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gem5/dev/tsunami_cchip.cc
Nathan Binkert 425dda00df Macros are nasty, so let's get rid of them. Convert all 
all macros in ev5.hh to inline functions or constant typed
variables and make them follow our style while we're at it.

All of the stuff in this file actually belongs in the ISA
traits code, but this is a first step at getting things done
in the right manner.

arch/alpha/alpha_memory.cc:
arch/alpha/alpha_memory.hh:
arch/alpha/ev5.cc:
arch/alpha/isa_desc:
dev/ns_gige.cc:
kern/tru64/tru64_events.cc:
    deal with changes in ev5.hh
arch/alpha/ev5.hh:
    Macros are nasty, so let's get rid of them.  Convert all
    all macros to inline functions or constant typed variables.
    Make them follow our style while we're at it.

    All of the stuff in this file actually belongs in the ISA
    traits code, but this is a first step at getting things done
    in the right manner.
arch/alpha/isa_traits.hh:
    move some of the ev5 specific code into the isa
arch/alpha/vtophys.cc:
base/remote_gdb.cc:
    deal with isa addition
cpu/exec_context.hh:
    be less isa specific and use the isa traits to figure out
    what we can.
dev/alpha_console.cc:
dev/pciconfigall.cc:
dev/tsunami_cchip.cc:
dev/tsunami_io.cc:
dev/tsunami_pchip.cc:
dev/uart.cc:
    deal with changes in ev5.hh
    I don't believe this masking is actually necessary.  We should
    look at removing it later.
dev/ide_ctrl.cc:
    sort #includes
    deal with changes in ev5.hh

--HG--
extra : convert_revision : c8a3adf0a4b1d198aefe38fc38b295abf289b08a
2004-11-13 14:01:38 -05:00

