110 lines
3.4 KiB
Python
110 lines
3.4 KiB
Python
import base
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from decorators import *
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import tuned.logs
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from tuned.utils.commands import commands
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import os
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log = tuned.logs.get()
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class VideoPlugin(base.Plugin):
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"""
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Plugin for tuning powersave options for some graphic cards.
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"""
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def _init_devices(self):
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self._devices_supported = True
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self._free_devices = set()
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self._assigned_devices = set()
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# FIXME: this is a blind shot, needs testing
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for device in self._hardware_inventory.get_devices("drm").match_sys_name("card*").match_property("DEVTYPE", "drm_minor"):
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self._free_devices.add(device.sys_name)
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self._cmd = commands()
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def _get_device_objects(self, devices):
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return map(lambda x: self._hardware_inventory.get_device("drm", x), devices)
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@classmethod
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def _get_config_options(self):
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return {
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"radeon_powersave" : None,
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"radeon_dpm_state" : None,
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}
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def _instance_init(self, instance):
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instance._has_dynamic_tuning = False
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instance._has_static_tuning = True
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def _instance_cleanup(self, instance):
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pass
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def _radeon_powersave_files(self, device):
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return {
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"method" : "/sys/class/drm/%s/device/power_method" % device,
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"profile": "/sys/class/drm/%s/device/power_profile" % device,
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}
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def _radeon_dpm_state_file(self, device):
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return "/sys/class/drm/%s/device/power_dpm_state" % device
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@command_set("radeon_powersave", per_device=True)
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def _set_radeon_powersave(self, value, device, sim):
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sys_files = self._radeon_powersave_files(device)
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if not os.path.exists(sys_files["method"]):
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if not sim:
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log.warn("radeon_powersave is not supported on '%s'" % device)
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return None
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if value in ["default", "auto", "low", "mid", "high"]:
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if not sim:
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self._cmd.write_to_file(sys_files["method"], "profile")
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self._cmd.write_to_file(sys_files["profile"], value)
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return value
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elif value == "dynpm":
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if not sim:
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self._cmd.write_to_file(sys_files["method"], "dynpm")
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return "dynpm"
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elif value == "dpm":
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if not sim and self._get_radeon_powersave(device) != "dpm":
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log.error("Cannot set dpm power method through the video plugin." \
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+ "Use the bootloader plugin with the 'cmdline = radeon.dpm=1' option")
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return None
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return "dpm"
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else:
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if not sim:
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log.warn("Invalid option for radeon_powersave.")
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return None
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@command_get("radeon_powersave")
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def _get_radeon_powersave(self, device, ignore_missing=False):
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sys_files = self._radeon_powersave_files(device)
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method = self._cmd.read_file(sys_files["method"], no_error=ignore_missing).strip()
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if method == "profile":
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return self._cmd.read_file(sys_files["profile"]).strip()
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elif method == "dynpm" or method == "dpm":
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return method
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else:
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return None
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@command_set("radeon_dpm_state", per_device=True, priority=10)
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def _set_radeon_dpm_state(self, value, device, sim):
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if self._get_radeon_powersave(device) != "dpm":
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log.error("dpm power method is not enabled.")
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return None
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if not value in ["battery", "balanced", "performance"]:
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if not sim:
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log.warn("Invalid option for radeon_dpm_state.")
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return None
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path = self._radeon_dpm_state_file(device)
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self._cmd.write_to_file(path, value)
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return value
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@command_get("radeon_dpm_state")
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def _get_radeon_dpm_state(self, device):
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if self._get_radeon_powersave(device) != "dpm":
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log.error("dpm power method is not enabled.")
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return None
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path = self._radeon_dpm_state_file(device)
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return self._cmd.read_file(path).strip()
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