On Wed, 12 Nov 2008 13:02:43 +1100 Benjamin Herrenschmidt <[EMAIL PROTECTED]> wrote:
> Those cores use the 440A type machine check (ie, they have > MCSRR0/MCSRR1). They thus need to call the appropriate fixup > function to hook the right variant of the exception. > > Without this, all machine checks become fatal due to loss > of context when entering the exception handler. Looks fine to me. However, what machine checks were you getting that caused you to see this that aren't fatal anyway? josh > > Signed-off-by: Benjamin Herrenschmidt <[EMAIL PROTECTED]> > --- > > arch/powerpc/kernel/cpu_setup_44x.S | 7 ++++++- > 1 file changed, 6 insertions(+), 1 deletion(-) > > --- linux-work.orig/arch/powerpc/kernel/cpu_setup_44x.S 2008-11-12 > 12:51:24.000000000 +1100 > +++ linux-work/arch/powerpc/kernel/cpu_setup_44x.S 2008-11-12 > 13:01:03.000000000 +1100 > @@ -34,7 +34,12 @@ _GLOBAL(__setup_cpu_440grx) > blr > _GLOBAL(__setup_cpu_460ex) > _GLOBAL(__setup_cpu_460gt) > - b __init_fpu_44x > + mflr r4 > + bl __init_fpu_44x > + bl __fixup_440A_mcheck > + mtlr r4 > + blr > + > _GLOBAL(__setup_cpu_440gx) > _GLOBAL(__setup_cpu_440spe) > b __fixup_440A_mcheck _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
