diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2007-12-20 14:54:55 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-12-20 16:18:10 +1100 |
| commit | 50c9bc2fc86fddd39eea6a12ceb81585bc2aafaa (patch) | |
| tree | a6021e68bdc0477ada4bc81d04443e3316cdbb4f /arch/powerpc/kernel/pci-common.c | |
| parent | 3fd94c6b1a1158d3e0e505b0a00c3a707b5fcd40 (diff) | |
[POWERPC] fix iSeries PCI resource management
The way iSeries manages PCI IO and Memory resources is a bit strange
and is based on overriding the content of those resources with home
cooked ones afterward.
This changes it a bit to better integrate with the new resource handling
so that the "virtual" tokens that iSeries replaces resources with are
done from the proper per-device fixup hook, and bridge resources are
set to enclose that token space. This fixes various things such as
the output of /proc/iomem & ioports, among others. This also fixes up
various boot messages as well.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel/pci-common.c')
| -rw-r--r-- | arch/powerpc/kernel/pci-common.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index d804c8d0be0..f706b7e83d7 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -190,6 +190,20 @@ int pci_read_irq_line(struct pci_dev *pci_dev) struct of_irq oirq; unsigned int virq; + /* The current device-tree that iSeries generates from the HV + * PCI informations doesn't contain proper interrupt routing, + * and all the fallback would do is print out crap, so we + * don't attempt to resolve the interrupts here at all, some + * iSeries specific fixup does it. + * + * In the long run, we will hopefully fix the generated device-tree + * instead. + */ +#ifdef CONFIG_PPC_ISERIES + if (firmware_has_feature(FW_FEATURE_ISERIES)) + return -1; +#endif + DBG("Try to map irq for %s...\n", pci_name(pci_dev)); #ifdef DEBUG @@ -946,7 +960,7 @@ static void __init pcibios_allocate_bus_resources(struct list_head *bus_list) || res->start > res->end) continue; if (bus->parent == NULL) - pr = (res->flags & IORESOURCE_IO)? + pr = (res->flags & IORESOURCE_IO) ? &ioport_resource : &iomem_resource; else { /* Don't bother with non-root busses when |