diff options
| author | David Woodhouse <David.Woodhouse@intel.com> | 2008-10-21 19:42:20 +0100 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2008-10-21 19:42:20 +0100 |
| commit | b876d08f816527af257e13d89fb0d3b4b849223c (patch) | |
| tree | 40569f568230f918ca55f04b355e251747f913ed /include/asm-x86/apic.h | |
| parent | b364776ad1208a71f0c53578c84619a395412a8d (diff) | |
| parent | 2515ddc6db8eb49a79f0fe5e67ff09ac7c81eab4 (diff) | |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
drivers/pci/dmar.c
Diffstat (limited to 'include/asm-x86/apic.h')
| -rw-r--r-- | include/asm-x86/apic.h | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/include/asm-x86/apic.h b/include/asm-x86/apic.h index d76a0839abe..ef1d72dbdfe 100644 --- a/include/asm-x86/apic.h +++ b/include/asm-x86/apic.h @@ -40,8 +40,6 @@ extern void generic_apic_probe(void); extern unsigned int apic_verbosity; extern int local_apic_timer_c2_ok; -extern int ioapic_force; - extern int disable_apic; /* * Basic functions accessing APICs. @@ -100,6 +98,20 @@ extern void check_x2apic(void); extern void enable_x2apic(void); extern void enable_IR_x2apic(void); extern void x2apic_icr_write(u32 low, u32 id); +static inline int x2apic_enabled(void) +{ + int msr, msr2; + + if (!cpu_has_x2apic) + return 0; + + rdmsr(MSR_IA32_APICBASE, msr, msr2); + if (msr & X2APIC_ENABLE) + return 1; + return 0; +} +#else +#define x2apic_enabled() 0 #endif struct apic_ops { |