From: Nathan Lynch <nath...@linux.ibm.com>
The pseries platform has been LPAR-only for several generations, and
the PAPR spec:
* Guarantees that timebase synchronization is performed by
the platform ("The timebase registers are synchronized by the
platform before CPUs are given to the OS" - 7.3.8 SMP Support).
* Completely omits the RTAS freeze-time-base and thaw-time-base RTAS
functions, which are CHRP artifacts.
This code is effectively unused on currently supported models, so drop
it.
Signed-off-by: Nathan Lynch <nath...@linux.ibm.com>
---
arch/powerpc/platforms/pseries/smp.c | 6 ------
1 file changed, 6 deletions(-)
diff --git a/arch/powerpc/platforms/pseries/smp.c
b/arch/powerpc/platforms/pseries/smp.c
index fd2174edfa1d..2bcfee86ff87 100644
--- a/arch/powerpc/platforms/pseries/smp.c
+++ b/arch/powerpc/platforms/pseries/smp.c
@@ -278,11 +278,5 @@ void __init smp_init_pseries(void)
cpumask_clear_cpu(boot_cpuid, of_spin_mask);
}
- /* Non-lpar has additional take/give timebase */
- if (rtas_token("freeze-time-base") != RTAS_UNKNOWN_SERVICE) {
- smp_ops->give_timebase = rtas_give_timebase;
- smp_ops->take_timebase = rtas_take_timebase;
- }
-
pr_debug(" <- smp_init_pSeries()\n");
}
--
2.39.1
