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#ifndef __ASM_APIC_H
#define __ASM_APIC_H
#include <linux/pm.h>
#include <asm/fixmap.h>
#include <asm/apicdef.h>
#include <asm/system.h>
#define Dprintk(x...)
* Debugging macros
#define APIC_QUIET 0
#define APIC_VERBOSE 1
#define APIC_DEBUG 2
extern int apic_verbosity;
extern int apic_runs_main_timer;
* Define the default level of output to be very little
* This can be turned up by using apic=verbose for more
* information and apic=debug for _lots_ of information.
* apic_verbosity is defined in apic.c
#define apic_printk(v, s, a...) do { \
if ((v) <= apic_verbosity) \
printk(s, ##a); \
} while (0)
struct pt_regs;
* Basic functions accessing APICs.
static __inline void apic_write(unsigned long reg, unsigned int v)
*((volatile unsigned int *)(APIC_BASE+reg)) = v;
static __inline unsigned int apic_read(unsigned long reg)
return *((volatile unsigned int *)(APIC_BASE+reg));
static __inline__ void apic_wait_icr_idle(void)
while (apic_read( APIC_ICR ) & APIC_ICR_BUSY)
static inline void ack_APIC_irq(void)
* ack_APIC_irq() actually gets compiled as a single instruction:
* - a single rmw on Pentium/82489DX
* - a single write on P6+ cores (CONFIG_X86_GOOD_APIC)
* ... yummie.
/* Docs say use 0 for future compatibility */
apic_write(APIC_EOI, 0);
extern int get_maxlvt (void);
extern void clear_local_APIC (void);
extern void connect_bsp_APIC (void);
extern void disconnect_bsp_APIC (int virt_wire_setup);
extern void disable_local_APIC (void);
extern int verify_local_APIC (void);
extern void cache_APIC_registers (void);
extern void sync_Arb_IDs (void);
extern void init_bsp_APIC (void);
extern void setup_local_APIC (void);
extern void init_apic_mappings (void);
extern void smp_local_timer_interrupt (struct pt_regs * regs);
extern void setup_boot_APIC_clock (void);
extern void setup_secondary_APIC_clock (void);
extern int APIC_init_uniprocessor (void);
extern void disable_APIC_timer(void);
extern void enable_APIC_timer(void);
extern void clustered_apic_check(void);
extern void setup_APIC_extened_lvt(unsigned char lvt_off, unsigned char vector,
unsigned char msg_type, unsigned char mask);
#define K8_APIC_EXT_LVT_BASE 0x500
#define K8_APIC_EXT_INT_MSG_FIX 0x0
#define K8_APIC_EXT_INT_MSG_SMI 0x2
#define K8_APIC_EXT_INT_MSG_NMI 0x4
#define K8_APIC_EXT_INT_MSG_EXT 0x7
extern int disable_timer_pin_1;
void smp_send_timer_broadcast_ipi(void);
void switch_APIC_timer_to_ipi(void *cpumask);
void switch_ipi_to_APIC_timer(void *cpumask);
#endif /* CONFIG_X86_LOCAL_APIC */
extern unsigned boot_cpu_id;
#endif /* __ASM_APIC_H */