/* * Copyright 2000, Silicon Graphics, sprasad@engr.sgi.com * Copyright 2000, Kanoj Sarcar, kanoj@sgi.com *//* * Contains common definitions and globals for NUMA platform * support. For now, SN-IA64 and SN-MIPS are the NUMA platforms. */#include <linux/config.h>#include <linux/kernel.h>#include <linux/mm.h>#include <linux/bootmem.h>#include <asm/sn/mmzone.h>#include <asm/efi.h>extern int numnodes ;plat_pg_data_t plat_node_data[MAXNODES];bootmem_data_t bdata[MAXNODES];int chunktonid[MAXCHUNKS];int nasid_map[MAXNASIDS];void __initinit_chunktonid(void){	memset(chunktonid, -1, sizeof(chunktonid)) ;}void __initinit_nodeidmap(void){	memset(nasid_map, -1, sizeof(nasid_map)) ;}int		cnodeid_map[MAXNODES] ;void __initinit_cnodeidmap(void){	memset(cnodeid_map, -1, sizeof(cnodeid_map)) ;}intnuma_debug(void){       panic("NUMA debug\n");       return(0);}int __initbuild_cnodeid_map(void){	int	i,j ;	for (i=0,j=0;i<MAXNASIDS;i++) {		if (nasid_map[i] >= 0)			cnodeid_map[j++] = i ;	}	return j ;}/* * Since efi_memmap_walk merges contiguous banks, this code will need * to find all the nasids covered by the input memory descriptor. */static int __initbuild_nasid_map(unsigned long start, unsigned long end, void *arg){	unsigned long vaddr = start;	int nasid = GetNasId(__pa(vaddr));	while (vaddr < end) {		if (nasid < MAXNASIDS)			nasid_map[nasid] = 0;		else			panic("build_nasid_map");		vaddr = (unsigned long)__va((unsigned long)(++nasid) << 							SN1_NODE_ADDR_SHIFT);	}	return 0;}void __initfix_nasid_map(void){	int	i ;	int		j ;	/* For every nasid */	for (j=0;j<MAXNASIDS;j++) {		for (i=0;i<MAXNODES;i++) {			if (CNODEID_TO_NASID(i) == j)				break ;		}		if (i<MAXNODES)			nasid_map[j] = i ;	}}static void __initdump_bootmem_info(void){        int     i;        struct bootmem_data *bdata ;	printk("CNODE INFO ....\n") ;        for (i=0;i<numnodes;i++) {		printk("%d ", CNODEID_TO_NASID(i)) ;	}	printk("\n") ;	printk("BOOT MEM INFO ....\n") ;        printk("Node   Start                LowPfn               BootmemMap\n") ;        for (i=0;i<numnodes;i++) {                bdata = NODE_DATA(i)->bdata ;                printk("%d      0x%016lx   0x%016lx   0x%016lx\n", i,                        bdata->node_boot_start, bdata->node_low_pfn,                        (unsigned long)bdata->node_bootmem_map) ;        }}void __initdiscontig_mem_init(void){	extern void setup_sn1_bootmem(int);	int		maxnodes ;        init_chunktonid() ;	init_nodeidmap() ;	init_cnodeidmap() ;	efi_memmap_walk(build_nasid_map, 0) ;	maxnodes = build_cnodeid_map() ;	fix_nasid_map() ;#ifdef CONFIG_DISCONTIGMEM	setup_sn1_bootmem(maxnodes) ;#endif	numnodes = maxnodes;	dump_bootmem_info() ;}voiddump_node_data(void){        int     i;	printk("NODE DATA ....\n") ;	printk("Node, Start, Size, MemMap, BitMap, StartP, Mapnr, Size, Id\n") ;        for (i=0;i<numnodes;i++) {		printk("%d, 0x%lx, 0x%lx, 0x%lx, 0x%lx, 0x%lx, 0x%lx, 0x%lx, %d\n", 			CNODEID_TO_NASID(i), NODE_START(i), NODE_SIZE(i), 			(long)NODE_MEM_MAP(i), (long)NODE_DATA(i)->valid_addr_bitmap, 			NODE_DATA(i)->node_start_paddr, 			NODE_DATA(i)->node_start_mapnr,			NODE_DATA(i)->node_size,			NODE_DATA(i)->node_id)  ;	}}