Add IDE_HFLAG_FORCE_LEGACY_IRQS host flag to tell ide_pci_setup_ports()
to always set hwif->irq to legacy IRQ 14/15 and convert generic IDE PCI
and via82cxxx host drivers to use it.
While at it:
* Add IDE_HFLAGS_UMC define (generic IDE PCI host driver).
* Remove no longer needed init_hwif_generic() (generic IDE PCI host driver).
* Set d->udma_mask instead of hwif->ultra_mask (via82cxxx host driver).
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx>
---
drivers/ide/pci/generic.c | 27 ++++++---------------------
drivers/ide/pci/via82cxxx.c | 20 +++++++++++---------
drivers/ide/setup-pci.c | 3 ++-
include/linux/ide.h | 2 ++
4 files changed, 21 insertions(+), 31 deletions(-)
Index: b/drivers/ide/pci/generic.c
===================================================================
--- a/drivers/ide/pci/generic.c
+++ b/drivers/ide/pci/generic.c
@@ -54,25 +54,13 @@ __setup("all-generic-ide", ide_generic_a
module_param_named(all_generic_ide, ide_generic_all, bool, 0444);
MODULE_PARM_DESC(all_generic_ide, "IDE generic will claim all unknown PCI IDE storage controllers.");
-static void __devinit init_hwif_generic (ide_hwif_t *hwif)
-{
- switch(hwif->pci_dev->device) {
- case PCI_DEVICE_ID_UMC_UM8673F:
- case PCI_DEVICE_ID_UMC_UM8886A:
- case PCI_DEVICE_ID_UMC_UM8886BF:
- hwif->irq = hwif->channel ? 15 : 14;
- break;
- default:
- break;
- }
-}
+#define IDE_HFLAGS_UMC (IDE_HFLAG_NO_DMA | IDE_HFLAG_FORCE_LEGACY_IRQS)
-#define DECLARE_GENERIC_PCI_DEV(name_str, dma_setting) \
+#define DECLARE_GENERIC_PCI_DEV(name_str, extra_flags) \
{ \
.name = name_str, \
- .init_hwif = init_hwif_generic, \
.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA | \
- dma_setting | \
+ extra_flags | \
IDE_HFLAG_BOOTABLE, \
}
@@ -81,7 +69,6 @@ static ide_pci_device_t generic_chipsets
{ /* 1 */
.name = "NS87410",
- .init_hwif = init_hwif_generic,
.enablebits = {{0x43,0x08,0x08}, {0x47,0x08,0x08}},
.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA |
IDE_HFLAG_BOOTABLE,
@@ -92,16 +79,15 @@ static ide_pci_device_t generic_chipsets
/* 2 */ DECLARE_GENERIC_PCI_DEV("SAMURAI", 0),
/* 3 */ DECLARE_GENERIC_PCI_DEV("HT6565", 0),
- /* 4 */ DECLARE_GENERIC_PCI_DEV("UM8673F", IDE_HFLAG_NO_DMA),
- /* 5 */ DECLARE_GENERIC_PCI_DEV("UM8886A", IDE_HFLAG_NO_DMA),
- /* 6 */ DECLARE_GENERIC_PCI_DEV("UM8886BF", IDE_HFLAG_NO_DMA),
+ /* 4 */ DECLARE_GENERIC_PCI_DEV("UM8673F", IDE_HFLAGS_UMC),
+ /* 5 */ DECLARE_GENERIC_PCI_DEV("UM8886A", IDE_HFLAGS_UMC),
+ /* 6 */ DECLARE_GENERIC_PCI_DEV("UM8886BF", IDE_HFLAGS_UMC),
/* 7 */ DECLARE_GENERIC_PCI_DEV("HINT_IDE", 0),
/* 8 */ DECLARE_GENERIC_PCI_DEV("VIA_IDE", IDE_HFLAG_NO_AUTODMA),
/* 9 */ DECLARE_GENERIC_PCI_DEV("OPTI621V", IDE_HFLAG_NO_AUTODMA),
{ /* 10 */
.name = "VIA8237SATA",
- .init_hwif = init_hwif_generic,
.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA |
IDE_HFLAG_OFF_BOARD,
.swdma_mask = ATA_SWDMA2,
