Andy Shevchenko 851b7e16a0 dmatest: run test via debugfs ... Instead of doing modprobe dmatest ... modprobe -r dmatest we allow user to run tests interactively. The dmatest could be built as module or inside kernel. Let's consider those cases. 1. When dmatest is built as a module... After mounting debugfs and loading the module, the /sys/kernel/debug/dmatest folder with nodes will be created. They are the same as module parameters with addition of the 'run' node that controls run and stop phases of the test. Note that in this case test will not run on load automatically. Example of usage: % echo dma0chan0 > /sys/kernel/debug/dmatest/channel % echo 2000 > /sys/kernel/debug/dmatest/timeout % echo 1 > /sys/kernel/debug/dmatest/iterations % echo 1 > /sys/kernel/debug/dmatest/run After a while you will start to get messages about current status or error like in the original code. Note that running a new test will stop any in progress test. 2. When built-in in the kernel... The module parameters that is supplied to the kernel command line will be used for the first performed test. After user gets a control, the test could be interrupted or re-run with same or different parameters. For the details see the above section "1. When dmatest is built as a module..." In both cases the module parameters are used as initial values for the test case. You always could check them at run-time by running % grep -H . /sys/module/dmatest/parameters/* Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>		2013-04-15 09:51:17 +05:30
..
ABI	Merge branch 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86	2013-03-03 10:16:19 -08:00
accounting
acpi	ACPI / Documentation: refer to correct file for acpi_platform_device_ids[] table	2013-02-13 13:43:02 +01:00
aoe
arm
arm64
auxdisplay
backlight	backlight: lp855x_bl: support new LP8557 device	2013-02-21 17:22:25 -08:00
blackfin
block
blockdev	nbd: update documentation and link to mailinglist	2013-02-27 19:10:22 -08:00
bus-devices
cdrom
cgroups	Merge branch 'for-3.9/core' of git://git.kernel.dk/linux-block	2013-02-28 12:52:24 -08:00
connector
console
cpu-freq	cpufreq: Update Documentation for cpus and related_cpus	2013-02-02 00:01:16 +01:00
cpuidle
cris
crypto
development-process
device-mapper	md updates for 3.9	2013-03-05 17:22:08 -08:00
devicetree	This is the first batch of MFD fixes for 3.9.	2013-03-15 17:34:01 -07:00
DocBook	tty: Documentation: fix a path in a DocBook template	2013-04-03 11:45:38 -07:00
driver-model
dvb
early-userspace
EDID
extcon
fault-injection
fb
filesystems	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-02-26 20:16:07 -08:00
firmware_class
frv
hid
hwmon	hwmon: (lm75) Fix tcn75 prefix	2013-03-18 21:19:49 +01:00
i2c	i2c: Fix my e-mail address in drivers and documentation	2013-03-22 11:18:34 +01:00
i2o
ia64
ide
infiniband
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2013-03-11 07:49:37 -07:00
ioctl	wanrouter: completely decouple obsolete code from kernel.	2013-01-31 19:20:33 -05:00
isdn
ja_JP
kbuild	Merge branch 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild	2013-02-27 12:28:30 -08:00
kdump
ko_KR
laptops
leds	Documentation: leds: update LP55xx family devices	2013-02-06 15:59:30 -08:00
m68k
make
memory-devices
metag	metag: Basic documentation	2013-03-02 20:09:50 +00:00
mips
misc-devices
mmc
mn10300
mtd
namespaces	userns: Recommend use of memory control groups.	2013-01-26 22:20:06 -08:00
netlabel
networking	ipvs: add backup_only flag to avoid loops	2013-03-19 21:21:51 +09:00
nfc
parisc
PCI	PCI/MSI: Enable multiple MSIs with pci_enable_msi_block_auto()	2013-01-24 17:25:13 +01:00
pcmcia
power	PM / OPP: improve introductory documentation	2013-03-04 14:23:11 +01:00
powerpc	powerpc: Documentation for transactional memory on powerpc	2013-02-15 17:02:25 +11:00
pps
prctl
pti
ptp
rapidio
RCU
s390
scheduler
scsi	[SCSI] qla2xxx: Update copyright dates information in LICENSE.qla2xxx file.	2013-04-06 11:31:30 +01:00
