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yaml
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r: 79742
b: refs/heads/master
c: 67c5fc5
h: refs/heads/master
v: v3
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Thomas Gleixner authored and Ingo Molnar committed Jan 30, 2008
1 parent a2e6ba1 commit 60f8078
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2 changes: 1 addition & 1 deletion [refs]
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---
refs/heads/master: 42e0a9aa5d467188687c6b705412578e53c14af6
refs/heads/master: 67c5fc5c330f63360e26609534b219df1aaa03ca
140 changes: 137 additions & 3 deletions trunk/include/asm-x86/apic.h
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#ifdef CONFIG_X86_32
# include "apic_32.h"
#ifndef _ASM_X86_APIC_H
#define _ASM_X86_APIC_H

#include <linux/pm.h>
#include <linux/delay.h>
#include <asm/fixmap.h>
#include <asm/apicdef.h>
#include <asm/processor.h>
#include <asm/system.h>

#define ARCH_APICTIMER_STOPS_ON_C3 1

#define Dprintk(x...)

/*
* Debugging macros
*/
#define APIC_QUIET 0
#define APIC_VERBOSE 1
#define APIC_DEBUG 2

/*
* 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)


extern void generic_apic_probe(void);

#ifdef CONFIG_X86_LOCAL_APIC

extern int apic_verbosity;
extern int timer_over_8254;
extern int local_apic_timer_c2_ok;
extern int local_apic_timer_disabled;

extern int apic_runs_main_timer;
extern int ioapic_force;
extern int disable_apic_timer;
extern unsigned boot_cpu_id;

/*
* Basic functions accessing APICs.
*/
#ifdef CONFIG_PARAVIRT
#include <asm/paravirt.h>
#else
# include "apic_64.h"
#define apic_write native_apic_write
#define apic_write_atomic native_apic_write_atomic
#define apic_read native_apic_read
#define setup_boot_clock setup_boot_APIC_clock
#define setup_secondary_clock setup_secondary_APIC_clock
#endif

static inline fastcall void native_apic_write(unsigned long reg, u32 v)
{
*((volatile u32 *)(APIC_BASE + reg)) = v;
}

static inline fastcall void native_apic_write_atomic(unsigned long reg, u32 v)
{
(void) xchg((u32*)(APIC_BASE + reg), v);
}

static inline fastcall u32 native_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);
extern int get_physical_broadcast(void);

#ifdef CONFIG_X86_GOOD_APIC
# define FORCE_READ_AROUND_WRITE 0
# define apic_read_around(x)
# define apic_write_around(x, y) apic_write((x), (y))
#else
# define FORCE_READ_AROUND_WRITE 1
# define apic_read_around(x) apic_read(x)
# define apic_write_around(x, y) apic_write_atomic((x), (y))
#endif

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_around(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 enable_NMI_through_LVT0(void *dummy);

/*
* On 32bit this is mach-xxx local
*/
#ifdef CONFIG_X86_64
extern void setup_apic_routing(void);
#endif

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);

#else /* !CONFIG_X86_LOCAL_APIC */
static inline void lapic_shutdown(void) { }
#define local_apic_timer_c2_ok 1

#endif /* !CONFIG_X86_LOCAL_APIC */

#endif /* __ASM_APIC_H */
122 changes: 0 additions & 122 deletions trunk/include/asm-x86/apic_32.h

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95 changes: 0 additions & 95 deletions trunk/include/asm-x86/apic_64.h

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