diff options
| author | jhb <jhb@FreeBSD.org> | 2003-12-03 14:55:31 +0000 |
|---|---|---|
| committer | jhb <jhb@FreeBSD.org> | 2003-12-03 14:55:31 +0000 |
| commit | 907202ec1f57f255a3cb7245df54cf0e74dc5e43 (patch) | |
| tree | 43e2b5c4b744220483a5d1abfee49180d1fc4324 /sys/sys/smp.h | |
| parent | e57603da9f15ad23d90b15e7ad5464e3b5398310 (diff) | |
| download | FreeBSD-src-907202ec1f57f255a3cb7245df54cf0e74dc5e43.zip FreeBSD-src-907202ec1f57f255a3cb7245df54cf0e74dc5e43.tar.gz | |
Export a few SMP related symbols in UP kernels as well. This is needed to
aid other kernel code, especially code which can be in a module such as
the acpi_cpu(4) driver, to work properly with both SMP and UP kernels.
The exported symbols include mp_ncpus, all_cpus, mp_maxid, smp_started, and
the smp_rendezvous() function. This also means that CPU_ABSENT() is now
always implemented the same on all kernels.
Approved by: re (scottl)
Diffstat (limited to 'sys/sys/smp.h')
| -rw-r--r-- | sys/sys/smp.h | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/sys/sys/smp.h b/sys/sys/smp.h index 24ef367..cd96ebe 100644 --- a/sys/sys/smp.h +++ b/sys/sys/smp.h @@ -45,14 +45,16 @@ struct cpu_top { extern struct cpu_top *smp_topology; extern void (*cpustop_restartfunc)(void); -extern int mp_ncpus; extern int smp_active; -extern volatile int smp_started; extern int smp_cpus; -extern u_int all_cpus; extern volatile u_int started_cpus; extern volatile u_int stopped_cpus; +#endif /* SMP */ + +extern u_int all_cpus; extern u_int mp_maxid; +extern int mp_ncpus; +extern volatile int smp_started; /* * Macro allowing us to determine whether a CPU is absent at any given @@ -61,6 +63,7 @@ extern u_int mp_maxid; */ #define CPU_ABSENT(x_cpu) ((all_cpus & (1 << (x_cpu))) == 0) +#ifdef SMP /* * Machine dependent functions used to initialize MP support. * @@ -92,13 +95,11 @@ void forward_roundrobin(void); int restart_cpus(u_int); int stop_cpus(u_int); void smp_rendezvous_action(void); +#endif /* SMP */ void smp_rendezvous(void (*)(void *), void (*)(void *), void (*)(void *), void *arg); -#else /* SMP */ -#define CPU_ABSENT(x_cpu) (0) -#endif /* SMP */ #endif /* !LOCORE */ #endif /* _KERNEL */ #endif /* _SYS_SMP_H_ */ |
