/*
* Imalloc initial setting
*/
EXPORT ER init_Imalloc( void )
{
T_RSMB rsmb;
ER ercd;
InitSpinLock(&MemLockObj);
ercd = RefSysMemInfo(&rsmb);
if ( ercd < E_OK ) {
goto err_ret;
}
pagesz = (UINT)rsmb.blksz;
initIMACB(TA_RNG0);
initIMACB(TA_RNG0|TA_NORESIDENT);
initIMACB(TA_RNG3);
initIMACB(TA_RNG3|TA_NORESIDENT);
return E_OK;
err_ret:
BMS_DEBUG_PRINT(("init_Imalloc ercd = %d\n", ercd));
return ercd;
}
/*! Internal function used to initialize the vm descriptor structure*/
int VmDescriptorCacheConstructor(void * buffer)
{
VM_DESCRIPTOR_PTR vd = (VM_DESCRIPTOR_PTR)buffer;
memset(buffer, 0, sizeof(VM_DESCRIPTOR) );
InitSpinLock( &vd->lock );
return 0;
}
/*! Initializes the PID global variables and returns pid info for kernel task*/
PID_INFO_PTR InitPid()
{
InitSpinLock( &pid_info_lock );
pid_root = NULL;
PidCacheConstructor( &pid_zero );
pid_zero.free_count = MAX_PROCESS_ID-1;
return &pid_zero;
}
/*! Initializes the given VM descriptor structure and adds it to the VM map
\param descriptor - vm descriptor to be initialized
\param vmap - virtual map of this descriptor
\param start - starting va address of this descriptor range
\param end - ending va address of this descriptor range
\param vm_unit - vm unit which is backing this descriptor
\param protection - protection for this range
*/
void InitVmDescriptor(VM_DESCRIPTOR_PTR descriptor, VIRTUAL_MAP_PTR vmap, VADDR start, VADDR end, VM_UNIT_PTR vm_unit, VM_PROTECTION_PTR protection)
{
assert( descriptor != NULL );
InitSpinLock( &descriptor->lock );
descriptor->reference_count = 0;
descriptor->virtual_map = vmap;
InitAvlTreeNode( &descriptor->tree_node, 0 );
descriptor->start = start;
descriptor->end = end;
descriptor->offset_in_unit = 0;
memmove( &descriptor->protection, protection, sizeof(VM_PROTECTION) );
descriptor->unit = vm_unit;
InsertNodeIntoAvlTree(&vmap->descriptors, &descriptor->tree_node, 0, compare_vm_descriptor);
vmap->descriptor_count++;
}
