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-rw-r--r--src/dev/x86/I82094AA.py1
-rw-r--r--src/dev/x86/SouthBridge.py1
-rw-r--r--src/dev/x86/i82094aa.cc96
-rw-r--r--src/dev/x86/i82094aa.hh15
-rw-r--r--src/dev/x86/i8259.hh6
-rw-r--r--src/dev/x86/intdev.hh68
6 files changed, 151 insertions, 36 deletions
diff --git a/src/dev/x86/I82094AA.py b/src/dev/x86/I82094AA.py
index 731d831f0..b4ad96a9f 100644
--- a/src/dev/x86/I82094AA.py
+++ b/src/dev/x86/I82094AA.py
@@ -36,6 +36,7 @@ class I82094AA(BasicPioDevice):
cxx_class = 'X86ISA::I82094AA'
pio_latency = Param.Latency('1ns', "Programmed IO latency in simticks")
pio_addr = Param.Addr("Device address")
+ int_port = Port("Port for sending and receiving interrupt messages")
def pin(self, line):
return X86IntPin(device=self, line=line)
diff --git a/src/dev/x86/SouthBridge.py b/src/dev/x86/SouthBridge.py
index 15ffe153f..8a9bea01b 100644
--- a/src/dev/x86/SouthBridge.py
+++ b/src/dev/x86/SouthBridge.py
@@ -72,3 +72,4 @@ class SouthBridge(SimObject):
self.pit.pio = bus.port
self.speaker.pio = bus.port
self.io_apic.pio = bus.port
+ self.io_apic.int_port = bus.port
diff --git a/src/dev/x86/i82094aa.cc b/src/dev/x86/i82094aa.cc
index 713f59592..f944e7171 100644
--- a/src/dev/x86/i82094aa.cc
+++ b/src/dev/x86/i82094aa.cc
@@ -28,12 +28,13 @@
* Authors: Gabe Black
*/
+#include "arch/x86/intmessage.hh"
#include "dev/x86/i82094aa.hh"
#include "mem/packet.hh"
#include "mem/packet_access.hh"
#include "sim/system.hh"
-X86ISA::I82094AA::I82094AA(Params *p) : PioDevice(p),
+X86ISA::I82094AA::I82094AA(Params *p) : PioDevice(p), IntDev(this),
latency(p->pio_latency), pioAddr(p->pio_addr)
{
// This assumes there's only one I/O APIC in the system
@@ -140,11 +141,56 @@ X86ISA::I82094AA::signalInterrupt(int line)
DPRINTF(I82094AA, "Entry was masked.\n");
return;
} else {
+ if (DTRACE(I82094AA)) {
+ switch(entry.deliveryMode) {
+ case 0:
+ DPRINTF(I82094AA, "Delivery mode is: Fixed.\n");
+ break;
+ case 1:
+ DPRINTF(I82094AA, "Delivery mode is: Lowest Priority.\n");
+ break;
+ case 2:
+ DPRINTF(I82094AA, "Delivery mode is: SMI.\n");
+ break;
+ case 3:
+ fatal("Tried to use reserved delivery mode "
+ "for IO APIC entry %d.\n", line);
+ break;
+ case 4:
+ DPRINTF(I82094AA, "Delivery mode is: NMI.\n");
+ break;
+ case 5:
+ DPRINTF(I82094AA, "Delivery mode is: INIT.\n");
+ break;
+ case 6:
+ fatal("Tried to use reserved delivery mode "
+ "for IO APIC entry %d.\n", line);
+ break;
+ case 7:
+ DPRINTF(I82094AA, "Delivery mode is: ExtINT.\n");
+ break;
+ }
+ DPRINTF(I82094AA, "Vector is %#x.\n", entry.vector);
+ }
+
+ TriggerIntMessage message;
+ message.destination = entry.dest;
+ message.vector = entry.vector;
+ message.deliveryMode = entry.deliveryMode;
+ message.destMode = entry.destMode;
+
if (entry.destMode == 0) {
DPRINTF(I82094AA,
- "Would send interrupt to APIC ID %d.\n", entry.dest);
+ "Sending interrupt to APIC ID %d.\n", entry.dest);
+ PacketPtr pkt = buildIntRequest(entry.dest, message);
+ if (sys->getMemoryMode() == Enums::timing)
+ intPort->sendMessageTiming(pkt, latency);
+ else if (sys->getMemoryMode() == Enums::atomic)
+ intPort->sendMessageAtomic(pkt);
+ else
+ panic("Unrecognized memory mode.\n");
} else {
- DPRINTF(I82094AA, "Would send interrupts to APIC IDs:"
+ DPRINTF(I82094AA, "Sending interrupts to APIC IDs:"
"%s%s%s%s%s%s%s%s\n",
bits((int)entry.dest, 0) ? " 0": "",
bits((int)entry.dest, 1) ? " 1": "",
@@ -155,36 +201,22 @@ X86ISA::I82094AA::signalInterrupt(int line)
bits((int)entry.dest, 6) ? " 6": "",
bits((int)entry.dest, 7) ? " 7": ""
);
+ uint8_t dests = entry.dest;
+ uint8_t id = 0;
+ while(dests) {
+ if (dests & 0x1) {
+ PacketPtr pkt = buildIntRequest(id, message);
+ if (sys->getMemoryMode() == Enums::timing)
+ intPort->sendMessageTiming(pkt, latency);
+ else if (sys->getMemoryMode() == Enums::atomic)
+ intPort->sendMessageAtomic(pkt);
+ else
+ panic("Unrecognized memory mode.\n");
+ }
+ dests >>= 1;
+ id++;
+ }
}
