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gic_v2m.hh
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37  * Authors: Matt Evans
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39 
46 #ifndef __DEV_ARM_GIC_V2M_H__
47 #define __DEV_ARM_GIC_V2M_H__
48 
49 #include "base/bitunion.hh"
50 #include "cpu/intr_control.hh"
51 #include "dev/arm/base_gic.hh"
52 #include "dev/io_device.hh"
53 #include "dev/platform.hh"
54 #include "params/Gicv2m.hh"
55 #include "params/Gicv2mFrame.hh"
56 
62 class Gicv2mFrame : public SimObject
63 {
64  public:
65  const Addr addr;
66  const unsigned int spi_base;
67  const unsigned int spi_len;
68 
69  typedef Gicv2mFrameParams Params;
70  Gicv2mFrame(const Params *p) :
72  {}
73 };
74 
75 class Gicv2m : public PioDevice
76 {
77  private:
78  static const int FRAME_SIZE = 0x10000;
79 
80  static const int MSI_TYPER = 0x0008;
81  static const int MSI_SETSPI_NSR = 0x0040;
82  static const int PER_ID4 = 0x0fd0;
83 
85  const Tick pioDelay;
86 
89 
92 
94  unsigned int log2framenum;
95 
96  public:
97  typedef Gicv2mParams Params;
98  Gicv2m(const Params *p);
99 
104  virtual AddrRangeList getAddrRanges() const;
105 
108  virtual Tick read(PacketPtr pkt);
109 
112  virtual Tick write(PacketPtr pkt);
115  private:
118  int frameFromAddr(Addr a) const;
119 };
120 
121 #endif //__DEV_ARM_GIC_V2M_H__
int frameFromAddr(Addr a) const
Determine which frame a PIO access lands in.
Definition: gic_v2m.cc:163
BaseGic * gic
Gic to which we fire interrupts.
Definition: gic_v2m.hh:91
Bitfield< 8 > a
Definition: miscregs.hh:1377
static const int PER_ID4
Definition: gic_v2m.hh:82
static const int MSI_SETSPI_NSR
Definition: gic_v2m.hh:81
static const int FRAME_SIZE
Definition: gic_v2m.hh:78
Gicv2mParams Params
Definition: gic_v2m.hh:97
Ultimately this class should be embedded in the Gicv2m class, but this confuses Python as 'Gicv2m::Fr...
Definition: gic_v2m.hh:62
Gicv2m(const Params *p)
Definition: gic_v2m.cc:81
uint64_t Tick
Tick count type.
Definition: types.hh:63
std::vector< Gicv2mFrame * > frames
A set of configured hardware frames.
Definition: gic_v2m.hh:88
virtual Tick read(PacketPtr pkt)
A PIO read to the device.
Definition: gic_v2m.cc:107
This device is the base class which all devices senstive to an address range inherit from...
Definition: io_device.hh:84
const unsigned int spi_base
Definition: gic_v2m.hh:66
uint64_t Addr
Address type This will probably be moved somewhere else in the near future.
Definition: types.hh:142
virtual Tick write(PacketPtr pkt)
A PIO read to the device.
Definition: gic_v2m.cc:137
A Packet is used to encapsulate a transfer between two objects in the memory system (e...
Definition: packet.hh:245
Gicv2mFrameParams Params
Definition: gic_v2m.hh:69
Generic interface for platforms.
const unsigned int spi_len
Definition: gic_v2m.hh:67
Base class for ARM GIC implementations.
virtual AddrRangeList getAddrRanges() const
Return the address ranges used by the Gicv2m This is the set of frame addresses.
Definition: gic_v2m.cc:97
const Addr addr
Definition: gic_v2m.hh:65
Gicv2mFrame(const Params *p)
Definition: gic_v2m.hh:70
const Tick pioDelay
Latency for an MMIO operation.
Definition: gic_v2m.hh:85
Bitfield< 0 > p
static const int MSI_TYPER
Definition: gic_v2m.hh:80
Abstract superclass for simulation objects.
Definition: sim_object.hh:94
unsigned int log2framenum
Count of number of configured frames, as log2(frames)
Definition: gic_v2m.hh:94

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