129 	struct sof_mtrace_core_data *core_data = inode->i_private;  in sof_ipc4_mtrace_dfs_open()  local
132 	mutex_lock(&core_data->buffer_lock);  in sof_ipc4_mtrace_dfs_open()
134 	if (core_data->log_buffer) {  in sof_ipc4_mtrace_dfs_open()
143 	core_data->log_buffer = kmalloc(SOF_MTRACE_SLOT_SIZE, GFP_KERNEL);  in sof_ipc4_mtrace_dfs_open()
144 	if (!core_data->log_buffer) {  in sof_ipc4_mtrace_dfs_open()
152 		kfree(core_data->log_buffer);  in sof_ipc4_mtrace_dfs_open()
157 	mutex_unlock(&core_data->buffer_lock);  in sof_ipc4_mtrace_dfs_open()
162 static bool sof_wait_mtrace_avail(struct sof_mtrace_core_data *core_data)  in sof_wait_mtrace_avail()  argument
167 	if (core_data->host_read_ptr != core_data->dsp_write_ptr)  in sof_wait_mtrace_avail()
173 	add_wait_queue(&core_data->trace_sleep, &wait);  in sof_wait_mtrace_avail()
179 	remove_wait_queue(&core_data->trace_sleep, &wait);  in sof_wait_mtrace_avail()
181 	if (core_data->host_read_ptr != core_data->dsp_write_ptr)  in sof_wait_mtrace_avail()
190 	struct sof_mtrace_core_data *core_data = file->private_data;  in sof_ipc4_mtrace_dfs_read()  local
192 	struct snd_sof_dev *sdev = core_data->sdev;  in sof_ipc4_mtrace_dfs_read()
194 	void *log_buffer = core_data->log_buffer;  in sof_ipc4_mtrace_dfs_read()
206 	if (!sof_wait_mtrace_avail(core_data)) {  in sof_ipc4_mtrace_dfs_read()
215 	if (core_data->slot_offset == INVALID_SLOT_OFFSET)  in sof_ipc4_mtrace_dfs_read()
219 	log_buffer_offset =  core_data->slot_offset + (sizeof(u32) * 2);  in sof_ipc4_mtrace_dfs_read()
223 	read_ptr = core_data->host_read_ptr;  in sof_ipc4_mtrace_dfs_read()
224 	write_ptr = core_data->dsp_write_ptr;  in sof_ipc4_mtrace_dfs_read()
244 			core_data->id, read_ptr, write_ptr, avail);  in sof_ipc4_mtrace_dfs_read()
274 	sof_mailbox_write(sdev, core_data->slot_offset, &read_ptr, sizeof(read_ptr));  in sof_ipc4_mtrace_dfs_read()
278 		core_data->host_read_ptr = read_ptr;  in sof_ipc4_mtrace_dfs_read()
291 	struct sof_mtrace_core_data *core_data = inode->i_private;  in sof_ipc4_mtrace_dfs_release()  local
295 	mutex_lock(&core_data->buffer_lock);  in sof_ipc4_mtrace_dfs_release()
296 	kfree(core_data->log_buffer);  in sof_ipc4_mtrace_dfs_release()
297 	core_data->log_buffer = NULL;  in sof_ipc4_mtrace_dfs_release()
298 	mutex_unlock(&core_data->buffer_lock);  in sof_ipc4_mtrace_dfs_release()
492 		struct sof_mtrace_core_data *core_data = &priv->cores[i];  in ipc4_mtrace_disable()  local
494 		core_data->host_read_ptr = 0;  in ipc4_mtrace_disable()
495 		core_data->dsp_write_ptr = 0;  in ipc4_mtrace_disable()
496 		wake_up(&core_data->trace_sleep);  in ipc4_mtrace_disable()
509 	struct sof_mtrace_core_data *core_data;  in sof_mtrace_find_core_slots()  local
528 			core_data = &priv->cores[core];  in sof_mtrace_find_core_slots()
535 			core_data->slot_offset = sdev->debug_box.offset;  in sof_mtrace_find_core_slots()
536 			core_data->slot_offset += SOF_MTRACE_SLOT_SIZE * (i + 1);  in sof_mtrace_find_core_slots()
538 			if (core_data->delayed_pos_update) {  in sof_mtrace_find_core_slots()
540 				core_data->delayed_pos_update = false;  in sof_mtrace_find_core_slots()
579 		struct sof_mtrace_core_data *core_data = &priv->cores[i];  in ipc4_mtrace_init()  local
581 		init_waitqueue_head(&core_data->trace_sleep);  in ipc4_mtrace_init()
582 		mutex_init(&core_data->buffer_lock);  in ipc4_mtrace_init()
583 		core_data->sdev = sdev;  in ipc4_mtrace_init()
584 		core_data->id = i;  in ipc4_mtrace_init()
625 	struct sof_mtrace_core_data *core_data;  in sof_ipc4_mtrace_update_pos()  local
634 	core_data = &priv->cores[core];  in sof_ipc4_mtrace_update_pos()
636 	if (core_data->slot_offset == INVALID_SLOT_OFFSET) {  in sof_ipc4_mtrace_update_pos()
637 		core_data->delayed_pos_update = true;  in sof_ipc4_mtrace_update_pos()
642 	sof_mailbox_read(sdev, core_data->slot_offset + sizeof(u32),  in sof_ipc4_mtrace_update_pos()
643 			 &core_data->dsp_write_ptr, 4);  in sof_ipc4_mtrace_update_pos()
644 	core_data->dsp_write_ptr -= core_data->dsp_write_ptr % 4;  in sof_ipc4_mtrace_update_pos()
648 			core, core_data->host_read_ptr, core_data->dsp_write_ptr);  in sof_ipc4_mtrace_update_pos()
650 	wake_up(&core_data->trace_sleep);  in sof_ipc4_mtrace_update_pos()