457 lines
16 KiB
C++
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/*
* Copyright (c) 2004 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 "base/trace.hh"
#include "dev/tsunami_cchip.hh"
#include "dev/tsunamireg.h"
#include "dev/tsunami.hh"
#include "mem/bus/bus.hh"
#include "mem/bus/pio_interface.hh"
#include "mem/bus/pio_interface_impl.hh"
#include "mem/functional_mem/memory_control.hh"
#include "cpu/intr_control.hh"
#include "sim/builder.hh"
#include "sim/system.hh"
using namespace std;
TsunamiCChip::TsunamiCChip(const string &name, Tsunami *t, Addr a,
MemoryController *mmu, HierParams *hier, Bus* bus,
Tick pio_latency)
: PioDevice(name), addr(a), tsunami(t)
{
mmu->add_child(this, RangeSize(addr, size));
for(int i=0; i < Tsunami::Max_CPUs; i++) {
dim[i] = 0;
dir[i] = 0;
dirInterrupting[i] = false;
ipiInterrupting[i] = false;
RTCInterrupting[i] = false;
}
if (bus) {
pioInterface = newPioInterface(name, hier, bus, this,
&TsunamiCChip::cacheAccess);
pioInterface->addAddrRange(RangeSize(addr, size));
pioLatency = pio_latency * bus->clockRatio;
}
drir = 0;
misc = 0;
//Put back pointer in tsunami
tsunami->cchip = this;
}
Fault
TsunamiCChip::read(MemReqPtr &req, uint8_t *data)
{
DPRINTF(Tsunami, "read va=%#x size=%d\n",
req->vaddr, req->size);
Addr daddr = (req->paddr - (addr & EV5::PAddrImplMask)) >> 6;
ExecContext *xc = req->xc;
switch (req->size) {
case sizeof(uint64_t):
switch(daddr) {
case TSDEV_CC_CSR:
*(uint64_t*)data = 0x0;
return No_Fault;
case TSDEV_CC_MTR:
panic("TSDEV_CC_MTR not implemeted\n");
return No_Fault;
case TSDEV_CC_MISC:
*(uint64_t*)data = misc | (xc->cpu_id & 0x3);
return No_Fault;
case TSDEV_CC_AAR0:
case TSDEV_CC_AAR1:
case TSDEV_CC_AAR2:
case TSDEV_CC_AAR3:
*(uint64_t*)data = 0;
return No_Fault;
case TSDEV_CC_DIM0:
*(uint64_t*)data = dim[0];
return No_Fault;
case TSDEV_CC_DIM1:
*(uint64_t*)data = dim[1];
return No_Fault;
case TSDEV_CC_DIM2:
*(uint64_t*)data = dim[2];
return No_Fault;
case TSDEV_CC_DIM3:
*(uint64_t*)data = dim[3];
return No_Fault;
case TSDEV_CC_DIR0:
*(uint64_t*)data = dir[0];
return No_Fault;
case TSDEV_CC_DIR1:
*(uint64_t*)data = dir[1];
return No_Fault;
case TSDEV_CC_DIR2:
*(uint64_t*)data = dir[2];
return No_Fault;
case TSDEV_CC_DIR3:
*(uint64_t*)data = dir[3];
return No_Fault;
case TSDEV_CC_DRIR:
*(uint64_t*)data = drir;
return No_Fault;
case TSDEV_CC_PRBEN:
panic("TSDEV_CC_PRBEN not implemented\n");
return No_Fault;
case TSDEV_CC_IIC0:
case TSDEV_CC_IIC1:
case TSDEV_CC_IIC2:
case TSDEV_CC_IIC3:
panic("TSDEV_CC_IICx not implemented\n");
return No_Fault;
case TSDEV_CC_MPR0:
case TSDEV_CC_MPR1:
case TSDEV_CC_MPR2:
case TSDEV_CC_MPR3:
panic("TSDEV_CC_MPRx not implemented\n");
return No_Fault;
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");
}
DPRINTFN("Tsunami CChip ERROR: read daddr=%#x size=%d\n", daddr, req->size);
return No_Fault;
}
Fault
TsunamiCChip::write(MemReqPtr &req, const uint8_t *data)
{
DPRINTF(Tsunami, "write - va=%#x value=%#x size=%d \n",
req->vaddr, *(uint64_t*)data, req->size);
Addr daddr = (req->paddr - (addr & EV5::PAddrImplMask)) >> 6;
bool supportedWrite = false;
uint64_t size = tsunami->intrctrl->cpu->system->execContexts.size();
switch (req->size) {
case sizeof(uint64_t):
switch(daddr) {
case TSDEV_CC_CSR:
panic("TSDEV_CC_CSR write\n");
return No_Fault;
case TSDEV_CC_MTR:
panic("TSDEV_CC_MTR write not implemented\n");
return No_Fault;
case TSDEV_CC_MISC:
uint64_t ipreq;
ipreq = (*(uint64_t*)data >> 12) & 0xF;
//If it is bit 12-15, this is an IPI post
if (ipreq) {
for (int cpunum=0; cpunum < Tsunami::Max_CPUs; cpunum++) {
// Check each cpu bit
if (ipreq & (1 << cpunum)) {
// Check if there is already an ipi (bits 8:11)
if (!(misc & (0x100 << cpunum))) {
misc |= (0x100 << cpunum);
tsunami->intrctrl->post(cpunum,
TheISA::INTLEVEL_IRQ3, 0);
DPRINTF(IPI, "send IPI cpu=%d from=%d\n",
cpunum, req->cpu_num);
}
}
}
supportedWrite = true;
}
//If it is bit 8-11, this is an IPI clear
uint64_t ipintr;
ipintr = (*(uint64_t*)data >> 8) & 0xF;
if (ipintr) {
for (int cpunum=0; cpunum < Tsunami::Max_CPUs; cpunum++) {
// Check each cpu bit
