// SPDX-License-Identifier: GPL-2.0-only/* * Generic show_mem() implementation * * Copyright (C) 2008 Johannes Weiner <hannes@saeurebad.de> */ #include <linux/mm.h>#include <linux/cma.h> void show_mem(unsigned int filter, nodemask_t *nodemask){	pg_data_t *pgdat;	unsigned long total = 0, reserved = 0, highmem = 0; 	printk("Mem-Info:\n");	show_free_areas(filter, nodemask); 	for_each_online_pgdat(pgdat) {		int zoneid; 		for (zoneid = 0; zoneid < MAX_NR_ZONES; zoneid++) {			struct zone *zone = &pgdat->node_zones[zoneid];			if (!populated_zone(zone))				continue; 			total += zone->present_pages;			reserved += zone->present_pages - zone_managed_pages(zone); 			if (is_highmem_idx(zoneid))				highmem += zone->present_pages;		}	} 	printk("%lu pages RAM\n", total);	printk("%lu pages HighMem/MovableOnly\n", highmem);	printk("%lu pages reserved\n", reserved);#ifdef CONFIG_CMA	printk("%lu pages cma reserved\n", totalcma_pages);#endif#ifdef CONFIG_MEMORY_FAILURE	printk("%lu pages hwpoisoned\n", atomic_long_read(&num_poisoned_pages));#endif}