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freebsd-dev/sys/i386/include/smp.h

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Man the liferafts! Here comes the long awaited SMP -> -current merge! There are various options documented in i386/conf/LINT, there is more to come over the next few days. The kernel should run pretty much "as before" without the options to activate SMP mode. There are a handful of known "loose ends" that need to be fixed, but have been put off since the SMP kernel is in a moderately good condition at the moment. This commit is the result of the tinkering and testing over the last 14 months by many people. A special thanks to Steve Passe for implementing the APIC code!
1997-04-26 11:46:25 +00:00
/*
* ----------------------------------------------------------------------------
* "THE BEER-WARE LICENSE" (Revision 42):
* <phk@FreeBSD.org> wrote this file. As long as you retain this notice you
* can do whatever you want with this stuff. If we meet some day, and you think
* this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
* ----------------------------------------------------------------------------
*
remove all the SMP_INVLTLB defines, making the code default for APIC_IO. Reviewed by: informal discussion with Peter Wemm <peter@spinner.DIALix.COM>
1997-04-28 00:25:00 +00:00
* $Id: smp.h,v 1.1 1997/04/26 11:45:44 peter Exp $
Man the liferafts! Here comes the long awaited SMP -> -current merge! There are various options documented in i386/conf/LINT, there is more to come over the next few days. The kernel should run pretty much "as before" without the options to activate SMP mode. There are a handful of known "loose ends" that need to be fixed, but have been put off since the SMP kernel is in a moderately good condition at the moment. This commit is the result of the tinkering and testing over the last 14 months by many people. A special thanks to Steve Passe for implementing the APIC code!
1997-04-26 11:46:25 +00:00
*
*/
#ifndef _MACHINE_SMP_H_
#define _MACHINE_SMP_H_
#ifdef KERNEL
#include "opt_smp.h"
#if defined(SMP) && !defined(NCPU)
# define NCPU 2
#endif /* SMP && NCPU */
#if defined(SMP) || defined(APIC_IO)
/* global data in mpboot.s */
extern int bootMP_size;
/* functions in mpboot.s */
void bootMP __P((void));
/* global data in mplock.s */
extern u_int mp_lock;
/* functions in mplock.s */
void get_mplock __P((void));
void rel_mplock __P((void));
void expect_mplock __P((void));
/* global data in mp_machdep.c */
extern struct proc* SMPcurproc[NCPU];
extern struct pcb* SMPcurpcb[NCPU];
extern struct timeval SMPruntime[NCPU];
extern int mp_ncpus;
extern int mp_naps;
extern int mp_nbusses;
extern int mp_napics;
extern int mp_picmode;
extern int mpenabled;
extern int boot_cpu_id;
extern vm_offset_t cpu_apic_address;
extern vm_offset_t io_apic_address[];
extern u_int32_t cpu_apic_versions[];
extern u_int32_t io_apic_versions[];
extern int cpu_num_to_apic_id[];
extern int io_num_to_apic_id[];
extern int apic_id_to_logical[];
/* functions in mp_machdep.c */
u_int mp_bootaddress __P((u_int));
void mp_start __P((void));
void mp_announce __P((void));
int get_isa_apic_irq __P((int));
int get_eisa_apic_irq __P((int));
int get_pci_apic_irq __P((int, int, int));
int undirect_pci_irq __P((int));
int apic_bus_type __P((int));
int apic_src_bus_id __P((int, int));
int apic_src_bus_irq __P((int, int));
int apic_int_type __P((int, int));
int apic_trigger __P((int, int));
int apic_polarity __P((int, int));
void configure_local_apic __P((void));
void init_secondary __P((void));
void smp_invltlb __P((void));
/* global data in mpapic.c */
extern volatile u_int* apic_base;
#if defined(MULTIPLE_IOAPICS)
#error MULTIPLE_IOAPICSXXX
#else
extern volatile u_int* io_apic_base;
#endif /* MULTIPLE_IOAPICS */
/* functions in mpapic.c */
void apic_initialize __P((int));
int selected_apic_ipi __P((u_int, int, int));
int io_apic_setup __P((int));
int ext_int_setup __P((int, int));
void write_io_apic_mask24 __P((int, u_int32_t));
#if defined(READY)
void clr_io_apic_mask24 __P((int, u_int32_t));
void set_io_apic_mask24 __P((int, u_int32_t));
#endif /* READY */
void set_apic_timer __P((int));
int read_apic_timer __P((void));
void u_sleep __P((int));
/* global data in init_smp.c */
extern int smp_active;
remove all the SMP_INVLTLB defines, making the code default for APIC_IO. Reviewed by: informal discussion with Peter Wemm <peter@spinner.DIALix.COM>
1997-04-28 00:25:00 +00:00
extern int invltlb_ok;
Man the liferafts! Here comes the long awaited SMP -> -current merge! There are various options documented in i386/conf/LINT, there is more to come over the next few days. The kernel should run pretty much "as before" without the options to activate SMP mode. There are a handful of known "loose ends" that need to be fixed, but have been put off since the SMP kernel is in a moderately good condition at the moment. This commit is the result of the tinkering and testing over the last 14 months by many people. A special thanks to Steve Passe for implementing the APIC code!
1997-04-26 11:46:25 +00:00
/* in pmap.c FIXME: belongs in pmap.h??? */
void pmap_bootstrap_apics __P((void));
void pmap_bootstrap2 __P((void));
#if 0
/* chicken and egg problem... */
static __inline unsigned
cpunumber(void)
{
return (unsigned)ID_TO_CPU((apic_base[APIC_ID] & APIC_ID_MASK) >> 24);
}
#else
/*
* we 'borrow' this info from apic.h
* this will go away soon...
*/
static __inline unsigned
cpunumber(void)
{
return (unsigned)(apic_id_to_logical[(apic_base[8] & 0x0f000000) >> 24]);
}
#endif /* 0 */
#endif /* SMP || APIC_IO */
#endif /* KERNEL */
#endif /* _MACHINE_SMP_H_ */
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