SEO

Hi,

I have been working on getting an AMD laptop to work with powernow and
setperf in GENERIC and am running into some trouble. From what I can
tell I believe I have a bad BIOS. The powernow code
(arch/i386/i386/powernow-k7.c) doesn't pass the check on lines 262 and
263 in the k7pnow_states function:

if (cpusig == pst->signature && fid == pst->fid
&& vid == pst->vid)

The result is that my cpu is always running at full speed with the fans
on full blast all the time.

The following is a dump of the CPUID contents of my CPU:

eax in eax ebx ecx edx
00000000 00000001 68747541 444d4163 69746e65
00000001 000006a0 00000000 00000000 0383f9ff
80000000 80000008 68747541 444d4163 69746e65
80000001 000007a0 00000000 00000000 c1cbf9ff
80000002 69626f6d 4120656c 4120444d 6f6c6874
80000003 6d74286e 50582029 30303832 0000002b
80000004 00000000 00000000 00000000 00000000
80000005 0408ff08 ff20ff10 40020140 40020140
80000006 00000000 41004100 02008140 00000000
80000007 00000000 00000000 00000000 00000007
80000008 00002022 00000000 00000000 00000000

The first time k7pnow_states is called, cpusig is 0x06A0, and fid is 26,
and vid is 9. The second time it is called cpusig is 0x07A0 (the
extended CPU ID signature) and fid is 26, and vid is 9. Every PST has
the signature 0x0780 or 0x0781.

I have also dumped the contents of my BIOS and have decoded the
AMDK7PNOW! tables if it is helpful. Here they are:

Signature OK: AMDK7PNOW!
Version 0x12
Flags 0x00
Min settle time 0x64
Reserved: 0x00
Number of PSTs: 14
=====================
PST 0
Signature: 0x0780
FSB: 133
FID (Max Freq Code): 12
VID (Max Voltage Code): 11
Number of states: 5
=====================
PST 1
Signature: 0x0780
FSB: 133
FID (Max Freq Code): 14
VID (Max Voltage Code): 11
Number of states: 5
=====================
PST 2
Signature: 0x0780
FSB: 133
FID (Max Freq Code): 15
VID (Max Voltage Code): 9
Number of states: 5
=====================
PST 3
Signature: 0x0780
FSB: 133
FID (Max Freq Code): 0
VID (Max Voltage Code): 9
Number of states: 5
=====================
PST 4
Signature: 0x0780
FSB: 133
FID (Max Freq Code): 1
VID (Max Voltage Code): 9
Number of states: 5
=====================
PST 5
Signature: 0x0780
FSB: 133
FID (Max Freq Code): 2
VID (Max Voltage Code): 10
Number of states: 5
=====================
PST 6
Signature: 0x0780
FSB: 133
FID (Max Freq Code): 3
VID (Max Voltage Code): 10
Number of states: 6
=====================
PST 7
Signature: 0x0781
FSB: 133
FID (Max Freq Code): 15
VID (Max Voltage Code): 11
Number of states: 5
=====================
PST 8
Signature: 0x0781
FSB: 133
FID (Max Freq Code): 0
VID (Max Voltage Code): 11
Number of states: 5
=====================
PST 9
Signature: 0x0781
FSB: 133
FID (Max Freq Code): 1
VID (Max Voltage Code): 11
Number of states: 5
=====================
PST 10
Signature: 0x0781
FSB: 133
FID (Max Freq Code): 2
VID (Max Voltage Code): 11
Number of states: 5
=====================
PST 11
Signature: 0x0781
FSB: 133
FID (Max Freq Code): 3
VID (Max Voltage Code): 11
Number of states: 6
=====================
PST 12
Signature: 0x0781
FSB: 133
FID (Max Freq Code): 21
VID (Max Voltage Code): 11
Number of states: 6
=====================
PST 13
Signature: 0x0781
FSB: 133
FID (Max Freq Code): 22
VID (Max Voltage Code): 11
Number of states: 5

As you can see, even if the signature matching wasn't a requirement,
none of the FIDs or VIDs would match anyways. It's as if the PST tables
in the BIOS are just completely out of wack.

Any suggestions on where I can go from here? Obviously the fans can spin
down, as they do so properly in Microsoft Windows 2000. I have the
latest BIOS for my laptop. Also here is an attached dmesg under GENERIC.
I had to enable all ACPI otherwise this machine just powers off after a
few minutes.

I am running OpenBSD 4.1 - Current and am willing to try anything to
get rid of the evil Windows 2000 OS and use OpenBSD on this laptop.

