submodule/skia/tools/skpbench/_hardware_pixel_c.py

   1 # Copyright 2016 Google Inc.
   2 #
   3 # Use of this source code is governed by a BSD-style license that can be
   4 # found in the LICENSE file.
   5
   6 from _hardware import HardwareException, Expectation
   7 from _hardware_android import HardwareAndroid
   8
   9 CPU_CLOCK_RATE = 1326000
  10 # If you run adb cat /sys/devices/57000000.gpu/pstate it shows all
  11 # possible configurations, with a * next to the current one.
  12 GPU_EMC_PROFILE = '04: core 307 MHz emc 1065 MHz a A d D *'
  13 GPU_EMC_PROFILE_ID = '04'
  14
  15 class HardwarePixelC(HardwareAndroid):
  16   def __init__(self, adb):
  17     HardwareAndroid.__init__(self, adb)
  18
  19   def __enter__(self):
  20     HardwareAndroid.__enter__(self)
  21     if not self._adb.is_root():
  22       return self
  23
  24     self._adb.shell('\n'.join([
  25       # pylint: disable=line-too-long
  26       # Based on https://android.googlesource.com/platform/frameworks/base/+/master/libs/hwui/tests/scripts/prep_ryu.sh
  27       # All CPUs have the same scaling settings, so we only need to set it once
  28       '''
  29       stop thermal-engine
  30       stop perfd
  31
  32       echo userspace > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
  33       echo %i > /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
  34       echo %i > /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq
  35       echo %i > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
  36       ''' % tuple(CPU_CLOCK_RATE for _ in range(3)),
  37       # turn off the fourth core. This will hopefully produce less heat, allowing
  38       # for more consistent results.  3 cores should be enough to run Ganesh,
  39       # the graphics driver, and the OS.
  40       '''
  41       echo 0 > /sys/devices/system/cpu/cpu3/online''',
  42
  43       # lock gpu/emc clocks.
  44       '''
  45       chown root:root /sys/devices/57000000.gpu/pstate
  46       echo %s > /sys/devices/57000000.gpu/pstate''' % GPU_EMC_PROFILE_ID]))
  47
  48     return self
  49
  50   def filter_line(self, line):
  51     JUNK = ['NvRmPrivGetChipPlatform: Could not read platform information',
  52             'Expected on kernels without fuse support, using silicon']
  53     return False if line in JUNK else HardwareAndroid.filter_line(self, line)
  54
  55   def sanity_check(self):
  56     HardwareAndroid.sanity_check(self)
  57
  58     if not self._adb.is_root():
  59       return
  60
  61     # only issue one shell command in an attempt to minimize interference.
  62     result = self._adb.check('''\
  63       cat /sys/class/power_supply/bq27742-0/capacity \
  64           /sys/devices/system/cpu/online \
  65           /sys/class/thermal/thermal_zone7/temp \
  66           /sys/class/thermal/thermal_zone0/temp \
  67           /sys/class/thermal/thermal_zone1/temp \
  68           /sys/class/thermal/thermal_zone7/cdev1/cur_state \
  69           /sys/class/thermal/thermal_zone7/cdev0/cur_state
  70       for N in 0 1 2; do
  71         cat /sys/devices/system/cpu/cpu$N/cpufreq/scaling_cur_freq
  72       done
  73       cat /sys/devices/57000000.gpu/pstate | grep \*$''')
  74
  75     expectations = \
  76       [Expectation(int, min_value=30, name='battery', sleeptime=30*60),
  77        Expectation(str, exact_value='0-2', name='online cpus'),
  78        Expectation(int, max_value=40000, name='skin temperature'),
  79        Expectation(int, max_value=86000, name='cpu temperature'),
  80        Expectation(int, max_value=87000, name='gpu temperature'),
  81        Expectation(int, exact_value=0, name='cpu throttle'),
  82        Expectation(int, exact_value=0, name='gpu throttle')] + \
  83       [Expectation(int, exact_value=CPU_CLOCK_RATE,
  84                    name='cpu_%i clock rate' % i, sleeptime=30)
  85        for i in (0, 1, 2)] + \
  86       [Expectation(str, exact_value=GPU_EMC_PROFILE, name='gpu/emc profile')]
  87
  88     Expectation.check_all(expectations, result.splitlines())