s390 2.6.25 patch queue.

68 lines not on this page · raw message

Index: quilt-2.6/drivers/s390/cio/ccwgroup.c
===================================================================
@@ -35,8 +35,8 @@ ccwgroup_bus_match (struct device * dev,
 	struct ccwgroup_device *gdev;
 	struct ccwgroup_driver *gdrv;
 
-	gdev = container_of(dev, struct ccwgroup_device, dev);
-	gdrv = container_of(drv, struct ccwgroup_driver, driver);
+	gdev = to_ccwgroupdev(dev);
+	gdrv = to_ccwgroupdrv(drv);
 
 	if (gdev->creator_id == gdrv->driver_id)
 		return 1;

Index: quilt-2.6/drivers/s390/cio/css.c
===================================================================
@@ -787,8 +787,8 @@ int sch_is_pseudo_sch(struct subchannel 
 static int
 css_bus_match (struct device *dev, struct device_driver *drv)
 {
-	struct subchannel *sch = container_of (dev, struct subchannel, dev);
-	struct css_driver *driver = container_of (drv, struct css_driver, drv);
+	struct subchannel *sch = to_subchannel(dev);
+	struct css_driver *driver = to_cssdriver(drv);
 
 	if (sch->st == driver->subchannel_type)
 		return 1;

@@ -802,7 +802,7 @@ css_probe (struct device *dev)
 	struct subchannel *sch;
 
 	sch = to_subchannel(dev);
-	sch->driver = container_of (dev->driver, struct css_driver, drv);
+	sch->driver = to_cssdriver(dev->driver);
 	return (sch->driver->probe ? sch->driver->probe(sch) : 0);
 }
 

Index: quilt-2.6/drivers/s390/cio/css.h
===================================================================
@@ -134,6 +134,8 @@ struct css_driver {
 	void (*shutdown)(struct subchannel *);
 };
 
+#define to_cssdriver(n) container_of(n, struct css_driver, drv)
+
 /*
  * all css_drivers have the css_bus_type
  */

Index: quilt-2.6/drivers/s390/cio/chsc.c
===================================================================
@@ -132,7 +132,7 @@ static void terminate_internal_io(struct
 	device_set_intretry(sch);
 	/* Call handler. */
 	if (sch->driver && sch->driver->termination)
-		sch->driver->termination(&sch->dev);
+		sch->driver->termination(sch);
 }
 
 static int

@@ -172,12 +172,12 @@ s390_subchannel_remove_chpid(struct devi
 			terminate_internal_io(sch);
 			/* Re-start path verification. */
 			if (sch->driver && sch->driver->verify)
-				sch->driver->verify(&sch->dev);
+				sch->driver->verify(sch);
 		}
 	} else {
 		/* trigger path verification. */
 		if (sch->driver && sch->driver->verify)
-			sch->driver->verify(&sch->dev);
+			sch->driver->verify(sch);
 		else if (sch->lpm == mask)
 			goto out_unreg;
 	}

@@ -279,7 +279,7 @@ __s390_process_res_acc(struct subchannel
 	if (!old_lpm && sch->lpm)
 		device_trigger_reprobe(sch);
 	else if (sch->driver && sch->driver->verify)
-		sch->driver->verify(&sch->dev);
+		sch->driver->verify(sch);
 out:
 	spin_unlock_irq(sch->lock);
 	put_device(&sch->dev);

@@ -549,7 +549,7 @@ __chp_add(struct subchannel_id schid, vo
 		    | mask) & sch->opm;
 
 	if (sch->driver && sch->driver->verify)
-		sch->driver->verify(&sch->dev);
+		sch->driver->verify(sch);
 
 	spin_unlock_irq(sch->lock);
 	put_device(&sch->dev);

@@ -589,7 +589,7 @@ static void __s390_subchannel_vary_chpid
 			if (!old_lpm)
 				device_trigger_reprobe(sch);
 			else if (sch->driver && sch->driver->verify)
-				sch->driver->verify(&sch->dev);
+				sch->driver->verify(sch);
 			break;
 		}
 		sch->opm &= ~mask;

@@ -603,13 +603,13 @@ static void __s390_subchannel_vary_chpid
 				terminate_internal_io(sch);
 				/* Re-start path verification. */
 				if (sch->driver && sch->driver->verify)
-					sch->driver->verify(&sch->dev);
+					sch->driver->verify(sch);
 			}
 		} else if (!sch->lpm) {
 			if (device_trigger_verify(sch) != 0)
 				css_schedule_eval(sch->schid);
 		} else if (sch->driver && sch->driver->verify)
-			sch->driver->verify(&sch->dev);
+			sch->driver->verify(sch);
 		break;
 	}
 	spin_unlock_irqrestore(sch->lock, flags);

Index: quilt-2.6/drivers/s390/cio/cio.c
===================================================================
@@ -147,7 +147,7 @@ cio_tpi(void)
 	spin_lock(sch->lock);
 	memcpy (&sch->schib.scsw, &irb->scsw, sizeof (struct scsw));
 	if (sch->driver && sch->driver->irq)
-		sch->driver->irq(&sch->dev);
+		sch->driver->irq(sch);
 	spin_unlock(sch->lock);
 	irq_exit ();
 	_local_bh_enable();

@@ -680,7 +680,7 @@ do_IRQ (struct pt_regs *regs)
 				sizeof (irb->scsw));
 			/* Call interrupt handler if there is one. */
 			if (sch->driver && sch->driver->irq)
-				sch->driver->irq(&sch->dev);
+				sch->driver->irq(sch);
 		}
 		if (sch)
 			spin_unlock(sch->lock);

Index: quilt-2.6/drivers/s390/cio/css.c
===================================================================
@@ -293,7 +293,7 @@ static int css_evaluate_known_subchannel
 		action = UNREGISTER;
 		if (sch->driver && sch->driver->notify) {
 			spin_unlock_irqrestore(sch->lock, flags);
-			ret = sch->driver->notify(&sch->dev, event);
+			ret = sch->driver->notify(sch, event);
 			spin_lock_irqsave(sch->lock, flags);
 			if (ret)
 				action = NONE;

Index: quilt-2.6/drivers/s390/cio/css.h
===================================================================
@@ -125,10 +125,10 @@ struct subchannel;
 struct css_driver {
 	unsigned int subchannel_type;
 	struct device_driver drv;
-	void (*irq)(struct device *);
-	int (*notify)(struct device *, int);
-	void (*verify)(struct device *);
-	void (*termination)(struct device *);
+	void (*irq)(struct subchannel *);
+	int (*notify)(struct subchannel *, int);
+	void (*verify)(struct subchannel *);
+	void (*termination)(struct subchannel *);
 	int (*probe)(struct subchannel *);
 	int (*remove)(struct subchannel *);
 	void (*shutdown)(struct subchannel *);

Index: quilt-2.6/drivers/s390/cio/device.c
===================================================================
@@ -115,11 +115,12 @@ static int ccw_uevent(struct device *dev
 
 struct bus_type ccw_bus_type;
 
-static int io_subchannel_probe (struct subchannel *);
-static int io_subchannel_remove (struct subchannel *);
-static int io_subchannel_notify(struct device *, int);
-static void io_subchannel_verify(struct device *);
-static void io_subchannel_ioterm(struct device *);
+static void io_subchannel_irq(struct subchannel *);
+static int io_subchannel_probe(struct subchannel *);
+static int io_subchannel_remove(struct subchannel *);
+static int io_subchannel_notify(struct subchannel *, int);
+static void io_subchannel_verify(struct subchannel *);
+static void io_subchannel_ioterm(struct subchannel *);
 static void io_subchannel_shutdown(struct subchannel *);
 
 static struct css_driver io_subchannel_driver = {

@@ -1096,6 +1097,18 @@ out:
 	put_device(&cdev->dev);
 }
 
+static void io_subchannel_irq(struct subchannel *sch)
+{
+	struct ccw_device *cdev;
+
+	cdev = sch->dev.driver_data;
+
+	CIO_TRACE_EVENT(3, "IRQ");
+	CIO_TRACE_EVENT(3, sch->dev.bus_id);
+	if (cdev)
+		dev_fsm_event(cdev, DEV_EVENT_INTERRUPT);
+}
+
 static int
 io_subchannel_probe (struct subchannel *sch)
 {

@@ -1183,12 +1196,11 @@ io_subchannel_remove (struct subchannel 
 	return 0;
 }
 
-static int
-io_subchannel_notify(struct device *dev, int event)
+static int io_subchannel_notify(struct subchannel *sch, int event)
 {
 	struct ccw_device *cdev;
 
-	cdev = dev->driver_data;
+	cdev = sch->dev.driver_data;
 	if (!cdev)
 		return 0;
 	if (!cdev->drv)

@@ -1198,22 +1210,20 @@ io_subchannel_notify(struct device *dev,
 	return cdev->drv->notify ? cdev->drv->notify(cdev, event) : 0;
 }
 
-static void
-io_subchannel_verify(struct device *dev)
+static void io_subchannel_verify(struct subchannel *sch)
 {
 	struct ccw_device *cdev;
 
-	cdev = dev->driver_data;
+	cdev = sch->dev.driver_data;
 	if (cdev)
 		dev_fsm_event(cdev, DEV_EVENT_VERIFY);
 }
 
-static void
-io_subchannel_ioterm(struct device *dev)
+static void io_subchannel_ioterm(struct subchannel *sch)
 {
 	struct ccw_device *cdev;
 
-	cdev = dev->driver_data;
+	cdev = sch->dev.driver_data;
 	if (!cdev)
 		return;
 	/* Internal I/O will be retried by the interrupt handler. */

Index: quilt-2.6/drivers/s390/cio/device_fsm.c
===================================================================
@@ -399,7 +399,7 @@ ccw_device_oper_notify(struct work_struc
 	sch = to_subchannel(cdev->dev.parent);
 	if (sch->driver && sch->driver->notify) {
 		spin_unlock_irqrestore(cdev->ccwlock, flags);
-		ret = sch->driver->notify(&sch->dev, CIO_OPER);
+		ret = sch->driver->notify(sch, CIO_OPER);
 		spin_lock_irqsave(cdev->ccwlock, flags);
 	} else
 		ret = 0;

@@ -1273,21 +1273,4 @@ fsm_func_t *dev_jumptable[NR_DEV_STATES]
 	},
 };
 
-/*
- * io_subchannel_irq is called for "real" interrupts or for status
- * pending conditions on msch.
- */
-void
-io_subchannel_irq (struct device *pdev)
-{
-	struct ccw_device *cdev;
-
-	cdev = to_subchannel(pdev)->dev.driver_data;
-
-	CIO_TRACE_EVENT (3, "IRQ");
-	CIO_TRACE_EVENT (3, pdev->bus_id);
-	if (cdev)
-		dev_fsm_event(cdev, DEV_EVENT_INTERRUPT);
-}
-
 EXPORT_SYMBOL_GPL(ccw_device_set_timeout);

Index: quilt-2.6/drivers/s390/cio/device.h
===================================================================
@@ -74,7 +74,6 @@ extern struct workqueue_struct *ccw_devi
 extern wait_queue_head_t ccw_device_init_wq;
 extern atomic_t ccw_device_init_count;
 
-void io_subchannel_irq (struct device *pdev);
 void io_subchannel_recog_done(struct ccw_device *cdev);
 
 int ccw_device_cancel_halt_clear(struct ccw_device *);

Index: quilt-2.6/drivers/s390/cio/css.c
===================================================================
@@ -796,32 +796,36 @@ css_bus_match (struct device *dev, struc
 	return 0;
 }
 
-static int
-css_probe (struct device *dev)
+static int css_probe(struct device *dev)
 {
 	struct subchannel *sch;
+	int ret;
 
 	sch = to_subchannel(dev);
 	sch->driver = to_cssdriver(dev->driver);
-	return (sch->driver->probe ? sch->driver->probe(sch) : 0);
+	ret = sch->driver->probe ? sch->driver->probe(sch) : 0;
+	if (ret)
+		sch->driver = NULL;
+	return ret;
 }
 
-static int
-css_remove (struct device *dev)
+static int css_remove(struct device *dev)
 {
 	struct subchannel *sch;
+	int ret;
 
 	sch = to_subchannel(dev);
-	return (sch->driver->remove ? sch->driver->remove(sch) : 0);
+	ret = sch->driver->remove ? sch->driver->remove(sch) : 0;
+	sch->driver = NULL;
+	return ret;
 }
 
-static void
-css_shutdown (struct device *dev)
+static void css_shutdown(struct device *dev)
 {
 	struct subchannel *sch;
 
 	sch = to_subchannel(dev);
-	if (sch->driver->shutdown)
+	if (sch->driver && sch->driver->shutdown)
 		sch->driver->shutdown(sch);
 }
 

Index: quilt-2.6/drivers/s390/cio/css.c
===================================================================
@@ -837,6 +837,33 @@ struct bus_type css_bus_type = {
 	.shutdown = css_shutdown,
 };
 
