1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
4  * Copyright (c) 2019-2020 Ruslan Bukin <br@bsdpad.com>
8  * Technology) under DARPA contract HR0011-18-C-0016 ("ECATS"), as part of the
51 #include <dev/iommu/iommu.h>
53 #include <arm64/iommu/iommu.h>
65 	device_t parent;  member
79 	i = iort_data->count;  in iort_handler()
81 	switch(entry->Type) {  in iort_handler()
88 		if (iort_data->smmu[i] != NULL) {  in iort_handler()
90 				device_printf(iort_data->parent,  in iort_handler()
95 		iort_data->smmu[i] = (ACPI_IORT_SMMU_V3 *)node->NodeData;  in iort_handler()
96 		iort_data->count++;  in iort_handler()
104 smmu_acpi_identify(driver_t *driver, device_t parent)  in smmu_acpi_identify()  argument
119 		device_printf(parent, "smmu: Unable to map the IORT\n");  in smmu_acpi_identify()
123 	iort_data.parent = parent;  in smmu_acpi_identify()
128 	acpi_walk_subtables(iort + 1, (char *)iort + iort->Header.Length,  in smmu_acpi_identify()
131 		device_printf(parent, "No SMMU found.\n");  in smmu_acpi_identify()
136 		dev = BUS_ADD_CHILD(parent,  in smmu_acpi_identify()
137 		    BUS_PASS_INTERRUPT + BUS_PASS_ORDER_MIDDLE, "smmu", -1);  in smmu_acpi_identify()
139 			device_printf(parent, "add smmu child failed\n");  in smmu_acpi_identify()
144 		BUS_SET_RESOURCE(parent, dev, SYS_RES_IRQ, 0,  in smmu_acpi_identify()
145 		    iort_data.smmu[i]->EventGsiv, 1);  in smmu_acpi_identify()
146 		BUS_SET_RESOURCE(parent, dev, SYS_RES_IRQ, 1,  in smmu_acpi_identify()
147 		    iort_data.smmu[i]->PriGsiv, 1);  in smmu_acpi_identify()
148 		BUS_SET_RESOURCE(parent, dev, SYS_RES_IRQ, 2,  in smmu_acpi_identify()
149 		    iort_data.smmu[i]->SyncGsiv, 1);  in smmu_acpi_identify()
150 		BUS_SET_RESOURCE(parent, dev, SYS_RES_IRQ, 3,  in smmu_acpi_identify()
151 		    iort_data.smmu[i]->GerrGsiv, 1);  in smmu_acpi_identify()
152 		BUS_SET_RESOURCE(parent, dev, SYS_RES_MEMORY, 0,  in smmu_acpi_identify()
153 		    iort_data.smmu[i]->BaseAddress, MEMORY_RESOURCE_SIZE);  in smmu_acpi_identify()
155 		priv = iort_data.smmu[i]->Flags;  in smmu_acpi_identify()
157 		priv |= iort_data.smmu[i]->Model;  in smmu_acpi_identify()
190 	struct iommu_unit *iommu;  in smmu_acpi_attach()  local
196 	sc->dev = dev;  in smmu_acpi_attach()
200 		sc->features |= SMMU_FEATURE_COHERENCY;  in smmu_acpi_attach()
203 		device_printf(sc->dev, "%s: features %x\n",  in smmu_acpi_attach()
204 		    __func__, sc->features);  in smmu_acpi_attach()
207 	sc->res[0] = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,  in smmu_acpi_attach()
209 	if (sc->res[0] == NULL) {  in smmu_acpi_attach()
216 	 * Interrupt lines are "eventq", "priq", "cmdq-sync", "gerror".  in smmu_acpi_attach()
220 	sc->res[1] = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE);  in smmu_acpi_attach()
221 	if (sc->res[1] == NULL) {  in smmu_acpi_attach()
228 	sc->res[3] = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE);  in smmu_acpi_attach()
229 	if (sc->res[3] == NULL) {  in smmu_acpi_attach()
230 		device_printf(dev, "Can't allocate cmdq-sync IRQ resource.\n");  in smmu_acpi_attach()
236 	sc->res[4] = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE);  in smmu_acpi_attach()
237 	if (sc->res[4] == NULL) {  in smmu_acpi_attach()
247 	unit = &sc->unit;  in smmu_acpi_attach()
248 	unit->dev = dev;  in smmu_acpi_attach()
250 	iommu = &unit->iommu;  in smmu_acpi_attach()
251 	iommu->dev = dev;  in smmu_acpi_attach()
253 	LIST_INIT(&unit->domain_list);  in smmu_acpi_attach()
256 	sc->xref = bus_get_resource_start(dev, SYS_RES_MEMORY, 0);  in smmu_acpi_attach()
258 	err = iommu_register(iommu);  in smmu_acpi_attach()