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authorJames Bottomley <James.Bottomley@HansenPartnership.com>2008-10-30 16:00:59 -0500
committerIngo Molnar <mingo@elte.hu>2008-10-31 00:19:33 +0100
commitb3572e361b6b2ac5e724bc4bb932b7774b720b95 (patch)
tree5d955cbcc1f37e807d7387560b7b35074b22258e
parent9e41bff2708e420e61e6b89a54c15232857069b1 (diff)
x86/voyager: fix compile breakage caused by dc1e35c6e95e8923cf1d3510438b63c600fee1e2
Impact: build fix on x86/Voyager Given commits like this: | Author: Suresh Siddha <suresh.b.siddha@intel.com> | Date: Tue Jul 29 10:29:19 2008 -0700 | | x86, xsave: enable xsave/xrstor on cpus with xsave support Which deliberately expose boot cpu dependence to pieces of the system, I think it's time to explicitly have a variable for it to prevent this continual misassumption that the boot CPU is zero. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--arch/x86/Kconfig4
-rw-r--r--arch/x86/include/asm/smp.h6
-rw-r--r--arch/x86/kernel/cpu/common.c2
3 files changed, 11 insertions, 1 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 350bee1d54d..2a40c4c6dd7 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -231,6 +231,10 @@ config SMP
If you don't know what to do here, say N.
+config X86_HAS_BOOT_CPU_ID
+ def_bool y
+ depends on X86_VOYAGER
+
config X86_FIND_SMP_CONFIG
def_bool y
depends on X86_MPPARSE || X86_VOYAGER
diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h
index 2766021aef8..d12811ce51d 100644
--- a/arch/x86/include/asm/smp.h
+++ b/arch/x86/include/asm/smp.h
@@ -225,5 +225,11 @@ static inline int hard_smp_processor_id(void)
#endif /* CONFIG_X86_LOCAL_APIC */
+#ifdef CONFIG_X86_HAS_BOOT_CPU_ID
+extern unsigned char boot_cpu_id;
+#else
+#define boot_cpu_id 0
+#endif
+
#endif /* __ASSEMBLY__ */
#endif /* _ASM_X86_SMP_H */
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 25581dcb280..93e9393ea64 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -1134,7 +1134,7 @@ void __cpuinit cpu_init(void)
/*
* Boot processor to setup the FP and extended state context info.
*/
- if (!smp_processor_id())
+ if (smp_processor_id() == boot_cpu_id)
init_thread_xstate();
xsave_init();