diff options
Diffstat (limited to 'src/mem/packet.hh')
| -rw-r--r-- | src/mem/packet.hh | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/src/mem/packet.hh b/src/mem/packet.hh index 330e2ae5e..325cd3a60 100644 --- a/src/mem/packet.hh +++ b/src/mem/packet.hh @@ -253,7 +253,7 @@ class Packet : public Printable enum : FlagsType { // Flags to transfer across when copying a packet - COPY_FLAGS = 0x0000000F, + COPY_FLAGS = 0x0000001F, // Does this packet have sharers (which means it should not be // considered writable) or not. See setHasSharers below. @@ -272,6 +272,10 @@ class Packet : public Printable // responding to a snoop. See setCacheResponding below. CACHE_RESPONDING = 0x00000008, + // The writeback/writeclean should be propagated further + // downstream by the receiver + WRITE_THROUGH = 0x00000010, + /// Are the 'addr' and 'size' fields valid? VALID_ADDR = 0x00000100, VALID_SIZE = 0x00000200, @@ -619,6 +623,19 @@ class Packet : public Printable bool responderHadWritable() const { return flags.isSet(RESPONDER_HAD_WRITABLE); } + /** + * A writeback/writeclean cmd gets propagated further downstream + * by the receiver when the flag is set. + */ + void setWriteThrough() + { + assert(cmd.isWrite() && + (cmd.isEviction() || cmd == MemCmd::WriteClean)); + flags.set(WRITE_THROUGH); + } + void clearWriteThrough() { flags.clear(WRITE_THROUGH); } + bool writeThrough() const { return flags.isSet(WRITE_THROUGH); } + void setSuppressFuncError() { flags.set(SUPPRESS_FUNC_ERROR); } bool suppressFuncError() const { return flags.isSet(SUPPRESS_FUNC_ERROR); } void setBlockCached() { flags.set(BLOCK_CACHED); } |