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| author | Ingo Molnar <mingo@elte.hu> | 2009-02-26 12:47:40 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-02-26 12:49:34 +0100 |
| commit | 0917c01f8e793f57a53cf886533d4c75c67f6e89 (patch) | |
| tree | 0aaf2e2107ecb54f28bcd97c2b9706842f395552 /arch | |
| parent | 129d8bc828e011bda0b7110a097bf3a0167f966e (diff) | |
| download | linux-0917c01f8e793f57a53cf886533d4c75c67f6e89.tar.gz linux-0917c01f8e793f57a53cf886533d4c75c67f6e89.tar.bz2 linux-0917c01f8e793f57a53cf886533d4c75c67f6e89.zip | |
x86: remove update_apic from x86_quirks, fix
Impact: build fix
wakeup_secondary_cpu_via_init(), the default platform method for
booting a secondary CPU, is always used on UP due to probe_32.c,
if CONFIG_X86_LOCAL_APIC is enabled but SMP is off.
So provide a UP wrapper inline as well.
Cc: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/include/asm/apic.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h index 24e21273e30b..0fbf6f1520fa 100644 --- a/arch/x86/include/asm/apic.h +++ b/arch/x86/include/asm/apic.h @@ -331,10 +331,27 @@ struct apic { u32 (*safe_wait_icr_idle)(void); }; +/* + * Pointer to the local APIC driver in use on this system (there's + * always just one such driver in use - the kernel decides via an + * early probing process which one it picks - and then sticks to it): + */ extern struct apic *apic; + +/* + * APIC functionality to boot other CPUs - only used on SMP: + */ +#ifdef CONFIG_SMP extern atomic_t init_deasserted; extern int wakeup_secondary_cpu_via_nmi(int apicid, unsigned long start_eip); extern int wakeup_secondary_cpu_via_init(int apicid, unsigned long start_eip); +#else +static inline int +wakeup_secondary_cpu_via_init(int apicid, unsigned long start_eip) +{ + return 0; +} +#endif static inline u32 apic_read(u32 reg) { |