Re: [PATCH v3 1/2] mm/highmem: make kmap cache coloring aware

2014-08-01 Thread Max Filippov
On Sat, Aug 2, 2014 at 12:10 AM, Andrew Morton wrote: > On Fri, 25 Jul 2014 23:43:46 +0400 Max Filippov wrote: > >> VIPT cache with way size larger than MMU page size may suffer from >> aliasing problem: a single physical address accessed via different >> virtual addresses may end up in multiple

Re: [PATCH v3 1/2] mm/highmem: make kmap cache coloring aware

2014-08-01 Thread Andrew Morton
On Fri, 25 Jul 2014 23:43:46 +0400 Max Filippov wrote: > VIPT cache with way size larger than MMU page size may suffer from > aliasing problem: a single physical address accessed via different > virtual addresses may end up in multiple locations in the cache. > Virtual mappings of a physical addr

Re: [PATCH v3 1/2] mm/highmem: make kmap cache coloring aware

2014-08-01 Thread Max Filippov
On Fri, Jul 25, 2014 at 11:43 PM, Max Filippov wrote: > VIPT cache with way size larger than MMU page size may suffer from > aliasing problem: a single physical address accessed via different > virtual addresses may end up in multiple locations in the cache. > Virtual mappings of a physical addres

[PATCH v3 1/2] mm/highmem: make kmap cache coloring aware

2014-07-25 Thread Max Filippov
VIPT cache with way size larger than MMU page size may suffer from aliasing problem: a single physical address accessed via different virtual addresses may end up in multiple locations in the cache. Virtual mappings of a physical address that always get cached in different cache locations are said