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x86: apic - introduce get_physical_broadcast for 64bit 

We don't really use it now on 64bit mode but
could reserve it for future.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
hifive-unleashed-5.1
Cyrill Gorcunov 2008-08-24 02:01:40 -07:00 committed by Ingo Molnar
parent db4b5525ca
commit 7c37e48b51
1 changed files with 10 additions and 0 deletions
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10
arch/x86/kernel/apic_64.c
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@ -244,6 +244,16 @@ void __cpuinit enable_NMI_through_LVT0(void)
apic_write(APIC_LVT0, v);
}
#ifdef CONFIG_X86_32
/**
* get_physical_broadcast - Get number of physical broadcast IDs
*/
int get_physical_broadcast(void)
{
return modern_apic() ? 0xff : 0xf;
}
#endif
/**
* lapic_get_maxlvt - get the maximum number of local vector table entries
*/