[Intel-gfx] [PATCH] dma-buf: Update docs for SYNC ioctl

Daniel Vetter daniel.vetter at ffwll.ch
Mon Mar 21 07:50:48 UTC 2016

On Mon, Mar 21, 2016 at 8:40 AM, Hans Verkuil <hverkuil at xs4all.nl> wrote:
>> +    For correctness and optimal performance, it is always required to use
>> +    SYNC_START and SYNC_END before and after, respectively, when accessing the
>> +    mapped address. Userspace cannot on coherent access, even when there are
> "Userspace cannot on coherent access"? Do you mean "cannot do"? Sorry, the
> meaning isn't clear to me.

"cannot rely on". I'll send out v2 asap (and let's hope the coffee
works this time around).
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch

More information about the Intel-gfx mailing list