kernel-hacking-2024-linux-s.../drivers
Stefan Assmann e1d3a90846 pci, acpi: reroute PCI interrupt to legacy boot interrupt equivalent
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: Stefan Assmann <sassmann@suse.de>
Signed-off-by: Olaf Dabrunz <od@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 17:50:53 +02:00
..
accessibility
acorn/char
acpi pci, acpi: reroute PCI interrupt to legacy boot interrupt equivalent 2008-07-08 17:50:53 +02:00
amba
ata ahci: give another shot at clearing all bits in irq_stat 2008-07-05 13:05:37 -07:00
atm
auxdisplay Miguel Ojeda has moved 2008-07-04 10:40:05 -07:00
base Merge branch 'x86/numa' into x86/devel 2008-07-08 11:59:23 +02:00
block cciss: read config to obtain max outstanding commands per controller 2008-07-04 10:40:09 -07:00
bluetooth
cdrom
char Merge branches 'x86/numa-fixes', 'x86/apic', 'x86/apm', 'x86/bitops', 'x86/build', 'x86/cleanups', 'x86/cpa', 'x86/cpu', 'x86/defconfig', 'x86/gart', 'x86/i8259', 'x86/intel', 'x86/irqstats', 'x86/kconfig', 'x86/ldt', 'x86/mce', 'x86/memtest', 'x86/pat', 'x86/ptemask', 'x86/resumetrace', 'x86/threadinfo', 'x86/timers', 'x86/vdso' and 'x86/xen' into x86/devel 2008-07-08 09:16:56 +02:00
clocksource
connector CONNECTOR: add a proc entry to list connectors 2008-06-27 20:03:24 -07:00
cpufreq
cpuidle
crypto
dca
dio
dma
edac
eisa
firewire firewire: fw-sbp2: fix parsing of logical unit directories 2008-06-27 20:55:00 +02:00
firmware Merge branch 'linus' into tmp.x86.mpparse.new 2008-07-08 10:32:56 +02:00
gpio gpio: pca953x (i2c) handles max7310 too 2008-07-04 10:40:06 -07:00
hid
hwmon hdaps: add support for various newer Lenovo thinkpads 2008-07-04 10:40:06 -07:00
i2c I2C: S3C2410: Add MODULE_ALIAS() for s3c2440 device. 2008-07-01 14:30:38 +01:00
ide ide: ide_unregister() locking bugfix 2008-07-05 20:30:51 +02:00
ieee1394 ieee1394: Kconfig menu touch-up 2008-06-19 00:12:36 +02:00
infiniband IB/mthca: Clear ICM pages before handing to FW 2008-06-23 09:29:58 -07:00
input Merge branches 'x86/numa-fixes', 'x86/apic', 'x86/apm', 'x86/bitops', 'x86/build', 'x86/cleanups', 'x86/cpa', 'x86/cpu', 'x86/defconfig', 'x86/gart', 'x86/i8259', 'x86/intel', 'x86/irqstats', 'x86/kconfig', 'x86/ldt', 'x86/mce', 'x86/memtest', 'x86/pat', 'x86/ptemask', 'x86/resumetrace', 'x86/threadinfo', 'x86/timers', 'x86/vdso' and 'x86/xen' into x86/devel 2008-07-08 09:16:56 +02:00
isdn
leds
lguest Merge commit 'v2.6.26-rc8' into x86/xen 2008-06-25 12:16:51 +02:00
macintosh
mca
md Merge git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm 2008-07-02 18:55:17 -07:00
media V4L/DVB (8178): uvc: Fix compilation breakage for the other drivers, if uvc is selected 2008-07-02 08:58:15 -03:00
memstick
message
mfd
misc
mmc pxamci: fix byte aligned DMA transfers 2008-07-06 10:37:40 -07:00
mtd
net hostap: fix sparse warnings 2008-06-30 15:43:52 -04:00
nubus
of
oprofile
parisc
parport
pci pci, acpi: reroute PCI interrupt to legacy boot interrupt equivalent 2008-07-08 17:50:53 +02:00
pcmcia
pnp
power
ps3
rapidio
rtc rtc-x1205: Fix alarm set 2008-07-04 10:40:05 -07:00
s390
sbus
scsi [SCSI] esp: tidy up target reference counting 2008-06-25 12:36:13 -05:00
serial serial: fix serial_match_port() for dynamic major tty-device numbers 2008-07-04 10:40:04 -07:00
sh
sn
spi spi: fix the read path in spidev 2008-07-04 10:40:08 -07:00
ssb
tc
telephony
thermal thermal: Create CONFIG_THERMAL_HWMON=n 2008-06-25 19:25:42 -04:00
uio
usb Revert "USB: don't explicitly reenable root-hub status interrupts" 2008-07-06 10:27:25 -07:00
video Merge branches 'x86/numa-fixes', 'x86/apic', 'x86/apm', 'x86/bitops', 'x86/build', 'x86/cleanups', 'x86/cpa', 'x86/cpu', 'x86/defconfig', 'x86/gart', 'x86/i8259', 'x86/intel', 'x86/irqstats', 'x86/kconfig', 'x86/ldt', 'x86/mce', 'x86/memtest', 'x86/pat', 'x86/ptemask', 'x86/resumetrace', 'x86/threadinfo', 'x86/timers', 'x86/vdso' and 'x86/xen' into x86/devel 2008-07-08 09:16:56 +02:00
virtio
w1
watchdog Revert "[WATCHDOG] hpwdt: Add CFLAGS to get driver working" 2008-06-24 13:09:26 +00:00
xen xen: Use wmb instead of rmb in xen_evtchn_do_upcall(). 2008-06-20 14:56:30 +02:00
zorro
Kconfig
Makefile