[PATCH 1/6] fence: dma-buf cross-device synchronization (v17)

2014-02-24 Thread Maarten Lankhorst
A fence can be attached to a buffer which is being filled or consumed by hw, to allow userspace to pass the buffer without waiting to another device. For example, userspace can call page_flip ioctl to display the next frame of graphics after kicking the GPU but while the GPU is still rendering. T

Re: [PATCH 1/6] fence: dma-buf cross-device synchronization (v17)

2014-02-17 Thread Rob Clark
On Mon, Feb 17, 2014 at 10:55 AM, Maarten Lankhorst wrote: > A fence can be attached to a buffer which is being filled or consumed > by hw, to allow userspace to pass the buffer without waiting to another > device. For example, userspace can call page_flip ioctl to display the > next frame of gra

[PATCH 1/6] fence: dma-buf cross-device synchronization (v17)

2014-02-17 Thread Maarten Lankhorst
A fence can be attached to a buffer which is being filled or consumed by hw, to allow userspace to pass the buffer without waiting to another device. For example, userspace can call page_flip ioctl to display the next frame of graphics after kicking the GPU but while the GPU is still rendering. T