1 files changed, 42 insertions, 0 deletions

diff --git a/arch/sparc/power/hibernate.c b/arch/sparc/power/hibernate.c
new file mode 100644
index 000000000000..42b0b8ce699a
--- /dev/null
+++ b/arch/sparc/power/hibernate.c
@@ -0,0 +1,42 @@
+/*
+ * hibernate.c:  Hibernaton support specific for sparc64.
+ *
+ * Copyright (C) 2013 Kirill V Tkhai (tkhai@yandex.ru)
+ */
+
+#include <linux/mm.h>
+
+#include <asm/hibernate.h>
+#include <asm/visasm.h>
+#include <asm/page.h>
+#include <asm/tlb.h>
+
+/* References to section boundaries */
+extern const void __nosave_begin, __nosave_end;
+
+struct saved_context saved_context;
+
+/*
+ *      pfn_is_nosave - check if given pfn is in the 'nosave' section
+ */
+
+int pfn_is_nosave(unsigned long pfn)
+{
+        unsigned long nosave_begin_pfn = PFN_DOWN((unsigned long)&__nosave_begin);
+        unsigned long nosave_end_pfn = PFN_DOWN((unsigned long)&__nosave_end);
+
+        return (pfn >= nosave_begin_pfn) && (pfn < nosave_end_pfn);
+}
+
+void save_processor_state(void)
+{
+        save_and_clear_fpu();
+}
+
+void restore_processor_state(void)
+{
+        struct mm_struct *mm = current->active_mm;
+
+        load_secondary_context(mm);
+        tsb_context_switch(mm);
+}