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-rw-r--r--arch/powerpc/mm/numa.c59
1 files changed, 5 insertions, 54 deletions
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 1666e7d54cca..c12adc3ddffd 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -24,8 +24,6 @@
24 24
25static int numa_enabled = 1; 25static int numa_enabled = 1;
26 26
27static char *cmdline __initdata;
28
29static int numa_debug; 27static int numa_debug;
30#define dbg(args...) if (numa_debug) { printk(KERN_INFO args); } 28#define dbg(args...) if (numa_debug) { printk(KERN_INFO args); }
31 29
@@ -41,43 +39,6 @@ static bootmem_data_t __initdata plat_node_bdata[MAX_NUMNODES];
41static int min_common_depth; 39static int min_common_depth;
42static int n_mem_addr_cells, n_mem_size_cells; 40static int n_mem_addr_cells, n_mem_size_cells;
43 41
44static int __cpuinit fake_numa_create_new_node(unsigned long end_pfn,
45 unsigned int *nid)
46{
47 unsigned long long mem;
48 char *p = cmdline;
49 static unsigned int fake_nid = 0;
50 static unsigned long long curr_boundary = 0;
51
52 *nid = fake_nid;
53 if (!p)
54 return 0;
55
56 mem = memparse(p, &p);
57 if (!mem)
58 return 0;
59
60 if (mem < curr_boundary)
61 return 0;
62
63 curr_boundary = mem;
64
65 if ((end_pfn << PAGE_SHIFT) > mem) {
66 /*
67 * Skip commas and spaces
68 */
69 while (*p == ',' || *p == ' ' || *p == '\t')
70 p++;
71
72 cmdline = p;
73 fake_nid++;
74 *nid = fake_nid;
75 dbg("created new fake_node with id %d\n", fake_nid);
76 return 1;
77 }
78 return 0;
79}
80
81static void __cpuinit map_cpu_to_node(int cpu, int node) 42static void __cpuinit map_cpu_to_node(int cpu, int node)
82{ 43{
83 numa_cpu_lookup_table[cpu] = node; 44 numa_cpu_lookup_table[cpu] = node;
@@ -383,14 +344,12 @@ static void __init parse_drconf_memory(struct device_node *memory)
383 if (nid == 0xffff || nid >= MAX_NUMNODES) 344 if (nid == 0xffff || nid >= MAX_NUMNODES)
384 nid = default_nid; 345 nid = default_nid;
385 } 346 }
347 node_set_online(nid);
386 348
387 size = numa_enforce_memory_limit(start, lmb_size); 349 size = numa_enforce_memory_limit(start, lmb_size);
388 if (!size) 350 if (!size)
389 continue; 351 continue;
390 352
391 fake_numa_create_new_node(((start + size) >> PAGE_SHIFT), &nid);
392 node_set_online(nid);
393
394 add_active_range(nid, start >> PAGE_SHIFT, 353 add_active_range(nid, start >> PAGE_SHIFT,
395 (start >> PAGE_SHIFT) + (size >> PAGE_SHIFT)); 354 (start >> PAGE_SHIFT) + (size >> PAGE_SHIFT));
396 } 355 }
@@ -470,6 +429,7 @@ new_range:
470 nid = of_node_to_nid_single(memory); 429 nid = of_node_to_nid_single(memory);
471 if (nid < 0) 430 if (nid < 0)
472 nid = default_nid; 431 nid = default_nid;
432 node_set_online(nid);
473 433
474 if (!(size = numa_enforce_memory_limit(start, size))) { 434 if (!(size = numa_enforce_memory_limit(start, size))) {
475 if (--ranges) 435 if (--ranges)
@@ -478,9 +438,6 @@ new_range:
478 continue; 438 continue;
479 } 439 }
480 440
481 fake_numa_create_new_node(((start + size) >> PAGE_SHIFT), &nid);
482 node_set_online(nid);
483
484 add_active_range(nid, start >> PAGE_SHIFT, 441 add_active_range(nid, start >> PAGE_SHIFT,
485 (start >> PAGE_SHIFT) + (size >> PAGE_SHIFT)); 442 (start >> PAGE_SHIFT) + (size >> PAGE_SHIFT));
486 443
@@ -504,7 +461,7 @@ static void __init setup_nonnuma(void)
504 unsigned long top_of_ram = lmb_end_of_DRAM(); 461 unsigned long top_of_ram = lmb_end_of_DRAM();
505 unsigned long total_ram = lmb_phys_mem_size(); 462 unsigned long total_ram = lmb_phys_mem_size();
506 unsigned long start_pfn, end_pfn; 463 unsigned long start_pfn, end_pfn;
507 unsigned int i, nid = 0; 464 unsigned int i;
508 465
509 printk(KERN_DEBUG "Top of RAM: 0x%lx, Total RAM: 0x%lx\n", 466 printk(KERN_DEBUG "Top of RAM: 0x%lx, Total RAM: 0x%lx\n",
510 top_of_ram, total_ram); 467 top_of_ram, total_ram);
@@ -514,11 +471,9 @@ static void __init setup_nonnuma(void)
514 for (i = 0; i < lmb.memory.cnt; ++i) { 471 for (i = 0; i < lmb.memory.cnt; ++i) {
515 start_pfn = lmb.memory.region[i].base >> PAGE_SHIFT; 472 start_pfn = lmb.memory.region[i].base >> PAGE_SHIFT;
516 end_pfn = start_pfn + lmb_size_pages(&lmb.memory, i); 473 end_pfn = start_pfn + lmb_size_pages(&lmb.memory, i);
517 474 add_active_range(0, start_pfn, end_pfn);
518 fake_numa_create_new_node(end_pfn, &nid);
519 add_active_range(nid, start_pfn, end_pfn);
520 node_set_online(nid);
521 } 475 }
476 node_set_online(0);
522} 477}
523 478
524void __init dump_numa_cpu_topology(void) 479void __init dump_numa_cpu_topology(void)
@@ -747,10 +702,6 @@ static int __init early_numa(char *p)
747 if (strstr(p, "debug")) 702 if (strstr(p, "debug"))
748 numa_debug = 1; 703 numa_debug = 1;
749 704
750 p = strstr(p, "fake=");
751 if (p)
752 cmdline = p + strlen("fake=");
753
754 return 0; 705 return 0;
755} 706}
756early_param("numa", early_numa); 707early_param("numa", early_numa);