diff options
Diffstat (limited to 'src/mem/request.hh')
| -rw-r--r-- | src/mem/request.hh | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/src/mem/request.hh b/src/mem/request.hh index aff13075b..6fc98506c 100644 --- a/src/mem/request.hh +++ b/src/mem/request.hh @@ -1,5 +1,5 @@ /* - * Copyright (c) 2012-2013 ARM Limited + * Copyright (c) 2012-2013,2017 ARM Limited * All rights reserved * * The license below extends only to copyright in the software and shall @@ -87,7 +87,7 @@ typedef uint16_t MasterID; class Request { public: - typedef uint32_t FlagsType; + typedef uint64_t FlagsType; typedef uint8_t ArchFlagsType; typedef ::Flags<FlagsType> Flags; @@ -182,6 +182,15 @@ class Request /** The request is a page table walk */ PT_WALK = 0x20000000, + /** The request targets the point of unification */ + DST_POU = 0x0000001000000000, + + /** The request targets the point of coherence */ + DST_POC = 0x0000002000000000, + + /** Bits to define the destination of a request */ + DST_BITS = 0x0000003000000000, + /** * These flags are *not* cleared when a Request object is * reused (assigned a new address). @@ -790,6 +799,17 @@ class Request } /** + * Accessor functions for the destination of a memory request. The + * destination flag can specify a point of reference for the + * operation (e.g. a cache block clean to the the point of + * unification). At the moment the destination is only used by the + * cache maintenance operations. + */ + bool isToPOU() const { return _flags.isSet(DST_POU); } + bool isToPOC() const { return _flags.isSet(DST_POC); } + Flags getDest() const { return _flags & DST_BITS; } + + /** * Accessor functions for the memory space configuration flags and used by * GPU ISAs such as the Heterogeneous System Architecture (HSA). Note that * these are for testing only; setting extraFlags should be done via |