1. Patchew
  2. QEMU
  3. View series

[PATCH v2] target/riscv: Add Tenstorrent Ascalon CPU

Anton Blanchard posted 1 patch 1 year, 2 months ago
Failed in applying to current master (apply log)
target/riscv/cpu-qom.h |  1 +
target/riscv/cpu.c     | 67 ++++++++++++++++++++++++++++++++++++++++++
2 files changed, 68 insertions(+)
[PATCH v2] target/riscv: Add Tenstorrent Ascalon CPU
Posted by Anton Blanchard 1 year, 2 months ago 
Add a CPU entry for the Tenstorrent Ascalon CPU, a series of 2 wide to
8 wide RV64 cores. More details can be found at
https://tenstorrent.com/ip/tt-ascalon

Signed-off-by: Anton Blanchard <antonb@tenstorrent.com>
---
 target/riscv/cpu-qom.h |  1 +
 target/riscv/cpu.c     | 67 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 68 insertions(+)

diff --git a/target/riscv/cpu-qom.h b/target/riscv/cpu-qom.h
index 62115375cd..6547642287 100644
--- a/target/riscv/cpu-qom.h
+++ b/target/riscv/cpu-qom.h
@@ -49,6 +49,7 @@
 #define TYPE_RISCV_CPU_SIFIVE_U54       RISCV_CPU_TYPE_NAME("sifive-u54")
 #define TYPE_RISCV_CPU_THEAD_C906       RISCV_CPU_TYPE_NAME("thead-c906")
 #define TYPE_RISCV_CPU_VEYRON_V1        RISCV_CPU_TYPE_NAME("veyron-v1")
+#define TYPE_RISCV_CPU_TT_ASCALON       RISCV_CPU_TYPE_NAME("tt-ascalon")
 #define TYPE_RISCV_CPU_HOST             RISCV_CPU_TYPE_NAME("host")
 
 OBJECT_DECLARE_CPU_TYPE(RISCVCPU, RISCVCPUClass, RISCV_CPU)
diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
index f219f0c3b5..8447ad0dfb 100644
--- a/target/riscv/cpu.c
+++ b/target/riscv/cpu.c
@@ -579,6 +579,72 @@ static void rv64_veyron_v1_cpu_init(Object *obj)
 #endif
 }
 
