The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/i386/include/smp.h

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    1 /*-
    2  * ----------------------------------------------------------------------------
    3  * "THE BEER-WARE LICENSE" (Revision 42):
    4  * <phk@FreeBSD.org> wrote this file.  As long as you retain this notice you
    5  * can do whatever you want with this stuff. If we meet some day, and you think
    6  * this stuff is worth it, you can buy me a beer in return.   Poul-Henning Kamp
    7  * ----------------------------------------------------------------------------
    8  *
    9  * $FreeBSD: stable/10/sys/i386/include/smp.h 264118 2014-04-04 14:54:54Z royger $
   10  *
   11  */
   12 
   13 #ifndef _MACHINE_SMP_H_
   14 #define _MACHINE_SMP_H_
   15 
   16 #ifdef _KERNEL
   17 
   18 #ifdef SMP
   19 
   20 #ifndef LOCORE
   21 
   22 #include <sys/bus.h>
   23 #include <machine/frame.h>
   24 #include <machine/intr_machdep.h>
   25 #include <machine/apicvar.h>
   26 #include <machine/pcb.h>
   27 
   28 /* global data in mpboot.s */
   29 extern int                      bootMP_size;
   30 
   31 /* functions in mpboot.s */
   32 void    bootMP(void);
   33 
   34 /* global data in mp_machdep.c */
   35 extern int                      mp_naps;
   36 extern int                      boot_cpu_id;
   37 extern struct pcb               stoppcbs[];
   38 extern int                      cpu_apic_ids[];
   39 #ifdef COUNT_IPIS
   40 extern u_long *ipi_invltlb_counts[MAXCPU];
   41 extern u_long *ipi_invlrng_counts[MAXCPU];
   42 extern u_long *ipi_invlpg_counts[MAXCPU];
   43 extern u_long *ipi_invlcache_counts[MAXCPU];
   44 extern u_long *ipi_rendezvous_counts[MAXCPU];
   45 extern u_long *ipi_lazypmap_counts[MAXCPU];
   46 #endif
   47 
   48 /* IPI handlers */
   49 inthand_t
   50         IDTVEC(invltlb),        /* TLB shootdowns - global */
   51         IDTVEC(invlpg),         /* TLB shootdowns - 1 page */
   52         IDTVEC(invlrng),        /* TLB shootdowns - page range */
   53         IDTVEC(invlcache),      /* Write back and invalidate cache */
   54         IDTVEC(ipi_intr_bitmap_handler), /* Bitmap based IPIs */ 
   55         IDTVEC(cpustop),        /* CPU stops & waits to be restarted */
   56         IDTVEC(cpususpend),     /* CPU suspends & waits to be resumed */
   57         IDTVEC(rendezvous),     /* handle CPU rendezvous */
   58         IDTVEC(lazypmap);       /* handle lazy pmap release */
   59 
   60 /* functions in mp_machdep.c */
   61 void    cpu_add(u_int apic_id, char boot_cpu);
   62 void    cpustop_handler(void);
   63 #ifndef XEN
   64 void    cpususpend_handler(void);
   65 #endif
   66 void    invltlb_handler(void);
   67 void    invlpg_handler(void);
   68 void    invlrng_handler(void);
   69 void    invlcache_handler(void);
   70 void    init_secondary(void);
   71 void    ipi_startup(int apic_id, int vector);
   72 void    ipi_all_but_self(u_int ipi);
   73 #ifndef XEN
   74 void    ipi_bitmap_handler(struct trapframe frame);
   75 #endif
   76 void    ipi_cpu(int cpu, u_int ipi);
   77 int     ipi_nmi_handler(void);
   78 void    ipi_selected(cpuset_t cpus, u_int ipi);
   79 u_int   mp_bootaddress(u_int);
   80 void    smp_cache_flush(void);
   81 void    smp_invlpg(vm_offset_t addr);
   82 void    smp_masked_invlpg(cpuset_t mask, vm_offset_t addr);
   83 void    smp_invlpg_range(vm_offset_t startva, vm_offset_t endva);
   84 void    smp_masked_invlpg_range(cpuset_t mask, vm_offset_t startva,
   85             vm_offset_t endva);
   86 void    smp_invltlb(void);
   87 void    smp_masked_invltlb(cpuset_t mask);
   88 
   89 #ifdef XEN
   90 void ipi_to_irq_init(void);
   91 #endif
   92 #endif /* !LOCORE */
   93 #endif /* SMP */
   94 
   95 #endif /* _KERNEL */
   96 #endif /* _MACHINE_SMP_H_ */

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