Messages in this thread | | | Date | Tue, 15 Mar 2016 23:24:22 +0100 | From | "Luis R. Rodriguez" <> | Subject | Re: [PATCH v2] x86: PAT: Documentation: rewrite "MTRR effects on PAT / non-PAT systems" |
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On Sat, Mar 05, 2016 at 12:52:55PM +0100, Ingo Molnar wrote: > > * Luis R. Rodriguez <mcgrof@kernel.org> wrote: > > > The current documentation refers to using set_memory_wc() as a > > possible hole strategy when you have overlapping ioremap() regions, > > The whole explanation should talk about virtual aliases over the same physical > address, not some 'overlapping regions'. > > I see where this talk about 'overlap' comes: the memtype rbtree in > arch/x86/mm/pat_rbtree.c indeed has memtype ranges that may overlap on the > physical side. But it is highly confusing to call this 'overlapping' on the driver > API documentation level without making it really clear what it's about.
Alright thanks, I think I'll just stick to aliasing. I'll go over the threads and pick out only what is relevant.
Luis
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