diff options
Diffstat (limited to 'lib/e_show_mem.c')
| -rw-r--r-- | lib/e_show_mem.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/lib/e_show_mem.c b/lib/e_show_mem.c new file mode 100644 index 00000000..863a8689 --- /dev/null +++ b/lib/e_show_mem.c @@ -0,0 +1,66 @@ +/* + * Copyright (C) 2015 Spreadtrum Communications Inc. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/mm.h> +#include <linux/notifier.h> +#include <linux/swap.h> + +#ifdef CONFIG_E_SHOW_MEM + +static BLOCKING_NOTIFIER_HEAD(e_show_mem_notify_list); + +int register_e_show_mem_notifier(struct notifier_block *nb) +{ + return blocking_notifier_chain_register(&e_show_mem_notify_list, nb); +} +EXPORT_SYMBOL_GPL(register_e_show_mem_notifier); + +int unregister_e_show_mem_notifier(struct notifier_block *nb) +{ + return blocking_notifier_chain_unregister(&e_show_mem_notify_list, nb); +} +EXPORT_SYMBOL_GPL(unregister_e_show_mem_notifier); + + +void enhanced_show_mem(enum e_show_mem_type type) +{ + /* Module used pages */ + unsigned long used = 0; + struct sysinfo i; + + printk("++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\n"); + printk("++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\n"); + printk("Enhanced Mem-Info:"); + if (E_SHOW_MEM_BASIC == type) + printk("E_SHOW_MEM_BASIC\n"); + else if (E_SHOW_MEM_CLASSIC == type) + printk("E_SHOW_MEM_CLASSIC\n"); + else + printk("E_SHOW_MEM_ALL\n"); + printk("++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\n"); + printk("Enhanced Mem-info :SHOW MEM\n"); + show_mem(SHOW_MEM_FILTER_NODES | SHOW_MEM_FILTER_PAGE_COUNT); + si_meminfo(&i); + printk("MemTotal: %8lu kB\n" + "Buffers: %8lu kB\n" + "SwapCached: %8lu kB\n", + (i.totalram) << (PAGE_SHIFT - 10), + (i.bufferram) << (PAGE_SHIFT - 10), + total_swapcache_pages() << (PAGE_SHIFT - 10)); + + blocking_notifier_call_chain(&e_show_mem_notify_list, + (unsigned long)type, &used); + printk("++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\n"); + printk("++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\n"); +} +#endif |