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Andrew Patterson 987a4c783a PCI: Use msleep instead of cpu_relax during ASPM link retraining 
The cpu_relax() function can be a noop on certain architectures like
IA-64 when CPU threads are disabled, so use msleep instead during link
retraining busy/wait loop.

Introduce define LINK_RETRAIN_TIMEOUT instead of hard-coding timeout in
pcie_aspm_configure_common_clock.

Use time_after() to avoid jiffy wraparound when checking for expired
timeout.

After timeout expires, recheck link status register link training bit
instead of checking for expired timeout to avoid possible false
positive.

Note that Matthew Wilcox came up with the first rough version of this
patch.

Reviewed-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Andrew Patterson <andrew.patterson@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
 		2009-01-07 11:13:28 -08:00
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accessibility
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acpi ACPI/PCI: PCI MSI _OSC support capabilities called when root bridge added 2009-01-07 11:12:31 -08:00
amba
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ata libata: struct device - replace bus_id with dev_name(), dev_set_name() 2009-01-06 10:44:43 -08:00
atm atm: Driver for Solos PCI ADSL2+ card. 2008-12-26 01:26:11 -08:00
auxdisplay
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base Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6 2009-01-06 17:02:07 -08:00
block Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus 2008-12-30 17:37:25 -08:00
bluetooth
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cdrom cdrom: reduce stack usage of mmc_ioctl_dvd_read_struct 2008-12-29 08:28:43 +01:00
char Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6 2009-01-06 17:02:07 -08:00
clocksource Merge branch 'cpus4096-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-01-02 11:44:09 -08:00
connector
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cpufreq
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cpuidle
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crypto crypto: talitos - Ack done interrupt in isr instead of tasklet 2008-12-25 11:02:33 +11:00
dca
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dio
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dma
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edac edac: driver for i5400 MCH (update) 2009-01-06 15:59:30 -08:00
eisa
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firewire
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firmware Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6 2009-01-06 17:02:07 -08:00
gpio Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6 2009-01-06 17:02:07 -08:00
gpu drm: fix ordering of driver unload vs agp unload. 2009-01-07 11:54:57 +10:00
hid Merge branch 'upstream-fixes' into for-next 2009-01-04 01:04:09 +01:00
hwmon Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6 2009-01-06 17:02:07 -08:00
i2c Merge branch 'for-next' of git://git.o-hand.com/linux-mfd 2009-01-05 19:04:09 -08:00
ide scc_pata: make use of scc_dma_sff_read_status() 2009-01-06 17:21:02 +01:00
idle i7300_idle: struct device - replace bus_id with dev_name(), dev_set_name() 2009-01-06 10:44:39 -08:00
ieee1394
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infiniband infiniband: struct device - replace bus_id with dev_name(), dev_set_name() 2009-01-06 10:44:39 -08:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2009-01-06 17:14:01 -08:00
isdn ISDN: struct device - replace bus_id with dev_name(), dev_set_name() 2009-01-06 10:44:39 -08:00
leds
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lguest lguest: do not statically allocate root device 2009-01-06 10:44:34 -08:00
macintosh Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6 2009-01-06 17:02:07 -08:00
mca
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md dm snapshot: extend exception store functions 2009-01-06 03:05:19 +00:00
media poll: allow f_op->poll to sleep 2009-01-06 15:59:12 -08:00
memstick memstick: struct device - replace bus_id with dev_name(), dev_set_name() 2009-01-06 10:44:38 -08:00
message Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6 2009-01-06 17:02:07 -08:00
mfd mfd: Fix section mismatch in da903x 2009-01-04 15:31:49 +01:00
misc Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6 2009-01-06 17:02:07 -08:00
mmc Merge branch 'master' of ../mmc 2008-12-31 19:56:05 +01:00
mtd mtd: struct device - replace bus_id with dev_name(), dev_set_name() 2009-01-06 10:44:38 -08:00
net net: sfc: Use pci_clear_master() to disable bus mastering 2009-01-07 11:13:24 -08:00
nubus
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of
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oprofile zero i_uid/i_gid on inode allocation 2009-01-05 11:54:28 -05:00
parisc PCI: parisc: use generic pci_swizzle_interrupt_pin() 2009-01-07 11:12:55 -08:00
parport parport: ieee1284: use del_timer_sync() in parport_wait_event() 2009-01-06 15:59:31 -08:00
pci PCI: Use msleep instead of cpu_relax during ASPM link retraining 2009-01-07 11:13:28 -08:00
pcmcia
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pnp pnp: struct device - replace bus_id with dev_name(), dev_set_name() 2009-01-06 10:44:38 -08:00
power power-supply: struct device - replace bus_id with dev_name(), dev_set_name() 2009-01-06 10:44:38 -08:00
ps3
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rapidio rapidio: remove excess kernel-doc notation 2009-01-06 15:59:28 -08:00
regulator mfd: Support configurable numbers of DCDCs and ISINKs on WM8350 2009-01-04 12:17:42 +01:00
rtc drivers/rtc: correct an error test 2009-01-06 15:59:25 -08:00
s390 s390: remove s390_root_dev_*() 2009-01-06 10:44:34 -08:00
sbus
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scsi remove ide-scsi 2009-01-02 16:12:51 +01:00
serial serial: struct device - replace bus_id with dev_name(), dev_set_name() 2009-01-06 10:44:37 -08:00
sh
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sn
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spi Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6 2009-01-06 17:02:07 -08:00
ssb
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staging Staging: android: binder: fix build errors 2009-01-06 13:52:46 -08:00
tc
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telephony
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thermal thermal: struct device - replace bus_id with dev_name(), dev_set_name() 2009-01-06 10:44:37 -08:00
uio UIO: Pass information about ioports to userspace (V2) 2009-01-06 10:44:44 -08:00
usb gadget: struct device - replace bus_id with dev_name(), dev_set_name() 2009-01-06 10:44:42 -08:00
uwb Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-upstream 2009-01-02 13:17:13 +00:00
video Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6 2009-01-06 17:02:07 -08:00
virtio virtio: do not statically allocate root device 2009-01-06 10:44:34 -08:00
w1 w1: struct device - replace bus_id with dev_name(), dev_set_name() 2009-01-06 10:44:34 -08:00
watchdog [WATCHDOG] Add support for the WM8350 watchdog 2008-12-31 16:12:54 +00:00
xen xen: struct device - replace bus_id with dev_name(), dev_set_name() 2009-01-06 10:44:34 -08:00
zorro
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Kconfig
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Makefile
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