Quote:
Originally Posted by s0be  Updated to include functional C1/C2... the ICH6/ICH6-R chipset doesn't support anything beyond C2, so all that is left is C1E (which might 'just work' with C1, still researching). So here's what I've accomplished so far(in order) * Cleaned up DSDT * Added P-States & enabled EIST * Added PSD entries to get HT CPUs to switch together * Added C-States C1 & C2 My system is now MUUUUUCH cooler.
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I now have C1E working. This can be noted from the cpuidle line from dmesg:
Code:
using mwait in idle threads.
a kernel update enabled it, so it looks like it not working was a bug. I also enabled C3 and C4, all working, disabled HT (hyperthreading was causing more harm than good, in my case). I originally left out C3 and C4 because they were listed as 'mobile only' which I thought meant ICH6-M, but it turns out, they work fine on any supported CPU, just that they should 'probably' only be enabled on a mobile CPU. here's some more interesting output:
Code:
boatanchor ~ $ for f in /sys/devices/system/cpu/cpu0/cpuidle/*/*; do echo $f: `cat $f`; done;
/sys/devices/system/cpu/cpu0/cpuidle/state0/desc: CPUIDLE CORE POLL IDLE
/sys/devices/system/cpu/cpu0/cpuidle/state0/latency: 0
/sys/devices/system/cpu/cpu0/cpuidle/state0/name: C0
/sys/devices/system/cpu/cpu0/cpuidle/state0/power: 4294967295
/sys/devices/system/cpu/cpu0/cpuidle/state0/time: 0
/sys/devices/system/cpu/cpu0/cpuidle/state0/usage: 0
/sys/devices/system/cpu/cpu0/cpuidle/state1/desc: ACPI HLT
/sys/devices/system/cpu/cpu0/cpuidle/state1/latency: 1
/sys/devices/system/cpu/cpu0/cpuidle/state1/name: C1
/sys/devices/system/cpu/cpu0/cpuidle/state1/power: 1000
/sys/devices/system/cpu/cpu0/cpuidle/state1/time: 2703
/sys/devices/system/cpu/cpu0/cpuidle/state1/usage: 3
/sys/devices/system/cpu/cpu0/cpuidle/state2/desc: ACPI IOPORT 0x1014
/sys/devices/system/cpu/cpu0/cpuidle/state2/latency: 1
/sys/devices/system/cpu/cpu0/cpuidle/state2/name: C2
/sys/devices/system/cpu/cpu0/cpuidle/state2/power: 500
/sys/devices/system/cpu/cpu0/cpuidle/state2/time: 8847685140
/sys/devices/system/cpu/cpu0/cpuidle/state2/usage: 15304006
/sys/devices/system/cpu/cpu0/cpuidle/state3/desc: ACPI IOPORT 0x1015
/sys/devices/system/cpu/cpu0/cpuidle/state3/latency: 85
/sys/devices/system/cpu/cpu0/cpuidle/state3/name: C3
/sys/devices/system/cpu/cpu0/cpuidle/state3/power: 250
/sys/devices/system/cpu/cpu0/cpuidle/state3/time: 42073229
/sys/devices/system/cpu/cpu0/cpuidle/state3/usage: 4674565
/sys/devices/system/cpu/cpu0/cpuidle/state4/desc: ACPI IOPORT 0x1016
/sys/devices/system/cpu/cpu0/cpuidle/state4/latency: 150
/sys/devices/system/cpu/cpu0/cpuidle/state4/name: C4
/sys/devices/system/cpu/cpu0/cpuidle/state4/power: 100
/sys/devices/system/cpu/cpu0/cpuidle/state4/time: 625543763
/sys/devices/system/cpu/cpu0/cpuidle/state4/usage: 69504596
Code:
boatanchor ~ $ cat /proc/acpi/processor/CPU0/power
active state: C0
max_cstate: C8
maximum allowed latency: 2000000000 usec
states:
C1: type[C1] promotion[--] demotion[--] latency[001] usage[00000003] duration[00000000000000000000]
C2: type[C2] promotion[--] demotion[--] latency[001] usage[15365785] duration[00000000031792551914]
C3: type[C3] promotion[--] demotion[--] latency[085] usage[04688892] duration[00000000000150050985]
C4: type[C3] promotion[--] demotion[--] latency[150] usage[69723517] duration[00000000002231159790]
Code:
@boatanchor ~ $ for f in /proc/acpi/thermal_zone/THM0/*; do echo $f\\: `cat $f`; done;
/proc/acpi/thermal_zone/THM0/cooling_mode: 0 - Active; 1 - Passive
/proc/acpi/thermal_zone/THM0/polling_frequency: <polling disabled>
/proc/acpi/thermal_zone/THM0/state: state: ok
/proc/acpi/thermal_zone/THM0/temperature: temperature: 48 C
/proc/acpi/thermal_zone/THM0/trip_points: critical (S5): 85 C passive (forced):<not set>
The only missing feature is TM2... which I have no clues on howto go forward on.
Thanks for sharing.
Glad that my programming days are practically over 
