mirror of
https://github.com/torvalds/linux.git
synced 2024-11-22 12:11:40 +00:00
e94271017f
Its previous use in a call to on_each_cpu() was pointless, as at the time that code gets executed only one CPU is online. Further, the function can be __cpuinit, and for this to work without CONFIG_HOTPLUG_CPU setup_nmi() must also get an attribute (this one can even be __init; on 64-bits check_timer() also was lacking that attribute). Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
141 lines
3.5 KiB
C
141 lines
3.5 KiB
C
#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;
|
|
extern int disable_apic_timer;
|
|
extern unsigned boot_cpu_id;
|
|
|
|
/*
|
|
* Basic functions accessing APICs.
|
|
*/
|
|
#ifdef CONFIG_PARAVIRT
|
|
#include <asm/paravirt.h>
|
|
#else
|
|
#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 void native_apic_write(unsigned long reg, u32 v)
|
|
{
|
|
*((volatile u32 *)(APIC_BASE + reg)) = v;
|
|
}
|
|
|
|
static inline void native_apic_write_atomic(unsigned long reg, u32 v)
|
|
{
|
|
(void) xchg((u32*)(APIC_BASE + reg), v);
|
|
}
|
|
|
|
static inline 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 end_local_APIC_setup(void);
|
|
extern void init_apic_mappings(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);
|
|
|
|
/*
|
|
* On 32bit this is mach-xxx local
|
|
*/
|
|
#ifdef CONFIG_X86_64
|
|
extern void setup_apic_routing(void);
|
|
#endif
|
|
|
|
extern u8 setup_APIC_eilvt_mce(u8 vector, u8 msg_type, u8 mask);
|
|
extern u8 setup_APIC_eilvt_ibs(u8 vector, u8 msg_type, u8 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 */
|