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[POWERPC] pci32: Add platform option to enable /proc PCI domains

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This adds flags the platforms can use to enable domain numbers
in /proc/bus/pci.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Benjamin Herrenschmidt
2007-12-20 14:54:49 +11:00
committed by Paul Mackerras
parent 853ad6c2e7
commit fa462f2d75
4 changed files with 25 additions and 18 deletions
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16
arch/powerpc/kernel/pci-common.c
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@@ -639,3 +639,19 @@ void __devinit pci_process_bridge_OF_ranges(struct pci_controller *hose,
hose->mem_resources[memno-1] = tmp;
}
}
/* Decide whether to display the domain number in /proc */
int pci_proc_domain(struct pci_bus *bus)
{
struct pci_controller *hose = pci_bus_to_host(bus);
#ifdef CONFIG_PPC64
return hose->buid != 0;
#else
if (!(ppc_pci_flags & PPC_PCI_ENABLE_PROC_DOMAINS))
return 0;
if (ppc_pci_flags & PPC_PCI_COMPAT_DOMAIN_0)
return hose->global_number != 0;
return 1;
#endif
}