From 4df20460a3ff0d60280738b094945c56cb5567a5 Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Sat, 25 Mar 2006 17:25:17 +1100 Subject: [PATCH] powerpc: Allow non zero boot cpuids We currently have a hack to flip the boot cpu and its secondary thread to logical cpuid 0 and 1. This means the logical - physical mapping will differ depending on which cpu is boot cpu. This is most apparent on kexec, where we might kexec on any cpu and therefore change the mapping from boot to boot. The patch below does a first pass early on to work out the logical cpuid of the boot thread. We then fix up some paca structures to match. Ive also removed the boot_cpuid_phys variable for ppc64, to be consistent we use get_hard_smp_processor_id(boot_cpuid) everywhere. Signed-off-by: Anton Blanchard Signed-off-by: Paul Mackerras --- include/asm-powerpc/paca.h | 2 ++ include/asm-powerpc/smp.h | 2 +- 2 files changed, 3 insertions(+), 1 deletion(-) (limited to 'include/asm-powerpc') diff --git a/include/asm-powerpc/paca.h b/include/asm-powerpc/paca.h index 4465b95ebef0..706325f99a84 100644 --- a/include/asm-powerpc/paca.h +++ b/include/asm-powerpc/paca.h @@ -105,5 +105,7 @@ struct paca_struct { extern struct paca_struct paca[]; +void setup_boot_paca(void); + #endif /* __KERNEL__ */ #endif /* _ASM_POWERPC_PACA_H */ diff --git a/include/asm-powerpc/smp.h b/include/asm-powerpc/smp.h index 98581e5a8279..4a716f707cf6 100644 --- a/include/asm-powerpc/smp.h +++ b/include/asm-powerpc/smp.h @@ -29,7 +29,6 @@ #endif extern int boot_cpuid; -extern int boot_cpuid_phys; extern void cpu_die(void); @@ -99,6 +98,7 @@ extern void smp_release_cpus(void); #else /* 32-bit */ #ifndef CONFIG_SMP +extern int boot_cpuid_phys; #define get_hard_smp_processor_id(cpu) boot_cpuid_phys #define set_hard_smp_processor_id(cpu, phys) #endif -- cgit v1.2.3