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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/nmi.h>
10#include <linux/quicklist.h>
11
12void 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_QUICKLIST
43 printk("%lu pages in pagetable cache\n",
44 quicklist_total_size());
45#endif
46#ifdef CONFIG_MEMORY_FAILURE
47 printk("%lu pages hwpoisoned\n", atomic_long_read(&num_poisoned_pages));
48#endif
49}
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Generic show_mem() implementation
4 *
5 * Copyright (C) 2008 Johannes Weiner <hannes@saeurebad.de>
6 */
7
8#include <linux/mm.h>
9#include <linux/cma.h>
10
11void show_mem(unsigned int filter, nodemask_t *nodemask)
12{
13 pg_data_t *pgdat;
14 unsigned long total = 0, reserved = 0, highmem = 0;
15
16 printk("Mem-Info:\n");
17 show_free_areas(filter, nodemask);
18
19 for_each_online_pgdat(pgdat) {
20 int zoneid;
21
22 for (zoneid = 0; zoneid < MAX_NR_ZONES; zoneid++) {
23 struct zone *zone = &pgdat->node_zones[zoneid];
24 if (!populated_zone(zone))
25 continue;
26
27 total += zone->present_pages;
28 reserved += zone->present_pages - zone_managed_pages(zone);
29
30 if (is_highmem_idx(zoneid))
31 highmem += zone->present_pages;
32 }
33 }
34
35 printk("%lu pages RAM\n", total);
36 printk("%lu pages HighMem/MovableOnly\n", highmem);
37 printk("%lu pages reserved\n", reserved);
38#ifdef CONFIG_CMA
39 printk("%lu pages cma reserved\n", totalcma_pages);
40#endif
41#ifdef CONFIG_MEMORY_FAILURE
42 printk("%lu pages hwpoisoned\n", atomic_long_read(&num_poisoned_pages));
43#endif
44}