+/**
+ * css_driver_register - register a css driver
+ * @cdrv: css driver to register
+ *
+ * This is mainly a wrapper around driver_register that sets name
+ * and bus_type in the embedded struct device_driver correctly.
+ */
+int css_driver_register(struct css_driver *cdrv)
+{
+	cdrv->drv.name = cdrv->name;
+	cdrv->drv.bus = &css_bus_type;
+	return driver_register(&cdrv->drv);
+}
+EXPORT_SYMBOL_GPL(css_driver_register);
+
+/**
+ * css_driver_unregister - unregister a css driver
+ * @cdrv: css driver to unregister
+ *
+ * This is a wrapper around driver_unregister.
+ */
+void css_driver_unregister(struct css_driver *cdrv)
+{
+	driver_unregister(&cdrv->drv);
+}
+EXPORT_SYMBOL_GPL(css_driver_unregister);
+
 subsys_initcall(init_channel_subsystem);
 
 MODULE_LICENSE("GPL");

Index: quilt-2.6/drivers/s390/cio/css.h
===================================================================
@@ -132,6 +132,7 @@ struct css_driver {
 	int (*probe)(struct subchannel *);
 	int (*remove)(struct subchannel *);
 	void (*shutdown)(struct subchannel *);
+	const char *name;
 };
 
 #define to_cssdriver(n) container_of(n, struct css_driver, drv)

@@ -141,6 +142,9 @@ struct css_driver {
  */
 extern struct bus_type css_bus_type;
 
+extern int css_driver_register(struct css_driver *);
+extern void css_driver_unregister(struct css_driver *);
+
 extern void css_sch_device_unregister(struct subchannel *);
 extern struct subchannel * get_subchannel_by_schid(struct subchannel_id);
 extern int css_init_done;

Index: quilt-2.6/drivers/s390/cio/device.c
===================================================================
@@ -125,10 +125,7 @@ static void io_subchannel_shutdown(struc
 
 static struct css_driver io_subchannel_driver = {
 	.subchannel_type = SUBCHANNEL_TYPE_IO,
-	.drv = {
-		.name = "io_subchannel",
-		.bus  = &css_bus_type,
-	},
+	.name = "io_subchannel",
 	.irq = io_subchannel_irq,
 	.notify = io_subchannel_notify,
 	.verify = io_subchannel_verify,

@@ -167,7 +164,8 @@ init_ccw_bus_type (void)
 	if ((ret = bus_register (&ccw_bus_type)))
 		goto out_err;
 
-	if ((ret = driver_register(&io_subchannel_driver.drv)))
+	ret = css_driver_register(&io_subchannel_driver);
+	if (ret)
 		goto out_err;
 
 	wait_event(ccw_device_init_wq,

@@ -187,7 +185,7 @@ out_err:
 static void __exit
 cleanup_ccw_bus_type (void)
 {
-	driver_unregister(&io_subchannel_driver.drv);
+	css_driver_unregister(&io_subchannel_driver);
 	bus_unregister(&ccw_bus_type);
 	destroy_workqueue(ccw_device_notify_work);
 	destroy_workqueue(ccw_device_work);

Index: quilt-2.6/drivers/s390/cio/cio.c
===================================================================
@@ -56,39 +56,37 @@ __setup ("cio_msg=", cio_setup);
 
 /*
  * Function: cio_debug_init
- * Initializes three debug logs (under /proc/s390dbf) for common I/O:
- * - cio_msg logs the messages which are printk'ed when CONFIG_DEBUG_IO is on
+ * Initializes three debug logs for common I/O:
+ * - cio_msg logs generic cio messages
  * - cio_trace logs the calling of different functions
- * - cio_crw logs the messages which are printk'ed when CONFIG_DEBUG_CRW is on
- * debug levels depend on CONFIG_DEBUG_IO resp. CONFIG_DEBUG_CRW
+ * - cio_crw logs machine check related cio messages
  */
-static int __init
-cio_debug_init (void)
+static int __init cio_debug_init(void)
 {
-	cio_debug_msg_id = debug_register ("cio_msg", 16, 4, 16*sizeof (long));
+	cio_debug_msg_id = debug_register("cio_msg", 16, 4, 16 * sizeof(long));
 	if (!cio_debug_msg_id)
 		goto out_unregister;
-	debug_register_view (cio_debug_msg_id, &debug_sprintf_view);
-	debug_set_level (cio_debug_msg_id, 2);
-	cio_debug_trace_id = debug_register ("cio_trace", 16, 4, 16);
+	debug_register_view(cio_debug_msg_id, &debug_sprintf_view);
+	debug_set_level(cio_debug_msg_id, 2);
+	cio_debug_trace_id = debug_register("cio_trace", 16, 4, 16);
 	if (!cio_debug_trace_id)
 		goto out_unregister;
-	debug_register_view (cio_debug_trace_id, &debug_hex_ascii_view);
-	debug_set_level (cio_debug_trace_id, 2);
-	cio_debug_crw_id = debug_register ("cio_crw", 4, 4, 16*sizeof (long));
+	debug_register_view(cio_debug_trace_id, &debug_hex_ascii_view);
+	debug_set_level(cio_debug_trace_id, 2);
+	cio_debug_crw_id = debug_register("cio_crw", 16, 4, 16 * sizeof(long));
 	if (!cio_debug_crw_id)
 		goto out_unregister;
-	debug_register_view (cio_debug_crw_id, &debug_sprintf_view);
-	debug_set_level (cio_debug_crw_id, 2);
+	debug_register_view(cio_debug_crw_id, &debug_sprintf_view);
+	debug_set_level(cio_debug_crw_id, 4);
 	return 0;
 
 out_unregister:
 	if (cio_debug_msg_id)
-		debug_unregister (cio_debug_msg_id);
+		debug_unregister(cio_debug_msg_id);
 	if (cio_debug_trace_id)
-		debug_unregister (cio_debug_trace_id);
+		debug_unregister(cio_debug_trace_id);
 	if (cio_debug_crw_id)
-		debug_unregister (cio_debug_crw_id);
+		debug_unregister(cio_debug_crw_id);
 	printk(KERN_WARNING"cio: could not initialize debugging\n");
 	return -1;
 }

@@ -567,7 +565,7 @@ cio_validate_subchannel (struct subchann
 	 */
 	if (sch->st != 0) {
 		CIO_DEBUG(KERN_INFO, 0,
-			  "cio: Subchannel 0.%x.%04x reports "
+			  "Subchannel 0.%x.%04x reports "
 			  "non-I/O subchannel type %04X\n",
 			  sch->schid.ssid, sch->schid.sch_no, sch->st);
 		/* We stop here for non-io subchannels. */

@@ -600,7 +598,7 @@ cio_validate_subchannel (struct subchann
 	sch->lpm = sch->schib.pmcw.pam & sch->opm;
 
 	CIO_DEBUG(KERN_INFO, 0,
-		  "cio: Detected device %04x on subchannel 0.%x.%04X"
+		  "Detected device %04x on subchannel 0.%x.%04X"
 		  " - PIM = %02X, PAM = %02X, POM = %02X\n",
 		  sch->schib.pmcw.dev, sch->schid.ssid,
 		  sch->schid.sch_no, sch->schib.pmcw.pim,

Index: quilt-2.6/drivers/s390/cio/cio_debug.h
===================================================================
@@ -8,20 +8,19 @@ extern debug_info_t *cio_debug_msg_id;
 extern debug_info_t *cio_debug_trace_id;
 extern debug_info_t *cio_debug_crw_id;
 
-#define CIO_TRACE_EVENT(imp, txt) do { \
+#define CIO_TRACE_EVENT(imp, txt) do {				\
 		debug_text_event(cio_debug_trace_id, imp, txt); \
 	} while (0)
 
-#define CIO_MSG_EVENT(imp, args...) do { \
-		debug_sprintf_event(cio_debug_msg_id, imp , ##args); \
+#define CIO_MSG_EVENT(imp, args...) do {				\
+		debug_sprintf_event(cio_debug_msg_id, imp , ##args);	\
 	} while (0)
 
-#define CIO_CRW_EVENT(imp, args...) do { \
-		debug_sprintf_event(cio_debug_crw_id, imp , ##args); \
+#define CIO_CRW_EVENT(imp, args...) do {				\
+		debug_sprintf_event(cio_debug_crw_id, imp , ##args);	\
 	} while (0)
 
-static inline void
-CIO_HEX_EVENT(int level, void *data, int length)
+static inline void CIO_HEX_EVENT(int level, void *data, int length)
 {
 	if (unlikely(!cio_debug_trace_id))
 		return;

@@ -32,9 +31,10 @@ CIO_HEX_EVENT(int level, void *data, int
 	}
 }
 
-#define CIO_DEBUG(printk_level,event_level,msg...) ({ \
-	if (cio_show_msg) printk(printk_level msg); \
-	CIO_MSG_EVENT (event_level, msg); \
-})
+#define CIO_DEBUG(printk_level, event_level, msg...) do {	\
+		if (cio_show_msg)				\
+			printk(printk_level "cio: " msg);	\
+		CIO_MSG_EVENT(event_level, msg);		\
+	} while (0)
 
 #endif

Index: quilt-2.6/drivers/s390/cio/device_fsm.c
===================================================================
@@ -318,7 +318,7 @@ ccw_device_recog_done(struct ccw_device 
 	switch (state) {
 	case DEV_STATE_NOT_OPER:
 		CIO_DEBUG(KERN_WARNING, 2,
-			  "cio: SenseID : unknown device %04x on subchannel "
+			  "SenseID : unknown device %04x on subchannel "
 			  "0.%x.%04x\n", cdev->private->dev_id.devno,
 			  sch->schid.ssid, sch->schid.sch_no);
 		break;

@@ -344,7 +344,7 @@ ccw_device_recog_done(struct ccw_device 
 		}
 		/* Issue device info message. */
 		CIO_DEBUG(KERN_INFO, 2,
-			  "cio: SenseID : device 0.%x.%04x reports: "
+			  "SenseID : device 0.%x.%04x reports: "
 			  "CU  Type/Mod = %04X/%02X, Dev Type/Mod = "
 			  "%04X/%02X\n",
 			  cdev->private->dev_id.ssid,

@@ -354,7 +354,7 @@ ccw_device_recog_done(struct ccw_device 
 		break;
 	case DEV_STATE_BOXED:
 		CIO_DEBUG(KERN_WARNING, 2,
-			  "cio: SenseID : boxed device %04x on subchannel "
+			  "SenseID : boxed device %04x on subchannel "
 			  "0.%x.%04x\n", cdev->private->dev_id.devno,
 			  sch->schid.ssid, sch->schid.sch_no);
 		break;

@@ -439,7 +439,7 @@ ccw_device_done(struct ccw_device *cdev,
 
 	if (state == DEV_STATE_BOXED)
 		CIO_DEBUG(KERN_WARNING, 2,
-			  "cio: Boxed device %04x on subchannel %04x\n",
+			  "Boxed device %04x on subchannel %04x\n",
 			  cdev->private->dev_id.devno, sch->schid.sch_no);
 
 	if (cdev->private->flags.donotify) {

Index: quilt-2.6/drivers/s390/cio/cio.c
===================================================================
@@ -28,6 +28,7 @@
 #include "css.h"
 #include "chsc.h"
 #include "ioasm.h"
+#include "io_sch.h"
 #include "blacklist.h"
 #include "cio_debug.h"
 #include "chp.h"

@@ -182,33 +183,35 @@ cio_start_key (struct subchannel *sch,	/
 {
 	char dbf_txt[15];
 	int ccode;
+	struct orb *orb;
 
-	CIO_TRACE_EVENT (4, "stIO");
-	CIO_TRACE_EVENT (4, sch->dev.bus_id);
+	CIO_TRACE_EVENT(4, "stIO");
+	CIO_TRACE_EVENT(4, sch->dev.bus_id);
 
+	orb = &to_io_private(sch)->orb;
 	/* sch is always under 2G. */
-	sch->orb.intparm = (__u32)(unsigned long)sch;
-	sch->orb.fmt = 1;
+	orb->intparm = (u32)(addr_t)sch;
+	orb->fmt = 1;
 
-	sch->orb.pfch = sch->options.prefetch == 0;
-	sch->orb.spnd = sch->options.suspend;
-	sch->orb.ssic = sch->options.suspend && sch->options.inter;
-	sch->orb.lpm = (lpm != 0) ? lpm : sch->lpm;
+	orb->pfch = sch->options.prefetch == 0;
+	orb->spnd = sch->options.suspend;
+	orb->ssic = sch->options.suspend && sch->options.inter;
+	orb->lpm = (lpm != 0) ? lpm : sch->lpm;
 #ifdef CONFIG_64BIT
 	/*
 	 * for 64 bit we always support 64 bit IDAWs with 4k page size only
 	 */
-	sch->orb.c64 = 1;
-	sch->orb.i2k = 0;
+	orb->c64 = 1;
+	orb->i2k = 0;
 #endif
-	sch->orb.key = key >> 4;
+	orb->key = key >> 4;
 	/* issue "Start Subchannel" */
-	sch->orb.cpa = (__u32) __pa (cpa);
-	ccode = ssch (sch->schid, &sch->orb);
+	orb->cpa = (__u32) __pa(cpa);
+	ccode = ssch(sch->schid, orb);
 
 	/* process condition code */
-	sprintf (dbf_txt, "ccode:%d", ccode);
-	CIO_TRACE_EVENT (4, dbf_txt);
+	sprintf(dbf_txt, "ccode:%d", ccode);
+	CIO_TRACE_EVENT(4, dbf_txt);
 
 	switch (ccode) {
 	case 0:

