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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 /drivers/pci | |
| parent | 11949255d9433ea6c0908b7390ec4faecd1d4cf0 (diff) | |
| download | linux-32a2eea795643929a43cbbba00d8c4a176b309bf.tar.gz linux-32a2eea795643929a43cbbba00d8c4a176b309bf.tar.bz2 linux-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 'drivers/pci')
| -rw-r--r-- | drivers/pci/pci.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 2dd5c282fabe..728b3c863d87 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -23,6 +23,10 @@ unsigned int pci_pm_d3_delay = 10; +#ifdef CONFIG_PCI_DOMAINS +int pci_domains_supported = 1; +#endif + #define DEFAULT_CARDBUS_IO_SIZE (256) #define DEFAULT_CARDBUS_MEM_SIZE (64*1024*1024) /* pci=cbmemsize=nnM,cbiosize=nn can override this */ @@ -1567,6 +1571,13 @@ int pci_select_bars(struct pci_dev *dev, unsigned long flags) return bars; } +static void __devinit pci_no_domains(void) +{ +#ifdef CONFIG_PCI_DOMAINS + pci_domains_supported = 0; +#endif +} + static int __devinit pci_init(void) { struct pci_dev *dev = NULL; @@ -1588,6 +1599,8 @@ static int __devinit pci_setup(char *str) pci_no_msi(); } else if (!strcmp(str, "noaer")) { pci_no_aer(); + } else if (!strcmp(str, "nodomains")) { + pci_no_domains(); } else if (!strncmp(str, "cbiosize=", 9)) { pci_cardbus_io_size = memparse(str + 9, &str); } else if (!strncmp(str, "cbmemsize=", 10)) { |