diff options
Diffstat (limited to 'src/mem/packet.hh')
| -rw-r--r-- | src/mem/packet.hh | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/src/mem/packet.hh b/src/mem/packet.hh index fcdd73a03..88829d358 100644 --- a/src/mem/packet.hh +++ b/src/mem/packet.hh @@ -42,6 +42,7 @@ * Steve Reinhardt * Ali Saidi * Andreas Hansson + * Nikos Nikoleris */ /** @@ -259,7 +260,7 @@ class Packet : public Printable enum : FlagsType { // Flags to transfer across when copying a packet - COPY_FLAGS = 0x0000001F, + COPY_FLAGS = 0x0000003F, // Does this packet have sharers (which means it should not be // considered writable) or not. See setHasSharers below. @@ -282,6 +283,10 @@ class Packet : public Printable // downstream by the receiver WRITE_THROUGH = 0x00000010, + // Response co-ordination flag for cache maintenance + // operations + SATISFIED = 0x00000020, + /// Are the 'addr' and 'size' fields valid? VALID_ADDR = 0x00000100, VALID_SIZE = 0x00000200, @@ -643,6 +648,19 @@ class Packet : public Printable void clearWriteThrough() { flags.clear(WRITE_THROUGH); } bool writeThrough() const { return flags.isSet(WRITE_THROUGH); } + /** + * Set when a request hits in a cache and the cache is not going + * to respond. This is used by the crossbar to coordinate + * responses for cache maintenance operations. + */ + void setSatisfied() + { + assert(cmd.isClean()); + assert(!flags.isSet(SATISFIED)); + flags.set(SATISFIED); + } + bool satisfied() const { return flags.isSet(SATISFIED); } + void setSuppressFuncError() { flags.set(SUPPRESS_FUNC_ERROR); } bool suppressFuncError() const { return flags.isSet(SUPPRESS_FUNC_ERROR); } void setBlockCached() { flags.set(BLOCK_CACHED); } |