27 Sep
2012
27 Sep
'12
3:25 p.m.
On 09/27/2012 03:59 PM, Mark Brown wrote:
On Thu, Sep 27, 2012 at 03:16:45PM +0300, Peter Ujfalusi wrote:
Can someone try linux-next on non OMAP platform to see if dma_alloc_writecombine() works there?
Meanwhile I'll try to find the reason why it fails for me.
Do you have CMA enabled? There seems to be some breakage there for me on Samsung platforms, I saw this affecting all DMA users yesterday along with some other CMA related issues but didn't analyse it enough to report it.
I do had CMA enabled (not sure why) It has been enabled in my config for a long time. Without CONFIG_CMA all is fine.
Thank you, Péter