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-rw-r--r--src/mem/ruby/system/RubyPort.cc140
1 files changed, 54 insertions, 86 deletions
diff --git a/src/mem/ruby/system/RubyPort.cc b/src/mem/ruby/system/RubyPort.cc
index 480c13ad8..87a98185c 100644
--- a/src/mem/ruby/system/RubyPort.cc
+++ b/src/mem/ruby/system/RubyPort.cc
@@ -1,4 +1,3 @@
-
/*
* Copyright (c) 2009 Advanced Micro Devices, Inc.
* All rights reserved.
@@ -27,10 +26,10 @@
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
+#include "cpu/rubytest/RubyTester.hh"
#include "mem/physical.hh"
-#include "mem/ruby/system/RubyPort.hh"
#include "mem/ruby/slicc_interface/AbstractController.hh"
-#include "cpu/rubytest/RubyTester.hh"
+#include "mem/ruby/system/RubyPort.hh"
RubyPort::RubyPort(const Params *p)
: MemObject(p)
@@ -39,7 +38,7 @@ RubyPort::RubyPort(const Params *p)
assert(m_version != -1);
physmem = p->physmem;
-
+
m_controller = NULL;
m_mandatory_q_ptr = NULL;
@@ -48,7 +47,8 @@ RubyPort::RubyPort(const Params *p)
physMemPort = NULL;
}
-void RubyPort::init()
+void
+RubyPort::init()
{
assert(m_controller != NULL);
m_mandatory_q_ptr = m_controller->getMandatoryQueue();
@@ -59,38 +59,38 @@ RubyPort::getPort(const std::string &if_name, int idx)
{
if (if_name == "port") {
return new M5Port(csprintf("%s-port%d", name(), idx), this);
- } else if (if_name == "pio_port") {
- //
+ }
+
+ if (if_name == "pio_port") {
// ensure there is only one pio port
- //
assert(pio_port == NULL);
- pio_port = new PioPort(csprintf("%s-pio-port%d", name(), idx),
- this);
+ pio_port = new PioPort(csprintf("%s-pio-port%d", name(), idx), this);
return pio_port;
- } else if (if_name == "physMemPort") {
- //
+ }
+
+ if (if_name == "physMemPort") {
// RubyPort should only have one port to physical memory
- //
assert (physMemPort == NULL);
- physMemPort = new M5Port(csprintf("%s-physMemPort", name()),
- this);
-
+ physMemPort = new M5Port(csprintf("%s-physMemPort", name()), this);
+
return physMemPort;
- } else if (if_name == "functional") {
- //
- // Calls for the functional port only want to access functional memory.
- // Therefore, directly pass these calls ports to physmem.
- //
+ }
+
+ if (if_name == "functional") {
+ // Calls for the functional port only want to access
+ // functional memory. Therefore, directly pass these calls
+ // ports to physmem.
assert(physmem != NULL);
return physmem->getPort(if_name, idx);
}
+
return NULL;
}
-RubyPort::PioPort::PioPort(const std::string &_name,
+RubyPort::PioPort::PioPort(const std::string &_name,
RubyPort *_port)
: SimpleTimingPort(_name, _port)
{
@@ -98,7 +98,7 @@ RubyPort::PioPort::PioPort(const std::string &_name,
ruby_port = _port;
}
-RubyPort::M5Port::M5Port(const std::string &_name,
+RubyPort::M5Port::M5Port(const std::string &_name,
RubyPort *_port)
: SimpleTimingPort(_name, _port)
{
@@ -113,7 +113,6 @@ RubyPort::PioPort::recvAtomic(PacketPtr pkt)
return 0;
}
-
Tick
RubyPort::M5Port::recvAtomic(PacketPtr pkt)
{
@@ -125,48 +124,39 @@ RubyPort::M5Port::recvAtomic(PacketPtr pkt)
bool
RubyPort::PioPort::recvTiming(PacketPtr pkt)
{
- //
- // In FS mode, ruby memory will receive pio responses from devices and
- // it must forward these responses back to the particular CPU.
- //
- DPRINTF(MemoryAccess,
- "Pio response for address %#x\n",
- pkt->getAddr());
+ // In FS mode, ruby memory will receive pio responses from devices
+ // and it must forward these responses back to the particular CPU.
+ DPRINTF(MemoryAccess, "Pio response for address %#x\n", pkt->getAddr());
assert(pkt->isResponse());
- //
// First we must retrieve the request port from the sender State
- //
- RubyPort::SenderState *senderState =
+ RubyPort::SenderState *senderState =
safe_cast<RubyPort::SenderState *>(pkt->senderState);
M5Port *port = senderState->port;
assert(port != NULL);
-
+
// pop the sender state from the packet
pkt->senderState = senderState->saved;
delete senderState;
-
+
port->sendTiming(pkt);
-
+
return true;
}
bool
RubyPort::M5Port::recvTiming(PacketPtr pkt)
{
- DPRINTF(MemoryAccess,
- "Timing access caught for address %#x\n",
- pkt->getAddr());
+ DPRINTF(MemoryAccess,
+ "Timing access caught for address %#x\n", pkt->getAddr());
//dsm: based on SimpleTimingPort::recvTiming(pkt);
- //
- // The received packets should only be M5 requests, which should never
- // get nacked. There used to be code to hanldle nacks here, but
- // I'm pretty sure it didn't work correctly with the drain code,
+ // The received packets should only be M5 requests, which should never
+ // get nacked. There used to be code to hanldle nacks here, but
+ // I'm pretty sure it didn't work correctly with the drain code,
// so that would need to be fixed if we ever added it back.
