259 struct sst_dsp {  struct
262 	struct sst_dsp_device *sst_dev;  argument
263 	spinlock_t spinlock;	/* IPC locking */
264 	struct mutex mutex;	/* DSP FW lock */
265 	struct device *dev;
266 	struct device *dma_dev;
267 	void *thread_context;
268 	int irq;
269 	u32 id;
272 	struct list_head used_block_list;
273 	struct list_head free_block_list;
276 	struct sst_ops *ops;
279 	struct dentry *debugfs_root;
305 static inline void sst_dsp_write(struct sst_dsp *sst, void *src,  in sst_dsp_write()  argument