U0 BlkPoolAdd(CBlkPool *bp,CMemBlk *m,I64 pags)
{//Add mem to BlkPool.
if (sys_mem_init_flag)
MemSet(m,sys_mem_init_val,pags*MEM_PAG_SIZE);
PUSHFD
CLI
while (LBts(&bp->locked_flags,BPlf_LOCKED))
PAUSE
m->next=bp->mem_free_lst;
m->pags=pags;
m->mb_signature=MBS_UNUSED_SIGNATURE_VAL;
bp->alloced_u8s+=pags<<MEM_PAG_BITS;
bp->mem_free_lst=m;
LBtr(&bp->locked_flags,BPlf_LOCKED);
POPFD
}
U0 BlkPoolInit(CBlkPool *bp,I64 pags)
{//Make mem chunk into a BlkPool.
I64 num;
CMemBlk *m;
MemSet(bp,0,sizeof(CBlkPool));
m=(bp(U8 *)+sizeof(CBlkPool)+MEM_PAG_SIZE-1)&~(MEM_PAG_SIZE-1);
num=(bp(U8 *)+pags<<MEM_PAG_BITS-m(U8 *))>>MEM_PAG_BITS;
bp->alloced_u8s=(pags-num)<<MEM_PAG_BITS; //Compensate before num added.
BlkPoolAdd(bp,m,num);
}
U0 BlkPoolsInit()
{
I64 i,total,lo,hi,code_heap_limit;
CMemE820 *m20=MEM_E820;
Bool first=TRUE;
total=BIOSTotalMem;
if (total<=0x80000000)
code_heap_limit=total;
else if (total<=0x100000000)
code_heap_limit=total/4;
else
code_heap_limit=0x80000000;
i=code_heap_limit-SYS_16MEG_AREA_LIMIT; //See RLf_16MEG_SYS_CODE_BP
BlkPoolAdd(sys_code_bp,SYS_16MEG_AREA_LIMIT,i>>MEM_PAG_BITS);
mem_heap_limit=i+SYS_16MEG_AREA_LIMIT-1;
if (code_heap_limit<total) {
while (m20->type) {
if (m20->type==1) {
lo=m20->base;
hi=m20->base+m20->len;
if (lo<code_heap_limit) {
if (hi>code_heap_limit)
lo=code_heap_limit;
else
hi=lo; //cancel
}
if (code_heap_limit<=lo<hi) {
if (first) {
BlkPoolInit(lo,(hi-lo)>>MEM_PAG_BITS);
sys_data_bp=lo;
Fs->data_heap=HeapCtrlInit(,Fs,sys_data_bp);
first=FALSE;
} else
BlkPoolAdd(sys_data_bp,lo,(hi-lo)>>MEM_PAG_BITS);
}
}
m20++;
}
}
LBts(&sys_run_level,RLf_FULL_HEAPS);
}