diff options
-rw-r--r-- | arch/x86/include/asm/dma-mapping.h | 18 | ||||
-rw-r--r-- | arch/x86/kernel/pci-dma.c | 17 |
2 files changed, 20 insertions, 15 deletions
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h index 63393202b9ec..1f5b7287d1ad 100644 --- a/arch/x86/include/asm/dma-mapping.h +++ b/arch/x86/include/asm/dma-mapping.h | |||
@@ -133,20 +133,8 @@ dma_alloc_attrs(struct device *dev, size_t size, dma_addr_t *dma_handle, | |||
133 | 133 | ||
134 | #define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL) | 134 | #define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL) |
135 | 135 | ||
136 | static inline void dma_free_attrs(struct device *dev, size_t size, | 136 | void dma_free_attrs(struct device *dev, size_t size, |
137 | void *vaddr, dma_addr_t bus, | 137 | void *vaddr, dma_addr_t bus, |
138 | struct dma_attrs *attrs) | 138 | struct dma_attrs *attrs); |
139 | { | ||
140 | struct dma_map_ops *ops = get_dma_ops(dev); | ||
141 | |||
142 | WARN_ON(irqs_disabled()); /* for portability */ | ||
143 | |||
144 | if (dma_release_from_coherent(dev, get_order(size), vaddr)) | ||
145 | return; | ||
146 | |||
147 | debug_dma_free_coherent(dev, size, vaddr, bus); | ||
148 | if (ops->free) | ||
149 | ops->free(dev, size, vaddr, bus, attrs); | ||
150 | } | ||
151 | 139 | ||
152 | #endif | 140 | #endif |
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c index f9f7656e1d41..353972c1946c 100644 --- a/arch/x86/kernel/pci-dma.c +++ b/arch/x86/kernel/pci-dma.c | |||
@@ -168,6 +168,23 @@ void *dma_alloc_attrs(struct device *dev, size_t size, dma_addr_t *dma_handle, | |||
168 | } | 168 | } |
169 | EXPORT_SYMBOL(dma_alloc_attrs); | 169 | EXPORT_SYMBOL(dma_alloc_attrs); |
170 | 170 | ||
171 | void dma_free_attrs(struct device *dev, size_t size, | ||
172 | void *vaddr, dma_addr_t bus, | ||
173 | struct dma_attrs *attrs) | ||
174 | { | ||
175 | struct dma_map_ops *ops = get_dma_ops(dev); | ||
176 | |||
177 | WARN_ON(irqs_disabled()); /* for portability */ | ||
178 | |||
179 | if (dma_release_from_coherent(dev, get_order(size), vaddr)) | ||
180 | return; | ||
181 | |||
182 | debug_dma_free_coherent(dev, size, vaddr, bus); | ||
183 | if (ops->free) | ||
184 | ops->free(dev, size, vaddr, bus, attrs); | ||
185 | } | ||
186 | EXPORT_SYMBOL(dma_free_attrs); | ||
187 | |||
171 | /* | 188 | /* |
172 | * See <Documentation/x86/x86_64/boot-options.txt> for the iommu kernel | 189 | * See <Documentation/x86/x86_64/boot-options.txt> for the iommu kernel |
173 | * parameter documentation. | 190 | * parameter documentation. |