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| author |   Jeff Garzik <jeff@garzik.org> | 2007-10-11 16:57:27 -0400 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@suse.de> | 2007-10-12 15:03:18 -0700 |
| commit | 32a2eea795643929a43cbbba00d8c4a176b309bf (patch) | |
| tree | c0bbf2e3ef330ec9f36c42dfbe6c360efe685f82 /include | |
| parent | PCI: modify PCI bridge control ISA flag for clarity (diff) | |
| download | linux-dev-32a2eea795643929a43cbbba00d8c4a176b309bf.tar.xz linux-dev-32a2eea795643929a43cbbba00d8c4a176b309bf.zip | |
PCI: Add 'nodomains' boot option, and pci_domains_supported global
* Introduce pci_domains_supported global, hardcoded to zero if
!CONFIG_PCI_DOMAINS.
* Introduce 'nodomains' boot option, which clears pci_domains_supported
on platforms that enable it by default (x86, x86-64, and others when
they are converted to use this).
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/pci.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h index 038a0dc7273a..768b93359f90 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -685,13 +685,16 @@ extern void pci_unblock_user_cfg_access(struct pci_dev *dev); * a PCI domain is defined to be a set of PCI busses which share * configuration space. */ -#ifndef CONFIG_PCI_DOMAINS +#ifdef CONFIG_PCI_DOMAINS +extern int pci_domains_supported; +#else +enum { pci_domains_supported = 0 }; static inline int pci_domain_nr(struct pci_bus *bus) { return 0; } static inline int pci_proc_domain(struct pci_bus *bus) { return 0; } -#endif +#endif /* CONFIG_PCI_DOMAINS */ #else /* CONFIG_PCI is not enabled */ |