On Thu, 2013-06-20 at 18:28 +0800, Tiejun Chen wrote: > We always alloc critical/machine/debug check exceptions. This is > different from the normal exception. So we should load these exception > stack properly like we did for booke. > > Signed-off-by: Tiejun Chen <tiejun.c...@windriver.com> > --- > arch/powerpc/kernel/exceptions-64e.S | 49 > +++++++++++++++++++++++++++++++--- > 1 file changed, 46 insertions(+), 3 deletions(-) > > diff --git a/arch/powerpc/kernel/exceptions-64e.S > b/arch/powerpc/kernel/exceptions-64e.S > index 4b23119..4d8e57f 100644 > --- a/arch/powerpc/kernel/exceptions-64e.S > +++ b/arch/powerpc/kernel/exceptions-64e.S > @@ -36,6 +36,37 @@ > */ > #define SPECIAL_EXC_FRAME_SIZE INT_FRAME_SIZE > > +/* only on book3e */ > +#define DBG_STACK_BASE dbgirq_ctx > +#define MC_STACK_BASE mcheckirq_ctx > +#define CRIT_STACK_BASE critirq_ctx > + > +#ifdef CONFIG_RELOCATABLE > +#define LOAD_STACK_BASE(reg, level) \ > + tovirt(r2,r2); \ > + LOAD_REG_ADDR(reg, level##_STACK_BASE);
Where does r2 come from here, where does it get used, and why do we need tovirt() on book3e? -Scott _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
