[PATCH v2 2/9] fence: dma-buf cross-device synchronization (v18)

2014-07-01 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.

[PATCH v2 2/9] fence: dma-buf cross-device synchronization (v18)

2014-07-01 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.