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

* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: (46 commits)
  ide: constify struct ide_dma_ops
  ide: add struct ide_dma_ops (take 3)
  ide: add IDE_HFLAG_SERIALIZE_DMA host flag
  sl82c105: check bridge revision in sl82c105_init_one()
  au1xxx-ide: use ->init_dma method
  palm_bk3710: use ->init_dma method
  sgiioc4: use ->init_dma method
  icside: use ->init_dma method
  ide-pmac: use ->init_dma method
  ide: do complete DMA setup in ->init_dma method (take 2)
  au1xxx-ide: fix MWDMA support
  ide: cleanup ide_setup_dma()
  ide: factor out setting PCI bus-mastering from ide_hwif_setup_dma()
  ide: export ide_allocate_dma_engine()
  ide: move ide_setup_dma() call out from ->init_dma method
  alim15x3: skip DMA initialization completely on revs < 0x20
  pdc202xx_old: remove init_dma_pdc202xx()
  ide: don't display "BIOS" settings in ide_setup_dma()
  ide: remove ->cds field from ide_hwif_t (take 2)
  ide: remove ide_dma_iobase()
  ...

Documentation/mips/AU1xxx_IDE.README

@@ -46,8 +46,6 @@ Two files are introduced:
 
   a) 'include/asm-mips/mach-au1x00/au1xxx_ide.h'
      containes : struct _auide_hwif
-                 struct drive_list_entry dma_white_list
-                 struct drive_list_entry dma_black_list
                  timing parameters for PIO mode 0/1/2/3/4
                  timing parameters for MWDMA 0/1/2
 
@@ -63,12 +61,6 @@ Four configs variables are introduced:
   CONFIG_BLK_DEV_IDE_AU1XXX_SEQTS_PER_RQ - maximum transfer size
                                            per descriptor
 
-If MWDMA is enabled and the connected hard disc is not on the white list, the
-kernel switches to a "safe mwdma mode" at boot time. In this mode the IDE
-performance is substantial slower then in full speed mwdma. In this case
-please add your hard disc to the white list (follow instruction from 'ADD NEW
-HARD DISC TO WHITE OR BLACK LIST' section).
-
 
 SUPPORTED IDE MODES
 -------------------
@@ -120,44 +112,6 @@ CONFIG_IDEDMA_AUTO=y
 Also undefine 'IDE_AU1XXX_BURSTMODE' in 'drivers/ide/mips/au1xxx-ide.c' to
 disable the burst support on DBDMA controller.
 
-ADD NEW HARD DISC TO WHITE OR BLACK LIST
-----------------------------------------
-
-Step 1 : detect the model name of your hard disc
-
-  a) connect your hard disc to the AU1XXX
-
-  b) boot your kernel and get the hard disc model.
-
-     Example boot log:
-
-     --snipped--
-     Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
-     ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx
-     Au1xxx IDE(builtin) configured for MWDMA2
-     Probing IDE interface ide0...
-     hda: Maxtor 6E040L0, ATA DISK drive
-     ide0 at 0xac800000-0xac800007,0xac8001c0 on irq 64
-     hda: max request size: 64KiB
-     hda: 80293248 sectors (41110 MB) w/2048KiB Cache, CHS=65535/16/63, (U)DMA
-     --snipped--
-
-     In this example 'Maxtor 6E040L0'.
-
-Step  2 : edit 'include/asm-mips/mach-au1x00/au1xxx_ide.h'
-
-  Add your hard disc to the dma_white_list or dma_black_list structur.
-
-Step 3 : Recompile the kernel
-
-  Enable MWDMA support in the kernel configuration. Recompile the kernel and
-  reboot.
-
-Step 4 : Tests
-
-  If you have add a hard disc to the white list, please run some stress tests
-  for verification.
-
 
 ACKNOWLEDGMENTS
 ---------------

drivers/ide/arm/bast-ide.c

@@ -55,8 +55,7 @@ static int __init bastide_register(unsigned int base, unsigned int aux, int irq)
 		ide_init_port_data(hwif, i);
 
 	ide_init_port_hw(hwif, &hw);
-	hwif->mmio = 1;
-	hwif->quirkproc = NULL;
+	hwif->port_ops = NULL;
 
 	idx[0] = i;
 

drivers/ide/arm/icside.c

@@ -191,6 +191,10 @@ static void icside_maskproc(ide_drive_t *drive, int mask)
 	local_irq_restore(flags);
 }
 
