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 the
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 fork
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
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
> + * publish
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
framebuffer display, and hopefully some day to w
