kernel-hacking-2024-linux-s.../drivers/watchdog
Nick Bowler 081d83a339 watchdog: sp805: Flush posted writes in enable/disable.
There are no reads in these functions, so if MMIO writes are posted,
the writes in enable/disable may not have completed by the time these
functions return.  If the functions run from different CPUs, it's
in theory possible for the writes to be interleaved, which would be
disastrous for this driver.

At the very least, we need an mmiowb() before releasing the lock, but
since it seems desirable for the watchdog timer to be actually stopped
or reset when these functions return, read the lock register to force
the writes out.

Signed-off-by: Nick Bowler <nbowler@elliptictech.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-07-26 21:19:56 +00:00
..
acquirewdt.c Fix common misspellings 2011-03-31 11:26:23 -03:00
advantechwdt.c
adx_wdt.c
alim1535_wdt.c watchdog: cleanup spaces before tabs 2011-03-15 16:02:27 +00:00
alim7101_wdt.c watchdog: convert to DEFINE_PCI_DEVICE_TABLE 2011-03-15 16:02:22 +00:00
ar7_wdt.c
at32ap700x_wdt.c watchdog: update author email for at32ap700x_wdt 2011-06-28 20:01:25 +00:00
at91rm9200_wdt.c
at91sam9_wdt.c
ath79_wdt.c
bcm47xx_wdt.c watchdog: cleanup spaces before tabs 2011-03-15 16:02:27 +00:00
bcm63xx_wdt.c treewide: Fix iomap resource size miscalculations 2011-04-10 17:01:04 +02:00
bfin_wdt.c watchdog: cleanup spaces before tabs 2011-03-15 16:02:27 +00:00
booke_wdt.c watchdog: booke_wdt: clean up status messages 2011-03-15 16:02:39 +00:00
coh901327_wdt.c
cpu5wdt.c
cpwd.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog 2011-03-17 17:09:29 -07:00
davinci_wdt.c watchdog: Convert release_resource to release_region/release_mem_region 2011-03-29 11:05:48 +00:00
dw_wdt.c watchdog: add support for the Synopsys DesignWare WDT 2011-07-22 08:57:38 +00:00
ep93xx_wdt.c
eurotechwdt.c watchdog: cleanup spaces before tabs 2011-03-15 16:02:27 +00:00
f71808e_wdt.c
gef_wdt.c watchdog: gef_wdt: fix MODULE_ALIAS 2011-06-28 07:43:00 +00:00
geodewdt.c
hpwdt.c watchdog: convert to DEFINE_PCI_DEVICE_TABLE 2011-03-15 16:02:22 +00:00
i6300esb.c watchdog: convert to DEFINE_PCI_DEVICE_TABLE 2011-03-15 16:02:22 +00:00
ib700wdt.c
ibmasr.c
imx2_wdt.c watchdog: imx2_wdt: add device tree probe support 2011-07-26 21:19:16 +00:00
indydog.c
intel_scu_watchdog.c watchdog: Intel SCU Watchdog: Fix build and remove duplicate code 2011-06-28 07:42:50 +00:00
intel_scu_watchdog.h watchdog: Intel SCU Watchdog Timer Driver for Moorestown and Medfield platforms. 2011-03-15 16:02:06 +00:00
iop_wdt.c
it87_wdt.c watchdog: Use "request_muxed_region" in it87 watchdog drivers 2011-07-22 08:55:23 +00:00
it8712f_wdt.c watchdog: Use "request_muxed_region" in it87 watchdog drivers 2011-07-22 08:55:23 +00:00
iTCO_vendor.h
iTCO_vendor_support.c
iTCO_wdt.c watchdog: iTCO_wdt: clean-up PCI device ID's 2011-07-22 08:56:11 +00:00
ixp4xx_wdt.c
ixp2000_wdt.c
jz4740_wdt.c watchdog: jz4740_wdt - fix magic character checking 2011-03-15 16:01:57 +00:00
Kconfig watchdog: i.MX: use IMX_HAVE_PLATFORM_IMX2_WDT to depend on 2011-07-22 08:58:38 +00:00
ks8695_wdt.c
lantiq_wdt.c MIPS: Lantiq: Add watchdog support 2011-05-19 09:55:43 +01:00
