From: Sinan Kaya <okaya@codeaurora.org>
To: Marc Zyngier <marc.zyngier@arm.com>, Mark Rutland <mark.rutland@arm.com>
Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
arnd@arndb.de, vinod.koul@intel.com, jcm@redhat.com,
timur@codeaurora.org, linux-kernel@vger.kernel.org,
agross@codeaurora.org, dmaengine@vger.kernel.org,
kvmarm@lists.cs.columbia.edu, linux-arm-msm@vger.kernel.org
Subject: Re: [PATCH V12 3/7] dma: add Qualcomm Technologies HIDMA management driver
Date: Fri, 15 Jan 2016 17:47:52 -0500 [thread overview]
Message-ID: <56997718.70707@codeaurora.org> (raw)
In-Reply-To: <56992D16.6070800@arm.com>
On 1/15/2016 12:32 PM, Marc Zyngier wrote:
>>> Do you have a link to that? Seeing it would help to ease my concerns.
>> >
>> > The QEMU driver has not been posted yet. As far as I know, it just discovers the memory
>> > resources on the platform object and creates mappings for the guest machine only.
>> >
>> > Shanker Donthineni and Vikram Sethi will post the QEMU patch later.
> Then may I suggest you both synchronize your submissions? I'd really
> like to hear from the QEMU maintainers that they are satisfied with that
> side of the story as well.
The HIDMA QEMU driver is also based on VFIO platform driver in QEMU. It is not a new concept
or new framework. All tried and tested solutions.
The driver below is already using this feature. HIDMA is no exception.
I have verified functionality of HIDMA linux driver with HIDMA QEMU driver already.
https://lxr.missinglinkelectronics.com/qemu/hw/arm/sysbus-fdt.c#L67
https://lxr.missinglinkelectronics.com/qemu/hw/vfio/calxeda-xgmac.c#L18
https://lxr.missinglinkelectronics.com/qemu/include/hw/vfio/vfio-calxeda-xgmac.h
--
Sinan Kaya
Qualcomm Technologies, Inc. on behalf of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project
next prev parent reply other threads:[~2016-01-15 22:47 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-11 14:45 [PATCH v12 0/7] dma: add Qualcomm Technologies HIDMA driver Sinan Kaya
2016-01-11 14:45 ` [PATCH V12 1/7] dma: qcom_bam_dma: move to qcom directory Sinan Kaya
2016-01-11 14:45 ` [PATCH V12 2/7] dma: hidma: Add Device Tree support Sinan Kaya
2016-01-15 15:16 ` Mark Rutland
2016-01-15 15:30 ` Mark Rutland
2016-01-15 17:05 ` Sinan Kaya
2016-01-18 11:39 ` Mark Rutland
2016-01-15 16:49 ` Sinan Kaya
[not found] ` <5699232E.60809-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2016-01-18 11:49 ` Mark Rutland
2016-01-18 14:04 ` Sinan Kaya
2016-01-11 14:45 ` [PATCH V12 3/7] dma: add Qualcomm Technologies HIDMA management driver Sinan Kaya
2016-01-15 14:56 ` Mark Rutland
2016-01-15 15:12 ` Sinan Kaya
2016-01-15 15:22 ` Mark Rutland
2016-01-15 17:16 ` Sinan Kaya
[not found] ` <56992987.5080603-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2016-01-15 17:32 ` Marc Zyngier
2016-01-15 22:47 ` Sinan Kaya [this message]
2016-01-18 9:06 ` Marc Zyngier
2016-01-22 18:38 ` Sinan Kaya
2016-01-15 15:14 ` Marc Zyngier
2016-01-15 15:36 ` Mark Rutland
2016-01-15 16:01 ` Sinan Kaya
2016-01-20 22:18 ` Sinan Kaya
2016-01-15 15:40 ` Sinan Kaya
[not found] ` <569912F3.9040507-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2016-01-15 17:28 ` Marc Zyngier
2016-01-15 17:44 ` Sinan Kaya
2016-01-15 18:08 ` Marc Zyngier
2016-01-11 14:45 ` [PATCH V12 4/7] dma: add Qualcomm Technologies HIDMA channel driver Sinan Kaya
2016-01-11 14:45 ` [PATCH V12 5/7] dma: qcom_hidma: implement lower level hardware interface Sinan Kaya
2016-01-11 14:45 ` [PATCH V12 6/7] dma: qcom_hidma: add debugfs hooks Sinan Kaya
2016-01-11 14:45 ` [PATCH V12 7/7] dma: qcom_hidma: add support for object hierarchy Sinan Kaya
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