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On Thu, May 14, 2020 at 11:08:52AM +0900, David Stevens wrote: > On Thu, May 14, 2020 at 12:45 AM Daniel Vetter <daniel at ffwll.ch> wrote: > > On Wed, Mar 11, 2020 at 12:20 PM David Stevens <stevensd at chromium.org> wrote: > > > > > > This change adds a new dma-buf operation that allows dma-bufs to be used > > > by virtio drivers to share exported objects. The new operation allows > > > the importing driver to query the exporting driver for the UUID which...

On Wed, Nov 17, 2021 at 07:06:34PM +0900, David Stevens wrote: > From: David Stevens <stevensd at chromium.org> > > Add a module parameters to virtio_balloon to allow specifying whether or > not the driver should call adjust_managed_page_count. If the parameter > is set, it overrides the default behavior inferred from the deflate on > OOM flag. This allows the balloon to o...

On Wed, Mar 11, 2020 at 12:20 PM David Stevens <stevensd at chromium.org> wrote: > > This change adds a new dma-buf operation that allows dma-bufs to be used > by virtio drivers to share exported objects. The new operation allows > the importing driver to query the exporting driver for the UUID which > identifies the underlying exported...

On Wed, Mar 11, 2020 at 12:20 PM David Stevens <stevensd at chromium.org> wrote: > > This change adds a new dma-buf operation that allows dma-bufs to be used > by virtio drivers to share exported objects. The new operation allows > the importing driver to query the exporting driver for the UUID which > identifies the underlying exported...

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> > --- > driv...

...tevens wrote: > This change adds a new flavor of dma-bufs that can be used by virtio > drivers to share exported objects. A virtio dma-buf can be queried by > virtio drivers to obtain the UUID which identifies the underlying > exported object. > > Signed-off-by: David Stevens <stevensd at chromium.org> Is this just for graphics? If yes I'd rather we put it in the graphics driver. We can always move it later ... > --- > drivers/virtio/Makefile | 2 +- > drivers/virtio/virtio.c | 6 +++ > drivers/virtio/virtio_dma_buf.c | 89 +++++++++++++++++...

...tevens wrote: > This change adds a new flavor of dma-bufs that can be used by virtio > drivers to share exported objects. A virtio dma-buf can be queried by > virtio drivers to obtain the UUID which identifies the underlying > exported object. > > Signed-off-by: David Stevens <stevensd at chromium.org> Is this just for graphics? If yes I'd rather we put it in the graphics driver. We can always move it later ... > --- > drivers/virtio/Makefile | 2 +- > drivers/virtio/virtio.c | 6 +++ > drivers/virtio/virtio_dma_buf.c | 89 +++++++++++++++++...

...s a new dma-buf operation that allows dma-bufs to be used > by virtio drivers to share exported objects. The new operation allows > the importing driver to query the exporting driver for the UUID which > identifies the underlying exported object. > > Signed-off-by: David Stevens <stevensd at chromium.org> > --- > drivers/dma-buf/dma-buf.c | 14 ++++++++++++++ > include/linux/dma-buf.h | 22 ++++++++++++++++++++++ > 2 files changed, 36 insertions(+) > > diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c > index d4097856c86b..a04632284ec2 10...

...of dma-bufs that can be used by virtio > > > drivers to share exported objects. A virtio dma-buf can be queried by > > > virtio drivers to obtain the UUID which identifies the underlying > > > exported object. > > > > > > Signed-off-by: David Stevens <stevensd at chromium.org> > > > > Is this just for graphics? If yes I'd rather we put it in the graphics > > driver. We can always move it later ... > > As stated in the cover letter, this will be used by virtio-video. > > The proposed virtio-video patches: https://mar...

...gt; > > drivers to share exported objects. A virtio dma-buf can be queried by > > > > > virtio drivers to obtain the UUID which identifies the underlying > > > > > exported object. > > > > > > > > > > Signed-off-by: David Stevens <stevensd at chromium.org> > > > > > > > > Is this just for graphics? If yes I'd rather we put it in the graphics > > > > driver. We can always move it later ... > > > > > > As stated in the cover letter, this will be used by virtio-video. > &gt...

...tevens wrote: > This change adds a new flavor of dma-bufs that can be used by virtio > drivers to share exported objects. A virtio dma-buf can be queried by > virtio drivers to obtain the UUID which identifies the underlying > exported object. > > Signed-off-by: David Stevens <stevensd at chromium.org> This makes VIRTIO dependent on DMA_SHARED_BUFFER. That means "select DMA_SHARED_BUFFER" will have to be added to "config VIRTIO". Guenter > --- > drivers/virtio/Makefile | 2 +- > drivers/virtio/virtio.c | 6 +++ > drivers/vi...

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 ++ > drivers/gpu/drm/virtio/virtgpu_drv.h | 18 +++++++++ > drivers/gpu/drm/virtio/virtgpu_kms.c | 4 ++ > drivers/gpu/drm/virtio/virtgpu_prime.c | 41 +++++++++++++++++-- > drivers/gpu/drm/virtio/virtg...

...objects. A virtio dma-buf can be queried by > > > > > > > virtio drivers to obtain the UUID which identifies the underlying > > > > > > > exported object. > > > > > > > > > > > > > > Signed-off-by: David Stevens <stevensd at chromium.org> > > > > > > > > > > > > Is this just for graphics? If yes I'd rather we put it in the graphics > > > > > > driver. We can always move it later ... > > > > > > > > > > As stated in the cover l...

...sed by virtio > > > > drivers to share exported objects. A virtio dma-buf can be queried by > > > > virtio drivers to obtain the UUID which identifies the underlying > > > > exported object. > > > > > > > > Signed-off-by: David Stevens <stevensd at chromium.org> > > > > > > Is this just for graphics? If yes I'd rather we put it in the graphics > > > driver. We can always move it later ... > > > > Wouldn't this be the API that audio virtualisation will have to use to share > > buffers...