+static const struct ide_port_ops icside_v6_no_dma_port_ops = {
+	.maskproc		= icside_maskproc,
+};
+
 #ifdef CONFIG_BLK_DEV_IDEDMA_ICS
 /*
  * SG-DMA support.
@@ -266,6 +270,11 @@ static void icside_set_dma_mode(ide_drive_t *drive, const u8 xfer_mode)
 		ide_xfer_verbose(xfer_mode), 2000 / drive->drive_data);
 }
 
+static const struct ide_port_ops icside_v6_port_ops = {
+	.set_dma_mode		= icside_set_dma_mode,
+	.maskproc		= icside_maskproc,
+};
+
 static void icside_dma_host_set(ide_drive_t *drive, int on)
 {
 }
@@ -375,25 +384,33 @@ static void icside_dma_lost_irq(ide_drive_t *drive)
 	printk(KERN_ERR "%s: IRQ lost\n", drive->name);
 }
 
-static void icside_dma_init(ide_hwif_t *hwif)
+static int icside_dma_init(ide_hwif_t *hwif, const struct ide_port_info *d)
 {
 	hwif->dmatable_cpu	= NULL;
 	hwif->dmatable_dma	= 0;
-	hwif->set_dma_mode	= icside_set_dma_mode;
-
-	hwif->dma_host_set	= icside_dma_host_set;
-	hwif->dma_setup		= icside_dma_setup;
-	hwif->dma_exec_cmd	= icside_dma_exec_cmd;
-	hwif->dma_start		= icside_dma_start;
-	hwif->ide_dma_end	= icside_dma_end;
-	hwif->ide_dma_test_irq	= icside_dma_test_irq;
-	hwif->dma_timeout	= icside_dma_timeout;
-	hwif->dma_lost_irq	= icside_dma_lost_irq;
+
+	return 0;
 }
+
+static const struct ide_dma_ops icside_v6_dma_ops = {
+	.dma_host_set		= icside_dma_host_set,
+	.dma_setup		= icside_dma_setup,
+	.dma_exec_cmd		= icside_dma_exec_cmd,
+	.dma_start		= icside_dma_start,
+	.dma_end		= icside_dma_end,
+	.dma_test_irq		= icside_dma_test_irq,
+	.dma_timeout		= icside_dma_timeout,
+	.dma_lost_irq		= icside_dma_lost_irq,
+};
 #else
-#define icside_dma_init(hwif)	(0)
+#define icside_v6_dma_ops NULL
 #endif
 
+static int icside_dma_off_init(ide_hwif_t *hwif, const struct ide_port_info *d)
+{
+	return -EOPNOTSUPP;
+}
+
 static ide_hwif_t *
 icside_setup(void __iomem *base, struct cardinfo *info, struct expansion_card *ec)
 {
@@ -408,15 +425,13 @@ icside_setup(void __iomem *base, struct cardinfo *info, struct expansion_card *e
 		 * Ensure we're using MMIO
 		 */
 		default_hwif_mmiops(hwif);
-		hwif->mmio = 1;
 
 		for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
 			hwif->io_ports[i] = port;
 			port += 1 << info->stepping;
 		}
 		hwif->io_ports[IDE_CONTROL_OFFSET] = (unsigned long)base + info->ctrloffset;
 		hwif->irq     = ec->irq;
-		hwif->noprobe = 0;
 		hwif->chipset = ide_acorn;
 		hwif->gendev.parent = &ec->dev;
 		hwif->dev = &ec->dev;
@@ -462,8 +477,10 @@ icside_register_v5(struct icside_state *state, struct expansion_card *ec)
 }
 
 static const struct ide_port_info icside_v6_port_info __initdata = {
+	.init_dma		= icside_dma_off_init,
+	.port_ops		= &icside_v6_no_dma_port_ops,
+	.dma_ops		= &icside_v6_dma_ops,
 	.host_flags		= IDE_HFLAG_SERIALIZE |
-				  IDE_HFLAG_NO_DMA | /* no SFF-style DMA */
 				  IDE_HFLAG_NO_AUTOTUNE,
 	.mwdma_mask		= ATA_MWDMA2,
 	.swdma_mask		= ATA_SWDMA2,
@@ -526,7 +543,6 @@ icside_register_v6(struct icside_state *state, struct expansion_card *ec)
 	state->hwif[0]    = hwif;
 	state->hwif[1]    = mate;
 
