This patch is intended to disable L0s ASPM link state for 82598 (ixgbe)
parts due to the fact that it is possible to corrupt TX data when coming
back out of L0s on some systems.  The workaround had been added for 82575
(igb) previously, but did not use the ASPM api.  This quirk uses the ASPM
api to prevent the ASPM subsystem from re-enabling the L0s state.

Instead of adding the fix in igb to the ixgbe driver as well it was
decided to move it into a pci quirk.  It is necessary to move the fix out
of the driver and into a pci quirk in order to prevent the issue from
occuring prior to driver load to handle the possibility of the device being
passed to a VM via direct assignment.
Signed-off-by: NAlexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
CC: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: NMatthew Wilcox <willy@linux.intel.com>

Turns out that the new AMD 813x devices do not need the
quirk_disable_amd_813x_boot_interrupt quirk to be run on them.  If it
is, no interrupts are seen on the PCI-X adapter.

From: Stefan Assmann <sassmann@novell.com>
Reported-by: NJamie Wellnitz <Jamie.Wellnitz@emulex.com>
Tested-by: NJamie Wellnitz <Jamie.Wellnitz@emulex.com>
Cc: stable <stable@kernel.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: NJesse Barnes <jbarnes@hobbes.lan>

Prakash reported that his c51-mcp51 ondie sound card doesn't work with
MSI.  But if he hacks out the HT-MSI quirk, MSI works fine.

So this patch reworks the nv_msi_ht_cap_quirk().  It will now only
enable ht_msi on own its root device, avoiding enabling it on devices
following that root dev.
Reported-by: NPrakash Punnoor <prakash@punnoor.de>
Tested-by: NPrakash Punnoor <prakash@punnoor.de>
Signed-off-by: NYinghai Lu <yinghai@kernel.org>
Signed-off-by: NJesse Barnes <jbarnes@hobbes.lan>

David reported that LSI SAS doesn't work with MSI.  It turns out that
his BIOS doesn't enable it, but the HT MSI 8132 does support HT MSI.
Add quirk to enable it

Cc: stable@kernel.org
Reported-by: NDavid Lang <david@lang.hm>
Signed-off-by: NYinghai Lu <yinghai@kernel.org>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>

All the other quirks are dev_info() not dev_err(), this one isn't special.
This makes 'quiet' boot in qemu really quiet.
Signed-off-by: NAdam Jackson <ajax@redhat.com>
Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Tejun Heo <htejun@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>

This adds more LPC controller IO range decode quirks for the Intel ICH
family of chipsets. They differ a bit between the older ICH6 chipset and
the more modern layout of the ICH7-ICH10 chipsets.

This patch just prints out the IO decode information found by the quirks,
but eventually we may want to add them to the resource tree, in order to
know to avoid allocating things over them.

That's especially true if it turns out that any firmware ends up putting
the magic motherboard resources in an address range that we use for
dynamic allocations (ie above PCIBIOS_MIN_IO, which is 0x1000 on x86).
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Greg KH <greg@kroah.com>
Cc: Frans Pop <elendil@planet.nl>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>

Had a space before tab in do_fixups, prototype wasn't wrapped properly either.
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>

Signed-off-by: NAndreas Petlund <andreas@petlund.no>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

VPD quirks need to be called after the VPD capability is initialized.
Since VPD initialization now runs after pci_fixup_header (due to the
capabilities consolidation), VPD quirks should be done at
pci_fixup_final stage correspondingly.
Tested-by: NEric Dumazet <dada1@cosmosbay.com>
Signed-off-by: NYu Zhao <yu.zhao@intel.com>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>

On Thu, Oct 23, 2008 at 04:09:52PM -0700, Alexander Beregalov wrote:
> arch/x86/kernel/built-in.o: In function `iommu_setup':
> pci-dma.c:(.init.text+0x36ad): undefined reference to `forbid_dac'
> pci-dma.c:(.init.text+0x36cc): undefined reference to `forbid_dac'
> pci-dma.c:(.init.text+0x3711): undefined reference to `forbid_dac

This patch partially reverts a patch to add IOMMU support to ia64.  The
forbid_dac variable was incorrectly moved to quirks.c, which isn't built
when PCI is disabled.
Tested-by: N"Alexander Beregalov" <a.beregalov@gmail.com>
Acked-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: NFenghua Yu <fenghua.yu@intel.com>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>

No longer needed since we don't use the function symbol stuff anymore.
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>

