Hi Andy,
Thanks for the support you have been providing. I apologize the
ignorance on the software side as I am a EE person with minimal
exposure to Software development. Please bear with this.
Best
Girish
On Thu, Oct 9, 2014 at 11:09 PM, GIRISH HALADY <girish.halady@xxxxxxxxx> wrote:
> Please see inline comment:
>
> grep DMA .config ?
>
> # DMA engine configuration
> menuconfig DMADEVICES
> bool "DMA Engine support"
> depends on HAS_DMA
> DMA engines can do asynchronous data transfers without
> DMA Device drivers supported by the configured arch, it may
> config DMADEVICES_DEBUG
> bool "DMA Engine debugging"
> depends on DMADEVICES != n
> say N here. This enables DMA engine core and driver debugging.
> config DMADEVICES_VDEBUG
> bool "DMA Engine verbose debugging"
> depends on DMADEVICES_DEBUG != n
> the DMA engine core and drivers.
> if DMADEVICES
> comment "DMA Devices"
> config INTEL_MID_DMAC
> tristate "Intel MID DMA support for Peripheral DMA controllers"
> select DMA_ENGINE
> Enable support for the Intel(R) MID DMA engine present
> select DMA_ENGINE
> select DMA_VIRTUAL_CHANNELS
> Platform has a PL08x DMAC device
> which can provide DMA engine support
> config INTEL_IOATDMA
> tristate "Intel I/OAT DMA support"
> select DMA_ENGINE
> select DMA_ENGINE_RAID
> Enable support for the Intel(R) I/OAT DMA engine present
> config INTEL_IOP_ADMA
> tristate "Intel IOP ADMA support"
> select DMA_ENGINE
> config AT_HDMAC
> tristate "Atmel AHB DMA support"
> select DMA_ENGINE
> Support the Atmel AHB DMA controller.
> config FSL_DMA
> tristate "Freescale Elo series DMA support"
> select DMA_ENGINE
> Enable support for the Freescale Elo series DMA controllers.
> The Elo is the DMA controller on some mpc82xx and mpc83xx parts, the
> config MPC512X_DMA
> tristate "Freescale MPC512x built-in DMA engine support"
> select DMA_ENGINE
> Enable support for the Freescale MPC512x built-in DMA engine.
>
> select DMA_ENGINE
> select DMA_ENGINE_RAID
> select DMA_ENGINE
> config TXX9_DMAC
> tristate "Toshiba TXx9 SoC DMA support"
> select DMA_ENGINE
> Support the TXx9 SoC internal DMA controller. This can be
> config TEGRA20_APB_DMA
> bool "NVIDIA Tegra20 APB DMA support"
> select DMA_ENGINE
> Support for the NVIDIA Tegra20 APB DMA controller driver. The
> DMA controller is having multiple DMA channel which can be
> This DMA controller transfers data from memory to peripheral fifo
> config S3C24XX_DMAC
> tristate "Samsung S3C24XX DMA support"
> depends on ARCH_S3C24XX && !S3C24XX_DMA
> select DMA_ENGINE
> select DMA_VIRTUAL_CHANNELS
> Support for the Samsung S3C24XX DMA controller driver. The
> DMA controller is having multiple DMA channels which can be
> The DMA controller can transfer data from memory to peripheral,
> bool "ST-Ericsson COH901318 DMA support"
> select DMA_ENGINE
> Support for ST-Ericsson DMA40 controller
> config AMCC_PPC440SPE_ADMA
> tristate "AMCC PPC440SPe ADMA support"
> select DMA_ENGINE
> select DMA_ENGINE_RAID
> config TIMB_DMA
> tristate "Timberdale FPGA DMA support"
> select DMA_ENGINE
> Enable support for the Timberdale FPGA DMA engine.
> config SIRF_DMA
> tristate "CSR SiRFprimaII/SiRFmarco DMA support"
> select DMA_ENGINE
> Enable support for the CSR SiRFprimaII DMA engine.
> config TI_EDMA
> bool "TI EDMA support"
> select DMA_ENGINE
> select DMA_VIRTUAL_CHANNELS
> select TI_PRIV_EDMA
> Enable support for the TI EDMA controller. This DMA
> config PL330_DMA
> tristate "DMA API Driver for PL330"
> select DMA_ENGINE
> Select if your platform has one or more PL330 DMACs.
> config PCH_DMA
> tristate "Intel EG20T PCH / LAPIS Semicon IOH(ML7213/ML7223/ML7831) DMA"
> select DMA_ENGINE
> Enable support for Intel EG20T PCH DMA engine.
