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frequency scaling on D525MW not working properly

From: Sven Gaerner <sgaerner@xxxxxxx>
Date: Sun, 22 Jul 2012 13:46:41 +0200

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I bought an Atom based Intel D525MW board. DragonFly release is running
on that system. But I have a few minor issues.

The CPU is getting somewhat warm (about 55 degrees celsius). This is not
a real problem, because it is not too hot. But I think this occurs
because the frequency scaling does not work. Running "sysctl hw.acpi"
prints the following lines (I cut the output to one logical CPU, but for
the other three the output is identical):

  hw.acpi.cpu.cx_lowest: C1
  hw.acpi.cpu0.cx_supported: C1/3
  hw.acpi.cpu0.cx_lowest: C1
  hw.acpi.cpu0.cx_usage: 100.00% last 5000us

Also there is no sysctl hw.acpi.cpu.px_dom0.select available, so I guess
powerd is also running not properly and the CPU frequency is not scaled
in any way.

After looking into the dmesg output, I guess some driver does not
recognize parts of the hardware/ACPI stuff correctly (see below; the
text is repeated for the other 3 logical CPUs).

  cpu0: <ACPI CPU> on acpi0
  cpu_cst0: <ACPI CPU C-State> on cpu0
  cpu_pst0: Can't get _PSS package - AE_NOT_FOUND

The dmesg is attached.

It would be great if there is someone who can help me to get this fixed.
If more details are necessary, just let me know.


