US 11,954,033 B1
Page rinsing scheme to keep a directory page in an exclusive state in a single complex
Ganesh Balakrishnan, Austin, TX (US); Amit Apte, Austin, TX (US); Ann Ling, Santa Clara, CA (US); and Vydhyanathan Kalyanasundharam, Santa Clara, CA (US)
Assigned to Advanced Micro Devices, Inc., Santa Clara, CA (US)
Filed by Advanced Micro Devices, Inc., Santa Clara, CA (US)
Filed on Oct. 19, 2022, as Appl. No. 17/957,823.
Int. Cl. G06F 12/0815 (2016.01)
CPC G06F 12/0815 (2013.01) 20 Claims
OG exemplary drawing
 
18. A system, comprising:
a set of processor core complexes;
a cache directory coupled with the set of processor core complexes and configured to store an entry associating a memory region with an exclusive coherency state; and
a controller device coupled with the cache directory and configured to, in response to a memory access directed to the memory region, transmit a demote superprobe to convert at least one cache line associated with the memory region from an exclusive coherency state to a shared coherency state.