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authorJoerg Roedel <joerg.roedel@amd.com>2010-05-11 11:40:57 -0400
committerJoerg Roedel <joerg.roedel@amd.com>2010-05-11 11:40:57 -0400
commit795e74f7a69f9c08afa4fa7c86cc4f18a62bd630 (patch)
tree8448ece35101d8db945c49df50d0d5889687de9f /drivers/base
parenta52357259680fe5368c2fabf5949209e231f2aa2 (diff)
parent12c7389abe5786349d3ea6da1961cf78d0c1c7cd (diff)
Merge branch 'iommu/largepages' into amd-iommu/2.6.35
Conflicts: arch/x86/kernel/amd_iommu.c
Diffstat (limited to 'drivers/base')
-rw-r--r--drivers/base/iommu.c43
1 files changed, 29 insertions, 14 deletions
diff --git a/drivers/base/iommu.c b/drivers/base/iommu.c
index 8ad4ffea6920..6e6b6a11b3ce 100644
--- a/drivers/base/iommu.c
+++ b/drivers/base/iommu.c
@@ -80,20 +80,6 @@ void iommu_detach_device(struct iommu_domain *domain, struct device *dev)
80} 80}
81EXPORT_SYMBOL_GPL(iommu_detach_device); 81EXPORT_SYMBOL_GPL(iommu_detach_device);
82 82
83int iommu_map_range(struct iommu_domain *domain, unsigned long iova,
84 phys_addr_t paddr, size_t size, int prot)
85{
86 return iommu_ops->map(domain, iova, paddr, size, prot);
87}
88EXPORT_SYMBOL_GPL(iommu_map_range);
89
90void iommu_unmap_range(struct iommu_domain *domain, unsigned long iova,
91 size_t size)
92{
93 iommu_ops->unmap(domain, iova, size);
94}
95EXPORT_SYMBOL_GPL(iommu_unmap_range);
96
97phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain, 83phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain,
98 unsigned long iova) 84 unsigned long iova)
99{ 85{
@@ -107,3 +93,32 @@ int iommu_domain_has_cap(struct iommu_domain *domain,
107 return iommu_ops->domain_has_cap(domain, cap); 93 return iommu_ops->domain_has_cap(domain, cap);
108} 94}
109EXPORT_SYMBOL_GPL(iommu_domain_has_cap); 95EXPORT_SYMBOL_GPL(iommu_domain_has_cap);
96
97int iommu_map(struct iommu_domain *domain, unsigned long iova,
98 phys_addr_t paddr, int gfp_order, int prot)
99{
100 unsigned long invalid_mask;
101 size_t size;
102
103 size = 0x1000UL << gfp_order;
104 invalid_mask = size - 1;
105
106 BUG_ON((iova | paddr) & invalid_mask);
107
108 return iommu_ops->map(domain, iova, paddr, gfp_order, prot);
109}
110EXPORT_SYMBOL_GPL(iommu_map);
111
112int iommu_unmap(struct iommu_domain *domain, unsigned long iova, int gfp_order)
113{
114 unsigned long invalid_mask;
115 size_t size;
116
117 size = 0x1000UL << gfp_order;
118 invalid_mask = size - 1;
119
120 BUG_ON(iova & invalid_mask);
121
122 return iommu_ops->unmap(domain, iova, gfp_order);
123}
124EXPORT_SYMBOL_GPL(iommu_unmap);