Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / powerpc / kernel / suspend.c

diff --git a/kernel/arch/powerpc/kernel/suspend.c b/kernel/arch/powerpc/kernel/suspend.c
new file mode 100644 (file)
index 0000000..a531154
--- /dev/null
+++ b/kernel/arch/powerpc/kernel/suspend.c
@@ -0,0 +1,23 @@
+/*
+ * Suspend support specific for power.
+ *
+ * Distribute under GPLv2
+ *
+ * Copyright (c) 2002 Pavel Machek <pavel@ucw.cz>
+ * Copyright (c) 2001 Patrick Mochel <mochel@osdl.org>
+ */
+
+#include <linux/mm.h>
+#include <asm/page.h>
+#include <asm/sections.h>
+
+/*
+ *     pfn_is_nosave - check if given pfn is in the 'nosave' section
+ */
+
+int pfn_is_nosave(unsigned long pfn)
+{
+       unsigned long nosave_begin_pfn = __pa(&__nosave_begin) >> PAGE_SHIFT;
+       unsigned long nosave_end_pfn = PAGE_ALIGN(__pa(&__nosave_end)) >> PAGE_SHIFT;
+       return (pfn >= nosave_begin_pfn) && (pfn < nosave_end_pfn);
+}