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diff --git a/dev/tsunami_cchip.cc b/dev/tsunami_cchip.cc
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-/*
- * Copyright (c) 2004-2005 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.
- */
-
-/** @file
- * Emulation of the Tsunami CChip CSRs
- */
-
-#include <deque>
-#include <string>
-#include <vector>
-
-#include "arch/alpha/ev5.hh"
-#include "base/trace.hh"
-#include "dev/tsunami_cchip.hh"
-#include "dev/tsunamireg.h"
-#include "dev/tsunami.hh"
-#include "mem/port.hh"
-#include "cpu/exec_context.hh"
-#include "cpu/intr_control.hh"
-#include "sim/builder.hh"
-#include "sim/system.hh"
-
-using namespace std;
-//Should this be AlphaISA?
-using namespace TheISA;
-
-TsunamiCChip::TsunamiCChip(Params *p)
- : BasicPioDevice(p), tsunami(p->tsunami)
-{
- pioSize = 0xfffffff;
-
- drir = 0;
- ipint = 0;
- itint = 0;
-
- for (int x = 0; x < Tsunami::Max_CPUs; x++)
- {
- dim[x] = 0;
- dir[x] = 0;
- }
-
- //Put back pointer in tsunami
- tsunami->cchip = this;
-}
-
-Tick
-TsunamiCChip::read(Packet *pkt)
-{
- DPRINTF(Tsunami, "read va=%#x size=%d\n", pkt->addr, pkt->size);
-
- assert(pkt->result == Unknown);
- assert(pkt->addr >= pioAddr && pkt->addr < pioAddr + pioSize);
-
- pkt->time += pioDelay;
- Addr regnum = (pkt->addr - pioAddr) >> 6;
- Addr daddr = (pkt->addr - pioAddr);
-
- pkt->allocate();
- switch (pkt->size) {
-
- case sizeof(uint64_t):
- if (daddr & TSDEV_CC_BDIMS)
- {
- pkt->set(dim[(daddr >> 4) & 0x3F]);
- break;
- }
-
- if (daddr & TSDEV_CC_BDIRS)
- {
- pkt->set(dir[(daddr >> 4) & 0x3F]);
- break;
- }
-
- switch(regnum) {
- case TSDEV_CC_CSR:
- pkt->set(0x0);
- break;
- case TSDEV_CC_MTR:
- panic("TSDEV_CC_MTR not implemeted\n");
- break;
- case TSDEV_CC_MISC:
- pkt->set((ipint << 8) & 0xF | (itint << 4) & 0xF |
- (pkt->req->getCpuNum() & 0x3));
- break;
- case TSDEV_CC_AAR0:
- case TSDEV_CC_AAR1:
- case TSDEV_CC_AAR2:
- case TSDEV_CC_AAR3:
- pkt->set(0);
- break;
- case TSDEV_CC_DIM0:
- pkt->set(dim[0]);
- break;
- case TSDEV_CC_DIM1:
- pkt->set(dim[1]);
- break;
- case TSDEV_CC_DIM2:
- pkt->set(dim[2]);
- break;
- case TSDEV_CC_DIM3:
- pkt->set(dim[3]);
- break;
- case TSDEV_CC_DIR0:
- pkt->set(dir[0]);
- break;
- case TSDEV_CC_DIR1:
- pkt->set(dir[1]);
- break;
- case TSDEV_CC_DIR2:
- pkt->set(dir[2]);
- break;
- case TSDEV_CC_DIR3:
- pkt->set(dir[3]);
- break;
- case TSDEV_CC_DRIR:
- pkt->set(drir);
- break;
- case TSDEV_CC_PRBEN:
- panic("TSDEV_CC_PRBEN not implemented\n");
- break;
- case TSDEV_CC_IIC0:
- case TSDEV_CC_IIC1:
- case TSDEV_CC_IIC2:
- case TSDEV_CC_IIC3:
- panic("TSDEV_CC_IICx not implemented\n");
- break;
- case TSDEV_CC_MPR0:
- case TSDEV_CC_MPR1:
- case TSDEV_CC_MPR2:
- case TSDEV_CC_MPR3:
- panic("TSDEV_CC_MPRx not implemented\n");
- break;
- case TSDEV_CC_IPIR:
- pkt->set(ipint);
- break;
- case TSDEV_CC_ITIR:
- pkt->set(itint);
- break;
- default:
- panic("default in cchip read reached, accessing 0x%x\n");
- } // uint64_t
-
- break;
- case sizeof(uint32_t):
- case sizeof(uint16_t):
- case sizeof(uint8_t):
- default:
- panic("invalid access size(?) for tsunami register!\n");
- }
