linux-toradex.git/drivers/ata/ahci.c, branch tegra-10.9.9

ahci: add Acer G725 to broken suspend list

2010-02-23T15:37:56+00:00

commit cedc9bf906dae044443d403371c887affdb44168 upstream.

Acer G725 shares the same suspend problem with the HP laptops which
lose ATA devices on resume.  New firmware which fixes the problem is
already available.  Add G725 with old firmwares to the broken suspend
list.

This problem has been reported in bko#15104.

  http://bugzilla.kernel.org/show_bug.cgi?id=15104

Signed-off-by: Tejun Heo 
Reported-by: Jani-Matti Hätinen 
Signed-off-by: Jeff Garzik 
Signed-off-by: Greg Kroah-Hartman

ahci: disable SNotification capability for ich8

2010-01-28T23:02:15+00:00

commit 1b677afda44f7882b7e257d6f025d006ec5d14f9 upstream.

I obseved there is a sata_async_notification() for every ahci
interrupt. But the async notification does nothing (this is hard
disk drive and no pmp). This cause cpu wastes some time on sntf
register access.

It appears ICH AHCI doesn't support SNotification register, but the
controller reports it does. After quirking it, the async notification
disappears.

PS. it appears all ICH don't support SNotification register from ICH
manual, don't know if we need quirk all ICH. I don't have machines
with all kinds of ICH.

Signed-off-by: Shaohua Li 
Signed-off-by: Jeff Garzik 
Signed-off-by: Greg Kroah-Hartman

ahci: Enable SB600 64bit DMA on MSI K9A2 Platinum v2

2009-11-03T19:25:57+00:00

Like the Asus M2A-VM, MSI's K9A2 Platinum (MS-7376) can also support 64bit
DMA. It is a new enough board that all the BIOS releases work correctly with
64bit DMA enabled.

Signed-off-by: Mark Nelson 
Signed-off-by: Jeff Garzik

ahci / atiixp / pci quirks: rename AMD SB900 into Hudson-2

2009-10-16T10:21:20+00:00

This patch renames the code name SB900 into Hudson-2

Signed-off-by: Shane Huang 
Signed-off-by: Jeff Garzik

ahci: Add the AHCI controller Linux Device ID for NVIDIA chipsets.

2009-10-16T10:20:00+00:00

Add the generic device ID for NVIDIA AHCI controller.

Signed-off-by: Peer Chen 
Signed-off-by: Jeff Garzik

ahci: Add ifdef wrapper to ahci_gtf_filter_workaround

2009-10-09T04:29:07+00:00

Commit f80ae7e45a0e03da188494c6e947a5c8b0cdfb4a
ahci: filter FPDMA non-zero offset enable for Aspire 3810T
breaks the current git build for configurations that don't define
CONFIG_ATA_ACPI.
This adds an ifdef wrapper to ahci_gtf_filter_workaround.

Signed-off-by: Markus Trippelsdorf 
Acked-by: Tejun Heo 
Signed-off-by: Jeff Garzik

ahci: filter FPDMA non-zero offset enable for Aspire 3810T

2009-10-06T04:26:29+00:00

Curiously, Aspire 3810T issues many SATA feature enable commands via
_GTF, of which one is invalid and another is not supported by the
drive.  In the process, it also enables FPDMA non-zero offset.
However, the feature also needs to be supported and enabled from the
controller and it's wrong to enable it from _GTF unless the controller
can do it by default.

Currently, this ends up enabling FPDMA non-zero offset only on the
drive side leading to NCQ command failures and eventual disabling of
NCQ.  This patch makes libata filter out FPDMA non-zero offset enable
for the machine.

This was reported by Marcus Meissner in bnc#522790.

  https://bugzilla.novell.com/show_bug.cgi?id=522790

Reported-by: Marcus Meissner 

Signed-off-by: Jeff Garzik

ahci: display all AHCI 1.3 HBA capability flags (v2)

2009-10-06T04:23:03+00:00

Update the AHCI driver to display all of the HBA capabilities defined in the
AHCI 1.3 specification. Some of these are in a new CAP2 (HBA Capabilities
Extended) register which is only defined on AHCI 1.2 or later. The spec says
that undefined registers should always return 0 on read, but to be safe we
assume a value of 0 unless the controller reports AHCI version 1.2 or later.
The value can also be retrieved through sysfs as with the existing capability
field.

For example, on an Intel Ibex Peak (PCH) controller:

ahci 0000:00:1f.2: flags: 64bit ncq sntf stag pm led clo pmp pio slum part ems
sxs apst

We don't do anything special with the new flags yet.

Also, change the code that displays the flags to use the same bit enumerations
that are used to control actual operation.

Signed-off-by: Robert Hancock 
Signed-off-by: Jeff Garzik

ahci: disable 64bit DMA by default on SB600s

2009-10-06T04:21:42+00:00

Till now only one board, ASUS M2A-VM, can do 64bit dma with recent
BIOSen.  Enabling 64bit DMA by default already broke three boards.
Enabling 64bit DMA isn't worth these regressions.  Disable 64bit DMA
by default and enable it only on boards which are known to work.

Signed-off-by: Tejun Heo 
Reported-by: Gabriele Balducci 
Reported-by: maierp@informatik.tu-muenchen.de
Cc: Shane Huang 
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik

ahci: restore pci_intx() handling

2009-09-17T20:45:38+00:00

Commit a5bfc4714b3f01365aef89a92673f2ceb1ccf246 dropped explicit
pci_intx() manipulation from ahci because it seemed unnecessary and
ahci doesn't seem to be the right place to be tweaking it if it were.
This was largely okay but there are exceptions.  There was one on an
embedded platform which was fixed via firmware and now bko#14124
reports it on a HP DL320.

  http://bugzilla.kernel.org/show_bug.cgi?id=14124

I still think this isn't something libata drivers should be caring
about (the only ones which are calling pci_intx() explicitly are
libata ones and one other driver) but for now reverting the change
seems to be the right thing to do.

Signed-off-by: Tejun Heo 
Reported-by: Thomas Jarosch 
Signed-off-by: Jeff Garzik