86 			      char *buf)  in dmabounce_show()  argument
89 	return sprintf(buf, "%lu %lu %lu %lu %lu %lu\n",  in dmabounce_show()
108 	struct safe_buffer *buf;  in alloc_safe_buffer()  local
124 	buf = kmalloc(sizeof(struct safe_buffer), GFP_ATOMIC);  in alloc_safe_buffer()
125 	if (buf == NULL) {  in alloc_safe_buffer()
130 	buf->ptr = ptr;  in alloc_safe_buffer()
131 	buf->size = size;  in alloc_safe_buffer()
132 	buf->direction = dir;  in alloc_safe_buffer()
133 	buf->pool = pool;  in alloc_safe_buffer()
136 		buf->safe = dma_pool_alloc(pool->pool, GFP_ATOMIC,  in alloc_safe_buffer()
137 					   &buf->safe_dma_addr);  in alloc_safe_buffer()
139 		buf->safe = dma_alloc_coherent(dev, size, &buf->safe_dma_addr,  in alloc_safe_buffer()
143 	if (buf->safe == NULL) {  in alloc_safe_buffer()
147 		kfree(buf);  in alloc_safe_buffer()
158 	list_add(&buf->node, &device_info->safe_buffers);  in alloc_safe_buffer()
161 	return buf;  in alloc_safe_buffer()
185 free_safe_buffer(struct dmabounce_device_info *device_info, struct safe_buffer *buf)  in free_safe_buffer()  argument
189 	dev_dbg(device_info->dev, "%s(buf=%p)\n", __func__, buf);  in free_safe_buffer()
193 	list_del(&buf->node);  in free_safe_buffer()
197 	if (buf->pool)  in free_safe_buffer()
198 		dma_pool_free(buf->pool->pool, buf->safe, buf->safe_dma_addr);  in free_safe_buffer()
200 		dma_free_coherent(device_info->dev, buf->size, buf->safe,  in free_safe_buffer()
201 				    buf->safe_dma_addr);  in free_safe_buffer()
203 	kfree(buf);  in free_safe_buffer()
248 	struct safe_buffer *buf;  in map_single()  local
253 	buf = alloc_safe_buffer(device_info, ptr, size, dir);  in map_single()
254 	if (buf == NULL) {  in map_single()
261 		__func__, buf->ptr, virt_to_dma(dev, buf->ptr),  in map_single()
262 		buf->safe, buf->safe_dma_addr);  in map_single()
267 			__func__, ptr, buf->safe, size);  in map_single()
268 		memcpy(buf->safe, ptr, size);  in map_single()
271 	return buf->safe_dma_addr;  in map_single()
274 static inline void unmap_single(struct device *dev, struct safe_buffer *buf,  in unmap_single()  argument
278 	BUG_ON(buf->size != size);  in unmap_single()
279 	BUG_ON(buf->direction != dir);  in unmap_single()
282 		__func__, buf->ptr, virt_to_dma(dev, buf->ptr),  in unmap_single()
283 		buf->safe, buf->safe_dma_addr);  in unmap_single()
289 		void *ptr = buf->ptr;  in unmap_single()
292 			__func__, buf->safe, ptr, size);  in unmap_single()
293 		memcpy(ptr, buf->safe, size);  in unmap_single()
302 	free_safe_buffer(dev->archdata.dmabounce, buf);  in unmap_single()
351 	struct safe_buffer *buf;  in dmabounce_unmap_page()  local
356 	buf = find_safe_buffer_dev(dev, dma_addr, __func__);  in dmabounce_unmap_page()
357 	if (!buf) {  in dmabounce_unmap_page()
362 	unmap_single(dev, buf, size, dir, attrs);  in dmabounce_unmap_page()
368 	struct safe_buffer *buf;  in __dmabounce_sync_for_cpu()  local
374 	buf = find_safe_buffer_dev(dev, addr, __func__);  in __dmabounce_sync_for_cpu()
375 	if (!buf)  in __dmabounce_sync_for_cpu()
378 	off = addr - buf->safe_dma_addr;  in __dmabounce_sync_for_cpu()
380 	BUG_ON(buf->direction != dir);  in __dmabounce_sync_for_cpu()
383 		__func__, buf->ptr, virt_to_dma(dev, buf->ptr), off,  in __dmabounce_sync_for_cpu()
384 		buf->safe, buf->safe_dma_addr);  in __dmabounce_sync_for_cpu()
390 			__func__, buf->safe + off, buf->ptr + off, sz);  in __dmabounce_sync_for_cpu()
391 		memcpy(buf->ptr + off, buf->safe + off, sz);  in __dmabounce_sync_for_cpu()
408 	struct safe_buffer *buf;  in __dmabounce_sync_for_device()  local
414 	buf = find_safe_buffer_dev(dev, addr, __func__);  in __dmabounce_sync_for_device()
415 	if (!buf)  in __dmabounce_sync_for_device()
418 	off = addr - buf->safe_dma_addr;  in __dmabounce_sync_for_device()
420 	BUG_ON(buf->direction != dir);  in __dmabounce_sync_for_device()
423 		__func__, buf->ptr, virt_to_dma(dev, buf->ptr), off,  in __dmabounce_sync_for_device()
424 		buf->safe, buf->safe_dma_addr);  in __dmabounce_sync_for_device()
430 			__func__,buf->ptr + off, buf->safe + off, sz);  in __dmabounce_sync_for_device()
431 		memcpy(buf->safe + off, buf->ptr + off, sz);  in __dmabounce_sync_for_device()