OpenBSD 4.1-current (GENERIC) #10: Wed Jun 6 04:34:39 PDT 2007
root@compaq.devinsmith.net:/usr/src/sys/arch/i386/compile/GENERIC
cpu0: mobile AMD Athlon(tm) XP2800+ ("AuthenticAMD" 686-class, 512KB L2
cache) 2.13 GHz
cpu0:
FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MC A,CMOV,PAT,PSE36,MMX,FXSR,SSE
real mem = 468217856 (446MB)
avail mem = 443375616 (422MB)
mainbus0 at root
bios0 at mainbus0: AT/286+ BIOS, date 04/19/04, BIOS32 rev. 0 @ 0xfd730,
SMBIOS rev. 2.3 @ 0xdb010 (44 entries)
bios0: Hewlett-Packard Presario 2100 (PF179UA)
pcibios0 at bios0: rev 2.1 @ 0xfd730/0x8d0
pcibios0: PCI IRQ Routing Table rev 1.0 @ 0xfdf10/208 (11 entries)
pcibios0: PCI Interrupt Router at 000:07:0 ("Acer Labs M1533 ISA" rev 0x00)
pcibios0: PCI bus #2 is the last bus
bios0: ROM list: 0xc0000/0xf000 0xcf000/0x800 0xdb000/0x1000! 0xdc000/0x4000!
acpi0 at mainbus0: rev 0
acpi0: tables DSDT FACP BOOT SSDT
acpitimer0 at acpi0: 3579545 Hz, 32 bits
acpi device at acpi0 from table DSDT not configured
acpi device at acpi0 from table FACP not configured
acpi device at acpi0 from table BOOT not configured
acpi device at acpi0 from table SSDT not configured
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus 1 (AGPB)
acpiec0 at acpi0: EC0_
acpicpu0 at acpi0 C2, PSS
acpitz0 at acpi0, critical temperature: 100 degC
acpibtn0 at acpi0: PWRB
acpibtn1 at acpi0: LID_
acpiac0 at acpi0: AC unit online
acpibat0 at acpi0: BAT1: not present
cpu0 at mainbus0
pci0 at mainbus0 bus 0: configuration mode 1 (no bios)
pchb0 at pci0 dev 0 function 0 "ATI RS100 AGP" rev 0x13
ppb0 at pci0 dev 1 function 0 "ATI RS100 PCI" rev 0x01
pci1 at ppb0 bus 1
vga1 at pci1 dev 5 function 0 "ATI Radeon IGP 320M" rev 0x00
wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
ohci0 at pci0 dev 2 function 0 "Acer Labs M5237 USB" rev 0x03: irq 9,
version 1.0, legacy support
autri0 at pci0 dev 6 function 0 "Acer Labs M5451 Audio" rev 0x02: irq 5
ac97: codec id 0x43585429 (Conexant CX20468 rev 1)
ac97: codec features reserved, headphone, 18 bit DAC, 18 bit ADC, No 3D
Stereo
audio0 at autri0
midi0 at autri0: <4DWAVE MIDI UART>
pcib0 at pci0 dev 7 function 0 "Acer Labs M1533 ISA" rev 0x00
"Acer Labs M5457 Modem" rev 0x00 at pci0 dev 8 function 0 not configured
cbb0 at pci0 dev 10 function 0 "TI PCI1410 CardBus" rev 0x02: irq 11
pciide0 at pci0 dev 16 function 0 "Acer Labs M5229 UDMA IDE" rev 0xc4:
DMA, channel 0 wired to compatibility, channel 1 wired to compatibility
wd0 at pciide0 channel 0 drive 0: <ST93015A>
wd0: 16-sector PIO, LBA48, 28615MB, 58605120 sectors
wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 5
atapiscsi0 at pciide0 channel 1 drive 0
scsibus0 at atapiscsi0: 2 targets
cd0 at scsibus0 targ 0 lun 0: <HL-DT-ST, RW/DVD GCC-4241N, 0C29> SCSI0
5/cdrom removable
cd0(pciide0:1:0): using PIO mode 4, DMA mode 2
alipm0 at pci0 dev 17 function 0 "Acer Labs M7101 Power" rev 0x00: 74KHz
clock
iic0 at alipm0
sis0 at pci0 dev 18 function 0 "NS DP83815 10/100" rev 0x00, DP83816A: irq
11, address 00:0f:20:1f:04:bf
nsphyter0 at sis0 phy 0: DP83815 10/100 PHY, rev. 1
usb0 at ohci0: USB revision 1.0
uhub0 at usb0
uhub0: Acer Labs OHCI root hub, rev 1.00/1.00, addr 1
uhub0: 4 ports with 4 removable, self powered
isa0 at pcib0
isadma0 at isa0
pckbc0 at isa0 port 0x60/5
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pmsi0 at pckbc0 (aux slot)
pckbc0: using irq 12 for aux slot
wsmouse0 at pmsi0 mux 0
pcppi0 at isa0 port 0x61
midi1 at pcppi0: <PC speaker>
spkr0 at pcppi0
lpt0 at isa0 port 0x378/4 irq 7
npx0 at isa0 port 0xf0/16: reported by CPUID; using exception 16
pccom0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
fdc0 at isa0 port 0x3f0/6 irq 6 drq 2
cardslot0 at cbb0 slot 0 flags 0
cardbus0 at cardslot0: bus 2 device 0 cacheline 0x0, lattimer 0x20
pcmcia0 at cardslot0
biomask ef4d netmask ef4d ttymask ffcf
pctr: user-level cycle counter enabled
mtrr: Pentium Pro MTRR support
softraid0 at root
dkcsum: wd0 matches BIOS drive 0x80
root on wd0a swap on wd0b dump on wd0b
acpibat0: BAT1: inserted

Thanks in advance,

--
Devin Smith