Line data    Source code

       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             : 
      11           0 : void __show_mem(unsigned int filter, nodemask_t *nodemask, int max_zone_idx)
      12             : {
      13           0 :         unsigned long total = 0, reserved = 0, highmem = 0;
      14             :         struct zone *zone;
      15             : 
      16           0 :         printk("Mem-Info:\n");
      17           0 :         __show_free_areas(filter, nodemask, max_zone_idx);
      18             : 
      19           0 :         for_each_populated_zone(zone) {
      20             : 
      21           0 :                 total += zone->present_pages;
      22           0 :                 reserved += zone->present_pages - zone_managed_pages(zone);
      23             : 
      24           0 :                 if (is_highmem(zone))
      25             :                         highmem += zone->present_pages;
      26             :         }
      27             : 
      28           0 :         printk("%lu pages RAM\n", total);
      29           0 :         printk("%lu pages HighMem/MovableOnly\n", highmem);
      30           0 :         printk("%lu pages reserved\n", reserved);
      31             : #ifdef CONFIG_CMA
      32             :         printk("%lu pages cma reserved\n", totalcma_pages);
      33             : #endif
      34             : #ifdef CONFIG_MEMORY_FAILURE
      35             :         printk("%lu pages hwpoisoned\n", atomic_long_read(&num_poisoned_pages));
      36             : #endif
      37           0 : }