+/* Tenstorrent Ascalon */
+static void rv64_tt_ascalon_cpu_init(Object *obj)
+{
+    CPURISCVState *env = &RISCV_CPU(obj)->env;
+    RISCVCPU *cpu = RISCV_CPU(obj);
+
+    riscv_cpu_set_misa_ext(env, RVG | RVC | RVS | RVU | RVH | RVV);
+    env->priv_ver = PRIV_VERSION_1_13_0;
+
+    /* Enable ISA extensions */
+    cpu->cfg.mmu = true;
+    cpu->cfg.vlenb = 256 >> 3;
+    cpu->cfg.elen = 64;
+    cpu->env.vext_ver = VEXT_VERSION_1_00_0;
+    cpu->cfg.rvv_ma_all_1s = true;
+    cpu->cfg.rvv_ta_all_1s = true;
+    cpu->cfg.misa_w = true;
+    cpu->cfg.pmp = true;
+    cpu->cfg.cbom_blocksize = 64;
+    cpu->cfg.cbop_blocksize = 64;
+    cpu->cfg.cboz_blocksize = 64;
+    cpu->cfg.ext_zic64b = true;
+    cpu->cfg.ext_zicbom = true;
+    cpu->cfg.ext_zicbop = true;
+    cpu->cfg.ext_zicboz = true;
+    cpu->cfg.ext_zicntr = true;
+    cpu->cfg.ext_zicond = true;
+    cpu->cfg.ext_zicsr = true;
+    cpu->cfg.ext_zifencei = true;
+    cpu->cfg.ext_zihintntl = true;
+    cpu->cfg.ext_zihintpause = true;
+    cpu->cfg.ext_zihpm = true;
+    cpu->cfg.ext_zimop = true;
+    cpu->cfg.ext_zawrs = true;
+    cpu->cfg.ext_zfa = true;
+    cpu->cfg.ext_zfbfmin = true;
+    cpu->cfg.ext_zfh = true;
+    cpu->cfg.ext_zfhmin = true;
+    cpu->cfg.ext_zcb = true;
+    cpu->cfg.ext_zcmop = true;
+    cpu->cfg.ext_zba = true;
+    cpu->cfg.ext_zbb = true;
+    cpu->cfg.ext_zbs = true;
+    cpu->cfg.ext_zkt = true;
+    cpu->cfg.ext_zvbb = true;
+    cpu->cfg.ext_zvbc = true;
+    cpu->cfg.ext_zvfbfmin = true;
+    cpu->cfg.ext_zvfbfwma = true;
+    cpu->cfg.ext_zvfh = true;
+    cpu->cfg.ext_zvfhmin = true;
+    cpu->cfg.ext_zvkng = true;
+    cpu->cfg.ext_smaia = true;
+    cpu->cfg.ext_smstateen = true;
+    cpu->cfg.ext_ssaia = true;
+    cpu->cfg.ext_sscofpmf = true;
+    cpu->cfg.ext_sstc = true;
+    cpu->cfg.ext_svade = true;
+    cpu->cfg.ext_svinval = true;
+    cpu->cfg.ext_svnapot = true;
+    cpu->cfg.ext_svpbmt = true;
+
+#ifndef CONFIG_USER_ONLY
+    set_satp_mode_max_supported(cpu, VM_1_10_SV57);
+#endif
+}
+
 #ifdef CONFIG_TCG
 static void rv128_base_cpu_init(Object *obj)
 {
@@ -2982,6 +3048,7 @@ static const TypeInfo riscv_cpu_type_infos[] = {
     DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_SIFIVE_U54, MXL_RV64,  rv64_sifive_u_cpu_init),
     DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_SHAKTI_C,   MXL_RV64,  rv64_sifive_u_cpu_init),
     DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_THEAD_C906, MXL_RV64,  rv64_thead_c906_cpu_init),
+    DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_TT_ASCALON, MXL_RV64,  rv64_tt_ascalon_cpu_init),
     DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_VEYRON_V1,  MXL_RV64,  rv64_veyron_v1_cpu_init),
 #ifdef CONFIG_TCG
     DEFINE_DYNAMIC_CPU(TYPE_RISCV_CPU_BASE128,   MXL_RV128, rv128_base_cpu_init),
-- 
2.34.1
Re: [PATCH v2] target/riscv: Add Tenstorrent Ascalon CPU
Posted by Alistair Francis 1 year, 2 months ago 
On Wed, Nov 13, 2024 at 9:06 PM Anton Blanchard <antonb@tenstorrent.com> wrote:
>
> Add a CPU entry for the Tenstorrent Ascalon CPU, a series of 2 wide to
> 8 wide RV64 cores. More details can be found at
> https://tenstorrent.com/ip/tt-ascalon
>
> Signed-off-by: Anton Blanchard <antonb@tenstorrent.com>

Thanks!

