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6a9401a7 | 1 | /* |
5d0d7156 | 2 | * Copyright (C) 2009-2010 Advanced Micro Devices, Inc. |
63ce3ae8 | 3 | * Author: Joerg Roedel <jroedel@suse.de> |
6a9401a7 JR |
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 | ||
403f81d8 | 22 | #include "amd_iommu_types.h" |
6a9401a7 | 23 | |
6b9376e3 | 24 | extern int amd_iommu_get_num_iommus(void); |
6a9401a7 JR |
25 | extern int amd_iommu_init_dma_ops(void); |
26 | extern int amd_iommu_init_passthrough(void); | |
72fe00f0 | 27 | extern irqreturn_t amd_iommu_int_thread(int irq, void *data); |
6a9401a7 | 28 | extern irqreturn_t amd_iommu_int_handler(int irq, void *data); |
6a9401a7 JR |
29 | extern void amd_iommu_apply_erratum_63(u16 devid); |
30 | extern void amd_iommu_reset_cmd_buffer(struct amd_iommu *iommu); | |
b7cc9554 JR |
31 | extern int amd_iommu_init_devices(void); |
32 | extern void amd_iommu_uninit_devices(void); | |
8638c491 | 33 | extern void amd_iommu_init_notifier(void); |
3a18404c | 34 | extern int amd_iommu_init_api(void); |
400a28a0 | 35 | |
6b474b82 | 36 | /* Needed for interrupt remapping */ |
6b474b82 JR |
37 | extern int amd_iommu_prepare(void); |
38 | extern int amd_iommu_enable(void); | |
39 | extern void amd_iommu_disable(void); | |
40 | extern int amd_iommu_reenable(int); | |
41 | extern int amd_iommu_enable_faulting(void); | |
3928aa3f | 42 | extern int amd_iommu_guest_ir; |
6b474b82 | 43 | |
72e1dcc4 | 44 | /* IOMMUv2 specific functions */ |
132bd68f JR |
45 | struct iommu_domain; |
46 | ||
400a28a0 | 47 | extern bool amd_iommu_v2_supported(void); |
72e1dcc4 JR |
48 | extern int amd_iommu_register_ppr_notifier(struct notifier_block *nb); |
49 | extern int amd_iommu_unregister_ppr_notifier(struct notifier_block *nb); | |
132bd68f | 50 | extern void amd_iommu_domain_direct_map(struct iommu_domain *dom); |
52815b75 | 51 | extern int amd_iommu_domain_enable_v2(struct iommu_domain *dom, int pasids); |
22e266c7 JR |
52 | extern int amd_iommu_flush_page(struct iommu_domain *dom, int pasid, |
53 | u64 address); | |
54 | extern int amd_iommu_flush_tlb(struct iommu_domain *dom, int pasid); | |
b16137b1 JR |
55 | extern int amd_iommu_domain_set_gcr3(struct iommu_domain *dom, int pasid, |
56 | unsigned long cr3); | |
57 | extern int amd_iommu_domain_clear_gcr3(struct iommu_domain *dom, int pasid); | |
f3572db8 | 58 | extern struct iommu_domain *amd_iommu_get_v2_domain(struct pci_dev *pdev); |
b16137b1 | 59 | |
7c71d306 JL |
60 | #ifdef CONFIG_IRQ_REMAP |
61 | extern int amd_iommu_create_irq_domain(struct amd_iommu *iommu); | |
62 | #else | |
63 | static inline int amd_iommu_create_irq_domain(struct amd_iommu *iommu) | |
64 | { | |
65 | return 0; | |
66 | } | |
67 | #endif | |
68 | ||
c99afa25 JR |
69 | #define PPR_SUCCESS 0x0 |
70 | #define PPR_INVALID 0x1 | |
71 | #define PPR_FAILURE 0xf | |
72 | ||
73 | extern int amd_iommu_complete_ppr(struct pci_dev *pdev, int pasid, | |
74 | int status, int tag); | |
400a28a0 | 75 | |
4c894f47 JR |
76 | static inline bool is_rd890_iommu(struct pci_dev *pdev) |
77 | { | |
78 | return (pdev->vendor == PCI_VENDOR_ID_ATI) && | |
79 | (pdev->device == PCI_DEVICE_ID_RD890_IOMMU); | |
80 | } | |
81 | ||
d99ddec3 JR |
82 | static inline bool iommu_feature(struct amd_iommu *iommu, u64 f) |
83 | { | |
84 | if (!(iommu->cap & (1 << IOMMU_CAP_EFR))) | |
85 | return false; | |
86 | ||
87 | return !!(iommu->features & f); | |
88 | } | |
89 | ||
6a9401a7 | 90 | #endif /* _ASM_X86_AMD_IOMMU_PROTO_H */ |