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Re: [PATCH 01/13] target/riscv: Move cpu_get_tb_cpu_state out of line


From: Alistair Francis
Subject: Re: [PATCH 01/13] target/riscv: Move cpu_get_tb_cpu_state out of line
Date: Fri, 8 Oct 2021 12:28:10 +1000

On Fri, Oct 8, 2021 at 3:52 AM Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> Move the function to cpu_helper.c, as it is large and growing.
>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>

Alistair

> ---
>  target/riscv/cpu.h        | 47 ++-------------------------------------
>  target/riscv/cpu_helper.c | 46 ++++++++++++++++++++++++++++++++++++++
>  2 files changed, 48 insertions(+), 45 deletions(-)
>
> diff --git a/target/riscv/cpu.h b/target/riscv/cpu.h
> index 9e55b2f5b1..7084efc452 100644
> --- a/target/riscv/cpu.h
> +++ b/target/riscv/cpu.h
> @@ -413,51 +413,8 @@ static inline uint32_t vext_get_vlmax(RISCVCPU *cpu, 
> target_ulong vtype)
>      return cpu->cfg.vlen >> (sew + 3 - lmul);
>  }
>
> -static inline void cpu_get_tb_cpu_state(CPURISCVState *env, target_ulong *pc,
> -                                        target_ulong *cs_base, uint32_t 
> *pflags)
> -{
> -    uint32_t flags = 0;
> -
> -    *pc = env->pc;
> -    *cs_base = 0;
> -
> -    if (riscv_has_ext(env, RVV)) {
> -        uint32_t vlmax = vext_get_vlmax(env_archcpu(env), env->vtype);
> -        bool vl_eq_vlmax = (env->vstart == 0) && (vlmax == env->vl);
> -        flags = FIELD_DP32(flags, TB_FLAGS, VILL,
> -                    FIELD_EX64(env->vtype, VTYPE, VILL));
> -        flags = FIELD_DP32(flags, TB_FLAGS, SEW,
> -                    FIELD_EX64(env->vtype, VTYPE, VSEW));
> -        flags = FIELD_DP32(flags, TB_FLAGS, LMUL,
> -                    FIELD_EX64(env->vtype, VTYPE, VLMUL));
> -        flags = FIELD_DP32(flags, TB_FLAGS, VL_EQ_VLMAX, vl_eq_vlmax);
> -    } else {
> -        flags = FIELD_DP32(flags, TB_FLAGS, VILL, 1);
> -    }
> -
> -#ifdef CONFIG_USER_ONLY
> -    flags |= TB_FLAGS_MSTATUS_FS;
> -#else
> -    flags |= cpu_mmu_index(env, 0);
> -    if (riscv_cpu_fp_enabled(env)) {
> -        flags |= env->mstatus & MSTATUS_FS;
> -    }
> -
> -    if (riscv_has_ext(env, RVH)) {
> -        if (env->priv == PRV_M ||
> -            (env->priv == PRV_S && !riscv_cpu_virt_enabled(env)) ||
> -            (env->priv == PRV_U && !riscv_cpu_virt_enabled(env) &&
> -                get_field(env->hstatus, HSTATUS_HU))) {
> -            flags = FIELD_DP32(flags, TB_FLAGS, HLSX, 1);
> -        }
> -
> -        flags = FIELD_DP32(flags, TB_FLAGS, MSTATUS_HS_FS,
> -                           get_field(env->mstatus_hs, MSTATUS_FS));
> -    }
> -#endif
> -
> -    *pflags = flags;
> -}
> +void cpu_get_tb_cpu_state(CPURISCVState *env, target_ulong *pc,
> +                          target_ulong *cs_base, uint32_t *pflags);
>
>  RISCVException riscv_csrrw(CPURISCVState *env, int csrno,
>                             target_ulong *ret_value,
> diff --git a/target/riscv/cpu_helper.c b/target/riscv/cpu_helper.c
> index d41d5cd27c..14d1d3cb72 100644
> --- a/target/riscv/cpu_helper.c
> +++ b/target/riscv/cpu_helper.c
> @@ -35,6 +35,52 @@ int riscv_cpu_mmu_index(CPURISCVState *env, bool ifetch)
>  #endif
>  }
>
> +void cpu_get_tb_cpu_state(CPURISCVState *env, target_ulong *pc,
> +                          target_ulong *cs_base, uint32_t *pflags)
> +{
> +    uint32_t flags = 0;
> +
> +    *pc = env->pc;
> +    *cs_base = 0;
> +
> +    if (riscv_has_ext(env, RVV)) {
> +        uint32_t vlmax = vext_get_vlmax(env_archcpu(env), env->vtype);
> +        bool vl_eq_vlmax = (env->vstart == 0) && (vlmax == env->vl);
> +        flags = FIELD_DP32(flags, TB_FLAGS, VILL,
> +                    FIELD_EX64(env->vtype, VTYPE, VILL));
> +        flags = FIELD_DP32(flags, TB_FLAGS, SEW,
> +                    FIELD_EX64(env->vtype, VTYPE, VSEW));
> +        flags = FIELD_DP32(flags, TB_FLAGS, LMUL,
> +                    FIELD_EX64(env->vtype, VTYPE, VLMUL));
> +        flags = FIELD_DP32(flags, TB_FLAGS, VL_EQ_VLMAX, vl_eq_vlmax);
> +    } else {
> +        flags = FIELD_DP32(flags, TB_FLAGS, VILL, 1);
> +    }
> +
> +#ifdef CONFIG_USER_ONLY
> +    flags |= TB_FLAGS_MSTATUS_FS;
> +#else
> +    flags |= cpu_mmu_index(env, 0);
> +    if (riscv_cpu_fp_enabled(env)) {
> +        flags |= env->mstatus & MSTATUS_FS;
> +    }
> +
> +    if (riscv_has_ext(env, RVH)) {
> +        if (env->priv == PRV_M ||
> +            (env->priv == PRV_S && !riscv_cpu_virt_enabled(env)) ||
> +            (env->priv == PRV_U && !riscv_cpu_virt_enabled(env) &&
> +                get_field(env->hstatus, HSTATUS_HU))) {
> +            flags = FIELD_DP32(flags, TB_FLAGS, HLSX, 1);
> +        }
> +
> +        flags = FIELD_DP32(flags, TB_FLAGS, MSTATUS_HS_FS,
> +                           get_field(env->mstatus_hs, MSTATUS_FS));
> +    }
> +#endif
> +
> +    *pflags = flags;
> +}
> +
>  #ifndef CONFIG_USER_ONLY
>  static int riscv_cpu_local_irq_pending(CPURISCVState *env)
>  {
> --
> 2.25.1
>
>



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