Messages in this thread | | | Subject | Re: [RFC] generic device DMA implementation | Date | Wed, 04 Dec 2002 21:06:37 -0600 | From | James Bottomley <> |
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miles@lsi.nec.co.jp said: > My thinking was that a driver might want to do things like -- > if (dma_addr_is_consistent (some_funky_addr)) { > do it quickly; > } else > do_it_the_slow_way (some_funky_addr); > in other words, something besides just calling the sync functions, in > the case where the memory was consistent.
Actually, I did code an api for that case, it's the dma_get_conformance() one which tells you the consistency type of memory that you actually got, so if you really need to tell the difference, you can.
James
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