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Re: Choppy audio playback

On Fri, Mar 14, 2008 at 10:14:07AM +0000, Andrew Doran wrote:
> Which audio drivers do these systems use? I think it is a change I made to a
> driver to use a soft interrupt to trigger DMA. The alternative was to make
> the driver MP safe since the device interrupt was above IPL_VM.

Both use CS 4231A / AD 1848:

U2:     audiocs0 at sbus0 slot 13 offset 0xc000000 vector 24 ipl 8: CS4231A
Krups:  audiocs0 at ebus0 bar 14 offset 0x200000 line 3: CS4231A

Can individual audio drivers be made MP safe yet?


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