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gerrit-public.fairphone.software / kernel / msm / ab77b1b6341e20760ada76e1735614d64594bb0b / . / arch / arm / mach-msm / include / mach / iommu_domains.h
blob: af9213fe2b5d31e0c8d6cf46496524ba36683eb0 [file] [log] [blame]
Olav Hauganab77b1b2012-02-28 09:19:22 -0800[diff] [blame^]1/* Copyright (c) 2011-2012, Code Aurora Forum. All rights reserved.
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -0700[diff] [blame]2 *
3 * This program is free software; you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License version 2 and
5 * only version 2 as published by the Free Software Foundation.
6 *
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 * GNU General Public License for more details.
11 */
12
13#ifndef _ARCH_IOMMU_DOMAINS_H
14#define _ARCH_IOMMU_DOMAINS_H
15
Laura Abbott9f4a8e62011-08-29 19:08:07 -0700[diff] [blame]16enum {
Olav Hauganab77b1b2012-02-28 09:19:22 -0800[diff] [blame^]17 VIDEO_DOMAIN,
18 CAMERA_DOMAIN = VIDEO_DOMAIN,
19 DISPLAY_DOMAIN = CAMERA_DOMAIN,
20 ROTATOR_DOMAIN = DISPLAY_DOMAIN,
Laura Abbott9f4a8e62011-08-29 19:08:07 -0700[diff] [blame]21 MAX_DOMAINS
22};
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -0700[diff] [blame]23
Laura Abbott9f4a8e62011-08-29 19:08:07 -0700[diff] [blame]24enum {
25 VIDEO_FIRMWARE_POOL,
Olav Hauganee365362012-02-16 09:31:37 -0800[diff] [blame]26 VIDEO_MAIN_POOL,
Olav Hauganee365362012-02-16 09:31:37 -0800[diff] [blame]27 GEN_POOL,
Laura Abbott9f4a8e62011-08-29 19:08:07 -0700[diff] [blame]28};
29
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -0700[diff] [blame]30
31#if defined(CONFIG_MSM_IOMMU)
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -0700[diff] [blame]32
Laura Abbott9f4a8e62011-08-29 19:08:07 -0700[diff] [blame]33extern struct iommu_domain *msm_get_iommu_domain(int domain_num);
34
35extern unsigned long msm_allocate_iova_address(unsigned int iommu_domain,
36 unsigned int partition_no,
37 unsigned long size,
38 unsigned long align);
39
40extern void msm_free_iova_address(unsigned long iova,
41 unsigned int iommu_domain,
42 unsigned int partition_no,
43 unsigned long size);
44
45extern unsigned long msm_subsystem_get_domain_no(int subsys_id);
46
47extern unsigned long msm_subsystem_get_partition_no(int subsys_id);
48
49extern int msm_use_iommu(void);
Laura Abbotte956cce2011-10-25 13:33:20 -0700[diff] [blame]50
51extern int msm_iommu_map_extra(struct iommu_domain *domain,
52 unsigned long start_iova,
53 unsigned long size,
54 int cached);
55
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -0700[diff] [blame]56#else
57static inline struct iommu_domain
Laura Abbott9f4a8e62011-08-29 19:08:07 -0700[diff] [blame]58 *msm_get_iommu_domain(int subsys_id) { return NULL; }
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -0700[diff] [blame]59
Laura Abbott9f4a8e62011-08-29 19:08:07 -0700[diff] [blame]60
61
62static inline unsigned long msm_allocate_iova_address(unsigned int iommu_domain,
63 unsigned int partition_no,
64 unsigned long size,
65 unsigned long align) { return 0; }
66
67static inline void msm_free_iova_address(unsigned long iova,
68 unsigned int iommu_domain,
69 unsigned int partition_no,
70 unsigned long size) { return; }
71
72static inline unsigned long msm_subsystem_get_domain_no(int subsys_id)
73{
74 return 0xFFFFFFFF;
75}
76
77static inline unsigned long msm_subsystem_get_partition_no(int subsys_id)
78{
79 return 0xFFFFFFFF;
80}
81
82static inline int msm_use_iommu(void)
83{
84 return 0;
85}
Laura Abbotte956cce2011-10-25 13:33:20 -0700[diff] [blame]86
87static inline int msm_iommu_map_extra(struct iommu_domain *domain,
88 unsigned long start_iova,
89 unsigned long size,
90 int cached)
91{
92 return -ENODEV;
93}
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -0700[diff] [blame]94#endif
95
96#endif