Canceling prefetch of cache blocks based on an address and a bit field

A method comprising:

• receiving, by a cache, a prefetch message to generate a prefetch of one or more cache blocks of a group of cache blocks;
• and
• receiving, by the cache, a cancel message that causes canceling the prefetch of the one or more cache blocks of the group of cache blocks, the cancel message including an address that indicates the group of cache blocks and a bit field that indicates the cache block of the one or more cache blocks of the group.

A non-transitory computer readable medium comprising a circuit representation that, when processed by a computer, is used to program or manufacture an integrated circuit comprising a cache configured to:

• receive a prefetch message to generate a prefetch of one or more cache blocks of a group of cache blocks;
• and
• receive a cancel message that causes canceling the prefetch of the one or more cache blocks of the group of cache blocks, the cancel message including an address that indicates the group of cache blocks and a bit field that indicates the cache block of the one or more cache blocks of the group.