> config IMX_SDMA
> tristate "i.MX SDMA support"
> select DMA_ENGINE
> Support the i.MX SDMA engine. This engine is integrated into
> config IMX_DMA
> config PL330_DMA
> tristate "DMA API Driver for PL330"
> select DMA_ENGINE
> Select if your platform has one or more PL330 DMACs.
> config PCH_DMA
> tristate "Intel EG20T PCH / LAPIS Semicon IOH(ML7213/ML7223/ML7831) DMA"
> select DMA_ENGINE Enable support for Intel EG20T PCH DMA engine.
> config IMX_SDMA
> tristate "i.MX SDMA support"
> select DMA_ENGINE
> Support the i.MX SDMA engine. This engine is integrated into
> config IMX_DMA
> tristate "i.MX DMA support"
> select DMA_ENGINE
> Support the i.MX DMA engine. This engine is integrated into
> config MXS_DMA
> bool "MXS DMA support"
> select DMA_ENGINE
> Support the MXS DMA engine. This engine including APBH-DMA
> and APBX-DMA is integrated into Freescale i.MX23/28 chips.
>
>
> However, the DMAtest just does NOT just work. Please help getting
> this resolved.
>
>
> Best Regards
> Girish
>
> On Thu, Oct 9, 2014 at 10:41 PM, GIRISH HALADY <girish.halady@xxxxxxxxx> wrote:
>> Hi Andy,
>> Apologize, i still couldn't get the dmatest to work either
>> compiled with the kernel or compiled as a kernel module. Would greatly
>> help if you could help list the steps specifically for running this
>> test on Opensource Linux with Microzed ZC7010.
>>
>> Thanks and Best Regards
>> Girish
>>
>> On Thu, Oct 9, 2014 at 1:12 AM, GIRISH HALADY <girish.halady@xxxxxxxxx> wrote:
>>> Hi Andy,
>>> Please ignore my earlier e-mail. In an attempt to compile
>>> the DYNAMIC_DEBUG, I forgot to compile the dmatest under the
>>> dma_drivers. Now with the test included, it still gives the same
>>> error.
>>>
>>>> zynq> dmatest.channel=dma0chan0 dmatest.timeout=2000 dmatest.iteration
>>>> s=1 dmatest.run=1
>>>> -/bin/ash: dmatest.channel=dma0chan0: not found
>>>
>>> What I suspect is that it may not have a Shell instance. Could you
>>> please help clarify what Shell is needed by the test to run? Do we
>>> need to install a shell separately in the kernel image?
>>>
>>> Thanks & Best Regards
>>> Girish Halady
>>>
>>> On Mon, Oct 6, 2014 at 4:20 AM, Andy Shevchenko
>>> <andriy.shevchenko@xxxxxxxxxxxxxxx> wrote:
>>>> On Sun, 2014-10-05 at 23:56 -0700, GIRISH HALADY wrote:
>>>>> Hi Andiry,
>>>>> Thanks for the post on www.kernel.org:
>>>>> https://www.kernel.org/doc/Documentation/dmatest.txt
>>>>>
>>>>>
>>>> First of all, I dared to answer this mail publicly. Please, keep the
>>>> mailing list address in the Cc list (dmaengine@xxxxxxxxxxxxxxx) for now
>>>> and for any future mail regarding to DMA engine subsystem related
>>>> issues.
>>>>>
>>>>> I was trying to run this test on my target (Microzed Zynq7010 board).
>>>>> I could get the dmatest compiled within the kernel. However, when I
>>>>> try running the command I get some strange error. Thought I check
>>>>> with you if I am missing something.
>>>>
>>>>> The objective that I setforth was to be able to run the dmatest from
>>>>> DDR to a RAM instance in the Programmable Logic which is mapped to the
>>>>> processing system (PS7) that runs dual-ARM A9 and an embedded linux
>>>>> kernel on it.
>>>>
>>>>> zynq> modprobe dmatest channel=dma0chan0 timeout=2000 iterations=1 run
>>>>> =1
>>>>> modprobe: chdir(3.14.0-xilinx-dirty): No such file or directory
>>>>>
>>>>> Kernel command : ERROR
>>>>
>>>>> zynq> dmatest.channel=dma0chan0 dmatest.timeout=2000 dmatest.iteration
>>>>> s=1 dmatest.run=1
>>>>> -/bin/ash: dmatest.channel=dma0chan0: not found
>>>>
>>>>> Please help me understand how I go about fixing this.
>>>>>
>>>> Have you tried to get the list of available dma channels first as
>>>> suggested by the documentation?
>>>>
>>>> "Hint: available channel list could be extracted by running the
>>>> following command:
>>>> % ls -1 /sys/class/dma/
>>>> "
>>>>
>>>>
>>>> --
>>>> Andy Shevchenko <andriy.shevchenko@xxxxxxxxx>
>>>> Intel Finland Oy
>>>>
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