gem5  v21.1.0.2
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 
48 namespace gem5
49 {
50 
52  : AmbaPioDevice(p, 0x1000)
53 {
54 }
55 
56 Tick
58 {
59  assert(pkt->getAddr() >= pioAddr && pkt->getAddr() < pioAddr + pioSize);
60 
61  Addr daddr = pkt->getAddr() - pioAddr;
62 
63  DPRINTF(AMBA, " read register %#x\n", daddr);
64 
65  pkt->setLE<uint32_t>(0);
66  if (!readId(pkt, ambaId, pioAddr) && !params().ignore_access)
67  panic("Tried to read AmbaFake %s at offset %#x that doesn't exist\n",
68  name(), daddr);
69 
70  pkt->makeAtomicResponse();
71  return pioDelay;
72 }
73 
74 Tick
76 {
77 
78  Addr daddr = pkt->getAddr() - pioAddr;
79 
80  if (!params().ignore_access)
81  panic("Tried to write AmbaFake %s at offset %#x that doesn't exist\n",
82  name(), daddr);
83 
84  pkt->makeAtomicResponse();
85  return pioDelay;
86 }
87 
88 } // namespace gem5
gem5::AmbaPioDevice::ambaId
uint64_t ambaId
Definition: amba_device.hh:81
gem5::BasicPioDevice::pioAddr
Addr pioAddr
Address that the device listens to.
Definition: io_device.hh:151
gem5::AmbaFake::read
virtual Tick read(PacketPtr pkt)
Pure virtual function that the device must implement.
Definition: amba_fake.cc:57
gem5::AmbaFake::write
virtual Tick write(PacketPtr pkt)
Pure virtual function that the device must implement.
Definition: amba_fake.cc:75
gem5::Packet::makeAtomicResponse
void makeAtomicResponse()
Definition: packet.hh:1043
gem5::AmbaPioDevice::Params
AmbaPioDeviceParams Params
Definition: amba_device.hh:84
gem5::AmbaPioDevice
Definition: amba_device.hh:78
packet.hh
gem5::Named::name
virtual std::string name() const
Definition: named.hh:47
gem5::SimObject::params
const Params & params() const
Definition: sim_object.hh:176
DPRINTF
#define DPRINTF(x,...)
Definition: trace.hh:186
gem5::Packet
A Packet is used to encapsulate a transfer between two objects in the memory system (e....
Definition: packet.hh:283
gem5::MipsISA::p
Bitfield< 0 > p
Definition: pra_constants.hh:326
gem5::Tick
uint64_t Tick
Tick count type.
Definition: types.hh:58
gem5::BasicPioDevice::pioDelay
Tick pioDelay
Delay that the device experinces on an access.
Definition: io_device.hh:157
gem5::AmbaFake::AmbaFake
AmbaFake(const Params &p)
Definition: amba_fake.cc:51
gem5::Addr
uint64_t Addr
Address type This will probably be moved somewhere else in the near future.
Definition: types.hh:147
packet_access.hh
gem5::BasicPioDevice::pioSize
Addr pioSize
Size that the device's address range.
Definition: io_device.hh:154
gem5::AmbaDevice::readId
bool readId(PacketPtr pkt, uint64_t amba_id, Addr pio_addr)
Definition: amba_device.cc:75
trace.hh
gem5::Packet::setLE
void setLE(T v)
Set the value in the data pointer to v as little endian.
Definition: packet_access.hh:108
amba_fake.hh
gem5::Packet::getAddr
Addr getAddr() const
Definition: packet.hh:781
gem5
Reference material can be found at the JEDEC website: UFS standard http://www.jedec....
Definition: decoder.cc:40
panic
#define panic(...)
This implements a cprintf based panic() function.
Definition: logging.hh:177

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