18c2ecf20Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0-only 28c2ecf20Sopenharmony_ci/* 38c2ecf20Sopenharmony_ci * Generic show_mem() implementation 48c2ecf20Sopenharmony_ci * 58c2ecf20Sopenharmony_ci * Copyright (C) 2008 Johannes Weiner <hannes@saeurebad.de> 68c2ecf20Sopenharmony_ci */ 78c2ecf20Sopenharmony_ci 88c2ecf20Sopenharmony_ci#include <linux/mm.h> 98c2ecf20Sopenharmony_ci#include <linux/cma.h> 108c2ecf20Sopenharmony_ci 118c2ecf20Sopenharmony_civoid show_mem(unsigned int filter, nodemask_t *nodemask) 128c2ecf20Sopenharmony_ci{ 138c2ecf20Sopenharmony_ci pg_data_t *pgdat; 148c2ecf20Sopenharmony_ci unsigned long total = 0, reserved = 0, highmem = 0; 158c2ecf20Sopenharmony_ci 168c2ecf20Sopenharmony_ci printk("Mem-Info:\n"); 178c2ecf20Sopenharmony_ci show_free_areas(filter, nodemask); 188c2ecf20Sopenharmony_ci 198c2ecf20Sopenharmony_ci for_each_online_pgdat(pgdat) { 208c2ecf20Sopenharmony_ci int zoneid; 218c2ecf20Sopenharmony_ci 228c2ecf20Sopenharmony_ci for (zoneid = 0; zoneid < MAX_NR_ZONES; zoneid++) { 238c2ecf20Sopenharmony_ci struct zone *zone = &pgdat->node_zones[zoneid]; 248c2ecf20Sopenharmony_ci if (!populated_zone(zone)) 258c2ecf20Sopenharmony_ci continue; 268c2ecf20Sopenharmony_ci 278c2ecf20Sopenharmony_ci total += zone->present_pages; 288c2ecf20Sopenharmony_ci reserved += zone->present_pages - zone_managed_pages(zone); 298c2ecf20Sopenharmony_ci 308c2ecf20Sopenharmony_ci if (is_highmem_idx(zoneid)) 318c2ecf20Sopenharmony_ci highmem += zone->present_pages; 328c2ecf20Sopenharmony_ci } 338c2ecf20Sopenharmony_ci } 348c2ecf20Sopenharmony_ci 358c2ecf20Sopenharmony_ci printk("%lu pages RAM\n", total); 368c2ecf20Sopenharmony_ci printk("%lu pages HighMem/MovableOnly\n", highmem); 378c2ecf20Sopenharmony_ci printk("%lu pages reserved\n", reserved); 388c2ecf20Sopenharmony_ci#ifdef CONFIG_CMA 398c2ecf20Sopenharmony_ci printk("%lu pages cma reserved\n", totalcma_pages); 408c2ecf20Sopenharmony_ci#endif 418c2ecf20Sopenharmony_ci#ifdef CONFIG_MEMORY_FAILURE 428c2ecf20Sopenharmony_ci printk("%lu pages hwpoisoned\n", atomic_long_read(&num_poisoned_pages)); 438c2ecf20Sopenharmony_ci#endif 448c2ecf20Sopenharmony_ci} 45