Booting Imac G5

Segher Boessenkool segher at
Tue Nov 23 23:35:26 EST 2004

> They may use the SPU interface to access the RAM.  But, in fact, 
> looking
> at the OF SMU driver, I should have been warned about the cache issue:
> this routine is quite clear:
> : clr-cache-lines
>    cmd-buf ^dcbf ^sync  ;

Well yes, but Apple OF tends to use very heavy hammers for no
reason at all, all of the time ;-)

I'd really like to _understand_ the issue -- although that's
not necessary at all for programming the driver, of course,
monkey-see, monkey-do worked fine for all the other Mac
drivers ;-P


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