[ACPI-sppt] Missing C states & thermal stuff on P4M

Hi --

I've recently been told (by what I consider a reliable source) that
CPU power states (C1, C2 etc) are supported by all mobile Pentium 4
processors. I have one such processor in my laptop (a HiGrade R5400,
which is basically a rebadged Gericom X5/Twinhead P1400); however,
these states don't appear to be supported beyond the default C1 state:

Output from "cat /proc/acpi/processor/CPU1/info":

processor id:            0
acpi id:                 1
bus mastering control:   no
power management:        no
throttling control:      yes
performance management:  no
limit interface:         yes

Output from "cat /proc/acpi/processor/CPU1/power":

active state:            C1
default state:           C1
bus master activity:     00000000
states:
   *C1:                  promotion[--] demotion[--] latency[000] usage[00000000]
    C2:                  <not supported>
    C3:                  <not supported>

In addition, my /proc/acpi/thermal_zone directory is empty, which
worries me -- does this mean that I have no thermal protection?

Any pointers as to what is going on? For info, I attach my dmesg
output below:

Linux version 2.4.21-rc4-ac1 (root@cmell) (gcc version 3.2.2) #1 Fri Jun 13 17:16:59 BST 2003
BIOS-provided physical RAM map:
 BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
 BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
 BIOS-e820: 00000000000ce000 - 00000000000d2000 (reserved)
 BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
 BIOS-e820: 0000000000100000 - 00000000177f0000 (usable)
 BIOS-e820: 00000000177f0000 - 00000000177f8000 (ACPI data)
 BIOS-e820: 00000000177f8000 - 0000000017800000 (ACPI NVS)
 BIOS-e820: 00000000fff80000 - 0000000100000000 (reserved)
375MB LOWMEM available.
ACPI: have wakeup address 0xc0001000
On node 0 totalpages: 96240
zone(0): 4096 pages.
zone(1): 92144 pages.
zone(2): 0 pages.
ACPI: RSDP (v000 AMI                        ) @ 0x000faf80
ACPI: RSDT (v001 AMIINT VIA_P6   00000.00016) @ 0x177f0000
ACPI: FADT (v001 AMIINT VIA_P6   00000.00017) @ 0x177f0030
ACPI: DSDT (v001    VIA   P4N266 00000.04096) @ 0x00000000
ACPI: BIOS passes blacklist
Kernel command line: root=/dev/hda2 vga=791 ALTEREGO=ucl
Initializing CPU#0
Detected 1791.251 MHz processor.
Console: colour dummy device 80x25
Calibrating delay loop... 3565.15 BogoMIPS
Memory: 378088k/384960k available (1464k kernel code, 6484k reserved, 526k data, 96k init, 0k highmem)
Dentry cache hash table entries: 65536 (order: 7, 524288 bytes)
Inode cache hash table entries: 32768 (order: 6, 262144 bytes)
Mount cache hash table entries: 512 (order: 0, 4096 bytes)
Buffer cache hash table entries: 32768 (order: 5, 131072 bytes)
Page-cache hash table entries: 131072 (order: 7, 524288 bytes)
CPU: Trace cache: 12K uops, L1 D cache: 8K
CPU: L2 cache: 512K
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
CPU:     After generic, caps: bfebf9ff 00000000 00000000 00000000
CPU:             Common caps: bfebf9ff 00000000 00000000 00000000
CPU: Intel Mobile Intel(R) Pentium(R) 4 - M CPU 1.80GHz stepping 07
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... OK.
POSIX conformance testing by UNIFIX
mtrr: v1.40 (20010327) Richard Gooch ([email protected])
mtrr: detected mtrr type: Intel
ACPI: Subsystem revision 20030424
PCI: PCI BIOS revision 2.10 entry at 0xfdb51, last bus=1
PCI: Using configuration type 1
ACPI: Interpreter enabled
ACPI: Using PIC for interrupt routing
ACPI: System [ACPI] (supports S0 S3 S4 S5)
ACPI: PCI Root Bridge [PCI0] (00:00)
PCI: Probing PCI hardware (bus 00)
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT]
ACPI: Power Resource [URP1] (off)
ACPI: Embedded Controller [EC0] (gpe 5)
ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 7 10 *11 12 14 15)
ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 7 10 11 12 14 15, disabled)
ACPI: PCI Interrupt Link [LNKC] (IRQs 3 10 11, enabled at IRQ 5)
ACPI: PCI Interrupt Link [LNKD] (IRQs 5 6 7, enabled at IRQ 10)
PCI: Probing PCI hardware
ACPI: PCI Interrupt Link [LNKB] enabled at IRQ 11
PCI: No IRQ known for interrupt pin A of device 00:11.1 - using IRQ 255
PCI: Using ACPI for IRQ routing
PCI: if you experience problems, try using option 'pci=noacpi' or even 'acpi=off'
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
cpufreq: Intel(R) SpeedStep(TM) for this chipset not (yet) available.
cpufreq: P4/Xeon(TM) CPU On-Demand Clock Modulation available
Starting kswapd
VFS: Disk quotas vdquot_6.5.1
Journalled Block Device driver loaded
devfs: v1.12c (20020818) Richard Gooch ([email protected])
devfs: boot_options: 0x1
ACPI: AC Adapter [AC0] (on-line)
ACPI: Battery Slot [BAT0] (battery present)
ACPI: Power Button (FF) [PWRF]
ACPI: Lid Switch [LIDD]
