23 Dec
2011
23 Dec
'11
5:10 p.m.
On Fri, Dec 23, 2011 at 4:00 AM, Semwal, Sumit sumit.semwal@ti.com wrote:
On Wed, Dec 21, 2011 at 10:57 PM, Arnd Bergmann arnd@arndb.de wrote:
On Tuesday 20 December 2011, Daniel Vetter wrote:
I'm thinking for a first version, we can get enough mileage out of it by saying:
- only exporter can mmap to userspace
- only importers that do not need CPU access to buffer..
Thanks Rob - and the exporter can do the mmap outside of dma-buf usage, right?
Yes
I mean, we don't need to provide an mmap to dma_buf() and restrict it to exporter, when the exporter has more 'control' of the buffer anyways.
No, if it is only for the exporter, it really doesn't need to be in dmabuf (ie. the exporter already knows how he is)
BR, -R
BR, ~Sumit.