76 lines
2.4 KiB
Python
Executable File
76 lines
2.4 KiB
Python
Executable File
#!/usr/bin/env python3
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# SPDX-License-Identifier: GPL-3.0-only
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import os
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import subprocess
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import sys
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def power_limits():
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pl1 = int(subprocess.check_output("cat /sys/class/powercap/intel-rapl:0/constraint_0_power_limit_uw", shell=True))
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pl2 = int(subprocess.check_output("cat /sys/class/powercap/intel-rapl:0/constraint_1_power_limit_uw", shell=True))
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# Convert from microwatts to watts
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return pl1 // 1_000_000, pl2 // 1_000_000
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def thermal():
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subprocess.check_call("modprobe msr", shell=True)
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return int(subprocess.check_output("rdmsr --bitfield 31:24 --decimal 0x1A2", shell=True))
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def pch_pm_slp():
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gen_pmcon_a = int(subprocess.check_output("devmem2 0xfe001020", shell=True).split()[-1], 16)
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pm_cfg = int(subprocess.check_output("devmem2 0xfe001818", shell=True).split()[-1], 16)
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s3min = (gen_pmcon_a >> 10) & 0b11
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s4min = (gen_pmcon_a >> 4) & 0b11
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susmin = (pm_cfg >> 18) & 0b11
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amin = (pm_cfg >> 16) & 0b11
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return s3min, s4min, susmin, amin
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def lpc():
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dump = subprocess.check_output("lspci -s 1f.0 -xxx", shell=True).decode("utf-8")
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extract = []
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for l in dump.split('\n'):
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if l.startswith("80") or l.startswith("90"):
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extract += l.split()[1:]
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# Values are displayed in little endian
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gen1 = int("0x" + "".join(extract[7:3:-1]), 16)
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gen2 = int("0x" + "".join(extract[11:7:-1]), 16)
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gen3 = int("0x" + "".join(extract[15:11:-1]), 16)
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gen4 = int("0x" + "".join(extract[19:15:-1]), 16)
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return gen1, gen2, gen3, gen4
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if __name__ == '__main__':
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if os.geteuid() != 0:
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sys.exit("Must run as root")
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pl1, pl2 = power_limits()
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print("""\t# Power limits
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\tregister "power_limits_config" = "{{
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\t\t.tdp_pl1_override = {},
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\t\t.tdp_pl2_override = {},
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\t}}"
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""".format(pl1, pl2))
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s3min, s4min, susmin, amin = pch_pm_slp()
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print("""\t# Power
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\tregister "PchPmSlpS3MinAssert" = "{}"
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\tregister "PchPmSlpS4MinAssert" = "{}"
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\tregister "PchPmSlpSusMinAssert" = "{}"
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\tregister "PchPmSlpAMinAssert" = "{}"
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""".format(s3min, s4min, susmin, amin))
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thermal = thermal()
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print("""\t# Thermal
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\tregister "tcc_offset" = "{}"
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""".format(thermal))
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gen1, gen2, gen3, gen4 = lpc()
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print("""\t\tdevice pci 1f.0 on\t# LPC Interface
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\t\t\tregister "gen1_dec" = "{:#010x}"
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\t\t\tregister "gen2_dec" = "{:#010x}"
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\t\t\tregister "gen3_dec" = "{:#010x}"
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\t\t\tregister "gen4_dec" = "{:#010x}"
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\t\tend""".format(gen1, gen2, gen3, gen4))
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