zero. (For example the number |
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| 45 | // of LSB bits will be zero, in case of a "flat" VCI interconnect). |
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| 46 | // |
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| 47 | // 2/ The (MSB | LSB) bits are indexing a "page" in the address space. |
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| 48 | // Several pages can be mapped to the same VCI target. |
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| 49 | // |
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| 50 | // 3/ A segment is allocated to a VCI target, and must be contained in |
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| 51 | // a single page or in several contiguous pages. |
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| 52 | // |
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| 53 | // 4/ Several segments can be mapped to the same VCI target |
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| 54 | // (thanks to the SOCLIB_VCI_MULTIRAM component) |
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| 55 | // |
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| 56 | // 5/ A given page cannot contain two segments that are not |
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| 57 | // mapped to the same VCI target. |
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| 58 | // |
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| 59 | // The segment table is used by most SoCLib components : |
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| 60 | // |
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| 61 | // - The constructors of the VCI interconnect components can use it to build |
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| 62 | // the ROMs implementing the routing tables |
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| 63 | // - The constructors of all VCI targets use it to implement the segmentation |
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| 64 | // violation detection mechanism, and allocate the buffers representing |
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| 65 | // the memory in case of an embedded memory component. |
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| 66 | // - The constructors of several processors (MIPS, SPARC) use it to build |
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| 67 | // the ROM implementing the uncached table. |
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| 68 | /////////////////////////////////////////////////////////////////////////// |
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| 69 | |
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| 70 | #ifndef SEGMENT_TABLE_H |
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| 71 | #define SEGMENT_TABLE_H |
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| 72 | |
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| 73 | #include <list> |
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| 74 | |
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| 75 | using namespace std; |
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| 76 | |
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| 77 | ////////////////////////////////////////////// |
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| 78 | // SEGMENT_TABLE_ENTRY definition |
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| 79 | ////////////////////////////////////////////// |
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| 80 | |
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| 81 | struct SEGMENT_TABLE_ENTRY |
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| 82 | { |
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| 83 | |
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| 84 | private: |
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| 85 | |
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| 86 | const char *name; |
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| 87 | unsigned int base; |
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| 88 | unsigned int size; |
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| 89 | unsigned int globalTarget; |
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| 90 | unsigned int localTarget; |
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| 91 | bool uncached ; |
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| 92 | //-----[ SIM2OS - begin ]----------------------------------------- |
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| 93 | void * addr_alloc; |
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| 94 | //-----[ SIM2OS - end ]----------------------------------------- |
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| 95 | |
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| 96 | public: |
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| 97 | |
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| 98 | // constructor |
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| 99 | |
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| 100 | SEGMENT_TABLE_ENTRY(const char *nm , |
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| 101 | unsigned int ba , |
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| 102 | unsigned int sz , |
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| 103 | unsigned int glt, |
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| 104 | unsigned int lct, |
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| 105 | bool unc |
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| 106 | ) |
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| 107 | { |
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| 108 | name=nm; |
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| 109 | base=ba; |
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| 110 | size=sz; |
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| 111 | globalTarget=glt; |
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| 112 | localTarget=lct; |
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| 113 | uncached=unc; |
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| 114 | //-----[ SIM2OS - begin ]----------------------------------------- |
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| 115 | addr_alloc = (void *) 0; |
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| 116 | //-----[ SIM2OS - end ]----------------------------------------- |
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| 117 | }; // end constructor |
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| 118 | |
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| 119 | // basic methods |
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| 120 | |
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| 121 | void print() |
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| 122 | { |
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| 123 | printf("segment : %s , base = %.8x , size = %.8x , Global target = %d , Local Target = %d , unc = %d, addr_alloc : %.8x\n", |
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| 124 | name, base, size, globalTarget, localTarget, uncached, (unsigned int) addr_alloc); |
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| 125 | }; |
