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Groups > linux.kernel > #1416851
| From | Vinod Koul <vinod.koul@intel.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] dmaengine: edma: Use early completion for intermediate paRAM set in slave_sg |
| Date | 2016-06-08 05:30 +0200 |
| Message-ID | <rHClP-336-9@gated-at.bofh.it> (permalink) |
| References | <rHkyC-k2-15@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Tue, Jun 07, 2016 at 11:19:44AM +0300, Peter Ujfalusi wrote: > The driver limits the physical number of paRAM slots to be used by channels. > If the transfer needs more slots (more SGs) then the transfer is broken up > to smaller chunks. When the chunk is finished the driver will rewrite the > physical slots and continues the transfer. This set up time can take some > time and we might miss DMA events. If the intermediate set completion is > using early completion (the interrupt will happen when the last slot is > issued to the TPTC and not when the transfer is finished by the TPTC) we > will have a bit more time to update the paRAM slots and less likely to have > missed events. Applied, thanks -- ~Vinod
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[PATCH] dmaengine: edma: Use early completion for intermediate paRAM set in slave_sg Peter Ujfalusi <peter.ujfalusi@ti.com> - 2016-06-07 10:30 +0200 Re: [PATCH] dmaengine: edma: Use early completion for intermediate paRAM set in slave_sg Vinod Koul <vinod.koul@intel.com> - 2016-06-08 05:30 +0200
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