-	hwif->maskproc    = icside_maskproc;
 	hwif->hwif_data   = state;
 	hwif->config_data = (unsigned long)ioc_base;
 	hwif->select_data = sel;
@@ -537,10 +553,10 @@ icside_register_v6(struct icside_state *state, struct expansion_card *ec)
 	mate->select_data = sel | 1;
 
 	if (ec->dma != NO_DMA && !request_dma(ec->dma, hwif->name)) {
-		icside_dma_init(hwif);
-		icside_dma_init(mate);
-	} else
-		d.mwdma_mask = d.swdma_mask = 0;
+		d.init_dma = icside_dma_init;
+		d.port_ops = &icside_v6_dma_port_ops;
+		d.dma_ops = NULL;
+	}
 
 	idx[0] = hwif->index;
 	idx[1] = mate->index;

drivers/ide/arm/ide_arm.c

@@ -14,6 +14,8 @@
 #include <asm/mach-types.h>
 #include <asm/irq.h>
 
+#define DRV_NAME "ide_arm"
+
 #ifdef CONFIG_ARCH_CLPS7500
 # include <asm/arch/hardware.h>
 #
@@ -28,10 +30,24 @@ static int __init ide_arm_init(void)
 {
 	ide_hwif_t *hwif;
 	hw_regs_t hw;
+	unsigned long base = IDE_ARM_IO, ctl = IDE_ARM_IO + 0x206;
 	u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
 
+	if (!request_region(base, 8, DRV_NAME)) {
+		printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n",
+				DRV_NAME, base, base + 7);
+		return -EBUSY;
+	}
+
+	if (!request_region(ctl, 1, DRV_NAME)) {
+		printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n",
+				DRV_NAME, ctl);
+		release_region(base, 8);
+		return -EBUSY;
+	}
+
 	memset(&hw, 0, sizeof(hw));
-	ide_std_init_ports(&hw, IDE_ARM_IO, IDE_ARM_IO + 0x206);
+	ide_std_init_ports(&hw, base, ctl);
 	hw.irq = IDE_ARM_IRQ;
 
 	hwif = ide_find_port();

drivers/ide/arm/palm_bk3710.c

@@ -317,17 +317,31 @@ static u8 __devinit palm_bk3710_cable_detect(ide_hwif_t *hwif)
 	return ATA_CBL_PATA80;
 }
 
-static void __devinit palm_bk3710_init_hwif(ide_hwif_t *hwif)
+static int __devinit palm_bk3710_init_dma(ide_hwif_t *hwif,
+					  const struct ide_port_info *d)
 {
-	hwif->set_pio_mode = palm_bk3710_set_pio_mode;
-	hwif->set_dma_mode = palm_bk3710_set_dma_mode;
+	unsigned long base =
+		hwif->io_ports[IDE_DATA_OFFSET] - IDE_PALM_ATA_PRI_REG_OFFSET;
 
-	hwif->cable_detect = palm_bk3710_cable_detect;
+	printk(KERN_INFO "    %s: MMIO-DMA\n", hwif->name);
+
+	if (ide_allocate_dma_engine(hwif))
+		return -1;
+
+	ide_setup_dma(hwif, base);
+
+	return 0;
 }
 
+static const struct ide_port_ops palm_bk3710_ports_ops = {
+	.set_pio_mode		= palm_bk3710_set_pio_mode,
+	.set_dma_mode		= palm_bk3710_set_dma_mode,
+	.cable_detect		= palm_bk3710_cable_detect,
+};
+
 static const struct ide_port_info __devinitdata palm_bk3710_port_info = {
-	.init_hwif		= palm_bk3710_init_hwif,
-	.host_flags		= IDE_HFLAG_NO_DMA, /* hack (no PCI) */
+	.init_dma		= palm_bk3710_init_dma,
+	.port_ops		= &palm_bk3710_ports_ops,
 	.pio_mask		= ATA_PIO4,
 	.udma_mask		= ATA_UDMA4,	/* (input clk 99MHz) */
 	.mwdma_mask		= ATA_MWDMA2,
@@ -394,8 +408,6 @@ static int __devinit palm_bk3710_probe(struct platform_device *pdev)
 	hwif->mmio = 1;
 	default_hwif_mmiops(hwif);
 
