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powerpc/cpumask: Dynamically allocate cpu_sibling_map and cpu_core_map cpumasks

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Dynamically allocate cpu_sibling_map and cpu_core_map cpumasks.

We don't need to set_cpu_online() the boot cpu in smp_prepare_boot_cpu,
init/main.c does it for us.

We also postpone setting of the boot cpu in cpu_sibling_map and cpu_core_map
until when the memory allocator is available (smp_prepare_cpus), similar
to x86.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Anton Blanchard
2010-04-26 15:32:41 +00:00
committed by Benjamin Herrenschmidt
parent e6532c63cc
commit cc1ba8ea6d
4 changed files with 40 additions and 24 deletions
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16
arch/powerpc/include/asm/smp.h
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@@ -68,8 +68,19 @@ static inline void set_hard_smp_processor_id(int cpu, int phys)
}
#endif
DECLARE_PER_CPU(cpumask_t, cpu_sibling_map);
DECLARE_PER_CPU(cpumask_t, cpu_core_map);
DECLARE_PER_CPU(cpumask_var_t, cpu_sibling_map);
DECLARE_PER_CPU(cpumask_var_t, cpu_core_map);
static inline struct cpumask *cpu_sibling_mask(int cpu)
{
return per_cpu(cpu_sibling_map, cpu);
}
static inline struct cpumask *cpu_core_mask(int cpu)
{
return per_cpu(cpu_core_map, cpu);
}
extern int cpu_to_core_id(int cpu);
/* Since OpenPIC has only 4 IPIs, we use slightly different message numbers.
@@ -93,7 +104,6 @@ void smp_init_pSeries(void);
void smp_init_cell(void);
void smp_init_celleb(void);
void smp_setup_cpu_maps(void);
void smp_setup_cpu_sibling_map(void);
extern int __cpu_disable(void);
extern void __cpu_die(unsigned int cpu);