@@ -423,7 +426,7 @@ cio_enable_subchannel (struct subchannel
 	for (retry = 5, ret = 0; retry > 0; retry--) {
 		sch->schib.pmcw.ena = 1;
 		sch->schib.pmcw.isc = isc;
-		sch->schib.pmcw.intparm = (__u32)(unsigned long)sch;
+		sch->schib.pmcw.intparm = (u32)(addr_t)sch;
 		ret = cio_modify(sch);
 		if (ret == -ENODEV)
 			break;

@@ -696,8 +699,14 @@ do_IRQ (struct pt_regs *regs)
 
 #ifdef CONFIG_CCW_CONSOLE
 static struct subchannel console_subchannel;
+static struct io_subchannel_private console_priv;
 static int console_subchannel_in_use;
 
+void *cio_get_console_priv(void)
+{
+	return &console_priv;
+}
+
 /*
  * busy wait for the next interrupt on the console
  */

@@ -802,7 +811,7 @@ cio_probe_console(void)
 	ctl_set_bit(6, 24);
 	console_subchannel.schib.pmcw.isc = 7;
 	console_subchannel.schib.pmcw.intparm =
-		(__u32)(unsigned long)&console_subchannel;
+		(u32)(addr_t)&console_subchannel;
 	ret = cio_modify(&console_subchannel);
 	if (ret) {
 		console_subchannel_in_use = 0;

114 lines not on this page · raw message

Index: quilt-2.6/drivers/s390/cio/css.c
===================================================================
@@ -77,7 +77,7 @@ css_alloc_subchannel(struct subchannel_i
 	 * This is fine even on 64bit since the subchannel is always located
 	 * under 2G.
 	 */
-	sch->schib.pmcw.intparm = (__u32)(unsigned long)sch;
+	sch->schib.pmcw.intparm = (u32)(addr_t)sch;
 	ret = cio_modify(sch);
 	if (ret) {
 		kfree(sch->lock);

64 lines not on this page · raw message

Index: quilt-2.6/drivers/s390/cio/device.c
===================================================================
@@ -28,6 +28,7 @@
 #include "css.h"
 #include "device.h"
 #include "ioasm.h"
+#include "io_sch.h"
 
 /******************* bus type handling ***********************/
 

@@ -1159,10 +1160,16 @@ io_subchannel_probe (struct subchannel *
 		queue_work(slow_path_wq, &cdev->private->kick_work);
 		return 0;
 	}
+	/* Allocate I/O subchannel private data. */
+	sch->private = kzalloc(sizeof(struct io_subchannel_private),
+			       GFP_KERNEL | GFP_DMA);
+	if (!sch->private)
+		return -ENOMEM;
 	cdev = io_subchannel_create_ccwdev(sch);
-	if (IS_ERR(cdev))
+	if (IS_ERR(cdev)) {
+		kfree(sch->private);
 		return PTR_ERR(cdev);
-
+	}
 	rc = io_subchannel_recog(cdev, sch);
 	if (rc) {
 		spin_lock_irqsave(sch->lock, flags);

@@ -1170,6 +1177,7 @@ io_subchannel_probe (struct subchannel *
 		spin_unlock_irqrestore(sch->lock, flags);
 		if (cdev->dev.release)
 			cdev->dev.release(&cdev->dev);
+		kfree(sch->private);
 	}
 
 	return rc;

@@ -1191,6 +1199,7 @@ io_subchannel_remove (struct subchannel 
 	spin_unlock_irqrestore(cdev->ccwlock, flags);
 	ccw_device_unregister(cdev);
 	put_device(&cdev->dev);
+	kfree(sch->private);
 	return 0;
 }
 

@@ -1279,6 +1288,9 @@ ccw_device_console_enable (struct ccw_de
 {
 	int rc;
 
+	/* Attach subchannel private data. */
+	sch->private = cio_get_console_priv();
+	memset(sch->private, 0, sizeof(struct io_subchannel_private));
 	/* Initialize the ccw_device structure. */
 	cdev->dev.parent= &sch->dev;
 	rc = io_subchannel_recog(cdev, sch);

Index: quilt-2.6/drivers/s390/cio/device_fsm.c
===================================================================
@@ -96,29 +96,32 @@ static void ccw_timeout_log(struct ccw_d
 {
 	struct schib schib;
 	struct subchannel *sch;
+	struct io_subchannel_private *private;
 	int cc;
 
 	sch = to_subchannel(cdev->dev.parent);
+	private = to_io_private(sch);
 	cc = stsch(sch->schid, &schib);
 
 	printk(KERN_WARNING "cio: ccw device timeout occurred at %llx, "
 	       "device information:\n", get_clock());
 	printk(KERN_WARNING "cio: orb:\n");
 	print_hex_dump(KERN_WARNING, "cio:  ", DUMP_PREFIX_NONE, 16, 1,
-		       &sch->orb, sizeof(sch->orb), 0);
+		       &private->orb, sizeof(private->orb), 0);
 	printk(KERN_WARNING "cio: ccw device bus id: %s\n", cdev->dev.bus_id);
 	printk(KERN_WARNING "cio: subchannel bus id: %s\n", sch->dev.bus_id);
 	printk(KERN_WARNING "cio: subchannel lpm: %02x, opm: %02x, "
 	       "vpm: %02x\n", sch->lpm, sch->opm, sch->vpm);
 
-	if ((void *)(addr_t)sch->orb.cpa == &sch->sense_ccw ||
-	    (void *)(addr_t)sch->orb.cpa == cdev->private->iccws)
+	if ((void *)(addr_t)private->orb.cpa == &private->sense_ccw ||
+	    (void *)(addr_t)private->orb.cpa == cdev->private->iccws)
 		printk(KERN_WARNING "cio: last channel program (intern):\n");
 	else
 		printk(KERN_WARNING "cio: last channel program:\n");
 
 	print_hex_dump(KERN_WARNING, "cio:  ", DUMP_PREFIX_NONE, 16, 1,
-		       (void *)(addr_t)sch->orb.cpa, sizeof(struct ccw1), 0);
+		       (void *)(addr_t)private->orb.cpa,
+		       sizeof(struct ccw1), 0);
 	printk(KERN_WARNING "cio: ccw device state: %d\n",
 	       cdev->private->state);
 	printk(KERN_WARNING "cio: store subchannel returned: cc=%d\n", cc);

@@ -1078,7 +1081,7 @@ device_trigger_reprobe(struct subchannel
 	sch->schib.pmcw.ena = 0;
 	if ((sch->lpm & (sch->lpm - 1)) != 0)
 		sch->schib.pmcw.mp = 1;
-	sch->schib.pmcw.intparm = (__u32)(unsigned long)sch;
+	sch->schib.pmcw.intparm = (u32)(addr_t)sch;
 	/* We should also udate ssd info, but this has to wait. */
 	/* Check if this is another device which appeared on the same sch. */
 	if (sch->schib.pmcw.dev != cdev->private->dev_id.devno) {

Index: quilt-2.6/drivers/s390/cio/device.h
===================================================================
@@ -5,6 +5,8 @@
 #include <asm/atomic.h>
 #include <linux/wait.h>
 
+#include "io_sch.h"
+
 /*
  * states of the device statemachine
  */

Index: quilt-2.6/drivers/s390/cio/device_id.c
===================================================================
@@ -24,6 +24,7 @@
 #include "css.h"
 #include "device.h"
 #include "ioasm.h"
+#include "io_sch.h"
 
 /*
  * Input :

@@ -219,11 +220,13 @@ ccw_device_check_sense_id(struct ccw_dev
 		return -EAGAIN;
 	}
 	if (irb->scsw.cc == 3) {
-		if ((sch->orb.lpm &
-		     sch->schib.pmcw.pim & sch->schib.pmcw.pam) != 0)
+		u8 lpm;
+
+		lpm = to_io_private(sch)->orb.lpm;
+		if ((lpm & sch->schib.pmcw.pim & sch->schib.pmcw.pam) != 0)
 			CIO_MSG_EVENT(2, "SenseID : path %02X for device %04x "
 				      "on subchannel 0.%x.%04x is "
-				      "'not operational'\n", sch->orb.lpm,
+				      "'not operational'\n", lpm,
 				      cdev->private->dev_id.devno,
 				      sch->schid.ssid, sch->schid.sch_no);
 		return -EACCES;

Index: quilt-2.6/drivers/s390/cio/device_pgid.c
===================================================================
@@ -22,6 +22,7 @@
 #include "css.h"
 #include "device.h"
 #include "ioasm.h"
+#include "io_sch.h"
 
 /*
  * Helper function called from interrupt context to decide whether an

@@ -155,10 +156,13 @@ __ccw_device_check_sense_pgid(struct ccw
 		return -EAGAIN;
 	}
 	if (irb->scsw.cc == 3) {
+		u8 lpm;
+
+		lpm = to_io_private(sch)->orb.lpm;
 		CIO_MSG_EVENT(2, "SNID - Device %04x on Subchannel 0.%x.%04x,"
 			      " lpm %02X, became 'not operational'\n",
 			      cdev->private->dev_id.devno, sch->schid.ssid,
-			      sch->schid.sch_no, sch->orb.lpm);
+			      sch->schid.sch_no, lpm);
 		return -EACCES;
 	}
 	i = 8 - ffs(cdev->private->imask);

Index: quilt-2.6/drivers/s390/cio/device_status.c
===================================================================
@@ -20,6 +20,7 @@
 #include "css.h"
 #include "device.h"
 #include "ioasm.h"
+#include "io_sch.h"
 
 /*
  * Check for any kind of channel or interface control check but don't

@@ -310,6 +311,7 @@ int
 ccw_device_do_sense(struct ccw_device *cdev, struct irb *irb)
 {
 	struct subchannel *sch;
+	struct ccw1 *sense_ccw;
 
 	sch = to_subchannel(cdev->dev.parent);
 

@@ -326,15 +328,16 @@ ccw_device_do_sense(struct ccw_device *c
 	/*
 	 * We have ending status but no sense information. Do a basic sense.
 	 */
-	sch->sense_ccw.cmd_code = CCW_CMD_BASIC_SENSE;
-	sch->sense_ccw.cda = (__u32) __pa(cdev->private->irb.ecw);
-	sch->sense_ccw.count = SENSE_MAX_COUNT;
-	sch->sense_ccw.flags = CCW_FLAG_SLI;
+	sense_ccw = &to_io_private(sch)->sense_ccw;
+	sense_ccw->cmd_code = CCW_CMD_BASIC_SENSE;
+	sense_ccw->cda = (__u32) __pa(cdev->private->irb.ecw);
+	sense_ccw->count = SENSE_MAX_COUNT;
+	sense_ccw->flags = CCW_FLAG_SLI;
 
 	/* Reset internal retry indication. */
 	cdev->private->flags.intretry = 0;
 
-	return cio_start (sch, &sch->sense_ccw, 0xff);
+	return cio_start(sch, sense_ccw, 0xff);
 }
 
 /*

72 lines not on this page · raw message

161 lines not on this page · raw message

202 lines not on this page · raw message

Index: quilt-2.6/drivers/s390/cio/airq.h
===================================================================
@@ -1,10 +0,0 @@
-#ifndef S390_AINTERRUPT_H
-#define S390_AINTERRUPT_H
-
-typedef	int (*adapter_int_handler_t)(void);
-
-extern int s390_register_adapter_interrupt(adapter_int_handler_t handler);
-extern int s390_unregister_adapter_interrupt(adapter_int_handler_t handler);
-extern void do_adapter_IO (void);
-
-#endif

Index: quilt-2.6/drivers/s390/cio/cio.c
===================================================================
@@ -23,7 +23,7 @@
 #include <asm/reset.h>
 #include <asm/ipl.h>
 #include <asm/chpid.h>
-#include "airq.h"
+#include <asm/airq.h>
 #include "cio.h"
 #include "css.h"
 #include "chsc.h"

Index: quilt-2.6/drivers/s390/cio/cio.h
===================================================================
@@ -99,6 +99,7 @@ extern int cio_get_options (struct subch
 extern int cio_modify (struct subchannel *);
 
 int cio_create_sch_lock(struct subchannel *);
+void do_adapter_IO(void);
 
 /* Use with care. */
 #ifdef CONFIG_CCW_CONSOLE

Index: quilt-2.6/drivers/s390/cio/qdio.c
===================================================================
@@ -48,11 +48,11 @@
 #include <asm/debug.h>
 #include <asm/s390_rdev.h>
 #include <asm/qdio.h>
+#include <asm/airq.h>
 
 #include "cio.h"
 #include "css.h"
 #include "device.h"
-#include "airq.h"
 #include "qdio.h"
 #include "ioasm.h"
 #include "chsc.h"

@@ -96,7 +96,7 @@ static debug_info_t *qdio_dbf_slsb_in;
 static volatile struct qdio_q *tiq_list=NULL; /* volatile as it could change
 						 during a while loop */
 static DEFINE_SPINLOCK(ttiq_list_lock);
-static int register_thinint_result;
+static void *tiqdio_ind;
 static void tiqdio_tl(unsigned long);
 static DECLARE_TASKLET(tiqdio_tasklet,tiqdio_tl,0);
 

@@ -399,7 +399,7 @@ qdio_get_indicator(void)
 {
 	int i;
 
-	for (i=1;i<INDICATORS_PER_CACHELINE;i++)
+	for (i = 0; i < INDICATORS_PER_CACHELINE; i++)
 		if (!indicator_used[i]) {
 			indicator_used[i]=1;
 			return indicators+i;

