DMASequencer.cc (6876:a658c315512c) | DMASequencer.cc (6888:de8e755aca4f) |
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1 2#include "mem/ruby/system/DMASequencer.hh" 3#include "mem/ruby/buffers/MessageBuffer.hh" 4#include "mem/ruby/slicc_interface/AbstractController.hh" 5 6/* SLICC generated types */ 7#include "mem/protocol/SequencerMsg.hh" 8#include "mem/protocol/SequencerRequestType.hh" 9#include "mem/ruby/system/System.hh" 10 | 1 2#include "mem/ruby/system/DMASequencer.hh" 3#include "mem/ruby/buffers/MessageBuffer.hh" 4#include "mem/ruby/slicc_interface/AbstractController.hh" 5 6/* SLICC generated types */ 7#include "mem/protocol/SequencerMsg.hh" 8#include "mem/protocol/SequencerRequestType.hh" 9#include "mem/ruby/system/System.hh" 10 |
11// 12// Fix me: This code needs comments! 13// 14 |
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11DMASequencer::DMASequencer(const Params *p) 12 : RubyPort(p) 13{ 14} 15 16void DMASequencer::init() 17{ | 15DMASequencer::DMASequencer(const Params *p) 16 : RubyPort(p) 17{ 18} 19 20void DMASequencer::init() 21{ |
22 RubyPort::init(); |
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18 m_is_busy = false; 19 m_data_block_mask = ~ (~0 << RubySystem::getBlockSizeBits()); 20} 21 22int64_t DMASequencer::makeRequest(const RubyRequest & request) 23{ 24 uint64_t paddr = request.paddr; 25 uint8_t* data = request.data; --- 27 unchanged lines hidden (view full) --- 53 active_request.bytes_issued = 0; 54 active_request.id = makeUniqueRequestID(); 55 56 SequencerMsg msg; 57 msg.getPhysicalAddress() = Address(paddr); 58 msg.getLineAddress() = line_address(msg.getPhysicalAddress()); 59 msg.getType() = write ? SequencerRequestType_ST : SequencerRequestType_LD; 60 int offset = paddr & m_data_block_mask; | 23 m_is_busy = false; 24 m_data_block_mask = ~ (~0 << RubySystem::getBlockSizeBits()); 25} 26 27int64_t DMASequencer::makeRequest(const RubyRequest & request) 28{ 29 uint64_t paddr = request.paddr; 30 uint8_t* data = request.data; --- 27 unchanged lines hidden (view full) --- 58 active_request.bytes_issued = 0; 59 active_request.id = makeUniqueRequestID(); 60 61 SequencerMsg msg; 62 msg.getPhysicalAddress() = Address(paddr); 63 msg.getLineAddress() = line_address(msg.getPhysicalAddress()); 64 msg.getType() = write ? SequencerRequestType_ST : SequencerRequestType_LD; 65 int offset = paddr & m_data_block_mask; |
66 |
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61 msg.getLen() = (offset + len) <= RubySystem::getBlockSizeBytes() ? 62 len : 63 RubySystem::getBlockSizeBytes() - offset; | 67 msg.getLen() = (offset + len) <= RubySystem::getBlockSizeBytes() ? 68 len : 69 RubySystem::getBlockSizeBytes() - offset; |
64 if (write) | 70 71 if (write) { |
65 msg.getDataBlk().setData(data, offset, msg.getLen()); | 72 msg.getDataBlk().setData(data, offset, msg.getLen()); |
73 } 74 75 assert(m_mandatory_q_ptr != NULL); |
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66 m_mandatory_q_ptr->enqueue(msg); 67 active_request.bytes_issued += msg.getLen(); 68 69 return active_request.id; 70} 71 72void DMASequencer::issueNext() 73{ 74 assert(m_is_busy == true); 75 active_request.bytes_completed = active_request.bytes_issued; 76 if (active_request.len == active_request.bytes_completed) { 77 m_hit_callback(active_request.id); 78 m_is_busy = false; 79 return; 80 } 81 82 SequencerMsg msg; 83 msg.getPhysicalAddress() = Address(active_request.start_paddr + 84 active_request.bytes_completed); | 76 m_mandatory_q_ptr->enqueue(msg); 77 active_request.bytes_issued += msg.getLen(); 78 79 return active_request.id; 80} 81 82void DMASequencer::issueNext() 83{ 84 assert(m_is_busy == true); 85 active_request.bytes_completed = active_request.bytes_issued; 86 if (active_request.len == active_request.bytes_completed) { 87 m_hit_callback(active_request.id); 88 m_is_busy = false; 89 return; 90 } 91 92 SequencerMsg msg; 93 msg.getPhysicalAddress() = Address(active_request.start_paddr + 94 active_request.bytes_completed); |
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85 assert((msg.getPhysicalAddress().getAddress() & m_data_block_mask) == 0); 86 msg.getLineAddress() = line_address(msg.getPhysicalAddress()); | 96 assert((msg.getPhysicalAddress().getAddress() & m_data_block_mask) == 0); 97 msg.getLineAddress() = line_address(msg.getPhysicalAddress()); |
98 |
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87 msg.getType() = (active_request.write ? SequencerRequestType_ST : 88 SequencerRequestType_LD); | 99 msg.getType() = (active_request.write ? SequencerRequestType_ST : 100 SequencerRequestType_LD); |
101 |
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89 msg.getLen() = (active_request.len - 90 active_request.bytes_completed < RubySystem::getBlockSizeBytes() ? 91 active_request.len - active_request.bytes_completed : 92 RubySystem::getBlockSizeBytes()); | 102 msg.getLen() = (active_request.len - 103 active_request.bytes_completed < RubySystem::getBlockSizeBytes() ? 104 active_request.len - active_request.bytes_completed : 105 RubySystem::getBlockSizeBytes()); |
106 |
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93 if (active_request.write) { 94 msg.getDataBlk().setData(&active_request.data[active_request.bytes_completed], 95 0, msg.getLen()); 96 msg.getType() = SequencerRequestType_ST; 97 } else { 98 msg.getType() = SequencerRequestType_LD; 99 } | 107 if (active_request.write) { 108 msg.getDataBlk().setData(&active_request.data[active_request.bytes_completed], 109 0, msg.getLen()); 110 msg.getType() = SequencerRequestType_ST; 111 } else { 112 msg.getType() = SequencerRequestType_LD; 113 } |
114 115 assert(m_mandatory_q_ptr != NULL); |
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100 m_mandatory_q_ptr->enqueue(msg); 101 active_request.bytes_issued += msg.getLen(); 102} 103 104void DMASequencer::dataCallback(const DataBlock & dblk) 105{ 106 assert(m_is_busy == true); 107 int len = active_request.bytes_issued - active_request.bytes_completed; --- 25 unchanged lines hidden --- | 116 m_mandatory_q_ptr->enqueue(msg); 117 active_request.bytes_issued += msg.getLen(); 118} 119 120void DMASequencer::dataCallback(const DataBlock & dblk) 121{ 122 assert(m_is_busy == true); 123 int len = active_request.bytes_issued - active_request.bytes_completed; --- 25 unchanged lines hidden --- |