| # Copyright (c) 2012 The Chromium OS Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| import commands, glob, logging, os, re, time |
| from autotest_lib.client.bin import test, utils |
| from autotest_lib.client.common_lib import error |
| from autotest_lib.client.cros import power_rapl |
| from autotest_lib.client.cros import power_status |
| from autotest_lib.client.cros import power_utils |
| from autotest_lib.client.cros import cros_logging |
| |
| |
| # Specify registers to check. The format needs to be: |
| # register offset : ('bits', 'expression') |
| DMI_BAR_CHECKS = { |
| 'Atom': { |
| '0x88': [('1:0', 3)], |
| '0x200': [('27:26', 0)], |
| '0x210': [('2:0', 1), ('15:8', 1)], |
| '0xc28': [('5:1', 7)], |
| '0xc2e': [('5', 1)], |
| '0xc30': [('11', 0), ('10:8', 4)], |
| '0xc34': [('9:4', 7), ('0', 1)], |
| }, |
| 'Non-Atom': { |
| # http://www.intel.com/content/dam/doc/datasheet/2nd-gen-core-family-mobile-vol-2-datasheet.pdf |
| # PCIE DMI Link Control Register |
| # -- [1:0] : ASPM State 0=Disable, 1=L0s, 2=reserved, 3=L0s&L1 |
| '0x88': [('1:0', 3)], |
| }, |
| } |
| |
| # http://www.intel.com/content/dam/www/public/us/en/documents/datasheets/2nd-gen-core-family-mobile-vol-1-datasheet.pdf |
| # PM_PDWN_Config_ |
| # -- [12] : Global power-down (GLPDN). 1 == global, 0 == per rank |
| # -- [11:8] : Power-down mode. 0->0x7. Higher is lower power |
| # -- [7:0] : Power-down idle timer. Lower is better. Minimum |
| # recommended is 0xf |
| MCH_PM_PDWN_CONFIG = [('12', 0), ('11:8', 0x6, '>='), ('7:0', 0x40, '<='), |
| ('7:0', 0xf, '>=')] |
| MCH_BAR_CHECKS = { |
| 'Atom': {}, |
| 'Non-Atom': { |
| # mmc0 |
| '0x40b0': MCH_PM_PDWN_CONFIG, |
| # mmc1 |
| '0x44b0': MCH_PM_PDWN_CONFIG, |
| # single mmc |
| '0x4cb0': MCH_PM_PDWN_CONFIG, |
| }, |
| } |
| |
| MSR_CHECKS = { |
| 'Atom': { |
| '0xe2': [('7', 0), ('2:0', 4)], |
| '0x198': [('28:24', 6)], |
| '0x1a0': [('33:32', 3), ('26:25', 3), ('16', 1)], |
| }, |
| 'Non-Atom': { |
| # IA32_ENERGY_PERF_BIAS[3:0] -- 0 == hi-perf, 6 balanced, 15 powersave |
| '0x1b0': [('3:0', 6)], |
| }, |
| } |
| |
| # Give an ASPM exception for these PCI devices. ID is taken from lspci -n. |
| ASPM_EXCEPTED_DEVICES = { |
| 'Atom': [ |
| # Intel 82801G HDA Controller |
| '8086:27d8' |
| ], |
| 'Non-Atom': [ |
| # Intel HDA Controller |
| '8086:1c20', |
| '8086:1e20' |
| ], |
| } |
| |
| GFX_CHECKS = { |
| 'Non-Atom': {'i915_enable_rc6': -1, 'i915_enable_fbc': 1, 'powersave': 1, |
| 'semaphores': 1, 'lvds_downclock': 1} |
| } |
| |
| # max & min are in Watts. Device should presumably be idle. |
| RAPL_CHECKS = { |
| 'Non-Atom': {'pkg': {'max': 5.0, 'min': 1.0}, |
| 'pp0': {'max': 1.2, 'min': 0.001}, |
| 'pp1': {'max': 1.0, 'min': 0.000}} |
| } |
| |
| SUBTESTS = ['dmi', 'mch', 'msr', 'pcie_aspm', 'wifi', 'usb', 'storage', |
| 'audio', 'filesystem', 'graphics', 'rapl'] |
| |
| |
| class power_x86Settings(test.test): |
| """Class for power_x86Settings. See 'control' for details.""" |
| version = 1 |
| |
| |
| def initialize(self): |
| self._usbpower = power_utils.USBPower() |
| |
| |
| def run_once(self): |
| cpu_arch = power_utils.get_x86_cpu_arch() |
| if not cpu_arch: |
| raise error.TestNAError('Unsupported CPU') |
| |
| self._cpu_type = 'Atom' |
| if cpu_arch is not 'Atom': |
| self._cpu_type = 'Non-Atom' |
| |
| self._registers = power_utils.Registers() |
| |
| status = power_status.get_status() |
| if status.linepower[0].online: |
| logging.info('AC Power is online') |
| self._on_ac = True |
| else: |
| logging.info('AC Power is offline') |
| self._on_ac = False |
| |
| failures = '' |
| |
| for testname in SUBTESTS: |
| logging.info("SUBTEST = %s", testname) |
| func = getattr(self, "_verify_%s_power_settings" % testname) |
| fail_count = func() |
| if fail_count: |
| failures += '%s_failures(%d) ' % (testname, fail_count) |
| |
| if failures: |
| raise error.TestFail(failures) |
| |
| |
| def _verify_wifi_power_settings(self): |
| if self._on_ac: |
| expected_state = 'off' |
| else: |
| expected_state = 'on' |
| |
