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| author | Glauber Costa <gcosta@redhat.com> | 2008-03-27 18:05:58 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-04-17 17:41:32 +0200 |
| commit | 1b00084386878f25c2c591ad19cb625880d4089d (patch) | |
| tree | 86dd602eb31a10d64a1b7e07fa6ea2f272d6c25b /include/asm-x86/smp.h | |
| parent | x86: provide bogus hard_smp_processor_id (diff) | |
| download | linux-1b00084386878f25c2c591ad19cb625880d4089d.tar.xz linux-1b00084386878f25c2c591ad19cb625880d4089d.zip | |
x86: merge hard/logical_smp_processor_id
The code is now the same between i386 and x86_64. We already
know what happens when it reaches this point: They go away
from the arch-specific headers, and suddenly appears in the common
header.
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-x86/smp.h')
| -rw-r--r-- | include/asm-x86/smp.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/include/asm-x86/smp.h b/include/asm-x86/smp.h index ef26911dc22a..e5534f19c312 100644 --- a/include/asm-x86/smp.h +++ b/include/asm-x86/smp.h @@ -123,6 +123,33 @@ void smp_store_cpu_info(int id); # include "smp_64.h" #endif +#ifdef CONFIG_X86_LOCAL_APIC + +static inline int logical_smp_processor_id(void) +{ + /* we don't want to mark this access volatile - bad code generation */ + return GET_APIC_LOGICAL_ID(*(u32 *)(APIC_BASE + APIC_LDR)); +} + +# ifdef APIC_DEFINITION +extern int hard_smp_processor_id(void); +# else +# include <mach_apicdef.h> +static inline int hard_smp_processor_id(void) +{ + /* we don't want to mark this access volatile - bad code generation */ + return GET_APIC_ID(*(u32 *)(APIC_BASE + APIC_ID)); +} +# endif /* APIC_DEFINITION */ + +#else /* CONFIG_X86_LOCAL_APIC */ + +# ifndef CONFIG_SMP +# define hard_smp_processor_id() 0 +# endif + +#endif /* CONFIG_X86_LOCAL_APIC */ + #ifdef CONFIG_HOTPLUG_CPU extern void cpu_exit_clear(void); extern void cpu_uninit(void); |