odd irq routing errors?

odd irq routing errors?

[Faye Pearson]

This is for the IRQ allocation gurus.
More information on http://dude.noc.clara.net/~faye/

All refer to the IDE controller...

PCI: Ignoring BAR0-3 of IDE controller 00:1f.1
 pci_irq-0297 [09] acpi_pci_irq_derive   : Unable to derive IRQ for
 device 00:1f.1
PCI: No IRQ known for interrupt pin A of device 00:1f.1 - using IRQ 255
ICH3M: IDE controller at PCI slot 00:1f.1
PCI: Enabling device 00:1f.1 (0005 -> 0007)
 pci_irq-0297 [12] acpi_pci_irq_derive   : Unable to derive IRQ for
 device 00:1f.1
PCI: No IRQ known for interrupt pin A of device 00:1f.1 - using IRQ 255

But then:

ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15

Looks like it has the correct IRQs.

root@marmite acpi # cat /proc/interrupts
           CPU0
  0:     200347          XT-PIC  timer
  1:        385          XT-PIC  keyboard
  2:          0          XT-PIC  cascade
  3:       3253          XT-PIC  orinoco_cs
  8:          2          XT-PIC  rtc
  9:         11          XT-PIC  acpi, Intel ICH3, i82365
 11:          2          XT-PIC  sonypi
 14:       6969          XT-PIC  ide0
 15:          0          XT-PIC  ide1
NMI:          0
ERR:          0

pcmcia-cs have allocated irq3 to the orinoco_cs but ACPI doesn't know
anything about that IRQ.  orinoco_cs seems to be working just fine
though.

ACPI: Embedded Controller [EC0] (gpe 28)
schedule_task(): keventd has not started
ACPI: PCI Interrupt Link [LNKA] (IRQs *9)
ACPI: PCI Interrupt Link [LNKB] (IRQs 9, disabled)
ACPI: PCI Interrupt Link [LNKC] (IRQs 9, disabled)
ACPI: PCI Interrupt Link [LNKD] (IRQs *9)
ACPI: PCI Interrupt Link [LNKE] (IRQs *9)
pci_link-0219 [14] acpi_pci_link_get_curr: Blank IRQ resource
ACPI: PCI Interrupt Link [LNKF] (IRQs 9, disabled)
ACPI: PCI Interrupt Link [LNKG] (IRQs 9, disabled)
ACPI: PCI Interrupt Link [LNKH] (IRQs 9, disabled)
PCI: Probing PCI hardware
ACPI: PCI Interrupt Link [LNKB] enabled at IRQ 9
ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 9
ACPI: PCI Interrupt Link [LNKF] enabled at IRQ 9
ACPI: PCI Interrupt Link [LNKG] enabled at IRQ 9
ACPI: PCI Interrupt Link [LNKH] enabled at IRQ 9

>From lspci:

00:1f.1 IDE interface: Intel Corp. 82801CAM IDE U100 (rev 02) (prog-if
8a [Master SecP PriP])
        Subsystem: Sony Corporation: Unknown device 80fa
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
		ParErr- Stepping- SERR- FastB2B-
        Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
		<TAbort- <MAbort- >SERR- <PERR-
        Latency: 0
        Interrupt: pin A routed to IRQ 255
        Region 0: I/O ports at <ignored>
        Region 1: I/O ports at <ignored>
        Region 2: I/O ports at <ignored>
        Region 3: I/O ports at <ignored>
        Region 4: I/O ports at 1860 [size=16]
        Region 5: Memory at e8000000 (32-bit, non-prefetchable)
		[size=1K]

I think the ports being ignored are these:

0170-0177 : ide1
01f0-01f7 : ide0
0376-0376 : ide1
03f6-03f6 : ide0


-- 
Faye Pearson,
Covert Development
ClaraNET Ltd.       Tel 020 7903 3000

Traffic signals in New York are just rough guidelines.
		-- David Letterman


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Re: odd irq routing errors?