- switch(entry.deliveryMode) {
- case 0:
- DPRINTF(I82094AA, "Delivery mode is: Fixed.\n");
- break;
- case 1:
- DPRINTF(I82094AA, "Delivery mode is: Lowest Priority.\n");
- break;
- case 2:
- DPRINTF(I82094AA, "Delivery mode is: SMI.\n");
- break;
- case 3:
- fatal("Tried to use reserved delivery mode "
- "for IO APIC entry %d.\n", line);
- break;
- case 4:
- DPRINTF(I82094AA, "Delivery mode is: NMI.\n");
- break;
- case 5:
- DPRINTF(I82094AA, "Delivery mode is: INIT.\n");
- break;
- case 6:
- fatal("Tried to use reserved delivery mode "
- "for IO APIC entry %d.\n", line);
- break;
- case 7:
- DPRINTF(I82094AA, "Delivery mode is: ExtINT.\n");
- break;
- }
- DPRINTF(I82094AA, "Vector is %#x.\n", entry.vector);
}
}
diff --git a/src/dev/x86/i82094aa.hh b/src/dev/x86/i82094aa.hh
index b442e3e92..6c874a5f9 100644
--- a/src/dev/x86/i82094aa.hh
+++ b/src/dev/x86/i82094aa.hh
@@ -60,6 +60,7 @@ class I82094AA : public PioDevice, public IntDev
EndBitUnion(RedirTableEntry)
protected:
+ System * system;
Tick latency;
Addr pioAddr;
@@ -95,9 +96,23 @@ class I82094AA : public PioDevice, public IntDev
range_list.push_back(RangeEx(pioAddr + 16, pioAddr + 20));
}
+ void getIntAddrRange(AddrRangeList &range_list)
+ {
+ range_list.clear();
+ range_list.push_back(RangeEx(x86InterruptAddress(1, 0),
+ x86InterruptAddress(1, 0) + PhysAddrAPICRangeSize));
+ }
+
void writeReg(uint8_t offset, uint32_t value);
uint32_t readReg(uint8_t offset);
+ Port *getPort(const std::string &if_name, int idx = -1)
+ {
+ if (if_name == "int_port")
+ return intPort;
+ return PioDevice::getPort(if_name, idx);
+ }
+
void signalInterrupt(int line);
};
diff --git a/src/dev/x86/i8259.hh b/src/dev/x86/i8259.hh
index f38644222..1c14e5397 100644
--- a/src/dev/x86/i8259.hh
+++ b/src/dev/x86/i8259.hh
@@ -74,9 +74,9 @@ class I8259 : public BasicPioDevice, public IntDev
return dynamic_cast<const Params *>(_params);
}
- I8259(Params * p) : BasicPioDevice(p), latency(p->pio_latency),
- output(p->output), mode(p->mode), readIRR(true),
- initControlWord(0)
+ I8259(Params * p) : BasicPioDevice(p), IntDev(this),
+ latency(p->pio_latency), output(p->output),
+ mode(p->mode), readIRR(true), initControlWord(0)
{
pioSize = 2;
}
diff --git a/src/dev/x86/intdev.hh b/src/dev/x86/intdev.hh
index 7a369f8fa..d36ed462a 100644
--- a/src/dev/x86/intdev.hh
+++ b/src/dev/x86/intdev.hh
@@ -32,7 +32,11 @@
#define __DEV_X86_INTDEV_HH__
#include <assert.h>
+#include <string>
+#include "arch/x86/x86_traits.hh"
+#include "mem/mem_object.hh"
+#include "mem/mport.hh"
#include "sim/sim_object.hh"
#include "params/X86IntPin.hh"
@@ -40,11 +44,73 @@ namespace X86ISA {
class IntDev
{
+ protected:
+ class IntPort : public MessagePort
+ {
+ IntDev * device;
+ Tick latency;
+ Addr intAddr;
+ public:
+ IntPort(const std::string &_name, MemObject * _parent,
+ IntDev *dev, Tick _latency) :
+ MessagePort(_name, _parent), device(dev), latency(_latency)
+ {
+ }
+
+ void getDeviceAddressRanges(AddrRangeList &resp, bool &snoop)
+ {
+ snoop = false;
+ device->getIntAddrRange(resp);
+ }
+
+ Tick recvMessage(PacketPtr pkt)
+ {
+ return device->recvMessage(pkt);
+ }
+
+ void recvStatusChange(Status status)
+ {
+ if (status == RangeChange) {
+ sendStatusChange(Port::RangeChange);
+ }
+ }
+
+ };
+
+ IntPort * intPort;
+
public:
+ IntDev(MemObject * parent, Tick latency = 0)
+ {
+ if (parent != NULL) {
+ intPort = new IntPort(parent->name() + ".int_port",
+ parent, this, latency);
+ } else {
+ intPort = NULL;
+ }
+ }
+
virtual ~IntDev()
{}
+
+ virtual void
+ signalInterrupt(int line)
+ {
+ panic("signalInterrupt not implemented.\n");
+ }
+
+ virtual Tick
+ recvMessage(PacketPtr pkt)
+ {
+ panic("recvMessage not implemented.\n");
+ return 0;
+ }
+
virtual void
- signalInterrupt(int line) = 0;
+ getIntAddrRange(AddrRangeList &range_list)
+ {
+ panic("intAddrRange not implemented.\n");
+ }
};
class IntPin : public SimObject
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 11:10:30 +0000