m54xx_wdt.c
machzwd.c watchdog: cleanup spaces before tabs 2011-03-15 16:02:27 +00:00
Makefile watchdog: add support for the Synopsys DesignWare WDT 2011-07-22 08:57:38 +00:00
max63xx_wdt.c watchdog: Convert release_resource to release_region/release_mem_region 2011-03-29 11:05:48 +00:00
mixcomwd.c
mpc8xxx_wdt.c drivercore: revert addition of of_match to struct device 2011-05-18 12:32:23 -06:00
mpcore_wdt.c watchdog: mpcore_wdt: Add suspend/resume support. 2011-07-22 09:00:20 +00:00
mtx-1_wdt.c watchdog: mtx1-wdt: use dev_{err,info} instead of printk() 2011-07-22 08:59:43 +00:00
mv64x60_wdt.c
nuc900_wdt.c
nv_tco.c watchdog: fix nv_tco section mismatch 2011-03-29 11:06:04 +00:00
nv_tco.h
octeon-wdt-main.c
octeon-wdt-nmi.S
omap_wdt.c Watchdog: omap_wdt: add fine grain runtime-pm 2011-03-10 22:40:05 -07:00
omap_wdt.h watchdog: cleanup spaces before tabs 2011-03-15 16:02:27 +00:00
orion_wdt.c
pc87413_wdt.c watchdog: pc87413_wdt: Cleanup pc87413 watchdog driver to use 2011-07-22 08:56:41 +00:00
pcwd.c
pcwd_pci.c watchdog: convert to DEFINE_PCI_DEVICE_TABLE 2011-03-15 16:02:22 +00:00
pcwd_usb.c
pika_wdt.c
pnx833x_wdt.c
pnx4008_wdt.c watchdog: Convert release_resource to release_region/release_mem_region 2011-03-29 11:05:48 +00:00
rc32434_wdt.c
rdc321x_wdt.c mfd: Use mfd cell platform_data for rdc321x cells platform bits 2011-05-26 19:45:06 +02:00
riowd.c dt: Eliminate of_platform_{,un}register_driver 2011-02-28 13:22:46 -07:00
s3c2410_wdt.c watchdog: s3c2410: Add support for device tree based probe 2011-07-22 09:00:43 +00:00
sa1100_wdt.c
sb_wdog.c
sbc60xxwdt.c
sbc7240_wdt.c Fix common misspellings 2011-03-31 11:26:23 -03:00
sbc8360.c watchdog: cleanup spaces before tabs 2011-03-15 16:02:27 +00:00
sbc_epx_c3.c Remove one to many n's in a word 2011-03-01 15:47:58 +01:00
sbc_fitpc2_wdt.c watchdog: cleanup spaces before tabs 2011-03-15 16:02:27 +00:00
sc520_wdt.c
sc1200wdt.c
sch311x_wdt.c Fix common misspellings 2011-03-31 11:26:23 -03:00
scx200_wdt.c
shwdt.c Fix common misspellings 2011-03-31 11:26:23 -03:00
smsc37b787_wdt.c Fix common misspellings 2011-03-31 11:26:23 -03:00
softdog.c watchdog: softdog.c: enhancement to optionally invoke panic instead of reboot on timer expiry 2011-03-29 11:56:22 +00:00
sp805_wdt.c watchdog: sp805: Flush posted writes in enable/disable. 2011-07-26 21:19:56 +00:00
sp5100_tco.c watchdog: sp5100_tco.c: Check if firmware has set correct value in tcobase. 2011-03-29 11:05:57 +00:00
sp5100_tco.h
stmp3xxx_wdt.c
ts72xx_wdt.c watchdog: cleanup spaces before tabs 2011-03-15 16:02:27 +00:00
twl4030_wdt.c
txx9wdt.c
w83627hf_wdt.c
w83697hf_wdt.c
w83697ug_wdt.c watchdog: cleanup spaces before tabs 2011-03-15 16:02:27 +00:00
w83877f_wdt.c
w83977f_wdt.c
wafer5823wdt.c
wd501p.h
wdrtas.c
wdt.c watchdog: cleanup spaces before tabs 2011-03-15 16:02:27 +00:00
wdt285.c
wdt977.c watchdog: cleanup spaces before tabs 2011-03-15 16:02:27 +00:00
wdt_pci.c watchdog: cleanup spaces before tabs 2011-03-15 16:02:27 +00:00
wm831x_wdt.c watchdog: Handle multiple wm831x watchdogs being registered 2011-06-28 07:42:16 +00:00
wm8350_wdt.c
xen_wdt.c watchdog: Xen watchdog driver 2011-03-15 16:02:18 +00:00