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a5ee4eb754
linux/drivers
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Clemens Ladisch a5ee4eb754 PCI quirk: RS780/RS880: work around missing MSI initialization 
AMD says in section 2.5.4 (GFX MSI Enable) of #43291 (AMD 780G Family
Register Programming Requirements):

  The SBIOS must enable internal graphics MSI capability in GCCFG by
  setting the following: NBCFG.NB_CNTL.STRAP_MSI_ENABLE='1'

Quite a few BIOS writers misinterpret this sentence and think that
enabling MSI is an optional feature.  However, clearing that bit just
prevents delivery of MSI messages but does not remove the MSI PCI
capabilities registers, and so leaves these devices unusable for any
driver that attempts to use MSI.

Setting that bit is not possible after the BIOS has locked down the
configuration registers, so we have to manually disable MSI for the
affected devices.

This fixes the codec communication errors in the HDA driver when
accessing the HDMI audio device, and allows us to get rid of the
overcautious quirk in radeon_irq_kms.c.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Tested-by: Alex Deucher <alexdeucher@gamil.com>
Cc: <stable@kernel.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-03-24 13:21:38 -07:00
..
accessibility
acpi backlight: Allow properties to be passed at registration 2010-03-16 19:47:54 +00:00
amba
ata ahci: pp->active_link is not reliable when FBS is enabled 2010-03-17 15:54:55 -04:00
atm atm: use for_each_set_bit() 2010-03-15 16:00:47 -07:00
auxdisplay auxdisplay: move cfag12864bfb's probe function to .devinit.text 2010-03-07 17:04:50 -08:00
base memory hotplug: allow setting of phys_device 2010-03-17 18:43:47 -07:00
block Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-03-12 16:04:50 -08:00
bluetooth
cdrom
char hpet: use for_each_set_bit() 2010-03-17 18:43:47 -07:00
clocksource MFGPT: move clocksource menu 2010-03-06 11:26:28 -08:00
connector
cpufreq Driver core: Constify struct sysfs_ops in struct kobj_type 2010-03-07 17:04:49 -08:00
cpuidle Driver core: Constify struct sysfs_ops in struct kobj_type 2010-03-07 17:04:49 -08:00
crypto Merge branch 'for-next' into for-linus 2010-03-08 16:55:37 +01:00
dca
dio
dma Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-03-12 16:04:50 -08:00
edac edac: e752x: add dram scrubbing support 2010-03-12 15:52:40 -08:00
eisa eisa: fix coding style for eisa bus code 2010-03-06 11:26:32 -08:00
firewire Driver core: create lock/unlock functions for struct device 2010-03-07 17:04:52 -08:00
firmware Driver core: Constify struct sysfs_ops in struct kobj_type 2010-03-07 17:04:49 -08:00
gpio driver-core: Add attribute argument to class_attribute show/store 2010-03-07 17:04:48 -08:00
gpu PCI quirk: RS780/RS880: work around missing MSI initialization 2010-03-24 13:21:38 -07:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2010-03-18 16:52:31 -07:00
hwmon Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging 2010-03-06 11:33:09 -08:00
i2c Add include to i2c-xii.c to fix build error 2010-03-14 11:14:58 -07:00
ide Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-next-2.6 2010-03-04 08:24:06 -08:00
idle
ieee1394 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-03-12 16:04:50 -08:00
ieee802154
infiniband Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2010-03-18 16:54:31 -07:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2010-03-14 11:13:54 -07:00
isdn gigaset: fix build failure 2010-03-17 14:22:07 -07:00
leds leds: Fix race between LED device uevent and actual attributes creation 2010-03-16 20:27:25 +00:00
lguest
macintosh backlight: Allow properties to be passed at registration 2010-03-16 19:47:54 +00:00
mca
md Merge branch 'for-linus' of git://neil.brown.name/md 2010-03-18 16:55:24 -07:00
media Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2010-03-14 11:13:54 -07:00
memstick
message Merge branch 'for-next' into for-linus 2010-03-08 16:55:37 +01:00
mfd Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6 2010-03-12 16:41:09 -08:00
misc init dynamic bin_attribute structures 2010-03-14 20:28:39 -07:00
mmc Merge branch 'msm-mmc_sdcc' of git://codeaurora.org/quic/kernel/dwalker/linux-msm 2010-03-12 16:21:24 -08:00
mtd mtd: enable sh_flctl on SH-Mobile ARM 2010-03-15 11:13:15 +09:00
net l2tp: Fix UDP socket reference count bugs in the pppol2tp driver 2010-03-16 14:15:44 -07:00
nubus
of
oprofile
parisc Driver core: Constify struct sysfs_ops in struct kobj_type 2010-03-07 17:04:49 -08:00
parport Merge branch 'for-next' into for-linus 2010-03-08 16:55:37 +01:00
pci PCI quirk: RS780/RS880: work around missing MSI initialization 2010-03-24 13:21:38 -07:00
pcmcia PCI: print resources consistently with %pR 2010-03-24 13:21:36 -07:00
platform backlight: panasonic-laptop - Fix incomplete registration failure handling 2010-03-16 20:13:31 +00:00
pnp PNPACPI: add bus number support 2010-03-14 20:08:38 -04:00
power Merge branches 'battery-2.6.34', 'bugzilla-10805', 'bugzilla-14668', 'bugzilla-531916-power-state', 'ht-warn-2.6.34', 'pnp', 'processor-rename', 'sony-2.6.34', 'suse-bugzilla-531547', 'tz-check', 'video' and 'misc-2.6.34' into release 2010-03-14 21:30:17 -04:00
pps pps: serial clients support 2010-03-12 15:52:43 -08:00
ps3
rapidio
regulator regulator: Add max8925 support 2010-03-07 22:17:08 +01:00
rtc init dynamic bin_attribute structures 2010-03-14 20:28:39 -07:00
s390 memory hotplug/s390: set phys_device 2010-03-17 18:43:47 -07:00
sbus
scsi Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2010-03-18 16:54:31 -07:00
serial Merge branch 'merge' of git://git.secretlab.ca/git/linux-2.6 2010-03-18 17:01:19 -07:00
sfi
sh Merge branch 'origin' into devel-stable 2010-03-08 20:21:04 +00:00
sn
spi Merge branch 'merge' of git://git.secretlab.ca/git/linux-2.6 2010-03-18 17:01:19 -07:00
ssb
staging backlight: Allow properties to be passed at registration 2010-03-16 19:47:54 +00:00
tc
telephony
thermal
uio UIO: Remove SMX Cryptengine driver 2010-03-07 17:04:51 -08:00
usb backlight: Allow properties to be passed at registration 2010-03-16 19:47:54 +00:00
uwb Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-03-12 16:04:50 -08:00
vhost
video Merge master.kernel.org:/home/rmk/linux-2.6-arm 2010-03-18 16:59:10 -07:00
virtio
vlynq
w1 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-03-12 16:04:50 -08:00
watchdog [WATCHDOG] i6300esb.c: change platform_driver to pci_driver 2010-03-08 13:48:01 +00:00
xen Driver core: Constify struct sysfs_ops in struct kobj_type 2010-03-07 17:04:49 -08:00
zorro
Kconfig MFGPT: move clocksource menu 2010-03-06 11:26:28 -08:00
Makefile Merge branch 'origin' into devel-stable 2010-03-08 20:21:04 +00:00