diff options
Diffstat (limited to 'arch/x86/mm/discontig_32.c')
| -rw-r--r-- | arch/x86/mm/discontig_32.c | 54 |
1 files changed, 25 insertions, 29 deletions
diff --git a/arch/x86/mm/discontig_32.c b/arch/x86/mm/discontig_32.c index 914ccf98368..8b4eac0ca07 100644 --- a/arch/x86/mm/discontig_32.c +++ b/arch/x86/mm/discontig_32.c @@ -156,7 +156,7 @@ static void __init propagate_e820_map_node(int nid) */ static void __init allocate_pgdat(int nid) { - if (nid && node_has_online_mem(nid)) + if (nid && node_has_online_mem(nid) && node_remap_start_vaddr[nid]) NODE_DATA(nid) = (pg_data_t *)node_remap_start_vaddr[nid]; else { NODE_DATA(nid) = (pg_data_t *)(pfn_to_kaddr(min_low_pfn)); @@ -164,16 +164,13 @@ static void __init allocate_pgdat(int nid) } } -#ifdef CONFIG_DISCONTIGMEM /* - * In the discontig memory model, a portion of the kernel virtual area (KVA) - * is reserved and portions of nodes are mapped using it. This is to allow - * node-local memory to be allocated for structures that would normally require - * ZONE_NORMAL. The memory is allocated with alloc_remap() and callers - * should be prepared to allocate from the bootmem allocator instead. This KVA - * mechanism is incompatible with SPARSEMEM as it makes assumptions about the - * layout of memory that are broken if alloc_remap() succeeds for some of the - * map and fails for others + * In the DISCONTIGMEM and SPARSEMEM memory model, a portion of the kernel + * virtual address space (KVA) is reserved and portions of nodes are mapped + * using it. This is to allow node-local memory to be allocated for + * structures that would normally require ZONE_NORMAL. The memory is + * allocated with alloc_remap() and callers should be prepared to allocate + * from the bootmem allocator instead. */ static unsigned long node_remap_start_pfn[MAX_NUMNODES]; static void *node_remap_end_vaddr[MAX_NUMNODES]; @@ -290,25 +287,6 @@ static void init_remap_allocator(int nid) (ulong) pfn_to_kaddr(highstart_pfn + node_remap_offset[nid] + node_remap_size[nid])); } -#else -void *alloc_remap(int nid, unsigned long size) -{ - return NULL; -} - -static unsigned long calculate_numa_remap_pages(void) -{ - return 0; -} - -static void init_remap_allocator(int nid) -{ -} - -void __init remap_numa_kva(void) -{ -} -#endif /* CONFIG_DISCONTIGMEM */ extern void setup_bootmem_allocator(void); unsigned long __init setup_memory(void) @@ -476,3 +454,21 @@ int memory_add_physaddr_to_nid(u64 addr) EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid); #endif + +#if defined(CONFIG_ACPI_NUMA) && !defined(CONFIG_HAVE_ARCH_PARSE_SRAT) +/* + * Dummy on 32-bit, for now: + */ +void __init acpi_numa_slit_init(struct acpi_table_slit *slit) +{ +} + +void __init +acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) +{ +} + +void __init acpi_numa_arch_fixup(void) +{ +} +#endif |