On Wed, Dec 21, 2011 at 10:57 PM, Arnd Bergmann <arnd at 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: >> > 1) only exporter can mmap to userspace >> > 2) 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? 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. > BR, ~Sumit.