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| 126 | |
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| 127 | const char *getName() |
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| 128 | { |
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| 129 | return name; |
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| 130 | }; |
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| 131 | |
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| 132 | unsigned int getBase() |
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| 133 | { |
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| 134 | return base; |
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| 135 | }; |
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| 136 | |
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| 137 | unsigned int getSize() |
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| 138 | { |
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| 139 | return size; |
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| 140 | }; |
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| 141 | |
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| 142 | unsigned int getGlobalTarget() |
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| 143 | { |
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| 144 | return globalTarget; |
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| 145 | }; |
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| 146 | |
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| 147 | unsigned int getLocalTarget() |
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| 148 | { |
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| 149 | return localTarget; |
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| 150 | }; |
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| 151 | |
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| 152 | bool getUncached() |
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| 153 | { |
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| 154 | return uncached; |
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| 155 | }; |
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| 156 | |
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| 157 | //-----[ SIM2OS - begin ]----------------------------------------- |
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| 158 | void * getAddrAlloc() |
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| 159 | { |
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| 160 | return addr_alloc; |
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| 161 | } |
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| 162 | |
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| 163 | void setAddrAlloc (void * addr) |
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| 164 | { |
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| 165 | addr_alloc = addr; |
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| 166 | } |
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| 167 | //-----[ SIM2OS - end ]----------------------------------------- |
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| 168 | |
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| 169 | };// end struct SEGMENT_TABLE_ENTRY |
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| 170 | |
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| 171 | |
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| 172 | ////////////////////////////////////////////////////////// |
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| 173 | // SegmentTable definition |
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| 174 | ////////////////////////////////////////////////////////// |
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| 175 | |
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| 176 | using namespace std; |
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| 177 | |
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| 178 | struct SOCLIB_SEGMENT_TABLE { |
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| 179 | |
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| 180 | private : |
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| 181 | |
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| 182 | std::list<SEGMENT_TABLE_ENTRY> segList; |
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| 183 | int MSBNumber; |
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| 184 | int LSBNumber; |
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| 185 | unsigned int defaultTargetGlobalIndex; |
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| 186 | unsigned int defaultTargetLocalIndex; |
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| 187 | bool MSBNumberCalled; |
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| 188 | bool defaultTargetCalled; |
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| 189 | bool LSBNumberCalled; |
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| 190 | |
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| 191 | public : |
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| 192 | |
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| 193 | // CONSTRUCTOR |
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| 194 | |
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| 195 | SOCLIB_SEGMENT_TABLE() |
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| 196 | { |
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| 197 | MSBNumberCalled=false; |
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| 198 | LSBNumberCalled=false; |
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| 199 | defaultTargetCalled=false; |
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| 200 | }; // end constructor |
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| 201 | |
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| 202 | // BASIC METHODS |
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| 203 | |
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| 204 | void setMSBNumber (int number) |
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| 205 | { |
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| 206 | if ((number<0)||(number>16)) |
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| 207 | { |
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| 208 | cerr << "ERROR in the Segment Table :" << endl ; |
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| 209 | cerr << "MSB number must be in the [0..16] range !" << endl ; |
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| 210 | //sc_stop(); |
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| 211 | } |
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| 212 | MSBNumberCalled=true; |
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| 213 | MSBNumber=number; |
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| 214 | }; |
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| 215 | |
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| 216 | void setLSBNumber (int number) |
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| 217 | { |
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| 218 | if ((number<0)||(number>16)) |
