[PATCH] [POWERPC] Wire up some more syscalls

Kumar Gala galak at kernel.crashing.org
Mon May 14 23:58:47 EST 2007


On May 13, 2007, at 11:15 PM, David Woodhouse wrote:

> On Sun, 2007-05-13 at 22:55 -0500, Kumar Gala wrote:
>> Just out of interest, what makes a syscall COMPAT_SYS_SPU vs
>> SYSCALL_SPU?
>
> It's the same as the difference between COMPAT_SYS and SYSCALL.
>
> The _SPU suffix just means that the SPU can use the (native) syscall.
>
> The COMPAT_ prefix means that there's a compat function to call  
> instead
> of calling the native one directly for 32-bit code.


The COMPAT I get, but what does it mean to be able to use a syscall  
on SPU natively?  When wouldn't you be able to do this?

- k



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