Re: [OpenRISC] [PATCH 01/13] openrisc: use shadow registers to save regs on exception

[Geert Uytterhoeven]

On Wed, Aug 30, 2017 at 11:58 PM, Stafford Horne <shorne@xxxxxxxxx> wrote:
> --- a/arch/openrisc/Kconfig
> +++ b/arch/openrisc/Kconfig
> @@ -121,6 +121,16 @@ config OPENRISC_NO_SPR_SR_DSX
>           Say N here if you know that your OpenRISC processor has
>           SPR_SR_DSX bit implemented. Say Y if you are unsure.
>
> +config OPENRISC_HAVE_SHADOW_GPRS
> +       bool "Support for shadow gpr files"

default y if SMP?

> +       help
> +         Say Y here if your OpenRISC processor features shadowed
> +         register files. They will in such case be used as a
> +         scratch reg storage on exception entry.
> +
> +         On SMP systems, this feature is mandatory.
> +         On a unicore system it's safe to say N here if you are unsure.
> +

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds