Gitiles
Code Review Sign In
review.shift-gmbh.com / SHIFTPHONES / mainline / linux / 12619610006371bfc30159937d4546e731d7b297 / . / drivers / iommu / amd_iommu_proto.h
blob: 92c2ba6468a088bb59b32cc32c09a6847118a8dd [file] [log] [blame]
Thomas Gleixner45051532019-05-29 16:57:47 -0700[diff] [blame]1/* SPDX-License-Identifier: GPL-2.0-only */
Joerg Roedel6a9401a2009-11-20 13:22:21 +0100[diff] [blame]2/*
Joerg Roedel5d0d7152010-10-13 11:13:21 +0200[diff] [blame]3 * Copyright (C) 2009-2010 Advanced Micro Devices, Inc.
Joerg Roedel63ce3ae2015-02-04 16:12:55 +0100[diff] [blame]4 * Author: Joerg Roedel <jroedel@suse.de>
Joerg Roedel6a9401a2009-11-20 13:22:21 +0100[diff] [blame]5 */
6
7#ifndef _ASM_X86_AMD_IOMMU_PROTO_H
8#define _ASM_X86_AMD_IOMMU_PROTO_H
9
Joerg Roedel403f81d2011-06-14 16:44:25 +0200[diff] [blame]10#include "amd_iommu_types.h"
Joerg Roedel6a9401a2009-11-20 13:22:21 +0100[diff] [blame]11
Suravee Suthikulpanit6b9376e2017-02-24 02:48:17 -0600[diff] [blame]12extern int amd_iommu_get_num_iommus(void);
Joerg Roedel6a9401a2009-11-20 13:22:21 +0100[diff] [blame]13extern int amd_iommu_init_dma_ops(void);
14extern int amd_iommu_init_passthrough(void);
Joerg Roedel72fe00f2011-05-10 10:50:42 +0200[diff] [blame]15extern irqreturn_t amd_iommu_int_thread(int irq, void *data);
Joerg Roedel6a9401a2009-11-20 13:22:21 +0100[diff] [blame]16extern irqreturn_t amd_iommu_int_handler(int irq, void *data);
Joerg Roedel6a9401a2009-11-20 13:22:21 +0100[diff] [blame]17extern void amd_iommu_apply_erratum_63(u16 devid);
18extern void amd_iommu_reset_cmd_buffer(struct amd_iommu *iommu);
Joerg Roedelb7cc9552009-12-10 11:03:39 +0100[diff] [blame]19extern int amd_iommu_init_devices(void);
20extern void amd_iommu_uninit_devices(void);
Joerg Roedel8638c492009-12-10 11:12:25 +0100[diff] [blame]21extern void amd_iommu_init_notifier(void);
Joerg Roedel3a18404c2015-05-28 18:41:45 +0200[diff] [blame]22extern int amd_iommu_init_api(void);
Joerg Roedel400a28a2011-11-28 15:11:02 +0100[diff] [blame]23
Gary R Hook7d0f5fd2018-06-12 16:41:30 -0500[diff] [blame]24#ifdef CONFIG_AMD_IOMMU_DEBUGFS
25void amd_iommu_debugfs_setup(struct amd_iommu *iommu);
26#else
27static inline void amd_iommu_debugfs_setup(struct amd_iommu *iommu) {}
28#endif
29
Joerg Roedel6b474b82012-06-26 16:46:04 +0200[diff] [blame]30/* Needed for interrupt remapping */
Joerg Roedel6b474b82012-06-26 16:46:04 +0200[diff] [blame]31extern int amd_iommu_prepare(void);
32extern int amd_iommu_enable(void);
33extern void amd_iommu_disable(void);
34extern int amd_iommu_reenable(int);
35extern int amd_iommu_enable_faulting(void);
Suravee Suthikulpanit3928aa32016-08-23 13:52:32 -0500[diff] [blame]36extern int amd_iommu_guest_ir;
Joerg Roedel6b474b82012-06-26 16:46:04 +0200[diff] [blame]37
Joerg Roedel72e1dcc2011-11-10 19:13:51 +0100[diff] [blame]38/* IOMMUv2 specific functions */
Joerg Roedel132bd682011-11-17 14:18:46 +0100[diff] [blame]39struct iommu_domain;
