Merge master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6:
  ide: fix PIO setup on resume for ATAPI devices
  ide: legacy PCI bus order probing fixes
  ide: add ide_proc_register_port()
  ide: add "initializing" argument to ide_register_hw()
  ide: cable detection fixes (take 2)
  ide: move IDE settings handling to ide-proc.c
  ide: split off ioctl handling from IDE settings (v2)
  ide: make /proc/ide/ optional
  ide: add ide_tune_dma() helper
  ide: rework the code for selecting the best DMA transfer mode (v3)
  ide: fix UDMA/MWDMA/SWDMA masks (v3)

60 files changed, 1039 insertions, 1407 deletions

diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
index 5bdf64b7791..1d06b415ede 100644
--- a/drivers/ide/Kconfig
+++ b/drivers/ide/Kconfig
@@ -291,6 +291,17 @@ config IDE_TASK_IOCTL
 
 	  If you are unsure, say N here.
 
+config IDE_PROC_FS
+	bool "legacy /proc/ide/ support"
+	depends on IDE && PROC_FS
+	default y
+	help
+	  This option enables support for the various files in
+	  /proc/ide.  In Linux 2.6 this has been superseded by
+	  files in sysfs but many legacy applications rely on this.
+
+	  If unsure say Y.
+
 comment "IDE chipset support/bugfixes"
 
 config IDE_GENERIC
@@ -360,6 +371,9 @@ config IDEPCI_SHARE_IRQ
 	  It is safe to say Y to this question, in most cases.
 	  If unsure, say N.
 
+config IDEPCI_PCIBUS_ORDER
+	def_bool PCI && BLK_DEV_IDE=y && BLK_DEV_IDEPCI
+
 config BLK_DEV_OFFBOARD
 	bool "Boot off-board chipsets first support"
 	depends on PCI && BLK_DEV_IDEPCI
diff --git a/drivers/ide/Makefile b/drivers/ide/Makefile
index d9f029e8ff7..75dc6969e0a 100644
--- a/drivers/ide/Makefile
+++ b/drivers/ide/Makefile
@@ -20,7 +20,7 @@ ide-core-$(CONFIG_BLK_DEV_CMD640)	+= pci/cmd640.o
 # Core IDE code - must come before legacy
 ide-core-$(CONFIG_BLK_DEV_IDEPCI)	+= setup-pci.o
 ide-core-$(CONFIG_BLK_DEV_IDEDMA)	+= ide-dma.o
-ide-core-$(CONFIG_PROC_FS)		+= ide-proc.o
+ide-core-$(CONFIG_IDE_PROC_FS)		+= ide-proc.o
 ide-core-$(CONFIG_BLK_DEV_IDEPNP)	+= ide-pnp.o
 ide-core-$(CONFIG_BLK_DEV_IDEACPI)	+= ide-acpi.o
 
diff --git a/drivers/ide/arm/bast-ide.c b/drivers/ide/arm/bast-ide.c
index 9d474e5fd8d..f7449d04114 100644
--- a/drivers/ide/arm/bast-ide.c
+++ b/drivers/ide/arm/bast-ide.c
@@ -45,7 +45,7 @@ bastide_register(unsigned int base, unsigned int aux, int irq,
 	hw.io_ports[IDE_CONTROL_OFFSET] = aux + (6 * 0x20);
 	hw.irq = irq;
 
-	ide_register_hw(&hw, hwif);
+	ide_register_hw(&hw, 0, hwif);
 
 	return 0;
 }
diff --git a/drivers/ide/arm/icside.c b/drivers/ide/arm/icside.c
index e2953fc1faf..1fe0457243d 100644
--- a/drivers/ide/arm/icside.c
+++ b/drivers/ide/arm/icside.c
@@ -342,7 +342,7 @@ static int icside_dma_check(ide_drive_t *drive)
 	 * Enable DMA on any drive that has multiword DMA
 	 */
 	if (id->field_valid & 2) {
-		xfer_mode = ide_dma_speed(drive, 0);
+		xfer_mode = ide_max_dma_mode(drive);
 		goto out;
 	}
 