@@ -1911,8 +1911,7 @@ qdio_fill_thresholds(struct qdio_irq *ir
 	}
 }
 
-static int
-tiqdio_thinint_handler(void)
+static void tiqdio_thinint_handler(void *ind, void *drv_data)
 {
 	QDIO_DBF_TEXT4(0,trace,"thin_int");
 

@@ -1925,7 +1924,6 @@ tiqdio_thinint_handler(void)
 		tiqdio_clear_global_summary();
 
 	tiqdio_inbound_checks();
-	return 0;
 }
 
 static void

@@ -2445,7 +2443,7 @@ tiqdio_set_subchannel_ind(struct qdio_ir
 		real_addr_dev_st_chg_ind=0;
 	} else {
 		real_addr_local_summary_bit=
-			virt_to_phys((volatile void *)indicators);
+			virt_to_phys((volatile void *)tiqdio_ind);
 		real_addr_dev_st_chg_ind=
 			virt_to_phys((volatile void *)irq_ptr->dev_st_chg_ind);
 	}

@@ -3740,23 +3738,25 @@ static void
 tiqdio_register_thinints(void)
 {
 	char dbf_text[20];
-	register_thinint_result=
-		s390_register_adapter_interrupt(&tiqdio_thinint_handler);
-	if (register_thinint_result) {
-		sprintf(dbf_text,"regthn%x",(register_thinint_result&0xff));
+
+	tiqdio_ind =
+		s390_register_adapter_interrupt(&tiqdio_thinint_handler, NULL);
+	if (IS_ERR(tiqdio_ind)) {
+		sprintf(dbf_text, "regthn%lx", PTR_ERR(tiqdio_ind));
 		QDIO_DBF_TEXT0(0,setup,dbf_text);
 		QDIO_PRINT_ERR("failed to register adapter handler " \
-			       "(rc=%i).\nAdapter interrupts might " \
+			       "(rc=%li).\nAdapter interrupts might " \
 			       "not work. Continuing.\n",
-			       register_thinint_result);
+			       PTR_ERR(tiqdio_ind));
+		tiqdio_ind = NULL;
 	}
 }
 
 static void
 tiqdio_unregister_thinints(void)
 {
-	if (!register_thinint_result)
-		s390_unregister_adapter_interrupt(&tiqdio_thinint_handler);
+	if (tiqdio_ind)
+		s390_unregister_adapter_interrupt(tiqdio_ind);
 }
 
 static int

@@ -3768,8 +3768,8 @@ qdio_get_qdio_memory(void)
 	for (i=1;i<INDICATORS_PER_CACHELINE;i++)
 		indicator_used[i]=0;
 	indicators = kzalloc(sizeof(__u32)*(INDICATORS_PER_CACHELINE),
-				   GFP_KERNEL);
-       	if (!indicators)
+			     GFP_KERNEL);
+	if (!indicators)
 		return -ENOMEM;
 	return 0;
 }

@@ -3780,7 +3780,6 @@ qdio_release_qdio_memory(void)
 	kfree(indicators);
 }
 
-
 static void
 qdio_unregister_dbf_views(void)
 {

Index: quilt-2.6/include/asm-s390/airq.h
===================================================================
@@ -0,0 +1,19 @@
+/*
+ *  include/asm-s390/airq.h
+ *
+ *    Copyright IBM Corp. 2002,2007
+ *    Author(s): Ingo Adlung <[email protected]>
+ *		 Cornelia Huck <[email protected]>
+ *		 Arnd Bergmann <[email protected]>
+ *		 Peter Oberparleiter <[email protected]>
+ */
+
+#ifndef _ASM_S390_AIRQ_H
+#define _ASM_S390_AIRQ_H
+
+typedef void (*adapter_int_handler_t)(void *, void *);
+
+void *s390_register_adapter_interrupt(adapter_int_handler_t, void *);
+void s390_unregister_adapter_interrupt(void *);
+
+#endif /* _ASM_S390_AIRQ_H */

Index: quilt-2.6/drivers/s390/cio/chsc.c
===================================================================
@@ -89,7 +89,8 @@ int chsc_get_ssd_info(struct subchannel_
 	/* Copy data */
 	ret = 0;
 	memset(ssd, 0, sizeof(struct chsc_ssd_info));
-	if ((ssd_area->st != 0) && (ssd_area->st != 2))
+	if ((ssd_area->st != SUBCHANNEL_TYPE_IO) &&
+	    (ssd_area->st != SUBCHANNEL_TYPE_MSG))
 		goto out_free;
 	ssd->path_mask = ssd_area->path_mask;
 	ssd->fla_valid_mask = ssd_area->fla_valid_mask;

@@ -158,7 +159,7 @@ s390_subchannel_remove_chpid(struct devi
 	spin_lock_irq(sch->lock);
 
 	stsch(sch->schid, &schib);
-	if (!schib.pmcw.dnv)
+	if (!css_sch_is_valid(&schib))
 		goto out_unreg;
 	memcpy(&sch->schib, &schib, sizeof(struct schib));
 	/* Check for single path devices. */

Index: quilt-2.6/drivers/s390/cio/cio.c
===================================================================
@@ -406,8 +406,8 @@ cio_modify (struct subchannel *sch)
 /*
  * Enable subchannel.
  */
-int
-cio_enable_subchannel (struct subchannel *sch, unsigned int isc)
+int cio_enable_subchannel(struct subchannel *sch, unsigned int isc,
+			  u32 intparm)
 {
 	char dbf_txt[15];
 	int ccode;

@@ -426,7 +426,7 @@ cio_enable_subchannel (struct subchannel
 	for (retry = 5, ret = 0; retry > 0; retry--) {
 		sch->schib.pmcw.ena = 1;
 		sch->schib.pmcw.isc = isc;
-		sch->schib.pmcw.intparm = (u32)(addr_t)sch;
+		sch->schib.pmcw.intparm = intparm;
 		ret = cio_modify(sch);
 		if (ret == -ENODEV)
 			break;

@@ -577,11 +577,8 @@ cio_validate_subchannel (struct subchann
 	}
 
 	/* Initialization for io subchannels. */
-	if (!sch->schib.pmcw.dnv) {
-		/* io subchannel but device number is invalid. */
-		err = -ENODEV;
-		goto out;
-	}
+	if (!css_sch_is_valid(&sch->schib))
+		return -ENODEV;
 	/* Devno is valid. */
 	if (is_blacklisted (sch->schid.ssid, sch->schib.pmcw.dev)) {
 		/*

@@ -745,9 +742,9 @@ cio_test_for_console(struct subchannel_i
 {
 	if (stsch_err(schid, &console_subchannel.schib) != 0)
 		return -ENXIO;
-	if (console_subchannel.schib.pmcw.dnv &&
-	    console_subchannel.schib.pmcw.dev ==
-	    console_devno) {
+	if ((console_subchannel.schib.pmcw.st == SUBCHANNEL_TYPE_IO) &&
+	    console_subchannel.schib.pmcw.dnv &&
+	    (console_subchannel.schib.pmcw.dev == console_devno)) {
 		console_irq = schid.sch_no;
 		return 1; /* found */
 	}

@@ -765,6 +762,7 @@ cio_get_console_sch_no(void)
 		/* VM provided us with the irq number of the console. */
 		schid.sch_no = console_irq;
 		if (stsch(schid, &console_subchannel.schib) != 0 ||
+		    (console_subchannel.schib.pmcw.st != SUBCHANNEL_TYPE_IO) ||
 		    !console_subchannel.schib.pmcw.dnv)
 			return -1;
 		console_devno = console_subchannel.schib.pmcw.dev;

@@ -1029,7 +1027,7 @@ static int __reipl_subchannel_match(stru
 
 	if (stsch_reset(schid, &schib))
 		return -ENXIO;
-	if (schib.pmcw.dnv &&
+	if ((schib.pmcw.st == SUBCHANNEL_TYPE_IO) && schib.pmcw.dnv &&
 	    (schib.pmcw.dev == match_id->devid.devno) &&
 	    (schid.ssid == match_id->devid.ssid)) {
 		match_id->schid = schid;

@@ -1075,6 +1073,8 @@ int __init cio_get_iplinfo(struct cio_ip
 		return -ENODEV;
 	if (stsch(schid, &schib))
 		return -ENODEV;
+	if (schib.pmcw.st != SUBCHANNEL_TYPE_IO)
+		return -ENODEV;
 	if (!schib.pmcw.dnv)
 		return -ENODEV;
 	iplinfo->devno = schib.pmcw.dev;

Index: quilt-2.6/drivers/s390/cio/cio.h
===================================================================
@@ -60,7 +60,7 @@ struct subchannel {
 	enum {
 		SUBCHANNEL_TYPE_IO = 0,
 		SUBCHANNEL_TYPE_CHSC = 1,
-		SUBCHANNEL_TYPE_MESSAGE = 2,
+		SUBCHANNEL_TYPE_MSG = 2,
 		SUBCHANNEL_TYPE_ADM = 3,
 	} st;			/* subchannel type */
 

@@ -85,7 +85,7 @@ struct subchannel {
 #define to_subchannel(n) container_of(n, struct subchannel, dev)
 
 extern int cio_validate_subchannel (struct subchannel *, struct subchannel_id);
-extern int cio_enable_subchannel (struct subchannel *, unsigned int);
+extern int cio_enable_subchannel(struct subchannel *, unsigned int, u32);
 extern int cio_disable_subchannel (struct subchannel *);
 extern int cio_cancel (struct subchannel *);
 extern int cio_clear (struct subchannel *);

Index: quilt-2.6/drivers/s390/cio/css.c
===================================================================
@@ -237,11 +237,25 @@ get_subchannel_by_schid(struct subchanne
 	return dev ? to_subchannel(dev) : NULL;
 }
 
+/**
+ * css_sch_is_valid() - check if a subchannel is valid
+ * @schib: subchannel information block for the subchannel
+ */
+int css_sch_is_valid(struct schib *schib)
+{
+	if ((schib->pmcw.st == SUBCHANNEL_TYPE_IO) && !schib->pmcw.dnv)
+		return 0;
+	return 1;
+}
+EXPORT_SYMBOL_GPL(css_sch_is_valid);
+
 static int css_get_subchannel_status(struct subchannel *sch)
 {
 	struct schib schib;
 
-	if (stsch(sch->schid, &schib) || !schib.pmcw.dnv)
+	if (stsch(sch->schid, &schib))
+		return CIO_GONE;
+	if (!css_sch_is_valid(&schib))
 		return CIO_GONE;
 	if (sch->schib.pmcw.dnv && (schib.pmcw.dev != sch->schib.pmcw.dev))
 		return CIO_REVALIDATE;

@@ -349,7 +363,7 @@ static int css_evaluate_new_subchannel(s
 		/* Will be done on the slow path. */
 		return -EAGAIN;
 	}
-	if (stsch_err(schid, &schib) || !schib.pmcw.dnv) {
+	if (stsch_err(schid, &schib) || !css_sch_is_valid(&schib)) {
 		/* Unusable - ignore. */
 		return 0;
 	}

Index: quilt-2.6/drivers/s390/cio/css.h
===================================================================
@@ -136,6 +136,8 @@ void css_schedule_eval(struct subchannel
 void css_schedule_eval_all(void);
 
 int sch_is_pseudo_sch(struct subchannel *);
+struct schib;
+int css_sch_is_valid(struct schib *);
 
 extern struct workqueue_struct *slow_path_wq;
 

Index: quilt-2.6/drivers/s390/cio/device_fsm.c
===================================================================
@@ -553,7 +553,8 @@ ccw_device_recognition(struct ccw_device
 	    (cdev->private->state != DEV_STATE_BOXED))
 		return -EINVAL;
 	sch = to_subchannel(cdev->dev.parent);
-	ret = cio_enable_subchannel(sch, sch->schib.pmcw.isc);
+	ret = cio_enable_subchannel(sch, sch->schib.pmcw.isc,
+				    (u32)(addr_t)sch);
 	if (ret != 0)
 		/* Couldn't enable the subchannel for i/o. Sick device. */
 		return ret;

@@ -663,7 +664,8 @@ ccw_device_online(struct ccw_device *cde
 	sch = to_subchannel(cdev->dev.parent);
 	if (css_init_done && !get_device(&cdev->dev))
 		return -ENODEV;
-	ret = cio_enable_subchannel(sch, sch->schib.pmcw.isc);
+	ret = cio_enable_subchannel(sch, sch->schib.pmcw.isc,
+				    (u32)(addr_t)sch);
 	if (ret != 0) {
 		/* Couldn't enable the subchannel for i/o. Sick device. */
 		if (ret == -ENODEV)

@@ -1043,7 +1045,8 @@ ccw_device_start_id(struct ccw_device *c
 	struct subchannel *sch;
 
 	sch = to_subchannel(cdev->dev.parent);
-	if (cio_enable_subchannel(sch, sch->schib.pmcw.isc) != 0)
+	if (cio_enable_subchannel(sch, sch->schib.pmcw.isc,
+				  (u32)(addr_t)sch) != 0)
 		/* Couldn't enable the subchannel for i/o. Sick device. */
 		return;
 

Index: quilt-2.6/drivers/s390/cio/device_ops.c
===================================================================
@@ -501,7 +501,7 @@ ccw_device_stlck(struct ccw_device *cdev
 		return -ENOMEM;
 	}
 	spin_lock_irqsave(sch->lock, flags);
-	ret = cio_enable_subchannel(sch, 3);
+	ret = cio_enable_subchannel(sch, 3, (u32)(addr_t)sch);
 	if (ret)
 		goto out_unlock;
 	/*

