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| author | Cyrill Gorcunov <gorcunov@gmail.com> | 2008-08-24 02:01:40 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-10-16 16:53:00 +0200 |
| commit | 7c37e48b5125fdb0acac846a0a3af42806175d44 (patch) | |
| tree | 4960e3c9b0ffae7ca79cfe189b7b11632b2acc76 /arch/x86/kernel | |
| parent | db4b5525caafd846ec20f95afbc6403c792e22cf (diff) | |
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>
Diffstat (limited to 'arch/x86/kernel')
| -rw-r--r-- | arch/x86/kernel/apic_64.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c index 8f551276681..bb46711a0b1 100644 --- a/arch/x86/kernel/apic_64.c +++ b/arch/x86/kernel/apic_64.c @@ -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 */ |