@@ -591,7 +591,8 @@ icside_register_v5(struct icside_state *state, struct expansion_card *ec)
 	state->hwif[0] = hwif;
 
 	probe_hwif_init(hwif);
-	create_proc_ide_interfaces();
+
+	ide_proc_register_port(hwif);
 
 	return 0;
 }
@@ -679,7 +680,9 @@ icside_register_v6(struct icside_state *state, struct expansion_card *ec)
 
 	probe_hwif_init(hwif);
 	probe_hwif_init(mate);
-	create_proc_ide_interfaces();
+
+	ide_proc_register_port(hwif);
+	ide_proc_register_port(mate);
 
 	return 0;
 
diff --git a/drivers/ide/arm/ide_arm.c b/drivers/ide/arm/ide_arm.c
index 23488c4d1fc..a3d6744e870 100644
--- a/drivers/ide/arm/ide_arm.c
+++ b/drivers/ide/arm/ide_arm.c
@@ -38,6 +38,6 @@ void __init ide_arm_init(void)
 		memset(&hw, 0, sizeof(hw));
 		ide_std_init_ports(&hw, IDE_ARM_IO, IDE_ARM_IO + 0x206);
 		hw.irq = IDE_ARM_IRQ;
-		ide_register_hw(&hw, NULL);
+		ide_register_hw(&hw, 1, NULL);
 	}
 }
diff --git a/drivers/ide/arm/rapide.c b/drivers/ide/arm/rapide.c
index 9c6c49fdd2b..890ea3fac3c 100644
--- a/drivers/ide/arm/rapide.c
+++ b/drivers/ide/arm/rapide.c
@@ -76,7 +76,7 @@ rapide_probe(struct expansion_card *ec, const struct ecard_id *id)
 		hwif->gendev.parent = &ec->dev;
 		hwif->noprobe = 0;
 		probe_hwif_init(hwif);
-		create_proc_ide_interfaces();
+		ide_proc_register_port(hwif);
 		ecard_set_drvdata(ec, hwif);
 		goto out;
 	}
diff --git a/drivers/ide/cris/ide-cris.c b/drivers/ide/cris/ide-cris.c
index 5e8efc89255..c04cb25a01f 100644
--- a/drivers/ide/cris/ide-cris.c
+++ b/drivers/ide/cris/ide-cris.c
@@ -796,7 +796,7 @@ init_e100_ide (void)
 		                ide_offsets,
 		                0, 0, cris_ide_ack_intr,
 		                ide_default_irq(0));
-		ide_register_hw(&hw, &hwif);
+		ide_register_hw(&hw, 1, &hwif);
 		hwif->mmio = 1;
 		hwif->chipset = ide_etrax100;
 		hwif->tuneproc = &tune_cris_ide;
@@ -1004,7 +1004,7 @@ static int cris_ide_build_dmatable (ide_drive_t *drive)
 
 static int cris_config_drive_for_dma (ide_drive_t *drive)
 {
-	u8 speed = ide_dma_speed(drive, 1);
+	u8 speed = ide_max_dma_mode(drive);
 
 	if (!speed)
 		return 0;
diff --git a/drivers/ide/h8300/ide-h8300.c b/drivers/ide/h8300/ide-h8300.c
index 88750a30033..6d26ad7360d 100644
--- a/drivers/ide/h8300/ide-h8300.c
+++ b/drivers/ide/h8300/ide-h8300.c
@@ -101,7 +101,7 @@ void __init h8300_ide_init(void)
 	hw_setup(&hw);
 
 	/* register if */
-	idx = ide_register_hw(&hw, &hwif);
+	idx = ide_register_hw(&hw, 1, &hwif);
 	if (idx == -1) {
 		printk(KERN_ERR "ide-h8300: IDE I/F register failed\n");
 		return;
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 638becda81c..252ab8295ed 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -3059,10 +3059,14 @@ int ide_cdrom_probe_capabilities (ide_drive_t *drive)
 	return nslots;
 }
 
