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sgiioc4: use ide_tune_dma() 

* Add DRV_NAME define and use it instead of sgiioc4_chipset.name.

* Remove no longer needed sgiioc4_chipset.

* Remove needless clearing of ->atapi_dma from ide_dma_sgiioc4().

* Fix ide_dma_sgiioc4() to return success/failure.  Check return value in
  sgiioc4_ide_setup_pci_device() and set hwif->autodma accordingly.  Also add
  missing setting of drive->autodma.

* Add sgiioc4_speedproc() (implementation of ->speedproc method).

* Fix ->mwdma_mask (MWDMA2 mask is 0x04 not 0x02) and remove incorrect
  ->swdma_mask.  Also remove needless initialization of ->ultra_mask.

* Use ide_tune_dma() in sgiioc4_ide_dma_check(), this fixes following bugs:
  - DMA capability bit not being checked on the device
  - DMA blacklist not being checked
  - MWDMA2 mode support by device not being checked

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeremy Higdon <jeremy@sgi.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2007-10-11 23:54:00 +02:00
parent 55f17e8da1
commit ca1997c1f3
1 changed files with 43 additions and 43 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

86
drivers/ide/pci/sgiioc4.c
View File

@ -34,6 +34,8 @@
#include <linux/ide.h>
#define DRV_NAME "SGIIOC4"
/* IOC4 Specific Definitions */
#define IOC4_CMD_OFFSET 0x100
#define IOC4_CTRL_OFFSET 0x120
@ -289,15 +291,26 @@ static void sgiioc4_dma_off_quietly(ide_drive_t *drive)
drive->hwif->dma_host_off(drive);
}
static int sgiioc4_speedproc(ide_drive_t *drive, const u8 speed)
{
if (speed != XFER_MW_DMA_2)
return 1;
return ide_config_drive_speed(drive, speed);
}
static int sgiioc4_ide_dma_check(ide_drive_t *drive)
{
/* FIXME: check for available DMA modes */
if (ide_config_drive_speed(drive, XFER_MW_DMA_2) != 0) {
printk(KERN_WARNING "%s: couldn't set MWDMA2 mode, "
"using PIO instead\n", drive->name);
return -1;
} else
if (ide_tune_dma(drive))
return 0;
/*
* ->set_pio_mode is not implemented currently
* so this is just for the completness
*/
ide_set_max_pio(drive);
return -1;
}
/* returns 1 if dma irq issued, 0 otherwise */
@ -353,7 +366,7 @@ sgiioc4_INB(unsigned long port)
}
/* Creates a dma map for the scatter-gather list entries */
static void __devinit
static int __devinit
ide_dma_sgiioc4(ide_hwif_t * hwif, unsigned long dma_base)
{
void __iomem *virt_dma_base;
@ -369,7 +382,7 @@ ide_dma_sgiioc4(ide_hwif_t * hwif, unsigned long dma_base)
"ALREADY in use\n",
__FUNCTION__, hwif->name, (void *) dma_base,
(void *) dma_base + num_ports - 1);
goto dma_alloc_failure;
return -1;
}
virt_dma_base = ioremap(dma_base, num_ports);
@ -395,7 +408,7 @@ ide_dma_sgiioc4(ide_hwif_t * hwif, unsigned long dma_base)
if (pad) {
ide_set_hwifdata(hwif, pad);
return;
return 0;
}
pci_free_consistent(hwif->pci_dev,
@ -413,10 +426,7 @@ dma_pci_alloc_failure:
dma_remap_failure:
release_mem_region(dma_base, num_ports);
dma_alloc_failure:
/* Disable DMA because we couldnot allocate any DMA maps */
hwif->autodma = 0;
hwif->atapi_dma = 0;
return -1;
}
/* Initializes the IOC4 DMA Engine */
@ -581,14 +591,11 @@ static void __devinit
ide_init_sgiioc4(ide_hwif_t * hwif)
{
hwif->mmio = 1;
hwif->autodma = 1;
hwif->atapi_dma = 1;
hwif->ultra_mask = 0x0; /* Disable Ultra DMA */
hwif->mwdma_mask = 0x2; /* Multimode-2 DMA */
hwif->swdma_mask = 0x2;
hwif->mwdma_mask = 0x04;
hwif->pio_mask = 0x00;
hwif->set_pio_mode = NULL; /* Sets timing for PIO mode */
hwif->speedproc = NULL; /* Sets timing for DMA &/or PIO modes */
hwif->speedproc = &sgiioc4_speedproc;
