[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/os/linux/linux-3.4.x/lib/show_mem.c b/ap/os/linux/linux-3.4.x/lib/show_mem.c
new file mode 100644
index 0000000..b7c7231
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/lib/show_mem.c
@@ -0,0 +1,66 @@
+/*
+ * Generic show_mem() implementation
+ *
+ * Copyright (C) 2008 Johannes Weiner <hannes@saeurebad.de>
+ * All code subject to the GPL version 2.
+ */
+
+#include <linux/mm.h>
+#include <linux/nmi.h>
+#include <linux/quicklist.h>
+
+void show_mem(unsigned int filter)
+{
+ pg_data_t *pgdat;
+ unsigned long total = 0, reserved = 0, shared = 0,
+ nonshared = 0, highmem = 0;
+
+ printk("Mem-Info:\n");
+ show_free_areas(filter);
+
+ if (filter & SHOW_MEM_FILTER_PAGE_COUNT)
+ return;
+
+ for_each_online_pgdat(pgdat) {
+ unsigned long i, flags;
+
+ pgdat_resize_lock(pgdat, &flags);
+ for (i = 0; i < pgdat->node_spanned_pages; i++) {
+ struct page *page;
+ unsigned long pfn = pgdat->node_start_pfn + i;
+
+ if (unlikely(!(i % MAX_ORDER_NR_PAGES)))
+ touch_nmi_watchdog();
+
+ if (!pfn_valid(pfn))
+ continue;
+
+ page = pfn_to_page(pfn);
+
+ if (PageHighMem(page))
+ highmem++;
+
+ if (PageReserved(page))
+ reserved++;
+ else if (page_count(page) == 1)
+ nonshared++;
+ else if (page_count(page) > 1)
+ shared += page_count(page) - 1;
+
+ total++;
+ }
+ pgdat_resize_unlock(pgdat, &flags);
+ }
+
+ printk("%lu pages RAM\n", total);
+#ifdef CONFIG_HIGHMEM
+ printk("%lu pages HighMem\n", highmem);
+#endif
+ printk("%lu pages reserved\n", reserved);
+ printk("%lu pages shared\n", shared);
+ printk("%lu pages non-shared\n", nonshared);
+#ifdef CONFIG_QUICKLIST
+ printk("%lu pages in pagetable cache\n",
+ quicklist_total_size());
+#endif
+}