Use %pF instead of print_fn_descriptor_symbol() in quirks.c to get the name of
the hook we're calling.
Signed-off-by: NYinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>

This patch adds the CONFIG_PCI_QUIRKS option which allows to remove all
the PCI quirks, which are not necessarily used on embedded systems when
PCI is working properly. As this is a size-reduction option, it depends
on CONFIG_EMBEDDED. It allows to save almost 12 kilobytes of kernel
code:

   text	   data	    bss	    dec	    hex	filename
1287806	 123596	 212992	1624394	 18c94a	vmlinux.old
1275854	 123596	 212992	1612442	 189a9a	vmlinux
 -11952       0       0  -11952   -2EB0 +/-

This patch has originally been written by Zwane Mwaikambo
<zwane@arm.linux.org.uk> and is part of the Linux Tiny project.
Signed-off-by: NThomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>

The current Intel IOMMU code assumes that both host page size and Intel
IOMMU page size are 4KiB. The first patch supports variable page size.
This provides support for IA64 which has multiple page sizes.

This patch also adds some other code hooks for IA64 platform including
DMAR_OPERATION_TIMEOUT definition.

[dwmw2: some cleanup]
Signed-off-by: NFenghua Yu <fenghua.yu@intel.com>
Signed-off-by: NTony Luck <tony.luck@intel.com>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

I dunno how this missed Bjorn and his quest to use %pF in commit
c80cfb04 ("vsprintf: use new vsprintf
symbolic function pointer format"), but it did.

So use %pF in the two remaining places that still tried to print out
function pointers by hand.
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

BCM5706S wont work correctly unless VPD length truncated to 128
Signed-off-by: NDean Hildebrand <dhildeb@us.ibm.com>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>

BCM5708S wont work correctly unless VPD length truncated to 128
Signed-off-by: NEric Dumazet <dada1@cosmosbay.com>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>

Libata has some hacks to deal with certain controllers going silly in D3
state. The right way to handle this is to keep a PCI device flag for
such devices. That can then be generalised for no ATA devices with power
problems.
Signed-off-by: NAlan Cox <alan@redhat.com>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>

x86, pci: introduce config option for pci reroute quirks (was: [PATCH 0/3] Boot IRQ quirks for Broadcom and AMD/ATI)

This is against linux-2.6-tip, branch pci-ioapic-boot-irq-quirks.

From: Stefan Assmann <sassmann@suse.de>
Subject: Introduce config option for pci reroute quirks

The config option X86_REROUTE_FOR_BROKEN_BOOT_IRQS is introduced to
enable (or disable) the redirection of the interrupt handler to the boot
interrupt line by default. Depending on the existence of interrupt
masking / threaded interrupt handling in the kernel (vanilla, rt, ...)
and the maturity of the rerouting patch, users can enable or disable the
redirection by default.

This means that the reroute quirk can be applied to any kernel without
changing it.

Interrupt sharing could be increased if this option is enabled. However this
option is vital for threaded interrupt handling, as done by the RT kernel.
It should simplify the consolidation with the RT kernel.

The option can be overridden by either pci=ioapicreroute or
pci=noioapicreroute.
Signed-off-by: NStefan Assmann <sassmann@suse.de>
Signed-off-by: NOlaf Dabrunz <od@suse.de>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Jon Masters <jonathan@jonmasters.org>
Cc: Ihno Krumreich <ihno@suse.de>
Cc: Sven Dietrich <sdietrich@suse.de>
Cc: Daniel Gollub <dgollub@suse.de>
Cc: Felix Foerster <ffoerster@suse.de>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

It is not necessary to call boot IRQ quirks before the BARs of the bridges are
probed. The normal case is to use DECLARE_PCI_FIXUP_FINAL, so we use this
instead now.

After a resume, we need to call the quirks again.
Signed-off-by: NOlaf Dabrunz <od@suse.de>
Signed-off-by: NStefan Assmann <sassmann@suse.de>
Cc: Jon Masters <jonathan@jonmasters.org>
Cc: Olaf Dabrunz <od@suse.de>
Cc: Stefan Assmann <sassmann@suse.de>
Cc: Ihno Krumreich <ihno@suse.de>
Cc: Sven Dietrich <sdietrich@suse.de>
Cc: Daniel Gollub <dgollub@suse.de>
Cc: Felix Foerster <ffoerster@suse.de>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

Add quirks for several AMD/ATI chipsets to prevent generation of legacy boot
interrupts.

