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Re: [Qemu-devel] [PATCH v2 2/7] target/ppc: introduce single vsrl_offset


From: David Gibson
Subject: Re: [Qemu-devel] [PATCH v2 2/7] target/ppc: introduce single vsrl_offset() function
Date: Fri, 8 Mar 2019 10:23:04 +1100
User-agent: Mutt/1.11.3 (2019-02-01)

On Thu, Mar 07, 2019 at 06:05:15PM +0000, Mark Cave-Ayland wrote:
> Instead of having multiple copies of the offset calculation logic, move it to 
> a
> single vsrl_offset() function.
> 
> This commit also renames the existing get_vsr()/set_vsr() functions to
> get_vsrl()/set_vsrl() which better describes their purpose.
> 
> Signed-off-by: Mark Cave-Ayland <address@hidden>
> Reviewed-by: Richard Henderson <address@hidden>

Applied, thanks.

> ---
>  target/ppc/cpu.h                    |  7 ++++++-
>  target/ppc/translate/vsx-impl.inc.c | 12 ++++++------
>  2 files changed, 12 insertions(+), 7 deletions(-)
> 
> diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h
> index 4bb4e42670..4a7df13c2d 100644
> --- a/target/ppc/cpu.h
> +++ b/target/ppc/cpu.h
> @@ -2573,9 +2573,14 @@ static inline uint64_t *cpu_fpr_ptr(CPUPPCState *env, 
> int i)
>      return (uint64_t *)((uintptr_t)env + fpr_offset(i));
>  }
>  
> +static inline int vsrl_offset(int i)
> +{
> +    return offsetof(CPUPPCState, vsr[i].u64[1]);
> +}
> +
>  static inline uint64_t *cpu_vsrl_ptr(CPUPPCState *env, int i)
>  {
> -    return &env->vsr[i].u64[1];
> +    return (uint64_t *)((uintptr_t)env + vsrl_offset(i));
>  }
>  
>  static inline ppc_avr_t *cpu_avr_ptr(CPUPPCState *env, int i)
> diff --git a/target/ppc/translate/vsx-impl.inc.c 
> b/target/ppc/translate/vsx-impl.inc.c
> index e73197e717..381ae0f2e9 100644
> --- a/target/ppc/translate/vsx-impl.inc.c
> +++ b/target/ppc/translate/vsx-impl.inc.c
> @@ -1,13 +1,13 @@
>  /***                           VSX extension                               
> ***/
>  
> -static inline void get_vsr(TCGv_i64 dst, int n)
> +static inline void get_vsrl(TCGv_i64 dst, int n)
>  {
> -    tcg_gen_ld_i64(dst, cpu_env, offsetof(CPUPPCState, vsr[n].u64[1]));
> +    tcg_gen_ld_i64(dst, cpu_env, vsrl_offset(n));
>  }
>  
> -static inline void set_vsr(int n, TCGv_i64 src)
> +static inline void set_vsrl(int n, TCGv_i64 src)
>  {
> -    tcg_gen_st_i64(src, cpu_env, offsetof(CPUPPCState, vsr[n].u64[1]));
> +    tcg_gen_st_i64(src, cpu_env, vsrl_offset(n));
>  }
>  
>  static inline int vsr_full_offset(int n)
> @@ -27,7 +27,7 @@ static inline void get_cpu_vsrh(TCGv_i64 dst, int n)
>  static inline void get_cpu_vsrl(TCGv_i64 dst, int n)
>  {
>      if (n < 32) {
> -        get_vsr(dst, n);
> +        get_vsrl(dst, n);
>      } else {
>          get_avr64(dst, n - 32, false);
>      }
> @@ -45,7 +45,7 @@ static inline void set_cpu_vsrh(int n, TCGv_i64 src)
>  static inline void set_cpu_vsrl(int n, TCGv_i64 src)
>  {
>      if (n < 32) {
> -        set_vsr(n, src);
> +        set_vsrl(n, src);
>      } else {
>          set_avr64(n - 32, src, false);
>      }

-- 
David Gibson                    | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au  | minimalist, thank you.  NOT _the_ _other_
                                | _way_ _around_!
http://www.ozlabs.org/~dgibson

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