diff options
Diffstat (limited to 'arch/x86/mm/numa_64.c')
| -rw-r--r-- | arch/x86/mm/numa_64.c | 34 |
1 files changed, 18 insertions, 16 deletions
diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c index a3621f2953d..20e2cfe5ab8 100644 --- a/arch/x86/mm/numa_64.c +++ b/arch/x86/mm/numa_64.c @@ -193,10 +193,9 @@ static void * __init early_node_mem(int nodeid, unsigned long start, return NULL; } -int __init numa_add_memblk(int nid, u64 start, u64 end) +static int __init numa_add_memblk_to(int nid, u64 start, u64 end, + struct numa_meminfo *mi) { - struct numa_meminfo *mi = &numa_meminfo; - /* ignore zero length blks */ if (start == end) return 0; @@ -227,6 +226,11 @@ static void __init numa_remove_memblk_from(int idx, struct numa_meminfo *mi) (mi->nr_blks - idx) * sizeof(mi->blk[0])); } +int __init numa_add_memblk(int nid, u64 start, u64 end) +{ + return numa_add_memblk_to(nid, start, end, &numa_meminfo); +} + /* Initialize bootmem allocator for a node */ void __init setup_node_bootmem(int nodeid, unsigned long start, unsigned long end) @@ -539,11 +543,11 @@ static int __init numa_register_memblks(struct numa_meminfo *mi) /* Numa emulation */ static struct bootnode nodes[MAX_NUMNODES] __initdata; static struct bootnode physnodes[MAX_NUMNODES] __cpuinitdata; -static char *cmdline __initdata; +static char *emu_cmdline __initdata; void __init numa_emu_cmdline(char *str) { - cmdline = str; + emu_cmdline = str; } int __init find_node_by_addr(unsigned long addr) @@ -861,12 +865,10 @@ static int __init split_nodes_size_interleave(u64 addr, u64 max_addr, u64 size) * Sets up the system RAM area from start_pfn to last_pfn according to the * numa=fake command-line option. */ -static int __init numa_emulation(unsigned long start_pfn, - unsigned long last_pfn, int acpi, int amd) +static int __init numa_emulation(int acpi, int amd) { static struct numa_meminfo ei __initdata; - u64 addr = start_pfn << PAGE_SHIFT; - u64 max_addr = last_pfn << PAGE_SHIFT; + const u64 max_addr = max_pfn << PAGE_SHIFT; int num_nodes; int i; @@ -875,16 +877,16 @@ static int __init numa_emulation(unsigned long start_pfn, * the fixed node size. Otherwise, if it is just a single number N, * split the system RAM into N fake nodes. */ - if (strchr(cmdline, 'M') || strchr(cmdline, 'G')) { + if (strchr(emu_cmdline, 'M') || strchr(emu_cmdline, 'G')) { u64 size; - size = memparse(cmdline, &cmdline); - num_nodes = split_nodes_size_interleave(addr, max_addr, size); + size = memparse(emu_cmdline, &emu_cmdline); + num_nodes = split_nodes_size_interleave(0, max_addr, size); } else { unsigned long n; - n = simple_strtoul(cmdline, NULL, 0); - num_nodes = split_nodes_interleave(addr, max_addr, n); + n = simple_strtoul(emu_cmdline, NULL, 0); + num_nodes = split_nodes_interleave(0, max_addr, n); } if (num_nodes < 0) @@ -916,7 +918,7 @@ static int __init numa_emulation(unsigned long start_pfn, init_memory_mapping_high(); for_each_node_mask(i, node_possible_map) setup_node_bootmem(i, nodes[i].start, nodes[i].end); - setup_physnodes(addr, max_addr); + setup_physnodes(0, max_addr); fake_physnodes(acpi, amd, num_nodes); numa_init_array(); numa_emu_dist = true; @@ -972,7 +974,7 @@ void __init initmem_init(void) continue; #ifdef CONFIG_NUMA_EMU setup_physnodes(0, max_pfn << PAGE_SHIFT); - if (cmdline && !numa_emulation(0, max_pfn, i == 0, i == 1)) + if (emu_cmdline && !numa_emulation(i == 0, i == 1)) return; setup_physnodes(0, max_pfn << PAGE_SHIFT); nodes_clear(node_possible_map); |