* 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: Ali Saidi
- * Rick Strong
*/
/** @file
* Emulation of the Malta CChip CSRs
*/
+#include "dev/mips/malta_cchip.hh"
+
#include <deque>
#include <string>
#include <vector>
#include "base/trace.hh"
-#include "config/the_isa.hh"
#include "cpu/intr_control.hh"
#include "cpu/thread_context.hh"
#include "debug/Malta.hh"
#include "dev/mips/malta.hh"
-#include "dev/mips/malta_cchip.hh"
#include "dev/mips/maltareg.h"
#include "mem/packet.hh"
#include "mem/packet_access.hh"
#include "sim/system.hh"
using namespace std;
-using namespace TheISA;
MaltaCChip::MaltaCChip(Params *p)
- : BasicPioDevice(p), malta(p->malta)
+ : BasicPioDevice(p, 0xfffffff), malta(p->malta)
{
warn("MaltaCCHIP::MaltaCChip() not implemented.");
- pioSize = 0xfffffff;
//Put back pointer in malta
malta->cchip = this;
Tick
MaltaCChip::read(PacketPtr pkt)
{
- panic("MaltaCCHIP::read() not implemented.");
- return pioDelay;
- /*
- DPRINTF(Malta, "read va=%#x size=%d\n", pkt->getAddr(), pkt->getSize());
-
- assert(pkt->result == Packet::Unknown);
- assert(pkt->getAddr() >= pioAddr && pkt->getAddr() < pioAddr + pioSize);
-
- Addr regnum = (pkt->getAddr() - pioAddr) >> 6;
- Addr daddr = (pkt->getAddr() - pioAddr);
-
- pkt->allocate();
- switch (pkt->getSize()) {
-
- 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->contextId() & 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 malta register!\n");
- }
- DPRINTF(Malta, "Malta CChip: read regnum=%#x size=%d data=%lld\n",
- regnum, pkt->getSize(), pkt->get<uint64_t>());
-
- pkt->result = Packet::Success;
+ panic("MaltaCCHIP::read() not implemented.");
return pioDelay;
- */
}
Tick
MaltaCChip::write(PacketPtr pkt)
{
- panic("MaltaCCHIP::write() not implemented.");
- return pioDelay;
- /*
- assert(pkt->getAddr() >= pioAddr && pkt->getAddr() < pioAddr + pioSize);
- Addr daddr = pkt->getAddr() - pioAddr;
- Addr regnum = (pkt->getAddr() - pioAddr) >> 6 ;
-
-
- assert(pkt->getSize() == sizeof(uint64_t));
-
- DPRINTF(Malta, "write - addr=%#x value=%#x\n", pkt->getAddr(), 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 < Malta::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))
- {
- malta->intrctrl->post(number, TheISA::INTLEVEL_IRQ1, x);
- DPRINTF(Malta, "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
- malta->intrctrl->clear(number, TheISA::INTLEVEL_IRQ1, x);
- DPRINTF(Malta, "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))
- {
- malta->intrctrl->post(number, TheISA::INTLEVEL_IRQ1, x);
- DPRINTF(Malta, "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
- malta->intrctrl->clear(number, TheISA::INTLEVEL_IRQ1, x);
- DPRINTF(Malta, "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 = Packet::Success;
+ panic("MaltaCCHIP::write() not implemented.");
return pioDelay;
- */
}
void
MaltaCChip::clearIPI(uint64_t ipintr)
{
- panic("MaltaCCHIP::clear() not implemented.");
- /*
- int numcpus = malta->intrctrl->cpu->system->threadContexts.size();
- assert(numcpus <= Malta::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;
- malta->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");
- */
+ panic("MaltaCCHIP::clear() not implemented.");
}
void
MaltaCChip::clearITI(uint64_t itintr)
