diff options
Diffstat (limited to 'arch/powerpc/kernel/smp.c')
| -rw-r--r-- | arch/powerpc/kernel/smp.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c index 009900dd8f25..d9d8bb0f4454 100644 --- a/arch/powerpc/kernel/smp.c +++ b/arch/powerpc/kernel/smp.c @@ -596,6 +596,21 @@ out: return id; } +/* Return the value of the chip-id property corresponding + * to the given logical cpu. + */ +int cpu_to_chip_id(int cpu) +{ + struct device_node *np; + + np = of_get_cpu_node(cpu, NULL); + if (!np) + return -1; + + of_node_put(np); + return of_get_ibm_chip_id(np); +} + /* Helper routines for cpu to core mapping */ int cpu_core_index_of_thread(int cpu) { |