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| 219 | { |
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| 220 | cerr << "ERROR in the Segment Table :" << endl ; |
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| 221 | cerr << "LSB number must be in the [0..16] range !" << endl ; |
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| 222 | //sc_stop(); |
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| 223 | } |
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| 224 | LSBNumberCalled=true; |
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| 225 | LSBNumber=number; |
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| 226 | }; |
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| 227 | |
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| 228 | int getMSBNumber() |
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| 229 | { |
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| 230 | return MSBNumber; |
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| 231 | }; |
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| 232 | |
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| 233 | int getLSBNumber() |
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| 234 | { |
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| 235 | return LSBNumber; |
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| 236 | }; |
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| 237 | |
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| 238 | void setDefaultTarget (int _defTargetGlobalIndex , int _defTargetLocalIndex) |
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| 239 | { |
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| 240 | defaultTargetCalled=true; |
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| 241 | defaultTargetGlobalIndex=_defTargetGlobalIndex; |
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| 242 | defaultTargetLocalIndex=_defTargetLocalIndex; |
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| 243 | }; |
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| 244 | |
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| 245 | int getdefaultTargetGlobalIndex() |
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| 246 | { |
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| 247 | return defaultTargetGlobalIndex; |
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| 248 | }; |
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| 249 | |
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| 250 | int getdefaultTargetLocalIndex() |
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| 251 | { |
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| 252 | return defaultTargetLocalIndex; |
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| 253 | }; |
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| 254 | |
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| 255 | void addSegment(const char *nm, |
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| 256 | unsigned int ba, |
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| 257 | unsigned int sz, |
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| 258 | unsigned int glt, |
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| 259 | unsigned int lct, |
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| 260 | bool unc) |
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| 261 | { |
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| 262 | SEGMENT_TABLE_ENTRY *seg=new SEGMENT_TABLE_ENTRY(nm,ba,sz,glt,lct,unc); |
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| 263 | segList.push_back(*seg); |
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| 264 | delete seg; |
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| 265 | }; |
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| 266 | |
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| 267 | //-----[ SIM2OS - begin ]----------------------------------------- |
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| 268 | void setAddrAlloc(unsigned int ba , |
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| 269 | void * addr) |
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| 270 | { |
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| 271 | std::list<SEGMENT_TABLE_ENTRY>::iterator segIterator; |
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| 272 | // Scan of all list |
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| 273 | for (segIterator = segList.begin() ; segIterator != segList.end() ; ++segIterator) |
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| 274 | { |
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| 275 | // Find a entry match with number of base |
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| 276 | // NOTE : The memory is shared, also we can't have 2 segment with the same base |
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| 277 | if (ba == (*segIterator).getBase ()) |
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| 278 | { |
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| 279 | (*segIterator).setAddrAlloc(addr); |
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| 280 | } |
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| 281 | } |
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| 282 | }; |
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| 283 | |
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| 284 | void * getAddrAlloc(unsigned int addr) |
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| 285 | { |
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| 286 | std::list<SEGMENT_TABLE_ENTRY>::iterator segIterator; |
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| 287 | |
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| 288 | // Scan of all list |
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| 289 | for (segIterator = segList.begin() ; segIterator != segList.end() ; ++segIterator) |
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| 290 | { |
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| 291 | unsigned int addr_min = (*segIterator).getBase (); |
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| 292 | unsigned int addr_max = addr_min + (*segIterator).getSize (); |
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| 293 | |
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| 294 | if ((addr >= addr_min) && (addr <= addr_max)) |
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| 295 | { |
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| 296 | unsigned int offset = (addr-addr_min); |
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| 297 | return (void*)((unsigned int)(*segIterator).getAddrAlloc() + offset); |
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| 298 | } |
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| 299 | } |
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| 300 | return NULL; |
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| 301 | } |
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| 302 | //-----[ SIM2OS - end ]----------------------------------------- |
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| 303 | |
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| 304 | void print() |
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| 305 | { |
