diff options
| -rw-r--r-- | sys/sys/cpu.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/sys/sys/cpu.h b/sys/sys/cpu.h index 21e79e6db6a4..9156fa9f723d 100644 --- a/sys/sys/cpu.h +++ b/sys/sys/cpu.h @@ -51,6 +51,17 @@ cpu_get_pcpu(device_t dev) return ((struct pcpu *)v); } +/* + * Assumes the parent bus sets the CPU_IVAR_PCPU instance variable, which most + * CPU buses do. A panic will ensure if not the case. Calling devices should + * check for that condition (most probably in their attach function). + */ +static __inline u_int +cpu_get_pcpuid(device_t dev) +{ + return (cpu_get_pcpu(dev)->pc_cpuid); +} + static __inline int32_t cpu_get_nominal_mhz(device_t dev) { |