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Groups > linux.kernel > #1294445
| From | Vinod Koul <vinod.koul@intel.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH V2] dmaengine: mdc: Correct terminate_all handling |
| Date | 2015-12-18 06:50 +0100 |
| Message-ID | <qGW5s-1ug-27@gated-at.bofh.it> (permalink) |
| References | <qGW5s-1ug-29@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Thu, Dec 10, 2015 at 03:07:23PM +0000, Damien Horsley wrote: > From: "Damien.Horsley" <Damien.Horsley@imgtec.com> > > Use of the CANCEL bit in mdc_terminate_all creates an > additional 'command done' to appear in the registers (in > addition to an interrupt). > > In addition, there is a potential race between > mdc_terminate_all and the irq handler if a transfer > completes at the same time as the terminate all (presently > this results in an inappropriate warning). > > To handle these issues, any outstanding 'command done' > events are cleared during mdc_terminate_all and the irq > handler takes no action when there are no new 'command done' > events. Applied, thanks -- ~Vinod -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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Re: [PATCH V2] dmaengine: mdc: Correct terminate_all handling Vinod Koul <vinod.koul@intel.com> - 2015-12-18 06:50 +0100
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