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https://github.com/torvalds/linux
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5516b540e9
Make the pci_controller struct use global_number for the PHB domain number instead of index to match what ppc64 does and reuse its pci_domain_nr code. Introduced a pci-common.c to handle shared code between ppc32 & ppc64. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
54 lines
1.1 KiB
C
54 lines
1.1 KiB
C
/*
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* Contains common pci routines for ALL ppc platform
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#undef DEBUG
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#include <linux/kernel.h>
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#include <linux/pci.h>
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#include <linux/string.h>
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#include <linux/init.h>
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#include <linux/bootmem.h>
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#include <linux/mm.h>
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#include <linux/list.h>
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#include <linux/syscalls.h>
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#include <linux/irq.h>
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#include <linux/vmalloc.h>
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#include <asm/processor.h>
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#include <asm/io.h>
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#include <asm/prom.h>
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#include <asm/pci-bridge.h>
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#include <asm/byteorder.h>
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#include <asm/machdep.h>
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#include <asm/ppc-pci.h>
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#include <asm/firmware.h>
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#ifdef DEBUG
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#include <asm/udbg.h>
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#define DBG(fmt...) printk(fmt)
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#else
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#define DBG(fmt...)
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#endif
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/*
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* Return the domain number for this bus.
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*/
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int pci_domain_nr(struct pci_bus *bus)
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{
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if (firmware_has_feature(FW_FEATURE_ISERIES))
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return 0;
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else {
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struct pci_controller *hose = pci_bus_to_host(bus);
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return hose->global_number;
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}
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}
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EXPORT_SYMBOL(pci_domain_nr);
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