Index: quilt-2.6/drivers/s390/cio/ccwgroup.c
===================================================================
@@ -111,7 +111,7 @@ ccwgroup_release (struct device *dev)
 	gdev = to_ccwgroupdev(dev);
 
 	for (i = 0; i < gdev->count; i++) {
-		gdev->cdev[i]->dev.driver_data = NULL;
+		dev_set_drvdata(&gdev->cdev[i]->dev, NULL);
 		put_device(&gdev->cdev[i]->dev);
 	}
 	kfree(gdev);

@@ -196,11 +196,11 @@ int ccwgroup_create(struct device *root,
 			goto error;
 		}
 		/* Don't allow a device to belong to more than one group. */
-		if (gdev->cdev[i]->dev.driver_data) {
+		if (dev_get_drvdata(&gdev->cdev[i]->dev)) {
 			rc = -EINVAL;
 			goto error;
 		}
-		gdev->cdev[i]->dev.driver_data = gdev;
+		dev_set_drvdata(&gdev->cdev[i]->dev, gdev);
 	}
 
 	gdev->creator_id = creator_id;

@@ -234,8 +234,8 @@ int ccwgroup_create(struct device *root,
 error:
 	for (i = 0; i < argc; i++)
 		if (gdev->cdev[i]) {
-			if (gdev->cdev[i]->dev.driver_data == gdev)
-				gdev->cdev[i]->dev.driver_data = NULL;
+			if (dev_get_drvdata(&gdev->cdev[i]->dev) == gdev)
+				dev_set_drvdata(&gdev->cdev[i]->dev, NULL);
 			put_device(&gdev->cdev[i]->dev);
 		}
 	mutex_unlock(&gdev->reg_mutex);

@@ -463,8 +463,8 @@ __ccwgroup_get_gdev_by_cdev(struct ccw_d
 {
 	struct ccwgroup_device *gdev;
 
-	if (cdev->dev.driver_data) {
-		gdev = (struct ccwgroup_device *)cdev->dev.driver_data;
+	gdev = dev_get_drvdata(&cdev->dev);
+	if (gdev) {
 		if (get_device(&gdev->dev)) {
 			mutex_lock(&gdev->reg_mutex);
 			if (device_is_registered(&gdev->dev))

Index: quilt-2.6/drivers/s390/cio/device.c
===================================================================
@@ -773,7 +773,7 @@ static void sch_attach_device(struct sub
 {
 	css_update_ssd_info(sch);
 	spin_lock_irq(sch->lock);
-	sch->dev.driver_data = cdev;
+	sch_set_cdev(sch, cdev);
 	cdev->private->schid = sch->schid;
 	cdev->ccwlock = sch->lock;
 	device_trigger_reprobe(sch);

@@ -795,7 +795,7 @@ static void sch_attach_disconnected_devi
 		put_device(&other_sch->dev);
 		return;
 	}
-	other_sch->dev.driver_data = NULL;
+	sch_set_cdev(other_sch, NULL);
 	/* No need to keep a subchannel without ccw device around. */
 	css_sch_device_unregister(other_sch);
 	put_device(&other_sch->dev);

@@ -831,12 +831,12 @@ static void sch_create_and_recog_new_dev
 		return;
 	}
 	spin_lock_irq(sch->lock);
-	sch->dev.driver_data = cdev;
+	sch_set_cdev(sch, cdev);
 	spin_unlock_irq(sch->lock);
 	/* Start recognition for the new ccw device. */
 	if (io_subchannel_recog(cdev, sch)) {
 		spin_lock_irq(sch->lock);
-		sch->dev.driver_data = NULL;
+		sch_set_cdev(sch, NULL);
 		spin_unlock_irq(sch->lock);
 		if (cdev->dev.release)
 			cdev->dev.release(&cdev->dev);

@@ -940,7 +940,7 @@ io_subchannel_register(struct work_struc
 			      cdev->private->dev_id.devno, ret);
 		put_device(&cdev->dev);
 		spin_lock_irqsave(sch->lock, flags);
-		sch->dev.driver_data = NULL;
+		sch_set_cdev(sch, NULL);
 		spin_unlock_irqrestore(sch->lock, flags);
 		kfree (cdev->private);
 		kfree (cdev);

@@ -1022,7 +1022,7 @@ io_subchannel_recog(struct ccw_device *c
 	int rc;
 	struct ccw_device_private *priv;
 
-	sch->dev.driver_data = cdev;
+	sch_set_cdev(sch, cdev);
 	sch->driver = &io_subchannel_driver;
 	cdev->ccwlock = sch->lock;
 

@@ -1082,7 +1082,7 @@ static void ccw_device_move_to_sch(struc
 	}
 	if (former_parent) {
 		spin_lock_irq(former_parent->lock);
-		former_parent->dev.driver_data = NULL;
+		sch_set_cdev(former_parent, NULL);
 		spin_unlock_irq(former_parent->lock);
 		css_sch_device_unregister(former_parent);
 		/* Reset intparm to zeroes. */

@@ -1100,7 +1100,7 @@ static void io_subchannel_irq(struct sub
 {
 	struct ccw_device *cdev;
 
-	cdev = sch->dev.driver_data;
+	cdev = sch_get_cdev(sch);
 
 	CIO_TRACE_EVENT(3, "IRQ");
 	CIO_TRACE_EVENT(3, sch->dev.bus_id);

@@ -1116,13 +1116,13 @@ io_subchannel_probe (struct subchannel *
 	unsigned long flags;
 	struct ccw_dev_id dev_id;
 
-	if (sch->dev.driver_data) {
+	cdev = sch_get_cdev(sch);
+	if (cdev) {
 		/*
 		 * This subchannel already has an associated ccw_device.
 		 * Register it and exit. This happens for all early
 		 * device, e.g. the console.
 		 */
-		cdev = sch->dev.driver_data;
 		cdev->dev.groups = ccwdev_attr_groups;
 		device_initialize(&cdev->dev);
 		ccw_device_register(cdev);

@@ -1173,7 +1173,7 @@ io_subchannel_probe (struct subchannel *
 	rc = io_subchannel_recog(cdev, sch);
 	if (rc) {
 		spin_lock_irqsave(sch->lock, flags);
-		sch->dev.driver_data = NULL;
+		sch_set_cdev(sch, NULL);
 		spin_unlock_irqrestore(sch->lock, flags);
 		if (cdev->dev.release)
 			cdev->dev.release(&cdev->dev);

@@ -1189,12 +1189,12 @@ io_subchannel_remove (struct subchannel 
 	struct ccw_device *cdev;
 	unsigned long flags;
 
-	if (!sch->dev.driver_data)
+	cdev = sch_get_cdev(sch);
+	if (!cdev)
 		return 0;
-	cdev = sch->dev.driver_data;
 	/* Set ccw device to not operational and drop reference. */
 	spin_lock_irqsave(cdev->ccwlock, flags);
-	sch->dev.driver_data = NULL;
+	sch_set_cdev(sch, NULL);
 	cdev->private->state = DEV_STATE_NOT_OPER;
 	spin_unlock_irqrestore(cdev->ccwlock, flags);
 	ccw_device_unregister(cdev);

@@ -1207,7 +1207,7 @@ static int io_subchannel_notify(struct s
 {
 	struct ccw_device *cdev;
 
-	cdev = sch->dev.driver_data;
+	cdev = sch_get_cdev(sch);
 	if (!cdev)
 		return 0;
 	if (!cdev->drv)

@@ -1221,7 +1221,7 @@ static void io_subchannel_verify(struct 
 {
 	struct ccw_device *cdev;
 
-	cdev = sch->dev.driver_data;
+	cdev = sch_get_cdev(sch);
 	if (cdev)
 		dev_fsm_event(cdev, DEV_EVENT_VERIFY);
 }

@@ -1230,7 +1230,7 @@ static void io_subchannel_ioterm(struct 
 {
 	struct ccw_device *cdev;
 
-	cdev = sch->dev.driver_data;
+	cdev = sch_get_cdev(sch);
 	if (!cdev)
 		return;
 	/* Internal I/O will be retried by the interrupt handler. */

@@ -1248,7 +1248,7 @@ io_subchannel_shutdown(struct subchannel
 	struct ccw_device *cdev;
 	int ret;
 
-	cdev = sch->dev.driver_data;
+	cdev = sch_get_cdev(sch);
 
 	if (cio_is_console(sch->schid))
 		return;

Index: quilt-2.6/drivers/s390/cio/device_fsm.c
===================================================================
@@ -32,9 +32,9 @@ device_is_online(struct subchannel *sch)
 {
 	struct ccw_device *cdev;
 
-	if (!sch->dev.driver_data)
+	cdev = sch_get_cdev(sch);
+	if (!cdev)
 		return 0;
-	cdev = sch->dev.driver_data;
 	return (cdev->private->state == DEV_STATE_ONLINE);
 }
 

@@ -43,9 +43,9 @@ device_is_disconnected(struct subchannel
 {
 	struct ccw_device *cdev;
 
-	if (!sch->dev.driver_data)
+	cdev = sch_get_cdev(sch);
+	if (!cdev)
 		return 0;
-	cdev = sch->dev.driver_data;
 	return (cdev->private->state == DEV_STATE_DISCONNECTED ||
 		cdev->private->state == DEV_STATE_DISCONNECTED_SENSE_ID);
 }

@@ -55,9 +55,9 @@ device_set_disconnected(struct subchanne
 {
 	struct ccw_device *cdev;
 
-	if (!sch->dev.driver_data)
+	cdev = sch_get_cdev(sch);
+	if (!cdev)
 		return;
-	cdev = sch->dev.driver_data;
 	ccw_device_set_timeout(cdev, 0);
 	cdev->private->flags.fake_irb = 0;
 	cdev->private->state = DEV_STATE_DISCONNECTED;

@@ -67,7 +67,7 @@ void device_set_intretry(struct subchann
 {
 	struct ccw_device *cdev;
 
-	cdev = sch->dev.driver_data;
+	cdev = sch_get_cdev(sch);
 	if (!cdev)
 		return;
 	cdev->private->flags.intretry = 1;

@@ -77,7 +77,7 @@ int device_trigger_verify(struct subchan
 {
 	struct ccw_device *cdev;
 
-	cdev = sch->dev.driver_data;
+	cdev = sch_get_cdev(sch);
 	if (!cdev || !cdev->online)
 		return -EINVAL;
 	dev_fsm_event(cdev, DEV_EVENT_VERIFY);

@@ -175,9 +175,9 @@ device_kill_pending_timer(struct subchan
 {
 	struct ccw_device *cdev;
 
-	if (!sch->dev.driver_data)
+	cdev = sch_get_cdev(sch);
+	if (!cdev)
 		return;
-	cdev = sch->dev.driver_data;
 	ccw_device_set_timeout(cdev, 0);
 }
 

@@ -992,7 +992,7 @@ void device_kill_io(struct subchannel *s
 	int ret;
 	struct ccw_device *cdev;
 
-	cdev = sch->dev.driver_data;
+	cdev = sch_get_cdev(sch);
 	ret = ccw_device_cancel_halt_clear(cdev);
 	if (ret == -EBUSY) {
 		ccw_device_set_timeout(cdev, 3*HZ);

@@ -1062,9 +1062,9 @@ device_trigger_reprobe(struct subchannel
 {
 	struct ccw_device *cdev;
 
-	if (!sch->dev.driver_data)
+	cdev = sch_get_cdev(sch);
+	if (!cdev)
 		return;
-	cdev = sch->dev.driver_data;
 	if (cdev->private->state != DEV_STATE_DISCONNECTED)
 		return;
 

Index: quilt-2.6/drivers/s390/cio/io_sch.h
===================================================================
@@ -34,6 +34,8 @@ struct io_subchannel_private {
 } __attribute__ ((aligned(8)));
 
 #define to_io_private(n) ((struct io_subchannel_private *)n->private)
+#define sch_get_cdev(n) (dev_get_drvdata(&n->dev))
+#define sch_set_cdev(n, c) (dev_set_drvdata(&n->dev, c))
 
 #define MAX_CIWS 8
 

Index: quilt-2.6/drivers/s390/cio/ccwgroup.c
===================================================================
@@ -408,6 +408,7 @@ int ccwgroup_driver_register(struct ccwg
 	/* register our new driver with the core */
 	cdriver->driver.bus = &ccwgroup_bus_type;
 	cdriver->driver.name = cdriver->name;
+	cdriver->driver.owner = cdriver->owner;
 
 	return driver_register(&cdriver->driver);
 }

Index: quilt-2.6/drivers/s390/cio/css.c
===================================================================
@@ -862,6 +862,7 @@ int css_driver_register(struct css_drive
 {
 	cdrv->drv.name = cdrv->name;
 	cdrv->drv.bus = &css_bus_type;
+	cdrv->drv.owner = cdrv->owner;
 	return driver_register(&cdrv->drv);
 }
 EXPORT_SYMBOL_GPL(css_driver_register);

Index: quilt-2.6/drivers/s390/cio/css.h
===================================================================
@@ -65,6 +65,7 @@ struct pgid {
  */
 struct subchannel;
 struct css_driver {
+	struct module *owner;
 	unsigned int subchannel_type;
 	struct device_driver drv;
 	void (*irq)(struct subchannel *);

