1. A computer system, comprising: first storage to store a cache ratio indicator indicative of a ratio of a capacity of a large cache to a capacity of a core cache; a processor, comprising: a processing core including a core cache; a large cache; and a cache controller, including: a core eviction unit to respond to an eviction of a clean and valid cache line from the core cache by performing an operation selected, based on a value of the cache ratio indicator, from: an inclusive eviction operation comprising: silently dropping the cache line from the core cache; and a non-inclusive eviction operation comprising: updating the large cache to include the cache line; an M-state unit to respond to a core cache miss of a targeted line, valid and modified line in the large cache, by performing an operation selected, based on a value of the cache ratio indicator, from: a first inclusive modified operation comprising: allocating a core cache line to store the targeted line in an exclusive state and filling the core cache line from line in the large cache; and a first non-inclusive modified operation comprising: allocating a core cache line to store the targeted line in a modified state, forwarding the line in the large cache to core cache, and invalidating the line in the large cache.