On Mon, May 10, 2010 at 2:26 AM, Dan Williams wrote:
> On Sun, May 9, 2010 at 3:06 AM, jassi brar wrote:
>> This discussion is purely about what the current DMA API misses and what
>> a generic DMA API should do. So, that the current DMA API fills up those
>> gap, if possible. I would love to get
On Sun, May 9, 2010 at 3:06 AM, jassi brar wrote:
> This discussion is purely about what the current DMA API misses and what
> a generic DMA API should do. So, that the current DMA API fills up those
> gap, if possible. I would love to get started implementing the generic
> DMA API for reference b
On Sun, May 9, 2010 at 4:47 PM, Dan Williams wrote:
> On Sat, May 8, 2010 at 8:48 PM, jassi brar wrote:
>> On Sun, May 9, 2010 at 7:24 AM, Dan Williams
>> wrote:
>>> On Fri, May 7, 2010 at 7:37 PM, jassi brar wrote:
IMHO, a DMA api should be as quick as possible - callbacks done in IRQ
On Sat, May 8, 2010 at 8:48 PM, jassi brar wrote:
> On Sun, May 9, 2010 at 7:24 AM, Dan Williams wrote:
>> On Fri, May 7, 2010 at 7:37 PM, jassi brar wrote:
>>> IMHO, a DMA api should be as quick as possible - callbacks done in IRQ
>>> context.
>>> But since there maybe clients that need to d
On Sun, May 9, 2010 at 7:24 AM, Dan Williams wrote:
> On Fri, May 7, 2010 at 7:37 PM, jassi brar wrote:
>> IMHO, a DMA api should be as quick as possible - callbacks done in IRQ
>> context.
>> But since there maybe clients that need to do sleepable stuff in
>
> None of the current clients slee
On Fri, May 7, 2010 at 7:37 PM, jassi brar wrote:
> On Sat, May 8, 2010 at 1:10 AM, Linus Walleij
> wrote:
>> Surely circular linked buffers and other goodies can be retrofitted into the
>> DMAengine without a complete redesign? I only see a new slave call
>> to support that really, in addition t
On Sat, May 8, 2010 at 1:10 AM, Linus Walleij
wrote:
> Surely circular linked buffers and other goodies can be retrofitted into the
> DMAengine without a complete redesign? I only see a new slave call
> to support that really, in addition to the existing sglist interface.
well, before taking up th
On Fri, May 7, 2010 at 4:43 AM, Linus Walleij
wrote:
> 2010/5/7 Russell King - ARM Linux :
>
>> I would have thought given the concerns that I stated, merely running
>> the drivers in PIO mode would not address those concerns. So no, I'm
>> not satisfied.
>
> Sorry didn't get it, I understood it
2010/5/7 jassi brar :
> On Fri, May 7, 2010 at 8:43 PM, Linus Walleij
> wrote:
>> 2010/5/7 Russell King - ARM Linux :
>>>
>>> Or let me put it another way - if people are happy for Linux to support
>>> new ARM CPU architectures, but with very little attention given to DMA
>>> support on those arch
On Fri, May 7, 2010 at 8:43 PM, Linus Walleij
wrote:
> 2010/5/7 Russell King - ARM Linux :
>> Or let me put it another way - if people are happy for Linux to support
>> new ARM CPU architectures, but with very little attention given to DMA
>> support on those architectures, then feel free to box t
2010/5/7 Russell King - ARM Linux :
> I would have thought given the concerns that I stated, merely running
> the drivers in PIO mode would not address those concerns. So no, I'm
> not satisfied.
Sorry didn't get it, I understood it as it should be tested on the Versatile
without regressions.
S
On Fri, May 07, 2010 at 11:13:57AM +0200, Linus Walleij wrote:
> Dan is this patch set OK?
>
> Sorry if you're busy, just need to check...
>
> Patches 1 thru 4 should be uncontroversial, only affects
> our ST-Ericsson platforms and have been thorougly reviewed.
>
> As posted elsewhere this is te
Dan is this patch set OK?
Sorry if you're busy, just need to check...
Patches 1 thru 4 should be uncontroversial, only affects
our ST-Ericsson platforms and have been thorougly reviewed.
As posted elsewhere this is tested on an ARM reference
design now as well, which IMHO would make it OK to app
This patch set intended for Dan Williams tree includes:
- A fixed up COH 901 318 PrimeCell extension (unless applied
to your tree already)
- Two DMA40 bug fixes.
- The latest iteration of the PrimeCell DMA extensions,
altered and tested to work as Russell wants them. The PL011
driver was tes
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