[PATCH] powerpc: merged asm/cputable.h
michael at ellerman.id.au
Tue Sep 27 09:05:24 EST 2005
On Tue, 27 Sep 2005 08:45, Benjamin Herrenschmidt wrote:
> On Mon, 2005-09-26 at 11:57 +1000, Michael Ellerman wrote:
> > Here's a version of my patch updated to apply on top of the merge tree.
> > It'll be a lot cleaner when ppc32 has a single cur_cpu_spec, as we'll
> > be able to remove a lot of the #ifdefs.
> There is a small issue here: You turn identify_cpu into C code. However,
> on ppc32, this is called with the kernel not yet relocated (before
> prom_init even !). Same with the feature fixup. On ppc32, in order to
> run C code that early, it needs to be in -mrelocatable bits of code
> (like prom_init) or use RELOC macros (ugh !).
We could keep the bulk of the patch (turn cur_cpu_spec into a struct) but
still do identify_cpu() in asm, although it would seem like a step backward.
Do people think it's "better" to have one unified asm implementation, or one
in asm for ppc32 and one in C for ppc64?
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