On 2 July 2011 21:37, Arnd Bergmann arnd@arndb.de wrote:
On Saturday 02 July 2011 14:29:38 Russell King - ARM Linux wrote:
One other thing to be considered here is whether this idea should be limited to just MMC or whether it should be extended further, to move the DMA mapping stuff out of the hot path for other block devices too.
There are ARM systems with SATA which do 28MB/s - which could be improved by this technique.
Excellent point. We had discussed SATA items in the context of Linaro work before, and the conclusion was always that we wouldn't need to do any work for it in the common code. I'll make sure that we bring it up at the meeting next month in Cambridge so we can officially assign someone to do this.
Arnd, do you know if any of the Linaro boards have SATA?
Regards, Per