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30 #include "cpu/testers/directedtest/RubyDirectedTester.hh"
31 #include "cpu/testers/directedtest/DirectedGenerator.hh"
32 #include "cpu/testers/directedtest/InvalidateGenerator.hh"
34 InvalidateGenerator::InvalidateGenerator(const Params
*p
)
35 : DirectedGenerator(p
)
38 // First, issue loads to bring the block into S state
40 m_status
= InvalidateGeneratorStatus_Load_Waiting
;
41 m_active_read_node
= 0;
42 m_active_inv_node
= 0;
44 m_addr_increment_size
= p
->addr_increment_size
;
47 InvalidateGenerator::~InvalidateGenerator()
52 InvalidateGenerator::initiate()
54 RubyDirectedTester::CpuPort
* port
;
59 // For simplicity, requests are assumed to be 1 byte-sized
60 Request
*req
= new Request(m_address
, 1, flags
);
63 // Based on the current state, issue a load or a store
65 if (m_status
== InvalidateGeneratorStatus_Load_Waiting
) {
66 DPRINTF(DirectedTest
, "initiating read\n");
67 cmd
= MemCmd::ReadReq
;
68 port
= safe_cast
<RubyDirectedTester::CpuPort
*>(m_directed_tester
->
69 getCpuPort(m_active_read_node
));
70 pkt
= new Packet(req
, cmd
, m_active_read_node
);
71 } else if (m_status
== InvalidateGeneratorStatus_Inv_Waiting
) {
72 DPRINTF(DirectedTest
, "initiating invalidating write\n");
73 cmd
= MemCmd::WriteReq
;
74 port
= safe_cast
<RubyDirectedTester::CpuPort
*>(m_directed_tester
->
75 getCpuPort(m_active_inv_node
));
76 pkt
= new Packet(req
, cmd
, m_active_inv_node
);
78 panic("initiate was unexpectedly called\n");
80 uint8_t* dummyData
= new uint8_t;
82 pkt
->dataDynamic(dummyData
);
84 if (port
->sendTiming(pkt
)) {
85 DPRINTF(DirectedTest
, "initiating request - successful\n");
86 if (m_status
== InvalidateGeneratorStatus_Load_Waiting
) {
87 m_status
= InvalidateGeneratorStatus_Load_Pending
;
89 m_status
= InvalidateGeneratorStatus_Inv_Pending
;
93 // If the packet did not issue, must delete
94 // Note: No need to delete the data, the packet destructor
99 DPRINTF(DirectedTest
, "failed to issue request - sequencer not ready\n");
105 InvalidateGenerator::performCallback(uint proc
, Addr address
)
107 assert(m_address
== address
);
109 if (m_status
== InvalidateGeneratorStatus_Load_Pending
) {
110 assert(m_active_read_node
== proc
);
111 m_active_read_node
++;
113 // Once all cpus have the block in S state, issue the invalidate
115 if (m_active_read_node
== m_num_cpus
) {
116 m_status
= InvalidateGeneratorStatus_Inv_Waiting
;
117 m_active_read_node
= 0;
119 m_status
= InvalidateGeneratorStatus_Load_Waiting
;
121 } else if (m_status
== InvalidateGeneratorStatus_Inv_Pending
) {
122 assert(m_active_inv_node
== proc
);
124 if (m_active_inv_node
== m_num_cpus
) {
125 m_address
+= m_addr_increment_size
;
126 m_active_inv_node
= 0;
129 // Invalidate completed, send that info to the tester and restart
132 m_directed_tester
->incrementCycleCompletions();
133 m_status
= InvalidateGeneratorStatus_Load_Waiting
;
138 InvalidateGenerator
*
139 InvalidateGeneratorParams::create()
141 return new InvalidateGenerator(this);