-	ide_setup_dma(hwif, mem->start);
-
 	idx[0] = i;
 
 	ide_device_add(idx, &palm_bk3710_port_info);

drivers/ide/arm/rapide.c

@@ -53,7 +53,6 @@ rapide_probe(struct expansion_card *ec, const struct ecard_id *id)
 
 		ide_init_port_hw(hwif, &hw);
 
-		hwif->mmio = 1;
 		default_hwif_mmiops(hwif);
 
 		idx[0] = hwif->index;

drivers/ide/cris/ide-cris.c

@@ -673,11 +673,6 @@ cris_ide_inb(unsigned long reg)
 	return (unsigned char)cris_ide_inw(reg);
 }
 
-static int cris_dma_end (ide_drive_t *drive);
-static int cris_dma_setup (ide_drive_t *drive);
-static void cris_dma_exec_cmd (ide_drive_t *drive, u8 command);
-static int cris_dma_test_irq(ide_drive_t *drive);
-static void cris_dma_start(ide_drive_t *drive);
 static void cris_ide_input_data (ide_drive_t *drive, void *, unsigned int);
 static void cris_ide_output_data (ide_drive_t *drive, void *, unsigned int);
 static void cris_atapi_input_bytes(ide_drive_t *drive, void *, unsigned int);
@@ -782,8 +777,17 @@ static void __init cris_setup_ports(hw_regs_t *hw, unsigned long base)
 	hw->ack_intr = cris_ide_ack_intr;
 }
 
+static const struct ide_port_ops cris_port_ops = {
+	.set_pio_mode		= cris_set_pio_mode,
+	.set_dma_mode		= cris_set_dma_mode,
+};
+
+static const struct ide_dma_ops cris_dma_ops;
+
 static const struct ide_port_info cris_port_info __initdata = {
 	.chipset		= ide_etrax100,
+	.port_ops		= &cris_port_ops,
+	.dma_ops		= &cris_dma_ops,
 	.host_flags		= IDE_HFLAG_NO_ATAPI_DMA |
 				  IDE_HFLAG_NO_DMA, /* no SFF-style DMA */
 	.pio_mask		= ATA_PIO4,
@@ -809,19 +813,11 @@ static int __init init_e100_ide(void)
 			continue;
 		ide_init_port_data(hwif, hwif->index);
 		ide_init_port_hw(hwif, &hw);
-		hwif->mmio = 1;
-		hwif->set_pio_mode = &cris_set_pio_mode;
-		hwif->set_dma_mode = &cris_set_dma_mode;
+
 		hwif->ata_input_data = &cris_ide_input_data;
 		hwif->ata_output_data = &cris_ide_output_data;
 		hwif->atapi_input_bytes = &cris_atapi_input_bytes;
 		hwif->atapi_output_bytes = &cris_atapi_output_bytes;
-		hwif->dma_host_set = &cris_dma_host_set;
-		hwif->ide_dma_end = &cris_dma_end;
-		hwif->dma_setup = &cris_dma_setup;
-		hwif->dma_exec_cmd = &cris_dma_exec_cmd;
-		hwif->ide_dma_test_irq = &cris_dma_test_irq;
-		hwif->dma_start = &cris_dma_start;
 		hwif->OUTB = &cris_ide_outb;
 		hwif->OUTW = &cris_ide_outw;
 		hwif->OUTBSYNC = &cris_ide_outbsync;
@@ -1076,6 +1072,15 @@ static void cris_dma_start(ide_drive_t *drive)
 	}
 }
 
+static const struct ide_dma_ops cris_dma_ops = {
+	.dma_host_set		= cris_dma_host_set,
+	.dma_setup		= cris_dma_setup,
+	.dma_exec_cmd		= cris_dma_exec_cmd,
+	.dma_start		= cris_dma_start,
+	.dma_end		= cris_dma_end,
+	.dma_test_irq		= cris_dma_test_irq,
+};
+
 module_init(init_e100_ide);
 
 MODULE_LICENSE("GPL");

drivers/ide/h8300/ide-h8300.c

@@ -74,7 +74,6 @@ static inline void hwif_setup(ide_hwif_t *hwif)
 {
 	default_hwif_iops(hwif);
 
-	hwif->mmio  = 1;
 	hwif->OUTW  = mm_outw;
 	hwif->OUTSW = mm_outsw;
 	hwif->INW   = mm_inw;