1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
46 #include <dev/iommu/iommu.h>
51 #include <dev/iommu/iommu.h>
53 #include <arm64/iommu/iommu.h>
58 	{ "arm,smmu-v3",			1 },
68 	if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0)  in smmu_fdt_probe()
81 	struct iommu_unit *iommu;  in smmu_fdt_attach()  local
87 	sc->dev = dev;  in smmu_fdt_attach()
92 	sc->res[0] = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,  in smmu_fdt_attach()
94 	if (sc->res[0] == NULL) {  in smmu_fdt_attach()
101 	 * Interrupt lines are "eventq", "priq", "cmdq-sync", "gerror".  in smmu_fdt_attach()
104 	err = ofw_bus_find_string_index(node, "interrupt-names", "eventq",  in smmu_fdt_attach()
112 	sc->res[1] = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE);  in smmu_fdt_attach()
113 	if (sc->res[1] == NULL) {  in smmu_fdt_attach()
120 	 * sc->res[2] is reserved for priq IRQ. It is optional and not used  in smmu_fdt_attach()
125 	err = ofw_bus_find_string_index(node, "interrupt-names", "cmdq-sync",  in smmu_fdt_attach()
128 		device_printf(dev, "Can't get cmdq-sync IRQ.\n");  in smmu_fdt_attach()
133 	sc->res[3] = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE);  in smmu_fdt_attach()
134 	if (sc->res[3] == NULL) {  in smmu_fdt_attach()
135 		device_printf(dev, "Can't allocate cmdq-sync IRQ resource.\n");  in smmu_fdt_attach()
140 	err = ofw_bus_find_string_index(node, "interrupt-names", "gerror",  in smmu_fdt_attach()
148 	sc->res[4] = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE);  in smmu_fdt_attach()
149 	if (sc->res[4] == NULL) {  in smmu_fdt_attach()
159 	unit = &sc->unit;  in smmu_fdt_attach()
160 	unit->dev = dev;  in smmu_fdt_attach()
162 	iommu = &unit->iommu;  in smmu_fdt_attach()
163 	iommu->dev = dev;  in smmu_fdt_attach()
165 	LIST_INIT(&unit->domain_list);  in smmu_fdt_attach()
168 	sc->xref = OF_xref_from_node(node);  in smmu_fdt_attach()
170 	err = iommu_register(iommu);  in smmu_fdt_attach()
176 	OF_device_register_xref(sc->xref, dev);  in smmu_fdt_attach()