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Benjamin Herrenschmidt e4ee69c8c1 [PATCH] ppc32: Bump PMU interrupt priority 
The Power Management Unit on PowerMacs is very sensitive to timeouts during
async message exchanges.  It uses rather crude protocol based on a shift
register with an interrupt and is almost continuously exchanging messages with
the host CPU on laptops.

This patch adds a routine to the open_pic driver to be able to select a PMU
driver so that it bumps it's interrupt priority to above the normal level.

This will allow PMU interrupts to occur while another interrupt is pending,
and thus reduce the risk of machine beeing abruptly shutdown by the PMU due to
a timeout in PMU communication caused by excessive interrupt latency.  The
problem is very rare, and usually just doesn't happen, but it is still useful
to make things even more robust.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27 15:11:42 -07:00
..
acorn [PATCH] I2C: Kill address ranges in non-sensors i2c chip drivers 2005-06-21 21:51:48 -07:00
acpi [PATCH] suspend/resume SMP support 2005-06-25 16:24:32 -07:00
atm [ATM]: [drivers] kill pointless NULL checks and casts before kfree() 2005-06-02 13:04:07 -07:00
base [PATCH] generate hotplug events for cpu online 2005-06-25 16:24:31 -07:00
block Merge 'upstream' branch of rsync://rsync.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6 2005-06-27 14:53:48 -07:00
bluetooth [PATCH] Convert users to tty_unregister_ldisc() 2005-06-23 09:45:36 -07:00
cdrom [PATCH] drivers/cdrom/cm206.c: cleanups 2005-06-25 16:25:07 -07:00
char Merge 'drm-3264' branch of rsync://rsync.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 2005-06-26 09:55:39 -07:00
cpufreq [PATCH] sysfs: (rest) if show/store is missing return -EIO 2005-06-20 15:15:03 -07:00
crypto Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dio [PATCH] Driver Core: drivers/base - drivers/i2c/chips/adm1026.c: update device attribute callbacks 2005-06-20 15:15:32 -07:00
eisa [PATCH] Driver Core: drivers/base - drivers/i2c/chips/adm1026.c: update device attribute callbacks 2005-06-20 15:15:32 -07:00
fc4 fc4/fc: fix warnings and errors related to recent SCSI EH updates 2005-06-19 21:47:56 -04:00
firmware [PATCH] kfree cleanups for drivers/firmware/ 2005-06-25 16:25:06 -07:00
i2c [PATCH] I2C-MPC: Remove OCP device model support 2005-06-25 16:24:27 -07:00
ide [PATCH] IDE CD reports current speed 2005-06-23 09:45:35 -07:00
ieee1394 [PATCH] Cleanup patch for process freezing 2005-06-25 17:10:13 -07:00
infiniband [PATCH] sysfs: (rest) if show/store is missing return -EIO 2005-06-20 15:15:03 -07:00
input Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/dtor/input.git manually 2005-06-27 14:47:31 -07:00
isdn [PATCH] drivers/isdn/hisax/: possible cleanups 2005-06-25 16:25:07 -07:00
macintosh [PATCH] ppc32: Bump PMU interrupt priority 2005-06-27 15:11:42 -07:00
mca [PATCH] unexport mca_find_device_by_slot 2005-06-25 16:24:56 -07:00
md [PATCH] Cleanup patch for process freezing 2005-06-25 17:10:13 -07:00
media [PATCH] fix silly config option. 2005-06-27 14:33:30 -07:00
message [PATCH] tpm: device attribute fixes 2005-06-24 00:05:29 -07:00
misc [PATCH] ibmasm driver: fix race in command refcount logic 2005-06-21 19:07:35 -07:00
mmc [PATCH] Driver Core: drivers/i2c/chips/w83781d.c - drivers/s390/block/dcssblk.c: update device attribute callbacks 2005-06-20 15:15:34 -07:00
mtd [PATCH] fix u32 vs. pm_message_t in drivers/mmc,mtd,scsi 2005-04-16 15:25:29 -07:00
net [PATCH] b44: check link state during open 2005-06-27 00:46:40 -04:00
nubus Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
oprofile [PATCH] oprofile: report anonymous region samples 2005-06-24 00:06:27 -07:00
parisc Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
parport [PATCH] parport: NetMos nm9855 fix 2005-06-23 09:45:27 -07:00
pci [PATCH] PCI: fix show_modalias() function due to attribute change 2005-06-20 15:28:51 -07:00
pcmcia [PATCH] Cleanup patch for process freezing 2005-06-25 17:10:13 -07:00
pnp [PATCH] Cleanup patch for process freezing 2005-06-25 17:10:13 -07:00
s390 [PATCH] s390: debug feature changes 2005-06-25 16:24:37 -07:00
sbus [SPARC]: Eliminate local MIN/MAX macros in drivers/sbus/char/aurora.c 2005-05-15 16:01:50 -07:00
scsi [PATCH] libata fix read capacity handling for more than 2TB 2005-06-27 00:47:48 -04:00
serial [PATCH] Serial: Split 8250 port table 2005-06-27 11:12:54 +01:00
sh [PATCH] Driver Core: drivers/s390/net/qeth_sys.c - drivers/usb/gadget/pxa2xx_udc.c: update device attribute callbacks 2005-06-20 15:15:35 -07:00
sn [PATCH] ioc4: PCI bus speed detection 2005-06-21 18:46:32 -07:00
tc Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
telephony [PATCH] kfree cleanups in ixj.c 2005-06-25 16:25:06 -07:00
usb Merge 'upstream' branch of rsync://rsync.kernel.org/pub/scm/linux/kernel/git/jgarzik/netdev-2.6 2005-06-27 14:55:50 -07:00
video [PATCH] drivers/video/matrox/matroxfb_misc.c: remove dead code 2005-06-25 16:25:04 -07:00
w1 [PATCH] Cleanup patch for process freezing 2005-06-25 17:10:13 -07:00
zorro [PATCH] Driver Core: drivers/usb/input/aiptek.c - drivers/zorro/zorro-sysfs.c: update device attribute callbacks 2005-06-20 15:15:35 -07:00
Kconfig [PATCH] ioc4: CONFIG split 2005-06-21 18:46:32 -07:00
Makefile [PATCH] ioc4: CONFIG split 2005-06-21 18:46:32 -07:00