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4b645c9465
linux/drivers
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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 ARM SoC device tree changes 2013-07-02 14:23:01 -07:00
cdrom drivers/cdrom/cdrom.c: use kzalloc() for failing hardware 2013-07-03 16:07:25 -07:00
char hwrng: tx4939 - simplify use of devm_ioremap_resource 2013-08-14 20:42:04 +10:00
clk Power management and ACPI updates for 3.11-rc1 2013-07-03 14:35:40 -07:00
clocksource Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm 2013-07-03 09:46:29 -07:00
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 Power management and ACPI updates for 3.11-rc1 2013-07-03 14:35:40 -07:00
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 Add MCE signatures for family 0x15, models 30-3f. 2013-07-03 13:11:18 -07:00
eisa
extcon drivers: avoid format string in dev_set_name 2013-07-03 16:07:41 -07:00
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 Power management and ACPI updates for 3.11-rc1 2013-07-03 14:35:40 -07:00
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 drivers: avoid format string in dev_set_name 2013-07-03 16:07:41 -07:00
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 drivers: avoid format string in dev_set_name 2013-07-03 16:07:41 -07:00
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 Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-07-02 16:14:35 -07:00
isdn drivers: avoid format string in dev_set_name 2013-07-03 16:07:41 -07:00
leds leds: mc13783: Fix "uninitialized variable" warning 2013-07-02 08:44:02 -07:00
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 macintosh/windfarm: Remove obsolete cleanup for clientdata 2013-07-01 11:46:56 +10:00
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 drivers: avoid format strings in names passed to alloc_workqueue() 2013-07-03 16:07:41 -07:00
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 Power management and ACPI updates for 3.11-rc1 2013-07-03 14:35:40 -07:00
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 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-07-03 09:10:19 -07:00
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 Driver core patches for 3.11-rc1 2013-07-02 11:44:19 -07:00
pinctrl Pin control changes for the v3.11 kernel cycle: 2013-07-03 11:48:03 -07:00
platform drivers: avoid format string in dev_set_name 2013-07-03 16:07:41 -07:00
pnp Power management and ACPI updates for 3.11-rc1 2013-07-03 14:35:40 -07:00
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 regulator: Updates for v3.11 2013-07-03 11:56:38 -07:00
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 Merge branch 'pm-assorted' 2013-06-28 13:01:40 +02:00
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 uio: use vma_pages() to replace (vm_end - vm_start) >> PAGE_SHIFT 2013-07-03 16:07:26 -07:00
usb Device tree updates for v3.11 2013-07-04 15:51:45 -07:00
uwb drivers: avoid format string in dev_set_name 2013-07-03 16:07:41 -07:00
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 zorro: switch to fixed_size_llseek() 2013-06-29 12:57:28 +04:00
Kconfig
Makefile