#ifndef __ASM_APIC_H #define __ASM_APIC_H #include #include #include #include #include #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; extern int ioapic_force; extern int disable_apic_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, u32 v) { *((volatile unsigned int *)(APIC_BASE+reg)) = v; } static __inline u32 apic_read(unsigned long reg) { return *((volatile u32 *)(APIC_BASE+reg)); } extern void apic_wait_icr_idle(void); extern u32 safe_apic_wait_icr_idle(void); 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 lapic_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 void lapic_shutdown(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(void); extern void setup_boot_APIC_clock(void); extern void setup_secondary_APIC_clock(void); extern int APIC_init_uniprocessor(void); extern void setup_apic_routing(void); extern void setup_APIC_extended_lvt(unsigned char lvt_off, unsigned char vector, unsigned char msg_type, unsigned char mask); extern int apic_is_clustered_box(void); #define ARCH_APICTIMER_STOPS_ON_C3 1 extern unsigned boot_cpu_id; extern int local_apic_timer_c2_ok; #endif /* __ASM_APIC_H */