gem5  v21.1.0.2
amba_device.cc
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40 
41 #include "dev/arm/amba_device.hh"
42 
43 #include "base/trace.hh"
44 #include "debug/AMBA.hh"
45 #include "dev/arm/amba_fake.hh"
46 #include "mem/packet.hh"
47 #include "mem/packet_access.hh"
48 
49 namespace gem5
50 {
51 
52 const uint64_t AmbaVendor = 0xb105f00d00000000ULL;
53 
55  : BasicPioDevice(p, pio_size), ambaId(AmbaVendor | p.amba_id)
56 {
57 }
58 
60  : AmbaPioDevice(p, pio_size),
61  interrupt(p.interrupt->get()), intDelay(p.int_delay)
62 {
63 }
64 
65 
66 
68  : DmaDevice(p), ambaId(AmbaVendor | p.amba_id),
69  pioAddr(p.pio_addr), pioSize(pio_size),
70  pioDelay(p.pio_latency), interrupt(p.interrupt->get())
71 {
72 }
73 
74 bool
75 AmbaDevice::readId(PacketPtr pkt, uint64_t amba_id, Addr pio_addr)
76 {
77  Addr daddr = pkt->getAddr() - pio_addr;
78  if (daddr < AMBA_PER_ID0 || daddr > AMBA_CEL_ID3)
79  return false;
80 
81  int byte = (daddr - AMBA_PER_ID0) << 1;
82  // Too noisy right now
83  DPRINTF(AMBA, "Returning %#x for offset %#x(%d)\n",
84  (amba_id >> byte) & 0xFF,
85  pkt->getAddr() - pio_addr, byte);
86 
87  pkt->setUintX((amba_id >> byte) & 0xFF, ByteOrder::little);
88  return true;
89 }
90 
91 } // namespace gem5
amba_device.hh
gem5::AmbaPioDevice::Params
AmbaPioDeviceParams Params
Definition: amba_device.hh:84
gem5::AmbaPioDevice
Definition: amba_device.hh:78
packet.hh
gem5::AmbaDmaDevice::AmbaDmaDevice
AmbaDmaDevice(const Params &p, Addr pio_size=0)
Definition: amba_device.cc:67
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::AmbaDevice::AMBA_CEL_ID3
static const int AMBA_CEL_ID3
Definition: amba_device.hh:72
gem5::MipsISA::p
Bitfield< 0 > p
Definition: pra_constants.hh:326
gem5::AmbaVendor
const uint64_t AmbaVendor
Definition: amba_device.cc:52
gem5::DmaDevice
Definition: dma_device.hh:203
gem5::AmbaPioDevice::AmbaPioDevice
AmbaPioDevice(const Params &p, Addr pio_size)
Definition: amba_device.cc:54
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::AmbaDevice::AMBA_PER_ID0
static const int AMBA_PER_ID0
Definition: amba_device.hh:65
gem5::AmbaDevice::readId
bool readId(PacketPtr pkt, uint64_t amba_id, Addr pio_addr)
Definition: amba_device.cc:75
trace.hh
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
gem5::BasicPioDevice
Definition: io_device.hh:147
gem5::Packet::setUintX
void setUintX(uint64_t w, ByteOrder endian)
Set the value in the word w after truncating it to the length of the packet and then byteswapping it ...
Definition: packet.cc:351
gem5::AmbaIntDevice::AmbaIntDevice
AmbaIntDevice(const Params &p, Addr pio_size)
Definition: amba_device.cc:59
gem5::AmbaDmaDevice::Params
AmbaDmaDeviceParams Params
Definition: amba_device.hh:109

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