Applied to riscv-to-apply.next

Alistair

> ---
>  target/riscv/cpu-qom.h |  1 +
>  target/riscv/cpu.c     | 67 ++++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 68 insertions(+)
>
> diff --git a/target/riscv/cpu-qom.h b/target/riscv/cpu-qom.h
> index 62115375cd..6547642287 100644
> --- a/target/riscv/cpu-qom.h
> +++ b/target/riscv/cpu-qom.h
> @@ -49,6 +49,7 @@
>  #define TYPE_RISCV_CPU_SIFIVE_U54       RISCV_CPU_TYPE_NAME("sifive-u54")
>  #define TYPE_RISCV_CPU_THEAD_C906       RISCV_CPU_TYPE_NAME("thead-c906")
>  #define TYPE_RISCV_CPU_VEYRON_V1        RISCV_CPU_TYPE_NAME("veyron-v1")
> +#define TYPE_RISCV_CPU_TT_ASCALON       RISCV_CPU_TYPE_NAME("tt-ascalon")
>  #define TYPE_RISCV_CPU_HOST             RISCV_CPU_TYPE_NAME("host")
>
>  OBJECT_DECLARE_CPU_TYPE(RISCVCPU, RISCVCPUClass, RISCV_CPU)
> diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
> index f219f0c3b5..8447ad0dfb 100644
> --- a/target/riscv/cpu.c
> +++ b/target/riscv/cpu.c
> @@ -579,6 +579,72 @@ static void rv64_veyron_v1_cpu_init(Object *obj)
>  #endif
>  }
>
> +/* Tenstorrent Ascalon */
> +static void rv64_tt_ascalon_cpu_init(Object *obj)
> +{
> +    CPURISCVState *env = &RISCV_CPU(obj)->env;
> +    RISCVCPU *cpu = RISCV_CPU(obj);
> +
> +    riscv_cpu_set_misa_ext(env, RVG | RVC | RVS | RVU | RVH | RVV);
> +    env->priv_ver = PRIV_VERSION_1_13_0;
> +
> +    /* Enable ISA extensions */
> +    cpu->cfg.mmu = true;
> +    cpu->cfg.vlenb = 256 >> 3;
> +    cpu->cfg.elen = 64;
> +    cpu->env.vext_ver = VEXT_VERSION_1_00_0;
> +    cpu->cfg.rvv_ma_all_1s = true;
> +    cpu->cfg.rvv_ta_all_1s = true;
> +    cpu->cfg.misa_w = true;
> +    cpu->cfg.pmp = true;
> +    cpu->cfg.cbom_blocksize = 64;
> +    cpu->cfg.cbop_blocksize = 64;
> +    cpu->cfg.cboz_blocksize = 64;
> +    cpu->cfg.ext_zic64b = true;
> +    cpu->cfg.ext_zicbom = true;
> +    cpu->cfg.ext_zicbop = true;
> +    cpu->cfg.ext_zicboz = true;
> +    cpu->cfg.ext_zicntr = true;
> +    cpu->cfg.ext_zicond = true;
> +    cpu->cfg.ext_zicsr = true;
> +    cpu->cfg.ext_zifencei = true;
> +    cpu->cfg.ext_zihintntl = true;
> +    cpu->cfg.ext_zihintpause = true;
> +    cpu->cfg.ext_zihpm = true;
> +    cpu->cfg.ext_zimop = true;
> +    cpu->cfg.ext_zawrs = true;
