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Alan Cox a57c1bade5 libata-sff: Fix oops reported in kerneloops.org for pnp devices with no ctl 
- Make ata_sff_altstatus private so nobody uses it by mistake
- Drop the 400nS delay from it

Add

ata_sff_irq_status	-	encapsulates the IRQ check logic

This function keeps the existing behaviour for altstatus using devices. I
actually suspect the logic was wrong before the changes but -rc isn't the
time to play with that

ata_sff_sync		-	ensure writes hit the device

Really we want an io* operation for 'is posted' eg ioisposted(ioaddr) so
that we can fix the nasty delay this causes on most systems.

- ata_sff_pause		-	400nS delay

Ensure the command hit the device and delay 400nS

- ata_sff_dma_pause

Ensure the I/O hit the device and enforce an HDMA1:0 transition delay.
Requires altstatus register exists, BUG if not so we don't risk
corruption in MWDMA modes. (UDMA the checksum will save your backside in
theory)

The only other complication then is devices with their own handlers.
rb532 can use dma_pause but scc needs to access its own altstatus
register for internal errata workarounds so directly call the drivers own
altstatus function.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-04 06:40:41 -04:00
..
accessibility Kconfig: improved help for CONFIG_ACCESSIBILITY 2008-05-08 10:46:55 -07:00
acorn/char
acpi acpi: fix integer as NULL pointer warning 2008-05-23 08:11:06 -07:00
amba
ata libata-sff: Fix oops reported in kerneloops.org for pnp devices with no ctl 2008-06-04 06:40:41 -04:00
atm drivers/atm/: remove CVS keywords 2008-05-20 14:52:25 -07:00
auxdisplay
base driver-core: prepare for 2.6.27 api change by adding dev_set_name 2008-05-29 21:10:01 -07:00
block virtio_blk: allow read-only disks 2008-05-30 15:09:44 +10:00
bluetooth hci_usb.h: fix hard-to-trigger race 2008-05-02 16:45:10 -07:00
cdrom [POWERPC] iSeries: Remove unused mail address 2008-05-23 16:45:04 +10:00
char virtio: An entropy device, as suggested by hpa. 2008-05-30 15:09:44 +10:00
clocksource
connector
cpufreq [CPUFREQ] fix double unlock of cpu_policy_rwsem in drivers/cpufreq/cpufreq.c 2008-05-29 12:10:12 -04:00
cpuidle
crypto
dca
dio
dma iop-adma: fixup some kzalloc/memset confusions 2008-05-20 13:51:20 -07:00
edac edac: mpc85xx: fix building as a module 2008-05-24 09:56:13 -07:00
eisa
firewire firewire: prevent userspace from accessing shut down devices 2008-05-20 18:24:17 +02:00
firmware edd: add default mode CONFIG_EDD_OFF=n, override with edd={on,off} 2008-04-29 08:06:23 -07:00
gpio gpiolib: fix off by one errors 2008-05-24 09:56:11 -07:00
hid HID: remove CVS keywords 2008-05-20 16:44:43 +02:00
hwmon ibmaem: new driver for power/energy/temp meters in IBM System X hardware 2008-05-24 09:56:08 -07:00
i2c i2c/max6875: Really prevent 24RF08 corruption 2008-05-18 20:49:41 +02:00
ide ide: fix race in device_create 2008-05-20 13:31:54 -07:00
ieee1394 ieee1394: sbp2: use correct size of command descriptor block 2008-05-20 18:24:17 +02:00
infiniband Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband 2008-05-23 11:11:44 -07:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2008-05-30 10:17:19 -07:00
isdn isdn: fix integer as NULL pointer warning 2008-05-23 08:11:06 -07:00
leds LEDS: fix race in device_create 2008-05-20 13:31:55 -07:00
lguest virtio: set device index in common code. 2008-05-30 15:09:42 +10:00
macintosh [POWERPC] macintosh: Replace deprecated __initcall with device_initcall 2008-05-15 20:50:00 +10:00
mca proc: remove proc_root from drivers 2008-04-29 08:06:18 -07:00
md md: restart recovery cleanly after device failure. 2008-05-24 09:56:10 -07:00
media tuner: Do not alter i2c_client.name 2008-05-26 16:08:40 +02:00
memstick
message Remove duplicated unlikely() in IS_ERR() 2008-04-29 08:06:25 -07:00
mfd HTC_EGPIO is ARM-only 2008-05-21 16:56:00 -07:00
misc acpi: fix sparse const errors 2008-05-30 07:43:24 -07:00
mmc missing dependencies on HAS_DMA 2008-05-21 16:55:59 -07:00
mtd ck804rom: fix driver_data in probe table. 2008-05-27 07:34:38 -07:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2008-05-30 07:45:20 -07:00
nubus proc: convert /proc/bus/nubus to seq_file interface 2008-04-29 08:06:19 -07:00
of [POWERPC] Add null pointer check to of_find_property 2008-05-15 20:49:49 +10:00
oprofile oprofile: don't request cache line alignment for cpu_buffer 2008-05-14 19:11:12 -07:00
parisc drivers/parisc: replace remaining __FUNCTION__ occurrences 2008-05-15 10:38:54 -04:00
parport debugobjects: add timer specific object debugging code 2008-04-30 08:29:53 -07:00
pci PCI: fix rpadlpar pci hotplug driver sysfs usage 2008-05-30 09:50:46 -07:00
pcmcia electra_cf: Add MODULE_DEVICE_TABLE() 2008-05-27 16:07:45 -05:00
pnp Clean up 'print_fn_descriptor_symbol()' types 2008-05-15 17:50:37 -07:00
power Power Supply: fix race in device_create 2008-05-20 13:31:55 -07:00
ps3 [POWERPC] PS3: Remove unsupported wakeup sources 2008-05-02 15:00:44 +10:00
rapidio [RAPIDIO] Auto-probe the RapidIO system size 2008-04-29 19:40:28 +10:00
rtc rtc: m41t80: include <linux/kernel.h> for printk() 2008-05-13 08:02:26 -07:00
s390 Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus 2008-05-30 10:20:03 -07:00
sbus sbus bpp: instances missed in s/dev_name/bpp_dev_name/ 2008-05-21 16:55:59 -07:00
scsi scsi: fix integer as NULL pointer warning 2008-05-23 08:11:07 -07:00
serial 8250 Serial Driver: revert extra IRQ flag definition patch 2008-05-31 16:10:04 +08:00
sh
sn
spi spi: remove some spidev oops-on-rmmod paths 2008-05-24 09:56:14 -07:00
ssb
tc
telephony
thermal thermal: re-name thermal.c to thermal_sys.c 2008-04-29 03:12:17 -04:00
uio UIO: fix race in device_create 2008-05-20 13:31:55 -07:00
usb Revert "USB: EHCI: fix performance regression" 2008-05-29 19:43:27 -07:00
video Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2008-05-24 10:13:16 -07:00
virtio virtio: force callback on empty. 2008-05-30 15:09:46 +10:00
w1 drivers: replace remaining __FUNCTION__ occurrences 2008-04-30 08:29:53 -07:00
watchdog drivers/watchdog/geodewdt.c: build fix 2008-05-30 10:16:58 -07:00
xen xen: add balloon driver 2008-04-24 23:57:33 +02:00
zorro zorro: use non-racy method for proc entries creation 2008-04-29 08:06:21 -07:00
Kconfig Basic braille screen reader support 2008-04-30 08:29:52 -07:00
Makefile Basic braille screen reader support 2008-04-30 08:29:52 -07:00