Re: [PATCH 1/1] crypto: omap-sham: Adjust DMA parameters

2010-09-03 Thread Herbert Xu
On Thu, Sep 02, 2010 at 05:17:35PM +0300, Dmitry Kasatkin wrote: > From: Samu Onkalo > > DMA is set to use burst mode also for source channel. It should > descrease memory bandwidth needs. > > DMA synchronization is set to use prefetch mechanism. SHAM block is behind > L4 bus and it doesn't have

[PATCH 1/1] crypto: omap-sham: Adjust DMA parameters

2010-09-02 Thread Dmitry Kasatkin
From: Samu Onkalo DMA is set to use burst mode also for source channel. It should descrease memory bandwidth needs. DMA synchronization is set to use prefetch mechanism. SHAM block is behind L4 bus and it doesn't have fifo. SHAM block is stalling as long as the new data is available. It takes ti