Le 19/09/2022 à 16:01, Nicholas Piggin a écrit : > A later change stops the kernel using r2 and loads it with a poison > value. Provide a PACATOC loading abstraction which can hide this > detail. > > XXX: 64e, KVM, ftrace not entirely done > > Signed-off-by: Nicholas Piggin <npig...@gmail.com> > --- > arch/powerpc/include/asm/ppc_asm.h | 3 +++ > arch/powerpc/kernel/exceptions-64e.S | 4 ++-- > arch/powerpc/kernel/exceptions-64s.S | 6 +++--- > arch/powerpc/kernel/head_64.S | 4 ++-- > arch/powerpc/kernel/interrupt_64.S | 12 ++++++------ > arch/powerpc/kernel/optprobes_head.S | 2 +- > arch/powerpc/kernel/trace/ftrace_mprofile.S | 4 ++-- > arch/powerpc/platforms/powernv/opal-wrappers.S | 2 +- > 8 files changed, 20 insertions(+), 17 deletions(-) > > diff --git a/arch/powerpc/include/asm/ppc_asm.h > b/arch/powerpc/include/asm/ppc_asm.h > index 520c4c9caf7f..c0848303151c 100644 > --- a/arch/powerpc/include/asm/ppc_asm.h > +++ b/arch/powerpc/include/asm/ppc_asm.h > @@ -374,6 +374,9 @@ GLUE(.,name): > > #ifdef __powerpc64__ > > +#define LOAD_PACA_TOC() \ > + ld r2,PACATOC(r13) > +
Wouldn't it be better as a GAS macro ?
