diff options
Diffstat (limited to 'arch/i386/mm/discontig.c')
| -rw-r--r-- | arch/i386/mm/discontig.c | 105 |
1 files changed, 44 insertions, 61 deletions
diff --git a/arch/i386/mm/discontig.c b/arch/i386/mm/discontig.c index 7c392dc553b..51e3739dd22 100644 --- a/arch/i386/mm/discontig.c +++ b/arch/i386/mm/discontig.c @@ -117,7 +117,8 @@ void set_pmd_pfn(unsigned long vaddr, unsigned long pfn, pgprot_t flags); void *node_remap_end_vaddr[MAX_NUMNODES]; void *node_remap_alloc_vaddr[MAX_NUMNODES]; - +static unsigned long kva_start_pfn; +static unsigned long kva_pages; /* * FLAT - support for basic PC memory model with discontig enabled, essentially * a single node with all available processors in it with a flat @@ -156,21 +157,6 @@ static void __init find_max_pfn_node(int nid) BUG(); } -/* Find the owning node for a pfn. */ -int early_pfn_to_nid(unsigned long pfn) -{ - int nid; - - for_each_node(nid) { - if (node_end_pfn[nid] == 0) - break; - if (node_start_pfn[nid] <= pfn && node_end_pfn[nid] >= pfn) - return nid; - } - - return 0; -} - /* * Allocate memory for the pg_data_t for this node via a crude pre-bootmem * method. For node zero take this from the bottom of memory, for @@ -226,6 +212,8 @@ static unsigned long calculate_numa_remap_pages(void) unsigned long pfn; for_each_online_node(nid) { + unsigned old_end_pfn = node_end_pfn[nid]; + /* * The acpi/srat node info can show hot-add memroy zones * where memory could be added but not currently present. @@ -275,6 +263,7 @@ static unsigned long calculate_numa_remap_pages(void) node_end_pfn[nid] -= size; node_remap_start_pfn[nid] = node_end_pfn[nid]; + shrink_active_range(nid, old_end_pfn, node_end_pfn[nid]); } printk("Reserving total of %ld pages for numa KVA remap\n", reserve_pages); @@ -286,7 +275,6 @@ unsigned long __init setup_memory(void) { int nid; unsigned long system_start_pfn, system_max_low_pfn; - unsigned long reserve_pages; /* * When mapping a NUMA machine we allocate the node_mem_map arrays @@ -298,14 +286,23 @@ unsigned long __init setup_memory(void) find_max_pfn(); get_memcfg_numa(); - reserve_pages = calculate_numa_remap_pages(); + kva_pages = calculate_numa_remap_pages(); /* partially used pages are not usable - thus round upwards */ system_start_pfn = min_low_pfn = PFN_UP(init_pg_tables_end); - system_max_low_pfn = max_low_pfn = find_max_low_pfn() - reserve_pages; - printk("reserve_pages = %ld find_max_low_pfn() ~ %ld\n", - reserve_pages, max_low_pfn + reserve_pages); + kva_start_pfn = find_max_low_pfn() - kva_pages; + +#ifdef CONFIG_BLK_DEV_INITRD + /* Numa kva area is below the initrd */ + if (LOADER_TYPE && INITRD_START) + kva_start_pfn = PFN_DOWN(INITRD_START) - kva_pages; +#endif + kva_start_pfn -= kva_start_pfn & (PTRS_PER_PTE-1); + + system_max_low_pfn = max_low_pfn = find_max_low_pfn(); + printk("kva_start_pfn ~ %ld find_max_low_pfn() ~ %ld\n", + kva_start_pfn, max_low_pfn); printk("max_pfn = %ld\n", max_pfn); #ifdef CONFIG_HIGHMEM highstart_pfn = highend_pfn = max_pfn; @@ -313,6 +310,11 @@ unsigned long __init setup_memory(void) highstart_pfn = system_max_low_pfn; printk(KERN_NOTICE "%ldMB HIGHMEM available.\n", pages_to_mb(highend_pfn - highstart_pfn)); + num_physpages = highend_pfn; + high_memory = (void *) __va(highstart_pfn * PAGE_SIZE - 1) + 1; +#else + num_physpages = system_max_low_pfn; + high_memory = (void *) __va(system_max_low_pfn * PAGE_SIZE - 1) + 1; #endif printk(KERN_NOTICE "%ldMB LOWMEM available.\n", pages_to_mb(system_max_low_pfn)); @@ -323,7 +325,7 @@ unsigned long __init setup_memory(void) (ulong) pfn_to_kaddr(max_low_pfn)); for_each_online_node(nid) { node_remap_start_vaddr[nid] = pfn_to_kaddr( - highstart_pfn + node_remap_offset[nid]); + kva_start_pfn + node_remap_offset[nid]); /* Init the node remap allocator */ node_remap_end_vaddr[nid] = node_remap_start_vaddr[nid] + (node_remap_size[nid] * PAGE_SIZE); @@ -338,7 +340,6 @@ unsigned long __init setup_memory(void) } printk("High memory starts at vaddr %08lx\n", (ulong) pfn_to_kaddr(highstart_pfn)); - vmalloc_earlyreserve = reserve_pages * PAGE_SIZE; for_each_online_node(nid) find_max_pfn_node(nid); @@ -348,48 +349,30 @@ unsigned long __init setup_memory(void) return max_low_pfn; } +void __init numa_kva_reserve(void) +{ + reserve_bootmem(PFN_PHYS(kva_start_pfn),PFN_PHYS(kva_pages)); +} + void __init zone_sizes_init(void) { int nid; - - - for_each_online_node(nid) { - unsigned long zones_size[MAX_NR_ZONES] = {0, 0, 0}; - unsigned long *zholes_size; - unsigned int max_dma; - - unsigned long low = max_low_pfn; - unsigned long start = node_start_pfn[nid]; - unsigned long high = node_end_pfn[nid]; - - max_dma = virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT; - - if (node_has_online_mem(nid)){ - if (start > low) { -#ifdef CONFIG_HIGHMEM - BUG_ON(start > high); - zones_size[ZONE_HIGHMEM] = high - start; -#endif - } else { - if (low < max_dma) - zones_size[ZONE_DMA] = low; - else { - BUG_ON(max_dma > low); - BUG_ON(low > high); - zones_size[ZONE_DMA] = max_dma; - zones_size[ZONE_NORMAL] = low - max_dma; -#ifdef CONFIG_HIGHMEM - zones_size[ZONE_HIGHMEM] = high - low; -#endif - } - } + unsigned long max_zone_pfns[MAX_NR_ZONES] = { + virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT, + max_low_pfn, + highend_pfn + }; + + /* If SRAT has not registered memory, register it now */ + if (find_max_pfn_with_active_regions() == 0) { + for_each_online_node(nid) { + if (node_has_online_mem(nid)) + add_active_range(nid, node_start_pfn[nid], + node_end_pfn[nid]); } - - zholes_size = get_zholes_size(nid); - - free_area_init_node(nid, NODE_DATA(nid), zones_size, start, - zholes_size); } + + free_area_init_nodes(max_zone_pfns); return; } @@ -409,7 +392,7 @@ void __init set_highmem_pages_init(int bad_ppro) zone_end_pfn = zone_start_pfn + zone->spanned_pages; printk("Initializing %s for node %d (%08lx:%08lx)\n", - zone->name, zone->zone_pgdat->node_id, + zone->name, zone_to_nid(zone), zone_start_pfn, zone_end_pfn); for (node_pfn = zone_start_pfn; node_pfn < zone_end_pfn; node_pfn++) { |