gem5  v20.1.0.0
amba_fake.cc
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40 
41 #include "dev/arm/amba_fake.hh"
42 
43 #include "base/trace.hh"
44 #include "debug/AMBA.hh"
45 #include "mem/packet.hh"
46 #include "mem/packet_access.hh"
47 
49  : AmbaPioDevice(p, 0x1000)
50 {
51 }
52 
53 Tick
55 {
56  assert(pkt->getAddr() >= pioAddr && pkt->getAddr() < pioAddr + pioSize);
57 
58  Addr daddr = pkt->getAddr() - pioAddr;
59 
60  DPRINTF(AMBA, " read register %#x\n", daddr);
61 
62  pkt->setLE<uint32_t>(0);
63  if (!readId(pkt, ambaId, pioAddr) && !params()->ignore_access)
64  panic("Tried to read AmbaFake %s at offset %#x that doesn't exist\n",
65  name(), daddr);
66 
67  pkt->makeAtomicResponse();
68  return pioDelay;
69 }
70 
71 Tick
73 {
74 
75  Addr daddr = pkt->getAddr() - pioAddr;
76 
77  if (!params()->ignore_access)
78  panic("Tried to write AmbaFake %s at offset %#x that doesn't exist\n",
79  name(), daddr);
80 
81  pkt->makeAtomicResponse();
82  return pioDelay;
83 }
84 
85 
86 AmbaFake *
87 AmbaFakeParams::create()
88 {
89  return new AmbaFake(this);
90 }
Packet::makeAtomicResponse
void makeAtomicResponse()
Definition: packet.hh:1016
BasicPioDevice::pioAddr
Addr pioAddr
Address that the device listens to.
Definition: io_device.hh:154
Packet::getAddr
Addr getAddr() const
Definition: packet.hh:754
AmbaPioDevice::ambaId
uint64_t ambaId
Definition: amba_device.hh:79
AmbaFake::read
virtual Tick read(PacketPtr pkt)
Pure virtual function that the device must implement.
Definition: amba_fake.cc:54
Tick
uint64_t Tick
Tick count type.
Definition: types.hh:63
packet.hh
AMBA
Definition: amba.hh:43
AmbaFake::AmbaFake
AmbaFake(const Params *p)
Definition: amba_fake.cc:48
DPRINTF
#define DPRINTF(x,...)
Definition: trace.hh:234
AmbaFake
Definition: amba_fake.hh:55
AmbaDevice::readId
bool readId(PacketPtr pkt, uint64_t amba_id, Addr pio_addr)
Definition: amba_device.cc:72
BasicPioDevice::pioSize
Addr pioSize
Size that the device's address range.
Definition: io_device.hh:157
AmbaPioDevice
Definition: amba_device.hh:76
AmbaFake::params
const Params * params() const
Definition: amba_fake.hh:60
Addr
uint64_t Addr
Address type This will probably be moved somewhere else in the near future.
Definition: types.hh:142
packet_access.hh
SimObject::name
virtual const std::string name() const
Definition: sim_object.hh:133
AmbaFake::write
virtual Tick write(PacketPtr pkt)
Pure virtual function that the device must implement.
Definition: amba_fake.cc:72
AmbaPioDevice::Params
AmbaPioDeviceParams Params
Definition: amba_device.hh:82
Packet
A Packet is used to encapsulate a transfer between two objects in the memory system (e....
Definition: packet.hh:257
BasicPioDevice::pioDelay
Tick pioDelay
Delay that the device experinces on an access.
Definition: io_device.hh:160
Packet::setLE
void setLE(T v)
Set the value in the data pointer to v as little endian.
Definition: packet_access.hh:105
trace.hh
amba_fake.hh
MipsISA::p
Bitfield< 0 > p
Definition: pra_constants.hh:323
panic
#define panic(...)
This implements a cprintf based panic() function.
Definition: logging.hh:171

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