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From 9faf09f9851fafd50b96b59d7eac77fcd1b641d7 Mon Sep 17 00:00:00 2001
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From: Chandni Verma <chandni@linux.vnet.ibm.com>
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Date: Thu, 20 Oct 2016 14:23:50 +0530
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Subject: [PATCH 23/43] devtree: Fix physical ID info for CPU nodes
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'reg' property contains processor core id. Use this info to fill
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processor physical ID. This is useful to map processor core to
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sysfs entry in cpufreq.cc code.
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Signed-off-by: Chandni Verma <chandni@linux.vnet.ibm.com>
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[Splited original patch and updated description - Vasant]
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Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
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---
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src/core/device-tree.cc | 4 ++++
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1 file changed, 4 insertions(+)
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diff --git a/src/core/device-tree.cc b/src/core/device-tree.cc
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index c60e49c..9c74e5a 100644
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--- a/src/core/device-tree.cc
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+++ b/src/core/device-tree.cc
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@@ -473,6 +473,7 @@ static void scan_devtree_cpu_power(hwNode & core)
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{
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uint32_t l2_key = 0;
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uint32_t version = 0;
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+ uint32_t reg;
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string basepath = string(DEVICETREE "/cpus/") + string(namelist[i]->d_name);
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hwNode cpu("cpu", hw::processor);
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@@ -491,6 +492,9 @@ static void scan_devtree_cpu_power(hwNode & core)
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cpu.setDescription("CPU");
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set_cpu(cpu, currentcpu++, basepath);
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+ reg = get_u32(basepath + "/reg");
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+ cpu.setPhysId(tostring(reg));
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+
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version = get_u32(basepath + "/cpu-version");
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if (version != 0)
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cpu.setVersion(tostring(version));
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--
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2.10.2
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