Re: [kvm-unit-tests PATCH v1 2/4] s390x: lib: Move stsi_get_fc to library

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On Mon,  9 Aug 2021 10:48:52 +0200
Pierre Morel <pmorel@xxxxxxxxxxxxx> wrote:

> It's needed in multiple tests now.
> 
> Signed-off-by: Pierre Morel <pmorel@xxxxxxxxxxxxx>

Reviewed-by: Claudio Imbrenda <imbrenda@xxxxxxxxxxxxx>

> ---
>  lib/s390x/asm/arch_def.h | 16 ++++++++++++++++
>  s390x/stsi.c             | 16 ----------------
>  2 files changed, 16 insertions(+), 16 deletions(-)
> 
> diff --git a/lib/s390x/asm/arch_def.h b/lib/s390x/asm/arch_def.h
> index 15cf7d48..57d7ddac 100644
> --- a/lib/s390x/asm/arch_def.h
> +++ b/lib/s390x/asm/arch_def.h
> @@ -328,6 +328,22 @@ static inline int stsi(void *addr, int fc, int
> sel1, int sel2) return cc;
>  }
>  
> +static inline unsigned long stsi_get_fc(void *addr)
> +{
> +	register unsigned long r0 asm("0") = 0;
> +	register unsigned long r1 asm("1") = 0;
> +	int cc;
> +
> +	asm volatile("stsi	0(%[addr])\n"
> +		     "ipm	%[cc]\n"
> +		     "srl	%[cc],28\n"
> +		     : "+d" (r0), [cc] "=d" (cc)
> +		     : "d" (r1), [addr] "a" (addr)
> +		     : "cc", "memory");
> +	assert(!cc);
> +	return r0 >> 28;
> +}
> +
>  static inline int servc(uint32_t command, unsigned long sccb)
>  {
>  	int cc;
> diff --git a/s390x/stsi.c b/s390x/stsi.c
> index 87d48047..11986d13 100644
> --- a/s390x/stsi.c
> +++ b/s390x/stsi.c
> @@ -71,22 +71,6 @@ static void test_priv(void)
>  	report_prefix_pop();
>  }
>  
> -static inline unsigned long stsi_get_fc(void *addr)
> -{
> -	register unsigned long r0 asm("0") = 0;
> -	register unsigned long r1 asm("1") = 0;
> -	int cc;
> -
> -	asm volatile("stsi	0(%[addr])\n"
> -		     "ipm	%[cc]\n"
> -		     "srl	%[cc],28\n"
> -		     : "+d" (r0), [cc] "=d" (cc)
> -		     : "d" (r1), [addr] "a" (addr)
> -		     : "cc", "memory");
> -	assert(!cc);
> -	return r0 >> 28;
> -}
> -
>  static void test_fc(void)
>  {
>  	report(stsi(pagebuf, 7, 0, 0) == 3, "invalid fc");




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