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| 306 | cout << "\n SEGMENT_TABLE\n\n" ; |
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| 307 | std::list<SEGMENT_TABLE_ENTRY>::iterator iter; |
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| 308 | for (iter = segList.begin() ; iter != segList.end() ; ++iter) |
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| 309 | { |
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| 310 | (*iter).print(); |
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| 311 | } |
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| 312 | cout << "\n" ; |
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| 313 | } |
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| 314 | |
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| 315 | void printMSBRoutingTable() |
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| 316 | { |
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| 317 | cout << "\n MSB ROUTING_TABLE\n\n" ; |
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| 318 | int size = 1 << MSBNumber+LSBNumber; |
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| 319 | unsigned int *tab = new unsigned int[size]; |
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| 320 | initRoutingTable(tab); |
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| 321 | for(int index = 0 ; index < size ; index++) { |
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| 322 | if (tab[index]!=0xFFFFFFFF){ |
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| 323 | printf("TAB[%x] = %d\n", index, tab[index]); |
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| 324 | } |
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| 325 | } |
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| 326 | cout << "\n" ; |
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| 327 | }; |
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| 328 | |
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| 329 | void printLSBRoutingTable(int glt) |
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| 330 | { |
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| 331 | printf( "\n LSB_ROUTING_TABLE OF GLOBAL TARGET :%d \n\n", glt ); |
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| 332 | int size = 1 << MSBNumber+LSBNumber; |
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| 333 | unsigned int *tab = new unsigned int[size]; |
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| 334 | initLocalRoutingTable(tab,glt); |
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| 335 | for(int index = 0 ; index < size ; index++) { |
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| 336 | if (tab[index]!=0xFFFFFFFF){ |
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| 337 | printf("TAB[%d] = %d\n", index, tab[index]); |
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| 338 | } |
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| 339 | } |
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| 340 | cout << "\n" ; |
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| 341 | }; |
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| 342 | |
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| 343 | |
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| 344 | |
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| 345 | void initRoutingTable(unsigned int* tab) { |
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| 346 | if (MSBNumberCalled==false) { |
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| 347 | cerr << "ERROR in initMSBRoutingTable:" << endl ; |
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| 348 | cerr << "MSB number has not been defined !" << endl ; |
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| 349 | //sc_stop(); |
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| 350 | } |
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| 351 | if (LSBNumberCalled==false) { |
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| 352 | cout << "WARNING in initMSBRoutingTable:" << endl ; |
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| 353 | cout << "LSB number has not been defined !" << endl ; |
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| 354 | cout << "it is set to 0" << endl ; |
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| 355 | LSBNumberCalled=true; |
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| 356 | LSBNumber=0; |
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| 357 | } |
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| 358 | |
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| 359 | |
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| 360 | if (defaultTargetCalled==false) { |
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| 361 | cerr << "ERROR in initMSBRoutingTable:" << endl ; |
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| 362 | cerr << "Default Target has not been defined!" << endl ; |
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| 363 | //sc_stop(); |
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| 364 | } |
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| 365 | |
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| 366 | int RoutingTableSize = 1 << MSBNumber+LSBNumber; |
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| 367 | int PageSize = 1 << (32 - MSBNumber - LSBNumber); |
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| 368 | |
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| 369 | // The 0xFFFFFFFF value means "not allocated" |
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| 370 | for (int i=0 ; i < RoutingTableSize ; i++) { |
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| 371 | tab[i] = 0xFFFFFFFF; |
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| 372 | } |
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| 373 | // printf ( " tableau rempli de 0xFFFFFFFF \n"); |
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| 374 | |
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| 375 | // loop on the segment list |
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| 376 | std::list<SEGMENT_TABLE_ENTRY>::iterator seg; |
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| 377 | for (seg = segList.begin() ; seg != segList.end() ; ++seg) { |
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| 378 | const char *name = (*seg).getName(); |
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| 379 | unsigned int base = (*seg).getBase(); |
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| 380 | unsigned int size = (*seg).getSize(); |
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| 381 | unsigned int globalTarget = (*seg).getGlobalTarget(); |
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| 382 | |
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| 383 | unsigned int page = base >> (32-MSBNumber - LSBNumber) ; |
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| 384 | |
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| 385 | for (int x = (int) size ; x > 0 ; x = x - PageSize) { |
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| 386 | if(tab[page] != 0xFFFFFFFF) { |
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| 387 | // printf("\n page n° %x can not be added to cluster %x because it is already allocated to %x\n",page,globalTarget,tab[page]); |
