similar to: [RFC PATCH] drm/virtio: Export resource handles via DMA-buf API

On Thu, Sep 12, 2019 at 06:41:21PM +0900, Tomasz Figa wrote: > This patch is an early RFC to judge the direction we are following in > our virtualization efforts in Chrome OS. The purpose is to start a > discussion on how to handle buffer sharing between multiple virtio > devices. > > On a side note, we are also working on a virtio video decoder interface > and

On Tue, Oct 08, 2019 at 07:49:39PM +0900, Tomasz Figa wrote: > On Tue, Oct 8, 2019 at 7:03 PM Daniel Vetter <daniel at ffwll.ch> wrote: > > > > On Sat, Oct 05, 2019 at 02:41:54PM +0900, Tomasz Figa wrote: > > > Hi Daniel, Gerd, > > > > > > On Tue, Sep 17, 2019 at 10:23 PM Daniel Vetter <daniel at ffwll.ch> wrote: > > > > > >

On Sat, Oct 05, 2019 at 02:41:54PM +0900, Tomasz Figa wrote: > Hi Daniel, Gerd, > > On Tue, Sep 17, 2019 at 10:23 PM Daniel Vetter <daniel at ffwll.ch> wrote: > > > > On Thu, Sep 12, 2019 at 06:41:21PM +0900, Tomasz Figa wrote: > > > This patch is an early RFC to judge the direction we are following in > > > our virtualization efforts in Chrome OS. The

On Wed, Mar 11, 2020 at 08:20:04PM +0900, David Stevens wrote: > Add support for UUID-based resource sharing mechanism to virtgpu. This > implements the new virtgpu commands and hooks them up to dma-buf's > get_uuid callback. > > Signed-off-by: David Stevens <stevensd at chromium.org> > --- > drivers/gpu/drm/virtio/virtgpu_drv.c | 3 ++ >

On Mon, Mar 2, 2020 at 4:15 AM David Stevens <stevensd at chromium.org> wrote: > > Add support for UUID-based resource sharing mechanism to virtgpu. This > implements the new virtgpu commands and hooks them up to dma-buf's > get_uuid callback. > > Signed-off-by: David Stevens <stevensd at chromium.org> > --- > drivers/gpu/drm/virtio/virtgpu_drv.c | 3 ++

Hi Tomasz, On 2020-08-19 12:16, Tomasz Figa wrote: > Hi Christoph, > > On Wed, Aug 19, 2020 at 8:56 AM Christoph Hellwig <hch at lst.de> wrote: >> >> The V4L2-FLAG-MEMORY-NON-CONSISTENT flag is entirely unused, > > Could you explain what makes you think it's unused? It's a feature of > the UAPI generally supported by the videobuf2 framework and relied

From: Dave Airlie <airlied at redhat.com> [ Upstream commit a0cecc23cfcbf2626497a8c8770856dd56b67917 ] This patch does more harm than good, as it breaks both Xwayland and gnome-shell with X11. Xwayland requires DRI3 & DRI3 requires PRIME. X11 crash for obscure double-free reason which are hard to debug (starting X11 by hand doesn't trigger the crash). I don't see an apparent

From: Dave Airlie <airlied at redhat.com> This is enough to enable DRI3. Signed-off-by: Dave Airlie <airlied at redhat.com> Signed-off-by: Gerd Hoffmann <kraxel at redhat.com> --- drivers/gpu/drm/virtio/Makefile | 2 +- drivers/gpu/drm/virtio/virtgpu_drv.c | 13 +++++- drivers/gpu/drm/virtio/virtgpu_drv.h | 12 ++++++ drivers/gpu/drm/virtio/virtgpu_prime.c | 72

From: Dave Airlie <airlied at redhat.com> This is enough to enable DRI3. Signed-off-by: Dave Airlie <airlied at redhat.com> Signed-off-by: Gerd Hoffmann <kraxel at redhat.com> --- drivers/gpu/drm/virtio/Makefile | 2 +- drivers/gpu/drm/virtio/virtgpu_drv.c | 13 +++++- drivers/gpu/drm/virtio/virtgpu_drv.h | 12 ++++++ drivers/gpu/drm/virtio/virtgpu_prime.c | 72

From: Dave Airlie <airlied at redhat.com> This is enough to enable DRI3. Signed-off-by: Dave Airlie <airlied at redhat.com> Signed-off-by: Gerd Hoffmann <kraxel at redhat.com> --- drivers/gpu/drm/virtio/Makefile | 2 +- drivers/gpu/drm/virtio/virtgpu_drv.c | 13 ++++++- drivers/gpu/drm/virtio/virtgpu_drv.h | 12 ++++++ drivers/gpu/drm/virtio/virtgpu_prime.c | 71

