Introduce device driver for PCIe implementation
of RISC-V IOMMU architected hardware.
IOMMU hardware and system support for MSI or MSI-X is
required by this implementation.
Vendor and device identifiers used in this patch
matches QEMU implementation of the RISC-V IOMMU PCIe
device, from Rivos VID (0x1efd) range allocated by the PCI-SIG.
MAINTAINERS | added iommu-pci.c already covered by matching pattern.
Link:https://lore.kernel.org/qemu-devel/20240307160319.675044-1-dbarboza@xxxxxxxxxxxxxxxx/
Co-developed-by: Nick Kossifidis<mick@xxxxxxxxxxxx>
Signed-off-by: Nick Kossifidis<mick@xxxxxxxxxxxx>
Signed-off-by: Tomasz Jeznach<tjeznach@xxxxxxxxxxxx>
---
drivers/iommu/riscv/Kconfig | 5 ++
drivers/iommu/riscv/Makefile | 1 +
drivers/iommu/riscv/iommu-pci.c | 119 ++++++++++++++++++++++++++++++++
3 files changed, 125 insertions(+)
create mode 100644 drivers/iommu/riscv/iommu-pci.c