On Tue, Mar 05, 2019 at 12:54:28PM -0800, John Stultz wrote: > Here is a initial RFC of the dma-buf heaps patchset Andrew and I > have been working on which tries to destage a fair chunk of ION > functionality. > > The patchset implements per-heap devices which can be opened > directly and then an ioctl is used to allocate a dmabuf from the > heap. > > The interface is similar, but much simpler then IONs, only > providing an ALLOC ioctl. > > Also, I've provided simple system and cma heaps. The system > heap in particular is missing the page-pool optimizations ION > had, but works well enough to validate the interface. > > I've booted and tested these patches with AOSP on the HiKey960 > using the kernel tree here: > > https://git.linaro.org/people/john.stultz/android-dev.git/log/?h=dev/dma-buf-heap > > And the userspace changes here: > https://android-review.googlesource.com/c/device/linaro/hikey/+/909436
What upstream driver will use this eventualy ? And why is it needed ? Cheers, Jérôme _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