+#ifdef CONFIG_IDE_PROC_FS
 static void ide_cdrom_add_settings(ide_drive_t *drive)
 {
-	ide_add_setting(drive,	"dsc_overlap",		SETTING_RW, -1, -1, TYPE_BYTE, 0, 1, 1,	1, &drive->dsc_overlap, NULL);
+	ide_add_setting(drive, "dsc_overlap", SETTING_RW, TYPE_BYTE, 0, 1, 1, 1, &drive->dsc_overlap, NULL);
 }
+#else
+static inline void ide_cdrom_add_settings(ide_drive_t *drive) { ; }
+#endif
 
 /*
  * standard prep_rq_fn that builds 10 byte cmds
@@ -3274,7 +3278,7 @@ int ide_cdrom_setup (ide_drive_t *drive)
 	return 0;
 }
 
-#ifdef CONFIG_PROC_FS
+#ifdef CONFIG_IDE_PROC_FS
 static
 sector_t ide_cdrom_capacity (ide_drive_t *drive)
 {
@@ -3291,7 +3295,7 @@ static void ide_cd_remove(ide_drive_t *drive)
 {
 	struct cdrom_info *info = drive->driver_data;
 
-	ide_unregister_subdriver(drive, info->driver);
+	ide_proc_unregister_driver(drive, info->driver);
 
 	del_gendisk(info->disk);
 
@@ -3321,7 +3325,7 @@ static void ide_cd_release(struct kref *kref)
 
 static int ide_cd_probe(ide_drive_t *);
 
-#ifdef CONFIG_PROC_FS
+#ifdef CONFIG_IDE_PROC_FS
 static int proc_idecd_read_capacity
 	(char *page, char **start, off_t off, int count, int *eof, void *data)
 {
@@ -3336,8 +3340,6 @@ static ide_proc_entry_t idecd_proc[] = {
 	{ "capacity", S_IFREG|S_IRUGO, proc_idecd_read_capacity, NULL },
 	{ NULL, 0, NULL, NULL }
 };
-#else
-# define idecd_proc	NULL
 #endif
 
 static ide_driver_t ide_cdrom_driver = {
@@ -3355,7 +3357,9 @@ static ide_driver_t ide_cdrom_driver = {
 	.end_request		= ide_end_request,
 	.error			= __ide_error,
 	.abort			= __ide_abort,
+#ifdef CONFIG_IDE_PROC_FS
 	.proc			= idecd_proc,
+#endif
 };
 
 static int idecd_open(struct inode * inode, struct file * file)
@@ -3517,7 +3521,7 @@ static int ide_cd_probe(ide_drive_t *drive)
 
 	ide_init_disk(g, drive);
 
-	ide_register_subdriver(drive, &ide_cdrom_driver);
+	ide_proc_register_driver(drive, &ide_cdrom_driver);
 
 	kref_init(&info->kref);
 
@@ -3534,7 +3538,7 @@ static int ide_cd_probe(ide_drive_t *drive)
 	g->flags = GENHD_FL_CD | GENHD_FL_REMOVABLE;
 	if (ide_cdrom_setup(drive)) {
 		struct cdrom_device_info *devinfo = &info->devinfo;
-		ide_unregister_subdriver(drive, &ide_cdrom_driver);
+		ide_proc_unregister_driver(drive, &ide_cdrom_driver);
 		kfree(info->buffer);
 		kfree(info->toc);
 		kfree(info->changer_info);
diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index 37aa6ddd970..7fff773f2df 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -559,8 +559,7 @@ static sector_t idedisk_capacity (ide_drive_t *drive)
 	return drive->capacity64 - drive->sect0;
 }
 
