diff options
Diffstat (limited to 'src/mem/cache/tags/base.hh')
| -rw-r--r-- | src/mem/cache/tags/base.hh | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/src/mem/cache/tags/base.hh b/src/mem/cache/tags/base.hh index dd5426172..4caf6de4e 100644 --- a/src/mem/cache/tags/base.hh +++ b/src/mem/cache/tags/base.hh @@ -67,6 +67,8 @@ class BaseTags : public ClockedObject protected: /** The block size of the cache. */ const unsigned blkSize; + /** Mask out all bits that aren't part of the block offset. */ + const Addr blkMask; /** The size of the cache. */ const unsigned size; /** The tag lookup latency of the cache. */ @@ -187,13 +189,23 @@ class BaseTags : public ClockedObject virtual CacheBlk * findBlock(Addr addr, bool is_secure) const = 0; /** + * Align an address to the block size. + * @param addr the address to align. + * @return The block address. + */ + Addr blkAlign(Addr addr) const + { + return addr & ~blkMask; + } + + /** * Calculate the block offset of an address. * @param addr the address to get the offset of. * @return the block offset. */ int extractBlkOffset(Addr addr) const { - return (addr & (Addr)(blkSize-1)); + return (addr & blkMask); } /** |