From: Gabe Black <gblack@eecs.umich.edu>
Date: Sun, 19 Apr 2009 09:42:19 +0000 (-0700)
Subject: X86: Make code that sends an interrupt from the IO APIC available for IPIs.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=9549694ecd1cc80e2b690631ea58d14778d368af;p=gem5.git

X86: Make code that sends an interrupt from the IO APIC available for IPIs.
---

diff --git a/src/dev/x86/SConscript b/src/dev/x86/SConscript
index e7543dfdf..37b292f00 100644
--- a/src/dev/x86/SConscript
+++ b/src/dev/x86/SConscript
@@ -67,3 +67,4 @@ if env['FULL_SYSTEM'] and env['TARGET_ISA'] == 'x86':
 
     SimObject('X86IntPin.py')
     Source('intdev.cc')
+    TraceFlag('IntDev')
diff --git a/src/dev/x86/i82094aa.cc b/src/dev/x86/i82094aa.cc
index d160fcb24..2656a21f9 100644
--- a/src/dev/x86/i82094aa.cc
+++ b/src/dev/x86/i82094aa.cc
@@ -162,54 +162,7 @@ X86ISA::I82094AA::signalInterrupt(int line)
         message.destMode = entry.destMode;
         message.level = entry.polarity;
         message.trigger = entry.trigger;
-
-        if (DeliveryMode::isReserved(entry.deliveryMode)) {
-            fatal("Tried to use reserved delivery mode "
-                    "for IO APIC entry %d.\n", line);
-        } else if (DTRACE(I82094AA)) {
-            DPRINTF(I82094AA, "Delivery mode is: %s.\n",
-                    DeliveryMode::names[entry.deliveryMode]);
-            DPRINTF(I82094AA, "Vector is %#x.\n", message.vector);
-        }
-
-        if (entry.destMode == 0) {
-            DPRINTF(I82094AA,
-                    "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, "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": "",
-                    bits((int)entry.dest, 2) ? " 2": "",
-                    bits((int)entry.dest, 3) ? " 3": "",
-                    bits((int)entry.dest, 4) ? " 4": "",
-                    bits((int)entry.dest, 5) ? " 5": "",
-                    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++;
-            }
-        }
+        intPort->sendMessage(message, sys->getMemoryMode() == Enums::timing);
     }
 }
 
diff --git a/src/dev/x86/intdev.cc b/src/dev/x86/intdev.cc
index e386687a9..3b29eb7bf 100644
--- a/src/dev/x86/intdev.cc
+++ b/src/dev/x86/intdev.cc
@@ -30,6 +30,53 @@
 
 #include "dev/x86/intdev.hh"
 
+void
+X86ISA::IntDev::IntPort::sendMessage(TriggerIntMessage message, bool timing)
+{
+    if (DeliveryMode::isReserved(message.deliveryMode)) {
+        fatal("Tried to use reserved delivery mode %d\n",
+                message.deliveryMode);
+    } else if (DTRACE(IntDev)) {
+        DPRINTF(IntDev, "Delivery mode is: %s.\n",
+                DeliveryMode::names[message.deliveryMode]);
+        DPRINTF(IntDev, "Vector is %#x.\n", message.vector);
+    }
+    if (message.destMode == 0) {
+        DPRINTF(IntDev,
+                "Sending interrupt to APIC ID %d.\n", message.destination);
+        PacketPtr pkt = buildIntRequest(message.destination, message);
+        if (timing)
+            sendMessageTiming(pkt, latency);
+        else
+            sendMessageAtomic(pkt);
+    } else {
+        DPRINTF(IntDev, "Sending interrupts to APIC IDs:"
+                "%s%s%s%s%s%s%s%s\n",
+                bits((int)message.destination, 0) ? " 0": "",
+                bits((int)message.destination, 1) ? " 1": "",
+                bits((int)message.destination, 2) ? " 2": "",
+                bits((int)message.destination, 3) ? " 3": "",
+                bits((int)message.destination, 4) ? " 4": "",
+                bits((int)message.destination, 5) ? " 5": "",
+                bits((int)message.destination, 6) ? " 6": "",
+                bits((int)message.destination, 7) ? " 7": ""
+                );
+        uint8_t dests = message.destination;
+        uint8_t id = 0;
+        while(dests) {
+            if (dests & 0x1) {
+                PacketPtr pkt = buildIntRequest(id, message);
+                if (timing)
+                    sendMessageTiming(pkt, latency);
+                else
+                    sendMessageAtomic(pkt);
+            }
+            dests >>= 1;
+            id++;
+        }
+    }
+}
+
 X86ISA::IntSourcePin *
 X86IntSourcePinParams::create()
 {
diff --git a/src/dev/x86/intdev.hh b/src/dev/x86/intdev.hh
index ca8e7eea5..e95c72058 100644
--- a/src/dev/x86/intdev.hh
+++ b/src/dev/x86/intdev.hh
@@ -35,6 +35,7 @@
 #include <string>
 
 #include "arch/x86/x86_traits.hh"
+#include "arch/x86/intmessage.hh"
 #include "mem/mem_object.hh"
 #include "mem/mport.hh"
 #include "sim/sim_object.hh"
@@ -70,6 +71,10 @@ class IntDev
             return device->recvMessage(pkt);
         }
 
+        // This is x86 focused, so if this class becomes generic, this would
+        // need to be moved into a subclass.
+        void sendMessage(TriggerIntMessage message, bool timing);
+
         void recvStatusChange(Status status)
         {
             if (status == RangeChange) {