[PATCH 3/6] virtio: Allocate virtqueue in page-size units

[Simon Glass]

On Thu, 30 Mar 2023 at 03:26, Ying-Chun Liu (PaulLiu)
<paul.liu at linaro.org> wrote:
>
> From: Will Deacon <willdeacon at google.com>
>
> In preparation for explicit bouncing of virtqueue pages for devices
> advertising the VIRTIO_F_IOMMU_PLATFORM feature, introduce a couple
> of wrappers around virtqueue allocation and freeing operations,
> ensuring that buffers are handled in terms of page-size units.
>
> Signed-off-by: Will Deacon <willdeacon at google.com>
> [ Paul: pick from the Android tree. Rebase to the upstream ]
> Signed-off-by: Ying-Chun Liu (PaulLiu) <paul.liu at linaro.org>
> Cc: Bin Meng <bmeng.cn at gmail.com>
> Link: https://android.googlesource.com/platform/external/u-boot/+/b4bb5227d4cf4fdfcd8b4e1ff2692d3a54d1482a
> ---
>  drivers/virtio/virtio_ring.c | 24 ++++++++++++++++++++----
>  include/virtio_ring.h        | 16 +++++++++-------
>  2 files changed, 29 insertions(+), 11 deletions(-)
>

Reviewed-by: Simon Glass <sjg at chromium.org>