iommu/riscv: Add command queue lock

Add a raw spinlock to the RISC-V IOMMU queue state so command queue
publishing can be serialized by a later change.

Fixes: 856c0cfe5c5f ("iommu/riscv: Command and fault queue support")
Signed-off-by: Fangyu Yu <fangyu.yu@linux.alibaba.com>
Reviewed-by: Nutty Liu <nutty.liu@hotmail.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>

0 files changed, 0 insertions, 0 deletions