[alsa-devel] ASoC on today's linux-next: dma_alloc_writecombine() failing at least on OMAP platforms
Hello,
I tried today's linux-next on OMAP platform and audio is not probing because dma_alloc_writecombine() fails to get the area. My linux-next from two days ago works OK and I don't see anything directly connected to OMAP which can cause this failure.
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.
Thanks, Péter
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.
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
participants (2)
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Mark Brown -
Peter Ujfalusi