CPU & GPU Buffer Sharing With DMA-BUF In Linux 4.6

[phoronix]

Phoronix: CPU & GPU Buffer Sharing With DMA-BUF In Linux 4.6

Intel's Tiago Vignatti has written a blog post about sharing CPU and GPU buffers on Linux using a new API introduced by DMA_BUF with the Linux 4.6 kernel...

http://www.phoronix.com/scan.php?pag...Buffer-Sharing

[Luke]

This sort of thing could make a MAJOR difference in the performance of GPU accelerated applications liked Kdenlive with Movit enabled if properly used. Will this work with discrete GPUs or only with onboard graphics? I DO know that in Windows GPUs are normally able to access system ram when all their own is full, with a slowdown to the speed of the PCI-e bus but still not as bad as a copy job is now.