[uClinux-dev] Re: soft_irq()

Miles Bader miles at lsi.nec.co.jp
Mon Mar 24 20:56:41 EST 2003


John Williams <jwilliams at itee.uq.edu.au> writes:
>   This means that only certain register values in the resulting ptregs 
> struct seen by the kernel are valid.  Is this an issue, or is so little 
> done with the ptregs in the kernel that it doesn't really matter?

If you look at the uses of the registers by the timer interrupt, there are
(at least on the v850) only two fields used -- the kernel-mode/user-mode
flag which is alright that's always set, and the PC, for profiling, which
again is always saved.

-Miles
-- 
Suburbia: where they tear out the trees and then name streets after them.



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