Index: quilt-2.6/drivers/s390/cio/device.c
===================================================================
@@ -125,6 +125,7 @@ static void io_subchannel_ioterm(struct 
 static void io_subchannel_shutdown(struct subchannel *);
 
 static struct css_driver io_subchannel_driver = {
+	.owner = THIS_MODULE,
 	.subchannel_type = SUBCHANNEL_TYPE_IO,
 	.name = "io_subchannel",
 	.irq = io_subchannel_irq,

@@ -1476,6 +1477,7 @@ int ccw_driver_register(struct ccw_drive
 
 	drv->bus = &ccw_bus_type;
 	drv->name = cdriver->name;
+	drv->owner = cdriver->owner;
 
 	return driver_register(drv);
 }

Index: quilt-2.6/drivers/s390/cio/chsc.c
===================================================================
@@ -136,17 +136,13 @@ static void terminate_internal_io(struct
 		sch->driver->termination(sch);
 }
 
-static int
-s390_subchannel_remove_chpid(struct device *dev, void *data)
+static int s390_subchannel_remove_chpid(struct subchannel *sch, void *data)
 {
 	int j;
 	int mask;
-	struct subchannel *sch;
-	struct chp_id *chpid;
+	struct chp_id *chpid = data;
 	struct schib schib;
 
-	sch = to_subchannel(dev);
-	chpid = data;
 	for (j = 0; j < 8; j++) {
 		mask = 0x80 >> j;
 		if ((sch->schib.pmcw.pim & mask) &&

@@ -202,12 +198,10 @@ void chsc_chp_offline(struct chp_id chpi
 
 	if (chp_get_status(chpid) <= 0)
 		return;
-	bus_for_each_dev(&css_bus_type, NULL, &chpid,
-			 s390_subchannel_remove_chpid);
+	for_each_subchannel_staged(s390_subchannel_remove_chpid, NULL, &chpid);
 }
 
-static int
-s390_process_res_acc_new_sch(struct subchannel_id schid)
+static int s390_process_res_acc_new_sch(struct subchannel_id schid, void *data)
 {
 	struct schib schib;
 	/*

@@ -253,18 +247,10 @@ static int get_res_chpid_mask(struct chs
 	return 0;
 }
 
-static int
-__s390_process_res_acc(struct subchannel_id schid, void *data)
+static int __s390_process_res_acc(struct subchannel *sch, void *data)
 {
 	int chp_mask, old_lpm;
-	struct res_acc_data *res_data;
-	struct subchannel *sch;
-
-	res_data = data;
-	sch = get_subchannel_by_schid(schid);
-	if (!sch)
-		/* Check if a subchannel is newly available. */
-		return s390_process_res_acc_new_sch(schid);
+	struct res_acc_data *res_data = data;
 
 	spin_lock_irq(sch->lock);
 	chp_mask = get_res_chpid_mask(&sch->ssd_info, res_data);

@@ -283,7 +269,7 @@ __s390_process_res_acc(struct subchannel
 		sch->driver->verify(sch);
 out:
 	spin_unlock_irq(sch->lock);
-	put_device(&sch->dev);
+
 	return 0;
 }
 

@@ -306,7 +292,8 @@ static void s390_process_res_acc (struct
 	 * The more information we have (info), the less scanning
 	 * will we have to do.
 	 */
-	for_each_subchannel(__s390_process_res_acc, res_data);
+	for_each_subchannel_staged(__s390_process_res_acc,
+				   s390_process_res_acc_new_sch, res_data);
 }
 
 static int

@@ -500,8 +487,7 @@ void chsc_process_crw(void)
 	} while (sei_area->flags & 0x80);
 }
 
-static int
-__chp_add_new_sch(struct subchannel_id schid)
+static int __chp_add_new_sch(struct subchannel_id schid, void *data)
 {
 	struct schib schib;
 

@@ -515,35 +501,27 @@ __chp_add_new_sch(struct subchannel_id s
 }
 
 
-static int
-__chp_add(struct subchannel_id schid, void *data)
+static int __chp_add(struct subchannel *sch, void *data)
 {
 	int i, mask;
-	struct chp_id *chpid;
-	struct subchannel *sch;
+	struct chp_id *chpid = data;
 
-	chpid = data;
-	sch = get_subchannel_by_schid(schid);
-	if (!sch)
-		/* Check if the subchannel is now available. */
-		return __chp_add_new_sch(schid);
 	spin_lock_irq(sch->lock);
 	for (i=0; i<8; i++) {
 		mask = 0x80 >> i;
 		if ((sch->schib.pmcw.pim & mask) &&
-		    (sch->schib.pmcw.chpid[i] == chpid->id)) {
-			if (stsch(sch->schid, &sch->schib) != 0) {
-				/* Endgame. */
-				spin_unlock_irq(sch->lock);
-				return -ENXIO;
-			}
+		    (sch->schib.pmcw.chpid[i] == chpid->id))
 			break;
-		}
 	}
 	if (i==8) {
 		spin_unlock_irq(sch->lock);
 		return 0;
 	}
+	if (stsch(sch->schid, &sch->schib)) {
+		spin_unlock_irq(sch->lock);
+		css_schedule_eval(sch->schid);
+		return 0;
+	}
 	sch->lpm = ((sch->schib.pmcw.pim &
 		     sch->schib.pmcw.pam &
 		     sch->schib.pmcw.pom)

@@ -553,7 +531,7 @@ __chp_add(struct subchannel_id schid, vo
 		sch->driver->verify(sch);
 
 	spin_unlock_irq(sch->lock);
-	put_device(&sch->dev);
+
 	return 0;
 }
 

@@ -565,7 +543,8 @@ void chsc_chp_online(struct chp_id chpid
 	CIO_TRACE_EVENT(2, dbf_txt);
 
 	if (chp_get_status(chpid) != 0)
-		for_each_subchannel(__chp_add, &chpid);
+		for_each_subchannel_staged(__chp_add, __chp_add_new_sch,
+					   &chpid);
 }
 
 static void __s390_subchannel_vary_chpid(struct subchannel *sch,

@@ -616,25 +595,17 @@ static void __s390_subchannel_vary_chpid
 	spin_unlock_irqrestore(sch->lock, flags);
 }
 
-static int s390_subchannel_vary_chpid_off(struct device *dev, void *data)
+static int s390_subchannel_vary_chpid_off(struct subchannel *sch, void *data)
 {
-	struct subchannel *sch;
-	struct chp_id *chpid;
-
-	sch = to_subchannel(dev);
-	chpid = data;
+	struct chp_id *chpid = data;
 
 	__s390_subchannel_vary_chpid(sch, *chpid, 0);
 	return 0;
 }
 
-static int s390_subchannel_vary_chpid_on(struct device *dev, void *data)
+static int s390_subchannel_vary_chpid_on(struct subchannel *sch, void *data)
 {
-	struct subchannel *sch;
-	struct chp_id *chpid;
-
-	sch = to_subchannel(dev);
-	chpid = data;
+	struct chp_id *chpid = data;
 
 	__s390_subchannel_vary_chpid(sch, *chpid, 1);
 	return 0;

@@ -644,13 +615,7 @@ static int
 __s390_vary_chpid_on(struct subchannel_id schid, void *data)
 {
 	struct schib schib;
-	struct subchannel *sch;
 
-	sch = get_subchannel_by_schid(schid);
-	if (sch) {
-		put_device(&sch->dev);
-		return 0;
-	}
 	if (stsch_err(schid, &schib))
 		/* We're through */
 		return -ENXIO;

@@ -670,12 +635,13 @@ int chsc_chp_vary(struct chp_id chpid, i
 	 * Redo PathVerification on the devices the chpid connects to
 	 */
 
-	bus_for_each_dev(&css_bus_type, NULL, &chpid, on ?
-			 s390_subchannel_vary_chpid_on :
-			 s390_subchannel_vary_chpid_off);
 	if (on)
-		/* Scan for new devices on varied on path. */
-		for_each_subchannel(__s390_vary_chpid_on, NULL);
+		for_each_subchannel_staged(s390_subchannel_vary_chpid_on,
+					   __s390_vary_chpid_on, &chpid);
+	else
+		for_each_subchannel_staged(s390_subchannel_vary_chpid_off,
+					   NULL, &chpid);
+
 	return 0;
 }
 

155 lines not on this page · raw message

Index: quilt-2.6/drivers/s390/cio/css.h
===================================================================
@@ -91,6 +91,9 @@ extern void css_driver_unregister(struct
 extern void css_sch_device_unregister(struct subchannel *);
 extern struct subchannel * get_subchannel_by_schid(struct subchannel_id);
 extern int css_init_done;
+int for_each_subchannel_staged(int (*fn_known)(struct subchannel *, void *),
+			       int (*fn_unknown)(struct subchannel_id,
+			       void *), void *data);
 extern int for_each_subchannel(int(*fn)(struct subchannel_id, void *), void *);
 extern void css_process_crw(int, int);
 extern void css_reiterate_subchannels(void);

Index: quilt-2.6/drivers/s390/cio/qdio.c
===================================================================
@@ -1408,8 +1408,7 @@ __tiqdio_inbound_processing(struct qdio_
 	if (q->hydra_gives_outbound_pcis) {
 		if (!q->siga_sync_done_on_thinints) {
 			SYNC_MEMORY_ALL;
-		} else if ((!q->siga_sync_done_on_outb_tis)&&
-			 (q->hydra_gives_outbound_pcis)) {
+		} else if (!q->siga_sync_done_on_outb_tis) {
 			SYNC_MEMORY_ALL_OUTB;
 		}
 	} else {

Index: quilt-2.6/drivers/s390/cio/qdio.h
===================================================================
@@ -57,7 +57,7 @@
 					    of the queue to 0 */
 
 #define QDIO_ESTABLISH_TIMEOUT (1*HZ)
-#define QDIO_ACTIVATE_TIMEOUT ((5*HZ)>>10)
+#define QDIO_ACTIVATE_TIMEOUT (5*HZ)
 #define QDIO_CLEANUP_CLEAR_TIMEOUT (20*HZ)
 #define QDIO_CLEANUP_HALT_TIMEOUT (10*HZ)
 #define QDIO_FORCE_CHECK_TIMEOUT (10*HZ)

271 lines not on this page · raw message

390 lines not on this page · raw message

Index: quilt-2.6/drivers/s390/char/sclp_cpi_sys.h
===================================================================
@@ -0,0 +1,15 @@
+/*
+ *  drivers/s390/char/sclp_cpi_sys.h
+ *    SCLP control program identification sysfs interface
+ *
+ *    Copyright IBM Corp. 2007
+ *    Author(s): Michael Ernst <[email protected]>
+ */
+
+#ifndef __SCLP_CPI_SYS_H__
+#define __SCLP_CPI_SYS_H__
+
+int sclp_cpi_set_data(const char *system, const char *sysplex,
+		      const char *type, u64 level);
+
+#endif	 /* __SCLP_CPI_SYS_H__ */

Index: quilt-2.6/arch/s390/kernel/early.c
===================================================================
@@ -276,8 +276,9 @@ void __init startup_init(void)
 	create_kernel_nss();
 	sort_main_extable();
 	setup_lowcore_early();
-	sclp_readinfo_early();
+	sclp_read_info_early();
 	sclp_facilities_detect();
+	sclp_read_cpu_info_early();
 	memsize = sclp_memory_detect();
 #ifndef CONFIG_64BIT
 	/*

Index: quilt-2.6/arch/s390/kernel/setup.c
===================================================================
@@ -920,7 +920,7 @@ setup_arch(char **cmdline_p)
 
 void __cpuinit print_cpu_info(struct cpuinfo_S390 *cpuinfo)
 {
-   printk("cpu %d "
+   printk(KERN_INFO "cpu %d "
 #ifdef CONFIG_SMP
            "phys_idx=%d "
 #endif

529 lines not on this page · raw message

319 lines not on this page · raw message

Index: quilt-2.6/drivers/s390/char/sclp.h
===================================================================
@@ -56,8 +56,6 @@ typedef unsigned int sclp_cmdw_t;
 #define SCLP_CMDW_READ_EVENT_DATA	0x00770005
 #define SCLP_CMDW_WRITE_EVENT_DATA	0x00760005
 #define SCLP_CMDW_WRITE_EVENT_MASK	0x00780005
-#define SCLP_CMDW_READ_SCP_INFO		0x00020001
-#define SCLP_CMDW_READ_SCP_INFO_FORCED	0x00120001
 
 #define GDS_ID_MDSMU		0x1310
 #define GDS_ID_MDSROUTEINFO	0x1311

@@ -83,6 +81,8 @@ extern u64 sclp_facilities;
 
 #define SCLP_HAS_CHP_INFO	(sclp_facilities & 0x8000000000000000ULL)
 #define SCLP_HAS_CHP_RECONFIG	(sclp_facilities & 0x2000000000000000ULL)
+#define SCLP_HAS_CPU_INFO	(sclp_facilities & 0x0800000000000000ULL)
+#define SCLP_HAS_CPU_RECONFIG	(sclp_facilities & 0x0400000000000000ULL)
 
 struct gds_subvector {
 	u8	length;

116 lines not on this page · raw message

Index: quilt-2.6/include/asm-s390/sclp.h
===================================================================
@@ -27,7 +27,26 @@ struct sclp_ipl_info {
 	char loadparm[LOADPARM_LEN];
 };
 