-#ifdef CONFIG_PROC_FS
-
+#ifdef CONFIG_IDE_PROC_FS
 static int smart_enable(ide_drive_t *drive)
 {
 	ide_task_t args;
@@ -678,12 +677,7 @@ static ide_proc_entry_t idedisk_proc[] = {
 	{ "smart_thresholds",	S_IFREG|S_IRUSR,	proc_idedisk_read_smart_thresholds,	NULL },
 	{ NULL, 0, NULL, NULL }
 };
-
-#else
-
-#define	idedisk_proc	NULL
-
-#endif	/* CONFIG_PROC_FS */
+#endif	/* CONFIG_IDE_PROC_FS */
 
 static void idedisk_prepare_flush(request_queue_t *q, struct request *rq)
 {
@@ -737,6 +731,9 @@ static int set_multcount(ide_drive_t *drive, int arg)
 {
 	struct request rq;
 
+	if (arg < 0 || arg > drive->id->max_multsect)
+		return -EINVAL;
+
 	if (drive->special.b.set_multmode)
 		return -EBUSY;
 	ide_init_drive_cmd (&rq);
@@ -749,6 +746,9 @@ static int set_multcount(ide_drive_t *drive, int arg)
 
 static int set_nowerr(ide_drive_t *drive, int arg)
 {
+	if (arg < 0 || arg > 1)
+		return -EINVAL;
+
 	if (ide_spin_wait_hwgroup(drive))
 		return -EBUSY;
 	drive->nowerr = arg;
@@ -800,6 +800,9 @@ static int write_cache(ide_drive_t *drive, int arg)
 	ide_task_t args;
 	int err = 1;
 
+	if (arg < 0 || arg > 1)
+		return -EINVAL;
+
 	if (ide_id_has_flush_cache(drive->id)) {
 		memset(&args, 0, sizeof(ide_task_t));
 		args.tfRegister[IDE_FEATURE_OFFSET]	= (arg) ?
@@ -835,6 +838,9 @@ static int set_acoustic (ide_drive_t *drive, int arg)
 {
 	ide_task_t args;
 
+	if (arg < 0 || arg > 254)
+		return -EINVAL;
+
 	memset(&args, 0, sizeof(ide_task_t));
 	args.tfRegister[IDE_FEATURE_OFFSET]	= (arg) ? SETFEATURES_EN_AAM :
 							  SETFEATURES_DIS_AAM;
@@ -855,6 +861,9 @@ static int set_acoustic (ide_drive_t *drive, int arg)
  */
 static int set_lba_addressing(ide_drive_t *drive, int arg)
 {
+	if (arg < 0 || arg > 2)
+		return -EINVAL;
+
 	drive->addressing =  0;
 
 	if (HWIF(drive)->no_lba48)
@@ -866,23 +875,27 @@ static int set_lba_addressing(ide_drive_t *drive, int arg)
 	return 0;
 }
 
+#ifdef CONFIG_IDE_PROC_FS
 static void idedisk_add_settings(ide_drive_t *drive)
 {
 	struct hd_driveid *id = drive->id;
 
