On Tue, Jan 22, 2019 at 11:59:31AM -0800, Stefano Stabellini wrote:
> > if (!virtio_has_iommu_quirk(vdev))
> > return true;
> >
> > @@ -260,7 +262,7 @@ static bool vring_use_dma_api(struct virtio_device
> > *vdev)
> > * the DMA API if we're a Xen guest, which at least
On 2019/1/23 上午11:49, Michael S. Tsirkin wrote:
On Wed, Jan 23, 2019 at 11:08:04AM +0800, Jason Wang wrote:
On 2019/1/23 上午1:03, Tiwei Bie wrote:
This patch introduces the support for VIRTIO_F_ORDER_PLATFORM.
When this feature is negotiated, driver will use the barriers
suitable for hardware
On Wed, Jan 23, 2019 at 01:03:46AM +0800, Tiwei Bie wrote:
> This patch introduces the support for VIRTIO_F_ORDER_PLATFORM.
> When this feature is negotiated, driver will use the barriers
> suitable for hardware devices.
>
> Signed-off-by: Tiwei Bie
Could you pls add a bit more explanation in
On Wed, Jan 23, 2019 at 11:08:04AM +0800, Jason Wang wrote:
>
> On 2019/1/23 上午1:03, Tiwei Bie wrote:
> > This patch introduces the support for VIRTIO_F_ORDER_PLATFORM.
> > When this feature is negotiated, driver will use the barriers
> > suitable for hardware devices.
> >
> > Signed-off-by:
On 2019/1/23 上午1:03, Tiwei Bie wrote:
This patch introduces the support for VIRTIO_F_ORDER_PLATFORM.
When this feature is negotiated, driver will use the barriers
suitable for hardware devices.
Signed-off-by: Tiwei Bie
---
drivers/virtio/virtio_ring.c | 8
On Tue, Jan 22, 2019 at 11:59:31AM -0800, Stefano Stabellini wrote:
> On Mon, 21 Jan 2019, Peng Fan wrote:
> > on i.MX8QM, M4_1 is communicating with DomU using rpmsg with a fixed
> > address as the dma mem buffer which is predefined.
> >
> > Without this patch, the flow is:
> > vring_map_one_sg
This patch introduces the support for VIRTIO_F_ORDER_PLATFORM.
When this feature is negotiated, driver will use the barriers
suitable for hardware devices.
Signed-off-by: Tiwei Bie
---
drivers/virtio/virtio_ring.c | 8
include/uapi/linux/virtio_config.h | 6 ++
2 files
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On Mon, Jan 21, 2019 at 11:13 PM Sam Ravnborg wrote:
>
> Hi Daniel et al.
>
> > >
> > > Yeah the drm_crtc_helper.h header is a bit the miniature drmP.h for legacy
> > > kms drivers. Just removing it from all the atomic drivers caused lots of
> > > fallout, I expect even more if you entirely
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