2008-06-27 03:27:39 +08:00
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/*
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* Copyright (C) 2007-2008 Advanced Micro Devices, Inc.
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* Author: Joerg Roedel <joerg.roedel@amd.com>
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* Leo Duran <leo.duran@amd.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/pci.h>
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#include <linux/acpi.h>
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#include <linux/gfp.h>
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#include <linux/list.h>
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#include <asm/pci-direct.h>
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#include <asm/amd_iommu_types.h>
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#include <asm/gart.h>
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/*
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* definitions for the ACPI scanning code
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*/
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#define UPDATE_LAST_BDF(x) do {\
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if ((x) > amd_iommu_last_bdf) \
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amd_iommu_last_bdf = (x); \
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} while (0);
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#define DEVID(bus, devfn) (((bus) << 8) | (devfn))
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#define PCI_BUS(x) (((x) >> 8) & 0xff)
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#define IVRS_HEADER_LENGTH 48
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#define TBL_SIZE(x) (1 << (PAGE_SHIFT + get_order(amd_iommu_last_bdf * (x))))
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#define ACPI_IVHD_TYPE 0x10
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#define ACPI_IVMD_TYPE_ALL 0x20
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#define ACPI_IVMD_TYPE 0x21
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#define ACPI_IVMD_TYPE_RANGE 0x22
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#define IVHD_DEV_ALL 0x01
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#define IVHD_DEV_SELECT 0x02
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#define IVHD_DEV_SELECT_RANGE_START 0x03
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#define IVHD_DEV_RANGE_END 0x04
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#define IVHD_DEV_ALIAS 0x42
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#define IVHD_DEV_ALIAS_RANGE 0x43
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#define IVHD_DEV_EXT_SELECT 0x46
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#define IVHD_DEV_EXT_SELECT_RANGE 0x47
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#define IVHD_FLAG_HT_TUN_EN 0x00
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#define IVHD_FLAG_PASSPW_EN 0x01
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#define IVHD_FLAG_RESPASSPW_EN 0x02
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#define IVHD_FLAG_ISOC_EN 0x03
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#define IVMD_FLAG_EXCL_RANGE 0x08
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#define IVMD_FLAG_UNITY_MAP 0x01
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#define ACPI_DEVFLAG_INITPASS 0x01
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#define ACPI_DEVFLAG_EXTINT 0x02
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#define ACPI_DEVFLAG_NMI 0x04
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#define ACPI_DEVFLAG_SYSMGT1 0x10
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#define ACPI_DEVFLAG_SYSMGT2 0x20
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#define ACPI_DEVFLAG_LINT0 0x40
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#define ACPI_DEVFLAG_LINT1 0x80
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#define ACPI_DEVFLAG_ATSDIS 0x10000000
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struct ivhd_header {
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u8 type;
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u8 flags;
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u16 length;
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u16 devid;
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u16 cap_ptr;
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u64 mmio_phys;
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u16 pci_seg;
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u16 info;
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u32 reserved;
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} __attribute__((packed));
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struct ivhd_entry {
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u8 type;
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u16 devid;
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u8 flags;
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u32 ext;
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} __attribute__((packed));
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struct ivmd_header {
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u8 type;
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u8 flags;
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u16 length;
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u16 devid;
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u16 aux;
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u64 resv;
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u64 range_start;
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u64 range_length;
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} __attribute__((packed));
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2008-06-27 03:27:40 +08:00
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static int __initdata amd_iommu_disable;
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u16 amd_iommu_last_bdf;
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struct list_head amd_iommu_unity_map;
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unsigned amd_iommu_aperture_order = 26;
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int amd_iommu_isolate;
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struct list_head amd_iommu_list;
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struct dev_table_entry *amd_iommu_dev_table;
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u16 *amd_iommu_alias_table;
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struct amd_iommu **amd_iommu_rlookup_table;
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struct protection_domain **amd_iommu_pd_table;
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unsigned long *amd_iommu_pd_alloc_bitmap;
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static u32 dev_table_size;
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static u32 alias_table_size;
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static u32 rlookup_table_size;
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