56 lines
1.6 KiB
C
56 lines
1.6 KiB
C
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/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2013 Rudolf Marek <r.marek@assembler.cz>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <device/device.h>
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#include <device/pci.h>
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#include <device/pci_ids.h>
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#include <device/pci_ops.h>
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#include <lib.h>
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static void iommu_read_resources(struct device *dev)
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{
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struct resource *res;
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/* Get the normal pci resources of this device */
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pci_dev_read_resources(dev);
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/* Add an extra subtractive resource for both memory and I/O. */
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res = new_resource(dev, 0x44);
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res->size = 512 * 1024;
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res->align = log2(res->size);
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res->gran = log2(res->size);
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res->limit = 0xffffffff; /* 4G */
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res->flags = IORESOURCE_MEM;
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}
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static struct pci_operations lops_pci = {
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.set_subsystem = pci_dev_set_subsystem,
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};
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static struct device_operations iommu_ops = {
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.read_resources = iommu_read_resources,
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.set_resources = pci_dev_set_resources,
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.enable_resources = pci_dev_enable_resources,
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.init = 0,
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.scan_bus = 0,
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.ops_pci = &lops_pci,
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};
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static const struct pci_driver iommu_driver __pci_driver = {
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.ops = &iommu_ops,
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.vendor = PCI_VENDOR_ID_AMD,
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.device = PCI_DEVICE_ID_AMD_15H_MODEL_707F_NB_IOMMU,
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};
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