diff options
Diffstat (limited to 'arch/mips/sgi-ip27')
| -rw-r--r-- | arch/mips/sgi-ip27/ip27-memory.c | 117 |
1 files changed, 22 insertions, 95 deletions
diff --git a/arch/mips/sgi-ip27/ip27-memory.c b/arch/mips/sgi-ip27/ip27-memory.c index bf438d02366e..42cd10956306 100644 --- a/arch/mips/sgi-ip27/ip27-memory.c +++ b/arch/mips/sgi-ip27/ip27-memory.c @@ -33,10 +33,6 @@ #define SLOT_PFNSHIFT (SLOT_SHIFT - PAGE_SHIFT) #define PFN_NASIDSHFT (NASID_SHFT - PAGE_SHIFT) -#define SLOT_IGNORED 0xffff - -static short __initdata slot_lastfilled_cache[MAX_COMPACT_NODES]; -static unsigned short __initdata slot_psize_cache[MAX_COMPACT_NODES][MAX_MEM_SLOTS]; static struct bootmem_data __initdata plat_node_bdata[MAX_COMPACT_NODES]; struct node_data *__node_data[MAX_COMPACT_NODES]; @@ -267,51 +263,6 @@ static pfn_t __init slot_getbasepfn(cnodeid_t cnode, int slot) return ((pfn_t)nasid << PFN_NASIDSHFT) | (slot << SLOT_PFNSHIFT); } -/* - * Return the number of pages of memory provided by the given slot - * on the specified node. - */ -static pfn_t __init slot_getsize(cnodeid_t node, int slot) -{ - return (pfn_t) slot_psize_cache[node][slot]; -} - -/* - * Return highest slot filled - */ -static int __init node_getlastslot(cnodeid_t node) -{ - return (int) slot_lastfilled_cache[node]; -} - -/* - * Return the pfn of the last free page of memory on a node. - */ -static pfn_t __init node_getmaxclick(cnodeid_t node) -{ - pfn_t slot_psize; - int slot; - - /* - * Start at the top slot. When we find a slot with memory in it, - * that's the winner. - */ - for (slot = (MAX_MEM_SLOTS - 1); slot >= 0; slot--) { - if ((slot_psize = slot_getsize(node, slot))) { - if (slot_psize == SLOT_IGNORED) - continue; - /* Return the basepfn + the slot size, minus 1. */ - return slot_getbasepfn(node, slot) + slot_psize - 1; - } - } - - /* - * If there's no memory on the node, return 0. This is likely - * to cause problems. - */ - return 0; -} - static pfn_t __init slot_psize_compute(cnodeid_t node, int slot) { nasid_t nasid; @@ -404,13 +355,13 @@ static void __init mlreset(void) static void __init szmem(void) { pfn_t slot_psize, slot0sz = 0, nodebytes; /* Hack to detect problem configs */ - int slot, ignore; + int slot; cnodeid_t node; num_physpages = 0; for_each_online_node(node) { - ignore = nodebytes = 0; + nodebytes = 0; for (slot = 0; slot < MAX_MEM_SLOTS; slot++) { slot_psize = slot_psize_compute(node, slot); if (slot == 0) @@ -420,21 +371,20 @@ static void __init szmem(void) * kernel text. */ nodebytes += (1LL << SLOT_SHIFT); + + if (!slot_psize) + continue; + if ((nodebytes >> PAGE_SHIFT) * (sizeof(struct page)) > - (slot0sz << PAGE_SHIFT)) - ignore = 1; - if (ignore && slot_psize) { + (slot0sz << PAGE_SHIFT)) { printk("Ignoring slot %d onwards on node %d\n", slot, node); - slot_psize_cache[node][slot] = SLOT_IGNORED; slot = MAX_MEM_SLOTS; continue; } num_physpages += slot_psize; - slot_psize_cache[node][slot] = - (unsigned short) slot_psize; - if (slot_psize) - slot_lastfilled_cache[node] = slot; + add_active_range(node, slot_getbasepfn(node, slot), + slot_getbasepfn(node, slot) + slot_psize); } } } @@ -442,18 +392,20 @@ static void __init szmem(void) static void __init node_mem_init(cnodeid_t node) { pfn_t slot_firstpfn = slot_getbasepfn(node, 0); - pfn_t slot_lastpfn = slot_firstpfn + slot_getsize(node, 0); pfn_t slot_freepfn = node_getfirstfree(node); - struct pglist_data *pd; unsigned long bootmap_size; + pfn_t start_pfn, end_pfn; + + get_pfn_range_for_nid(node, &start_pfn, &end_pfn); /* * Allocate the node data structures on the node first. */ __node_data[node] = __va(slot_freepfn << PAGE_SHIFT); - pd = NODE_DATA(node); - pd->bdata = &plat_node_bdata[node]; + NODE_DATA(node)->bdata = &plat_node_bdata[node]; + NODE_DATA(node)->node_start_pfn = start_pfn; + NODE_DATA(node)->node_spanned_pages = end_pfn - start_pfn; cpus_clear(hub_data(node)->h_cpus); @@ -461,12 +413,12 @@ static void __init node_mem_init(cnodeid_t node) sizeof(struct hub_data)); bootmap_size = init_bootmem_node(NODE_DATA(node), slot_freepfn, - slot_firstpfn, slot_lastpfn); - free_bootmem_node(NODE_DATA(node), slot_firstpfn << PAGE_SHIFT, - (slot_lastpfn - slot_firstpfn) << PAGE_SHIFT); + start_pfn, end_pfn); + free_bootmem_with_active_regions(node, end_pfn); reserve_bootmem_node(NODE_DATA(node), slot_firstpfn << PAGE_SHIFT, ((slot_freepfn - slot_firstpfn) << PAGE_SHIFT) + bootmap_size, BOOTMEM_DEFAULT); + sparse_memory_present_with_active_regions(node); } /* @@ -515,16 +467,15 @@ void __init paging_init(void) pagetable_init(); for_each_online_node(node) { - pfn_t start_pfn = slot_getbasepfn(node, 0); - pfn_t end_pfn = node_getmaxclick(node) + 1; + pfn_t start_pfn, end_pfn; - zones_size[ZONE_NORMAL] = end_pfn - start_pfn; - free_area_init_node(node, NODE_DATA(node), - zones_size, start_pfn, NULL); + get_pfn_range_for_nid(node, &start_pfn, &end_pfn); if (end_pfn > max_low_pfn) max_low_pfn = end_pfn; } + zones_size[ZONE_NORMAL] = max_low_pfn; + free_area_init_nodes(zones_size); } void __init mem_init(void) @@ -535,34 +486,10 @@ void __init mem_init(void) high_memory = (void *) __va(num_physpages << PAGE_SHIFT); for_each_online_node(node) { - unsigned slot, numslots; - struct page *end, *p; - /* * This will free up the bootmem, ie, slot 0 memory. */ totalram_pages += free_all_bootmem_node(NODE_DATA(node)); - - /* - * We need to manually do the other slots. - */ - numslots = node_getlastslot(node); - for (slot = 1; slot <= numslots; slot++) { - p = nid_page_nr(node, slot_getbasepfn(node, slot) - - slot_getbasepfn(node, 0)); - - /* - * Free valid memory in current slot. - */ - for (end = p + slot_getsize(node, slot); p < end; p++) { - /* if (!page_is_ram(pgnr)) continue; */ - /* commented out until page_is_ram works */ - ClearPageReserved(p); - init_page_count(p); - __free_page(p); - totalram_pages++; - } - } } totalram_pages -= setup_zero_pages(); /* This comes from node 0 */ |