On Thu, 30 Mar 2023 at 03:26, Ying-Chun Liu (PaulLiu) paul.liu@linaro.org wrote:
From: Will Deacon willdeacon@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@google.com [ Paul: pick from the Android tree. Rebase to the upstream ] Signed-off-by: Ying-Chun Liu (PaulLiu) paul.liu@linaro.org Cc: Bin Meng bmeng.cn@gmail.com Link: https://android.googlesource.com/platform/external/u-boot/+/b4bb5227d4cf4fdf...
drivers/virtio/virtio_ring.c | 24 ++++++++++++++++++++---- include/virtio_ring.h | 16 +++++++++------- 2 files changed, 29 insertions(+), 11 deletions(-)
Reviewed-by: Simon Glass sjg@chromium.org