1/*
 2 * Copyright (C) 2009-2010 Advanced Micro Devices, Inc.
 3 * Author: Joerg Roedel <joerg.roedel@amd.com>
 4 *
 5 * This program is free software; you can redistribute it and/or modify it
 6 * under the terms of the GNU General Public License version 2 as published
 7 * by the Free Software Foundation.
 8 *
 9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
17 */
18
19#ifndef _ASM_X86_AMD_IOMMU_PROTO_H
20#define _ASM_X86_AMD_IOMMU_PROTO_H
21
22#include "amd_iommu_types.h"
23
24extern int amd_iommu_init_dma_ops(void);
25extern int amd_iommu_init_passthrough(void);
26extern irqreturn_t amd_iommu_int_thread(int irq, void *data);
27extern irqreturn_t amd_iommu_int_handler(int irq, void *data);
28extern void amd_iommu_apply_erratum_63(u16 devid);
29extern void amd_iommu_reset_cmd_buffer(struct amd_iommu *iommu);
30extern int amd_iommu_init_devices(void);
31extern void amd_iommu_uninit_devices(void);
32extern void amd_iommu_init_notifier(void);
33extern void amd_iommu_init_api(void);
34#ifndef CONFIG_AMD_IOMMU_STATS
35
36static inline void amd_iommu_stats_init(void) { }
37
38#endif /* !CONFIG_AMD_IOMMU_STATS */
39
40static inline bool is_rd890_iommu(struct pci_dev *pdev)
41{
42	return (pdev->vendor == PCI_VENDOR_ID_ATI) &&
43	       (pdev->device == PCI_DEVICE_ID_RD890_IOMMU);
44}
45
46static inline bool iommu_feature(struct amd_iommu *iommu, u64 f)
47{
48	if (!(iommu->cap & (1 << IOMMU_CAP_EFR)))
49		return false;
50
51	return !!(iommu->features & f);
52}
53
54#endif /* _ASM_X86_AMD_IOMMU_PROTO_H  */