Fix pseries hcall functions

[Alan Modra]

On Mon, Feb 07, 2005 at 02:44:18PM +1100, Anton Blanchard wrote:
>  _GLOBAL(plpar_hcall)
>  	mfcr	r0

Do you really need to save cr?  ie. Does the hypervisor call trash
cr2, cr3 or cr4?

>  _GLOBAL(plpar_hcall_4out)
>  	mfcr	r0
> -	std	r0,-8(r1)
> -	ld      r14,112(r1)
> -	stdu	r1,-48(r1) 
> -
> -	std     r8,32(r1)       /* Save out ptrs. */
> -	std     r9,24(r1)
> -	std     r10,16(r1)
> -	std     r14,8(r1)
> -	
> -	HVSC                    /* invoke the hypervisor */
> +	std	r0,8(r1)

stw here.

-- 
Alan Modra
IBM OzLabs - Linux Technology Centre