Integrates a separate older quirk to make IO-APIC mode work on
AMD 8131 rev. A0 and B0, which was due to an AMD erratum.
Signed-off-by: NOlaf Dabrunz <od@suse.de>
Signed-off-by: NStefan Assmann <sassmann@suse.de>
Cc: Jon Masters <jonathan@jonmasters.org>
Cc: Olaf Dabrunz <od@suse.de>
Cc: Stefan Assmann <sassmann@suse.de>
Cc: Ihno Krumreich <ihno@suse.de>
Cc: Sven Dietrich <sdietrich@suse.de>
Cc: Daniel Gollub <dgollub@suse.de>
Cc: Felix Foerster <ffoerster@suse.de>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

Signed-off-by: NOlaf Dabrunz <od@suse.de>
Signed-off-by: NStefan Assmann <sassmann@suse.de>
Cc: Jon Masters <jonathan@jonmasters.org>
Cc: Olaf Dabrunz <od@suse.de>
Cc: Stefan Assmann <sassmann@suse.de>
Cc: Ihno Krumreich <ihno@suse.de>
Cc: Sven Dietrich <sdietrich@suse.de>
Cc: Daniel Gollub <dgollub@suse.de>
Cc: Felix Foerster <ffoerster@suse.de>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

This patch just fixes the compiler warning:

  drivers/pci/quirks.c: In function ‘quirk_reroute_to_boot_interrupts_intel’:
  drivers/pci/quirks.c:1375: warning: unused variable ‘i’
Signed-off-by: NBernhard Walle <bwalle@suse.de>
Cc: sassmann@suse.de
Signed-off-by: NIngo Molnar <mingo@elte.hu>

Some chipsets (e.g. intel 6700PXH) generate a legacy INTx when the
IRQ entry in the chipset's IO-APIC is masked (as, e.g. the RT kernel
does during interrupt handling). On chipsets where this INTx generation
cannot be disabled, we reroute the valid interrupts to their legacy
equivalent to get rid of spurious interrupts that might otherwise bring
down (vital) interrupt lines through spurious interrupt detection in
note_interrupt().

This patch benefited from discussions with Alexander Graf, Torsten Duwe,
Ihno Krumreich, Daniel Gollub, Hannes Reinecke. The conclusions we drew
and the patch itself are the authors' responsibility alone.
Signed-off-by: NStefan Assmann <sassmann@suse.de>
Signed-off-by: NOlaf Dabrunz <od@suse.de>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

Add a quirk to disable legacy boot interrupt generation on intel devices
that support disabling it.

This patch benefited from discussions with Alexander Graf, Torsten Duwe,
Ihno Krumreich, Daniel Gollub, Hannes Reinecke. The conclusions we drew
and the patch itself are the authors' responsibility alone.
Signed-off-by: NStefan Assmann <sassmann@suse.de>
Signed-off-by: NOlaf Dabrunz <od@suse.de>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

It seems VT3336 can't do msi either as with its bro 3351.  Disable it.
Reported in the following SUSE bug.

  https://bugzilla.novell.com/show_bug.cgi?id=300001Signed-off-by: NTejun Heo <tj@kernel.org>
Acked-by: NJesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

For Broadcom 5706, 5708, 5709 rev. A nics, any read beyond the
VPD end tag will hang the device.  This problem was initially
observed when a vpd entry was created in sysfs
('/sys/bus/pci/devices/<id>/vpd').   A read to this sysfs entry
will dump 32k of data.  Reading a full 32k will cause an access
beyond the VPD end tag causing the device to hang.  Once the device
is hung, the bnx2 driver will not be able to reset the device.
We believe that it is legal to read beyond the end tag and
therefore the solution is to limit the read/write length.

A majority of this patch is from Matthew Wilcox who gave code for
reworking the PCI vpd size information.  A PCI quirk added for the
Broadcom NIC's to limit the read/write's.
Signed-off-by: NBenjamin Li <benli@broadcom.com>
Signed-off-by: NMatthew Wilcox <willy@linux.intel.com>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>

This patch unhides the SMBus on Compaq Deskpro EN
SFF P667 with the Intel 815E chipset. Unhiding it reveals
a THMC51 hardware monitoring chip.

Jean Delvare has checked that this machine has no ACPI
magic touching the SMBus nor the hardware monitoring chip,
so this should be safe.

