From 849369d6c66d3054688672f97d31fceb8e8230fb Mon Sep 17 00:00:00 2001 From: root Date: Fri, 25 Dec 2015 04:40:36 +0000 Subject: initial_commit --- arch/powerpc/kernel/suspend.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 arch/powerpc/kernel/suspend.c (limited to 'arch/powerpc/kernel/suspend.c') diff --git a/arch/powerpc/kernel/suspend.c b/arch/powerpc/kernel/suspend.c new file mode 100644 index 00000000..0167d53d --- /dev/null +++ b/arch/powerpc/kernel/suspend.c @@ -0,0 +1,25 @@ +/* + * Suspend support specific for power. + * + * Distribute under GPLv2 + * + * Copyright (c) 2002 Pavel Machek + * Copyright (c) 2001 Patrick Mochel + */ + +#include +#include + +/* References to section boundaries */ +extern const void __nosave_begin, __nosave_end; + +/* + * 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); +} -- cgit v1.2.3