Esempi in C++ (Cpp) per dma_generic_alloc_coherent

Esempio n. 1

File: pci-swiotlb.c Progetto: 325116067/semc-qsd8x50

static void *x86_swiotlb_alloc_coherent(struct device *hwdev, size_t size,
					dma_addr_t *dma_handle, gfp_t flags)
{
	void *vaddr;

	vaddr = dma_generic_alloc_coherent(hwdev, size, dma_handle, flags);
	if (vaddr)
		return vaddr;

	return swiotlb_alloc_coherent(hwdev, size, dma_handle, flags);
}

Esempio n. 2

File: pci-swiotlb.c Progetto: AK101111/linux

void *x86_swiotlb_alloc_coherent(struct device *hwdev, size_t size,
					dma_addr_t *dma_handle, gfp_t flags,
					unsigned long attrs)
{
	void *vaddr;

	/*
	 * Don't print a warning when the first allocation attempt fails.
	 * swiotlb_alloc_coherent() will print a warning when the DMA
	 * memory allocation ultimately failed.
	 */
	flags |= __GFP_NOWARN;

	vaddr = dma_generic_alloc_coherent(hwdev, size, dma_handle, flags,
					   attrs);
	if (vaddr)
		return vaddr;

	return swiotlb_alloc_coherent(hwdev, size, dma_handle, flags);
}