ACPI: Sleep Button (CM) [SLPB]
ACPI: Processor [CPU1] (supports C1, 16 throttling states)
vesafb: framebuffer at 0xd0000000, mapped to 0xd8008000, size 1536k
vesafb: mode is 1024x768x16, linelength=2048, pages=3
vesafb: protected mode interface info at c000:8cd4
vesafb: scrolling: redraw
vesafb: directcolor: size=0:5:6:5, shift=0:11:5:0
Console: switching to colour frame buffer device 128x48
fb0: VESA VGA frame buffer device
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
ttyS00 at 0x03f8 (irq = 4) is a 16550A
Uniform Multi-Platform E-IDE driver Revision: 7.00beta4-2.4
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
VP_IDE: IDE controller at PCI slot 00:11.1
PCI: No IRQ known for interrupt pin A of device 00:11.1 - using IRQ 255
VP_IDE: chipset revision 6
VP_IDE: not 100% native mode: will probe irqs later
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
VP_IDE: VIA vt8233 (rev 00) IDE UDMA100 controller on pci00:11.1
    ide0: BM-DMA at 0xfc00-0xfc07, BIOS settings: hda:DMA, hdb:pio
    ide1: BM-DMA at 0xfc08-0xfc0f, BIOS settings: hdc:DMA, hdd:pio
hda: HITACHI_DK23EA-60, ATA DISK drive
blk: queue c0333460, I/O limit 4095Mb (mask 0xffffffff)
hdc: QSI CD-RW/DVD-ROM SBW-241, ATAPI CD/DVD-ROM drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15
hda: attached ide-disk driver.
hda: host protected area => 1
hda: 117210240 sectors (60012 MB) w/2048KiB Cache, CHS=7296/255/63, UDMA(100)
hdc: attached ide-cdrom driver.
hdc: ATAPI 24X DVD-ROM CD-R/RW drive, 2048kB Cache, UDMA(33)
Uniform CD-ROM driver Revision: 3.12
Partition check:
 /dev/ide/host0/bus0/target0/lun0: p1 p2 p3 p4 < p5 p6 p7 p8 p9 p10 >
Linux Kernel Card Services 3.1.22
  options:  [pci] [cardbus] [pm]
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 4096 buckets, 32Kbytes
TCP: Hash tables configured (established 32768 bind 65536)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
Yenta IRQ list 00c0, PCI irq5
Socket status: 30000006
reiserfs: checking transaction log (device 03:02) ...
Using r5 hash to sort names
ReiserFS version 3.6.25
VFS: Mounted root (reiserfs filesystem) readonly.
Mounted devfs on /dev
Freeing unused kernel memory: 96k freed
Adding Swap: 771080k swap-space (priority -1)
usb.c: registered new driver usbdevfs
usb.c: registered new driver hub
uhci.c: USB Universal Host Controller Interface driver v1.1
uhci.c: USB UHCI at I/O 0xec00, IRQ 10
usb.c: new USB bus registered, assigned bus number 1
hub.c: USB hub found
hub.c: 2 ports detected
uhci.c: USB UHCI at I/O 0xe800, IRQ 10
usb.c: new USB bus registered, assigned bus number 2
hub.c: USB hub found
hub.c: 2 ports detected
uhci.c: USB UHCI at I/O 0xd800, IRQ 10
usb.c: new USB bus registered, assigned bus number 3
hub.c: USB hub found
hub.c: 2 ports detected
uhci.c: USB UHCI at I/O 0xd400, IRQ 10
usb.c: new USB bus registered, assigned bus number 4
hub.c: USB hub found
hub.c: 2 ports detected
ehci-hcd 00:07.2: VIA Technologies, Inc. USB 2.0
ehci-hcd 00:07.2: irq 10, pci mem d82bef00
usb.c: new USB bus registered, assigned bus number 5
PCI: 00:07.2 PCI cache line size set incorrectly (32 bytes) by BIOS/FW.
PCI: 00:07.2 PCI cache line size corrected to 128.
ehci-hcd 00:07.2: USB 2.0 enabled, EHCI 0.95, driver 2003-Jan-22
hub.c: USB hub found
hub.c: 4 ports detected
Via 686a/8233/8235 audio driver 1.9.1-ac2
via82cxxx: Six channel audio available
PCI: Setting latency timer of device 00:11.5 to 64
ac97_codec: AC97 Audio codec, id: VIA97 (Unknown)
via82cxxx: board #1 at 0xDC00, IRQ 5
reiserfs: checking transaction log (device 03:05) ...
hub.c: new USB device 00:11.2-1, assigned address 2
Using r5 hash to sort names
usb.c: USB device 2 (vend/prod 0x9aa/0x3642) is not claimed by any active driver.
ReiserFS version 3.6.25
reiserfs: checking transaction log (device 03:06) ...
Using r5 hash to sort names
ReiserFS version 3.6.25
reiserfs: checking transaction log (device 03:08) ...
Using r5 hash to sort names
ReiserFS version 3.6.25
reiserfs: checking transaction log (device 03:09) ...
Using r5 hash to sort names
ReiserFS version 3.6.25
Real Time Clock Driver v1.10e
hdc: CHECK for good STATUS
via-rhine.c:v1.10-LK1.1.17  March-1-2003  Written by Donald Becker
  http://www.scyld.com/network/via-rhine.html
eth1: VIA VT6102 Rhine-II at 0xdffffe00, 00:40:45:0d:d4:7b, IRQ 11.
eth1: MII PHY found at address 1, status 0x7869 advertising 05e1 Link 45e1.
eth1: Setting full-duplex based on MII #1 link partner capability of 45e1.
ip_tables: (C) 2000-2002 Netfilter core team
ip_conntrack version 2.1 (3007 buckets, 24056 max) - 292 bytes per conntrack



-------------------------------------------------------
This SF.NET email is sponsored by: eBay
Great deals on office technology -- on eBay now! Click here:
http://adfarm.mediaplex.com/ad/ck/711-11697-6916-5