-void sclp_readinfo_early(void);
+struct sclp_cpu_entry {
+	u8 address;
+	u8 reserved0[13];
+	u8 type;
+	u8 reserved1;
+} __attribute__((packed));
+
+struct sclp_cpu_info {
+	unsigned int configured;
+	unsigned int standby;
+	unsigned int combined;
+	int has_cpu_type;
+	struct sclp_cpu_entry cpu[255];
+};
+
+int sclp_get_cpu_info(struct sclp_cpu_info *info);
+int sclp_cpu_configure(u8 cpu);
+int sclp_cpu_deconfigure(u8 cpu);
+void sclp_read_info_early(void);
+void sclp_read_cpu_info_early(void);
 void sclp_facilities_detect(void);
 unsigned long long sclp_memory_detect(void);
 int sclp_sdias_blk_count(void);

200 lines not on this page · raw message

138 lines not on this page · raw message

Index: quilt-2.6/mm/rmap.c
===================================================================
@@ -391,9 +391,6 @@ int page_referenced(struct page *page, i
 {
 	int referenced = 0;
 
-	if (page_test_and_clear_young(page))
-		referenced++;
-
 	if (TestClearPageReferenced(page))
 		referenced++;
 

@@ -409,6 +406,8 @@ int page_referenced(struct page *page, i
 				referenced += page_referenced_file(page);
 			unlock_page(page);
 		}
+		if (page_test_and_clear_young(page))
+			referenced++;
 	}
 	return referenced;
 }

@@ -640,6 +639,8 @@ void page_remove_rmap(struct page *page,
 		 * Leaving it set also helps swapoff to reinstate ptes
 		 * faster for those pages still in swapcache.
 		 */
+		if (page_test_and_clear_young(page))
+			SetPageReferenced(page);
 		if (page_test_dirty(page)) {
 			page_clear_dirty(page);
 			set_page_dirty(page);

Index: quilt-2.6/include/asm-s390/mmu_context.h
===================================================================
@@ -12,10 +12,15 @@
 #include <asm/pgalloc.h>
 #include <asm-generic/mm_hooks.h>
 
-/*
- * get a new mmu context.. S390 don't know about contexts.
- */
-#define init_new_context(tsk,mm)        0
+static inline int init_new_context(struct task_struct *tsk,
+				   struct mm_struct *mm)
+{
+	mm->context = _ASCE_TABLE_LENGTH | _ASCE_USER_BITS;
+#ifdef CONFIG_64BIT
+	mm->context |= _ASCE_TYPE_REGION3;
+#endif
+	return 0;
+}
 
 #define destroy_context(mm)             do { } while (0)
 

@@ -27,19 +32,11 @@
 
 static inline void update_mm(struct mm_struct *mm, struct task_struct *tsk)
 {
-	pgd_t *pgd = mm->pgd;
-	unsigned long asce_bits;
-
-	/* Calculate asce bits from the first pgd table entry. */
-	asce_bits = _ASCE_TABLE_LENGTH | _ASCE_USER_BITS;
-#ifdef CONFIG_64BIT
-	asce_bits |= _ASCE_TYPE_REGION3;
-#endif
-	S390_lowcore.user_asce = asce_bits | __pa(pgd);
+	S390_lowcore.user_asce = mm->context | __pa(mm->pgd);
 	if (switch_amode) {
 		/* Load primary space page table origin. */
-		pgd_t *shadow_pgd = get_shadow_table(pgd) ? : pgd;
-		S390_lowcore.user_exec_asce = asce_bits | __pa(shadow_pgd);
+		pgd_t *shadow_pgd = get_shadow_table(mm->pgd) ? : mm->pgd;
+		S390_lowcore.user_exec_asce = mm->context | __pa(shadow_pgd);
 		asm volatile(LCTL_OPCODE" 1,1,%0\n"
 			     : : "m" (S390_lowcore.user_exec_asce) );
 	} else

Index: quilt-2.6/include/asm-s390/tlbflush.h
===================================================================
@@ -42,11 +42,11 @@ static inline void __tlb_flush_global(vo
 /*
  * Flush all tlb entries of a page table on all cpus.
  */
-static inline void __tlb_flush_idte(pgd_t *pgd)
+static inline void __tlb_flush_idte(unsigned long asce)
 {
 	asm volatile(
 		"	.insn	rrf,0xb98e0000,0,%0,%1,0"
-		: : "a" (2048), "a" (__pa(pgd) & PAGE_MASK) : "cc" );
+		: : "a" (2048), "a" (asce) : "cc" );
 }
 
 static inline void __tlb_flush_mm(struct mm_struct * mm)

@@ -61,11 +61,11 @@ static inline void __tlb_flush_mm(struct
 	 * only ran on the local cpu.
 	 */
 	if (MACHINE_HAS_IDTE) {
-		pgd_t *shadow_pgd = get_shadow_table(mm->pgd);
+		pgd_t *shadow = get_shadow_table(mm->pgd);
 
-		if (shadow_pgd)
-			__tlb_flush_idte(shadow_pgd);
-		__tlb_flush_idte(mm->pgd);
+		if (shadow)
+			__tlb_flush_idte((unsigned long) shadow | mm->context);
+		__tlb_flush_idte((unsigned long) mm->pgd | mm->context);
 		return;
 	}
 	preempt_disable();

Index: quilt-2.6/arch/s390/kernel/setup.c
===================================================================
@@ -617,7 +617,7 @@ EXPORT_SYMBOL_GPL(real_memory_size);
 static void __init setup_memory_end(void)
 {
 	unsigned long memory_size;
-	unsigned long max_mem, max_phys;
+	unsigned long max_mem;
 	int i;
 
 #if defined(CONFIG_ZFCPDUMP) || defined(CONFIG_ZFCPDUMP_MODULE)

@@ -625,10 +625,10 @@ static void __init setup_memory_end(void
 		memory_end = ZFCPDUMP_HSA_SIZE;
 #endif
 	memory_size = 0;
-	max_phys = VMALLOC_END_INIT - VMALLOC_MIN_SIZE;
 	memory_end &= PAGE_MASK;
 
-	max_mem = memory_end ? min(max_phys, memory_end) : max_phys;
+	max_mem = memory_end ? min(VMALLOC_START, memory_end) : VMALLOC_START;
+	memory_end = min(max_mem, memory_end);
 
 	for (i = 0; i < MEMORY_CHUNKS; i++) {
 		struct mem_chunk *chunk = &memory_chunk[i];

Index: quilt-2.6/arch/s390/mm/vmem.c
===================================================================
@@ -15,10 +15,6 @@
 #include <asm/setup.h>
 #include <asm/tlbflush.h>
 
-unsigned long vmalloc_end;
-EXPORT_SYMBOL(vmalloc_end);
-
-static struct page *vmem_map;
 static DEFINE_MUTEX(vmem_mutex);
 
 struct memory_segment {

@@ -188,8 +184,8 @@ static int vmem_add_mem_map(unsigned lon
 	pte_t  pte;
 	int ret = -ENOMEM;
 
-	map_start = vmem_map + PFN_DOWN(start);
-	map_end	= vmem_map + PFN_DOWN(start + size);
+	map_start = VMEM_MAP + PFN_DOWN(start);
+	map_end	= VMEM_MAP + PFN_DOWN(start + size);
 
 	start_addr = (unsigned long) map_start & PAGE_MASK;
 	end_addr = PFN_ALIGN((unsigned long) map_end);

@@ -254,7 +250,7 @@ static int insert_memory_segment(struct 
 {
 	struct memory_segment *tmp;
 
-	if (PFN_DOWN(seg->start + seg->size) > max_pfn ||
+	if (seg->start + seg->size >= VMALLOC_START ||
 	    seg->start + seg->size < seg->start)
 		return -ERANGE;
 

@@ -357,17 +353,15 @@ out:
 
 /*
  * map whole physical memory to virtual memory (identity mapping)
+ * we reserve enough space in the vmalloc area for vmemmap to hotplug
+ * additional memory segments.
  */
 void __init vmem_map_init(void)
 {
-	unsigned long map_size;
 	int i;
 
-	map_size = ALIGN(max_low_pfn, MAX_ORDER_NR_PAGES) * sizeof(struct page);
-	vmalloc_end = PFN_ALIGN(VMALLOC_END_INIT) - PFN_ALIGN(map_size);
-	vmem_map = (struct page *) vmalloc_end;
-	NODE_DATA(0)->node_mem_map = vmem_map;
-
+	BUILD_BUG_ON((unsigned long)VMEM_MAP + VMEM_MAP_SIZE > VMEM_MAP_MAX);
+	NODE_DATA(0)->node_mem_map = VMEM_MAP;
 	for (i = 0; i < MEMORY_CHUNKS && memory_chunk[i].size > 0; i++)
 		vmem_add_mem(memory_chunk[i].addr, memory_chunk[i].size);
 }

57 lines not on this page · raw message

Index: quilt-2.6/arch/s390/kernel/process.c
===================================================================
@@ -36,7 +36,7 @@
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/notifier.h>
-
+#include <linux/utsname.h>
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
 #include <asm/system.h>

@@ -182,13 +182,15 @@ void cpu_idle(void)
 
 void show_regs(struct pt_regs *regs)
 {
-	struct task_struct *tsk = current;
-
-        printk("CPU:    %d    %s\n", task_thread_info(tsk)->cpu, print_tainted());
-        printk("Process %s (pid: %d, task: %p, ksp: %p)\n",
-	       current->comm, task_pid_nr(current), (void *) tsk,
-	       (void *) tsk->thread.ksp);
-
+	print_modules();
+	printk("CPU: %d %s %s %.*s\n",
+	       task_thread_info(current)->cpu, print_tainted(),
+	       init_utsname()->release,
+	       (int)strcspn(init_utsname()->version, " "),
+	       init_utsname()->version);
+	printk("Process %s (pid: %d, task: %p, ksp: %p)\n",
+	       current->comm, current->pid, current,
+	       (void *) current->thread.ksp);
 	show_registers(regs);
 	/* Show stack backtrace if pt_regs is from kernel mode */
 	if (!(regs->psw.mask & PSW_MASK_PSTATE))

Index: quilt-2.6/arch/s390/kernel/traps.c
===================================================================
@@ -31,6 +31,7 @@
 #include <linux/reboot.h>
 #include <linux/kprobes.h>
 #include <linux/bug.h>
+#include <linux/utsname.h>
 #include <asm/system.h>
 #include <asm/uaccess.h>
 #include <asm/io.h>

@@ -168,9 +169,16 @@ void show_stack(struct task_struct *task
  */
 void dump_stack(void)
 {
+	printk("CPU: %d %s %s %.*s\n",
+	       task_thread_info(current)->cpu, print_tainted(),
+	       init_utsname()->release,
+	       (int)strcspn(init_utsname()->version, " "),
+	       init_utsname()->version);
+	printk("Process %s (pid: %d, task: %p, ksp: %p)\n",
+	       current->comm, current->pid, current,
+	       (void *) current->thread.ksp);
 	show_stack(NULL, NULL);
 }
-
 EXPORT_SYMBOL(dump_stack);
 
 static inline int mask_bits(struct pt_regs *regs, unsigned long bits)

@@ -258,8 +266,14 @@ void die(const char * str, struct pt_reg
 	console_verbose();
 	spin_lock_irq(&die_lock);
 	bust_spinlocks(1);
-	printk("%s: %04lx [#%d]\n", str, err & 0xffff, ++die_counter);
-	print_modules();
+	printk("%s: %04lx [#%d] ", str, err & 0xffff, ++die_counter);
+#ifdef CONFIG_PREEMPT
+	printk("PREEMPT ");
+#endif
+#ifdef CONFIG_SMP
+	printk("SMP");
+#endif
+	printk("\n");
 	notify_die(DIE_OOPS, str, regs, err, current->thread.trap_no, SIGSEGV);
 	show_regs(regs);
 	bust_spinlocks(0);

Index: quilt-2.6/arch/s390/kernel/setup.c
===================================================================
@@ -559,7 +559,9 @@ setup_resources(void)
 	data_resource.start = (unsigned long) &_etext;
 	data_resource.end = (unsigned long) &_edata - 1;
 
-	for (i = 0; i < MEMORY_CHUNKS && memory_chunk[i].size > 0; i++) {
+	for (i = 0; i < MEMORY_CHUNKS; i++) {
+		if (!memory_chunk[i].size)
+			continue;
 		res = alloc_bootmem_low(sizeof(struct resource));
 		res->flags = IORESOURCE_BUSY | IORESOURCE_MEM;
 		switch (memory_chunk[i].type) {

@@ -630,6 +632,27 @@ static void __init setup_memory_end(void
 	max_mem = memory_end ? min(VMALLOC_START, memory_end) : VMALLOC_START;
 	memory_end = min(max_mem, memory_end);
 
+	/*
+	 * Make sure all chunks are MAX_ORDER aligned so we don't need the
+	 * extra checks that HOLES_IN_ZONE would require.
+	 */
+	for (i = 0; i < MEMORY_CHUNKS; i++) {
+		unsigned long start, end;
+		struct mem_chunk *chunk;
+		unsigned long align;
+
+		chunk = &memory_chunk[i];
+		align = 1UL << (MAX_ORDER + PAGE_SHIFT - 1);
+		start = (chunk->addr + align - 1) & ~(align - 1);
+		end = (chunk->addr + chunk->size) & ~(align - 1);
+		if (start >= end)
+			memset(chunk, 0, sizeof(*chunk));
+		else {
+			chunk->addr = start;
+			chunk->size = end - start;
+		}
+	}
+
 	for (i = 0; i < MEMORY_CHUNKS; i++) {
 		struct mem_chunk *chunk = &memory_chunk[i];
 

