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bsp/realview-pbx-a9: Support unassigned processors

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This commit is contained in:
Sebastian Huber
2018-07-18 07:14:41 +02:00
parent da0cbef24b
commit 1b57b7527a
1 changed files with 11 additions and 3 deletions
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14
bsps/arm/realview-pbx-a9/start/bspstarthooks.c
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@@ -19,6 +19,10 @@
#include <bsp/arm-cp15-start.h>
#include <bsp/arm-a9mpcore-start.h>
#ifdef RTEMS_SMP
#include <rtems/score/smpimpl.h>
#endif
BSP_START_DATA_SECTION static const arm_cp15_start_section_config
rvpbxa9_mmu_config_table[] = {
ARMV7_CP15_START_DEFAULT_SECTIONS,
@@ -56,13 +60,17 @@ BSP_START_TEXT_SECTION static void setup_mmu_and_cache(void)
BSP_START_TEXT_SECTION void bsp_start_hook_0(void)
{
#ifdef RTEMS_SMP
uint32_t cpu_id = arm_cortex_a9_get_multiprocessor_cpu_id();
uint32_t cpu_index_self = _SMP_Get_current_processor();
/*
* QEMU jumps to the entry point of the ELF file on all processors. Prevent
* a SMP_FATAL_MULTITASKING_START_ON_INVALID_PROCESSOR this way.
* the fatal errors SMP_FATAL_MULTITASKING_START_ON_INVALID_PROCESSOR and
* SMP_FATAL_MULTITASKING_START_ON_UNASSIGNED_PROCESSOR this way.
*/
if ( cpu_id >= rtems_configuration_get_maximum_processors() ) {
if (
cpu_index_self >= rtems_configuration_get_maximum_processors()
|| !_SMP_Should_start_processor(cpu_index_self)
) {
while (true) {
_ARM_Wait_for_event();
}