6 files changed, 59 insertions, 0 deletions

diff --git a/sys/dev/ahci/ahci.c b/sys/dev/ahci/ahci.c
index 5c5971aec059..ff99b9cc0df2 100644
--- a/sys/dev/ahci/ahci.c
+++ b/sys/dev/ahci/ahci.c
@@ -774,6 +774,16 @@ ahci_print_child(device_t dev, device_t child)
 	return (retval);
 }
 
+static int
+ahci_child_location_str(device_t dev, device_t child, char *buf,
+    size_t buflen)
+{
+
+	snprintf(buf, buflen, "channel=%d",
+	    (int)(intptr_t)device_get_ivars(child));
+	return (0);
+}
+
 devclass_t ahci_devclass;
 static device_method_t ahci_methods[] = {
 	DEVMETHOD(device_probe,     ahci_probe),
@@ -786,6 +796,7 @@ static device_method_t ahci_methods[] = {
 	DEVMETHOD(bus_release_resource,     ahci_release_resource),
 	DEVMETHOD(bus_setup_intr,   ahci_setup_intr),
 	DEVMETHOD(bus_teardown_intr,ahci_teardown_intr),
+	DEVMETHOD(bus_child_location_str, ahci_child_location_str),
 	{ 0, 0 }
 };
 static driver_t ahci_driver = {
@@ -805,6 +816,7 @@ static device_method_t ahci_ata_methods[] = {
 	DEVMETHOD(bus_release_resource,     ahci_release_resource),
 	DEVMETHOD(bus_setup_intr,   ahci_setup_intr),
 	DEVMETHOD(bus_teardown_intr,ahci_teardown_intr),
+	DEVMETHOD(bus_child_location_str, ahci_child_location_str),
 	{ 0, 0 }
 };
 static driver_t ahci_ata_driver = {
diff --git a/sys/dev/ata/ata-pci.c b/sys/dev/ata/ata-pci.c
index 527107363fea..fea7c96cdbd0 100644
--- a/sys/dev/ata/ata-pci.c
+++ b/sys/dev/ata/ata-pci.c
@@ -544,6 +544,16 @@ ata_pci_dmafini(device_t dev)
     ata_dmafini(dev);
 }
 
+int
+ata_pci_child_location_str(device_t dev, device_t child, char *buf,
+    size_t buflen)
+{
+
+	snprintf(buf, buflen, "channel=%d",
+	    (int)(intptr_t)device_get_ivars(child));
+	return (0);
+}
+
 static device_method_t ata_pci_methods[] = {
     /* device interface */
     DEVMETHOD(device_probe,             ata_pci_probe),
@@ -564,6 +574,7 @@ static device_method_t ata_pci_methods[] = {
     DEVMETHOD(bus_teardown_intr,        ata_pci_teardown_intr),
     DEVMETHOD(pci_read_config,		ata_pci_read_config),
     DEVMETHOD(pci_write_config,		ata_pci_write_config),
+    DEVMETHOD(bus_child_location_str,	ata_pci_child_location_str),
 
     { 0, 0 }
 };
diff --git a/sys/dev/ata/ata-pci.h b/sys/dev/ata/ata-pci.h
index 1378f879ce0c..7fa76440ed6d 100644
--- a/sys/dev/ata/ata-pci.h
+++ b/sys/dev/ata/ata-pci.h
@@ -502,6 +502,8 @@ int ata_pci_write_ivar(device_t dev, device_t child, int which, uintptr_t value)
 uint32_t ata_pci_read_config(device_t dev, device_t child, int reg, int width);
 void ata_pci_write_config(device_t dev, device_t child, int reg, 
     uint32_t val, int width);
+int ata_pci_child_location_str(device_t dev, device_t child, char *buf,
+    size_t buflen);
 struct resource * ata_pci_alloc_resource(device_t dev, device_t child, int type, int *rid, u_long start, u_long end, u_long count, u_int flags);
 int ata_pci_release_resource(device_t dev, device_t child, int type, int rid, struct resource *r);
 int ata_pci_setup_intr(device_t dev, device_t child, struct resource *irq, int flags, driver_filter_t *filter, driver_intr_t *function, void *argument, void **cookiep);
@@ -550,6 +552,7 @@ static device_method_t __CONCAT(dname,_methods)[] = { \
     DEVMETHOD(bus_teardown_intr,        ata_pci_teardown_intr), \
     DEVMETHOD(pci_read_config,		ata_pci_read_config), \
     DEVMETHOD(pci_write_config,		ata_pci_write_config), \
+    DEVMETHOD(bus_child_location_str,	ata_pci_child_location_str), \
     { 0, 0 } \
 }; \
 static driver_t __CONCAT(dname,_driver) = { \
diff --git a/sys/dev/mvs/mvs_pci.c b/sys/dev/mvs/mvs_pci.c
index 427bad913701..6b18e2c8ef64 100644
--- a/sys/dev/mvs/mvs_pci.c
+++ b/sys/dev/mvs/mvs_pci.c
@@ -484,6 +484,16 @@ mvs_print_child(device_t dev, device_t child)
 	return (retval);
 }
 
