2005-04-17 06:20:36 +08:00
|
|
|
#ifndef __ASM_SMP_H
|
|
|
|
|
#define __ASM_SMP_H
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* We need the APIC definitions automatically as part of 'smp.h'
|
|
|
|
|
*/
|
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
|
#include <linux/config.h>
|
|
|
|
|
#include <linux/kernel.h>
|
|
|
|
|
#include <linux/threads.h>
|
|
|
|
|
#include <linux/cpumask.h>
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#ifdef CONFIG_X86_LOCAL_APIC
|
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
|
#include <asm/fixmap.h>
|
|
|
|
|
#include <asm/bitops.h>
|
|
|
|
|
#include <asm/mpspec.h>
|
|
|
|
|
#ifdef CONFIG_X86_IO_APIC
|
|
|
|
|
#include <asm/io_apic.h>
|
|
|
|
|
#endif
|
|
|
|
|
#include <asm/apic.h>
|
|
|
|
|
#endif
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#define BAD_APICID 0xFFu
|
|
|
|
|
#ifdef CONFIG_SMP
|
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Private routines/data
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
extern void smp_alloc_memory(void);
|
|
|
|
|
extern int pic_mode;
|
|
|
|
|
extern int smp_num_siblings;
|
|
|
|
|
extern cpumask_t cpu_sibling_map[];
|
2005-04-17 06:25:15 +08:00
|
|
|
extern cpumask_t cpu_core_map[];
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
|
extern void smp_flush_tlb(void);
|
|
|
|
|
extern void smp_message_irq(int cpl, void *dev_id, struct pt_regs *regs);
|
|
|
|
|
extern void smp_invalidate_rcv(void); /* Process an NMI */
|
|
|
|
|
extern void (*mtrr_hook) (void);
|
|
|
|
|
extern void zap_low_mappings (void);
|
|
|
|
|
|
|
|
|
|
#define MAX_APICID 256
|
|
|
|
|
extern u8 x86_cpu_to_apicid[];
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* This function is needed by all SMP systems. It must _always_ be valid
|
|
|
|
|
* from the initial startup. We map APIC_BASE very early in page_setup(),
|
|
|
|
|
* so this is correct in the x86 case.
|
|
|
|
|
*/
|
|
|
|
|
#define __smp_processor_id() (current_thread_info()->cpu)
|
|
|
|
|
|
|
|
|
|
extern cpumask_t cpu_callout_map;
|
|
|
|
|
extern cpumask_t cpu_callin_map;
|
|
|
|
|
#define cpu_possible_map cpu_callout_map
|
|
|
|
|
|
|
|
|
|
/* We don't mark CPUs online until __cpu_up(), so we need another measure */
|
|
|
|
|
static inline int num_booting_cpus(void)
|
|
|
|
|
{
|
|
|
|
|
return cpus_weight(cpu_callout_map);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#ifdef CONFIG_X86_LOCAL_APIC
|
|
|
|
|
|
|
|
|
|
#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(*(unsigned long *)(APIC_BASE+APIC_ID));
|
|
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
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(*(unsigned long *)(APIC_BASE+APIC_LDR));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#endif
|
|
|
|
|
#endif /* !__ASSEMBLY__ */
|
|
|
|
|
|
|
|
|
|
#define NO_PROC_ID 0xFF /* No processor magic marker */
|
|
|
|
|
|
|
|
|
|
#endif
|
|
|
|
|
#endif
|