-	ide_add_setting(drive,	"bios_cyl",		SETTING_RW,					-1,			-1,			TYPE_INT,	0,	65535,				1,	1,	&drive->bios_cyl,		NULL);
-	ide_add_setting(drive,	"bios_head",		SETTING_RW,					-1,			-1,			TYPE_BYTE,	0,	255,				1,	1,	&drive->bios_head,		NULL);
-	ide_add_setting(drive,	"bios_sect",		SETTING_RW,					-1,			-1,			TYPE_BYTE,	0,	63,				1,	1,	&drive->bios_sect,		NULL);
-	ide_add_setting(drive,	"address",		SETTING_RW,					HDIO_GET_ADDRESS,	HDIO_SET_ADDRESS,	TYPE_INTA,	0,	2,				1,	1,	&drive->addressing,	set_lba_addressing);
-	ide_add_setting(drive,	"bswap",		SETTING_READ,					-1,			-1,			TYPE_BYTE,	0,	1,				1,	1,	&drive->bswap,			NULL);
-	ide_add_setting(drive,	"multcount",		id ? SETTING_RW : SETTING_READ,			HDIO_GET_MULTCOUNT,	HDIO_SET_MULTCOUNT,	TYPE_BYTE,	0,	id ? id->max_multsect : 0,	1,	1,	&drive->mult_count,		set_multcount);
-	ide_add_setting(drive,	"nowerr",		SETTING_RW,					HDIO_GET_NOWERR,	HDIO_SET_NOWERR,	TYPE_BYTE,	0,	1,				1,	1,	&drive->nowerr,			set_nowerr);
-	ide_add_setting(drive,	"lun",			SETTING_RW,					-1,			-1,			TYPE_INT,	0,	7,				1,	1,	&drive->lun,			NULL);
-	ide_add_setting(drive,	"wcache",		SETTING_RW,					HDIO_GET_WCACHE,	HDIO_SET_WCACHE,	TYPE_BYTE,	0,	1,				1,	1,	&drive->wcache,			write_cache);
-	ide_add_setting(drive,	"acoustic",		SETTING_RW,					HDIO_GET_ACOUSTIC,	HDIO_SET_ACOUSTIC,	TYPE_BYTE,	0,	254,				1,	1,	&drive->acoustic,		set_acoustic);
- 	ide_add_setting(drive,	"failures",		SETTING_RW,					-1,			-1,			TYPE_INT,	0,	65535,				1,	1,	&drive->failures,		NULL);
- 	ide_add_setting(drive,	"max_failures",		SETTING_RW,					-1,			-1,			TYPE_INT,	0,	65535,				1,	1,	&drive->max_failures,		NULL);
+	ide_add_setting(drive,	"bios_cyl",	SETTING_RW,	TYPE_INT,	0,	65535,			1,	1,	&drive->bios_cyl,	NULL);
+	ide_add_setting(drive,	"bios_head",	SETTING_RW,	TYPE_BYTE,	0,	255,			1,	1,	&drive->bios_head,	NULL);
+	ide_add_setting(drive,	"bios_sect",	SETTING_RW,	TYPE_BYTE,	0,	63,			1,	1,	&drive->bios_sect,	NULL);
+	ide_add_setting(drive,	"address",	SETTING_RW,	TYPE_BYTE,	0,	2,			1,	1,	&drive->addressing,	set_lba_addressing);
+	ide_add_setting(drive,	"bswap",	SETTING_READ,	TYPE_BYTE,	0,	1,			1,	1,	&drive->bswap,		NULL);
+	ide_add_setting(drive,	"multcount",	SETTING_RW,	TYPE_BYTE,	0,	id->max_multsect,	1,	1,	&drive->mult_count,	set_multcount);
+	ide_add_setting(drive,	"nowerr",	SETTING_RW,	TYPE_BYTE,	0,	1,			1,	1,	&drive->nowerr,		set_nowerr);
+	ide_add_setting(drive,	"lun",		SETTING_RW,	TYPE_INT,	0,	7,			1,	1,	&drive->lun,		NULL);
+	ide_add_setting(drive,	"wcache",	SETTING_RW,	TYPE_BYTE,	0,	1,			1,	1,	&drive->wcache,		write_cache);
+	ide_add_setting(drive,	"acoustic",	SETTING_RW,	TYPE_BYTE,	0,	254,			1,	1,	&drive->acoustic,	set_acoustic);
+ 	ide_add_setting(drive,	"failures",	SETTING_RW,	TYPE_INT,	0,	65535,			1,	1,	&drive->failures,	NULL);
+ 	ide_add_setting(drive,	"max_failures",	SETTING_RW,	TYPE_INT,	0,	65535,			1,	1,	&drive->max_failures,	NULL);
 }
+#else
+static inline void idedisk_add_settings(ide_drive_t *drive) { ; }
+#endif
 
 static void idedisk_setup (ide_drive_t *drive)
 {
@@ -1001,7 +1014,7 @@ static void ide_disk_remove(ide_drive_t *drive)
 	struct ide_disk_obj *idkp = drive->driver_data;
 	struct gendisk *g = idkp->disk;
 
