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cache. With secondary cache, the CPU will detect cache coherency errors and the Virtual Coherency Exception handler will flush the appropriate cache lines to maintain cache coherency. This allows much better performance than inhibiting the cache for the entire page. This is very noticable when shared library mappings occur with incompatible mappings, since there's a very likely chance the mappings will remain for long periods of time. Systems without secondary cache will still have the cache inhibited, so there will still be performance issues if shared libraries don't get mmaped() on correct memory alignments. This fixes the current problems on DECstations using the R4x00 getting coredumped programs. |
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| Makefile | ||
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