Re: [RFC v2 05/11] v4l2-core: Don't sync cache for a buffer if so requested

2017-03-27 Thread Shuah Khan
On Thu, Dec 15, 2016 at 6:24 PM, Laurent Pinchart wrote: > From: Samu Onkalo > > The user may request to the driver (vb2) to skip the cache maintenance > operations in case the buffer does not need cache synchronisation, e.g. in > cases where the buffer is passed between hardware blocks without i

[RFC v2 05/11] v4l2-core: Don't sync cache for a buffer if so requested

2016-12-16 Thread Laurent Pinchart
From: Samu Onkalo The user may request to the driver (vb2) to skip the cache maintenance operations in case the buffer does not need cache synchronisation, e.g. in cases where the buffer is passed between hardware blocks without it being touched by the CPU. Also document that the prepare and fin