linux-4.4.1/dma_mmap_attrs()
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開始行:
*参照元 [#dec73efa]
#backlinks
*説明 [#zb4e217f]
-パス: [[linux-4.4.1/include/asm-generic/dma-mapping-comm...
-FIXME: これは何？
--説明
**引数 [#e604a737]
-struct device *dev
--
--[[linux-4.4.1/device]]
-struct vm_area_struct *vma
--
--[[linux-4.4.1/vm_area_struct]]
-void *cpu_addr
--
-dma_addr_t dma_addr
--
--[[linux-4.4.1/dma_addr_t]]
-size_t size
--
-struct dma_attrs *attrs
--
--[[linux-4.4.1/dma_attrs]]
**返り値 [#bf91f8a0]
-int
--
**参考 [#s4ff04b1]
*実装 [#jf5874bc]
/**
* dma_mmap_attrs - map a coherent DMA allocation into u...
* @dev: valid struct device pointer, or NULL for ISA an...
* @vma: vm_area_struct describing requested user mapping
* @cpu_addr: kernel CPU-view address returned from dma_...
* @handle: device-view address returned from dma_alloc_...
* @size: size of memory originally requested in dma_all...
* @attrs: attributes of mapping properties requested in...
*
* Map a coherent DMA buffer previously allocated by dma...
* into user space. The coherent DMA buffer must not be...
* driver until the user space mapping has been released.
*/
static inline int
dma_mmap_attrs(struct device *dev, struct vm_area_struct...
dma_addr_t dma_addr, size_t size, struct ...
{
struct dma_map_ops *ops = get_dma_ops(dev);
-
--[[linux-4.4.1/dma_map_ops]]
--[[linux-4.4.1/get_dma_ops()]]
BUG_ON(!ops);
-
--[[linux-4.4.1/BUG_ON()]]
if (ops->mmap)
return ops->mmap(dev, vma, cpu_addr, dma...
return dma_common_mmap(dev, vma, cpu_addr, dma_a...
-
--[[linux-4.4.1/dma_common_mmap()]]
}
*コメント [#k179134a]
終了行:
*参照元 [#dec73efa]
#backlinks
*説明 [#zb4e217f]
-パス: [[linux-4.4.1/include/asm-generic/dma-mapping-comm...
-FIXME: これは何？
--説明
**引数 [#e604a737]
-struct device *dev
--
--[[linux-4.4.1/device]]
-struct vm_area_struct *vma
--
--[[linux-4.4.1/vm_area_struct]]
-void *cpu_addr
--
-dma_addr_t dma_addr
--
--[[linux-4.4.1/dma_addr_t]]
-size_t size
--
-struct dma_attrs *attrs
--
--[[linux-4.4.1/dma_attrs]]
**返り値 [#bf91f8a0]
-int
--
**参考 [#s4ff04b1]
*実装 [#jf5874bc]
/**
* dma_mmap_attrs - map a coherent DMA allocation into u...
* @dev: valid struct device pointer, or NULL for ISA an...
* @vma: vm_area_struct describing requested user mapping
* @cpu_addr: kernel CPU-view address returned from dma_...
* @handle: device-view address returned from dma_alloc_...
* @size: size of memory originally requested in dma_all...
* @attrs: attributes of mapping properties requested in...
*
* Map a coherent DMA buffer previously allocated by dma...
* into user space. The coherent DMA buffer must not be...
* driver until the user space mapping has been released.
*/
static inline int
dma_mmap_attrs(struct device *dev, struct vm_area_struct...
dma_addr_t dma_addr, size_t size, struct ...
{
struct dma_map_ops *ops = get_dma_ops(dev);
-
--[[linux-4.4.1/dma_map_ops]]
--[[linux-4.4.1/get_dma_ops()]]
BUG_ON(!ops);
-
--[[linux-4.4.1/BUG_ON()]]
if (ops->mmap)
return ops->mmap(dev, vma, cpu_addr, dma...
return dma_common_mmap(dev, vma, cpu_addr, dma_a...
-
--[[linux-4.4.1/dma_common_mmap()]]
}
*コメント [#k179134a]
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