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| 388 | cerr << "Error in initMSBRoutingTable:" << endl ; |
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| 389 | cerr << "Segment " << name << " allocated to VCI target " << globalTarget << endl; |
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| 390 | cerr << "overlap another segment... or is in the same page" << endl; |
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| 391 | cerr << "as another segment allocated to another VCI target" << endl; |
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| 392 | //sc_stop(); |
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| 393 | } else { |
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| 394 | tab[page]=globalTarget; |
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| 395 | |
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| 396 | // printf("\n page n° %x allocated to cluster °%x i.e %s \n",page,tab[page],name); |
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| 397 | } |
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| 398 | page = page + 1; |
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| 399 | } // end for x |
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| 400 | } // end for seg |
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| 401 | |
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| 402 | // Default target |
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| 403 | for (int i=0 ; i < RoutingTableSize ; i++) { |
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| 404 | if(tab[i] == 0xFFFFFFFF) tab[i] = defaultTargetGlobalIndex; |
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| 405 | } |
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| 406 | |
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| 407 | }; // end initRoutingTable() |
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| 408 | |
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| 409 | //////////////////////////////////////////////////////////////// |
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| 410 | // initGlobalRoutingTable() |
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| 411 | // This method can be used by any global VCI interconnect. |
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| 412 | // It initializes the routing table that implements |
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| 413 | // the VCI address MSB bits decoding ROM. |
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| 414 | // - The argument is a pointer to the int table that |
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| 415 | // has been allocated by the constructor of the |
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| 416 | // VCI interconnect component. |
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| 417 | // - Each entry contains a VCI target global index. |
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| 418 | // The VCI local Target index is not used here |
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| 419 | //////////////////////////////////////////////////////////////// |
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| 420 | |
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| 421 | |
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| 422 | void initGlobalRoutingTable(unsigned int* tab) { |
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| 423 | if (MSBNumberCalled==false) { |
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| 424 | cerr << "ERROR in initMSBRoutingTable:" << endl ; |
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| 425 | cerr << "MSB number has not been defined !" << endl ; |
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| 426 | //sc_stop(); |
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| 427 | } |
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| 428 | |
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| 429 | if (defaultTargetCalled==false) { |
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| 430 | cerr << "ERROR in initMSBRoutingTable:" << endl ; |
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| 431 | cerr << "Default Target has not been defined!" << endl ; |
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| 432 | //sc_stop(); |
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| 433 | } |
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| 434 | |
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| 435 | int RoutingTableSize = 1 << MSBNumber; |
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| 436 | int PageSize = 1 << (32 - MSBNumber); |
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| 437 | |
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| 438 | // The 0xFFFFFFFF value means "not allocated" |
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| 439 | for (int i=0 ; i < RoutingTableSize ; i++) { |
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| 440 | tab[i] = 0xFFFFFFFF; |
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| 441 | } |
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| 442 | // printf ( " tableau rempli de 0xFFFFFFFF \n"); |
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| 443 | |
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| 444 | // loop on the segment list |
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| 445 | std::list<SEGMENT_TABLE_ENTRY>::iterator seg; |
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| 446 | for (seg = segList.begin() ; seg != segList.end() ; ++seg) { |
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| 447 | const char *name = (*seg).getName(); |
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| 448 | unsigned int base = (*seg).getBase(); |
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| 449 | unsigned int size = (*seg).getSize(); |
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| 450 | unsigned int globalTarget = (*seg).getGlobalTarget(); |
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| 451 | |
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| 452 | unsigned int page = base >> (32-MSBNumber) ; |
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| 453 | |
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| 454 | for (int x = (int) size ; x > 0 ; x = x - PageSize) { |
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| 455 | if(tab[page] != 0xFFFFFFFF) { |
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| 456 | // printf("\n page n° %x can not be added to cluster %x because it is already allocated to %x\n",page,globalTarget,tab[page]); |
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| 457 | cerr << "Error in initGlobalRoutingTable:" << endl ; |
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| 458 | cerr << "Segment " << name << " allocated to VCI target " << globalTarget << endl; |
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| 459 | cerr << "overlap another segment... or is in the same page" << endl; |
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| 460 | cerr << "as another segment allocated to another VCI target" << endl; |
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| 461 | //sc_stop(); |
