Re: [PATCH v2 1/7] target/ppc: powerpc_excp: Extract software TLB logging into a function

[David Gibson]

On Wed, Jan 05, 2022 at 05:40:23PM -0300, Fabiano Rosas wrote:
> Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>

Reviewed-by: David Gibson <david@gibson.dropbear.id.au>

> ---
>  target/ppc/excp_helper.c | 63 +++++++++++++++++++++++-----------------
>  1 file changed, 36 insertions(+), 27 deletions(-)
> 
> diff --git a/target/ppc/excp_helper.c b/target/ppc/excp_helper.c
> index a779dc936a..2c5d5470de 100644
> --- a/target/ppc/excp_helper.c
> +++ b/target/ppc/excp_helper.c
> @@ -135,6 +135,41 @@ static void dump_hcall(CPUPPCState *env)
>                    env->nip);
>  }
>  
> +static void ppc_excp_debug_sw_tlb(CPUPPCState *env, int excp)
> +{
> +#if defined(DEBUG_SOFTWARE_TLB)
> +    const char *es;
> +    target_ulong *miss, *cmp;
> +    int en;
> +
> +    if (!qemu_log_enabled()) {
> +        return;
> +    }
> +
> +    if (excp == POWERPC_EXCP_IFTLB) {
> +        es = "I";
> +        en = 'I';
> +        miss = &env->spr[SPR_IMISS];
> +        cmp = &env->spr[SPR_ICMP];
> +    } else {
> +        if (excp == POWERPC_EXCP_DLTLB) {
> +            es = "DL";
> +        } else {
> +            es = "DS";
> +        }
> +        en = 'D';
> +        miss = &env->spr[SPR_DMISS];
> +        cmp = &env->spr[SPR_DCMP];
> +    }
> +    qemu_log("6xx %sTLB miss: %cM " TARGET_FMT_lx " %cC "
> +             TARGET_FMT_lx " H1 " TARGET_FMT_lx " H2 "
> +             TARGET_FMT_lx " %08x\n", es, en, *miss, en, *cmp,
> +             env->spr[SPR_HASH1], env->spr[SPR_HASH2],
> +             env->error_code);
> +#endif
> +}
> +
> +
>  static int powerpc_reset_wakeup(CPUState *cs, CPUPPCState *env, int excp,
>                                  target_ulong *msr)
>  {
> @@ -777,34 +812,8 @@ static void powerpc_excp(PowerPCCPU *cpu, int excp)
>              }
>              /* fall through */
>          case POWERPC_EXCP_7x5:
> -#if defined(DEBUG_SOFTWARE_TLB)
> -            if (qemu_log_enabled()) {
> -                const char *es;
> -                target_ulong *miss, *cmp;
> -                int en;
> +            ppc_excp_debug_sw_tlb(env, excp);
>  
> -                if (excp == POWERPC_EXCP_IFTLB) {
> -                    es = "I";
> -                    en = 'I';
> -                    miss = &env->spr[SPR_IMISS];
> -                    cmp = &env->spr[SPR_ICMP];
> -                } else {
> -                    if (excp == POWERPC_EXCP_DLTLB) {
> -                        es = "DL";
> -                    } else {
> -                        es = "DS";
> -                    }
> -                    en = 'D';
> -                    miss = &env->spr[SPR_DMISS];
> -                    cmp = &env->spr[SPR_DCMP];
> -                }
> -                qemu_log("6xx %sTLB miss: %cM " TARGET_FMT_lx " %cC "
> -                         TARGET_FMT_lx " H1 " TARGET_FMT_lx " H2 "
> -                         TARGET_FMT_lx " %08x\n", es, en, *miss, en, *cmp,
> -                         env->spr[SPR_HASH1], env->spr[SPR_HASH2],
> -                         env->error_code);
> -            }
> -#endif
>              msr |= env->crf[0] << 28;
>              msr |= env->error_code; /* key, D/I, S/L bits */
>              /* Set way using a LRU mechanism */

-- 
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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