if (ipintr & (1 << cpunum)) {
// Check if there is a pending ipi (bits 8:11)
if (misc & (0x100 << cpunum)) {
misc &= ~(0x100 << cpunum);
tsunami->intrctrl->clear(cpunum,
TheISA::INTLEVEL_IRQ3, 0);
DPRINTF(IPI, "clear IPI IPI cpu=%d from=%d\n",
cpunum, req->cpu_num);
}
}
}
supportedWrite = true;
}
//If it is the 4-7th bit, clear the RTC interrupt
uint64_t itintr;
if ((itintr = (*(uint64_t*) data) & (0xf<<4))) {
//Clear the bits in ITINTR
misc &= ~(itintr);
for (int i=0; i < size; i++) {
if ((itintr & (1 << (i+4))) && RTCInterrupting[i]) {
tsunami->intrctrl->clear(i, TheISA::INTLEVEL_IRQ2, 0);
RTCInterrupting[i] = false;
DPRINTF(Tsunami, "clearing rtc interrupt to cpu=%d\n", i);
}
}
supportedWrite = true;
}
// ignore NXMs
if (*(uint64_t*)data & 0x10000000)
supportedWrite = true;
if(!supportedWrite)
panic("TSDEV_CC_MISC write not implemented\n");
return No_Fault;
case TSDEV_CC_AAR0:
case TSDEV_CC_AAR1:
case TSDEV_CC_AAR2:
case TSDEV_CC_AAR3:
panic("TSDEV_CC_AARx write not implemeted\n");
return No_Fault;
case TSDEV_CC_DIM0:
case TSDEV_CC_DIM1:
case TSDEV_CC_DIM2:
case TSDEV_CC_DIM3:
int number;
if(daddr == TSDEV_CC_DIM0)
number = 0;
else if(daddr == TSDEV_CC_DIM1)
number = 1;
else if(daddr == 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] = *(uint64_t*)data;
dir[number] = dim[number] & drir;
for(int x = 0; x < 64; x++)
{
bitvector = (uint64_t)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 0\n");
}
}
}
return No_Fault;
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");
default:
panic("default in cchip read reached, accessing 0x%x\n");
}
break;
case sizeof(uint32_t):
case sizeof(uint16_t):
case sizeof(uint8_t):
default:
panic("invalid access size(?) for tsunami register!\n");
}
DPRINTFN("Tsunami ERROR: write daddr=%#x size=%d\n", daddr, req->size);
return No_Fault;
}
void
TsunamiCChip::postRTC()
{
int size = tsunami->intrctrl->cpu->system->execContexts.size();
for (int i = 0; i < size; i++) {
if (!RTCInterrupting[i]) {
misc |= 16 << i;
RTCInterrupting[i] = true;
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 = (uint64_t)0x1 << interrupt;
drir |= bitvector;
uint64_t size = tsunami->intrctrl->cpu->system->execContexts.size();
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 = (uint64_t)0x1 << interrupt;
uint64_t size = tsunami->intrctrl->cpu->system->execContexts.size();
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);
}
Tick
TsunamiCChip::cacheAccess(MemReqPtr &req)
{
return curTick + pioLatency;
}
void
TsunamiCChip::serialize(std::ostream &os)
{
SERIALIZE_ARRAY(dim, Tsunami::Max_CPUs);
SERIALIZE_ARRAY(dir, Tsunami::Max_CPUs);
SERIALIZE_ARRAY(dirInterrupting, Tsunami::Max_CPUs);
SERIALIZE_ARRAY(ipiInterrupting, Tsunami::Max_CPUs);
SERIALIZE_SCALAR(drir);
SERIALIZE_SCALAR(misc);
SERIALIZE_ARRAY(RTCInterrupting, Tsunami::Max_CPUs);
}
void
TsunamiCChip::unserialize(Checkpoint *cp, const std::string &section)
{
UNSERIALIZE_ARRAY(dim, Tsunami::Max_CPUs);
UNSERIALIZE_ARRAY(dir, Tsunami::Max_CPUs);
UNSERIALIZE_ARRAY(dirInterrupting, Tsunami::Max_CPUs);
UNSERIALIZE_ARRAY(ipiInterrupting, Tsunami::Max_CPUs);
UNSERIALIZE_SCALAR(drir);
UNSERIALIZE_SCALAR(misc);
UNSERIALIZE_ARRAY(RTCInterrupting, Tsunami::Max_CPUs);
}
BEGIN_DECLARE_SIM_OBJECT_PARAMS(TsunamiCChip)
SimObjectParam<Tsunami *> tsunami;
SimObjectParam<MemoryController *> mmu;
Param<Addr> addr;
SimObjectParam<Bus*> io_bus;
Param<Tick> pio_latency;
SimObjectParam<HierParams *> hier;
END_DECLARE_SIM_OBJECT_PARAMS(TsunamiCChip)
BEGIN_INIT_SIM_OBJECT_PARAMS(TsunamiCChip)
INIT_PARAM(tsunami, "Tsunami"),
INIT_PARAM(mmu, "Memory Controller"),
INIT_PARAM(addr, "Device Address"),
INIT_PARAM_DFLT(io_bus, "The IO Bus to attach to", NULL),
INIT_PARAM_DFLT(pio_latency, "Programmed IO latency in bus cycles", 1),
INIT_PARAM_DFLT(hier, "Hierarchy global variables", &defaultHierParams)
END_INIT_SIM_OBJECT_PARAMS(TsunamiCChip)
CREATE_SIM_OBJECT(TsunamiCChip)
{
return new TsunamiCChip(getInstanceName(), tsunami, addr, mmu, hier,
io_bus, pio_latency);
}
REGISTER_SIM_OBJECT("TsunamiCChip", TsunamiCChip)
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