38 			       struct videobuf_dma_contig_memory *mem,  in __videobuf_dc_alloc()  argument
41 	mem->size = size;  in __videobuf_dc_alloc()
42 	mem->vaddr = dma_alloc_coherent(dev, mem->size, &mem->dma_handle,  in __videobuf_dc_alloc()
44 	if (!mem->vaddr) {  in __videobuf_dc_alloc()
45 		dev_err(dev, "memory alloc size %ld failed\n", mem->size);  in __videobuf_dc_alloc()
49 	dev_dbg(dev, "dma mapped data is at %p (%ld)\n", mem->vaddr, mem->size);  in __videobuf_dc_alloc()
55 			       struct videobuf_dma_contig_memory *mem)  in __videobuf_dc_free()  argument
57 	dma_free_coherent(dev, mem->size, mem->vaddr, mem->dma_handle);  in __videobuf_dc_free()
59 	mem->vaddr = NULL;  in __videobuf_dc_free()
83 		struct videobuf_dma_contig_memory *mem;  in videobuf_vm_close()  local
99 			mem = q->bufs[i]->priv;  in videobuf_vm_close()
100 			if (mem) {  in videobuf_vm_close()
107 				MAGIC_CHECK(mem->magic, MAGIC_DC_MEM);  in videobuf_vm_close()
113 					i, mem->vaddr);  in videobuf_vm_close()
115 				__videobuf_dc_free(q->dev, mem);  in videobuf_vm_close()
116 				mem->vaddr = NULL;  in videobuf_vm_close()
140 static void videobuf_dma_contig_user_put(struct videobuf_dma_contig_memory *mem)  in videobuf_dma_contig_user_put()  argument
142 	mem->dma_handle = 0;  in videobuf_dma_contig_user_put()
143 	mem->size = 0;  in videobuf_dma_contig_user_put()
156 static int videobuf_dma_contig_user_get(struct videobuf_dma_contig_memory *mem,  in videobuf_dma_contig_user_get()  argument
168 	mem->size = PAGE_ALIGN(vb->size + offset);  in videobuf_dma_contig_user_get()
177 	if ((untagged_baddr + mem->size) > vma->vm_end)  in videobuf_dma_contig_user_get()
184 	while (pages_done < (mem->size >> PAGE_SHIFT)) {  in videobuf_dma_contig_user_get()
190 			mem->dma_handle = (this_pfn << PAGE_SHIFT) + offset;  in videobuf_dma_contig_user_get()
210 	struct videobuf_dma_contig_memory *mem;  in __videobuf_alloc()  local
213 	vb = kzalloc(size + sizeof(*mem), GFP_KERNEL);  in __videobuf_alloc()
216 		mem = vb->priv;  in __videobuf_alloc()
217 		mem->magic = MAGIC_DC_MEM;  in __videobuf_alloc()
225 	struct videobuf_dma_contig_memory *mem = buf->priv;  in __videobuf_to_vaddr()  local
227 	BUG_ON(!mem);  in __videobuf_to_vaddr()
228 	MAGIC_CHECK(mem->magic, MAGIC_DC_MEM);  in __videobuf_to_vaddr()
230 	return mem->vaddr;  in __videobuf_to_vaddr()
237 	struct videobuf_dma_contig_memory *mem = vb->priv;  in __videobuf_iolock()  local
239 	BUG_ON(!mem);  in __videobuf_iolock()
240 	MAGIC_CHECK(mem->magic, MAGIC_DC_MEM);  in __videobuf_iolock()
247 		if (!mem->vaddr) {  in __videobuf_iolock()
257 			return videobuf_dma_contig_user_get(mem, vb);  in __videobuf_iolock()
260 		if (__videobuf_dc_alloc(q->dev, mem, PAGE_ALIGN(vb->size)))  in __videobuf_iolock()
276 	struct videobuf_dma_contig_memory *mem;  in __videobuf_mmap_mapper()  local
292 	mem = buf->priv;  in __videobuf_mmap_mapper()
293 	BUG_ON(!mem);  in __videobuf_mmap_mapper()
294 	MAGIC_CHECK(mem->magic, MAGIC_DC_MEM);  in __videobuf_mmap_mapper()
296 	if (__videobuf_dc_alloc(q->dev, mem, PAGE_ALIGN(buf->bsize)))  in __videobuf_mmap_mapper()
306 	retval = dma_mmap_coherent(q->dev, vma, mem->vaddr, mem->dma_handle,  in __videobuf_mmap_mapper()
307 				   mem->size);  in __videobuf_mmap_mapper()
311 		dma_free_coherent(q->dev, mem->size,  in __videobuf_mmap_mapper()
312 				  mem->vaddr, mem->dma_handle);  in __videobuf_mmap_mapper()
358 	struct videobuf_dma_contig_memory *mem = buf->priv;  in videobuf_to_dma_contig()  local
360 	BUG_ON(!mem);  in videobuf_to_dma_contig()
361 	MAGIC_CHECK(mem->magic, MAGIC_DC_MEM);  in videobuf_to_dma_contig()
363 	return mem->dma_handle;  in videobuf_to_dma_contig()
370 	struct videobuf_dma_contig_memory *mem = buf->priv;  in videobuf_dma_contig_free()  local
381 	if (!mem)  in videobuf_dma_contig_free()
384 	MAGIC_CHECK(mem->magic, MAGIC_DC_MEM);  in videobuf_dma_contig_free()
388 		videobuf_dma_contig_user_put(mem);  in videobuf_dma_contig_free()
393 	if (mem->vaddr) {  in videobuf_dma_contig_free()
394 		__videobuf_dc_free(q->dev, mem);  in videobuf_dma_contig_free()
395 		mem->vaddr = NULL;  in videobuf_dma_contig_free()