Daniel Carvalho has uploaded this change for review. (
https://gem5-review.googlesource.com/c/public/gem5/+/17536
Change subject: mem: Allow packet to provide its own addr range
......................................................................
mem: Allow packet to provide its own addr range
Add a getter to Packet to allow it to provide its own addr
range.
Change-Id: I2128ea3b71906502d10d9376b050a62407defd23
Signed-off-by: Daniel R. Carvalho <[email protected]>
---
M src/mem/abstract_mem.cc
M src/mem/coherent_xbar.cc
M src/mem/noncoherent_xbar.cc
M src/mem/packet.cc
M src/mem/packet.hh
M src/mem/physical.cc
6 files changed, 25 insertions(+), 22 deletions(-)
diff --git a/src/mem/abstract_mem.cc b/src/mem/abstract_mem.cc
index 581fc14..3dc19d0 100644
--- a/src/mem/abstract_mem.cc
+++ b/src/mem/abstract_mem.cc
@@ -329,8 +329,7 @@
return;
}
- assert(AddrRange(pkt->getAddr(),
- pkt->getAddr() + (pkt->getSize() -
1)).isSubset(range));
+ assert(pkt->getAddrRange().isSubset(range));
uint8_t *hostAddr = pmemAddr + pkt->getAddr() - range.start();
@@ -420,8 +419,7 @@
void
AbstractMemory::functionalAccess(PacketPtr pkt)
{
- assert(AddrRange(pkt->getAddr(),
- pkt->getAddr() + pkt->getSize() - 1).isSubset(range));
+ assert(pkt->getAddrRange().isSubset(range));
uint8_t *hostAddr = pmemAddr + pkt->getAddr() - range.start();
diff --git a/src/mem/coherent_xbar.cc b/src/mem/coherent_xbar.cc
index 2bee5bc..4a69570 100644
--- a/src/mem/coherent_xbar.cc
+++ b/src/mem/coherent_xbar.cc
@@ -152,8 +152,7 @@
assert(is_express_snoop == cache_responding);
// determine the destination based on the destination address range
- AddrRange addr_range = RangeSize(pkt->getAddr(), pkt->getSize());
- PortID master_port_id = findPort(addr_range);
+ PortID master_port_id = findPort(pkt->getAddrRange());
// test if the crossbar should be considered occupied for the current
// port, and exclude express snoops from the check
@@ -552,9 +551,7 @@
// device responsible for the address range something is
// wrong, hence there is nothing further to do as the packet
// would be going back to where it came from
- AddrRange addr_range M5_VAR_USED =
- RangeSize(pkt->getAddr(), pkt->getSize());
- assert(findPort(addr_range) == master_port_id);
+ assert(findPort(pkt->getAddrRange()) == master_port_id);
}
bool
@@ -784,8 +781,7 @@
// even if we had a snoop response, we must continue and also
// perform the actual request at the destination
- AddrRange addr_range = RangeSize(pkt->getAddr(), pkt->getSize());
- PortID master_port_id = findPort(addr_range);
+ PortID master_port_id = findPort(pkt->getAddrRange());
if (sink_packet) {
DPRINTF(CoherentXBar, "%s: Not forwarding %s\n", __func__,
@@ -1009,7 +1005,7 @@
}
}
- PortID dest_id = findPort(RangeSize(pkt->getAddr(),
pkt->getSize()));
+ PortID dest_id = findPort(pkt->getAddrRange());
masterPorts[dest_id]->sendFunctional(pkt);
}
diff --git a/src/mem/noncoherent_xbar.cc b/src/mem/noncoherent_xbar.cc
index b0fe205..0f4b720 100644
--- a/src/mem/noncoherent_xbar.cc
+++ b/src/mem/noncoherent_xbar.cc
@@ -108,8 +108,7 @@
assert(!pkt->isExpressSnoop());
// determine the destination based on the address
- AddrRange addr_range = RangeSize(pkt->getAddr(), pkt->getSize());
- PortID master_port_id = findPort(addr_range);
+ PortID master_port_id = findPort(pkt->getAddrRange());
// test if the layer should be considered occupied for the current
// port
@@ -254,8 +253,7 @@
unsigned int pkt_cmd = pkt->cmdToIndex();
// determine the destination port
- AddrRange addr_range = RangeSize(pkt->getAddr(), pkt->getSize());
- PortID master_port_id = findPort(addr_range);
+ PortID master_port_id = findPort(pkt->getAddrRange());
// stats updates for the request
pktCount[slave_port_id][master_port_id]++;
@@ -305,8 +303,7 @@
}
// determine the destination port
- AddrRange addr_range = RangeSize(pkt->getAddr(), pkt->getSize());
- PortID dest_id = findPort(addr_range);
+ PortID dest_id = findPort(pkt->getAddrRange());
// forward the request to the appropriate destination
masterPorts[dest_id]->sendFunctional(pkt);
diff --git a/src/mem/packet.cc b/src/mem/packet.cc
index 07c0578..3c4ef25 100644
--- a/src/mem/packet.cc
+++ b/src/mem/packet.cc
@@ -227,6 +227,12 @@
InvalidCmd, "InvalidateResp" }
};
+AddrRange
+Packet::getAddrRange() const
+{
+ return RangeSize(getAddr(), getSize());
+}
+
bool
Packet::trySatisfyFunctional(Printable *obj, Addr addr, bool is_secure,
int size,
uint8_t *_data)
diff --git a/src/mem/packet.hh b/src/mem/packet.hh
index ca13d46..724055f 100644
--- a/src/mem/packet.hh
+++ b/src/mem/packet.hh
@@ -57,6 +57,7 @@
#include <cassert>
#include <list>
+#include "base/addr_range.hh"
#include "base/cast.hh"
#include "base/compiler.hh"
#include "base/flags.hh"
@@ -736,6 +737,13 @@
unsigned getSize() const { assert(flags.isSet(VALID_SIZE)); return
size; }
+ /**
+ * Get address range to which this packet belongs.
+ *
+ * @return Address range of this packet.
+ */
+ AddrRange getAddrRange() const;
+
Addr getOffset(unsigned int blk_size) const
{
return getAddr() & Addr(blk_size - 1);
diff --git a/src/mem/physical.cc b/src/mem/physical.cc
index 2806204..afe5f7a 100644
--- a/src/mem/physical.cc
+++ b/src/mem/physical.cc
@@ -278,8 +278,7 @@
PhysicalMemory::access(PacketPtr pkt)
{
assert(pkt->isRequest());
- AddrRange addr_range = RangeSize(pkt->getAddr(), pkt->getSize());
- const auto& m = addrMap.contains(addr_range);
+ const auto& m = addrMap.contains(pkt->getAddrRange());
assert(m != addrMap.end());
m->second->access(pkt);
}
@@ -288,8 +287,7 @@
PhysicalMemory::functionalAccess(PacketPtr pkt)
{
assert(pkt->isRequest());
- AddrRange addr_range = RangeSize(pkt->getAddr(), pkt->getSize());
- const auto& m = addrMap.contains(addr_range);
+ const auto& m = addrMap.contains(pkt->getAddrRange());
assert(m != addrMap.end());
m->second->functionalAccess(pkt);
}
--
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Gerrit-Project: public/gem5
Gerrit-Branch: master
Gerrit-Change-Id: I2128ea3b71906502d10d9376b050a62407defd23
Gerrit-Change-Number: 17536
Gerrit-PatchSet: 1
Gerrit-Owner: Daniel Carvalho <[email protected]>
Gerrit-MessageType: newchange
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