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| author | Michael Bringmann <mwb@linux.vnet.ibm.com> | 2017-09-08 23:47:36 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-10-16 15:12:03 +0300 |
| commit | a3496e9137f6f58439da29a761725e083229c4a8 (patch) | |
| tree | a50ea630dee06d6296568eb0f4134815a31ff003 /arch/powerpc/mm/numa.c | |
| parent | 17f444c0549f2ce037646871e748cf2dc375bce9 (diff) | |
| download | linux-a3496e9137f6f58439da29a761725e083229c4a8.tar.xz | |
powerpc/vphn: Improve recognition of PRRN/VPHN
powerpc/vphn: On Power systems with shared configurations of CPUs
and memory, there are some issues with the association of additional
CPUs and memory to nodes when hot-adding resources. This patch
updates the initialization checks to independently recognize PRRN
or VPHN support.
Signed-off-by: Michael Bringmann <mwb@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/mm/numa.c')
| -rw-r--r-- | arch/powerpc/mm/numa.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c index 3ae031d437a6..5f5ff46ae76d 100644 --- a/arch/powerpc/mm/numa.c +++ b/arch/powerpc/mm/numa.c @@ -1531,15 +1531,14 @@ int start_topology_update(void) if (firmware_has_feature(FW_FEATURE_PRRN)) { if (!prrn_enabled) { prrn_enabled = 1; - vphn_enabled = 0; #ifdef CONFIG_SMP rc = of_reconfig_notifier_register(&dt_update_nb); #endif } - } else if (firmware_has_feature(FW_FEATURE_VPHN) && + } + if (firmware_has_feature(FW_FEATURE_VPHN) && lppaca_shared_proc(get_lppaca())) { if (!vphn_enabled) { - prrn_enabled = 0; vphn_enabled = 1; setup_cpu_associativity_change_counters(); init_timer_deferrable(&topology_timer); @@ -1562,7 +1561,8 @@ int stop_topology_update(void) #ifdef CONFIG_SMP rc = of_reconfig_notifier_unregister(&dt_update_nb); #endif - } else if (vphn_enabled) { + } + if (vphn_enabled) { vphn_enabled = 0; rc = del_timer_sync(&topology_timer); } |