linux-toradex.git/drivers/pci, branch v2.6.32.19

PCI: disable MSI on VIA K8M800

2010-08-13T20:19:34+00:00

commit 549e15611b4ac1de51ef0e0a79c2704f50a638a2 upstream.

MSI delivery from on-board ahci controller doesn't work on K8M800.  At
this point, it's unclear whether the culprit is with the ahci
controller or the host bridge.  Given the track record and considering
the rather minimal impact of MSI, disabling it seems reasonable.

Signed-off-by: Tejun Heo 
Reported-by: Rainer Hurtado Navarro 
Signed-off-by: Jesse Barnes 
Signed-off-by: Greg Kroah-Hartman

PCI: Do not run NVidia quirks related to MSI with MSI disabled

2010-08-13T20:19:33+00:00

commit 3d2a531804d16cd8df6dbbb0429c6f143e756049 upstream.

There is no reason to run NVidia-specific quirks related to HT MSI
mappings with MSI disabled via pci=nomsi, so make
__nv_msi_ht_cap_quirk() return immediately in that case.

This allows at least one machine to boot 100% of the time with
pci=nomsi (it still doesn't boot reliably without that).

Addresses https://bugzilla.kernel.org/show_bug.cgi?id=16443 .

Signed-off-by: Rafael J. Wysocki 
Signed-off-by: Jesse Barnes 
Signed-off-by: Greg Kroah-Hartman

virtio-pci: disable msi at startup

2010-08-02T17:20:42+00:00

commit b03214d559471359e2a85ae256686381d0672f29 upstream.

virtio-pci resets the device at startup by writing to the status
register, but this does not clear the pci config space,
specifically msi enable status which affects register
layout.

This breaks things like kdump when they try to use e.g. virtio-blk.

Fix by forcing msi off at startup. Since pci.c already has
a routine to do this, we export and use it instead of duplicating code.

Signed-off-by: Michael S. Tsirkin 
Tested-by: Vivek Goyal 
Acked-by: Jesse Barnes 
Cc: linux-pci@vger.kernel.org
Signed-off-by: Rusty Russell 
Signed-off-by: Greg Kroah-Hartman

ahci: add pci quirk for JMB362

2010-07-05T18:11:03+00:00

commit 4daedcfe8c6851aa01cc1997220f2577f4039c13 upstream.

JMB362 is a new variant of jmicron controller which is similar to
JMB360 but has two SATA ports instead of one.  As there is no PATA
port, single function AHCI mode can be used as in JMB360.  Add pci
quirk for JMB362.

Signed-off-by: Tejun Heo 
Reported-by: Aries Lee 
Signed-off-by: Jeff Garzik 
Signed-off-by: Greg Kroah-Hartman

PCI: Disable MSI for MCP55 on P5N32-E SLI

2010-07-05T18:10:41+00:00

commit e4146bb9088c01c8b6e82be11f0c371f8aff023c upstream.

As reported in , MSI appears to be
broken for this on-board device.  We already have a quirk for the
P5N32-SLI Premium; extend it to cover both variants of the board.

Reported-by: Romain DEGEZ 
Signed-off-by: Ben Hutchings 
Signed-off-by: Jesse Barnes 
Signed-off-by: Greg Kroah-Hartman

PCI quirks: disable msi on AMD rs4xx internal gfx bridges

2010-07-05T18:10:40+00:00

commit 9313ff450400e6a2ab10fe6b9bdb12a828329410 upstream.

Doesn't work reliably for internal gfx.  Fixes kernel bug
https://bugzilla.kernel.org/show_bug.cgi?id=15626.

Signed-off-by: Alex Deucher 
Signed-off-by: Jesse Barnes 
Signed-off-by: Greg Kroah-Hartman

PCI quirk: Disable MSI on VIA K8T890 systems

2010-07-05T18:10:40+00:00

commit 134b345081534235dbf228b1005c14590e0570ba upstream.

Bugzilla 15287 indicates that there's a problem with Message Signalled
Interrupts on VIA K8T890 systems.  Add a quirk to disable MSI on these
systems.

Signed-off-by: Matthew Wilcox 
Tested-by: Jan Kreuzer 
Tested-by: lh 
Signed-off-by: Jesse Barnes 
Signed-off-by: Greg Kroah-Hartman

PCI: Ensure we re-enable devices on resume

2010-05-12T21:57:12+00:00

commit cc2893b6af5265baa1d68b17b136cffca9e40cfa upstream.

If the firmware puts a device back into D0 state at resume time, we'll
update its state in resume_noirq and thus skip the platform resume code.
Calling that code twice should be safe and we ought to avoid getting to
that point anyway, so remove the check and also allow the platform pci
code to be called for D0.

Fixes USB not being powered after resume on recent Lenovo machines.

Acked-by: Alex Chiang 
Acked-by: Rafael J. Wysocki 
Signed-off-by: Matthew Garrett 
Signed-off-by: Jesse Barnes 
Signed-off-by: Greg Kroah-Hartman

PCI: fix nested spinlock hang in aer_inject

2010-04-26T14:41:31+00:00

commit bd1f46deba615971a58193afd0202878cadf19a7 upstream.

The aer_inject module hangs in aer_inject() when checking the device's
error masks.  The hang is due to a recursive use of the aer_inject lock.
The aer_inject() routine grabs the lock while processing the error and then
calls pci_read_config_dword to read the masks. The pci_read_config_dword
routine is earlier overridden by pci_read_aer, which among other things,
grabs the aer_inject lock.

Fixed by moving the pci_read_config_dword calls to read the masks to before
the lock is taken.

Acked-by: Huang Ying 
Signed-off-by: Andrew Patterson 
Signed-off-by: Jesse Barnes 
Cc: maximilian attems 
Signed-off-by: Greg Kroah-Hartman

PCI: kill off pci_register_set_vga_state() symbol export.

2010-04-26T14:41:31+00:00

commit ded1d8f29b4d315a2093cafc3ee17ac870a87972 upstream.

When pci_register_set_vga_state() was made __init, the EXPORT_SYMBOL() was
retained, which now leaves us with a section mismatch.

Signed-off-by: Paul Mundt 
Cc: Mike Travis 
Signed-off-by: Andrew Morton 
Signed-off-by: Jesse Barnes 
Cc: maximilian attems 
Signed-off-by: Greg Kroah-Hartman