rename AlphaConsole to AlphaBackdoor

--HG--
rename : src/dev/alpha/AlphaConsole.py => src/dev/alpha/AlphaBackdoor.py
rename : src/dev/alpha/console.cc => src/dev/alpha/backdoor.cc
rename : src/dev/alpha/console.hh => src/dev/alpha/backdoor.hh

1 files changed, 310 insertions, 0 deletions

diff --git a/src/dev/alpha/backdoor.cc b/src/dev/alpha/backdoor.cc
new file mode 100644
index 000000000..3ba6cbd24
--- /dev/null
+++ b/src/dev/alpha/backdoor.cc
@@ -0,0 +1,310 @@
+/*
+ * Copyright (c) 2001-2005 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Authors: Nathan Binkert
+ *          Ali Saidi
+ *          Steve Reinhardt
+ *          Erik Hallnor
+ */
+
+/** @file
+ * Alpha Console Backdoor Definition
+ */
+
+#include <cstddef>
+#include <string>
+
+#include "arch/alpha/system.hh"
+#include "base/inifile.hh"
+#include "base/str.hh"
+#include "base/trace.hh"
+#include "cpu/base.hh"
+#include "cpu/thread_context.hh"
+#include "dev/alpha/backdoor.hh"
+#include "dev/platform.hh"
+#include "dev/simple_disk.hh"
+#include "dev/terminal.hh"
+#include "mem/packet.hh"
+#include "mem/packet_access.hh"
+#include "mem/physical.hh"
+#include "params/AlphaBackdoor.hh"
+#include "sim/sim_object.hh"
+
+using namespace std;
+using namespace AlphaISA;
+
+AlphaBackdoor::AlphaBackdoor(const Params *p)
+    : BasicPioDevice(p), disk(p->disk), terminal(p->terminal),
+      system(p->system), cpu(p->cpu)
+{
+
+    pioSize = sizeof(struct AlphaAccess);
+
+    alphaAccess = new Access();
+    alphaAccess->last_offset = pioSize - 1;
+
+    alphaAccess->version = ALPHA_ACCESS_VERSION;
+    alphaAccess->diskUnit = 1;
+
+    alphaAccess->diskCount = 0;
+    alphaAccess->diskPAddr = 0;
+    alphaAccess->diskBlock = 0;
+    alphaAccess->diskOperation = 0;
+    alphaAccess->outputChar = 0;
+    alphaAccess->inputChar = 0;
+    std::memset(alphaAccess->cpuStack, 0, sizeof(alphaAccess->cpuStack));
+
+}
+
+void
+AlphaBackdoor::startup()
+{
+    system->setAlphaAccess(pioAddr);
+    alphaAccess->numCPUs = system->getNumCPUs();
+    alphaAccess->kernStart = system->getKernelStart();
+    alphaAccess->kernEnd = system->getKernelEnd();
+    alphaAccess->entryPoint = system->getKernelEntry();
+    alphaAccess->mem_size = system->physmem->size();
+    alphaAccess->cpuClock = cpu->frequency() / 1000000; // In MHz
+    alphaAccess->intrClockFrequency = params()->platform->intrFrequency();
+}
+
+Tick
+AlphaBackdoor::read(PacketPtr pkt)
+{
+
+    /** XXX Do we want to push the addr munging to a bus brige or something? So
+     * the device has it's physical address and then the bridge adds on whatever
+     * machine dependent address swizzle is required?
+     */
+
+    assert(pkt->getAddr() >= pioAddr && pkt->getAddr() < pioAddr + pioSize);
+
+    Addr daddr = pkt->getAddr() - pioAddr;
+
+    pkt->allocate();
+    pkt->makeAtomicResponse();
+
+    switch (pkt->getSize())
+    {
+        case sizeof(uint32_t):
+            switch (daddr)
+            {
+                case offsetof(AlphaAccess, last_offset):
+                    pkt->set(alphaAccess->last_offset);
+                    break;
+                case offsetof(AlphaAccess, version):
+                    pkt->set(alphaAccess->version);
+                    break;
+                case offsetof(AlphaAccess, numCPUs):
+                    pkt->set(alphaAccess->numCPUs);
+                    break;
+                case offsetof(AlphaAccess, intrClockFrequency):
+                    pkt->set(alphaAccess->intrClockFrequency);
+                    break;
+                default:
+                    /* Old console code read in everyting as a 32bit int
+                     * we now break that for better error checking.
+                     */
+                  pkt->setBadAddress();
+            }
+            DPRINTF(AlphaBackdoor, "read: offset=%#x val=%#x\n", daddr,
+                    pkt->get<uint32_t>());
+            break;
+        case sizeof(uint64_t):
+            switch (daddr)
+            {
+                case offsetof(AlphaAccess, inputChar):
+                    pkt->set(terminal->console_in());
+                    break;
+                case offsetof(AlphaAccess, cpuClock):
+                    pkt->set(alphaAccess->cpuClock);
+                    break;
+                case offsetof(AlphaAccess, mem_size):
+                    pkt->set(alphaAccess->mem_size);
+                    break;
+                case offsetof(AlphaAccess, kernStart):
+                    pkt->set(alphaAccess->kernStart);
+                    break;
+                case offsetof(AlphaAccess, kernEnd):
+                    pkt->set(alphaAccess->kernEnd);
+                    break;
+                case offsetof(AlphaAccess, entryPoint):
+                    pkt->set(alphaAccess->entryPoint);
