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f8de50eb6b
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Keshavamurthy, Anil S f8de50eb6b Intel IOMMU: IOVA allocation and management routines 
This code implements a generic IOVA allocation and management.  As per Dave's
suggestion we are now allocating IO virtual address from Higher DMA limit
address rather than lower end address and this eliminated the need to preserve
the IO virtual address for multiple devices sharing the same domain virtual
address.

Also this code uses red black trees to store the allocated and reserved iova
nodes.  This showed a good performance improvements over previous linear
linked list.

[akpm@linux-foundation.org: remove inlines]
[akpm@linux-foundation.org: coding style fixes]
Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Muli Ben-Yehuda <muli@il.ibm.com>
Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Ashok Raj <ashok.raj@intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-22 08:13:18 -07:00
..
acorn/char unicode diacritics support 2007-10-17 08:42:52 -07:00
acpi Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial 2007-10-19 20:36:17 -07:00
amba Driver core: change add_uevent_var to use a struct 2007-10-12 14:51:01 -07:00
ata Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial 2007-10-19 20:36:17 -07:00
atm Fix misspellings of "system", "controller", "interrupt" and "necessary". 2007-10-19 23:10:43 +02:00
auxdisplay
base memory hotplug: rearrange memory hotplug notifier 2007-10-22 08:13:17 -07:00
block remove unused return within void return function 2007-10-20 02:18:21 +02:00
bluetooth
cdrom Use helpers to obtain task pid in printks 2007-10-19 11:53:43 -07:00
char Documentation: Remove references to dead "cyclades=" boot option 2007-10-20 00:01:12 +02:00
clocksource
connector [NET]: make netlink user -> kernel interface synchronious 2007-10-10 21:15:29 -07:00
cpufreq Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6 2007-10-12 15:49:37 -07:00
cpuidle cpuidle: consolidate 2.6.22 cpuidle branch into one patch 2007-10-10 00:12:41 -04:00
crypto [CRYPTO] sha: Add header file for SHA definitions 2007-10-10 16:55:50 -07:00
dca I/OAT: Add DCA services 2007-10-16 09:43:09 -07:00
dio
dma I/OAT: Add completion callback for async_tx interface use 2007-10-18 14:37:32 -07:00
edac NULL terminate the pci_device_ids in pasemi_edac 2007-10-19 11:53:56 -07:00
eisa signedness: module_param_array nump argument 2007-10-14 12:41:52 -07:00
fc4 Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2007-10-15 08:19:33 -07:00
firewire fix typo "insted" -> "instead" 2007-10-20 01:55:04 +02:00
firmware define global BIT macro 2007-10-19 11:53:42 -07:00
hid changed email 2007-10-20 00:47:32 +02:00
hwmon Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial 2007-10-19 20:36:17 -07:00
i2c typo fixes 2007-10-20 01:34:40 +02:00
ide Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial 2007-10-19 20:36:17 -07:00
ieee1394 ieee1394: ieee1394_core.c: use DEFINE_SPINLOCK for spinlock definition 2007-10-16 23:59:59 +02:00
infiniband [INET]: Justification for local port range robustness. 2007-10-18 22:00:17 -07:00
input Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial 2007-10-19 20:36:17 -07:00
isdn Spelling fix: explicitly 2007-10-19 23:22:55 +02:00
kvm sched: guest CPU accounting: maintain guest state in KVM 2007-10-15 17:00:19 +02:00
leds fix typo "sort" -> "short" 2007-10-20 01:55:58 +02:00
lguest Merge branch 'xen-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen 2007-10-17 11:10:11 -07:00
macintosh Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial 2007-10-19 20:36:17 -07:00
mca
md Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial 2007-10-19 20:36:17 -07:00
media more UTF-8 conversions 2007-10-19 23:22:11 +02:00
message Convert files to UTF-8 and some cleanups 2007-10-19 23:21:04 +02:00
mfd typo fixes 2007-10-20 01:34:40 +02:00
misc typo fixes 2007-10-20 01:34:40 +02:00
mmc mmc: at91_mci: cleanup: use MCI_ERRORS 2007-10-17 21:35:10 +02:00
mtd typo fixes 2007-10-20 01:34:40 +02:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial 2007-10-19 20:36:17 -07:00
nubus
of [SPARC/64]: Consolidate of_register_driver 2007-10-17 21:17:42 -07:00
oprofile
parisc [PARISC] Fix infinite loop in /proc/iomem 2007-10-18 12:34:22 -07:00
parport sysctl: parport remove binary paths 2007-10-18 14:37:23 -07:00
pci Intel IOMMU: IOVA allocation and management routines 2007-10-22 08:13:18 -07:00
pcmcia remove asm/bitops.h includes 2007-10-19 11:53:41 -07:00
pnp PNP: add debug message for adding new device 2007-10-17 08:43:04 -07:00
power Add missing newlines to some uses of dev_<level> messages 2007-10-18 14:37:28 -07:00
ps3 remove asm/bitops.h includes 2007-10-19 11:53:41 -07:00
rapidio
rtc typo fixes 2007-10-20 01:34:40 +02:00
s390 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial 2007-10-19 20:36:17 -07:00
sbus vfc_dev conversion to mutex: fallout 2007-10-20 15:04:06 -07:00
scsi Spelling fix: explicitly 2007-10-19 23:22:55 +02:00
serial Blackfin serial driver Kconfig: depend on DMA not being enabled rather than a specific DMA size 2007-10-21 22:30:01 +08:00
sh
sn
spi Fix misspellings of "system", "controller", "interrupt" and "necessary". 2007-10-19 23:10:43 +02:00
ssb [PATCH] ssb: fix build failure 2007-10-16 21:04:11 -04:00
tc lk201: remove obsolete driver 2007-10-17 08:42:57 -07:00
telephony kconfig: syntax cleanup - drop support for "depends/requires/def_boolean" 2007-10-12 21:20:32 +02:00
uio
usb typo fixes 2007-10-20 01:34:40 +02:00
video Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial 2007-10-19 20:36:17 -07:00
w1 Add missing newlines to some uses of dev_<level> messages 2007-10-18 14:37:28 -07:00
watchdog Convert files to UTF-8 and some cleanups 2007-10-19 23:21:04 +02:00
xen Add missing newlines to some uses of dev_<level> messages 2007-10-18 14:37:28 -07:00
zorro Convert files to UTF-8 and some cleanups 2007-10-19 23:21:04 +02:00
Kconfig mv watchdog tree under drivers 2007-10-18 10:39:03 +00:00
Makefile Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2007-10-19 13:12:46 -07:00