Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / cris / mm / init.c

diff --git a/kernel/arch/cris/mm/init.c b/kernel/arch/cris/mm/init.c
new file mode 100644 (file)
index 0000000..1e7fd45
--- /dev/null
+++ b/kernel/arch/cris/mm/init.c
@@ -0,0 +1,68 @@
+/*
+ *  linux/arch/cris/mm/init.c
+ *
+ *  Copyright (C) 1995  Linus Torvalds
+ *  Copyright (C) 2000,2001  Axis Communications AB
+ *
+ *  Authors:  Bjorn Wesen (bjornw@axis.com)
+ *
+ */
+
+#include <linux/gfp.h>
+#include <linux/init.h>
+#include <linux/bootmem.h>
+#include <linux/proc_fs.h>
+#include <linux/kcore.h>
+#include <asm/tlb.h>
+#include <asm/sections.h>
+
+unsigned long empty_zero_page;
+EXPORT_SYMBOL(empty_zero_page);
+
+void __init mem_init(void)
+{
+       BUG_ON(!mem_map);
+
+       /* max/min_low_pfn was set by setup.c
+        * now we just copy it to some other necessary places...
+        *
+        * high_memory was also set in setup.c
+        */
+       max_mapnr = max_low_pfn - min_low_pfn;
+        free_all_bootmem();
+       mem_init_print_info(NULL);
+}
+
+/* Free a range of init pages. Virtual addresses. */
+
+void free_init_pages(const char *what, unsigned long begin, unsigned long end)
+{
+       unsigned long addr;
+
+       for (addr = begin; addr < end; addr += PAGE_SIZE) {
+               ClearPageReserved(virt_to_page(addr));
+               init_page_count(virt_to_page(addr));
+               free_page(addr);
+               totalram_pages++;
+       }
+
+       printk(KERN_INFO "Freeing %s: %ldk freed\n", what, (end - begin) >> 10);
+}
+
+/* Free the pages occupied by initialization code. */
+
+void free_initmem(void)
+{
+       free_initmem_default(-1);
+}
+
+/* Free the pages occupied by initrd code. */
+
+#ifdef CONFIG_BLK_DEV_INITRD
+void free_initrd_mem(unsigned long start, unsigned long end)
+{
+       free_init_pages("initrd memory",
+                       start,
+                       end);
+}
+#endif