25 	if (dev && dev->dma_mem)  in dev_get_coherent_memory()
26 		return dev->dma_mem;  in dev_get_coherent_memory()
41 	struct dma_coherent_mem *dma_mem;  in dma_init_coherent_memory()  local
52 	dma_mem = kzalloc(sizeof(struct dma_coherent_mem), GFP_KERNEL);  in dma_init_coherent_memory()
53 	if (!dma_mem)  in dma_init_coherent_memory()
55 	dma_mem->bitmap = bitmap_zalloc(pages, GFP_KERNEL);  in dma_init_coherent_memory()
56 	if (!dma_mem->bitmap)  in dma_init_coherent_memory()
59 	dma_mem->virt_base = mem_base;  in dma_init_coherent_memory()
60 	dma_mem->device_base = device_addr;  in dma_init_coherent_memory()
61 	dma_mem->pfn_base = PFN_DOWN(phys_addr);  in dma_init_coherent_memory()
62 	dma_mem->size = pages;  in dma_init_coherent_memory()
63 	dma_mem->use_dev_dma_pfn_offset = use_dma_pfn_offset;  in dma_init_coherent_memory()
64 	spin_lock_init(&dma_mem->spinlock);  in dma_init_coherent_memory()
66 	return dma_mem;  in dma_init_coherent_memory()
69 	kfree(dma_mem);  in dma_init_coherent_memory()
93 	if (dev->dma_mem)  in dma_assign_coherent_memory()
96 	dev->dma_mem = mem;  in dma_assign_coherent_memory()
136 		_dma_release_coherent_memory(dev->dma_mem);  in dma_release_coherent_memory()
137 		dev->dma_mem = NULL;  in dma_release_coherent_memory()
355 		dev->dma_mem = NULL;  in rmem_dma_device_release()