ahci hibernate device selection code; not yet tested

This code is from deraadt@

1 files changed, 16 insertions, 0 deletions

diff --git a/sys/arch/i386/i386/hibernate_machdep.c b/sys/arch/i386/i386/hibernate_machdep.c
index 33b7acbf6e8..cd06f8a9bb1 100644
--- a/sys/arch/i386/i386/hibernate_machdep.c
+++ b/sys/arch/i386/i386/hibernate_machdep.c
@@ -40,6 +40,8 @@
 
 #include "acpi.h"
 #include "wd.h"
+#include "ahci.h"
+#include "sd.h"
 
 #if NWD > 0
 #include <dev/ata/atavar.h>
@@ -74,6 +76,20 @@ get_hibernate_io_function(void)
 	if (strcmp(findblkname(major(swdevt[0].sw_dev)), "wd") == 0)
 		return wd_hibernate_io;
 #endif
+#if NAHCI > 0 && NSD > 0
+	if (strcmp(findblkname(major(swdevt[0].sw_dev)), "sd") == 0) {
+		extern struct cfdriver sd_cd;
+		extern int ahci_hibernate_io(dev_t dev, daddr_t blkno,
+		    vaddr_t addr, size_t size, int wr, void *page);
+		struct device *dv;
+
+		dv = disk_lookup(&sd_cd, DISKUNIT(swdevt[0].sw_dev));
+		if (dv && dv->dv_parent && dv->dv_parent->dv_parent &&
+		    strcmp(dv->dv_parent->dv_parent->dv_cfdata->cf_driver->cd_name,
+		    "ahci") == 0)
+		return ahci_hibernate_io;
+	}
+#endif
 	return NULL;
 }