[PATCH][RFC] fsldma: fix performance degradation by optimizing spinlock use.

[Tabi Timur-B04825]

On Tue, Nov 29, 2011 at 11:25 AM, Ira W. Snyder <iws at ovro.caltech.edu> wrote:

> I believe that you are correct, for powerpc. However, anything outside
> of arch/powerpc shouldn't assume it only runs on powerpc. I wouldn't be
> surprised to see fsldma running on an iMX someday (ARM processor).

I certainly would.  The i.MX chips have their own DMA controller.  The
DMA controller that fsldma.c works with is unique to Freescale's 83xx,
85xx, and QorIQ chips.

-- 
Timur Tabi
Linux kernel developer at Freescale