void bsp_pretasking_hook(void)
{
#if MPC55XX_CHIP_TYPE / 10 == 564
_Heap_Extend(
RTEMS_Malloc_Heap,
bsp_section_rwextra_end,
(uintptr_t) bsp_ram_end
- (uintptr_t) bsp_section_rwextra_end,
NULL
);
#endif
}
rtems_status_code rtems_region_extend(
rtems_id id,
void *starting_address,
uintptr_t length
)
{
uintptr_t amount_extended;
Objects_Locations location;
rtems_status_code return_status;
Region_Control *the_region;
if ( !starting_address )
return RTEMS_INVALID_ADDRESS;
_RTEMS_Lock_allocator(); /* to prevent deletion */
the_region = _Region_Get( id, &location );
switch ( location ) {
case OBJECTS_LOCAL:
amount_extended = _Heap_Extend(
&the_region->Memory,
starting_address,
length,
0
);
if ( amount_extended > 0 ) {
the_region->length += amount_extended;
the_region->maximum_segment_size += amount_extended;
return_status = RTEMS_SUCCESSFUL;
} else {
return_status = RTEMS_INVALID_ADDRESS;
}
break;
#if defined(RTEMS_MULTIPROCESSING)
case OBJECTS_REMOTE: /* this error cannot be returned */
break;
#endif
case OBJECTS_ERROR:
default:
return_status = RTEMS_INVALID_ID;
break;
}
_RTEMS_Unlock_allocator();
return return_status;
}
bool _Protected_heap_Extend(
Heap_Control *the_heap,
void *starting_address,
uintptr_t size
)
{
bool extend_ok;
uintptr_t amount_extended;
_RTEMS_Lock_allocator();
extend_ok = _Heap_Extend(the_heap, starting_address, size, &amount_extended);
_RTEMS_Unlock_allocator();
return extend_ok;
}
boolean _Protected_heap_Extend(
Heap_Control *the_heap,
void *starting_address,
size_t size
)
{
Heap_Extend_status status;
uint32_t amount_extended;
_RTEMS_Lock_allocator();
status = _Heap_Extend(the_heap, starting_address, size, &amount_extended);
_RTEMS_Unlock_allocator();
return (status == HEAP_EXTEND_SUCCESSFUL);
}
static void add_area(
void *area_begin,
uintptr_t area_size
)
{
Heap_Control *heap = cache_coherent_heap;
if ( heap == NULL ) {
bool ok;
heap = &cache_coherent_heap_instance;
ok = _Heap_Initialize( heap, area_begin, area_size, 0 );
if ( ok ) {
cache_coherent_heap = heap;
}
} else {
_Heap_Extend( heap, area_begin, area_size, 0 );
}
}
rtems_status_code rtems_region_extend(
rtems_id id,
void *starting_address,
uintptr_t length
)
{
rtems_status_code status;
Region_Control *the_region;
uintptr_t amount_extended;
if ( starting_address == NULL ) {
return RTEMS_INVALID_ADDRESS;
}
the_region = _Region_Get_and_lock( id );
if ( the_region == NULL ) {
return RTEMS_INVALID_ID;
}
amount_extended = _Heap_Extend(
&the_region->Memory,
starting_address,
length,
0
);
if ( amount_extended > 0 ) {
the_region->maximum_segment_size += amount_extended;
status = RTEMS_SUCCESSFUL;
} else {
status = RTEMS_INVALID_ADDRESS;
}
_Region_Unlock( the_region );
return status;
}