{
- panic("MaltaCCHIP::clearITI() not implemented.");
- /*
- int numcpus = malta->intrctrl->cpu->system->threadContexts.size();
- assert(numcpus <= Malta::Max_CPUs);
-
- if (itintr) {
- for (int i=0; i < numcpus; i++) {
- uint64_t cpumask = ULL(1) << i;
- if (itintr & cpumask & itint) {
- malta->intrctrl->clear(i, TheISA::INTLEVEL_IRQ2, 0);
- itint &= ~cpumask;
- DPRINTF(Malta, "clearing rtc interrupt to cpu=%d\n", i);
- }
- }
- }
- else
- panic("Big ITI Clear, but not processors indicated\n");
- */
+ panic("MaltaCCHIP::clearITI() not implemented.");
}
void
MaltaCChip::reqIPI(uint64_t ipreq)
{
- panic("MaltaCCHIP::reqIPI() not implemented.");
-
- /*
- int numcpus = malta->intrctrl->cpu->system->threadContexts.size();
- assert(numcpus <= Malta::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;
- malta->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");
- */
-
+ panic("MaltaCCHIP::reqIPI() not implemented.");
}
void
MaltaCChip::postRTC()
{
- panic("MaltaCCHIP::postRTC() not implemented.");
-
- /*
- int size = malta->intrctrl->cpu->system->threadContexts.size();
- assert(size <= Malta::Max_CPUs);
-
- for (int i = 0; i < size; i++) {
- uint64_t cpumask = ULL(1) << i;
- if (!(cpumask & itint)) {
- itint |= cpumask;
- malta->intrctrl->post(i, TheISA::INTLEVEL_IRQ2, 0);
- DPRINTF(Malta, "Posting RTC interrupt to cpu=%d", i);
- }
- }
- */
-
+ panic("MaltaCCHIP::postRTC() not implemented.");
}
void
uint64_t size = sys->threadContexts.size();
assert(size <= Malta::Max_CPUs);
- for(int i=0; i < size; i++) {
- //Note: Malta does not use index, but this was added to use the pre-existing implementation
- malta->intrctrl->post(i, interrupt, 0);
- DPRINTF(Malta, "posting interrupt to cpu %d,"
- "interrupt %d\n",i, interrupt);
+ for (int i=0; i < size; i++) {
+ //Note: Malta does not use index, but this was added to use the
+ //pre-existing implementation
+ malta->intrctrl->post(i, interrupt, 0);
+ DPRINTF(Malta, "posting interrupt to cpu %d, interrupt %d\n",
+ i, interrupt);
}
-
}
void
uint64_t size = sys->threadContexts.size();
assert(size <= Malta::Max_CPUs);
- for(int i=0; i < size; i++) {
- //Note: Malta does not use index, but this was added to use the pre-existing implementation
- malta->intrctrl->clear(i, interrupt, 0);
- DPRINTF(Malta, "clearing interrupt to cpu %d,"
- "interrupt %d\n",i, interrupt);
+ for (int i=0; i < size; i++) {
+ //Note: Malta does not use index, but this was added to use the
+ //pre-existing implementation
+ malta->intrctrl->clear(i, interrupt, 0);
+ DPRINTF(Malta, "clearing interrupt to cpu %d, interrupt %d\n",
+ i, interrupt);
}
}
void
-MaltaCChip::serialize(std::ostream &os)
+MaltaCChip::serialize(CheckpointOut &cp) const
{
- // SERIALIZE_ARRAY(dim, Malta::Max_CPUs);
- //SERIALIZE_ARRAY(dir, Malta::Max_CPUs);
- //SERIALIZE_SCALAR(ipint);
- //SERIALIZE_SCALAR(itint);
- //SERIALIZE_SCALAR(drir);
}
void
-MaltaCChip::unserialize(Checkpoint *cp, const std::string §ion)
+MaltaCChip::unserialize(CheckpointIn &cp)
{
- //UNSERIALIZE_ARRAY(dim, Malta::Max_CPUs);
- //UNSERIALIZE_ARRAY(dir, Malta::Max_CPUs);
- //UNSERIALIZE_SCALAR(ipint);
- //UNSERIALIZE_SCALAR(itint);
- //UNSERIALIZE_SCALAR(drir);
}
MaltaCChip *
projects / gem5.git / blobdiff