build: remove scheduling-related XTOS remainders

Remove XTOS scheduling and related inintialisation code.

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

Author: lyakh

src/init/init.c

@@ -90,8 +90,6 @@ static inline void lp_sram_unpack(void)
 
 #if CONFIG_MULTICORE
 
-#ifdef __ZEPHYR__
-
 static bool check_restore(void)
 {
 	struct idc *idc = *idc_get();
@@ -107,75 +105,11 @@ static bool check_restore(void)
 
 static inline int secondary_core_restore(void) { return 0; };
 
-#else
-
-static bool check_restore(void)
-{
-	struct idc *idc = *idc_get();
-	struct task *task = *task_main_get();
-	struct notify *notifier = *arch_notify_get();
-	struct schedulers *schedulers = *arch_schedulers_get();
-
-	/* check whether basic core structures has been already allocated. If they
-	 * are available in memory, it means that this is not cold boot and memory
-	 * has not been powered off.
-	 */
-	return !!idc && !!task && !!notifier && !!schedulers;
-}
-
-static int secondary_core_restore(void)
-{
-	int err;
-
-	trace_point(TRACE_BOOT_PLATFORM_IRQ);
-
-	/* initialize interrupts */
-	platform_interrupt_init();
-
-	/* As the memory was not turned of in D0->D0ix and basic structures are
-	 * already allocated, in restore process (D0ix->D0) we have only to
-	 * register and enable required interrupts (it is done in
-	 * schedulers_restore() and idc_restore()).
-	 */
-
-	/* restore schedulers i.e. register and enable scheduler interrupts */
-	trace_point(TRACE_BOOT_PLATFORM_SCHED);
-	err = schedulers_restore();
-	if (err < 0)
-		return err;
-
-	/* restore idc i.e. register and enable idc interrupts */
-	trace_point(TRACE_BOOT_PLATFORM_IDC);
-	err = idc_restore();
-	if (err < 0)
-		return err;
-
-	trace_point(TRACE_BOOT_PLATFORM);
-
-	/* In restore case (D0ix->D0 flow) we do not have to invoke here
-	 * schedule_task(*task_main_get(), 0, UINT64_MAX) as it is done in
-	 * cold boot process (see end of secondary_core_init() function),
-	 * because in restore case memory has not been powered off and task_main
-	 * is already added into scheduler list.
-	 */
-	while (1)
-		wait_for_interrupt(0);
-}
-
-#endif
-
 __cold int secondary_core_init(struct sof *sof)
 {
 	int err;
 	struct ll_schedule_domain *dma_domain;
 
-#ifndef __ZEPHYR__
-	/* init architecture */
-	trace_point(TRACE_BOOT_ARCH);
-	err = arch_init();
-	if (err < 0)
-		sof_panic(SOF_IPC_PANIC_ARCH);
-#endif
 	/* check whether we are in a cold boot process or not (e.g. D0->D0ix
 	 * flow when primary core disables all secondary cores). If not, we do
 	 * not have allocate basic structures like e.g. schedulers, notifier,
@@ -188,13 +122,6 @@ __cold int secondary_core_init(struct sof *sof)
 	trace_point(TRACE_BOOT_SYS_NOTIFIER);
 	init_system_notify(sof);
 
-#ifndef __ZEPHYR__
-	/* interrupts need to be initialized before any usage */
-	trace_point(TRACE_BOOT_PLATFORM_IRQ);
-	platform_interrupt_init();
-
-	scheduler_init_edf();
-#endif
 	trace_point(TRACE_BOOT_PLATFORM_SCHED);
 	scheduler_init_ll(timer_domain_get());
 
@@ -227,11 +154,6 @@ __cold int secondary_core_init(struct sof *sof)
 
 	trace_point(TRACE_BOOT_PLATFORM);
 
-#ifndef __ZEPHYR__
-	/* task initialized in edf_scheduler_init */
-	schedule_task(*task_main_get(), 0, UINT64_MAX);
-#endif
-
 	return err;
 }
 
@@ -273,20 +195,6 @@ __cold static int primary_core_init(int argc, char *argv[], struct sof *sof)
 	sof->argc = argc;
 	sof->argv = argv;
 
-#ifndef __ZEPHYR__
-	/* init architecture */
-	trace_point(TRACE_BOOT_ARCH);
-	if (arch_init() < 0)
-		sof_panic(SOF_IPC_PANIC_ARCH);
-
-	/* initialise system services */
-	trace_point(TRACE_BOOT_SYS_HEAP);
-	platform_init_memmap(sof);
-	init_heap(sof);
-
-	interrupt_init(sof);
-#endif /* __ZEPHYR__ */
-
 #if defined(CONFIG_ZEPHYR_LOG) && !defined(CONFIG_LOG_MODE_MINIMAL)
 	log_set_timestamp_func(default_get_timestamp,
 			       sys_clock_hw_cycles_per_sec());
@@ -338,27 +246,6 @@ __cold static int primary_core_init(int argc, char *argv[], struct sof *sof)
 	return task_main_start(sof);
 }
 
-#ifndef __ZEPHYR__
-int main(int argc, char *argv[])
-{
-	int err = 0;
-
-	trace_point(TRACE_BOOT_START);
-
-	if (cpu_get_id() == PLATFORM_PRIMARY_CORE_ID)
-		err = primary_core_init(argc, argv, &sof);
-#if CONFIG_MULTICORE
-	else
-		err = secondary_core_init(&sof);
-#endif
-
-	/* should never get here */
-	sof_panic(SOF_IPC_PANIC_TASK);
-	return err;
-}
-
-#else
-
 int sof_main(int argc, char *argv[])
 {
 	trace_point(TRACE_BOOT_START);
@@ -372,4 +259,3 @@ static int sof_init(void)
 }
 
 SYS_INIT(sof_init, POST_KERNEL, 99);
-#endif