- DPRINTF(Tsunami, "Tsunami CChip: read regnum=%#x size=%d data=%lld\n",
- regnum, pkt->size, pkt->get<uint64_t>());
-
- pkt->result = Success;
- return pioDelay;
-}
-
-Tick
-TsunamiCChip::write(Packet *pkt)
-{
- pkt->time += pioDelay;
-
-
- assert(pkt->addr >= pioAddr && pkt->addr < pioAddr + pioSize);
- Addr daddr = pkt->addr - pioAddr;
- Addr regnum = (pkt->addr - pioAddr) >> 6 ;
-
-
- assert(pkt->size == sizeof(uint64_t));
-
- DPRINTF(Tsunami, "write - addr=%#x value=%#x\n", pkt->addr, pkt->get<uint64_t>());
-
- bool supportedWrite = false;
-
-
- if (daddr & TSDEV_CC_BDIMS)
- {
- int number = (daddr >> 4) & 0x3F;
-
- uint64_t bitvector;
- uint64_t olddim;
- uint64_t olddir;
-
- olddim = dim[number];
- olddir = dir[number];
- dim[number] = pkt->get<uint64_t>();
- dir[number] = dim[number] & drir;
- for(int x = 0; x < Tsunami::Max_CPUs; x++)
- {
- bitvector = ULL(1) << x;
- // Figure out which bits have changed
- if ((dim[number] & bitvector) != (olddim & bitvector))
- {
- // The bit is now set and it wasn't before (set)
- if((dim[number] & bitvector) && (dir[number] & bitvector))
- {
- tsunami->intrctrl->post(number, TheISA::INTLEVEL_IRQ1, x);
- DPRINTF(Tsunami, "dim write resulting in posting dir"
- " interrupt to cpu %d\n", number);
- }
- else if ((olddir & bitvector) &&
- !(dir[number] & bitvector))
- {
- // The bit was set and now its now clear and
- // we were interrupting on that bit before
- tsunami->intrctrl->clear(number, TheISA::INTLEVEL_IRQ1, x);
- DPRINTF(Tsunami, "dim write resulting in clear"
- " dir interrupt to cpu %d\n", number);
-
- }
-
-
- }
- }
- } else {
- switch(regnum) {
- case TSDEV_CC_CSR:
- panic("TSDEV_CC_CSR write\n");
- case TSDEV_CC_MTR:
- panic("TSDEV_CC_MTR write not implemented\n");
- case TSDEV_CC_MISC:
- uint64_t ipreq;
- ipreq = (pkt->get<uint64_t>() >> 12) & 0xF;
- //If it is bit 12-15, this is an IPI post
- if (ipreq) {
- reqIPI(ipreq);
- supportedWrite = true;
- }
-
- //If it is bit 8-11, this is an IPI clear
- uint64_t ipintr;
- ipintr = (pkt->get<uint64_t>() >> 8) & 0xF;
- if (ipintr) {
- clearIPI(ipintr);
- supportedWrite = true;
- }
-
- //If it is the 4-7th bit, clear the RTC interrupt
- uint64_t itintr;
- itintr = (pkt->get<uint64_t>() >> 4) & 0xF;
- if (itintr) {
- clearITI(itintr);
- supportedWrite = true;
- }
-
- // ignore NXMs
- if (pkt->get<uint64_t>() & 0x10000000)
- supportedWrite = true;
-
- if(!supportedWrite)
- panic("TSDEV_CC_MISC write not implemented\n");
-
- break;
- case TSDEV_CC_AAR0:
- case TSDEV_CC_AAR1:
- case TSDEV_CC_AAR2:
- case TSDEV_CC_AAR3:
- panic("TSDEV_CC_AARx write not implemeted\n");
- case TSDEV_CC_DIM0:
- case TSDEV_CC_DIM1:
- case TSDEV_CC_DIM2:
- case TSDEV_CC_DIM3:
- int number;
- if(regnum == TSDEV_CC_DIM0)
- number = 0;
- else if(regnum == TSDEV_CC_DIM1)
- number = 1;
- else if(regnum == TSDEV_CC_DIM2)
- number = 2;
- else
- number = 3;
-
- uint64_t bitvector;
- uint64_t olddim;
- uint64_t olddir;
-
- olddim = dim[number];
- olddir = dir[number];
- dim[number] = pkt->get<uint64_t>();
- dir[number] = dim[number] & drir;
- for(int x = 0; x < 64; x++)
- {
- bitvector = ULL(1) << x;
- // Figure out which bits have changed