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| 462 | } else { |
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| 463 | tab[page]=globalTarget; |
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| 464 | |
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| 465 | // printf("\n page n° %x allocated to cluster °%x i.e %s \n",page,tab[page],name); |
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| 466 | } |
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| 467 | page = page + 1; |
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| 468 | } // end for x |
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| 469 | } // end for seg |
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| 470 | |
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| 471 | // Default target |
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| 472 | for (int i=0 ; i < RoutingTableSize ; i++) { |
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| 473 | if(tab[i] == 0xFFFFFFFF) tab[i] = defaultTargetGlobalIndex; |
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| 474 | } |
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| 475 | |
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| 476 | }; // end initGlobalRoutingTable() |
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| 477 | |
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| 478 | |
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| 479 | //////////////////////////////////////////////////////////////// |
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| 480 | // initLocalRoutingTable() |
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| 481 | // This method can be used by the local VCI interconnect. |
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| 482 | // It initializes the routing table that implements |
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| 483 | // the VCI address LSB bits decoding ROM. |
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| 484 | // - The argument is a pointer to the char table that |
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| 485 | // has been allocated by the constructor of the local |
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| 486 | // VCI interconnect component. |
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| 487 | // - Each entry contains a VCI target local index as well as a global index . |
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| 488 | // - This method needs a parameter : the global index of the subsystem , |
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| 489 | // because it only fills the pages corresponding to a segment in this subsystem |
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| 490 | // other pages are adressed to the Default Target |
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| 491 | //////////////////////////////////////////////////////////////// |
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| 492 | |
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| 493 | void initLocalRoutingTable(unsigned int* tab, unsigned int cluster) { |
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| 494 | if (MSBNumberCalled==false) { |
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| 495 | cerr << "ERROR in initLocalRoutingTable:" << endl ; |
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| 496 | cerr << "MSB number has not been defined !" << endl ; |
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| 497 | //sc_stop(); |
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| 498 | } |
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| 499 | |
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| 500 | if (defaultTargetCalled==false) { |
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| 501 | cerr << "ERROR in initLocalRoutingTable:" << endl ; |
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| 502 | cerr << "Default Target has not been defined!" << endl ; |
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| 503 | //sc_stop(); |
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| 504 | } |
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| 505 | |
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| 506 | int RoutingTableSize = 1 << MSBNumber+LSBNumber; |
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| 507 | int PageSize = 1 << (32 - MSBNumber - LSBNumber ); |
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| 508 | |
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| 509 | // The 0xFF value means "not allocated" |
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| 510 | for (int i=0 ; i < RoutingTableSize ; i++) { |
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| 511 | tab[i] = 0xFF; |
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| 512 | } |
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| 513 | // printf ( " Local routing table cluster %x: tableau rempli de 0xFF \n",cluster); |
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| 514 | // loop on the segment list |
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| 515 | std::list<SEGMENT_TABLE_ENTRY>::iterator seg; |
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| 516 | for (seg = segList.begin() ; seg != segList.end() ; ++seg) { |
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| 517 | const char *name = (*seg).getName(); |
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| 518 | unsigned int base = (*seg).getBase(); |
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| 519 | unsigned int size = (*seg).getSize(); |
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| 520 | unsigned int localTarget = (*seg).getLocalTarget(); |
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| 521 | unsigned int globalTarget = (*seg).getGlobalTarget(); |
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| 522 | |
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| 523 | unsigned int page = base >> (32 - MSBNumber - LSBNumber) ; |
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| 524 | |
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| 525 | for (int x = (int) size ; x > 0 ; x = x - PageSize) { |
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| 526 | if(tab[page] != 0xFF) { |
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| 527 | // printf("\n page n° %x ne peut etre adressée à target n°%x car elle est allouée à %x \n",page,localTarget,tab[page]); |
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| 528 | cerr << "Error in initLocalRoutingTable:" << endl ; |
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| 529 | cerr << "Segment " << name << " allocated to VCI target " << localTarget << endl; |
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| 530 | cerr << "overlap another segment... or is in the same page" << endl; |
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| 531 | cerr << "as another segment allocated to another VCI target" << endl; |
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| 532 | //sc_stop(); |
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| 533 | } else { |
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| 534 | if (globalTarget==cluster){ |
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| 535 | tab[page] = localTarget; |
