From: Sinan Kaya <okaya@codeaurora.org>
To: 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,
marc.zyngier@arm.com, 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, 22 Jan 2016 13:38:59 -0500 [thread overview]
Message-ID: <56A27743.40008@codeaurora.org> (raw)
In-Reply-To: <20160115152257.GK3262@leverpostej>
On 1/15/2016 10:22 AM, Mark Rutland wrote:
> Typically VFIO-platform also comes with a corresponding reset driver.
> You don't need one?
Digging this further, I do need a HIDMA reset driver. The reset driver is useful if HIDMA
operation is aborted in the middle and guest machine is shutdown.
I'm preparing a reset driver and I'll post it soon.
In the meantime, I have observed a lack of ACPI HID support in the platform reset interface
vfio_platform_lookup_reset and vfio_platform_probe_common specifically.
The interface is querying objects with "compatible" string. Of course on a true ACPI system
with proper named HIDs except PRP001, "compatible" attribute does not exist. I'm also preparing a
patch for this too.
Since VFIO patches go through another branch and the reset driver also needs to go through vfio along
with the ACPI object querying support, would you like this to be addressed independently with a different series
or have it reviewed altogether here then figure out the merge path later?
--
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:[~2016-01-22 18:38 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
2016-01-18 9:06 ` Marc Zyngier
2016-01-22 18:38 ` Sinan Kaya [this message]
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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