-	ide_unregister_subdriver(drive, idkp->driver);
+	ide_proc_unregister_driver(drive, idkp->driver);
 
 	del_gendisk(g);
 
@@ -1066,7 +1079,9 @@ static ide_driver_t idedisk_driver = {
 	.end_request		= ide_end_request,
 	.error			= __ide_error,
 	.abort			= __ide_abort,
+#ifdef CONFIG_IDE_PROC_FS
 	.proc			= idedisk_proc,
+#endif
 };
 
 static int idedisk_open(struct inode *inode, struct file *filp)
@@ -1140,9 +1155,49 @@ static int idedisk_getgeo(struct block_device *bdev, struct hd_geometry *geo)
 static int idedisk_ioctl(struct inode *inode, struct file *file,
 			unsigned int cmd, unsigned long arg)
 {
+	unsigned long flags;
 	struct block_device *bdev = inode->i_bdev;
 	struct ide_disk_obj *idkp = ide_disk_g(bdev->bd_disk);
-	return generic_ide_ioctl(idkp->drive, file, bdev, cmd, arg);
+	ide_drive_t *drive = idkp->drive;
+	int err, (*setfunc)(ide_drive_t *, int);
+	u8 *val;
+
+	switch (cmd) {
+	case HDIO_GET_ADDRESS:	 val = &drive->addressing;	goto read_val;
+	case HDIO_GET_MULTCOUNT: val = &drive->mult_count;	goto read_val;
+	case HDIO_GET_NOWERR:	 val = &drive->nowerr;		goto read_val;
+	case HDIO_GET_WCACHE:	 val = &drive->wcache;		goto read_val;
+	case HDIO_GET_ACOUSTIC:	 val = &drive->acoustic;	goto read_val;
+	case HDIO_SET_ADDRESS:	 setfunc = set_lba_addressing;	goto set_val;
+	case HDIO_SET_MULTCOUNT: setfunc = set_multcount;	goto set_val;
+	case HDIO_SET_NOWERR:	 setfunc = set_nowerr;		goto set_val;
+	case HDIO_SET_WCACHE:	 setfunc = write_cache;		goto set_val;
+	case HDIO_SET_ACOUSTIC:	 setfunc = set_acoustic;	goto set_val;
+	}
+
+	return generic_ide_ioctl(drive, file, bdev, cmd, arg);
+
+read_val:
+	down(&ide_setting_sem);
+	spin_lock_irqsave(&ide_lock, flags);
+	err = *val;
+	spin_unlock_irqrestore(&ide_lock, flags);
+	up(&ide_setting_sem);
+	return err >= 0 ? put_user(err, (long __user *)arg) : err;
+
+set_val:
+	if (bdev != bdev->bd_contains)
+		err = -EINVAL;
+	else {
+		if (!capable(CAP_SYS_ADMIN))
+			err = -EACCES;
+		else {
+			down(&ide_setting_sem);
+			err = setfunc(drive, arg);
+			up(&ide_setting_sem);
+		}
+	}
+	return err;
 }
 
 static int idedisk_media_changed(struct gendisk *disk)
@@ -1202,7 +1257,7 @@ static int ide_disk_probe(ide_drive_t *drive)
 
 	ide_init_disk(g, drive);
 
-	ide_register_subdriver(drive, &idedisk_driver);
+	ide_proc_register_driver(drive, &idedisk_driver);
 
 	kref_init(&idkp->kref);
 
diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index fd213088b06..5fe85191d49 100644
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -705,6 +705,100 @@ int ide_use_dma(ide_drive_t *drive)
 
 EXPORT_SYMBOL_GPL(ide_use_dma);
 
