Linus Torvalds wrote:
>
> On Thu, 26 Apr 2007, Pavel Machek wrote:
>> Ok, I guess I'll have nightmares of DMA controllers doing DMAs from
>> chips that are no longer there tonight.
>
> Umm. Welcome to the 21st century: we don't do that "separate DMA
> controller" thing any more. All devices do their own DMA.
>
That was the 1990s. On a brand new server system:
00:08.0 System peripheral: Intel Corporation 5000 Series Chipset DMA
Engine (rev b1)
For better or worse, slave DMA seems to be making a comeback of sorts.
Not to mention all kinds of embedded crap^Whardware with optimized DMA
engines which look nothing like PCI at all.
-hpa
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