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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2006-11-11 17:24:51 +1100
committerPaul Mackerras <paulus@samba.org>2006-12-04 16:00:04 +1100
commitf90bb153b1493719d18b4529a46ebfe43220ea6c (patch)
tree0d19d85be3f9603b9b3c5dc16aa45185ce8f9bc1 /arch/powerpc/platforms/maple
parent34ba8a5cd0b0d57f7775023e6e3fec473a7291cc (diff)
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[POWERPC] Make pci_read_irq_line the default
This patch reworks the way IRQs are fixed up on PCI for arch powerpc. It makes pci_read_irq_line() called by default in the PCI code for devices that are probed, and add an optional per-device fixup in ppc_md for platforms that really need to correct what they obtain from pci_read_irq_line(). It also removes ppc_md.irq_bus_setup which was only used by pSeries and should not be needed anymore. I've also removed the pSeries s7a workaround as it can't work with the current interrupt code anyway. I'm trying to get one of these machines working so I can test a proper fix for that problem. I also haven't updated the old-style fixup code from 85xx_cds.c because it's actually buggy :) It assigns pci_dev->irq hard coded numbers which is no good with the new IRQ mapping code. It should at least use irq_create_mapping(NULL, hard_coded_number); and possibly also set_irq_type() to set them as level low. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/platforms/maple')
-rw-r--r--arch/powerpc/platforms/maple/maple.h2
-rw-r--r--arch/powerpc/platforms/maple/pci.c47
-rw-r--r--arch/powerpc/platforms/maple/setup.c2
3 files changed, 21 insertions, 30 deletions
diff --git a/arch/powerpc/platforms/maple/maple.h b/arch/powerpc/platforms/maple/maple.h
index 0657c57..c6911dd 100644
--- a/arch/powerpc/platforms/maple/maple.h
+++ b/arch/powerpc/platforms/maple/maple.h
@@ -8,5 +8,5 @@ extern void maple_get_rtc_time(struct rtc_time *tm);
extern unsigned long maple_get_boot_time(void);
extern void maple_calibrate_decr(void);
extern void maple_pci_init(void);
-extern void maple_pcibios_fixup(void);
+extern void maple_pci_irq_fixup(struct pci_dev *dev);
extern int maple_pci_get_legacy_ide_irq(struct pci_dev *dev, int channel);
diff --git a/arch/powerpc/platforms/maple/pci.c b/arch/powerpc/platforms/maple/pci.c
index 63b4d1b..3a32ded 100644
--- a/arch/powerpc/platforms/maple/pci.c
+++ b/arch/powerpc/platforms/maple/pci.c
@@ -502,38 +502,29 @@ static int __init add_bridge(struct device_node *dev)
}
-void __init maple_pcibios_fixup(void)
+void __devinit maple_pci_irq_fixup(struct pci_dev *dev)
{
- struct pci_dev *dev = NULL;
-
- DBG(" -> maple_pcibios_fixup\n");
-
- for_each_pci_dev(dev) {
- /* Fixup IRQ for PCIe host */
- if (u4_pcie != NULL && dev->bus->number == 0 &&
- pci_bus_to_host(dev->bus) == u4_pcie) {
- printk(KERN_DEBUG "Fixup U4 PCIe IRQ\n");
- dev->irq = irq_create_mapping(NULL, 1);
- if (dev->irq != NO_IRQ)
- set_irq_type(dev->irq, IRQ_TYPE_LEVEL_LOW);
- continue;
- }
-
- /* Hide AMD8111 IDE interrupt when in legacy mode so
- * the driver calls pci_get_legacy_ide_irq()
- */
- if (dev->vendor == PCI_VENDOR_ID_AMD &&
- dev->device == PCI_DEVICE_ID_AMD_8111_IDE &&
- (dev->class & 5) != 5) {
- dev->irq = NO_IRQ;
- continue;
- }
+ DBG(" -> maple_pci_irq_fixup\n");
+
+ /* Fixup IRQ for PCIe host */
+ if (u4_pcie != NULL && dev->bus->number == 0 &&
+ pci_bus_to_host(dev->bus) == u4_pcie) {
+ printk(KERN_DEBUG "Fixup U4 PCIe IRQ\n");
+ dev->irq = irq_create_mapping(NULL, 1);
+ if (dev->irq != NO_IRQ)
+ set_irq_type(dev->irq, IRQ_TYPE_LEVEL_LOW);
+ }
- /* For all others, map the interrupt from the device-tree */
- pci_read_irq_line(dev);
+ /* Hide AMD8111 IDE interrupt when in legacy mode so
+ * the driver calls pci_get_legacy_ide_irq()
+ */
+ if (dev->vendor == PCI_VENDOR_ID_AMD &&
+ dev->device == PCI_DEVICE_ID_AMD_8111_IDE &&
+ (dev->class & 5) != 5) {
+ dev->irq = NO_IRQ;
}
- DBG(" <- maple_pcibios_fixup\n");
+ DBG(" <- maple_pci_irq_fixup\n");
}
static void __init maple_fixup_phb_resources(void)
diff --git a/arch/powerpc/platforms/maple/setup.c b/arch/powerpc/platforms/maple/setup.c
index fe6b9bf..094989d 100644
--- a/arch/powerpc/platforms/maple/setup.c
+++ b/arch/powerpc/platforms/maple/setup.c
@@ -312,7 +312,7 @@ define_machine(maple_md) {
.setup_arch = maple_setup_arch,
.init_early = maple_init_early,
.init_IRQ = maple_init_IRQ,
- .pcibios_fixup = maple_pcibios_fixup,
+ .pci_irq_fixup = maple_pci_irq_fixup,
.pci_get_legacy_ide_irq = maple_pci_get_legacy_ide_irq,
.restart = maple_restart,
.power_off = maple_power_off,