Date: Thu, 03 Aug 2006 10:47:57 +0300 From: Yousef Raffah <yraffah@savola.com> To: freebsd-mobile@freebsd.org Subject: Re: Interrupt Storms on irq:11 with Tecra A4 Message-ID: <44D1AA2D.5000901@savola.com> In-Reply-To: <200608021028.09765.jhb@freebsd.org> References: <1152019643.704.42.camel@redevil.savola.com> <1152358151.679.27.camel@redevil.savola.com> <44D03E9F.1040409@savola.com> <200608021028.09765.jhb@freebsd.org>
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John Baldwin wrote:
> On Wednesday 02 August 2006 01:56, Yousef Raffah wrote:
> =20
>> Updating to (7.0-CURRENT #1: Mon Jul 17 20:06:47 AST 2006) has a work=
ing
>> acpi on my laptop but the interrupt storm is still there. I have incl=
uded
>> below a verbose dmesg with acpi enabled as per your request. I would =
really=20
>> appreciate any help you can offer :) =20
>> =20
>> pci_link6: Links after initial probe:
>> Index=EF=BF=BD IRQ=EF=BF=BD Rtd=EF=BF=BD Ref=EF=BF=BD IRQs
>> =EF=BF=BD=EF=BF=BD=EF=BF=BD 0=EF=BF=BD=EF=BF=BD 11=EF=BF=BD=EF=BF=BD =
N=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD 0=EF=BF=BD 6
>> pci_link6: Links after initial validation:
>> Index=EF=BF=BD IRQ=EF=BF=BD Rtd=EF=BF=BD Ref=EF=BF=BD IRQs
>> =EF=BF=BD=EF=BF=BD=EF=BF=BD 0=EF=BF=BD 255=EF=BF=BD=EF=BF=BD N=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD 0=EF=BF=BD 6
>> pci_link6: Links after disable:
>> Index=EF=BF=BD IRQ=EF=BF=BD Rtd=EF=BF=BD Ref=EF=BF=BD IRQs
>> =EF=BF=BD=EF=BF=BD=EF=BF=BD 0=EF=BF=BD 255=EF=BF=BD=EF=BF=BD N=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD 0=EF=BF=BD 6
>> pci_link7: Links after initial probe:
>> Index=EF=BF=BD IRQ=EF=BF=BD Rtd=EF=BF=BD Ref=EF=BF=BD IRQs
>> =EF=BF=BD=EF=BF=BD=EF=BF=BD 0=EF=BF=BD=EF=BF=BD 11=EF=BF=BD=EF=BF=BD =
N=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD 0=EF=BF=BD 5 10
>> pci_link7: Links after initial validation:
>> Index=EF=BF=BD IRQ=EF=BF=BD Rtd=EF=BF=BD Ref=EF=BF=BD IRQs
>> =EF=BF=BD=EF=BF=BD=EF=BF=BD 0=EF=BF=BD 255=EF=BF=BD=EF=BF=BD N=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD 0=EF=BF=BD 5 10
>> pci_link7: Links after disable:
>> Index=EF=BF=BD IRQ=EF=BF=BD Rtd=EF=BF=BD Ref=EF=BF=BD IRQs
>> =EF=BF=BD=EF=BF=BD=EF=BF=BD 0=EF=BF=BD 255=EF=BF=BD=EF=BF=BD N=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD 0=EF=BF=BD 5 10
>> =20
>
> Well, these two appear to be your problem due to your BIOS having buggy=
ASL. =20
> You can work around it, but you'll need to figure out the names of your=
link=20
> devices first. 'devinfo -v' with ACPI enabled can help with that. For=
=20
> example, on my laptop:
>
> % devinfo -v | grep 'pci_link[67]'
> pci_link6 pnpinfo _HID=3DPNP0C0F _UID=3D106 at handle=3D\_SB_.C002.=
C0F2
> pci_link7 pnpinfo _HID=3DPNP0C0F _UID=3D107 at handle=3D\_SB_.C002.=
C0F3
>
> =20
Here is my devinfo
devinfo -v | grep 'pci_link[67]'
pci_link6 pnpinfo _HID=3DPNP0C0F _UID=3D7 at handle=3D\_SB_.PCI0.LPCB=
=2ELNKG
pci_link7 pnpinfo _HID=3DPNP0C0F _UID=3D8 at handle=3D\_SB_.PCI0.LPCB=
=2ELNKH
So I can see that pci_link6 is named LNKG and pci_link7 is LNKH
> pci_link6 is called C0F2, and pci_link7 is called C0F3. You'll use the=
se=20
> names to override the IRQ for the link device by setting the following =
> variables in the loader:
>
> hw.pci.link.C0F2.irq=3D11
> hw.pci.link.C0F3.irq=3D11
>
> (You'll have to replace C0F2 and C0F3 with the names for your link devi=
ces. =20
> Probably LNKF and LNKG.)
>
> =20
Based on that, I should have the following in my /boot/loader.conf?
hw.pci.link.LNKG.irq=3D11
hw.pci.link.LNKH.irq=3D11
> You might also need this patch (but try the tunables above without the =
patch=20
> first to be sure):
>
> Index: dev/acpica/acpi_pci_link.c
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> RCS file: /usr/cvs/src/sys/dev/acpica/acpi_pci_link.c,v
> retrieving revision 1.53
> diff -u -r1.53 acpi_pci_link.c
> --- dev/acpica/acpi_pci_link.c 6 Jan 2006 16:14:32 -0000 1.53
> +++ dev/acpica/acpi_pci_link.c 2 Aug 2006 14:27:09 -0000
> @@ -941,18 +941,16 @@
> KASSERT(!PCI_INTERRUPT_VALID(link->l_irq),
> ("%s: link already has an IRQ", __func__));
> =20
> - /* Check for a tunable override and use it if it is valid. */
> + /* Check for a tunable override. */
> if (ACPI_SUCCESS(acpi_short_name(acpi_get_handle(dev), link_name,
> sizeof(link_name)))) {
> snprintf(tunable_buffer, sizeof(tunable_buffer),
> "hw.pci.link.%s.%d.irq", link_name, link->l_res_index);
> - if (getenv_int(tunable_buffer, &i) &&
> - PCI_INTERRUPT_VALID(i) && link_valid_irq(link, i))
> + if (getenv_int(tunable_buffer, &i) && PCI_INTERRUPT_VALID(i))
> return (i);
> snprintf(tunable_buffer, sizeof(tunable_buffer),
> "hw.pci.link.%s.irq", link_name);
> - if (getenv_int(tunable_buffer, &i) &&
> - PCI_INTERRUPT_VALID(i) && link_valid_irq(link, i))
> + if (getenv_int(tunable_buffer, &i) && PCI_INTERRUPT_VALID(i))
> return (i);
> }
> =20
>
> =20
Let us try the loader file first and see if we need the patch after that.=
Thank you so much for looking in to this :)
--=20
Sincerely,
Yousef Adnan Raffah
The Savola Group
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