@@ -115,7 +101,6 @@ static ide_pci_device_t generic_chipsets
{ /* 14 */
.name = "Revolution",
- .init_hwif = init_hwif_generic,
.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA |
IDE_HFLAG_OFF_BOARD,
.swdma_mask = ATA_SWDMA2,
Index: b/drivers/ide/pci/via82cxxx.c
===================================================================
--- a/drivers/ide/pci/via82cxxx.c
+++ b/drivers/ide/pci/via82cxxx.c
@@ -427,12 +427,6 @@ static void __devinit init_hwif_via82cxx
hwif->set_pio_mode = &via_set_pio_mode;
hwif->set_dma_mode = &via_set_drive;
-#ifdef CONFIG_PPC_CHRP
- if(machine_is(chrp) && _chrp_type == _CHRP_Pegasos) {
- hwif->irq = hwif->channel ? 15 : 14;
- }
-#endif
-
for (i = 0; i < 2; i++) {
hwif->drives[i].io_32bit = 1;
hwif->drives[i].unmask = (vdev->via_config->flags & VIA_NO_UNMASK) ? 0 : 1;
@@ -441,8 +435,6 @@ static void __devinit init_hwif_via82cxx
if (!hwif->dma_base)
return;
- hwif->ultra_mask = vdev->via_config->udma_mask;
-
if (hwif->cbl != ATA_CBL_PATA40_SHORT)
hwif->cbl = via82cxxx_cable_detect(hwif);
}
@@ -478,8 +470,10 @@ static ide_pci_device_t via82cxxx_chipse
static int __devinit via_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{
+ ide_pci_device_t *d = &via82cxxx_chipsets[id->driver_data];
struct pci_dev *isa = NULL;
struct via_isa_bridge *via_config;
+
/*
* Find the ISA bridge and check we know what it is.
*/
@@ -489,7 +483,15 @@ static int __devinit via_init_one(struct
printk(KERN_WARNING "VP_IDE: Unknown VIA SouthBridge, disabling DMA.\n");
return -ENODEV;
}
- return ide_setup_pci_device(dev, &via82cxxx_chipsets[id->driver_data]);
+
+#ifdef CONFIG_PPC_CHRP
+ if (machine_is(chrp) && _chrp_type == _CHRP_Pegasos)
+ d->host_flags |= IDE_HFLAG_FORCE_LEGACY_IRQS;
+#endif
+
+ d->udma_mask = via_config->udma_mask;
+
+ return ide_setup_pci_device(dev, d);
}
static const struct pci_device_id via_pci_tbl[] = {
Index: b/drivers/ide/setup-pci.c
===================================================================
--- a/drivers/ide/setup-pci.c
+++ b/drivers/ide/setup-pci.c
@@ -563,7 +563,8 @@ void ide_pci_setup_ports(struct pci_dev
if ((d->host_flags & IDE_HFLAG_NO_DMA) == 0)
ide_hwif_setup_dma(dev, d, hwif);
- if ((d->host_flags & IDE_HFLAG_LEGACY_IRQS) && hwif->irq == 0)
+ if ((!hwif->irq && (d->host_flags & IDE_HFLAG_LEGACY_IRQS)) ||
+ (d->host_flags & IDE_HFLAG_FORCE_LEGACY_IRQS))
hwif->irq = port ? 15 : 14;
hwif->host_flags = d->host_flags;
Index: b/include/linux/ide.h
===================================================================
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1268,6 +1268,8 @@ enum {
IDE_HFLAG_SERIALIZE = (1 << 20),
/* use legacy IRQs */
IDE_HFLAG_LEGACY_IRQS = (1 << 21),
+ /* force use of legacy IRQs */
+ IDE_HFLAG_FORCE_LEGACY_IRQS = (1 << 22),
};
#ifdef CONFIG_BLK_DEV_OFFBOARD
-
To unsubscribe from this list: send the line "unsubscribe linux-ide" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