hwif->selectproc = NULL;/* Use the default routine to select drive */
hwif->reset_poll = NULL;/* No HBA specific reset_poll needed */
hwif->pre_reset = NULL; /* No HBA specific pre_set needed */
@ -615,7 +622,7 @@ ide_init_sgiioc4(ide_hwif_t * hwif)
}
static int __devinit
sgiioc4_ide_setup_pci_device(struct pci_dev *dev, ide_pci_device_t * d)
sgiioc4_ide_setup_pci_device(struct pci_dev *dev)
{
unsigned long cmd_base, dma_base, irqport;
unsigned long bar0, cmd_phys_base, ctl;
@ -632,7 +639,8 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev, ide_pci_device_t * d)
break;
}
if (h == MAX_HWIFS) {
printk(KERN_ERR "%s: too many IDE interfaces, no room in table\n", d->name);
printk(KERN_ERR "%s: too many IDE interfaces, no room in table\n",
DRV_NAME);
return -ENOMEM;
}
@ -641,7 +649,7 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev, ide_pci_device_t * d)
virt_base = ioremap(bar0, pci_resource_len(dev, 0));
if (virt_base == NULL) {
printk(KERN_ERR "%s: Unable to remap BAR 0 address: 0x%lx\n",
d->name, bar0);
DRV_NAME, bar0);
return -ENOMEM;
}
cmd_base = (unsigned long) virt_base + IOC4_CMD_OFFSET;
@ -672,7 +680,6 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev, ide_pci_device_t * d)
hwif->chipset = ide_pci;
hwif->pci_dev = dev;
hwif->channel = 0; /* Single Channel chip */
hwif->cds = (struct ide_pci_device_s *) d;
hwif->gendev.parent = &dev->dev;/* setup proper ancestral information */
/* The IOC4 uses MMIO rather than Port IO. */
@ -683,11 +690,14 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev, ide_pci_device_t * d)
ide_init_sgiioc4(hwif);
if (dma_base)
ide_dma_sgiioc4(hwif, dma_base);
else
hwif->autodma = 0;
if (dma_base && ide_dma_sgiioc4(hwif, dma_base) == 0) {
hwif->autodma = 1;
hwif->drives[1].autodma = hwif->drives[0].autodma = 1;
} else
printk(KERN_INFO "%s: %s Bus-Master DMA disabled\n",
hwif->name, d->name);
hwif->name, DRV_NAME);
if (probe_hwif_init(hwif))
return -EIO;
@ -699,7 +709,7 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev, ide_pci_device_t * d)
}
static unsigned int __devinit
pci_init_sgiioc4(struct pci_dev *dev, ide_pci_device_t * d)
pci_init_sgiioc4(struct pci_dev *dev)
{
unsigned int class_rev;
int ret;
@ -707,30 +717,20 @@ pci_init_sgiioc4(struct pci_dev *dev, ide_pci_device_t * d)
pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
class_rev &= 0xff;
printk(KERN_INFO "%s: IDE controller at PCI slot %s, revision %d\n",
d->name, pci_name(dev), class_rev);
DRV_NAME, pci_name(dev), class_rev);
if (class_rev < IOC4_SUPPORTED_FIRMWARE_REV) {
printk(KERN_ERR "Skipping %s IDE controller in slot %s: "
"firmware is obsolete - please upgrade to revision"
"46 or higher\n", d->name, pci_name(dev));
"firmware is obsolete - please upgrade to "
"revision46 or higher\n",
DRV_NAME, pci_name(dev));
ret = -EAGAIN;
goto out;
}
ret = sgiioc4_ide_setup_pci_device(dev, d);
ret = sgiioc4_ide_setup_pci_device(dev);
out:
return ret;
}
static ide_pci_device_t sgiioc4_chipset __devinitdata = {
/* Channel 0 */
.name = "SGIIOC4",
.init_hwif = ide_init_sgiioc4,
.init_dma = ide_dma_sgiioc4,
.autodma = AUTODMA,
/* SGI IOC4 doesn't have enablebits. */
.bootable = ON_BOARD,
.host_flags = IDE_HFLAG_SINGLE,
};
int
ioc4_ide_attach_one(struct ioc4_driver_data *idd)
{
@ -740,7 +740,7 @@ ioc4_ide_attach_one(struct ioc4_driver_data *idd)
if (idd->idd_variant == IOC4_VARIANT_PCI_RT)
return 0;
return pci_init_sgiioc4(idd->idd_pdev, &sgiioc4_chipset);
return pci_init_sgiioc4(idd->idd_pdev);
}
static struct ioc4_submodule ioc4_ide_submodule = {