[OpenBIOS] [PATCH] ppc: Use mtmsrd on ppc64

[Alexander Graf]

On 16.11.2010, at 00:25, Andreas Färber wrote:

> Cc: Alexander Graf <agraf at suse.de>
> Signed-off-by: Andreas Färber <andreas.faerber at web.de>
> ---
> arch/ppc/qemu/ofmem.c |    8 +++++++-
> 1 files changed, 7 insertions(+), 1 deletions(-)
> 
> diff --git a/arch/ppc/qemu/ofmem.c b/arch/ppc/qemu/ofmem.c
> index 9c60841..e8b0b24 100644
> --- a/arch/ppc/qemu/ofmem.c
> +++ b/arch/ppc/qemu/ofmem.c
> @@ -25,6 +25,12 @@
> 
> #define BIT(n)		(1U<<(31-(n)))
> 
> +#ifdef __powerpc64__
> +#define MTMSR "mtmsrd"
> +#else
> +#define MTMSR "mtmsr"
> +#endif
> +
> /* called from assembly */
> extern void dsi_exception( void );
> extern void isi_exception( void );
> @@ -417,7 +423,7 @@ setup_mmu( unsigned long ramsize )
> 
> 	asm volatile("mfmsr %0" : "=r" (msr) : );
> 	msr |= MSR_IR | MSR_DR;
> -	asm volatile("mtmsr %0" :: "r" (msr) );
> +	asm volatile(MTMSR " %0" :: "r" (msr) );

Is that the only occurence of mtmsr in all the code? Better replace all at once or you'll be chasing bugs later on :).


Alex