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Groups > linux.kernel > #1688701
| From | Christoph Hellwig <hch@lst.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: semantics of dma_map_single() |
| Date | 2017-07-17 08:50 +0200 |
| Message-ID | <u480V-1v7-7@gated-at.bofh.it> (permalink) |
| References | <u3GxH-tD-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
I would expect that it would support any contiguous range in the kernel mapping (e.g. no vmalloc and friends). But it's not documented anywhere, and if no in kernel users makes use of that fact at the moment it might be better to document a page size limitation and add asserts to enforce it.
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semantics of dma_map_single() Vineet Gupta <Vineet.Gupta1@synopsys.com> - 2017-07-16 03:30 +0200
Re: semantics of dma_map_single() Christoph Hellwig <hch@lst.de> - 2017-07-17 08:50 +0200
Re: semantics of dma_map_single() Vineet Gupta <Vineet.Gupta1@synopsys.com> - 2017-07-17 18:10 +0200
Re: semantics of dma_map_single() James Bottomley <James.Bottomley@HansenPartnership.com> - 2017-07-17 18:50 +0200
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