| Message ID | 20230110042845.121792-1-nathanl@linux.ibm.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | powerpc/pseries: drop RTAS-based timebase synchronization | expand |
| Context | Check | Description |
|---|---|---|
| snowpatch_ozlabs/github-powerpc_ppctests | success | Successfully ran 8 jobs. |
| snowpatch_ozlabs/github-powerpc_selftests | success | Successfully ran 8 jobs. |
| snowpatch_ozlabs/github-powerpc_clang | success | Successfully ran 6 jobs. |
| snowpatch_ozlabs/github-powerpc_sparse | success | Successfully ran 4 jobs. |
| snowpatch_ozlabs/github-powerpc_kernel_qemu | success | Successfully ran 24 jobs. |
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"); }
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 <nathanl@linux.ibm.com> --- arch/powerpc/platforms/pseries/smp.c | 6 ------ 1 file changed, 6 deletions(-)