From: Dave Airlie <airlied at redhat.com> This is enough to enable DRI3. Signed-off-by: Dave Airlie <airlied at redhat.com> Signed-off-by: Gerd Hoffmann <kraxel at redhat.com> --- drivers/gpu/drm/virtio/Makefile | 2 +- drivers/gpu/drm/virtio/virtgpu_drv.c | 13 ++++++- drivers/gpu/drm/virtio/virtgpu_drv.h | 12 ++++++ drivers/gpu/drm/virtio/virtgpu_prime.c | 71

On Mon, Sep 21, 2015 at 11:40:16AM +0200, Gerd Hoffmann wrote: > From: Dave Airlie <airlied at redhat.com> > > This is enough to enable DRI3. > > Signed-off-by: Dave Airlie <airlied at redhat.com> > Signed-off-by: Gerd Hoffmann <kraxel at redhat.com> > --- > drivers/gpu/drm/virtio/Makefile | 2 +- > drivers/gpu/drm/virtio/virtgpu_drv.c | 13

On Wed, Aug 19, 2020 at 1:51 PM Robin Murphy <robin.murphy at arm.com> wrote: > > Hi Tomasz, > > On 2020-08-19 12:16, Tomasz Figa wrote: > > Hi Christoph, > > > > On Wed, Aug 19, 2020 at 8:56 AM Christoph Hellwig <hch at lst.de> wrote: > >> > >> The V4L2-FLAG-MEMORY-NON-CONSISTENT flag is entirely unused, > > > > Could you

From: Dave Airlie <airlied at redhat.com> This is enough to enable DRI3. Signed-off-by: Dave Airlie <airlied at redhat.com> Signed-off-by: Gerd Hoffmann <kraxel at redhat.com> --- drivers/gpu/drm/virtio/Makefile | 2 +- drivers/gpu/drm/virtio/virtgpu_drv.c | 13 +++++- drivers/gpu/drm/virtio/virtgpu_drv.h | 12 ++++++ drivers/gpu/drm/virtio/virtgpu_prime.c | 72

From: Dave Airlie <airlied at redhat.com> This is enough to enable DRI3. Signed-off-by: Dave Airlie <airlied at redhat.com> Signed-off-by: Gerd Hoffmann <kraxel at redhat.com> --- drivers/gpu/drm/virtio/Makefile | 2 +- drivers/gpu/drm/virtio/virtgpu_drv.c | 13 +++++- drivers/gpu/drm/virtio/virtgpu_drv.h | 12 ++++++ drivers/gpu/drm/virtio/virtgpu_prime.c | 72

The V4L2-FLAG-MEMORY-NON-CONSISTENT flag is entirely unused, and causes weird gymanstics with the DMA_ATTR_NON_CONSISTENT flag, which is unimplemented except on PARISC and some MIPS configs, and about to be removed. Signed-off-by: Christoph Hellwig <hch at lst.de> --- .../userspace-api/media/v4l/buffer.rst | 17 --------- .../media/v4l/vidioc-reqbufs.rst | 1 -

Hi Christoph, On Wed, Aug 19, 2020 at 8:56 AM Christoph Hellwig <hch at lst.de> wrote: > > The V4L2-FLAG-MEMORY-NON-CONSISTENT flag is entirely unused, Could you explain what makes you think it's unused? It's a feature of the UAPI generally supported by the videobuf2 framework and relied on by Chromium OS to get any kind of reasonable performance when accessing V4L2 buffers

GEM object functions deprecate several similar callback interfaces in struct drm_driver. This patch replaces virtgpu's per-driver PRIME export function with a per-object function. Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de> --- drivers/gpu/drm/virtio/virtgpu_drv.c | 1 - drivers/gpu/drm/virtio/virtgpu_object.c | 1 + 2 files changed, 1 insertion(+), 1 deletion(-) diff

From: Sergey Senozhatsky <sergey.senozhatsky at gmail.com> The patch partially reverts some of the UAPI bits of the buffer cache management hints. Namely, the queue consistency (memory coherency) user-space hint because, as it turned out, the kernel implementation of this feature was misusing DMA_ATTR_NON_CONSISTENT. The patch revers both kernel and user space parts: removes the DMA

From: Thierry Reding <treding at nvidia.com> Export some more of the helpers in order to allow drivers to more fine- grainedly select which helpers to use. This gives drivers an easy way to reuse a lot of the code in the helpers while at the same time allowing them to provide their own implementation for other functions in struct dma_buf_ops. Signed-off-by: Thierry Reding <treding at