- if ((dim[number] & bitvector) != (olddim & bitvector))
- {
- // The bit is now set and it wasn't before (set)
- if((dim[number] & bitvector) && (dir[number] & bitvector))
- {
- tsunami->intrctrl->post(number, TheISA::INTLEVEL_IRQ1, x);
- DPRINTF(Tsunami, "posting dir interrupt to cpu 0\n");
- }
- else if ((olddir & bitvector) &&
- !(dir[number] & bitvector))
- {
- // The bit was set and now its now clear and
- // we were interrupting on that bit before
- tsunami->intrctrl->clear(number, TheISA::INTLEVEL_IRQ1, x);
- DPRINTF(Tsunami, "dim write resulting in clear"
- " dir interrupt to cpu %d\n",
- x);
-
- }
-
-
- }
- }
- break;
- case TSDEV_CC_DIR0:
- case TSDEV_CC_DIR1:
- case TSDEV_CC_DIR2:
- case TSDEV_CC_DIR3:
- panic("TSDEV_CC_DIR write not implemented\n");
- case TSDEV_CC_DRIR:
- panic("TSDEV_CC_DRIR write not implemented\n");
- case TSDEV_CC_PRBEN:
- panic("TSDEV_CC_PRBEN write not implemented\n");
- case TSDEV_CC_IIC0:
- case TSDEV_CC_IIC1:
- case TSDEV_CC_IIC2:
- case TSDEV_CC_IIC3:
- panic("TSDEV_CC_IICx write not implemented\n");
- case TSDEV_CC_MPR0:
- case TSDEV_CC_MPR1:
- case TSDEV_CC_MPR2:
- case TSDEV_CC_MPR3:
- panic("TSDEV_CC_MPRx write not implemented\n");
- case TSDEV_CC_IPIR:
- clearIPI(pkt->get<uint64_t>());
- break;
- case TSDEV_CC_ITIR:
- clearITI(pkt->get<uint64_t>());
- break;
- case TSDEV_CC_IPIQ:
- reqIPI(pkt->get<uint64_t>());
- break;
- default:
- panic("default in cchip read reached, accessing 0x%x\n");
- } // swtich(regnum)
- } // not BIG_TSUNAMI write
- pkt->result = Success;
- return pioDelay;
-}
-
-void
-TsunamiCChip::clearIPI(uint64_t ipintr)
-{
- int numcpus = tsunami->intrctrl->cpu->system->execContexts.size();
- assert(numcpus <= Tsunami::Max_CPUs);
-
- if (ipintr) {
- for (int cpunum=0; cpunum < numcpus; cpunum++) {
- // Check each cpu bit
- uint64_t cpumask = ULL(1) << cpunum;
- if (ipintr & cpumask) {
- // Check if there is a pending ipi
- if (ipint & cpumask) {
- ipint &= ~cpumask;
- tsunami->intrctrl->clear(cpunum, TheISA::INTLEVEL_IRQ3, 0);
- DPRINTF(IPI, "clear IPI IPI cpu=%d\n", cpunum);
- }
- else
- warn("clear IPI for CPU=%d, but NO IPI\n", cpunum);
- }
- }
- }
- else
- panic("Big IPI Clear, but not processors indicated\n");
-}
-
-void
-TsunamiCChip::clearITI(uint64_t itintr)
-{
- int numcpus = tsunami->intrctrl->cpu->system->execContexts.size();
- assert(numcpus <= Tsunami::Max_CPUs);
-
- if (itintr) {
- for (int i=0; i < numcpus; i++) {
- uint64_t cpumask = ULL(1) << i;
- if (itintr & cpumask & itint) {
- tsunami->intrctrl->clear(i, TheISA::INTLEVEL_IRQ2, 0);
- itint &= ~cpumask;
- DPRINTF(Tsunami, "clearing rtc interrupt to cpu=%d\n", i);
- }
- }
- }
- else
- panic("Big ITI Clear, but not processors indicated\n");
-}
-
-void
-TsunamiCChip::reqIPI(uint64_t ipreq)
-{
- int numcpus = tsunami->intrctrl->cpu->system->execContexts.size();
- assert(numcpus <= Tsunami::Max_CPUs);
-
- if (ipreq) {
- for (int cpunum=0; cpunum < numcpus; cpunum++) {
- // Check each cpu bit
- uint64_t cpumask = ULL(1) << cpunum;
- if (ipreq & cpumask) {
- // Check if there is already an ipi (bits 8:11)
- if (!(ipint & cpumask)) {
- ipint |= cpumask;
