X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=drivers%2Fide%2Fide.c;h=2b1a1389c31880b16d492f8145ddfe5ac96acd90;hb=c1607e1af238b823a2158a18ff6c89144ce38c6c;hp=9c8468de1a7521aa62c179cd6bf952fa461a2a4c;hpb=ebdea46fecae40c4d7effcd33f40918a37a1df4b;p=powerpc.git

diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 9c8468de1a..15b13831ee 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -187,6 +187,12 @@ int noautodma = 1;
 
 EXPORT_SYMBOL(noautodma);
 
+#ifdef CONFIG_BLK_DEV_IDEACPI
+int ide_noacpi = 0;
+int ide_noacpitfs = 1;
+int ide_noacpionboot = 1;
+#endif
+
 /*
  * This is declared extern in ide.h, for access by other IDE modules:
  */
@@ -450,7 +456,7 @@ void ide_hwif_release_regions(ide_hwif_t *hwif)
  *	@hwif: hwif to update
  *	@tmp_hwif: template
  *
- *	Restore hwif to a previous state by copying most settngs
+ *	Restore hwif to a previous state by copying most settings
  *	from the template.
  */
 
@@ -503,6 +509,7 @@ static void ide_hwif_restore(ide_hwif_t *hwif, ide_hwif_t *tmp_hwif)
 	hwif->ide_dma_on		= tmp_hwif->ide_dma_on;
 	hwif->ide_dma_off_quietly	= tmp_hwif->ide_dma_off_quietly;
 	hwif->ide_dma_test_irq		= tmp_hwif->ide_dma_test_irq;
+	hwif->ide_dma_clear_irq		= tmp_hwif->ide_dma_clear_irq;
 	hwif->ide_dma_host_on		= tmp_hwif->ide_dma_host_on;
 	hwif->ide_dma_host_off		= tmp_hwif->ide_dma_host_off;
 	hwif->ide_dma_lostirq		= tmp_hwif->ide_dma_lostirq;
@@ -539,18 +546,18 @@ static void ide_hwif_restore(ide_hwif_t *hwif, ide_hwif_t *tmp_hwif)
 	hwif->dma_vendor3		= tmp_hwif->dma_vendor3;
 	hwif->dma_prdtable		= tmp_hwif->dma_prdtable;
 
-	hwif->dma_extra			= tmp_hwif->dma_extra;
 	hwif->config_data		= tmp_hwif->config_data;
 	hwif->select_data		= tmp_hwif->select_data;
+	hwif->extra_base		= tmp_hwif->extra_base;
+	hwif->extra_ports		= tmp_hwif->extra_ports;
 	hwif->autodma			= tmp_hwif->autodma;
 	hwif->udma_four			= tmp_hwif->udma_four;
-	hwif->no_dsc			= tmp_hwif->no_dsc;
 
 	hwif->hwif_data			= tmp_hwif->hwif_data;
 }
 
 /**
- *	ide_unregister		-	free an ide interface
+ *	ide_unregister		-	free an IDE interface
  *	@index: index of interface (will change soon to a pointer)
  *
  *	Perform the final unregister of an IDE interface. At the moment
@@ -563,8 +570,8 @@ static void ide_hwif_restore(ide_hwif_t *hwif, ide_hwif_t *tmp_hwif)
  *	deadlocking the IDE layer. The shutdown callback is called
  *	before we take the lock and free resources. It is up to the
  *	caller to be sure there is no pending I/O here, and that
- *	the interfce will not be reopened (present/vanishing locking
- *	isnt yet done btw). After we commit to the final kill we
+ *	the interface will not be reopened (present/vanishing locking
+ *	isn't yet done BTW). After we commit to the final kill we
  *	call the cleanup callback with the ide locks held.
  *
  *	Unregister restores the hwif structures to the default state.
@@ -674,6 +681,9 @@ void ide_unregister(unsigned int index)
 		hwif->dma_status = 0;
 		hwif->dma_vendor3 = 0;
 		hwif->dma_prdtable = 0;
+
+		hwif->extra_base  = 0;
+		hwif->extra_ports = 0;
 	}
 
 	/* copy original settings */
@@ -969,8 +979,8 @@ ide_settings_t *ide_find_setting_by_name (ide_drive_t *drive, char *name)
  *	@drive: drive
  *
  *	Automatically remove all the driver specific settings for this
- *	drive. This function may sleep and must not be called from IRQ
- *	context. The caller must hold ide_setting_sem.
+ *	drive. This function may not be called from IRQ context. The
+ *	caller must hold ide_setting_sem.
  */
  
 static void auto_remove_settings (ide_drive_t *drive)
@@ -1210,16 +1220,21 @@ EXPORT_SYMBOL(system_bus_clock);
 static int generic_ide_suspend(struct device *dev, pm_message_t mesg)
 {
 	ide_drive_t *drive = dev->driver_data;
+	ide_hwif_t *hwif = HWIF(drive);
 	struct request rq;
 	struct request_pm_state rqpm;
 	ide_task_t args;
 
