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Joel Fernandes 4b645c9465 crypto: omap-aes - Simplify DMA usage by using direct SGs 
In early version of this driver, assumptions were made such as DMA layer
requires contiguous buffers etc. Due to this, new buffers were allocated,
mapped and used for DMA. These assumptions are no longer true and DMAEngine
scatter-gather DMA doesn't have such requirements. We simply the DMA operations
by directly using the scatter-gather buffers provided by the crypto layer
instead of creating our own.

Lot of logic that handled DMA'ing only X number of bytes of the total, or as
much as fitted into a 3rd party buffer is removed and is no longer required.

Also, good performance improvement of atleast ~20% seen with encrypting a
buffer size of 8K (1800 ops/sec vs 1400 ops/sec).  Improvement will be higher
for much larger blocks though such benchmarking is left as an exercise for the
reader.  Also DMA usage is much more simplified and coherent with rest of the
code.

Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-08-21 21:27:59 +10:00
..
accessibility
acpi Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2013-07-04 10:29:23 -07:00
amba
ata Merge branch 'for-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata 2013-07-03 19:49:46 -07:00
atm
auxdisplay
base Device tree updates for v3.11 2013-07-04 15:51:45 -07:00
bcma
block Merge branch 'akpm' (updates from Andrew Morton) 2013-07-03 17:12:13 -07:00
bluetooth
bus
cdrom
char hwrng: tx4939 - simplify use of devm_ioremap_resource 2013-08-14 20:42:04 +10:00
clk
clocksource
connector
cpufreq Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2013-07-04 11:40:58 -07:00
cpuidle
crypto crypto: omap-aes - Simplify DMA usage by using direct SGs 2013-08-21 21:27:59 +10:00
dca
devfreq Merge branch 'akpm' (updates from Andrew Morton) 2013-07-03 17:12:13 -07:00
dio
dma Merge branch 'akpm' (updates from Andrew Morton) 2013-07-03 17:12:13 -07:00
edac
eisa
extcon
firewire
firmware Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2013-07-04 10:29:23 -07:00
fmc
gpio
gpu Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2013-07-04 11:40:58 -07:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2013-07-04 15:35:08 -07:00
hsi
hv
hwmon New driver to support GMT G762/G763 pwm fan controllers 2013-07-03 19:56:35 -07:00
hwspinlock
i2c Merge branch 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2013-07-04 14:02:09 -07:00
ide
idle
iio
infiniband Device tree updates for v3.11 2013-07-04 15:51:45 -07:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2013-07-04 15:35:08 -07:00
iommu Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2013-07-04 10:29:23 -07:00
ipack
irqchip
isdn
leds
lguest Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2013-07-04 11:40:58 -07:00
macintosh
mailbox
md Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2013-07-04 11:40:58 -07:00
media Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2013-07-04 11:40:58 -07:00
memory
memstick drivers/memstick/host/r592.c: convert to module_pci_driver 2013-07-03 16:08:06 -07:00
message
mfd sound updates for 3.11 2013-07-03 19:52:22 -07:00
misc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2013-07-04 11:40:58 -07:00
mmc
mtd A couple of fixes and clean-ups, allow for assigning user-defined 2013-07-05 12:09:48 -07:00
net Device tree updates for v3.11 2013-07-04 15:51:45 -07:00
nfc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2013-07-04 11:40:58 -07:00
ntb
nubus
of Device tree updates for v3.11 2013-07-04 15:51:45 -07:00
oprofile
parisc
parport Merge branch 'akpm' (updates from Andrew Morton) 2013-07-03 17:12:13 -07:00
pci Merge branch 'akpm' (updates from Andrew Morton) 2013-07-03 17:12:13 -07:00
pcmcia
pinctrl
platform
pnp
power
pps pps-gpio: add device-tree binding and support 2013-07-03 16:08:06 -07:00
ps3
ptp
pwm
rapidio rapidio: change endpoint device name format 2013-07-03 16:08:05 -07:00
regulator
remoteproc
reset
rpmsg
rtc drivers/rtc/rtc-sirfsoc.c: add rtc drivers for CSR SiRFprimaII and SiRFatlasVI 2013-07-03 16:08:01 -07:00
s390 SCSI misc on 20130702 2013-07-04 12:30:30 -07:00
sbus
scsi SCSI misc on 20130702 2013-07-04 12:30:30 -07:00
sfi
sh
sn
spi Merge branch 'akpm' (updates from Andrew Morton) 2013-07-03 17:12:13 -07:00
ssb
ssbi
staging Merge branch 'akpm' (updates from Andrew Morton) 2013-07-03 17:12:13 -07:00
target
tc
thermal
tty Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2013-07-04 15:35:08 -07:00
uio
usb Device tree updates for v3.11 2013-07-04 15:51:45 -07:00
uwb
vfio Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2013-07-04 10:29:23 -07:00
vhost
video Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2013-07-04 11:40:58 -07:00
virt
virtio Merge branch 'akpm' (updates from Andrew Morton) 2013-07-03 17:12:13 -07:00
vlynq
vme
w1 drivers/w1/slaves/w1_ds2408.c: add magic sequence to disable P0 test mode 2013-07-03 16:08:06 -07:00
watchdog Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2013-07-04 10:29:23 -07:00
xen Merge branch 'akpm' (updates from Andrew Morton) 2013-07-03 17:12:13 -07:00
zorro
Kconfig
Makefile