blob: 9450250236f5b8d78319881734cb7b1f353ada21
| 1 | /* |
| 2 | * Generic show_mem() implementation |
| 3 | * |
| 4 | * Copyright (C) 2008 Johannes Weiner <hannes@saeurebad.de> |
| 5 | * All code subject to the GPL version 2. |
| 6 | */ |
| 7 | |
| 8 | #include <linux/mm.h> |
| 9 | #include <linux/quicklist.h> |
| 10 | #include <linux/cma.h> |
| 11 | |
| 12 | void show_mem(unsigned int filter) |
| 13 | { |
| 14 | pg_data_t *pgdat; |
| 15 | unsigned long total = 0, reserved = 0, highmem = 0; |
| 16 | |
| 17 | printk("Mem-Info:\n"); |
| 18 | show_free_areas(filter); |
| 19 | |
| 20 | for_each_online_pgdat(pgdat) { |
| 21 | unsigned long flags; |
| 22 | int zoneid; |
| 23 | |
| 24 | pgdat_resize_lock(pgdat, &flags); |
| 25 | for (zoneid = 0; zoneid < MAX_NR_ZONES; zoneid++) { |
| 26 | struct zone *zone = &pgdat->node_zones[zoneid]; |
| 27 | if (!populated_zone(zone)) |
| 28 | continue; |
| 29 | |
| 30 | total += zone->present_pages; |
| 31 | reserved += zone->present_pages - zone->managed_pages; |
| 32 | |
| 33 | if (is_highmem_idx(zoneid)) |
| 34 | highmem += zone->present_pages; |
| 35 | } |
| 36 | pgdat_resize_unlock(pgdat, &flags); |
| 37 | } |
| 38 | |
| 39 | printk("%lu pages RAM\n", total); |
| 40 | printk("%lu pages HighMem/MovableOnly\n", highmem); |
| 41 | printk("%lu pages reserved\n", reserved); |
| 42 | #ifdef CONFIG_CMA |
| 43 | printk("%lu pages cma reserved\n", totalcma_pages); |
| 44 | #endif |
| 45 | #ifdef CONFIG_QUICKLIST |
| 46 | printk("%lu pages in pagetable cache\n", |
| 47 | quicklist_total_size()); |
| 48 | #endif |
| 49 | #ifdef CONFIG_MEMORY_FAILURE |
| 50 | printk("%lu pages hwpoisoned\n", atomic_long_read(&num_poisoned_pages)); |
| 51 | #endif |
| 52 | } |
| 53 | EXPORT_SYMBOL(show_mem); |
| 54 |