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Copyright (c) 2003-2012 The DragonFly Project.
Copyright (c) 1992-2003 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
	The Regents of the University of California. All rights reserved.
DragonFly v3.0.2.70.gd51ef-RELEASE #2: Thu Jul 19 22:17:26 CEST 2012
TSC clock: 1800110025 Hz, i8254 clock: 1193212 Hz
CPU: Intel(R) Atom(TM) CPU D525   @ 1.80GHz (1800.08-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0x106ca  Stepping = 10
  AMD Features=0x20100000<NX,LM>
  AMD Features2=0x1<LAHF>
real memory  = 4277054464 (4078 MB)
avail memory = 3344994304 (3190 MB)
lapic: divisor index 0, frequency 100003876 Hz
Initialize MI interrupts
module_register: module dsched_fq already exists!
Module dsched_fq failed to register: 17
module_register_init: MOD_LOAD (powernow, c0ddadba, 0) error 2
FQ scheduler policy version 1.1 loaded
FQ scheduler policy unloaded
module_register_init: MOD_LOAD (dsched_fq, c0dde030, 0) error 17
kbd0 at kbdmux0
disk scheduler: set policy of md0 to noop
md0: Malloc disk
ACPI: RSDP 0xf2060 00024 (v2 INTEL )
ACPI: XSDT 0xceffe120 0004C (v1 INTEL  D525MW   00000053      01000013)
ACPI: FACP 0xceffd000 000F4 (v3 INTEL  D525MW   00000053 MSFT 0100000D)
ACPI: DSDT 0xceff9000 03796 (v1 INTEL  D525MW   00000053 MSFT 0100000D)
ACPI: FACS 0xcef87000 00040
ACPI: APIC 0xceff8000 00084 (v2 INTEL  D525MW   00000053 MSFT 0100000D)
ACPI: MCFG 0xceff7000 0003C (v1 INTEL  D525MW   00000053 MSFT 0100000D)
ACPI: HPET 0xceff6000 00038 (v1 INTEL  D525MW   00000053 MSFT 0100000D)
ACPI: SSDT 0xceff2000 0377C (v1 INTEL  D525MW   00000053 MSFT 0100000D)
npx0: <math processor> on motherboard
npx0: INT 16 interface
Using XMM optimized bcopy/copyin/copyout
cryptosoft0: <software crypto> on motherboard
acpi0: <INTEL D525MW> on motherboard
ACPI FADT: SCI testing interrupt mode ...
sched_ithd: stray interrupt 9 on cpu0
ACPI FADT: SCI select level/high
acpi0: Power Button (fixed)
Warning: ACPI is disabling APM's device.  You can't run both
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x408-0x40b on acpi0
acpi_hpet0: <High Precision Event Timer> iomem 0xfed00000-0xfed003ff on acpi0
acpi_hpet0: frequency 14318180
acpi_button0: <Sleep Button> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
vgapci0: <VGA-compatible display> port 0x20c0-0x20c7 mem 0xf0100000-0xf01fffff,0xe0000000-0xefffffff,0xf0200000-0xf027ffff irq 16 at device 2.0 on pci0
agp0: <Intel IGD SVGA controller> on vgapci0
agp0: detected 8188k stolen memory
agp0: aperture size is 256M
pci0: <multimedia, HDA> (vendor 0x8086, dev 0x27d8) at device 27.0 irq 22
pcib1: <ACPI PCI-PCI bridge> at device 28.0 on pci0
pci1: <ACPI PCI bus> on pcib1
re0: <RealTek 8111/8168 PCIe Gigabit Ethernet> port 0x1000-0x10ff mem 0xf0000000-0xf0003fff,0xf0004000-0xf0004fff irq 16 at device 0.0 on pci1
re0: Hardware rev. 0x2c000000; MAC ver. 0x2f; PCI-E 125MHz
miibus0: <MII bus> on re0
rgephy0: <8211B/RTL8169S/8110S media interface> on miibus0
rgephy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 1000baseT-FDX, auto
re0: MAC address: e8:40:f2:3d:9b:10
pcib2: <ACPI PCI-PCI bridge> at device 28.1 on pci0
pci2: <ACPI PCI bus> on pcib2
pcib3: <ACPI PCI-PCI bridge> at device 28.2 on pci0
pci3: <ACPI PCI bus> on pcib3
pcib4: <ACPI PCI-PCI bridge> at device 28.3 on pci0
pci4: <ACPI PCI bus> on pcib4
uhci0: <Intel 82801G (ICH7) USB controller> port 0x2080-0x209f irq 23 at device 29.0 on pci0
usb0: <Intel 82801G (ICH7) USB controller> on uhci0
usb0: USB revision 1.0
uhub0: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb0
uhub0: 2 ports with 2 removable, self powered
uhci1: <Intel 82801G (ICH7) USB controller> port 0x2060-0x207f irq 19 at device 29.1 on pci0
usb1: <Intel 82801G (ICH7) USB controller> on uhci1
usb1: USB revision 1.0
uhub1: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb1
uhub1: 2 ports with 2 removable, self powered
uhci2: <Intel 82801G (ICH7) USB controller> port 0x2040-0x205f irq 18 at device 29.2 on pci0
usb2: <Intel 82801G (ICH7) USB controller> on uhci2
usb2: USB revision 1.0
uhub2: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb2
uhub2: 2 ports with 2 removable, self powered
uhci3: <Intel 82801G (ICH7) USB controller> port 0x2020-0x203f irq 16 at device 29.3 on pci0
usb3: <Intel 82801G (ICH7) USB controller> on uhci3
usb3: USB revision 1.0
uhub3: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb3
uhub3: 2 ports with 2 removable, self powered
ehci0: <Intel 82801GB/R USB 2.0 controller> mem 0xf0284400-0xf02847ff irq 23 at device 29.7 on pci0
usb4: waiting for BIOS to give up control
usb4: EHCI version 1.0
usb4: companion controllers, 2 ports each: usb0 usb1 usb2 usb3
usb4: <Intel 82801GB/R USB 2.0 controller> on ehci0
usb4: USB revision 2.0
uhub4: <Intel EHCI root hub, class 9/0, rev 2.00/1.00, addr 1> on usb4
uhub4: 8 ports with 8 removable, self powered
pcib5: <ACPI PCI-PCI bridge> at device 30.0 on pci0
pci5: <ACPI PCI bus> on pcib5
isab0: <PCI-ISA bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
ahci0: <AHCI-PCI-SATA> port 0x20a0-0x20af,0x20c8-0x20cb,0x20b0-0x20b7,0x20cc-0x20cf,0x20b8-0x20bf mem 0xf0284000-0xf02843ff irq 18 at device 31.2 on pci0
ahci0: Intel hocus pocus
ahci0: AHCI 1.1 capabilities 0xcf20ff03<S64A,NCQ,SSS,SALP,SAL,SCLO,PMD,SSC,PSC>, 4 ports, 32 tags/port, gen 2 (3Gbps)
ahci0.0: Caps 4<POD>
ahci0.1: Caps 4<POD>
ahci0.0: Found DISK "WDC WD3200BUCT-63TWBY0 01.01A01" serial="WD-WXG1EB1DVZHL"
ahci0.0: tags=32/32 satacap=1f06 satafea=004c NCQ=YES capacity=305245.33MB
ahci0.0: f85=7469 f86=bc49 f87=6723 WC=enabled RA=enabled SEC=freezing
ahci0.1: No device detected
ichsmb0: <Intel 82801GB (ICH7) SMBus controller> port 0x2000-0x201f irq 19 at device 31.3 on pci0
smbus0: <System Management Bus> on ichsmb0
sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 on acpi0
sio0: type 16550A
sio1: <16550A-compatible COM port> port 0x2f8-0x2ff irq 3 on acpi0
sio1: type 16550A
cpu0: <ACPI CPU> on acpi0
cpu_cst0: <ACPI CPU C-State> on cpu0
cpu_pst0: Can't get _PSS package - AE_NOT_FOUND
cpu1: <ACPI CPU> on acpi0
cpu_cst1: <ACPI CPU C-State> on cpu1
cpu_pst1: Can't get _PSS package - AE_NOT_FOUND
cpu2: <ACPI CPU> on acpi0
cpu_cst2: <ACPI CPU C-State> on cpu2
cpu_pst2: Can't get _PSS package - AE_NOT_FOUND
cpu3: <ACPI CPU> on acpi0
cpu_cst3: <ACPI CPU C-State> on cpu3
cpu_pst3: Can't get _PSS package - AE_NOT_FOUND
pmtimer0 on isa0
fdc0: ready for input in output
fdc0: cmd 3 failed at out byte 1 of 3
atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
lm0: <Winbond W83627DHG Hardware Monitor> at port 0x290-0x297 on isa0
wbsio0: <Winbond LPC Super I/O W83627DHG-P rev 0x73> at port 0x2e-0x2f on isa0
wbsio0: hardware monitor iobase is 0x290
wbsio0: lm0 is already attached at 0x290
ppc0: parallel port not found.
CAM: Configuring 2 busses
CAM: finished configuring all busses
disk scheduler: set policy of da0 to noop
da0 at ahci0 bus 0 target 0 lun 0
da0: <SATA WDC WD3200BUCT-6 01.0> Fixed Direct Access SCSI-4 device 
da0: Serial Number WD-WXG1EB1DVZHL
da0: 300.000MB/s transfers
da0: 305245MB (625142448 512 byte sectors: 255H 63S/T 38913C)
Mounting root from hammer:serno/WD-WXG1EB1DVZHL.s1d
tryroot serno/WD-WXG1EB1DVZHL.s1d
HAMMER(ROOT) recovery check seqno=07138510
HAMMER(ROOT) recovery range 300000000a9d7560-300000000a9d7560
HAMMER(ROOT) recovery nexto 300000000a9d7560 endseqno=07138511
HAMMER(ROOT) mounted clean, no recovery needed
DMA space used: 7632k, remaining available: 16384k
Mounting devfs


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