include/linux/omap-iommu.h

   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
  22 static inline void omap_iommu_save_ctx(struct device *dev) {}
  23 static inline void omap_iommu_restore_ctx(struct device *dev) {}
  24
  25 static inline int omap_iommu_domain_deactivate(struct iommu_domain *domain)
  26 {
  27         return -ENODEV;
  28 }
  29
  30 static inline int omap_iommu_domain_activate(struct iommu_domain *domain)
  31 {
  32         return -ENODEV;
  33 }
  34 #endif
  35
  36 #endif