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Currently the documentation states that channels must be configured before
running the dmatest. This has not been true since commit 6b41030fdc
("dmaengine: dmatest: Restore default for channel"). Fix accordingly.
Fixes: 6b41030fdc ("dmaengine: dmatest: Restore default for channel")
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20211118100952.27268-3-daniel.thompson@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Currently it can difficult to determine what dmatest does without
reading the source code. Let's add a description.
The description is taken mostly from the patch header of
commit 4a776f0aa9 ("dmatest: Simple DMA memcpy test client").
It has been edited and updated slightly. Nevertheless the new text was
largely written by Haarvard Skinnemoen and was copied from another
patch, already committed to the kernel, which has Haarvard's SoB:
attached to it.
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20211118100952.27268-2-daniel.thompson@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Fix the formatting of the multi-channel test usage example. Call out
the note about parameter ordering and add detail on the settings of
parameters for the new version of dmatest.
Fixes: f80f9988a2 ("dmaengine: Documentation: Add documentation for multi chan testing")
Signed-off-by: Gary R Hook <gary.hook@amd.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Fix markup warning: insert a blank line before the hint.
Documentation/driver-api/dmaengine/dmatest.rst:63: WARNING: Unexpected indentation.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
dmaengine updates for v4.21-rc1
- New driver for UniPhier MIO DMA controller
- Remove R-Mobile APE6 support
- Sprd driver updates and support for cyclic link-list
- Remove dma_slave_config direction usage from rest of drivers
- Minor updates to dmatest, dw-dmac, zynqmp and bcm dma drivers
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Merge tag 'dmaengine-4.21-rc1' of git://git.infradead.org/users/vkoul/slave-dma
Pull dmaengine updates from Vinod Koul:
"This includes a new driver, removes R-Mobile APE6 as it is no longer
used, sprd cyclic dma support, last batch of dma_slave_config
direction removal and random updates to bunch of drivers.
Summary:
- New driver for UniPhier MIO DMA controller
- Remove R-Mobile APE6 support
- Sprd driver updates and support for cyclic link-list
- Remove dma_slave_config direction usage from rest of drivers
- Minor updates to dmatest, dw-dmac, zynqmp and bcm dma drivers"
* tag 'dmaengine-4.21-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (48 commits)
dmaengine: qcom_hidma: convert to DEFINE_SHOW_ATTRIBUTE
dmaengine: pxa: remove DBGFS_FUNC_DECL()
dmaengine: mic_x100_dma: convert to DEFINE_SHOW_ATTRIBUTE
dmaengine: amba-pl08x: convert to DEFINE_SHOW_ATTRIBUTE
dmaengine: Documentation: Add documentation for multi chan testing
dmaengine: dmatest: Add transfer_size parameter
dmaengine: dmatest: Add alignment parameter
dmaengine: dmatest: Use fixed point div to calculate iops
dmaengine: dmatest: Add support for multi channel testing
dmaengine: rcar-dmac: Document R8A774C0 bindings
dt-bindings: dmaengine: usb-dmac: Add binding for r8a774c0
dmaengine: zynqmp_dma: replace spin_lock_bh with spin_lock_irqsave
dmaengine: sprd: Add me as one of the module authors
dmaengine: sprd: Support DMA 2-stage transfer mode
dmaengine: sprd: Support DMA link-list cyclic callback
dmaengine: sprd: Set cur_desc as NULL when free or terminate one dma channel
dmaengine: sprd: Fix the last link-list configuration
dmaengine: sprd: Get transfer residue depending on the transfer direction
dmaengine: sprd: Remove direction usage from struct dma_slave_config
dmaengine: dmatest: fix a small memory leak in dmatest_func()
...
It's not the first time I've got a private email in regard to
dmatest.c module.
Motivate people, by adding a note, to send their questions
to the mailing list instead
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Fix spelling for parenthesis in dmatest documentation.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
[ jc: did s/parenthesis/parentheses/ and reflowed ]
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Make dmatest.rst indeed reST compatible.
Achieve this by fixing several formatting issues.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The documentation is not so clear for newbies in a sense of what type of the
channels are supported by it.
Clarify this by adding a note at the preamble of the documentation.
Reported-by: "Zhu, Tony" <tony.zhu@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This converts and moves dmatest file with some format
changes for RST style
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
