diff options
Diffstat (limited to 'arch/powerpc/platforms/powernv/opal-imc.c')
| -rw-r--r-- | arch/powerpc/platforms/powernv/opal-imc.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/powernv/opal-imc.c b/arch/powerpc/platforms/powernv/opal-imc.c index b150f4deaccf..465ea105b771 100644 --- a/arch/powerpc/platforms/powernv/opal-imc.c +++ b/arch/powerpc/platforms/powernv/opal-imc.c @@ -153,6 +153,22 @@ static void disable_core_pmu_counters(void) put_online_cpus(); } +int get_max_nest_dev(void) +{ + struct device_node *node; + u32 pmu_units = 0, type; + + for_each_compatible_node(node, NULL, IMC_DTB_UNIT_COMPAT) { + if (of_property_read_u32(node, "type", &type)) + continue; + + if (type == IMC_TYPE_CHIP) + pmu_units++; + } + + return pmu_units; +} + static int opal_imc_counters_probe(struct platform_device *pdev) { struct device_node *imc_dev = pdev->dev.of_node; |