- tsunami->intrctrl->post(cpunum, TheISA::INTLEVEL_IRQ3, 0);
- DPRINTF(IPI, "send IPI cpu=%d\n", cpunum);
- }
- else
- warn("post IPI for CPU=%d, but IPI already\n", cpunum);
- }
- }
- }
- else
- panic("Big IPI Request, but not processors indicated\n");
-}
-
-
-void
-TsunamiCChip::postRTC()
-{
- int size = tsunami->intrctrl->cpu->system->execContexts.size();
- assert(size <= Tsunami::Max_CPUs);
-
- for (int i = 0; i < size; i++) {
- uint64_t cpumask = ULL(1) << i;
- if (!(cpumask & itint)) {
- itint |= cpumask;
- tsunami->intrctrl->post(i, TheISA::INTLEVEL_IRQ2, 0);
- DPRINTF(Tsunami, "Posting RTC interrupt to cpu=%d", i);
- }
- }
-
-}
-
-void
-TsunamiCChip::postDRIR(uint32_t interrupt)
-{
- uint64_t bitvector = ULL(1) << interrupt;
- uint64_t size = tsunami->intrctrl->cpu->system->execContexts.size();
- assert(size <= Tsunami::Max_CPUs);
- drir |= bitvector;
-
- for(int i=0; i < size; i++) {
- dir[i] = dim[i] & drir;
- if (dim[i] & bitvector) {
- tsunami->intrctrl->post(i, TheISA::INTLEVEL_IRQ1, interrupt);
- DPRINTF(Tsunami, "posting dir interrupt to cpu %d,"
- "interrupt %d\n",i, interrupt);
- }
- }
-}
-
-void
-TsunamiCChip::clearDRIR(uint32_t interrupt)
-{
- uint64_t bitvector = ULL(1) << interrupt;
- uint64_t size = tsunami->intrctrl->cpu->system->execContexts.size();
- assert(size <= Tsunami::Max_CPUs);
-
- if (drir & bitvector)
- {
- drir &= ~bitvector;
- for(int i=0; i < size; i++) {
- if (dir[i] & bitvector) {
- tsunami->intrctrl->clear(i, TheISA::INTLEVEL_IRQ1, interrupt);
- DPRINTF(Tsunami, "clearing dir interrupt to cpu %d,"
- "interrupt %d\n",i, interrupt);
-
- }
- dir[i] = dim[i] & drir;
- }
- }
- else
- DPRINTF(Tsunami, "Spurrious clear? interrupt %d\n", interrupt);
-}
-
-
-void
-TsunamiCChip::serialize(std::ostream &os)
-{
- SERIALIZE_ARRAY(dim, Tsunami::Max_CPUs);
- SERIALIZE_ARRAY(dir, Tsunami::Max_CPUs);
- SERIALIZE_SCALAR(ipint);
- SERIALIZE_SCALAR(itint);
- SERIALIZE_SCALAR(drir);
-}
-
-void
-TsunamiCChip::unserialize(Checkpoint *cp, const std::string &section)
-{
- UNSERIALIZE_ARRAY(dim, Tsunami::Max_CPUs);
- UNSERIALIZE_ARRAY(dir, Tsunami::Max_CPUs);
- UNSERIALIZE_SCALAR(ipint);
- UNSERIALIZE_SCALAR(itint);
- UNSERIALIZE_SCALAR(drir);
-}
-
-BEGIN_DECLARE_SIM_OBJECT_PARAMS(TsunamiCChip)
-
- Param<Addr> pio_addr;
- Param<Tick> pio_latency;
- SimObjectParam<Platform *> platform;
- SimObjectParam<System *> system;
- SimObjectParam<Tsunami *> tsunami;
-
-END_DECLARE_SIM_OBJECT_PARAMS(TsunamiCChip)
-
-BEGIN_INIT_SIM_OBJECT_PARAMS(TsunamiCChip)
-
- INIT_PARAM(pio_addr, "Device Address"),
- INIT_PARAM(pio_latency, "Programmed IO latency"),
- INIT_PARAM(platform, "platform"),
- INIT_PARAM(system, "system object"),
- INIT_PARAM(tsunami, "Tsunami")
-
-END_INIT_SIM_OBJECT_PARAMS(TsunamiCChip)
-
-CREATE_SIM_OBJECT(TsunamiCChip)
-{
- TsunamiCChip::Params *p = new TsunamiCChip::Params;
- p->name = getInstanceName();
- p->pio_addr = pio_addr;
- p->pio_delay = pio_latency;
- p->platform = platform;
- p->system = system;
- p->tsunami = tsunami;
- return new TsunamiCChip(p);
-}
-
-REGISTER_SIM_OBJECT("TsunamiCChip", TsunamiCChip)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-13 08:05:49 +0000