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Re: [PATCH 1/4] riscv: Generalize CPU init routine for the base CPU


From: Alistair Francis
Subject: Re: [PATCH 1/4] riscv: Generalize CPU init routine for the base CPU
Date: Wed, 10 Jun 2020 15:50:53 -0700

On Fri, Jun 5, 2020 at 12:40 AM Bin Meng <bmeng.cn@gmail.com> wrote:
>
> From: Bin Meng <bin.meng@windriver.com>
>
> There is no need to have two functions that have exactly the same
> codes for 32-bit and 64-bit base CPUs.
>
> Signed-off-by: Bin Meng <bin.meng@windriver.com>

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

Alistair

> ---
>
>  target/riscv/cpu.c | 18 +++++-------------
>  1 file changed, 5 insertions(+), 13 deletions(-)
>
> diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
> index 9007a25..d38d829 100644
> --- a/target/riscv/cpu.c
> +++ b/target/riscv/cpu.c
> @@ -126,9 +126,7 @@ static void riscv_any_cpu_init(Object *obj)
>      set_resetvec(env, DEFAULT_RSTVEC);
>  }
>
> -#if defined(TARGET_RISCV32)
> -
> -static void riscv_base32_cpu_init(Object *obj)
> +static void riscv_base_cpu_init(Object *obj)
>  {
>      CPURISCVState *env = &RISCV_CPU(obj)->env;
>      /* We set this in the realise function */
> @@ -136,6 +134,8 @@ static void riscv_base32_cpu_init(Object *obj)
>      set_resetvec(env, DEFAULT_RSTVEC);
>  }
>
> +#if defined(TARGET_RISCV32)
> +
>  static void rv32gcsu_priv1_10_0_cpu_init(Object *obj)
>  {
>      CPURISCVState *env = &RISCV_CPU(obj)->env;
> @@ -173,14 +173,6 @@ static void rv32imafcu_nommu_cpu_init(Object *obj)
>
>  #elif defined(TARGET_RISCV64)
>
> -static void riscv_base64_cpu_init(Object *obj)
> -{
> -    CPURISCVState *env = &RISCV_CPU(obj)->env;
> -    /* We set this in the realise function */
> -    set_misa(env, 0);
> -    set_resetvec(env, DEFAULT_RSTVEC);
> -}
> -
>  static void rv64gcsu_priv1_10_0_cpu_init(Object *obj)
>  {
>      CPURISCVState *env = &RISCV_CPU(obj)->env;
> @@ -601,13 +593,13 @@ static const TypeInfo riscv_cpu_type_infos[] = {
>      },
>      DEFINE_CPU(TYPE_RISCV_CPU_ANY,              riscv_any_cpu_init),
>  #if defined(TARGET_RISCV32)
> -    DEFINE_CPU(TYPE_RISCV_CPU_BASE32,           riscv_base32_cpu_init),
> +    DEFINE_CPU(TYPE_RISCV_CPU_BASE32,           riscv_base_cpu_init),
>      DEFINE_CPU(TYPE_RISCV_CPU_IBEX,             rv32imcu_nommu_cpu_init),
>      DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_E31,       rv32imacu_nommu_cpu_init),
>      DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_E34,       rv32imafcu_nommu_cpu_init),
>      DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_U34,       
> rv32gcsu_priv1_10_0_cpu_init),
>  #elif defined(TARGET_RISCV64)
> -    DEFINE_CPU(TYPE_RISCV_CPU_BASE64,           riscv_base64_cpu_init),
> +    DEFINE_CPU(TYPE_RISCV_CPU_BASE64,           riscv_base_cpu_init),
>      DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_E51,       rv64imacu_nommu_cpu_init),
>      DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_U54,       
> rv64gcsu_priv1_10_0_cpu_init),
>  #endif
> --
> 2.7.4
>
>



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