7f11d8a5ef
IO-APIC or local APIC can only be disabled at runtime anyways and Kconfig has forced these options on for a long time now. The Kconfigs are kept only now for the benefit of the shared acpi boot.c code. Signed-off-by: Andi Kleen <ak@suse.de>
107 lines
2.7 KiB
C
107 lines
2.7 KiB
C
#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)
|
|
cpu_relax();
|
|
}
|
|
|
|
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
|
|
#define K8_APIC_EXT_LVT_ENTRY_THRESHOLD 0
|
|
|
|
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);
|
|
|
|
#define ARCH_APICTIMER_STOPS_ON_C3 1
|
|
|
|
extern unsigned boot_cpu_id;
|
|
|
|
#endif /* __ASM_APIC_H */
|