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Konrad Rzeszutek Wilk 480125ba49 x86, iommu: Make all IOMMU's detection routines return a value. 
We return 1 if the IOMMU has been detected. Zero or an error number
if we failed to find it. This is in preperation of using the IOMMU_INIT
so that we can detect whether an IOMMU is present. I have not
tested this for regression on Calgary, nor on AMD Vi chipsets as
I don't have that hardware.

CC: Muli Ben-Yehuda <muli@il.ibm.com>
CC: "Jon D. Mason" <jdmason@kudzu.us>
CC: "Darrick J. Wong" <djwong@us.ibm.com>
CC: Jesse Barnes <jbarnes@virtuousgeek.org>
CC: David Woodhouse <David.Woodhouse@intel.com>
CC: Chris Wright <chrisw@sous-sol.org>
CC: Yinghai Lu <yinghai@kernel.org>
CC: Joerg Roedel <joerg.roedel@amd.com>
CC: H. Peter Anvin <hpa@zytor.com>
CC: Fujita Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
LKML-Reference: <1282845485-8991-3-git-send-email-konrad.wilk@oracle.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
 		2010-08-26 15:13:13 -07:00
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accessibility
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acpi Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2010-08-15 17:37:07 -07:00
amba
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ata ata: update for of_device to platform_device replacement 2010-08-16 15:13:28 -06:00
atm Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6 2010-08-12 09:11:31 -07:00
auxdisplay
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base
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block of: fix missing headers for of_address_to_resource() in MTD and SysACE drivers 2010-08-17 13:16:47 -06:00
bluetooth
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cdrom
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char Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel 2010-08-22 11:03:27 -07:00
clocksource
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connector
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cpufreq
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cpuidle
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crypto [S390] zcrypt: fix Kconfig dependencies 2010-08-13 10:06:54 +02:00
dca
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dio
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dma Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6 2010-08-12 09:11:31 -07:00
edac Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6 2010-08-12 09:11:31 -07:00
eisa
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firewire
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firmware Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2010-08-14 12:34:34 -07:00
gpio gpiolib: Implement set_debounce for WM831x GPIOs 2010-08-12 11:27:57 +02:00
gpu Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel 2010-08-22 11:03:27 -07:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2010-08-18 15:29:38 -07:00
hwmon revert "hwmon: f71882fg: add support for the Fintek F71808E" 2010-08-20 09:34:55 -07:00
i2c Merge branch 'for-linus/i2c-2636' of git://git.fluff.org/bjdooks/linux 2010-08-14 11:57:54 -07:00
ide ide: use module_param_named rather than module_param_call 2010-08-11 23:04:39 +09:30
idle Merge branch 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6 2010-08-15 11:17:52 -07:00
ieee1394
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ieee802154
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infiniband Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6 2010-08-12 09:11:31 -07:00
input Input: fix faulty XXinput_* calls 2010-08-13 12:03:24 -07:00
isdn Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2010-08-13 10:38:12 -07:00
leds Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6 2010-08-12 09:11:31 -07:00
lguest
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macintosh Merge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging 2010-08-12 10:06:29 -07:00
mca
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md md raid-1/10 Fix bio_rw bit manipulations again 2010-08-18 16:16:05 +10:00
media v4l: Remove reference to bkl ioctl in compat ioctl handling 2010-08-14 00:24:24 +02:00
memstick memstick: fix hangs on unexpected device removal in mspro_blk 2010-08-12 08:43:31 -07:00
message fusion: add function parameter names to kernel-doc 2010-08-14 16:21:00 -07:00
mfd Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6 2010-08-12 10:01:30 -07:00
misc Merge branch 'params' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus 2010-08-12 10:01:59 -07:00
mmc drivers/mmc/host/sdhci-s3c.c: use the correct mutex and card detect function 2010-08-20 09:34:55 -07:00
mtd Merge git://git.infradead.org/mtd-2.6 2010-08-21 12:47:05 -07:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2010-08-17 18:34:37 -07:00
nubus
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of
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oprofile
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parisc
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parport Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6 2010-08-12 09:11:31 -07:00
pci x86, iommu: Make all IOMMU's detection routines return a value. 2010-08-26 15:13:13 -07:00
pcmcia Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6 2010-08-12 09:11:31 -07:00
platform platform/x86: move rfkill for Dell Mini 1012 to compal-laptop 2010-08-16 11:55:00 -04:00
pnp
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power Merge git://git.infradead.org/battery-2.6 2010-08-12 09:58:33 -07:00
pps
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ps3
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rapidio
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regulator regulator: Remove default DEBUG define from TPS6586x 2010-08-11 11:38:03 +01:00
rtc Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6 2010-08-12 09:11:31 -07:00
s390 Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6 2010-08-13 10:54:04 -07:00
sbus
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scsi drivers/scsi/qla4xxx: fix build 2010-08-20 09:34:56 -07:00
serial Merge branch 'merge-devicetree' of git://git.secretlab.ca/git/linux-2.6 2010-08-18 09:26:17 -07:00
sfi
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sh
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sn
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spi m68knommu: include sched.h in ColdFire/SPI driver 2010-08-18 12:44:31 +10:00
ssb
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staging fs: fs_struct rwlock to spinlock 2010-08-18 08:35:46 -04:00
tc
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telephony
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thermal
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uio
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usb Merge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging 2010-08-12 10:06:29 -07:00
uwb
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vhost
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video matroxfb: fix incorrect use of memcpy_toio() 2010-08-20 09:34:54 -07:00
virtio
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vlynq
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w1
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watchdog watchdog: hpwdt (12/12): Make NMI decoding a compile-time option 2010-08-13 20:54:53 +00:00
xen Merge branch 'stable/xen-swiotlb-0.8.6' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen 2010-08-12 09:09:41 -07:00
zorro
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Kconfig
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Makefile
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