From: Sergei Shtylyov <sergei.shtylyov-M4DtvfQ/ZS1MRgGoP+s0PdBPR1lH4CV8@public.gmane.org>
To: Alexandre Bailon
<abailon-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>,
vinod.koul-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org
Cc: dmaengine-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
nsekhar-l0cyMroinI0@public.gmane.org,
khilman-rdvid1DuHRBWk0Htik3J/w@public.gmane.org,
ptitiano-rdvid1DuHRBWk0Htik3J/w@public.gmane.org,
tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org,
linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
b-liu-l0cyMroinI0@public.gmane.org
Subject: Re: [PATCH 09/11] dmaengine: cppi41: Fix a race between PM runtime and channel abort
Date: Tue, 10 Jan 2017 20:55:32 +0300 [thread overview]
Message-ID: <0a79aade-ff5d-d449-5dc5-b81491c96fd0@cogentembedded.com> (raw)
In-Reply-To: <20170109160656.3470-10-abailon-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
On 01/09/2017 07:06 PM, Alexandre Bailon wrote:
> cppi41_dma_issue_pending() may be called while the device is runtime
> suspended. In that case, the descritpor will be push to the pending
"Descriptor" and "pushed".
> list and then be queued to hardware queue.
> But if cppi41_stop_chan() is called before the device got time to
> resume, then the descriptor will remain in the pending list and be
> queued to hardware queue after the teardown.
> During the channel stop, check if there is a pendding descriptor
Pending.
> and if so, remove it.
>
> Signed-off-by: Alexandre Bailon <abailon-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
[...]
MBR, Sergei
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next prev parent reply other threads:[~2017-01-10 17:55 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-09 16:06 [PATCH 00/11] dmaengine: cppi41: Add dma support to da8xx Alexandre Bailon
[not found] ` <20170109160656.3470-1-abailon-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
2017-01-09 16:06 ` [PATCH 01/11] dmaengine: cppi41: rename platform variables Alexandre Bailon
[not found] ` <20170109160656.3470-2-abailon-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
2017-01-10 17:35 ` Sergei Shtylyov
2017-01-09 16:06 ` [PATCH 02/11] dmaengine: cppi41: Split out the interrupt handler Alexandre Bailon
[not found] ` <20170109160656.3470-3-abailon-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
2017-01-10 17:39 ` Sergei Shtylyov
2017-01-09 16:06 ` [PATCH 03/11] dmaengine: cppi41: Move some constants to glue layer Alexandre Bailon
2017-01-09 16:06 ` [PATCH 04/11] dmaengine: cppi41: init_sched(): Get number of channels from DT Alexandre Bailon
2017-01-09 16:06 ` [PATCH 05/11] dmaengine: cppi41: Add a way to test if the driver is running on am335x Alexandre Bailon
2017-01-09 16:06 ` [PATCH 06/11] dmaengine: cppi41: Only configure am335x's registers on amm335x platform Alexandre Bailon
2017-01-09 16:06 ` [PATCH 07/11] dt/bindings: da8xx-usb: Add binding for the cppi41 dma controller Alexandre Bailon
[not found] ` <20170109160656.3470-8-abailon-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
2017-01-09 18:41 ` Sergei Shtylyov
[not found] ` <6ae72fe4-ddb7-4dfc-8c8c-29b63636171b-M4DtvfQ/ZS1MRgGoP+s0PdBPR1lH4CV8@public.gmane.org>
2017-01-10 10:37 ` Alexandre Bailon
2017-01-09 16:06 ` [PATCH 08/11] dmaengine: cppi41: Implement the glue for da8xx Alexandre Bailon
[not found] ` <20170109160656.3470-9-abailon-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
2017-01-09 18:08 ` Grygorii Strashko
[not found] ` <fbc7f9f3-9b14-bc7f-0b40-15a6fedd48ea-l0cyMroinI0@public.gmane.org>
2017-01-10 9:38 ` Alexandre Bailon
[not found] ` <b3f902e0-ed08-dbee-52b8-e81afda082ac-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
2017-01-10 10:05 ` Sekhar Nori
[not found] ` <53a40635-2652-64fc-b20d-1cd6d813eacb-l0cyMroinI0@public.gmane.org>
2017-01-10 15:22 ` Alexandre Bailon
[not found] ` <43b9585d-a22f-a2ff-15d4-5d878bd1586a-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
2017-01-10 15:49 ` Tony Lindgren
[not found] ` <20170110154929.GU2630-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2017-01-11 9:35 ` Sekhar Nori
2017-01-11 9:16 ` Alexandre Bailon
2017-01-10 17:53 ` Sergei Shtylyov
[not found] ` <2d8b3a2b-859d-bfda-74cf-f22471927fc4-M4DtvfQ/ZS1MRgGoP+s0PdBPR1lH4CV8@public.gmane.org>
2017-01-11 9:24 ` Alexandre Bailon
2017-01-09 16:06 ` [PATCH 09/11] dmaengine: cppi41: Fix a race between PM runtime and channel abort Alexandre Bailon
[not found] ` <20170109160656.3470-10-abailon-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
2017-01-10 17:55 ` Sergei Shtylyov [this message]
2017-01-09 16:06 ` [PATCH 10/11] dmaengine: cppi41: Fix da8xx interrupt issue Alexandre Bailon
2017-01-09 16:06 ` [PATCH 11/11] dmaengine: cppi41: Fix teardown warnings Alexandre Bailon
[not found] ` <20170109160656.3470-12-abailon-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
2017-01-09 18:46 ` Sergei Shtylyov
[not found] ` <72228045-8c2d-3ea4-3fbb-00477b47a80b-M4DtvfQ/ZS1MRgGoP+s0PdBPR1lH4CV8@public.gmane.org>
2017-01-10 11:11 ` Alexandre Bailon
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