| iwconfig_out = utils.system_output('iwconfig 2>&1', retain_output=True) |
| match = re.search(r'Power Management:(.*)', iwconfig_out) |
| if match and match.group(1) == expected_state: |
| return 0 |
| |
| logging.info(iwconfig_out) |
| return 1 |
| |
| |
| def _verify_storage_power_settings(self): |
| if self._on_ac: |
| return 0 |
| |
| expected_state = 'min_power' |
| |
| dirs_path = '/sys/class/scsi_host/host*' |
| dirs = glob.glob(dirs_path) |
| if not dirs: |
| logging.info('scsi_host paths not found') |
| return 1 |
| |
| for dirpath in dirs: |
| link_policy_file = os.path.join(dirpath, |
| 'link_power_management_policy') |
| if not os.path.exists(link_policy_file): |
| logging.debug('path does not exist: %s', link_policy_file) |
| continue |
| |
| out = utils.read_one_line(link_policy_file) |
| logging.debug('storage: path set to %s for %s', |
| out, link_policy_file) |
| if out == expected_state: |
| return 0 |
| |
| return 1 |
| |
| |
| def _verify_usb_power_settings(self): |
| errors = 0 |
| self._usbpower.query_devices() |
| for dev in self._usbpower.devices: |
| # whitelist MUST autosuspend |
| autosuspend = dev.autosuspend() |
| logging.debug("USB %s:%s whitelisted:%s autosuspend:%s", |
| dev.vid, dev.pid, dev.whitelisted, autosuspend) |
| if dev.whitelisted and not autosuspend: |
| logging.error("Whitelisted USB %s:%s " |
| "has autosuspend disabled", dev.vid, dev.pid) |
| errors += 1 |
| elif not dev.whitelisted: |
| # TODO(crbug.com/242228): Deprecate warnings once we can |
| # definitively identify preferred USB autosuspend settings |
| logging.warning("Non-Whitelisted USB %s:%s present. " |
| "Should it be whitelisted?", dev.vid, dev.pid) |
| |
| return errors |
| |
| |
| def _verify_audio_power_settings(self): |
| path = '/sys/module/snd_hda_intel/parameters/power_save' |
| out = utils.read_one_line(path) |
| logging.debug('Audio: %s = %s', path, out) |
| power_save_timeout = int(out) |
| |
| # Make sure that power_save timeout parameter is zero if on AC. |
| if self._on_ac: |
| if power_save_timeout == 0: |
| return 0 |
| else: |
| logging.debug('Audio: On AC power but power_save = %d', \ |
| power_save_timeout) |
| return 1 |
| |
| # Make sure that power_save timeout parameter is non-zero if on battery. |
| elif power_save_timeout > 0: |
| return 0 |
| |
| logging.debug('Audio: On battery power but power_save = %d', \ |
| power_save_timeout) |
| return 1 |
| |
| |
| def _verify_filesystem_power_settings(self): |
| mount_output = commands.getoutput('mount | fgrep commit=').split('\n') |
| if len(mount_output) == 0: |
| logging.debug('No file system entries with commit intervals found.') |
| return 1 |
| |
| errors = 0 |
| # Parse for 'commit' param |
| for line in mount_output: |
| try: |
| commit = int(re.search(r'(commit=)([0-9]*)', line).group(2)) |
| except: |
| errors += 1 |
| logging.error('Error(%d), reading commit value from \'%s\'', |
| errors, line) |
| continue |
| |
| # Check for the correct commit interval. |
| if commit != 600: |
| errors += 1 |
| logging.error('Error(%d), incorrect commit interval %d', errors, |
| commit) |
| |
| return errors |
| |
| def _verify_lvds_downclock_mode_added(self): |
| """Checks the kernel log for a message that an LVDS downclock mode has |
| been added. |
| |
| This test is specific to alex & lumpy, since they use the i915 driver |
| (which has downclocking ability) and use the same LCD. This LCD is |
| special, in that it supports a downclocked refresh rate, but doesn't |
| advertise it in the EDID. |
| |
| To counteract this, I added a quirk in drm to add a downclocked mode to |
| the panel. Unfortunately, upstream doesn't want this patch, and we have |
| to carry it locally. The quirk patch was dropped inadvertently from |
| chromeos-3.4, so this test ensures we don't regress again. |
| |
| I plan on writing an upstream friendly patch sometime in the near |
| future, at which point I'll revert my drm hack and this test. |
| |
| Returns: |
| 0 if no errors, otherwise the number of errors that occurred. |
