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SubjectRe: [PATCH 7/8] ppc64: SPU file system

> /run A stub file that lets us do ioctl. The only ioctl
> method we need is the spu_run() call. spu_run suspends
> the current thread from the host CPU and transfers
> the flow of execution to the SPU.
> The ioctl call return to the calling thread when a state
> is entered that can not be handled by the kernel, e.g.
> an error in the SPU code or an exit() from it.
> When a signal is pending for the host CPU thread, the
> ioctl is interrupted and the SPU stopped in order to
> call the signal handler.

ioctl's are generally considered evil ... what about a write() method
writing a command ?


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