40
Joerg Roedel400a28a2011-11-28 15:11:02 +0100[diff] [blame]41extern bool amd_iommu_v2_supported(void);
Joerg Roedel72e1dcc2011-11-10 19:13:51 +0100[diff] [blame]42extern int amd_iommu_register_ppr_notifier(struct notifier_block *nb);
43extern int amd_iommu_unregister_ppr_notifier(struct notifier_block *nb);
Joerg Roedel132bd682011-11-17 14:18:46 +0100[diff] [blame]44extern void amd_iommu_domain_direct_map(struct iommu_domain *dom);
Joerg Roedel52815b72011-11-17 17:24:28 +0100[diff] [blame]45extern int amd_iommu_domain_enable_v2(struct iommu_domain *dom, int pasids);
Joerg Roedel22e266c2011-11-21 15:59:08 +0100[diff] [blame]46extern int amd_iommu_flush_page(struct iommu_domain *dom, int pasid,
47 u64 address);
48extern int amd_iommu_flush_tlb(struct iommu_domain *dom, int pasid);
Joerg Roedelb16137b2011-11-21 16:50:23 +0100[diff] [blame]49extern int amd_iommu_domain_set_gcr3(struct iommu_domain *dom, int pasid,
50 unsigned long cr3);
51extern int amd_iommu_domain_clear_gcr3(struct iommu_domain *dom, int pasid);
Joerg Roedelf3572db2011-11-23 12:36:25 +0100[diff] [blame]52extern struct iommu_domain *amd_iommu_get_v2_domain(struct pci_dev *pdev);
Joerg Roedelb16137b2011-11-21 16:50:23 +0100[diff] [blame]53
Jiang Liu7c71d302015-04-13 14:11:33 +0800[diff] [blame]54#ifdef CONFIG_IRQ_REMAP
55extern int amd_iommu_create_irq_domain(struct amd_iommu *iommu);
56#else
57static inline int amd_iommu_create_irq_domain(struct amd_iommu *iommu)
58{
59 return 0;
60}
61#endif
62
Joerg Roedelc99afa22011-11-21 18:19:25 +0100[diff] [blame]63#define PPR_SUCCESS 0x0
64#define PPR_INVALID 0x1
65#define PPR_FAILURE 0xf
66
67extern int amd_iommu_complete_ppr(struct pci_dev *pdev, int pasid,
68 int status, int tag);
Joerg Roedel400a28a2011-11-28 15:11:02 +0100[diff] [blame]69
Joerg Roedel4c894f42010-09-23 15:15:19 +0200[diff] [blame]70static inline bool is_rd890_iommu(struct pci_dev *pdev)
71{
72 return (pdev->vendor == PCI_VENDOR_ID_ATI) &&
73 (pdev->device == PCI_DEVICE_ID_RD890_IOMMU);
74}
75
Joerg Roedeld99ddec2011-04-11 11:03:18 +0200[diff] [blame]76static inline bool iommu_feature(struct amd_iommu *iommu, u64 f)
77{
78 if (!(iommu->cap & (1 << IOMMU_CAP_EFR)))
79 return false;
80
81 return !!(iommu->features & f);
82}
83
Tom Lendacky2543a782017-07-17 16:10:24 -0500[diff] [blame]84static inline u64 iommu_virt_to_phys(void *vaddr)
85{
86 return (u64)__sme_set(virt_to_phys(vaddr));
87}
88
89static inline void *iommu_phys_to_virt(unsigned long paddr)
90{
91 return phys_to_virt(__sme_clr(paddr));
92}
93
Baoquan He4c232a72017-08-09 16:33:33 +0800[diff] [blame]94extern bool translation_pre_enabled(struct amd_iommu *iommu);
Baoquan Hedaae2d22017-08-09 16:33:43 +0800[diff] [blame]95extern struct iommu_dev_data *get_dev_data(struct device *dev);
Joerg Roedel6a9401a2009-11-20 13:22:21 +0100[diff] [blame]96#endif /* _ASM_X86_AMD_IOMMU_PROTO_H */