1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * omap iommu: simple virtual address space management
4  *
5  * Copyright (C) 2008-2009 Nokia Corporation
6  *
7  * Written by Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
8  */
9 
10 #ifndef _OMAP_IOMMU_H_
11 #define _OMAP_IOMMU_H_
12 
13 struct iommu_domain;
14 
15 #ifdef CONFIG_OMAP_IOMMU
16 extern void omap_iommu_save_ctx(struct device *dev);
17 extern void omap_iommu_restore_ctx(struct device *dev);
18 
19 int omap_iommu_domain_deactivate(struct iommu_domain *domain);
20 int omap_iommu_domain_activate(struct iommu_domain *domain);
21 #else
omap_iommu_save_ctx(struct device * dev)22 static inline void omap_iommu_save_ctx(struct device *dev) {}
omap_iommu_restore_ctx(struct device * dev)23 static inline void omap_iommu_restore_ctx(struct device *dev) {}
24 
omap_iommu_domain_deactivate(struct iommu_domain * domain)25 static inline int omap_iommu_domain_deactivate(struct iommu_domain *domain)
26 {
27 	return -ENODEV;
28 }
29 
omap_iommu_domain_activate(struct iommu_domain * domain)30 static inline int omap_iommu_domain_activate(struct iommu_domain *domain)
31 {
32 	return -ENODEV;
33 }
34 #endif
35 
36 #endif
37