On Aug 6, 2008, at 3:17 PM, Wolfgang Denk wrote:
In message <9D199630-11FA-4028-8EE6- CBC59F6F67A0@kernel.crashing.org> you wrote:
Good point. Why don't we factor this out and make it common code for all PPC?
Because the relocation is specific to the various interrupt types. Book-E will need different code for handing IVPR/IVORs than classic.
Umm... the exception code itself may be different, but does this imply that the code used to copy / relocate the exception handlers to low mem must be different, too?
the copying bit should be do-able in generic code.
74xx_7xx/mpc512x/mpc5xx/mpc8xx/mpc8220/mpc824x/mpc83xx/mpc86xx:
copy from [_start, _end_of_vectors] to 0x100
4xx/85xx:
copy from [_start_of_vectors, _end_of_vectors] to 0x100
Maybe. But then, these can use exception vectors at low mem, too, right?
They can, but it has to be setup.
What is Linux doing?
don't follow the question.. what is linux doing with what?
- k