- //
assert(pkt->isRequest());
if (pkt->memInhibitAsserted()) {
@@ -177,34 +167,26 @@ RubyPort::M5Port::recvTiming(PacketPtr pkt)
return true;
}
- //
// Save the port in the sender state object to be used later to
// route the response
- //
pkt->senderState = new SenderState(this, pkt->senderState);
- //
// Check for pio requests and directly send them to the dedicated
// pio port.
- //
if (!isPhysMemAddress(pkt->getAddr())) {
assert(ruby_port->pio_port != NULL);
- DPRINTF(MemoryAccess,
+ DPRINTF(MemoryAccess,
"Request for address 0x%#x is assumed to be a pio request\n",
pkt->getAddr());
return ruby_port->pio_port->sendTiming(pkt);
}
- //
// For DMA and CPU requests, translate them to ruby requests before
// sending them to our assigned ruby port.
- //
RubyRequestType type = RubyRequestType_NULL;
- //
// If valid, copy the pc to the ruby request
- //
Addr pc = 0;
if (pkt->req->hasPC()) {
pc = pkt->req->getPC();
@@ -224,47 +206,38 @@ RubyPort::M5Port::recvTiming(PacketPtr pkt)
if (pkt->req->isInstFetch()) {
type = RubyRequestType_IFETCH;
} else {
- type = RubyRequestType_LD;
+ type = RubyRequestType_LD;
}
} else if (pkt->isWrite()) {
type = RubyRequestType_ST;
} else if (pkt->isReadWrite()) {
- //
- // Fix me. This conditional will never be executed because
- // isReadWrite() is just an OR of isRead() and isWrite().
- // Furthermore, just because the packet is a read/write request does
- // not necessary mean it is a read-modify-write atomic operation.
- //
+ // Fix me. This conditional will never be executed
+ // because isReadWrite() is just an OR of isRead() and
+ // isWrite(). Furthermore, just because the packet is a
+ // read/write request does not necessary mean it is a
+ // read-modify-write atomic operation.
type = RubyRequestType_RMW_Write;
} else {
panic("Unsupported ruby packet type\n");
}
}
- RubyRequest ruby_request(pkt->getAddr(),
- pkt->getPtr<uint8_t>(),
- pkt->getSize(),
- pc,
- type,
- RubyAccessMode_Supervisor,
- pkt);
+ RubyRequest ruby_request(pkt->getAddr(), pkt->getPtr<uint8_t>(),
+ pkt->getSize(), pc, type,
+ RubyAccessMode_Supervisor, pkt);
// Submit the ruby request
RequestStatus requestStatus = ruby_port->makeRequest(ruby_request);
- //
// If the request successfully issued or the SC request completed because
// exclusive permission was lost, then we should return true.
// Otherwise, we need to delete the senderStatus we just created and return
// false.
- //
if ((requestStatus == RequestStatus_Issued) ||
(requestStatus == RequestStatus_LlscFailed)) {
- //
// The communicate to M5 whether the SC command succeeded by seting the
// packet's extra data.
- //
if (pkt->isLLSC() && pkt->isWrite()) {
if (requestStatus == RequestStatus_LlscFailed) {
DPRINTF(MemoryAccess, "SC failed and request completed\n");
@@ -276,11 +249,10 @@ RubyPort::M5Port::recvTiming(PacketPtr pkt)
return true;
}
- DPRINTF(MemoryAccess,
+ DPRINTF(MemoryAccess,
"Request for address #x did not issue because %s\n",
- pkt->getAddr(),
- RequestStatus_to_string(requestStatus));
-
+ pkt->getAddr(), RequestStatus_to_string(requestStatus));
+
SenderState* senderState = safe_cast<SenderState*>(pkt->senderState);
pkt->senderState = senderState->saved;
delete senderState;
@@ -290,14 +262,12 @@ RubyPort::M5Port::recvTiming(PacketPtr pkt)
void
RubyPort::ruby_hit_callback(PacketPtr pkt)
{
- //
// Retrieve the request port from the sender State
- //
- RubyPort::SenderState *senderState =
+ RubyPort::SenderState *senderState =
safe_cast<RubyPort::SenderState *>(pkt->senderState);
M5Port *port = senderState->port;
assert(port != NULL);
-
+
// pop the sender state from the packet
pkt->senderState = senderState->saved;
delete senderState;
@@ -308,11 +278,9 @@ RubyPort::ruby_hit_callback(PacketPtr pkt)
void
RubyPort::M5Port::hitCallback(PacketPtr pkt)
{
-
bool needsResponse = pkt->needsResponse();
- DPRINTF(MemoryAccess, "Hit callback needs response %d\n",
- needsResponse);
+ DPRINTF(MemoryAccess, "Hit callback needs response %d\n", needsResponse);
ruby_port->physMemPort->sendAtomic(pkt);
@@ -349,9 +317,9 @@ RubyPort::M5Port::isPhysMemAddress(Addr addr)
AddrRangeList physMemAddrList;
bool snoop = false;
ruby_port->physMemPort->getPeerAddressRanges(physMemAddrList, snoop);
- for(AddrRangeIter iter = physMemAddrList.begin();
- iter != physMemAddrList.end();
- iter++) {
+ for (AddrRangeIter iter = physMemAddrList.begin();
+ iter != physMemAddrList.end();
+ iter++) {
if (addr >= iter->start && addr <= iter->end) {
DPRINTF(MemoryAccess, "Request found in %#llx - %#llx range\n",
iter->start, iter->end);
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-16 18:12:02 +0000