1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-only
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Generic show_mem() implementation
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Copyright (C) 2008 Johannes Weiner <hannes@saeurebad.de>
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun #include <linux/mm.h>
9*4882a593Smuzhiyun #include <linux/cma.h>
10*4882a593Smuzhiyun #include <trace/hooks/mm.h>
show_mem(unsigned int filter,nodemask_t * nodemask)11*4882a593Smuzhiyun void show_mem(unsigned int filter, nodemask_t *nodemask)
12*4882a593Smuzhiyun {
13*4882a593Smuzhiyun pg_data_t *pgdat;
14*4882a593Smuzhiyun unsigned long total = 0, reserved = 0, highmem = 0;
15*4882a593Smuzhiyun
16*4882a593Smuzhiyun printk("Mem-Info:\n");
17*4882a593Smuzhiyun show_free_areas(filter, nodemask);
18*4882a593Smuzhiyun
19*4882a593Smuzhiyun for_each_online_pgdat(pgdat) {
20*4882a593Smuzhiyun int zoneid;
21*4882a593Smuzhiyun
22*4882a593Smuzhiyun for (zoneid = 0; zoneid < MAX_NR_ZONES; zoneid++) {
23*4882a593Smuzhiyun struct zone *zone = &pgdat->node_zones[zoneid];
24*4882a593Smuzhiyun if (!populated_zone(zone))
25*4882a593Smuzhiyun continue;
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun total += zone->present_pages;
28*4882a593Smuzhiyun reserved += zone->present_pages - zone_managed_pages(zone);
29*4882a593Smuzhiyun
30*4882a593Smuzhiyun if (is_highmem_idx(zoneid))
31*4882a593Smuzhiyun highmem += zone->present_pages;
32*4882a593Smuzhiyun }
33*4882a593Smuzhiyun }
34*4882a593Smuzhiyun
35*4882a593Smuzhiyun printk("%lu pages RAM\n", total);
36*4882a593Smuzhiyun printk("%lu pages HighMem/MovableOnly\n", highmem);
37*4882a593Smuzhiyun printk("%lu pages reserved\n", reserved);
38*4882a593Smuzhiyun #ifdef CONFIG_CMA
39*4882a593Smuzhiyun printk("%lu pages cma reserved\n", totalcma_pages);
40*4882a593Smuzhiyun #endif
41*4882a593Smuzhiyun #ifdef CONFIG_MEMORY_FAILURE
42*4882a593Smuzhiyun printk("%lu pages hwpoisoned\n", atomic_long_read(&num_poisoned_pages));
43*4882a593Smuzhiyun #endif
44*4882a593Smuzhiyun trace_android_vh_show_mem(filter, nodemask);
45*4882a593Smuzhiyun }
46*4882a593Smuzhiyun EXPORT_SYMBOL_GPL(show_mem);
47