dp: thread: only grant access to thread when userspace is used

Kernel threads have access to all the memory, no need to additionally
grant access to them.

Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>

Author: lyakh

src/schedule/zephyr_dp_schedule.c

@@ -60,9 +60,7 @@ void scheduler_dp_unlock(unsigned int key)
 
 void scheduler_dp_grant(k_tid_t thread_id, uint16_t core)
 {
-#if CONFIG_USERSPACE
 	k_thread_access_grant(thread_id, &dp_lock[core]);
-#endif
 }
 
 /* dummy LL task - to start LL on secondary cores */

src/schedule/zephyr_dp_schedule_thread.c

@@ -269,9 +269,6 @@ int scheduler_dp_task_init(struct task **task,
 					   stack_size, dp_thread_fn, *task, NULL, NULL,
 					   CONFIG_DP_THREAD_PRIORITY, (*task)->flags, K_FOREVER);
 
-	k_thread_access_grant(pdata->thread_id, pdata->event);
-	scheduler_dp_grant(pdata->thread_id, cpu_get_id());
-
 	/* pin the thread to specific core */
 	ret = k_thread_cpu_pin(pdata->thread_id, core);
 	if (ret < 0) {
@@ -280,6 +277,9 @@ int scheduler_dp_task_init(struct task **task,
 	}
 
 #ifdef CONFIG_USERSPACE
+	k_thread_access_grant(pdata->thread_id, pdata->event);
+	scheduler_dp_grant(pdata->thread_id, cpu_get_id());
+
 	if ((*task)->flags & K_USER) {
 		ret = user_memory_init_shared(pdata->thread_id, pdata->mod);
 		if (ret < 0) {