kernel/linux
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ synced 2026-09-24 18:16:04 +00:00
Code Issues Releases Packages Activity
linux/drivers
History
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>
History 2009-01-07 11:13:28 -08:00
..
accessibility braille_console: only register notifiers when the braille console is used 2008-10-02 15:53:13 -07:00
acpi ACPI/PCI: PCI MSI _OSC support capabilities called when root bridge added 2009-01-07 11:12:31 -08:00
amba Driver core: change add_uevent_var to use a struct 2007-10-12 14:51:01 -07:00
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 auxdisplay: small cleanups 2008-07-24 10:47:41 -07:00
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 Bluetooth: Enable per-module dynamic debug messages 2008-11-30 12:17:28 +01:00
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 CRED: Use RCU to access another task's creds and to release a task's own creds 2008-11-14 10:39:19 +11:00
cpufreq [CPUFREQ] Fix on resume, now preserves user policy min/max. 2008-12-05 15:20:11 -05:00
cpuidle regression: disable timer peek-ahead for 2.6.28 2008-11-09 16:28:42 -08:00
crypto crypto: talitos - Ack done interrupt in isr instead of tasklet 2008-12-25 11:02:33 +11:00
dca [4/4] dca: fixup initialization dependency 2008-11-10 15:01:03 -08:00
dio dio: use dio_match_device() in dio_bus_match() 2008-07-20 17:24:40 -07:00
dma async_xor: dma_map destination DMA_BIDIRECTIONAL 2008-12-08 13:46:00 -07:00
edac edac: driver for i5400 MCH (update) 2009-01-06 15:59:30 -08:00
eisa driver core: remove DEVICE_NAME_SIZE define 2008-07-21 21:54:53 -07:00
firewire firewire: fw-ohci: fix IOMMU resource exhaustion 2008-12-10 12:45:34 +01:00
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 ieee1394: add quirk fix for Freecom HDD 2008-12-14 01:13:13 +01:00
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 remove unused #include <version.h>'s 2008-11-01 09:50:12 -07:00
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 driver core: remove DEVICE_NAME_SIZE define 2008-07-21 21:54:53 -07:00
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 nubus: fix mis-indented statement 2008-10-16 11:21:30 -07:00
of of/gpio: Implement of_gpio_count() 2008-12-21 14:21:14 +11:00
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 Merge branch 'mxc-pu-imxfb' of git://pasiphae.extern.pengutronix.de/git/imx/linux-2.6 into devel 2008-12-17 20:04:45 +00:00
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 powerpc/ps3: Replace the flip_ctl logic in ps3av and ps3fb by a mutex 2008-11-19 16:03:54 +11:00
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 Revert "of_platform_driver noise on sparce" 2008-12-01 07:55:14 -08:00
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 sh: maple: Do not pass SLAB_POISON to kmem_cache_create() 2008-12-16 16:40:32 +09:00
sn ioc3.c: replace remaining __FUNCTION__ occurrences 2008-03-17 08:11:48 -04:00
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 ssb: struct device - replace bus_id with dev_name(), dev_set_name() 2008-11-21 11:06:03 -05:00
staging Staging: android: binder: fix build errors 2009-01-06 13:52:46 -08:00
tc lk201: remove obsolete driver 2007-10-17 08:42:57 -07:00
telephony telephony: trivial: fix up email address 2008-11-11 09:30:23 -08:00
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 move memory_read_from_buffer() from fs.h to string.h 2008-07-24 10:47:13 -07:00
Kconfig regulator: Build on non-ARM platforms 2008-10-28 21:47:17 +00:00
Makefile Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/dvrabel/uwb 2008-10-26 16:35:46 -07:00