On Fri, Apr 06, 2018 at 02:24:46PM +0200, Christian König wrote:
> Am 06.04.2018 um 11:33 schrieb Gerd Hoffmann:
> >Hi,
> >
> > > The pages backing a DMA-buf are not allowed to move (at least not without
> > > a
> > > patch set I'm currently working on), but for certain MM operations to work
Am 06.04.2018 um 11:33 schrieb Gerd Hoffmann:
Hi,
The pages backing a DMA-buf are not allowed to move (at least not without a
patch set I'm currently working on), but for certain MM operations to work
correctly you must be able to modify the page tables entries and move the
pages backing
Hi,
> The pages backing a DMA-buf are not allowed to move (at least not without a
> patch set I'm currently working on), but for certain MM operations to work
> correctly you must be able to modify the page tables entries and move the
> pages backing them around.
>
> For example try to use
Am 16.03.2018 um 08:46 schrieb Gerd Hoffmann:
A driver to let userspace turn iovecs into dma-bufs.
Use case: Allows qemu create dmabufs for the vga framebuffer or
virtio-gpu ressources. Then they can be passed around to display
those guest things on the host. To spice client for classic full
On Fri, Mar 16, 2018 at 08:46:49AM +0100, Gerd Hoffmann wrote:
> --- /dev/null
> +++ b/tools/testing/selftests/drivers/dma-buf/udmabuf.c
> @@ -0,0 +1,69 @@
> +#include
> +#include
> +#include
> +#include
> +#include
> +#include
> +#include
No license text at all? Come on, I already made
On Fri, Mar 16, 2018 at 08:46:49AM +0100, Gerd Hoffmann wrote:
> --- /dev/null
> +++ b/drivers/dma-buf/udmabuf.c
> @@ -0,0 +1,261 @@
> +/*
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + *