Merge pobox.com:/spare/repo/linux-2.6

into pobox.com:/spare/repo/libata-2.6

drivers/scsi/ata_piix.c

@@ -65,10 +65,8 @@ static int piix_init_one (struct pci_dev *pdev,
 
 static void piix_pata_phy_reset(struct ata_port *ap);
 static void piix_sata_phy_reset(struct ata_port *ap);
-static void piix_set_piomode (struct ata_port *ap, struct ata_device *adev,
-			      unsigned int pio);
-static void piix_set_udmamode (struct ata_port *ap, struct ata_device *adev,
-			       unsigned int udma);
+static void piix_set_piomode (struct ata_port *ap, struct ata_device *adev);
+static void piix_set_dmamode (struct ata_port *ap, struct ata_device *adev);
 
 static unsigned int in_module_init = 1;
 
@@ -126,7 +124,7 @@ static Scsi_Host_Template piix_sht = {
 static struct ata_port_operations piix_pata_ops = {
 	.port_disable		= ata_port_disable,
 	.set_piomode		= piix_set_piomode,
-	.set_udmamode		= piix_set_udmamode,
+	.set_dmamode		= piix_set_dmamode,
 
 	.tf_load		= ata_tf_load_pio,
 	.tf_read		= ata_tf_read_pio,
@@ -151,8 +149,6 @@ static struct ata_port_operations piix_pata_ops = {
 
 static struct ata_port_operations piix_sata_ops = {
 	.port_disable		= ata_port_disable,
-	.set_piomode		= piix_set_piomode,
-	.set_udmamode		= piix_set_udmamode,
 
 	.tf_load		= ata_tf_load_pio,
 	.tf_read		= ata_tf_read_pio,
@@ -181,7 +177,12 @@ static struct ata_port_info piix_port_info[] = {
 		.sht		= &piix_sht,
 		.host_flags	= ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST |
 				  PIIX_FLAG_CHECKINTR,
-		.pio_mask	= 0x03,	/* pio3-4 */
+		.pio_mask	= 0x1f,	/* pio0-4 */
+#if 0
+		.mwdma_mask	= 0x06, /* mwdma1-2 */
+#else
+		.mwdma_mask	= 0x00, /* mwdma broken */
+#endif
 		.udma_mask	= ATA_UDMA_MASK_40C, /* FIXME: cbl det */
 		.port_ops	= &piix_pata_ops,
 	},
@@ -191,8 +192,9 @@ static struct ata_port_info piix_port_info[] = {
 		.sht		= &piix_sht,
 		.host_flags	= ATA_FLAG_SATA | ATA_FLAG_SRST |
 				  PIIX_FLAG_COMBINED | PIIX_FLAG_CHECKINTR,
-		.pio_mask	= 0x03,	/* pio3-4 */
-		.udma_mask	= 0x7f,	/* udma0-6 ; FIXME */
+		.pio_mask	= 0x1f,	/* pio0-4 */
+		.mwdma_mask	= 0x07, /* mwdma0-2 */
+		.udma_mask	= 0x7f,	/* udma0-6 */
 		.port_ops	= &piix_sata_ops,
 	},
 
@@ -200,7 +202,12 @@ static struct ata_port_info piix_port_info[] = {
 	{
 		.sht		= &piix_sht,
 		.host_flags	= ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
-		.pio_mask	= 0x03, /* pio3-4 */
+		.pio_mask	= 0x1f,	/* pio0-4 */
+#if 0
+		.mwdma_mask	= 0x06, /* mwdma1-2 */
+#else
+		.mwdma_mask	= 0x00, /* mwdma broken */
+#endif
 		.udma_mask	= ATA_UDMA_MASK_40C, /* FIXME: cbl det */
 		.port_ops	= &piix_pata_ops,
 	},
@@ -211,8 +218,9 @@ static struct ata_port_info piix_port_info[] = {
 		.host_flags	= ATA_FLAG_SATA | ATA_FLAG_SRST |
 				  PIIX_FLAG_COMBINED | PIIX_FLAG_CHECKINTR |
 				  ATA_FLAG_SLAVE_POSS,
-		.pio_mask	= 0x03,	/* pio3-4 */
-		.udma_mask	= 0x7f,	/* udma0-6 ; FIXME */
+		.pio_mask	= 0x1f,	/* pio0-4 */
+		.mwdma_mask	= 0x07, /* mwdma0-2 */
+		.udma_mask	= 0x7f,	/* udma0-6 */
 		.port_ops	= &piix_sata_ops,
 	},
 };
@@ -368,9 +376,9 @@ static void piix_sata_phy_reset(struct ata_port *ap)
  *	None (inherited from caller).
  */
 
-static void piix_set_piomode (struct ata_port *ap, struct ata_device *adev,
-			      unsigned int pio)
+static void piix_set_piomode (struct ata_port *ap, struct ata_device *adev)
 {
+	unsigned int pio	= adev->pio_mode;
 	struct pci_dev *dev	= ap->host_set->pdev;
 	unsigned int is_slave	= (adev->flags & ATA_DFLAG_MASTER) ? 0 : 1;
 	unsigned int master_port= ap->port_no ? 0x42 : 0x40;
@@ -409,7 +417,7 @@ static void piix_set_piomode (struct ata_port *ap, struct ata_device *adev,
 }
 
 /**
- *	piix_set_udmamode - Initialize host controller PATA PIO timings
+ *	piix_set_dmamode - Initialize host controller PATA PIO timings
  *	@ap: Port whose timings we are configuring
  *	@adev: um
  *	@udma: udma mode, 0 - 6
@@ -420,9 +428,9 @@ static void piix_set_piomode (struct ata_port *ap, struct ata_device *adev,
  *	None (inherited from caller).
  */
 
-static void piix_set_udmamode (struct ata_port *ap, struct ata_device *adev,
-			      unsigned int udma)
+static void piix_set_dmamode (struct ata_port *ap, struct ata_device *adev)
 {
+	unsigned int udma	= adev->dma_mode; /* FIXME: MWDMA too */
 	struct pci_dev *dev	= ap->host_set->pdev;
 	u8 maslave		= ap->port_no ? 0x42 : 0x40;
 	u8 speed		= udma;
@@ -452,25 +460,38 @@ static void piix_set_udmamode (struct ata_port *ap, struct ata_device *adev,
 		case XFER_UDMA_3:
 		case XFER_UDMA_1:	u_speed = 1 << (drive_dn * 4); break;
 		case XFER_UDMA_0:	u_speed = 0 << (drive_dn * 4); break;
+		case XFER_MW_DMA_2:
+		case XFER_MW_DMA_1:	break;
 		default:
 			BUG();
 			return;
 	}
 
-	if (!(reg48 & u_flag))
-		pci_write_config_byte(dev, 0x48, reg48 | u_flag);
-	if (speed == XFER_UDMA_5) {
-		pci_write_config_byte(dev, 0x55, (u8) reg55|w_flag);
+	if (speed >= XFER_UDMA_0) {
+		if (!(reg48 & u_flag))
+			pci_write_config_byte(dev, 0x48, reg48 | u_flag);
+		if (speed == XFER_UDMA_5) {
+			pci_write_config_byte(dev, 0x55, (u8) reg55|w_flag);
+		} else {
+			pci_write_config_byte(dev, 0x55, (u8) reg55 & ~w_flag);
+		}
+		if ((reg4a & a_speed) != u_speed)
+			pci_write_config_word(dev, 0x4a, (reg4a & ~a_speed) | u_speed);
+		if (speed > XFER_UDMA_2) {
+			if (!(reg54 & v_flag))
+				pci_write_config_byte(dev, 0x54, reg54 | v_flag);
+		} else
+			pci_write_config_byte(dev, 0x54, reg54 & ~v_flag);
 	} else {
-		pci_write_config_byte(dev, 0x55, (u8) reg55 & ~w_flag);
+		if (reg48 & u_flag)
+			pci_write_config_byte(dev, 0x48, reg48 & ~u_flag);
+		if (reg4a & a_speed)
+			pci_write_config_word(dev, 0x4a, reg4a & ~a_speed);
+		if (reg54 & v_flag)
+			pci_write_config_byte(dev, 0x54, reg54 & ~v_flag);
+		if (reg55 & w_flag)
+			pci_write_config_byte(dev, 0x55, (u8) reg55 & ~w_flag);
 	}
-	if ((reg4a & a_speed) != u_speed)
-		pci_write_config_word(dev, 0x4a, (reg4a & ~a_speed) | u_speed);
-	if (speed > XFER_UDMA_2) {
-		if (!(reg54 & v_flag))
-			pci_write_config_byte(dev, 0x54, reg54 | v_flag);
-	} else
-		pci_write_config_byte(dev, 0x54, reg54 & ~v_flag);
 }
 
 /* move to PCI layer, integrate w/ MSI stuff */

drivers/scsi/sata_nv.c

@@ -39,6 +39,7 @@
 
 #define NV_PORTS			2
 #define NV_PIO_MASK			0x1f
+#define NV_MWDMA_MASK			0x07
 #define NV_UDMA_MASK			0x7f
 #define NV_PORT0_BMDMA_REG_OFFSET	0x00
 #define NV_PORT1_BMDMA_REG_OFFSET	0x08
@@ -289,6 +290,7 @@ static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 	probe_ent->irq = pdev->irq;
 	probe_ent->irq_flags = SA_SHIRQ;
 	probe_ent->pio_mask = NV_PIO_MASK;
+	probe_ent->mwdma_mask = NV_MWDMA_MASK;
 	probe_ent->udma_mask = NV_UDMA_MASK;
 
 	probe_ent->port[0].cmd_addr = pci_resource_start(pdev, 0);

drivers/scsi/sata_promise.c

@@ -130,7 +130,8 @@ static struct ata_port_info pdc_port_info[] = {
 		.sht		= &pdc_sata_sht,
 		.host_flags	= ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
 				  ATA_FLAG_SRST | ATA_FLAG_MMIO,
-		.pio_mask	= 0x03, /* pio3-4 */
+		.pio_mask	= 0x1f, /* pio0-4 */
+		.mwdma_mask	= 0x07, /* mwdma0-2 */
 		.udma_mask	= 0x7f, /* udma0-6 ; FIXME */
 		.port_ops	= &pdc_sata_ops,
 	},
@@ -140,7 +141,8 @@ static struct ata_port_info pdc_port_info[] = {
 		.sht		= &pdc_sata_sht,
 		.host_flags	= ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
 				  ATA_FLAG_SRST | ATA_FLAG_MMIO,
-		.pio_mask	= 0x03, /* pio3-4 */
+		.pio_mask	= 0x1f, /* pio0-4 */
+		.mwdma_mask	= 0x07, /* mwdma0-2 */
 		.udma_mask	= 0x7f, /* udma0-6 ; FIXME */
 		.port_ops	= &pdc_sata_ops,
 	},
@@ -601,6 +603,7 @@ static int pdc_sata_init_one (struct pci_dev *pdev, const struct pci_device_id *
 	probe_ent->sht		= pdc_port_info[board_idx].sht;
 	probe_ent->host_flags	= pdc_port_info[board_idx].host_flags;
 	probe_ent->pio_mask	= pdc_port_info[board_idx].pio_mask;
+	probe_ent->mwdma_mask	= pdc_port_info[board_idx].mwdma_mask;
 	probe_ent->udma_mask	= pdc_port_info[board_idx].udma_mask;
 	probe_ent->port_ops	= pdc_port_info[board_idx].port_ops;
 

drivers/scsi/sata_sil.c

@@ -149,7 +149,8 @@ static struct ata_port_info sil_port_info[] = {
 		.sht		= &sil_sht,
 		.host_flags	= ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
 				  ATA_FLAG_SRST | ATA_FLAG_MMIO,
-		.pio_mask	= 0x03,			/* pio3-4 */
+		.pio_mask	= 0x1f,			/* pio0-4 */
+		.mwdma_mask	= 0x07,			/* mwdma0-2 */
 		.udma_mask	= 0x3f,			/* udma0-5 */
 		.port_ops	= &sil_ops,
 	}, /* sil_3114 */
@@ -157,7 +158,8 @@ static struct ata_port_info sil_port_info[] = {
 		.sht		= &sil_sht,
 		.host_flags	= ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
 				  ATA_FLAG_SRST | ATA_FLAG_MMIO,
-		.pio_mask	= 0x03,			/* pio3-4 */
+		.pio_mask	= 0x1f,			/* pio0-4 */
+		.mwdma_mask	= 0x07,			/* mwdma0-2 */
 		.udma_mask	= 0x3f,			/* udma0-5 */
 		.port_ops	= &sil_ops,
 	},
@@ -363,6 +365,7 @@ static int sil_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 	probe_ent->sht = sil_port_info[ent->driver_data].sht;
 	probe_ent->n_ports = (ent->driver_data == sil_3114) ? 4 : 2;
 	probe_ent->pio_mask = sil_port_info[ent->driver_data].pio_mask;
+	probe_ent->mwdma_mask = sil_port_info[ent->driver_data].mwdma_mask;
 	probe_ent->udma_mask = sil_port_info[ent->driver_data].udma_mask;
        	probe_ent->irq = pdev->irq;
        	probe_ent->irq_flags = SA_SHIRQ;

drivers/scsi/sata_sis.c

@@ -230,7 +230,8 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 		probe_ent->host_flags |= SIS_FLAG_CFGSCR;
 	}
 
-	probe_ent->pio_mask = 0x03;
+	probe_ent->pio_mask = 0x1f;
+	probe_ent->mwdma_mask = 0x7;
 	probe_ent->udma_mask = 0x7f;
 	probe_ent->port_ops = &sis_ops;
 

drivers/scsi/sata_svw.c

@@ -343,6 +343,7 @@ static int k2_sata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
 	 * if we don't fill these
 	 */
 	probe_ent->pio_mask = 0x1f;
+	probe_ent->mwdma_mask = 0x7;
 	probe_ent->udma_mask = 0x7f;
 
 	/* We have 4 ports per PCI function */

drivers/scsi/sata_sx4.c

@@ -217,7 +217,8 @@ static struct ata_port_info pdc_port_info[] = {
 		.sht		= &pdc_sata_sht,
 		.host_flags	= ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
 				  ATA_FLAG_SRST | ATA_FLAG_MMIO,
-		.pio_mask	= 0x03, /* pio3-4 */
+		.pio_mask	= 0x1f, /* pio0-4 */
+		.mwdma_mask	= 0x07, /* mwdma0-2 */
 		.udma_mask	= 0x7f, /* udma0-6 ; FIXME */
 		.port_ops	= &pdc_20621_ops,
 	},
@@ -1384,6 +1385,7 @@ static int pdc_sata_init_one (struct pci_dev *pdev, const struct pci_device_id *
 	probe_ent->sht		= pdc_port_info[board_idx].sht;
 	probe_ent->host_flags	= pdc_port_info[board_idx].host_flags;
 	probe_ent->pio_mask	= pdc_port_info[board_idx].pio_mask;
+	probe_ent->mwdma_mask	= pdc_port_info[board_idx].mwdma_mask;
 	probe_ent->udma_mask	= pdc_port_info[board_idx].udma_mask;
 	probe_ent->port_ops	= pdc_port_info[board_idx].port_ops;
 

drivers/scsi/sata_via.c

@@ -214,6 +214,7 @@ static int svia_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 	probe_ent->irq = pdev->irq;
 	probe_ent->irq_flags = SA_SHIRQ;
 	probe_ent->pio_mask = 0x1f;
+	probe_ent->mwdma_mask = 0x07;
 	probe_ent->udma_mask = 0x7f;
 
 	probe_ent->port[0].cmd_addr = pci_resource_start(pdev, 0);

drivers/scsi/sata_vsc.c

@@ -320,6 +320,7 @@ static int __devinit vsc_sata_init_one (struct pci_dev *pdev, const struct pci_d
 	 * if we don't fill these
 	 */
 	probe_ent->pio_mask = 0x1f;
+	probe_ent->mwdma_mask = 0x07;
 	probe_ent->udma_mask = 0x7f;
 
 	/* We have 4 ports per PCI function */

include/linux/ata.h

@@ -42,6 +42,7 @@ enum {
 	ATA_ID_SERNO_OFS	= 10,
 	ATA_ID_MAJOR_VER	= 80,
 	ATA_ID_PIO_MODES	= 64,
+	ATA_ID_MWDMA_MODES	= 63,
 	ATA_ID_UDMA_MODES	= 88,
 	ATA_ID_PIO4		= (1 << 1),
 
@@ -133,8 +134,14 @@ enum {
 	XFER_UDMA_2		= 0x42,
 	XFER_UDMA_1		= 0x41,
 	XFER_UDMA_0		= 0x40,
+	XFER_MW_DMA_2		= 0x22,
+	XFER_MW_DMA_1		= 0x21,
+	XFER_MW_DMA_0		= 0x20,
 	XFER_PIO_4		= 0x0C,
 	XFER_PIO_3		= 0x0B,
+	XFER_PIO_2		= 0x0A,
+	XFER_PIO_1		= 0x09,
+	XFER_PIO_0		= 0x08,
 
 	/* ATAPI stuff */
 	ATAPI_PKT_DMA		= (1 << 0),

include/linux/libata.h

@@ -32,7 +32,6 @@
 /*
  * compile-time options
  */
-#undef ATA_FORCE_PIO		/* do not configure or use DMA */
 #undef ATA_DEBUG		/* debugging output */
 #undef ATA_VERBOSE_DEBUG	/* yet more debugging output */
 #undef ATA_IRQ_TRAP		/* define to ack screaming irqs */
@@ -140,6 +139,13 @@ enum {
 	PORT_UNKNOWN		= 0,
 	PORT_ENABLED		= 1,
 	PORT_DISABLED		= 2,
+
+	/* encoding various smaller bitmaps into a single
+	 * unsigned long bitmap
+	 */
+	ATA_SHIFT_UDMA		= 0,
+	ATA_SHIFT_MWDMA		= 8,
+	ATA_SHIFT_PIO		= 11,
 };
 
 enum pio_task_states {
@@ -188,6 +194,7 @@ struct ata_probe_ent {
 	struct ata_ioports	port[ATA_MAX_PORTS];
 	unsigned int		n_ports;
 	unsigned int		pio_mask;
+	unsigned int		mwdma_mask;
 	unsigned int		udma_mask;
 	unsigned int		legacy_mode;
 	unsigned long		irq;
@@ -251,8 +258,10 @@ struct ata_device {
 	unsigned int		class;		/* ATA_DEV_xxx */
 	unsigned int		devno;		/* 0 or 1 */
 	u16			id[ATA_ID_WORDS]; /* IDENTIFY xxx DEVICE data */
-	unsigned int		pio_mode;
-	unsigned int		udma_mode;
+	u8			pio_mode;
+	u8			dma_mode;
+	u8			xfer_mode;
+	unsigned int		xfer_shift;	/* ATA_SHIFT_xxx */
 
 	/* cache info about current transfer mode */
 	u8			xfer_protocol;	/* taskfile xfer protocol */
@@ -277,6 +286,7 @@ struct ata_port {
 	unsigned int		bus_state;
 	unsigned int		port_state;
 	unsigned int		pio_mask;
+	unsigned int		mwdma_mask;
 	unsigned int		udma_mask;
 	unsigned int		cbl;	/* cable type; ATA_CBL_xxx */
 
@@ -303,10 +313,8 @@ struct ata_port_operations {
 
 	void (*dev_config) (struct ata_port *, struct ata_device *);
 
-	void (*set_piomode) (struct ata_port *, struct ata_device *,
-			     unsigned int);
-	void (*set_udmamode) (struct ata_port *, struct ata_device *,
-			     unsigned int);
+	void (*set_piomode) (struct ata_port *, struct ata_device *);
+	void (*set_dmamode) (struct ata_port *, struct ata_device *);
 
 	void (*tf_load) (struct ata_port *ap, struct ata_taskfile *tf);
 	void (*tf_read) (struct ata_port *ap, struct ata_taskfile *tf);
@@ -342,6 +350,7 @@ struct ata_port_info {
 	Scsi_Host_Template	*sht;
 	unsigned long		host_flags;
 	unsigned long		pio_mask;
+	unsigned long		mwdma_mask;
 	unsigned long		udma_mask;
 	struct ata_port_operations	*port_ops;
 };