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| 536 | // printf(" page n° %x adressée à target n°%x dans cluster %x i.e %s \n",page,tab[page],cluster,name); |
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| 537 | } |
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| 538 | page = page + 1; |
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| 539 | |
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| 540 | } |
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| 541 | } |
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| 542 | } // end loop segment list |
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| 543 | |
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| 544 | for (int i=0 ; i < RoutingTableSize ; i++) { |
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| 545 | if ((tab[i]==0xFF) && (defaultTargetGlobalIndex==cluster)) |
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| 546 | tab[i]=defaultTargetLocalIndex; |
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| 547 | } |
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| 548 | |
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| 549 | }; // end initLocalRoutingTable() |
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| 550 | |
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| 551 | ////////////////////////////////////////////////////////////// |
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| 552 | // getSegmentList() |
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| 553 | // returns the list of all segments |
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| 554 | // allocated to a given VCI target. |
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| 555 | // This method tests both the local and global VCI target index |
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| 556 | ////////////////////////////////////////////////////////////// |
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| 557 | |
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| 558 | std::list<SEGMENT_TABLE_ENTRY> getSegmentList(unsigned int globalIndex,unsigned int localIndex){ |
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| 559 | std::list<SEGMENT_TABLE_ENTRY> targetlist; |
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| 560 | std::list<SEGMENT_TABLE_ENTRY>::iterator segIterator; |
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| 561 | unsigned int localTarget; |
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| 562 | unsigned int globalTarget; |
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| 563 | |
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| 564 | for (segIterator = segList.begin() ; segIterator != segList.end() ; ++segIterator) { |
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| 565 | localTarget=(*segIterator).getLocalTarget(); |
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| 566 | globalTarget=(*segIterator).getGlobalTarget(); |
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| 567 | if ((localTarget==localIndex)&&(globalTarget==globalIndex)){ |
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| 568 | targetlist.push_back(*segIterator); |
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| 569 | } |
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| 570 | } |
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| 571 | return(targetlist); |
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| 572 | |
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| 573 | }; // end getSegmentList() |
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| 574 | |
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| 575 | //////////////////////////////////////////////////// |
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| 576 | // function getTotalsegmentList |
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| 577 | // used to get the whole segmentlist |
---|
| 578 | /////////////////////////////////////////////////// |
---|
| 579 | |
---|
| 580 | std::list<SEGMENT_TABLE_ENTRY> getTotalSegmentList() |
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| 581 | { |
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| 582 | |
---|
| 583 | return(segList); |
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| 584 | |
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| 585 | }; // end getSegmentList() |
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| 586 | |
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| 587 | //////////////////////////////////////////////////////////////// |
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| 588 | // initUncachedTable() |
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| 589 | // This method can be used by any SoCLib processor. |
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| 590 | // It initializes an "Uncached Table" that implements |
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| 591 | // the address MSB bits decoding ROM. |
---|
| 592 | // - The argument is a pointer to the bool table that |
---|
| 593 | // has been allocated by the constructor of the processor. |
---|
| 594 | // - Each ROM entry contains a boolean that is true when |
---|
| 595 | // the adress Ris to an uncached segment. |
---|
| 596 | ///////////////////////////////////////////////////////////////: |
---|
| 597 | |
---|
| 598 | void initUncachedTable(bool* tab) { |
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| 599 | if ((MSBNumberCalled==false)||(LSBNumberCalled==false)) |
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| 600 | { |
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| 601 | cerr << "ERROR in initUncachedTable:" << endl ; |
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| 602 | cerr << "MSB or LSB number has not been defined !" << endl ; |
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| 603 | //sc_stop(); |
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| 604 | } |
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| 605 | |
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| 606 | int UncachedTableSize = 1 << (MSBNumber+LSBNumber); |
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| 607 | int PageSize = 1 << (32 - (MSBNumber + LSBNumber)); |
---|
| 608 | |
---|
| 609 | for (int i=0 ; i < UncachedTableSize ; i++) |
---|
| 610 | { |
---|
| 611 | tab[i] = true; |
---|
| 612 | } |
---|
| 613 | |
---|
| 614 | std::list<SEGMENT_TABLE_ENTRY>::iterator iter; |
---|
| 615 | |
---|
| 616 | for ( iter = segList.begin() ; |
---|
| 617 | iter != segList.end() ; |
---|
| 618 | ++iter) |
---|
| 619 | { |
---|
| 620 | unsigned int base = (*iter).getBase(); |
---|
| 621 | unsigned int size = (*iter).getSize(); |
---|
| 622 | bool uncached = (*iter).getUncached(); |
---|
| 623 | |
---|
| 624 | unsigned int page_index = base >> (32-((MSBNumber + LSBNumber))) ; |
---|
| 625 | |
---|
| 626 | for (int x = (int) size ; x > 0 ; x = x - PageSize) |
---|
| 627 | { |
---|
| 628 | tab[page_index] = uncached; |
---|
| 629 | page_index = page_index + 1; |
---|
| 630 | } |
---|
| 631 | } // end for segment list |
---|
| 632 | }; // end initUncachedTable() |
---|
| 633 | |
---|
| 634 | }; // end struct SOCLIB_SEGMENT_TABLE |
---|
| 635 | |
---|
| 636 | |
---|
| 637 | #endif |
---|