+                    break;
+                case offsetof(AlphaAccess, diskUnit):
+                    pkt->set(alphaAccess->diskUnit);
+                    break;
+                case offsetof(AlphaAccess, diskCount):
+                    pkt->set(alphaAccess->diskCount);
+                    break;
+                case offsetof(AlphaAccess, diskPAddr):
+                    pkt->set(alphaAccess->diskPAddr);
+                    break;
+                case offsetof(AlphaAccess, diskBlock):
+                    pkt->set(alphaAccess->diskBlock);
+                    break;
+                case offsetof(AlphaAccess, diskOperation):
+                    pkt->set(alphaAccess->diskOperation);
+                    break;
+                case offsetof(AlphaAccess, outputChar):
+                    pkt->set(alphaAccess->outputChar);
+                    break;
+                default:
+                    int cpunum = (daddr - offsetof(AlphaAccess, cpuStack)) /
+                                 sizeof(alphaAccess->cpuStack[0]);
+
+                    if (cpunum >= 0 && cpunum < 64)
+                        pkt->set(alphaAccess->cpuStack[cpunum]);
+                    else
+                        panic("Unknown 64bit access, %#x\n", daddr);
+            }
+            DPRINTF(AlphaBackdoor, "read: offset=%#x val=%#x\n", daddr,
+                    pkt->get<uint64_t>());
+            break;
+        default:
+          pkt->setBadAddress();
+    }
+    return pioDelay;
+}
+
+Tick
+AlphaBackdoor::write(PacketPtr pkt)
+{
+    assert(pkt->getAddr() >= pioAddr && pkt->getAddr() < pioAddr + pioSize);
+    Addr daddr = pkt->getAddr() - pioAddr;
+
+    uint64_t val = pkt->get<uint64_t>();
+    assert(pkt->getSize() == sizeof(uint64_t));
+
+    switch (daddr) {
+      case offsetof(AlphaAccess, diskUnit):
+        alphaAccess->diskUnit = val;
+        break;
+
+      case offsetof(AlphaAccess, diskCount):
+        alphaAccess->diskCount = val;
+        break;
+
+      case offsetof(AlphaAccess, diskPAddr):
+        alphaAccess->diskPAddr = val;
+        break;
+
+      case offsetof(AlphaAccess, diskBlock):
+        alphaAccess->diskBlock = val;
+        break;
+
+      case offsetof(AlphaAccess, diskOperation):
+        if (val == 0x13)
+            disk->read(alphaAccess->diskPAddr, alphaAccess->diskBlock,
+                       alphaAccess->diskCount);
+        else
+            panic("Invalid disk operation!");
+
+        break;
+
+      case offsetof(AlphaAccess, outputChar):
+        terminal->out((char)(val & 0xff));
+        break;
+
+      default:
+        int cpunum = (daddr - offsetof(AlphaAccess, cpuStack)) /
+                     sizeof(alphaAccess->cpuStack[0]);
+        warn("%d: Trying to launch CPU number %d!", curTick, cpunum);
+        assert(val > 0 && "Must not access primary cpu");
+        if (cpunum >= 0 && cpunum < 64)
+            alphaAccess->cpuStack[cpunum] = val;
+        else
+            panic("Unknown 64bit access, %#x\n", daddr);
+    }
+
+    pkt->makeAtomicResponse();
+
+    return pioDelay;
+}
+
+void
+AlphaBackdoor::Access::serialize(ostream &os)
+{
+    SERIALIZE_SCALAR(last_offset);
+    SERIALIZE_SCALAR(version);
+    SERIALIZE_SCALAR(numCPUs);
+    SERIALIZE_SCALAR(mem_size);
+    SERIALIZE_SCALAR(cpuClock);
+    SERIALIZE_SCALAR(intrClockFrequency);
+    SERIALIZE_SCALAR(kernStart);
+    SERIALIZE_SCALAR(kernEnd);
+    SERIALIZE_SCALAR(entryPoint);
+    SERIALIZE_SCALAR(diskUnit);
+    SERIALIZE_SCALAR(diskCount);
+    SERIALIZE_SCALAR(diskPAddr);
+    SERIALIZE_SCALAR(diskBlock);
+    SERIALIZE_SCALAR(diskOperation);
+    SERIALIZE_SCALAR(outputChar);
+    SERIALIZE_SCALAR(inputChar);
+    SERIALIZE_ARRAY(cpuStack,64);
+}
+
+void
+AlphaBackdoor::Access::unserialize(Checkpoint *cp, const std::string &section)
+{
+    UNSERIALIZE_SCALAR(last_offset);
+    UNSERIALIZE_SCALAR(version);
+    UNSERIALIZE_SCALAR(numCPUs);
+    UNSERIALIZE_SCALAR(mem_size);
+    UNSERIALIZE_SCALAR(cpuClock);
+    UNSERIALIZE_SCALAR(intrClockFrequency);
+    UNSERIALIZE_SCALAR(kernStart);
+    UNSERIALIZE_SCALAR(kernEnd);
+    UNSERIALIZE_SCALAR(entryPoint);
+    UNSERIALIZE_SCALAR(diskUnit);
+    UNSERIALIZE_SCALAR(diskCount);
+    UNSERIALIZE_SCALAR(diskPAddr);
+    UNSERIALIZE_SCALAR(diskBlock);
+    UNSERIALIZE_SCALAR(diskOperation);
+    UNSERIALIZE_SCALAR(outputChar);
+    UNSERIALIZE_SCALAR(inputChar);
+    UNSERIALIZE_ARRAY(cpuStack, 64);
+}
+
+void
+AlphaBackdoor::serialize(ostream &os)
+{
+    alphaAccess->serialize(os);
+}
+
+void
+AlphaBackdoor::unserialize(Checkpoint *cp, const std::string &section)
+{
+    alphaAccess->unserialize(cp, section);
+}
+
+AlphaBackdoor *
+AlphaBackdoorParams::create()
+{
+    return new AlphaBackdoor(this);
+}