[Cbe-oss-dev] [PATCH] spufs: Avoid restarting MFC in context saving

Kazunori Asayama asayama at sm.sony.co.jp
Wed Jul 4 15:49:06 EST 2007


Jeremy Kerr <jk at ozlabs.org> wrote:
> 
> > I think that such an operation is nonsense; I understand that if we
> > don't want to change the MFC operation state, the Sm bit must be set
> > every time we write values to the register.
> 
> Ahh, I see what you're doing - using the Sm bit to preserve the MFC 
> status *for that particular write*, rather than doing an inb(), or-ing 
> the new value in, then outb().

Right!

--
(ASAYAMA Kazunori
  (asayama at sm.sony.co.jp))
t



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