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author | Len Brown <len.brown@intel.com> | 2005-09-08 01:45:47 -0400 |
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committer | Len Brown <len.brown@intel.com> | 2005-09-08 01:45:47 -0400 |
commit | 64e47488c913ac704d465a6af86a26786d1412a5 (patch) | |
tree | d3b0148592963dcde26e4bb35ddfec8b1eaf8e23 /arch/i386/mach-generic/probe.c | |
parent | 4a35a46bf1cda4737c428380d1db5d15e2590d18 (diff) | |
parent | caf39e87cc1182f7dae84eefc43ca14d54c78ef9 (diff) | |
download | blackbird-op-linux-64e47488c913ac704d465a6af86a26786d1412a5.tar.gz blackbird-op-linux-64e47488c913ac704d465a6af86a26786d1412a5.zip |
Merge linux-2.6 with linux-acpi-2.6
Diffstat (limited to 'arch/i386/mach-generic/probe.c')
-rw-r--r-- | arch/i386/mach-generic/probe.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/i386/mach-generic/probe.c b/arch/i386/mach-generic/probe.c index 5497c65a8790..cea5b3ce4b57 100644 --- a/arch/i386/mach-generic/probe.c +++ b/arch/i386/mach-generic/probe.c @@ -30,6 +30,25 @@ struct genapic *apic_probe[] __initdata = { NULL, }; +static int cmdline_apic; + +void __init generic_bigsmp_probe(void) +{ + /* + * This routine is used to switch to bigsmp mode when + * - There is no apic= option specified by the user + * - generic_apic_probe() has choosen apic_default as the sub_arch + * - we find more than 8 CPUs in acpi LAPIC listing with xAPIC support + */ + + if (!cmdline_apic && genapic == &apic_default) + if (apic_bigsmp.probe()) { + genapic = &apic_bigsmp; + printk(KERN_INFO "Overriding APIC driver with %s\n", + genapic->name); + } +} + void __init generic_apic_probe(char *command_line) { char *s; @@ -52,6 +71,7 @@ void __init generic_apic_probe(char *command_line) if (!changed) printk(KERN_ERR "Unknown genapic `%s' specified.\n", s); *p = old; + cmdline_apic = changed; } for (i = 0; !changed && apic_probe[i]; i++) { if (apic_probe[i]->probe()) { |