+	/* Call ACPI _GTM only once */
+	if (!(drive->dn % 2))
+		ide_acpi_get_timing(hwif);
+
 	memset(&rq, 0, sizeof(rq));
 	memset(&rqpm, 0, sizeof(rqpm));
 	memset(&args, 0, sizeof(args));
-	rq.flags = REQ_PM_SUSPEND;
+	rq.cmd_type = REQ_TYPE_PM_SUSPEND;
 	rq.special = &args;
-	rq.end_io_data = &rqpm;
+	rq.data = &rqpm;
 	rqpm.pm_step = ide_pm_state_start_suspend;
 	if (mesg.event == PM_EVENT_PRETHAW)
 		mesg.event = PM_EVENT_FREEZE;
@@ -1231,16 +1246,23 @@ static int generic_ide_suspend(struct device *dev, pm_message_t mesg)
 static int generic_ide_resume(struct device *dev)
 {
 	ide_drive_t *drive = dev->driver_data;
+	ide_hwif_t *hwif = HWIF(drive);
 	struct request rq;
 	struct request_pm_state rqpm;
 	ide_task_t args;
 
+	/* Call ACPI _STM only once */
+	if (!(drive->dn % 2))
+		ide_acpi_push_timing(hwif);
+
+	ide_acpi_exec_tfs(drive);
+
 	memset(&rq, 0, sizeof(rq));
 	memset(&rqpm, 0, sizeof(rqpm));
 	memset(&args, 0, sizeof(args));
-	rq.flags = REQ_PM_RESUME;
+	rq.cmd_type = REQ_TYPE_PM_RESUME;
 	rq.special = &args;
-	rq.end_io_data = &rqpm;
+	rq.data = &rqpm;
 	rqpm.pm_step = ide_pm_state_start_resume;
 	rqpm.pm_state = PM_EVENT_ON;
 
@@ -1360,6 +1382,11 @@ int generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device
 
 			spin_lock_irqsave(&ide_lock, flags);
 
+			if (HWGROUP(drive)->resetting) {
+				spin_unlock_irqrestore(&ide_lock, flags);
+				return -EBUSY;
+			}
+
 			ide_abort(drive, "drive reset");
 
 			BUG_ON(HWGROUP(drive)->handler);
@@ -1534,6 +1561,24 @@ static int __init ide_setup(char *s)
 	}
 #endif /* CONFIG_BLK_DEV_IDEPCI */
 
+#ifdef CONFIG_BLK_DEV_IDEACPI
+	if (!strcmp(s, "ide=noacpi")) {
+		//printk(" : Disable IDE ACPI support.\n");
+		ide_noacpi = 1;
+		return 1;
+	}
+	if (!strcmp(s, "ide=acpigtf")) {
+		//printk(" : Enable IDE ACPI _GTF support.\n");
+		ide_noacpitfs = 0;
+		return 1;
+	}
+	if (!strcmp(s, "ide=acpionboot")) {
+		//printk(" : Call IDE ACPI methods on boot.\n");
+		ide_noacpionboot = 0;
+		return 1;
+	}
+#endif /* CONFIG_BLK_DEV_IDEACPI */
+
 	/*
 	 * Look for drive options:  "hdx="
 	 */
@@ -1772,8 +1817,9 @@ done:
 	return 1;
 }
 
-extern void pnpide_init(void);
-extern void h8300_ide_init(void);
+extern void __init pnpide_init(void);
+extern void __exit pnpide_exit(void);
+extern void __init h8300_ide_init(void);
 
 /*
  * probe_for_hwifs() finds/initializes "known" IDE interfaces
@@ -1865,11 +1911,22 @@ void ide_unregister_subdriver(ide_drive_t *drive, ide_driver_t *driver)
 {
 	unsigned long flags;
 	
-	down(&ide_setting_sem);
-	spin_lock_irqsave(&ide_lock, flags);
 #ifdef CONFIG_PROC_FS
 	ide_remove_proc_entries(drive->proc, driver->proc);
 #endif
+	down(&ide_setting_sem);
+	spin_lock_irqsave(&ide_lock, flags);
+	/*
+	 * ide_setting_sem protects the settings list
+	 * ide_lock protects the use of settings
+	 *
+	 * so we need to hold both, ide_settings_sem because we want to
+	 * modify the settings list, and ide_lock because we cannot take
+	 * a setting out that is being used.
+	 *
+	 * OTOH both ide_{read,write}_setting are only ever used under
+	 * ide_setting_sem.
+	 */
 	auto_remove_settings(drive);
 	spin_unlock_irqrestore(&ide_lock, flags);
 	up(&ide_setting_sem);
@@ -1993,10 +2050,16 @@ EXPORT_SYMBOL_GPL(ide_bus_type);
  */
 static int __init ide_init(void)
 {
+	int ret;
+
 	printk(KERN_INFO "Uniform Multi-Platform E-IDE driver " REVISION "\n");
 	system_bus_speed = ide_system_bus_speed();
 
-	bus_register(&ide_bus_type);
+	ret = bus_register(&ide_bus_type);
+	if (ret < 0) {
+		printk(KERN_WARNING "IDE: bus_register error: %d\n", ret);
+		return ret;
+	}
 
 	init_ide_data();
 
@@ -2061,13 +2124,17 @@ int __init init_module (void)
 	return ide_init();
 }
 
-void cleanup_module (void)
+void __exit cleanup_module (void)
 {
 	int index;
 
 	for (index = 0; index < MAX_HWIFS; ++index)
 		ide_unregister(index);
 
+#ifdef CONFIG_BLK_DEV_IDEPNP
+	pnpide_exit();
+#endif
+
 #ifdef CONFIG_PROC_FS
 	proc_ide_destroy();
 #endif