diff options
| author | Vasant Hegde <hegdevasant@linux.vnet.ibm.com> | 2013-08-12 17:35:57 +0530 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-08-14 15:33:17 +1000 |
| commit | 15863ff3b8dae4cacd831ce10aa34992e9ababb0 (patch) | |
| tree | b061c136ecd6204ce9084f4e4d4232b5404e8b39 /arch/powerpc/include/asm/smp.h | |
| parent | 202127031a14f244c15ae4434993d36bd10a439c (diff) | |
powerpc: Make chip-id information available to userspace
So far "/sys/devices/system/cpu/cpuX/topology/physical_package_id"
was always default (-1) on ppc64 architecture.
Now, some systems have an ibm,chip-id property in the cpu nodes in
the device tree. On these systems, we now use this information to
display physical_package_id.
Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
Signed-off-by: Shivaprasad G Bhat <sbhat@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include/asm/smp.h')
| -rw-r--r-- | arch/powerpc/include/asm/smp.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/smp.h b/arch/powerpc/include/asm/smp.h index 9a5e71b0aea4..98da78e0c2c0 100644 --- a/arch/powerpc/include/asm/smp.h +++ b/arch/powerpc/include/asm/smp.h @@ -112,6 +112,7 @@ static inline struct cpumask *cpu_core_mask(int cpu) } extern int cpu_to_core_id(int cpu); +extern int cpu_to_chip_id(int cpu); /* Since OpenPIC has only 4 IPIs, we use slightly different message numbers. * |