vfs: Add inode uid,gid,mode init helper

[safe/jmp/linux-2.6] / include / linux / iommu.h

diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 8a7bfb1..be22ad8 100644 (file)
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -21,6 +21,7 @@
 
 #define IOMMU_READ     (1)
 #define IOMMU_WRITE    (2)
+#define IOMMU_CACHE    (4) /* DMA cache coherency */
 
 struct device;
 
@@ -28,17 +29,21 @@ struct iommu_domain {
        void *priv;
 };
 
+#define IOMMU_CAP_CACHE_COHERENCY      0x1
+
 struct iommu_ops {
        int (*domain_init)(struct iommu_domain *domain);
        void (*domain_destroy)(struct iommu_domain *domain);
        int (*attach_dev)(struct iommu_domain *domain, struct device *dev);
        void (*detach_dev)(struct iommu_domain *domain, struct device *dev);
        int (*map)(struct iommu_domain *domain, unsigned long iova,
-                  phys_addr_t paddr, size_t size, int prot);
-       void (*unmap)(struct iommu_domain *domain, unsigned long iova,
-                     size_t size);
+                  phys_addr_t paddr, int gfp_order, int prot);
+       int (*unmap)(struct iommu_domain *domain, unsigned long iova,
+                    int gfp_order);
        phys_addr_t (*iova_to_phys)(struct iommu_domain *domain,
                                    unsigned long iova);
+       int (*domain_has_cap)(struct iommu_domain *domain,
+                             unsigned long cap);
 };
 
 #ifdef CONFIG_IOMMU_API
@@ -51,12 +56,14 @@ extern int iommu_attach_device(struct iommu_domain *domain,
                               struct device *dev);
 extern void iommu_detach_device(struct iommu_domain *domain,
                                struct device *dev);
-extern int iommu_map_range(struct iommu_domain *domain, unsigned long iova,
-                          phys_addr_t paddr, size_t size, int prot);
-extern void iommu_unmap_range(struct iommu_domain *domain, unsigned long iova,
-                             size_t size);
+extern int iommu_map(struct iommu_domain *domain, unsigned long iova,
+                    phys_addr_t paddr, int gfp_order, int prot);
+extern int iommu_unmap(struct iommu_domain *domain, unsigned long iova,
+                      int gfp_order);
 extern phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain,
                                      unsigned long iova);
+extern int iommu_domain_has_cap(struct iommu_domain *domain,
+                               unsigned long cap);
 
 #else /* CONFIG_IOMMU_API */
 
@@ -89,16 +96,16 @@ static inline void iommu_detach_device(struct iommu_domain *domain,
 {
 }
 
-static inline int iommu_map_range(struct iommu_domain *domain,
-                                 unsigned long iova, phys_addr_t paddr,
-                                 size_t size, int prot)
+static inline int iommu_map(struct iommu_domain *domain, unsigned long iova,
+                           phys_addr_t paddr, int gfp_order, int prot)
 {
        return -ENODEV;
 }
 
-static inline void iommu_unmap_range(struct iommu_domain *domain,
-                                    unsigned long iova, size_t size)
+static inline int iommu_unmap(struct iommu_domain *domain, unsigned long iova,
+                             int gfp_order)
 {
+       return -ENODEV;
 }
 
 static inline phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain,
@@ -107,6 +114,12 @@ static inline phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain,
        return 0;
 }
 
+static inline int domain_has_cap(struct iommu_domain *domain,
+                                unsigned long cap)
+{
+       return 0;
+}
+
 #endif /* CONFIG_IOMMU_API */
 
 #endif /* __LINUX_IOMMU_H */