msm: adsprpc: add ioctl control for thread exit

Add ioctl control support to exit notif and async
threads.

Change-Id: Ifc7212fd84bdba46724252e00e1d479865cefc64
Signed-off-by: nishant chaubey <[email protected]>

dsp/adsprpc.c

@@ -3230,6 +3230,10 @@ read_async_job:
 		err = -EBADF;
 		goto bail;
 	}
+	if (fl->exit_async) {
+		err = -EFAULT;
+		goto bail;
+	}
 	VERIFY(err, 0 == (err = interrupted));
 	if (err)
 		goto bail;
@@ -3312,6 +3316,10 @@ read_notif_status:
 		err = -EBADF;
 		goto bail;
 	}
+	if (fl->exit_notif) {
+		err = -EFAULT;
+		goto bail;
+	}
 	VERIFY(err, 0 == (err = interrupted));
 	if (err)
 		goto bail;
@@ -5900,6 +5908,8 @@ static int fastrpc_device_open(struct inode *inode, struct file *filp)
 	fl->dsp_process_state = PROCESS_CREATE_DEFAULT;
 	fl->is_unsigned_pd = false;
 	fl->is_compat = false;
+	fl->exit_notif = false;
+	fl->exit_async = false;
 	init_completion(&fl->work);
 	fl->file_close = FASTRPC_PROCESS_DEFAULT_STATE;
 	filp->private_data = fl;
@@ -6109,6 +6119,7 @@ int fastrpc_internal_control(struct fastrpc_file *fl,
 	struct fastrpc_apps *me = &gfa;
 	int sessionid = 0;
 	u32 silver_core_count = me->silvercores.corecount, ii = 0, cpu;
+	unsigned long flags = 0;
 
 	VERIFY(err, !IS_ERR_OR_NULL(fl) && !IS_ERR_OR_NULL(fl->apps));
 	if (err) {
@@ -6209,6 +6220,20 @@ int fastrpc_internal_control(struct fastrpc_file *fl,
 	case FASTRPC_CONTROL_SMMU:
 		fl->sharedcb = cp->smmu.sharedcb;
 		break;
+	case FASTRPC_CONTROL_ASYNC_WAKE:
+		fl->exit_async = true;
+		spin_lock_irqsave(&fl->aqlock, flags);
+		atomic_add(1, &fl->async_queue_job_count);
+		wake_up_interruptible(&fl->async_wait_queue);
+		spin_unlock_irqrestore(&fl->aqlock, flags);
+		break;
+	case FASTRPC_CONTROL_NOTIF_WAKE:
+		fl->exit_notif = true;
+		spin_lock_irqsave(&fl->proc_state_notif.nqlock, flags);
+		atomic_add(1, &fl->proc_state_notif.notif_queue_count);
+		wake_up_interruptible(&fl->proc_state_notif.notif_wait_queue);
+		spin_unlock_irqrestore(&fl->proc_state_notif.nqlock, flags);
+		break;
 	default:
 		err = -EBADRQC;
 		break;

dsp/adsprpc_shared.h

@@ -491,6 +491,8 @@ enum fastrpc_control_type {
 /* Clean process on DSP */
 	FASTRPC_CONTROL_DSPPROCESS_CLEAN	=	6,
 	FASTRPC_CONTROL_RPC_POLL = 7,
+	FASTRPC_CONTROL_ASYNC_WAKE = 8,
+	FASTRPC_CONTROL_NOTIF_WAKE = 9,
 };
 
 struct fastrpc_ctrl_latency {
@@ -1098,6 +1100,10 @@ struct fastrpc_file {
 	spinlock_t dspsignals_lock;
 	struct mutex signal_create_mutex;
 	struct completion shutdown;
+	/* Flag to indicate notif thread exit requested*/
+	bool exit_notif;
+	/* Flag to indicate async thread exit requested*/
+	bool exit_async;
 };
 
 union fastrpc_ioctl_param {