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usr
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lib
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python3.6
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site-packages
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tuned
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plugins
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files >> //proc/thread-self/root/usr/lib/python3.6/site-packages/tuned/plugins/plugin_video.py
from . import base from .decorators import * import tuned.logs from tuned.utils.commands import commands import os import errno import re log = tuned.logs.get() class VideoPlugin(base.Plugin): """ `video`:: Sets various powersave levels on video cards. Currently, only the Radeon cards are supported. The powersave level can be specified by using the [option]`radeon_powersave` option. Supported values are: + -- * `default` * `auto` * `low` * `mid` * `high` * `dynpm` * `dpm-battery` * `dpm-balanced` * `dpm-perfomance` -- + For additional detail, see link:https://www.x.org/wiki/RadeonFeature/#kmspowermanagementoptions[KMS Power Management Options]. + NOTE: This plug-in is experimental and the option might change in future releases. + .To set the powersave level for the Radeon video card to high ==== ---- [video] radeon_powersave=high ---- ==== """ def _init_devices(self): self._devices_supported = True self._free_devices = set() self._assigned_devices = set() # FIXME: this is a blind shot, needs testing for device in self._hardware_inventory.get_devices("drm").match_sys_name("card*").match_property("DEVTYPE", "drm_minor"): self._free_devices.add(device.sys_name) self._cmd = commands() def _get_device_objects(self, devices): return [self._hardware_inventory.get_device("drm", x) for x in devices] @classmethod def _get_config_options(self): return { "radeon_powersave" : None, } def _instance_init(self, instance): instance._has_dynamic_tuning = False instance._has_static_tuning = True def _instance_cleanup(self, instance): pass def _radeon_powersave_files(self, device): return { "method" : "/sys/class/drm/%s/device/power_method" % device, "profile": "/sys/class/drm/%s/device/power_profile" % device, "dpm_state": "/sys/class/drm/%s/device/power_dpm_state" % device } @command_set("radeon_powersave", per_device=True) def _set_radeon_powersave(self, value, device, sim, remove): sys_files = self._radeon_powersave_files(device) va = str(re.sub(r"(\s*:\s*)|(\s+)|(\s*;\s*)|(\s*,\s*)", " ", value)).split() if not os.path.exists(sys_files["method"]): if not sim: log.warn("radeon_powersave is not supported on '%s'" % device) return None for v in va: if v in ["default", "auto", "low", "mid", "high"]: if not sim: if (self._cmd.write_to_file(sys_files["method"], "profile", \ no_error = [errno.ENOENT] if remove else False) and self._cmd.write_to_file(sys_files["profile"], v, \ no_error = [errno.ENOENT] if remove else False)): return v elif v == "dynpm": if not sim: if (self._cmd.write_to_file(sys_files["method"], "dynpm", \ no_error = [errno.ENOENT] if remove else False)): return "dynpm" # new DPM profiles, recommended to use if supported elif v in ["dpm-battery", "dpm-balanced", "dpm-performance"]: if not sim: state = v[len("dpm-"):] if (self._cmd.write_to_file(sys_files["method"], "dpm", \ no_error = [errno.ENOENT] if remove else False) and self._cmd.write_to_file(sys_files["dpm_state"], state, \ no_error = [errno.ENOENT] if remove else False)): return v else: if not sim: log.warn("Invalid option for radeon_powersave.") return None return None @command_get("radeon_powersave") def _get_radeon_powersave(self, device, ignore_missing = False): sys_files = self._radeon_powersave_files(device) method = self._cmd.read_file(sys_files["method"], no_error=ignore_missing).strip() if method == "profile": return self._cmd.read_file(sys_files["profile"]).strip() elif method == "dynpm": return method elif method == "dpm": return "dpm-" + self._cmd.read_file(sys_files["dpm_state"]).strip() else: return None
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