/* SPDX-License-Identifier: GPL-2.0-only */ #include #include #include #include static void iommu_read_resources(struct device *dev) { struct resource *res; /* Get the normal pci resources of this device */ pci_dev_read_resources(dev); /* IOMMU MMIO registers */ res = new_resource(dev, 0x44); res->size = 512 * 1024; res->align = log2(res->size); res->gran = log2(res->size); res->limit = 0xffffffff; /* 4G */ res->flags = IORESOURCE_MEM; } struct device_operations amd_pi_iommu_ops = { .read_resources = iommu_read_resources, .set_resources = pci_dev_set_resources, .enable_resources = pci_dev_enable_resources, .ops_pci = &pci_dev_ops_pci, };