security
serial
sh
sound	Revert "ALSA: hda - Allow power_save_controller option override DCAPS"	2013-04-04 15:35:39 +02:00
spi
sysctl
target
thermal	Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux	2013-02-28 19:48:26 -08:00
timers
trace	Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2013-03-11 07:54:29 -07:00
usb
vDSO
video4linux	[media] radio-si470x doc: add info about v4l2-ctl and sox+alsa	2013-02-13 17:33:20 -02:00
virtual	Merge tag 'kvm-3.9-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm	2013-02-24 13:07:18 -08:00
vm	ksm: add some comments	2013-02-23 17:50:23 -08:00
w1	w1: w1_therm: Add force-pullup option for "broken" sensors	2013-02-18 13:55:24 -08:00
watchdog	watchdog: core: dt: add support for the timeout-sec dt property	2013-03-01 12:48:36 +01:00
wimax
x86	Merge branch 'x86/microcode' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2013-02-22 19:22:52 -08:00
xtensa
zh_CN	Driver core patches for 3.9-rc1	2013-02-21 12:05:51 -08:00
.gitignore
00-INDEX	ImgTec Meta architecture changes for v3.9-rc1	2013-03-03 12:06:09 -08:00
applying-patches.txt
atomic_ops.txt
bad_memory.txt
basic_profiling.txt
binfmt_misc.txt
braille-console.txt
bt8xxgpio.txt
btmrvl.txt
BUG-HUNTING
bus-virt-phys-mapping.txt
cachetlb.txt
Changes
circular-buffers.txt
clk.txt
coccinelle.txt	coccicheck: Allow the user to give a V= (verbose) argument	2013-02-22 11:39:13 +01:00
CodingStyle
cpu-hotplug.txt
cpu-load.txt
cputopology.txt
crc32.txt
dcdbas.txt
debugging-modules.txt
debugging-via-ohci1394.txt
dell_rbu.txt
devices.txt
digsig.txt
DMA-API-HOWTO.txt	Documentation/DMA-API-HOWTO.txt: fix typo	2013-02-27 19:10:23 -08:00
DMA-API.txt
DMA-attributes.txt
dma-buf-sharing.txt	dma-buf: implement vmap refcounting in the interface logic	2013-02-27 15:13:36 +05:30
DMA-ISA-LPC.txt
dmaengine.txt
dmatest.txt	dmatest: run test via debugfs	2013-04-15 09:51:17 +05:30
dontdiff
dynamic-debug-howto.txt
edac.txt
eisa.txt
email-clients.txt
flexible-arrays.txt
futex-requeue-pi.txt
gcov.txt
gpio.txt
highuid.txt
HOWTO
hw_random.txt
hwspinlock.txt
init.txt
initrd.txt
Intel-IOMMU.txt
intel_txt.txt
io-mapping.txt
io_ordering.txt
iostats.txt
IPMI.txt	ipmi: add options to disable openfirmware and PCI scanning	2013-02-27 19:10:21 -08:00
IRQ-affinity.txt
IRQ-domain.txt
IRQ.txt
irqflags-tracing.txt
isapnp.txt
java.txt
kernel-doc-nano-HOWTO.txt
kernel-docs.txt
kernel-parameters.txt	ImgTec Meta architecture changes for v3.9-rc1	2013-03-03 12:06:09 -08:00
kmemcheck.txt
kmemleak.txt
kobject.txt
kprobes.txt
kref.txt
ldm.txt
local_ops.txt
lockdep-design.txt
lockstat.txt	locking/stat: Fix a typo	2013-02-19 08:42:37 +01:00
lockup-watchdogs.txt
logo.gif
logo.txt
magic-number.txt	wanrouter: completely decouple obsolete code from kernel.	2013-01-31 19:20:33 -05:00
Makefile
ManagementStyle
md.txt
media-framework.txt	[media] Documentation/media-framework.txt: fix a sentence	2013-02-08 13:27:13 -02:00
memory-barriers.txt
memory-hotplug.txt
mono.txt
mutex-design.txt
nommu-mmap.txt
numastat.txt
oops-tracing.txt
padata.txt
parport-lowlevel.txt
parport.txt
percpu-rw-semaphore.txt
pi-futex.txt
pinctrl.txt	drivers/pinctrl: grab default handles from device core	2013-01-23 16:39:51 +01:00
pnp.txt
preempt-locking.txt
printk-formats.txt	Randy has moved	2013-03-08 15:05:34 -08:00
pwm.txt
ramoops.txt
rbtree.txt
remoteproc.txt
rfkill.txt
robust-futex-ABI.txt
robust-futexes.txt
rpmsg.txt
rt-mutex-design.txt
rt-mutex.txt
rtc.txt
SAK.txt
SecurityBugs
serial-console.txt
sgi-ioc4.txt
sgi-visws.txt
SM501.txt
smsc_ece1099.txt
sparse.txt
spinlocks.txt
stable_api_nonsense.txt
stable_kernel_rules.txt
static-keys.txt
SubmitChecklist
SubmittingDrivers
SubmittingPatches	Randy has moved	2013-03-08 15:05:34 -08:00
svga.txt
sysfs-rules.txt
sysrq.txt
unaligned-memory-access.txt
unicode.txt
unshare.txt
vfio.txt
VGA-softcursor.txt
vgaarbiter.txt
video-output.txt
vme_api.txt
volatile-considered-harmful.txt
workqueue.txt
xz.txt
zorro.txt