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authorAndreas Hansson <andreas.hansson@arm.com>2015-12-31 09:32:58 -0500
committerAndreas Hansson <andreas.hansson@arm.com>2015-12-31 09:32:58 -0500
commit0fcb376e5fc6bc0a7b16dc4595d4a7e3f910cbc8 (patch)
tree4be665e3596d9d4e193e6354c5577ee0077732da /src/mem/addr_mapper.cc
parenta3177645773b8eb4b835050c395554d3e2b4664a (diff)
downloadgem5-0fcb376e5fc6bc0a7b16dc4595d4a7e3f910cbc8.tar.xz
mem: Make cache terminology easier to understand
This patch changes the name of a bunch of packet flags and MSHR member functions and variables to make the coherency protocol easier to understand. In addition the patch adds and updates lots of descriptions, explicitly spelling out assumptions. The following name changes are made: * the packet memInhibit flag is renamed to cacheResponding * the packet sharedAsserted flag is renamed to hasSharers * the packet NeedsExclusive attribute is renamed to NeedsWritable * the packet isSupplyExclusive is renamed responderHadWritable * the MSHR pendingDirty is renamed to pendingModified The cache states, Modified, Owned, Exclusive, Shared are also called out in the cache and MSHR code to make it easier to understand.
Diffstat (limited to 'src/mem/addr_mapper.cc')
-rw-r--r--src/mem/addr_mapper.cc7
1 files changed, 3 insertions, 4 deletions
diff --git a/src/mem/addr_mapper.cc b/src/mem/addr_mapper.cc
index 2f0020576..546dd6906 100644
--- a/src/mem/addr_mapper.cc
+++ b/src/mem/addr_mapper.cc
@@ -116,16 +116,15 @@ AddrMapper::recvTimingReq(PacketPtr pkt)
{
Addr orig_addr = pkt->getAddr();
bool needsResponse = pkt->needsResponse();
- bool memInhibitAsserted = pkt->memInhibitAsserted();
+ bool cacheResponding = pkt->cacheResponding();
- if (needsResponse && !memInhibitAsserted) {
+ if (needsResponse && !cacheResponding) {
pkt->pushSenderState(new AddrMapperSenderState(orig_addr));
}
pkt->setAddr(remapAddr(orig_addr));
- // Attempt to send the packet (always succeeds for inhibited
- // packets)
+ // Attempt to send the packet
bool successful = masterPort.sendTimingReq(pkt);
// If not successful, restore the address and sender state