8935dced54
The mapping is a simple "(cpuid >> 2) == core" for now. Later we'll add more sophisticated code that will walk the sun4v machine description and figure this out from there. We should also add core mappings for jaguar and panther processors. Signed-off-by: David S. Miller <davem@davemloft.net>
57 lines
1 KiB
C
57 lines
1 KiB
C
/* smp.h: Sparc64 specific SMP stuff.
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*
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* Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
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*/
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#ifndef _SPARC64_SMP_H
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#define _SPARC64_SMP_H
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#include <linux/config.h>
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#include <linux/threads.h>
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#include <asm/asi.h>
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#include <asm/starfire.h>
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#include <asm/spitfire.h>
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#ifndef __ASSEMBLY__
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#include <linux/cpumask.h>
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#include <linux/cache.h>
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#endif /* !(__ASSEMBLY__) */
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#ifdef CONFIG_SMP
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#ifndef __ASSEMBLY__
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/*
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* Private routines/data
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*/
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#include <asm/bitops.h>
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#include <asm/atomic.h>
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extern cpumask_t phys_cpu_present_map;
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#define cpu_possible_map phys_cpu_present_map
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extern cpumask_t cpu_sibling_map[NR_CPUS];
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/*
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* General functions that each host system must provide.
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*/
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extern int hard_smp_processor_id(void);
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#define raw_smp_processor_id() (current_thread_info()->cpu)
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extern void smp_setup_cpu_possible_map(void);
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#endif /* !(__ASSEMBLY__) */
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#else
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#define smp_setup_cpu_possible_map() do { } while (0)
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#endif /* !(CONFIG_SMP) */
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#define NO_PROC_ID 0xFF
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#endif /* !(_SPARC64_SMP_H) */
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