On 8/2/2013 1:58 AM, Joel Fernandes wrote:
On 08/01/2013 01:13 AM, Sekhar Nori wrote:
On Thursday 01 August 2013 07:57 AM, Joel Fernandes wrote:
On 07/31/2013 04:18 AM, Sekhar Nori wrote:
On Wednesday 31 July 2013 10:19 AM, Joel Fernandes wrote:
Hi Sekhar,
On 07/30/2013 02:05 AM, Sekhar
Hi Sekhar,
Thanks for your detailed illustrations.
On 08/02/2013 08:26 AM, Sekhar Nori wrote:
[..]
This can be used only for buffers that are contiguous in memory, not
those that are scattered across memory.
I was hinting at using the linking facility of EDMA to achieve this.
Each PaRAM set
Hi Sekhar,
Considering you agree with my understanding of the approach you proposed,
I worked on some code to quickly try the different approach (ping-pong)
between sets, here is a hack patch:
https://github.com/joelagnel/linux-kernel/commits/dma/edma-no-sg-limits-interleaved
As I suspected it
On Thursday 01 August 2013 07:57 AM, Joel Fernandes wrote:
On 07/31/2013 04:18 AM, Sekhar Nori wrote:
On Wednesday 31 July 2013 10:19 AM, Joel Fernandes wrote:
Hi Sekhar,
On 07/30/2013 02:05 AM, Sekhar Nori wrote:
On Monday 29 July 2013 06:59 PM, Joel Fernandes wrote:
In an effort to move
On 08/01/2013 01:13 AM, Sekhar Nori wrote:
On Thursday 01 August 2013 07:57 AM, Joel Fernandes wrote:
On 07/31/2013 04:18 AM, Sekhar Nori wrote:
On Wednesday 31 July 2013 10:19 AM, Joel Fernandes wrote:
Hi Sekhar,
On 07/30/2013 02:05 AM, Sekhar Nori wrote:
On Monday 29 July 2013 06:59 PM,
Just some corrections here..
On 08/01/2013 03:28 PM, Joel Fernandes wrote:
2. If the interrupt handler for some reason doesn't complete or get
service in time, we will end up DMA'ing incorrect data as events
wouldn't stop coming in even if interrupt is not yet handled (in your
example linked
On Wednesday 31 July 2013 10:19 AM, Joel Fernandes wrote:
Hi Sekhar,
On 07/30/2013 02:05 AM, Sekhar Nori wrote:
On Monday 29 July 2013 06:59 PM, Joel Fernandes wrote:
In an effort to move to using Scatter gather lists of any size with
EDMA as discussed at [1] instead of placing limitations
On 07/31/2013 04:18 AM, Sekhar Nori wrote:
On Wednesday 31 July 2013 10:19 AM, Joel Fernandes wrote:
Hi Sekhar,
On 07/30/2013 02:05 AM, Sekhar Nori wrote:
On Monday 29 July 2013 06:59 PM, Joel Fernandes wrote:
In an effort to move to using Scatter gather lists of any size with
EDMA as
On 07/31/2013 09:27 PM, Joel Fernandes wrote:
On 07/31/2013 04:18 AM, Sekhar Nori wrote:
On Wednesday 31 July 2013 10:19 AM, Joel Fernandes wrote:
Hi Sekhar,
On 07/30/2013 02:05 AM, Sekhar Nori wrote:
On Monday 29 July 2013 06:59 PM, Joel Fernandes wrote:
In an effort to move to using
On 07/31/2013 09:27 PM, Joel Fernandes wrote:
On 07/31/2013 04:18 AM, Sekhar Nori wrote:
On Wednesday 31 July 2013 10:19 AM, Joel Fernandes wrote:
Hi Sekhar,
On 07/30/2013 02:05 AM, Sekhar Nori wrote:
On Monday 29 July 2013 06:59 PM, Joel Fernandes wrote:
In an effort to move to using
Hi Sekhar,
On 07/30/2013 02:05 AM, Sekhar Nori wrote:
On Monday 29 July 2013 06:59 PM, Joel Fernandes wrote:
In an effort to move to using Scatter gather lists of any size with
EDMA as discussed at [1] instead of placing limitations on the driver,
we work through the limitations of the EDMAC
In an effort to move to using Scatter gather lists of any size with
EDMA as discussed at [1] instead of placing limitations on the driver,
we work through the limitations of the EDMAC hardware to find missed
events and issue them.
The sequence of events that require this are:
For the scenario
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