41 			       struct videobuf_dma_contig_memory *mem,  in __videobuf_dc_alloc()  argument
44 	mem->size = size;  in __videobuf_dc_alloc()
45 	mem->vaddr = dma_alloc_coherent(dev, mem->size,  in __videobuf_dc_alloc()
46 					&mem->dma_handle, flags);  in __videobuf_dc_alloc()
48 	if (!mem->vaddr) {  in __videobuf_dc_alloc()
49 		dev_err(dev, "memory alloc size %ld failed\n", mem->size);  in __videobuf_dc_alloc()
53 	dev_dbg(dev, "dma mapped data is at %p (%ld)\n", mem->vaddr, mem->size);  in __videobuf_dc_alloc()
59 			       struct videobuf_dma_contig_memory *mem)  in __videobuf_dc_free()  argument
61 	dma_free_coherent(dev, mem->size, mem->vaddr, mem->dma_handle);  in __videobuf_dc_free()
63 	mem->vaddr = NULL;  in __videobuf_dc_free()
87 		struct videobuf_dma_contig_memory *mem;  in videobuf_vm_close()  local
103 			mem = q->bufs[i]->priv;  in videobuf_vm_close()
104 			if (mem) {  in videobuf_vm_close()
111 				MAGIC_CHECK(mem->magic, MAGIC_DC_MEM);  in videobuf_vm_close()
117 					i, mem->vaddr);  in videobuf_vm_close()
119 				__videobuf_dc_free(q->dev, mem);  in videobuf_vm_close()
120 				mem->vaddr = NULL;  in videobuf_vm_close()
144 static void videobuf_dma_contig_user_put(struct videobuf_dma_contig_memory *mem)  in videobuf_dma_contig_user_put()  argument
146 	mem->dma_handle = 0;  in videobuf_dma_contig_user_put()
147 	mem->size = 0;  in videobuf_dma_contig_user_put()
160 static int videobuf_dma_contig_user_get(struct videobuf_dma_contig_memory *mem,  in videobuf_dma_contig_user_get()  argument
171 	mem->size = PAGE_ALIGN(vb->size + offset);  in videobuf_dma_contig_user_get()
180 	if ((vb->baddr + mem->size) > vma->vm_end)  in videobuf_dma_contig_user_get()
187 	while (pages_done < (mem->size >> PAGE_SHIFT)) {  in videobuf_dma_contig_user_get()
193 			mem->dma_handle = (this_pfn << PAGE_SHIFT) + offset;  in videobuf_dma_contig_user_get()
213 	struct videobuf_dma_contig_memory *mem;  in __videobuf_alloc()  local
216 	vb = kzalloc(size + sizeof(*mem), GFP_KERNEL);  in __videobuf_alloc()
219 		mem = vb->priv;  in __videobuf_alloc()
220 		mem->magic = MAGIC_DC_MEM;  in __videobuf_alloc()
228 	struct videobuf_dma_contig_memory *mem = buf->priv;  in __videobuf_to_vaddr()  local
230 	BUG_ON(!mem);  in __videobuf_to_vaddr()
231 	MAGIC_CHECK(mem->magic, MAGIC_DC_MEM);  in __videobuf_to_vaddr()
233 	return mem->vaddr;  in __videobuf_to_vaddr()
240 	struct videobuf_dma_contig_memory *mem = vb->priv;  in __videobuf_iolock()  local
242 	BUG_ON(!mem);  in __videobuf_iolock()
243 	MAGIC_CHECK(mem->magic, MAGIC_DC_MEM);  in __videobuf_iolock()
250 		if (!mem->vaddr) {  in __videobuf_iolock()
260 			return videobuf_dma_contig_user_get(mem, vb);  in __videobuf_iolock()
263 		if (__videobuf_dc_alloc(q->dev, mem, PAGE_ALIGN(vb->size),  in __videobuf_iolock()
280 	struct videobuf_dma_contig_memory *mem;  in __videobuf_mmap_mapper()  local
297 	mem = buf->priv;  in __videobuf_mmap_mapper()
298 	BUG_ON(!mem);  in __videobuf_mmap_mapper()
299 	MAGIC_CHECK(mem->magic, MAGIC_DC_MEM);  in __videobuf_mmap_mapper()
301 	if (__videobuf_dc_alloc(q->dev, mem, PAGE_ALIGN(buf->bsize),  in __videobuf_mmap_mapper()
317 	retval = vm_iomap_memory(vma, mem->dma_handle, size);  in __videobuf_mmap_mapper()
321 		dma_free_coherent(q->dev, mem->size,  in __videobuf_mmap_mapper()
322 				  mem->vaddr, mem->dma_handle);  in __videobuf_mmap_mapper()
368 	struct videobuf_dma_contig_memory *mem = buf->priv;  in videobuf_to_dma_contig()  local
370 	BUG_ON(!mem);  in videobuf_to_dma_contig()
371 	MAGIC_CHECK(mem->magic, MAGIC_DC_MEM);  in videobuf_to_dma_contig()
373 	return mem->dma_handle;  in videobuf_to_dma_contig()
380 	struct videobuf_dma_contig_memory *mem = buf->priv;  in videobuf_dma_contig_free()  local
391 	if (!mem)  in videobuf_dma_contig_free()
394 	MAGIC_CHECK(mem->magic, MAGIC_DC_MEM);  in videobuf_dma_contig_free()
398 		videobuf_dma_contig_user_put(mem);  in videobuf_dma_contig_free()
403 	if (mem->vaddr) {  in videobuf_dma_contig_free()
404 		__videobuf_dc_free(q->dev, mem);  in videobuf_dma_contig_free()
405 		mem->vaddr = NULL;  in videobuf_dma_contig_free()