Displaying 5 results from an estimated 5 matches for "platform_dma".
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2020 Jun 08
0
[PATCH v3 4/4] drm/virtio: Support virtgpu exported resources
..._uuid = true;
> > > + }
> >
> >
> > Just a question: this relies on DMA bufs so I assume it is
> > not really assumed to work when DMA API is bypassed, right?
> > Rather than worry what does it mean, how about just
> > disabling this feature without PLATFORM_DMA for now?
>
> By PLATFORM_DMA, do you mean CONFIG_DMA_SHARED_BUFFER?
Sorry, no. I mean VIRTIO_F_IOMMU_PLATFORM which in the
future will be renamed to VIRTIO_F_PLATFORM_ACCESS.
> Virtio-gpu
> depends on DRM, which selects that feature. So I think DMA bufs should
> always be availab...
2020 Jun 08
0
[PATCH v3 4/4] drm/virtio: Support virtgpu exported resources
...; > > >
> > > > Just a question: this relies on DMA bufs so I assume it is
> > > > not really assumed to work when DMA API is bypassed, right?
> > > > Rather than worry what does it mean, how about just
> > > > disabling this feature without PLATFORM_DMA for now?
> > >
> > > By PLATFORM_DMA, do you mean CONFIG_DMA_SHARED_BUFFER?
> >
> > Sorry, no. I mean VIRTIO_F_IOMMU_PLATFORM which in the
> > future will be renamed to VIRTIO_F_PLATFORM_ACCESS.
>
> Shouldn't things work independent of whether or not t...
2020 May 13
0
[PATCH v3 4/4] drm/virtio: Support virtgpu exported resources
...ev, VIRTIO_GPU_F_RESOURCE_UUID)) {
> + vgdev->has_resource_assign_uuid = true;
> + }
Just a question: this relies on DMA bufs so I assume it is
not really assumed to work when DMA API is bypassed, right?
Rather than worry what does it mean, how about just
disabling this feature without PLATFORM_DMA for now?
>
> DRM_INFO("features: %cvirgl %cedid\n",
> vgdev->has_virgl_3d ? '+' : '-',
> diff --git a/drivers/gpu/drm/virtio/virtgpu_prime.c b/drivers/gpu/drm/virtio/virtgpu_prime.c
> index 050d24c39a8f..7c6357f59877 100644
> --- a/drivers/gpu...
2018 Jun 07
2
[RFC V2] virtio: Add platform specific DMA API translation for virito devices
On Wed, Jun 06, 2018 at 10:23:06PM -0700, Christoph Hellwig wrote:
> On Thu, May 31, 2018 at 08:43:58PM +0300, Michael S. Tsirkin wrote:
> > Pls work on a long term solution. Short term needs can be served by
> > enabling the iommu platform in qemu.
>
> So, I spent some time looking at converting virtio to dma ops overrides,
> and the current virtio spec, and the sad
2018 Jun 07
2
[RFC V2] virtio: Add platform specific DMA API translation for virito devices
On Wed, Jun 06, 2018 at 10:23:06PM -0700, Christoph Hellwig wrote:
> On Thu, May 31, 2018 at 08:43:58PM +0300, Michael S. Tsirkin wrote:
> > Pls work on a long term solution. Short term needs can be served by
> > enabling the iommu platform in qemu.
>
> So, I spent some time looking at converting virtio to dma ops overrides,
> and the current virtio spec, and the sad