+static const u8 xfer_mode_bases[] = {
+	XFER_UDMA_0,
+	XFER_MW_DMA_0,
+	XFER_SW_DMA_0,
+};
+
+static unsigned int ide_get_mode_mask(ide_drive_t *drive, u8 base)
+{
+	struct hd_driveid *id = drive->id;
+	ide_hwif_t *hwif = drive->hwif;
+	unsigned int mask = 0;
+
+	switch(base) {
+	case XFER_UDMA_0:
+		if ((id->field_valid & 4) == 0)
+			break;
+
+		mask = id->dma_ultra & hwif->ultra_mask;
+
+		if (hwif->udma_filter)
+			mask &= hwif->udma_filter(drive);
+
+		if ((mask & 0x78) && (eighty_ninty_three(drive) == 0))
+			mask &= 0x07;
+		break;
+	case XFER_MW_DMA_0:
+		mask = id->dma_mword & hwif->mwdma_mask;
+		break;
+	case XFER_SW_DMA_0:
+		mask = id->dma_1word & hwif->swdma_mask;
+		break;
+	default:
+		BUG();
+		break;
+	}
+
+	return mask;
+}
+
+/**
+ *	ide_max_dma_mode	-	compute DMA speed
+ *	@drive: IDE device
+ *
+ *	Checks the drive capabilities and returns the speed to use
+ *	for the DMA transfer.  Returns 0 if the drive is incapable
+ *	of DMA transfers.
+ */
+
+u8 ide_max_dma_mode(ide_drive_t *drive)
+{
+	ide_hwif_t *hwif = drive->hwif;
+	unsigned int mask;
+	int x, i;
+	u8 mode = 0;
+
+	if (drive->media != ide_disk && hwif->atapi_dma == 0)
+		return 0;
+
+	for (i = 0; i < ARRAY_SIZE(xfer_mode_bases); i++) {
+		mask = ide_get_mode_mask(drive, xfer_mode_bases[i]);
+		x = fls(mask) - 1;
+		if (x >= 0) {
+			mode = xfer_mode_bases[i] + x;
+			break;
+		}
+	}
+
+	printk(KERN_DEBUG "%s: selected mode 0x%x\n", drive->name, mode);
+
+	return mode;
+}
+
+EXPORT_SYMBOL_GPL(ide_max_dma_mode);
+
+int ide_tune_dma(ide_drive_t *drive)
+{
+	u8 speed;
+
+	/* TODO: use only ide_max_dma_mode() */
+	if (!ide_use_dma(drive))
+		return 0;
+
+	speed = ide_max_dma_mode(drive);
+
+	if (!speed)
+		return 0;
+
+	drive->hwif->speedproc(drive, speed);
+
+	return ide_dma_enable(drive);
+}
+
+EXPORT_SYMBOL_GPL(ide_tune_dma);
+
 void ide_dma_verbose(ide_drive_t *drive)
 {
 	struct hd_driveid *id	= drive->id;
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index 57cd21c5b2c..f429be88c4f 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -1811,18 +1811,22 @@ static int idefloppy_identify_device (ide_drive_t *drive,struct hd_driveid *id)
 	return 0;
 }
 
+#ifdef CONFIG_IDE_PROC_FS
 static void idefloppy_add_settings(ide_drive_t *drive)
 {
 	idefloppy_floppy_t *floppy = drive->driver_data;
 
 /*
- *			drive	setting name	read/write	ioctl	ioctl		data type	min	max	mul_factor	div_factor	data pointer		set function
+ *			drive	setting name	read/write	data type	min	max	mul_factor	div_factor	data pointer		set function
  */
-	ide_add_setting(drive,	"bios_cyl",		SETTING_RW,					-1,			-1,			TYPE_INT,	0,	1023,				1,	1,	&drive->bios_cyl,		NULL);
-	ide_add_setting(drive,	"bios_head",		SETTING_RW,					-