procfs cpuinfo: use sequence number as processor

Change-Id: Id54ea74c5fda198a0bb9c9b6a19e6799fee0ed3f

arch/arm64/kernel/cpu.c

@@ -1279,7 +1279,7 @@ long ihk_mc_show_cpuinfo(char *buf, size_t buf_size, unsigned long read_off, int
 
 		/* generate strings */
 		loff += scnprintf(lbuf + loff, lbuf_size - loff,
-				  "processor\t: %d\n", cpuinfo->hwid);
+				  "processor\t: %d\n", i);
 		loff += scnprintf(lbuf + loff, lbuf_size - loff, "Features\t:");
 
 		for (j = 0; hwcap_str[j]; j++) {

test/issues/1457/C1457.py

@@ -0,0 +1,63 @@
+#
+# Test script for issue #1439
+#
+
+import os
+import sys
+import subprocess
+
+def get_command_result(cmd):
+    results = subprocess.Popen(
+        cmd, stdout=subprocess.PIPE,
+        shell=True).stdout.readlines()
+    return [str(x).rstrip("\n") for x in results]
+
+def enumerate_cpu(cpu_list):
+    allcpus = []
+    for ranged_cpu in cpu_list.split(','):
+        try:
+            cpu_begin, cpu_end = ranged_cpu.split('-')
+        except ValueError:
+            cpu_begin = cpu_end = ranged_cpu
+        for i in range(int(cpu_begin), int(cpu_end) + 1):
+            allcpus.append(i)
+    allcpus.sort()
+    return allcpus
+
+def get_online_cpu():
+    online_file = open('/sys/devices/system/cpu/online', 'r')
+    return online_file.readlines()[0].strip()
+
+def get_cpuinfo_processors():
+    processors = []
+    cpuinfo_file = open('/proc/cpuinfo', 'r')
+    for line in cpuinfo_file.readlines():
+        if line.startswith('processor'):
+            processor = int(line.strip().split()[-1])
+            processors.append(processor)
+    return processors
+
+def main():
+    onlines = enumerate_cpu(get_online_cpu())
+    processors = get_cpuinfo_processors()
+
+    print '# of online cpus:', len(onlines)
+    print '# of cpuinfo processors:', len(processors)
+    if len(onlines) != len(processors):
+        print 'ERROR: # of processors is not equal to # of cpus'
+        print 'FAIL'
+        exit()
+
+    i = 0
+    for cpu in processors:
+        print i, 'processor:', cpu
+        if i != cpu:
+            print 'ERROR: processor number is not ordered'
+            print 'FAIL'
+            exit()
+        i = i + 1
+
+    print 'SUCCESS'
+
+if __name__ == '__main__':
+    main()

test/issues/1457/C1457.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+. ${HOME}/.mck_test_config
+export MCK_DIR
+sudo ${MCK_DIR}/sbin/mcreboot.sh 1,3,5,7,9-12,50-58
+${MCK_DIR}/bin/mcexec python C1457.py
+sudo ${MCK_DIR}/sbin/mcstop+release.sh

test/issues/1457/Makefile

@@ -0,0 +1,2 @@
+test::
+	./C1457.shy

test/issues/1457/README

@@ -0,0 +1,22 @@
+□ テスト内容
+
+arm64環境における/proc/cpuinfoについて、以下を確かめる。
+
+(1) "processor" フィールドが/sys/devices/system/cpu/onlineファイルが示す
+CPUの数だけ存在すること。
+(2) "processor" フィールドの値が0からはじまる連番であること。
+
+
+□ 実行手順
+
+(1) $HOME/.mck_test_configを、MCK_DIRがMcKernelのインストール先を指すように編集する
+(2) 以下を実行する
+
+$ make test
+
+
+□ 確認方法
+
+標準出力にSUCCESSが出力されること
+
+

test/issues/1457/aarch64_result.log

@@ -0,0 +1,31 @@
+# of online cpus: 28
+# of cpuinfo processors: 28
+0 processor: 0
+1 processor: 1
+2 processor: 2
+3 processor: 3
+4 processor: 4
+5 processor: 5
+6 processor: 6
+7 processor: 7
+8 processor: 8
+9 processor: 9
+10 processor: 10
+11 processor: 11
+12 processor: 12
+13 processor: 13
+14 processor: 14
+15 processor: 15
+16 processor: 16
+17 processor: 17
+18 processor: 18
+19 processor: 19
+20 processor: 20
+21 processor: 21
+22 processor: 22
+23 processor: 23
+24 processor: 24
+25 processor: 25
+26 processor: 26
+27 processor: 27
+SUCCESS