| """ |
| # Skip all boards except lumpy and alex |
| cmd = 'cat /etc/lsb-release | grep CHROMEOS_RELEASE_BOARD' |
| output = utils.system_output(cmd) |
| if 'lumpy' not in output and 'alex' not in output: |
| return 0 |
| |
| # Get the downclock message from the logs |
| reader = cros_logging.LogReader() |
| reader.set_start_by_reboot(-1) |
| if not reader.can_find('Adding LVDS downclock mode'): |
| logging.error('Error, LVDS downclock quirk not applied!') |
| return 1 |
| |
| return 0 |
| |
| def _verify_graphics_power_settings(self): |
| """Verify that power-saving for graphics are configured properly. |
| |
| Returns: |
| 0 if no errors, otherwise the number of errors that occurred. |
| """ |
| errors = 0 |
| |
| if self._cpu_type in GFX_CHECKS: |
| checks = GFX_CHECKS[self._cpu_type] |
| for param_name in checks: |
| param_path = '/sys/module/i915/parameters/%s' % param_name |
| if not os.path.exists(param_path): |
| errors += 1 |
| logging.error('Error(%d), %s not found', errors, param_path) |
| else: |
| out = utils.read_one_line(param_path) |
| logging.debug('Graphics: %s = %s', param_path, out) |
| value = int(out) |
| if value != checks[param_name]: |
| errors += 1 |
| logging.error('Error(%d), %s = %d but should be %d', |
| errors, param_path, value, |
| checks[param_name]) |
| errors += self._verify_lvds_downclock_mode_added() |
| |
| # On systems which support RC6 (non atom), check that we get into rc6; |
| # idle before doing so, and retry every second for 20 seconds. |
| if self._cpu_type == 'Non-Atom': |
| tries = 0 |
| found = False |
| while found == False and tries < 20: |
| time.sleep(1) |
| param_path = "/sys/kernel/debug/dri/0/i915_drpc_info" |
| if not os.path.exists(param_path): |
| logging.error('Error(%d), %s not found', errors, param_path) |
| break |
| drpc_info_file = open (param_path, "r") |
| for line in drpc_info_file: |
| match = re.search(r'Current RC state: (.*)', line) |
| if match: |
| found = match.group(1) != 'on' |
| break |
| |
| tries += 1 |
| drpc_info_file.close() |
| |
| if not found: |
| errors += 1 |
| logging.error('Error(%d), did not see the GPU in RC6', errors) |
| |
| return errors |
| |
| |
| def _verify_pcie_aspm_power_settings(self): |
| errors = 0 |
| out = utils.system_output('lspci -n') |
| for line in out.splitlines(): |
| slot, _, pci_id = line.split()[0:3] |
| slot_out = utils.system_output('lspci -s %s -vv' % slot, |
| retain_output=True) |
| match = re.search(r'LnkCtl:(.*);', slot_out) |
| if match: |
| if pci_id in ASPM_EXCEPTED_DEVICES[self._cpu_type]: |
| continue |
| |
| split = match.group(1).split() |
| if split[1] == 'Disabled' or \ |
| (split[2] == 'Enabled' and split[1] != 'L1'): |
| errors += 1 |
| logging.info(slot_out) |
| logging.error('Error(%d), %s ASPM off or no L1 support', |
| errors, slot) |
| else: |
| logging.info('PCIe: LnkCtl not found for %s', line) |
| |
| return errors |
| |
| |
| def _verify_dmi_power_settings(self): |
| return self._registers.verify_dmi(DMI_BAR_CHECKS[self._cpu_type]) |
| |
| def _verify_mch_power_settings(self): |
| return self._registers.verify_mch(MCH_BAR_CHECKS[self._cpu_type]) |
| |
| def _verify_msr_power_settings(self): |
| return self._registers.verify_msr(MSR_CHECKS[self._cpu_type]) |
| |
| def _verify_rapl_power_settings(self): |
| errors = 0 |
| if self._cpu_type not in RAPL_CHECKS: |
| return errors |
| |
| test_domains = RAPL_CHECKS[self._cpu_type].keys() |
| rapls = power_rapl.create_rapl(domains=test_domains) |
| |
| time.sleep(2) |
| for rapl in rapls: |
| power = rapl.refresh() |
| domain = rapl.domain |
| test_params = RAPL_CHECKS[self._cpu_type][domain] |
| logging.info('RAPL %s power during 2secs was: %.3fW', |
| domain, power) |
| if power > test_params['max']: |
| errors += 1 |
| logging.error('Error(%d), RAPL %s power > %.3fW', |
| errors, domain, test_params['max']) |
| if power < test_params['min']: |
| errors += 1 |
| logging.error('Error(%d), RAPL %s power < %.3fW', |
| errors, domain, test_params['min']) |
| return errors |
