diff options
Diffstat (limited to 'src/mem/protocol/MESI_CMP_directory-dir.sm')
| -rw-r--r-- | src/mem/protocol/MESI_CMP_directory-dir.sm | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/src/mem/protocol/MESI_CMP_directory-dir.sm b/src/mem/protocol/MESI_CMP_directory-dir.sm index 6e3e79641..423272905 100644 --- a/src/mem/protocol/MESI_CMP_directory-dir.sm +++ b/src/mem/protocol/MESI_CMP_directory-dir.sm @@ -55,7 +55,7 @@ machine(Directory, "MESI_CMP_filter_directory protocol") ID, AccessPermission:Busy, desc="Intermediate state for DMA_READ when in I"; ID_W, AccessPermission:Busy, desc="Intermediate state for DMA_WRITE when in I"; - M, AccessPermission:Invalid, desc="memory copy may be stale, i.e. other modified copies may exist"; + M, AccessPermission:Maybe_Stale, desc="memory copy may be stale, i.e. other modified copies may exist"; IM, AccessPermission:Busy, desc="Intermediate State I>M"; MI, AccessPermission:Busy, desc="Intermediate State M>I"; M_DRD, AccessPermission:Busy, desc="Intermediate State when there is a dma read"; @@ -147,10 +147,21 @@ machine(Directory, "MESI_CMP_filter_directory protocol") AccessPermission getAccessPermission(Address addr) { TBE tbe := TBEs[addr]; if(is_valid(tbe)) { + DPRINTF(RubySlicc, "%s\n", Directory_State_to_permission(tbe.TBEState)); return Directory_State_to_permission(tbe.TBEState); } - return Directory_State_to_permission(getDirectoryEntry(addr).DirectoryState); + if(directory.isPresent(addr)) { + DPRINTF(RubySlicc, "%s\n", Directory_State_to_permission(getDirectoryEntry(addr).DirectoryState)); + return Directory_State_to_permission(getDirectoryEntry(addr).DirectoryState); + } + + DPRINTF(RubySlicc, "%s\n", AccessPermission:NotPresent); + return AccessPermission:NotPresent; + } + + DataBlock getDataBlock(Address addr), return_by_ref="yes" { + return getDirectoryEntry(addr).DataBlk; } void setAccessPermission(Address addr, State state) { |