linux-4.4.1/dmam_alloc_noncoherent()
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開始行:
*参照元 [#q9b4dc96]
#backlinks
*説明 [#ec2c53cd]
-パス: [[linux-4.4.1/drivers/base/dma-mapping.c]]
-FIXME: これは何？
--説明
**引数 [#g52f971b]
-struct device *dev
--
--[[linux-4.4.1/device]]
-size_t size
--
-dma_addr_t *dma_handle
--
--[[linux-4.4.1/dma_addr_t]]
-gfp_t gfp
--
--[[linux-4.4.1/gfp_t]]
**返り値 [#med6883c]
-void *
--
**参考 [#eafe2657]
*実装 [#p6f716dc]
/**
* dmam_alloc_non_coherent - Managed dma_alloc_non_coher...
* @dev: Device to allocate non_coherent memory for
* @size: Size of allocation
* @dma_handle: Out argument for allocated DMA handle
* @gfp: Allocation flags
*
* Managed dma_alloc_non_coherent(). Memory allocated u...
* function will be automatically released on driver det...
*
* RETURNS:
* Pointer to allocated memory on success, NULL on failu...
*/
void *dmam_alloc_noncoherent(struct device *dev, size_t ...
dma_addr_t *dma_handle, gfp...
{
struct dma_devres *dr;
void *vaddr;
-
--[[linux-4.4.1/dma_devres]]
dr = devres_alloc(dmam_noncoherent_release, size...
if (!dr)
return NULL;
-
--[[linux-4.4.1/devres_alloc()]]
--[[linux-4.4.1/dmam_noncoherent_release()]]
vaddr = dma_alloc_noncoherent(dev, size, dma_han...
if (!vaddr) {
devres_free(dr);
return NULL;
}
-
--[[linux-4.4.1/dma_alloc_noncoherent()]]
dr->vaddr = vaddr;
dr->dma_handle = *dma_handle;
dr->size = size;
devres_add(dev, dr);
-
--[[linux-4.4.1/devres_add()]]
return vaddr;
}
EXPORT_SYMBOL(dmam_alloc_noncoherent);
-
--[[linux-4.4.1/EXPORT_SYMBOL()]]
*コメント [#d5defd86]
終了行:
*参照元 [#q9b4dc96]
#backlinks
*説明 [#ec2c53cd]
-パス: [[linux-4.4.1/drivers/base/dma-mapping.c]]
-FIXME: これは何？
--説明
**引数 [#g52f971b]
-struct device *dev
--
--[[linux-4.4.1/device]]
-size_t size
--
-dma_addr_t *dma_handle
--
--[[linux-4.4.1/dma_addr_t]]
-gfp_t gfp
--
--[[linux-4.4.1/gfp_t]]
**返り値 [#med6883c]
-void *
--
**参考 [#eafe2657]
*実装 [#p6f716dc]
/**
* dmam_alloc_non_coherent - Managed dma_alloc_non_coher...
* @dev: Device to allocate non_coherent memory for
* @size: Size of allocation
* @dma_handle: Out argument for allocated DMA handle
* @gfp: Allocation flags
*
* Managed dma_alloc_non_coherent(). Memory allocated u...
* function will be automatically released on driver det...
*
* RETURNS:
* Pointer to allocated memory on success, NULL on failu...
*/
void *dmam_alloc_noncoherent(struct device *dev, size_t ...
dma_addr_t *dma_handle, gfp...
{
struct dma_devres *dr;
void *vaddr;
-
--[[linux-4.4.1/dma_devres]]
dr = devres_alloc(dmam_noncoherent_release, size...
if (!dr)
return NULL;
-
--[[linux-4.4.1/devres_alloc()]]
--[[linux-4.4.1/dmam_noncoherent_release()]]
vaddr = dma_alloc_noncoherent(dev, size, dma_han...
if (!vaddr) {
devres_free(dr);
return NULL;
}
-
--[[linux-4.4.1/dma_alloc_noncoherent()]]
dr->vaddr = vaddr;
dr->dma_handle = *dma_handle;
dr->size = size;
devres_add(dev, dr);
-
--[[linux-4.4.1/devres_add()]]
return vaddr;
}
EXPORT_SYMBOL(dmam_alloc_noncoherent);
-
--[[linux-4.4.1/EXPORT_SYMBOL()]]
*コメント [#d5defd86]
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