+static int
+mvs_child_location_str(device_t dev, device_t child, char *buf,
+    size_t buflen)
+{
+
+	snprintf(buf, buflen, "channel=%d",
+	    (int)(intptr_t)device_get_ivars(child));
+	return (0);
+}
+
 static device_method_t mvs_methods[] = {
 	DEVMETHOD(device_probe,     mvs_probe),
 	DEVMETHOD(device_attach,    mvs_attach),
@@ -495,6 +505,7 @@ static device_method_t mvs_methods[] = {
 	DEVMETHOD(bus_release_resource,     mvs_release_resource),
 	DEVMETHOD(bus_setup_intr,   mvs_setup_intr),
 	DEVMETHOD(bus_teardown_intr,mvs_teardown_intr),
+	DEVMETHOD(bus_child_location_str, mvs_child_location_str),
 	DEVMETHOD(mvs_edma,         mvs_edma),
 	{ 0, 0 }
 };
diff --git a/sys/dev/mvs/mvs_soc.c b/sys/dev/mvs/mvs_soc.c
index beaf18d4b443..03029c256242 100644
--- a/sys/dev/mvs/mvs_soc.c
+++ b/sys/dev/mvs/mvs_soc.c
@@ -415,6 +415,16 @@ mvs_print_child(device_t dev, device_t child)
 	return (retval);
 }
 
+static int
+mvs_child_location_str(device_t dev, device_t child, char *buf,
+    size_t buflen)
+{
+
+	snprintf(buf, buflen, "channel=%d",
+	    (int)(intptr_t)device_get_ivars(child));
+	return (0);
+}
+
 static device_method_t mvs_methods[] = {
 	DEVMETHOD(device_probe,     mvs_probe),
 	DEVMETHOD(device_attach,    mvs_attach),
@@ -427,6 +437,7 @@ static device_method_t mvs_methods[] = {
 	DEVMETHOD(bus_setup_intr,   mvs_setup_intr),
 	DEVMETHOD(bus_teardown_intr,mvs_teardown_intr),
 	DEVMETHOD(mvs_edma,         mvs_edma),
+	DEVMETHOD(bus_child_location_str, mvs_child_location_str),
 	{ 0, 0 }
 };
 static driver_t mvs_driver = {
diff --git a/sys/dev/siis/siis.c b/sys/dev/siis/siis.c
index 533755345f8f..9d026e4ce808 100644
--- a/sys/dev/siis/siis.c
+++ b/sys/dev/siis/siis.c
@@ -400,6 +400,16 @@ siis_print_child(device_t dev, device_t child)
 	return (retval);
 }
 
+static int
+siis_child_location_str(device_t dev, device_t child, char *buf,
+    size_t buflen)
+{
+
+	snprintf(buf, buflen, "channel=%d",
+	    (int)(intptr_t)device_get_ivars(child));
+	return (0);
+}
+
 devclass_t siis_devclass;
 static device_method_t siis_methods[] = {
 	DEVMETHOD(device_probe,     siis_probe),
@@ -412,6 +422,7 @@ static device_method_t siis_methods[] = {
 	DEVMETHOD(bus_release_resource,     siis_release_resource),
 	DEVMETHOD(bus_setup_intr,   siis_setup_intr),
 	DEVMETHOD(bus_teardown_intr,siis_teardown_intr),
+	DEVMETHOD(bus_child_location_str, siis_child_location_str),
 	{ 0, 0 }
 };
 static driver_t siis_driver = {