[PATCH 03/18] powerpc: Add PREFIXED SRR1 bit for future ISA version

Jordan Niethe jniethe5 at gmail.com
Fri Dec 20 16:09:17 AEDT 2019


On Wed, Dec 18, 2019 at 7:23 PM Daniel Axtens <dja at axtens.net> wrote:
>
> Jordan Niethe <jniethe5 at gmail.com> writes:
>
> > Add the bit definition for exceptions caused by prefixed instructions.
> >
> > Signed-off-by: Jordan Niethe <jniethe5 at gmail.com>
> > ---
> >  arch/powerpc/include/asm/reg.h | 1 +
> >  1 file changed, 1 insertion(+)
> >
> > diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
> > index 6f9fcc3d4c82..0a6d39fb4769 100644
> > --- a/arch/powerpc/include/asm/reg.h
> > +++ b/arch/powerpc/include/asm/reg.h
> > @@ -778,6 +778,7 @@
> >
> >  #define   SRR1_MCE_MCP               0x00080000 /* Machine check signal caused interrupt */
> >  #define   SRR1_BOUNDARY              0x10000000 /* Prefixed instruction crosses 64-byte boundary */
> > +#define   SRR1_PREFIXED              0x20000000 /* Exception caused by prefixed instruction */
>
> You could probably squash this with the previous patch, and maybe the
> next patch too.
>
> Regards,
> Daniel
>
> >
> >  #define SPRN_HSRR0   0x13A   /* Save/Restore Register 0 */
> >  #define SPRN_HSRR1   0x13B   /* Save/Restore Register 1 */
> > --
> > 2.20.1
Thanks, good idea.


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