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authorJohannes Berg <johannes@sipsolutions.net>2007-05-03 22:31:38 +1000
committerPaul Mackerras <paulus@samba.org>2007-05-07 20:31:14 +1000
commit543b9fd3528f64c4b20439de0edb453764482de7 (patch)
tree50271e7d5365b088bea63a5a2938aedf3aa87741 /arch/powerpc/kernel/swsusp_64.c
parent7e11580b362fc64693de7ad5c11fbf3d1d9d0e50 (diff)
[POWERPC] powermac: Suspend to disk on G5
Powermac G5 suspend to disk implementation. The code is platform agnostic but only tested on powermac, no other 64-bit powerpc machines. Because nvidiafb still breaks suspend I have marked it EXPERIMENTAL on powermac and because I can't test it and some lowlevel code will need changes it is BROKEN on all other 64-bit platforms. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel/swsusp_64.c')
-rw-r--r--arch/powerpc/kernel/swsusp_64.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/swsusp_64.c b/arch/powerpc/kernel/swsusp_64.c
new file mode 100644
index 00000000000..6f3f0697274
--- /dev/null
+++ b/arch/powerpc/kernel/swsusp_64.c
@@ -0,0 +1,24 @@
+/*
+ * PowerPC 64-bit swsusp implementation
+ *
+ * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
+ *
+ * GPLv2
+ */
+
+#include <asm/system.h>
+#include <asm/iommu.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+
+void do_after_copyback(void)
+{
+ iommu_restore();
+ touch_softlockup_watchdog();
+ mb();
+}
+
+void _iommu_save(void)
+{
+ iommu_save();
+}