Index: quilt-2.6/arch/s390/mm/vmem.c
===================================================================
@@ -376,7 +376,7 @@ static int __init vmem_convert_memory_ch
 	int i;
 
 	mutex_lock(&vmem_mutex);
-	for (i = 0; i < MEMORY_CHUNKS && memory_chunk[i].size > 0; i++) {
+	for (i = 0; i < MEMORY_CHUNKS; i++) {
 		if (!memory_chunk[i].size)
 			continue;
 		seg = kzalloc(sizeof(*seg), GFP_KERNEL);

Index: quilt-2.6/arch/s390/kernel/traps.c
===================================================================
@@ -271,7 +271,10 @@ void die(const char * str, struct pt_reg
 	printk("PREEMPT ");
 #endif
 #ifdef CONFIG_SMP
-	printk("SMP");
+	printk("SMP ");
+#endif
+#ifdef CONFIG_DEBUG_PAGEALLOC
+	printk("DEBUG_PAGEALLOC");
 #endif
 	printk("\n");
 	notify_die(DIE_OOPS, str, regs, err, current->thread.trap_no, SIGSEGV);

Index: quilt-2.6/arch/s390/mm/init.c
===================================================================
@@ -167,6 +167,33 @@ void __init mem_init(void)
 	       PFN_ALIGN((unsigned long)&_eshared) - 1);
 }
 
+#ifdef CONFIG_DEBUG_PAGEALLOC
+void kernel_map_pages(struct page *page, int numpages, int enable)
+{
+	pgd_t *pgd;
+	pud_t *pud;
+	pmd_t *pmd;
+	pte_t *pte;
+	unsigned long address;
+	int i;
+
+	for (i = 0; i < numpages; i++) {
+		address = page_to_phys(page + i);
+		pgd = pgd_offset_k(address);
+		pud = pud_offset(pgd, address);
+		pmd = pmd_offset(pud, address);
+		pte = pte_offset_kernel(pmd, address);
+		if (!enable) {
+			ptep_invalidate(address, pte);
+			continue;
+		}
+		*pte = mk_pte_phys(address, __pgprot(_PAGE_TYPE_RW));
+		/* Flush cpu write queue. */
+		mb();
+	}
+}
+#endif
+
 void free_initmem(void)
 {
         unsigned long addr;

Index: quilt-2.6/include/asm-s390/cacheflush.h
===================================================================
@@ -24,4 +24,8 @@
 #define copy_from_user_page(vma, page, vaddr, dst, src, len) \
 	memcpy(dst, src, len)
 
+#ifdef CONFIG_DEBUG_PAGEALLOC
+void kernel_map_pages(struct page *page, int numpages, int enable);
+#endif
+
 #endif /* _S390_CACHEFLUSH_H */

Index: quilt-2.6/arch/s390/lib/spinlock.c
===================================================================
@@ -39,7 +39,7 @@ static inline void _raw_yield_cpu(int cp
 		_raw_yield();
 }
 
-void _raw_spin_lock_wait(raw_spinlock_t *lp, unsigned int pc)
+void _raw_spin_lock_wait(raw_spinlock_t *lp)
 {
 	int count = spin_retry;
 	unsigned int cpu = ~smp_processor_id();

@@ -53,15 +53,13 @@ void _raw_spin_lock_wait(raw_spinlock_t 
 		}
 		if (__raw_spin_is_locked(lp))
 			continue;
-		if (_raw_compare_and_swap(&lp->owner_cpu, 0, cpu) == 0) {
-			lp->owner_pc = pc;
+		if (_raw_compare_and_swap(&lp->owner_cpu, 0, cpu) == 0)
 			return;
-		}
 	}
 }
 EXPORT_SYMBOL(_raw_spin_lock_wait);
 
-int _raw_spin_trylock_retry(raw_spinlock_t *lp, unsigned int pc)
+int _raw_spin_trylock_retry(raw_spinlock_t *lp)
 {
 	unsigned int cpu = ~smp_processor_id();
 	int count;

@@ -69,10 +67,8 @@ int _raw_spin_trylock_retry(raw_spinlock
 	for (count = spin_retry; count > 0; count--) {
 		if (__raw_spin_is_locked(lp))
 			continue;
-		if (_raw_compare_and_swap(&lp->owner_cpu, 0, cpu) == 0) {
-			lp->owner_pc = pc;
+		if (_raw_compare_and_swap(&lp->owner_cpu, 0, cpu) == 0)
 			return 1;
-		}
 	}
 	return 0;
 }

Index: quilt-2.6/include/asm-s390/spinlock.h
===================================================================
@@ -58,39 +58,32 @@ _raw_compare_and_swap(volatile unsigned 
 	do { while (__raw_spin_is_locked(lock)) \
 		 _raw_spin_relax(lock); } while (0)
 
-extern void _raw_spin_lock_wait(raw_spinlock_t *, unsigned int pc);
-extern int _raw_spin_trylock_retry(raw_spinlock_t *, unsigned int pc);
+extern void _raw_spin_lock_wait(raw_spinlock_t *);
+extern int _raw_spin_trylock_retry(raw_spinlock_t *);
 extern void _raw_spin_relax(raw_spinlock_t *lock);
 
 static inline void __raw_spin_lock(raw_spinlock_t *lp)
 {
-	unsigned long pc = 1 | (unsigned long) __builtin_return_address(0);
 	int old;
 
 	old = _raw_compare_and_swap(&lp->owner_cpu, 0, ~smp_processor_id());
-	if (likely(old == 0)) {
-		lp->owner_pc = pc;
+	if (likely(old == 0))
 		return;
-	}
-	_raw_spin_lock_wait(lp, pc);
+	_raw_spin_lock_wait(lp);
 }
 
 static inline int __raw_spin_trylock(raw_spinlock_t *lp)
 {
-	unsigned long pc = 1 | (unsigned long) __builtin_return_address(0);
 	int old;
 
 	old = _raw_compare_and_swap(&lp->owner_cpu, 0, ~smp_processor_id());
-	if (likely(old == 0)) {
-		lp->owner_pc = pc;
+	if (likely(old == 0))
 		return 1;
-	}
-	return _raw_spin_trylock_retry(lp, pc);
+	return _raw_spin_trylock_retry(lp);
 }
 
 static inline void __raw_spin_unlock(raw_spinlock_t *lp)
 {
-	lp->owner_pc = 0;
 	_raw_compare_and_swap(&lp->owner_cpu, lp->owner_cpu, 0);
 }
 		

Index: quilt-2.6/include/asm-s390/spinlock_types.h
===================================================================
@@ -7,7 +7,6 @@
 
 typedef struct {
 	volatile unsigned int owner_cpu;
-	volatile unsigned int owner_pc;
 } __attribute__ ((aligned (4))) raw_spinlock_t;
 
 #define __RAW_SPIN_LOCK_UNLOCKED	{ 0 }

Index: quilt-2.6/include/asm-s390/rwsem.h
===================================================================
@@ -91,8 +91,8 @@ struct rw_semaphore {
 #endif
 
 #define __RWSEM_INITIALIZER(name) \
-{ RWSEM_UNLOCKED_VALUE, SPIN_LOCK_UNLOCKED, LIST_HEAD_INIT((name).wait_list) \
-  __RWSEM_DEP_MAP_INIT(name) }
+ { RWSEM_UNLOCKED_VALUE, __SPIN_LOCK_UNLOCKED((name).wait.lock), \
+   LIST_HEAD_INIT((name).wait_list) __RWSEM_DEP_MAP_INIT(name) }
 
 #define DECLARE_RWSEM(name) \
 	struct rw_semaphore name = __RWSEM_INITIALIZER(name)

Index: quilt-2.6/arch/s390/kernel/early.c
===================================================================
@@ -278,7 +278,6 @@ void __init startup_init(void)
 	setup_lowcore_early();
 	sclp_read_info_early();
 	sclp_facilities_detect();
-	sclp_read_cpu_info_early();
 	memsize = sclp_memory_detect();
 #ifndef CONFIG_64BIT
 	/*

Index: quilt-2.6/arch/s390/kernel/setup.c
===================================================================
@@ -922,7 +922,6 @@ setup_arch(char **cmdline_p)
 
         cpu_init();
         __cpu_logical_map[0] = S390_lowcore.cpu_data.cpu_addr;
-	smp_setup_cpu_possible_map();
 
 	/*
 	 * Setup capabilities (ELF_HWCAP & ELF_PLATFORM).

251 lines not on this page · raw message

72 lines not on this page · raw message

Index: quilt-2.6/include/asm-s390/sclp.h
===================================================================
@@ -46,7 +46,6 @@ int sclp_get_cpu_info(struct sclp_cpu_in
 int sclp_cpu_configure(u8 cpu);
 int sclp_cpu_deconfigure(u8 cpu);
 void sclp_read_info_early(void);
-void sclp_read_cpu_info_early(void);
 void sclp_facilities_detect(void);
 unsigned long long sclp_memory_detect(void);
 int sclp_sdias_blk_count(void);

Index: quilt-2.6/include/asm-s390/smp.h
===================================================================
@@ -35,8 +35,6 @@ extern void machine_restart_smp(char *);
 extern void machine_halt_smp(void);
 extern void machine_power_off_smp(void);
 
-extern void smp_setup_cpu_possible_map(void);
-
 #define NO_PROC_ID		0xFF		/* No processor magic marker */
 
 /*

@@ -103,7 +101,6 @@ static inline void smp_send_stop(void)
 
 #define hard_smp_processor_id()		0
 #define smp_cpu_not_running(cpu)	1
-#define smp_setup_cpu_possible_map()	do { } while (0)
 #endif
 
 extern union save_area *zfcpdump_save_areas[NR_CPUS + 1];

Index: quilt-2.6/kernel/sysctl_check.c
===================================================================
@@ -1,6 +1,5 @@
 #include <linux/stat.h>
 #include <linux/sysctl.h>
-#include "../arch/s390/appldata/appldata.h"
 #include "../fs/xfs/linux-2.6/xfs_sysctl.h"
 #include <linux/sunrpc/debug.h>
 #include <linux/string.h>

Index: quilt-2.6/drivers/s390/block/dasd.c
===================================================================
@@ -1969,9 +1969,10 @@ dasd_generic_probe (struct ccw_device *c
 		ret = ccw_device_set_online(cdev);
 	if (ret)
 		printk(KERN_WARNING
-		       "dasd_generic_probe: could not initially online "
-		       "ccw-device %s\n", cdev->dev.bus_id);
-	return ret;
+		       "dasd_generic_probe: could not initially "
+		       "online ccw-device %s; return code: %d\n",
+		       cdev->dev.bus_id, ret);
+	return 0;
 }
 
 /*

Index: quilt-2.6/arch/s390/crypto/aes_s390.c
===================================================================
@@ -341,7 +341,7 @@ static int __init aes_init(void)
 		ecb_aes_alg.cra_u.blkcipher.max_keysize = AES_MIN_KEY_SIZE;
 		cbc_aes_alg.cra_u.blkcipher.max_keysize = AES_MIN_KEY_SIZE;
 		printk(KERN_INFO
-		       "aes_s390: hardware acceleration only available for"
+		       "aes_s390: hardware acceleration only available for "
 		       "128 bit keys\n");
 	}
 

Index: quilt-2.6/drivers/s390/char/monwriter.c
===================================================================
@@ -295,7 +295,7 @@ module_init(mon_init);
 module_exit(mon_exit);
 
 module_param_named(max_bufs, mon_max_bufs, int, 0644);
-MODULE_PARM_DESC(max_bufs, "Maximum number of sample monitor data buffers"
+MODULE_PARM_DESC(max_bufs, "Maximum number of sample monitor data buffers "
 		 "that can be active at one time");
 
 MODULE_AUTHOR("Melissa Howland <[email protected]>");

Index: quilt-2.6/drivers/s390/char/vmlogrdr.c
===================================================================
@@ -683,7 +683,7 @@ static int vmlogrdr_register_driver(void
 	/* Register with iucv driver */
 	ret = iucv_register(&vmlogrdr_iucv_handler, 1);
 	if (ret) {
-		printk (KERN_ERR "vmlogrdr: failed to register with"
+		printk (KERN_ERR "vmlogrdr: failed to register with "
 			"iucv driver\n");
 		goto out;
 	}

Index: quilt-2.6/drivers/s390/cio/chsc.c
===================================================================
@@ -1042,7 +1042,7 @@ chsc_determine_css_characteristics(void)
 
 	scsc_area = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA);
 	if (!scsc_area) {
-		CIO_MSG_EVENT(0, "Was not able to determine available"
+		CIO_MSG_EVENT(0, "Was not able to determine available "
 			      "CHSCs due to no memory.\n");
 		return -ENOMEM;
 	}

Index: quilt-2.6/drivers/s390/net/claw.c
===================================================================
@@ -2416,7 +2416,7 @@ init_ccw_bk(struct net_device *dev)
 		    privptr->p_buff_pages_perwrite);
 #endif
                    if (p_buff==NULL) {
-                        printk(KERN_INFO "%s:%s __get_free_pages"
+			printk(KERN_INFO "%s:%s __get_free_pages "
 			 	"for writes buf failed : get is for %d pages\n",
 				dev->name,
 				__FUNCTION__,