[Anders Rune Jensen]

Faye Pearson <faye-6JSjyQ0Qj1ReoWH0uzbU5w@public.gmane.org> writes:

> This is for the IRQ allocation gurus.
> More information on http://dude.noc.clara.net/~faye/
>
> All refer to the IDE controller...
>
> PCI: Ignoring BAR0-3 of IDE controller 00:1f.1
>  pci_irq-0297 [09] acpi_pci_irq_derive   : Unable to derive IRQ for
>  device 00:1f.1
> PCI: No IRQ known for interrupt pin A of device 00:1f.1 - using IRQ 255
> ICH3M: IDE controller at PCI slot 00:1f.1
> PCI: Enabling device 00:1f.1 (0005 -> 0007)
>  pci_irq-0297 [12] acpi_pci_irq_derive   : Unable to derive IRQ for
>  device 00:1f.1
> PCI: No IRQ known for interrupt pin A of device 00:1f.1 - using IRQ 255
>
> But then:
>
> ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
> ide1 at 0x170-0x177,0x376 on irq 15
>
> Looks like it has the correct IRQs.

I've had the same problem with acpi assigning IRQ 255 to some devices
but in my case I wasn't even able to boot. All of this was explained
in my last mail to this list. My ide controller is a ICH2M.

-- 
Anders Rune Jensen



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Re: odd irq routing errors?

[Alan Cox]

On Thu, 2003-02-20 at 15:33, Anders Rune Jensen wrote:
> > PCI: No IRQ known for interrupt pin A of device 00:1f.1 - using IRQ 255
> > ICH3M: IDE controller at PCI slot 00:1f.1
> > PCI: Enabling device 00:1f.1 (0005 -> 0007)
> >  pci_irq-0297 [12] acpi_pci_irq_derive   : Unable to derive IRQ for
> >  device 00:1f.1
> > PCI: No IRQ known for interrupt pin A of device 00:1f.1 - using IRQ 255

This is the ACPI version of a bug I fixed in 2.4 base. If both channels are
in legacy mode its wrong to ask the ACPI layer or the PCI BIOS layer or
indeed anyone in PCI where the chip IRQ is routed. Legacy irq routing doesn't
go via PCI.



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Re: odd irq routing errors?

[Matthew Harrell]

So is this problem listed below the same as the one I'm having on my laptop?
I cannot boot any 2.5.6? kernels with acpi turned on since once acpid starts
the laptop slows down horrendously, many programs seg fault or the scripts
give bizarre results, and the ide controller spits out numerous messages.  Is
there anything I can do to fix this problem?  



: Faye Pearson writes:
: > This is for the IRQ allocation gurus.
: > More information on http://dude.noc.clara.net/~faye/
: >
: > All refer to the IDE controller...
: >
: > PCI: Ignoring BAR0-3 of IDE controller 00:1f.1
: >  pci_irq-0297 [09] acpi_pci_irq_derive   : Unable to derive IRQ for
: >  device 00:1f.1
: > PCI: No IRQ known for interrupt pin A of device 00:1f.1 - using IRQ 255
: > ICH3M: IDE controller at PCI slot 00:1f.1
: > PCI: Enabling device 00:1f.1 (0005 -> 0007)
: >  pci_irq-0297 [12] acpi_pci_irq_derive   : Unable to derive IRQ for
: >  device 00:1f.1
: > PCI: No IRQ known for interrupt pin A of device 00:1f.1 - using IRQ 255
: >
: > But then:
: >
: > ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
: > ide1 at 0x170-0x177,0x376 on irq 15
: >
: > Looks like it has the correct IRQs.
: 
: I've had the same problem with acpi assigning IRQ 255 to some devices
: but in my case I wasn't even able to boot. All of this was explained
: in my last mail to this list. My ide controller is a ICH2M.

-- 
  Matthew Harrell                          Programmer - a red-eyed mumbling
  Bit Twiddlers, Inc.                       mammal capable of conversing with
  mharrell-bmWjYudjZeGERhycZ4x6Ig@public.gmane.org                 inanimate objects.


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