The patch was tested on Fedora Core 9 with 2.6.25.4 kernel.
Signed-off-by: NKrzysztof Helt <krzysztof.h1@wp.pl>
Tested-by: NRafał Haładuda <rh1985@wp.pl>
CC: Jean Delvare <khali@linux-fr.org>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>

One more machine with a hidden Intel SMBus. Unhiding it reveals a SMSC
EMC6D100 hardware monitoring chip. I have checked that this machine
has no ACPI magic touching the SMBus nor the hardware monitoring chip,
so this should be safe.
Signed-off-by: NJean Delvare <khali@linux-fr.org>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>

Some quirks should be called with interrupt disabled, we can't directly
call them in .resume_early. Also the patch introduces
pci_fixup_resume_early and pci_fixup_suspend, which matches current
device core callbacks (.suspend/.resume_early).

TBD: Somebody knows why we need quirk resume should double check if a
quirk should be called in resume or resume_early. I changed some per my
understanding, but can't make sure I fixed all.
Signed-off-by: NShaohua Li <shaohua.li@intel.com>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>

Everybody wants to pass it a function pointer, and in fact, that is what
you _must_ pass it for it to make sense (since it knows that ia64 and
ppc64 use descriptors for function pointers and fetches the actual
address from there).

So don't make the argument be a 'unsigned long' and force everybody to
add a cast.
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

This applies the NVidia MSI enabled flag for HT capable devices quirk
to ALi bridges as well.

As described in more detail in http://bugzilla.kernel.org/show_bug.cgi?id=10667
this is required for my board which is using an nForce 3 250Gb chipset with an
ALi M1695 northbridge.

It fixes a regression introduced in 2.6.24 that made the internal NIC of the
board unusable (MSI initialisation of the NIC but disabled MSI on the
northbridge devices.
Signed-off-by: NBjörn Krombholz <fox.box@gmail.com>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>

This follows up 53a9bf42. Some newer
CX700 BIOSes from our vendor have PCI Bus Parking disabled but PCI
Master read caching enabled. This creates problems such as system
freezing when both the network controller and the USB controller are
active and one of them is pretty busy (e.g. heavy network traffic).

This patch separates the checks and both the bus parking and the read
caching are disabled independently if either is enabled by the BIOS.
Signed-off-by: NTim Yamin <tim.yamin@zonbu.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

print_fn_descriptor_symbol() prints the address if we don't have a symbol,
so no need to print both.
Signed-off-by: NBjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This reverts commit 3c0a654e and
fixes kernel bug #10245:

	http://bugzilla.kernel.org/show_bug.cgi?id=10245

The HP Compaq nc6120 has the same PCI sub-device ID as the nx6110, and the
SMBus is used by ACPI for thermal management on the nc6120, so Linux should
not attach a native driver to it.  This means that this quirk is unsafe and
has to be removed.

I also added a comment to help developers realize that adding new IDs to this
SMBus unhiding quirk table should be done only with great care, and in
particular only after checking that ACPI is not making use of the SMBus.
Signed-off-by: NJean Delvare <khali@linux-fr.org>
Cc: Tomasz Koprowski <tomek@koprowski.org>
Acked-by: NGreg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Two recent patches added basically the same code to turn on
HT MSI mapping:

    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=6bae1d96c6d7dde078994f6cb98235fd46f8736b
    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=9dc625e72309e1c919ea3e7f51d0ffca96123787

There's no need to have both, so this patch removes one copy.
Signed-off-by: NBjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Convert quirk printks to dev_printk().
Signed-off-by: NBjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

According to HT spec, to get message interrupt from devices mapped to HT
interrupt message, the 'En' bit of MSI Mapping capability need to be set.
The patch do this setting in quirks code for the devices on HT-based nvidia
platform.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: NAndy Currid <acurrid@nvidia.com>
Signed-off-by: NPeer Chen <pchen@nvidia.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

PCI: modify SATA IDE mode quirk
When initialize and resume, SB600/700/800 need to set SATA mode
correctly.
Signed-off-by: NCrane Cai <crane.cai@amd.com>
Acked-by: NJeff Garzik <jeff@garzik.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

SB700 SATA MSI bug will be fixed in SB700 revision A21 at hardware
level, but the SB700 revision older than A21 will also be found in the
market.  This patch modify the original quirk commit
bc38b411 instead of withdrawing it.
The patch also removes quirk to 0x4395 because 0x4395 is SB800 device
ID.
Signed-off-by: NShane Huang <shane.huang@amd.com>
Signed-off-by: NTejun Heo <htejun@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>