> +    cpu->cfg.ext_zfa = true;
> +    cpu->cfg.ext_zfbfmin = true;
> +    cpu->cfg.ext_zfh = true;
> +    cpu->cfg.ext_zfhmin = true;
> +    cpu->cfg.ext_zcb = true;
> +    cpu->cfg.ext_zcmop = true;
> +    cpu->cfg.ext_zba = true;
> +    cpu->cfg.ext_zbb = true;
> +    cpu->cfg.ext_zbs = true;
> +    cpu->cfg.ext_zkt = true;
> +    cpu->cfg.ext_zvbb = true;
> +    cpu->cfg.ext_zvbc = true;
> +    cpu->cfg.ext_zvfbfmin = true;
> +    cpu->cfg.ext_zvfbfwma = true;
> +    cpu->cfg.ext_zvfh = true;
> +    cpu->cfg.ext_zvfhmin = true;
> +    cpu->cfg.ext_zvkng = true;
> +    cpu->cfg.ext_smaia = true;
> +    cpu->cfg.ext_smstateen = true;
> +    cpu->cfg.ext_ssaia = true;
> +    cpu->cfg.ext_sscofpmf = true;
> +    cpu->cfg.ext_sstc = true;
> +    cpu->cfg.ext_svade = true;
> +    cpu->cfg.ext_svinval = true;
> +    cpu->cfg.ext_svnapot = true;
> +    cpu->cfg.ext_svpbmt = true;
> +
> +#ifndef CONFIG_USER_ONLY
> +    set_satp_mode_max_supported(cpu, VM_1_10_SV57);
> +#endif
> +}
> +
>  #ifdef CONFIG_TCG
>  static void rv128_base_cpu_init(Object *obj)
>  {
> @@ -2982,6 +3048,7 @@ static const TypeInfo riscv_cpu_type_infos[] = {
>      DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_SIFIVE_U54, MXL_RV64,  rv64_sifive_u_cpu_init),
>      DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_SHAKTI_C,   MXL_RV64,  rv64_sifive_u_cpu_init),
>      DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_THEAD_C906, MXL_RV64,  rv64_thead_c906_cpu_init),
> +    DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_TT_ASCALON, MXL_RV64,  rv64_tt_ascalon_cpu_init),
>      DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_VEYRON_V1,  MXL_RV64,  rv64_veyron_v1_cpu_init),
>  #ifdef CONFIG_TCG
>      DEFINE_DYNAMIC_CPU(TYPE_RISCV_CPU_BASE128,   MXL_RV128, rv128_base_cpu_init),
> --
> 2.34.1
>
>
Re: [PATCH v2] target/riscv: Add Tenstorrent Ascalon CPU
Posted by Alistair Francis 1 year, 2 months ago 
On Wed, Nov 13, 2024 at 9:06 PM Anton Blanchard <antonb@tenstorrent.com> wrote:
>
> Add a CPU entry for the Tenstorrent Ascalon CPU, a series of 2 wide to
> 8 wide RV64 cores. More details can be found at
> https://tenstorrent.com/ip/tt-ascalon
>
> Signed-off-by: Anton Blanchard <antonb@tenstorrent.com>

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

Alistair

> ---
>  target/riscv/cpu-qom.h |  1 +
>  target/riscv/cpu.c     | 67 ++++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 68 insertions(+)
>
> diff --git a/target/riscv/cpu-qom.h b/target/riscv/cpu-qom.h
> index 62115375cd..6547642287 100644
> --- a/target/riscv/cpu-qom.h
> +++ b/target/riscv/cpu-qom.h
> @@ -49,6 +49,7 @@
>  #define TYPE_RISCV_CPU_SIFIVE_U54       RISCV_CPU_TYPE_NAME("sifive-u54")
>  #define TYPE_RISCV_CPU_THEAD_C906       RISCV_CPU_TYPE_NAME("thead-c906")
>  #define TYPE_RISCV_CPU_VEYRON_V1        RISCV_CPU_TYPE_NAME("veyron-v1")
> +#define TYPE_RISCV_CPU_TT_ASCALON       RISCV_CPU_TYPE_NAME("tt-ascalon")
>  #define TYPE_RISCV_CPU_HOST             RISCV_CPU_TYPE_NAME("host")
>
>  OBJECT_DECLARE_CPU_TYPE(RISCVCPU, RISCVCPUClass, RISCV_CPU)
> diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
> index f219f0c3b5..8447ad0dfb 100644
> --- a/target/riscv/cpu.c
> +++ b/target/riscv/cpu.c
> @@ -579,6 +579,72 @@ static void rv64_veyron_v1_cpu_init(Object *obj)
>  #endif
>  }
>
> +/* Tenstorrent Ascalon */
> +static void rv64_tt_ascalon_cpu_init(Object *obj)
> +{
> +    CPURISCVState *env = &RISCV_CPU(obj)->env;
> +    RISCVCPU *cpu = RISCV_CPU(obj);
> +
> +    riscv_cpu_set_misa_ext(env, RVG | RVC | RVS | RVU | RVH | RVV);
> +    env->priv_ver = PRIV_VERSION_1_13_0;
> +
> +    /* Enable ISA extensions */
> +    cpu->cfg.mmu = true;
> +    cpu->cfg.vlenb = 256 >> 3;
> +    cpu->cfg.elen = 64;
> +    cpu->env.vext_ver = VEXT_VERSION_1_00_0;
> +    cpu->cfg.rvv_ma_all_1s = true;
> +    cpu->cfg.rvv_ta_all_1s = true;
> +    cpu->cfg.misa_w = true;
> +    cpu->cfg.pmp = true;
> +    cpu->cfg.cbom_blocksize = 64;
> +    cpu->cfg.cbop_blocksize = 64;
> +    cpu->cfg.cboz_blocksize = 64;
> +    cpu->cfg.ext_zic64b = true;
> +    cpu->cfg.ext_zicbom = true;
> +    cpu->cfg.ext_zicbop = true;
> +    cpu->cfg.ext_zicboz = true;
> +    cpu->cfg.ext_zicntr = true;
> +    cpu->cfg.ext_zicond = true;
> +    cpu->cfg.ext_zicsr = true;
> +    cpu->cfg.ext_zifencei = true;
> +    cpu->cfg.ext_zihintntl = true;
> +    cpu->cfg.ext_zihintpause = true;
> +    cpu->cfg.ext_zihpm = true;
> +    cpu->cfg.ext_zimop = true;
> +    cpu->cfg.ext_zawrs = true;
> +    cpu->cfg.ext_zfa = true;
> +    cpu->cfg.ext_zfbfmin = true;
> +    cpu->cfg.ext_zfh = true;
> +    cpu->cfg.ext_zfhmin = true;
> +    cpu->cfg.ext_zcb = true;
> +    cpu->cfg.ext_zcmop = true;
> +    cpu->cfg.ext_zba = true;
> +    cpu->cfg.ext_zbb = true;
> +    cpu->cfg.ext_zbs = true;
> +    cpu->cfg.ext_zkt = true;
> +    cpu->cfg.ext_zvbb = true;
> +    cpu->cfg.ext_zvbc = true;
> +    cpu->cfg.ext_zvfbfmin = true;
> +    cpu->cfg.ext_zvfbfwma = true;
> +    cpu->cfg.ext_zvfh = true;
> +    cpu->cfg.ext_zvfhmin = true;
> +    cpu->cfg.ext_zvkng = true;
> +    cpu->cfg.ext_smaia = true;
> +    cpu->cfg.ext_smstateen = true;
> +    cpu->cfg.ext_ssaia = true;
> +    cpu->cfg.ext_sscofpmf = true;
> +    cpu->cfg.ext_sstc = true;
> +    cpu->cfg.ext_svade = true;
> +    cpu->cfg.ext_svinval = true;
> +    cpu->cfg.ext_svnapot = true;
> +    cpu->cfg.ext_svpbmt = true;
> +
> +#ifndef CONFIG_USER_ONLY
> +    set_satp_mode_max_supported(cpu, VM_1_10_SV57);
> +#endif
> +}
> +
>  #ifdef CONFIG_TCG
>  static void rv128_base_cpu_init(Object *obj)
>  {
> @@ -2982,6 +3048,7 @@ static const TypeInfo riscv_cpu_type_infos[] = {
>      DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_SIFIVE_U54, MXL_RV64,  rv64_sifive_u_cpu_init),
>      DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_SHAKTI_C,   MXL_RV64,  rv64_sifive_u_cpu_init),
>      DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_THEAD_C906, MXL_RV64,  rv64_thead_c906_cpu_init),
> +    DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_TT_ASCALON, MXL_RV64,  rv64_tt_ascalon_cpu_init),
>      DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_VEYRON_V1,  MXL_RV64,  rv64_veyron_v1_cpu_init),
>  #ifdef CONFIG_TCG
>      DEFINE_DYNAMIC_CPU(TYPE_RISCV_CPU_BASE128,   MXL_RV128, rv128_base_cpu_init),
> --
> 2.34.1
>
>
Re: [PATCH v2] target/riscv: Add Tenstorrent Ascalon CPU
Posted by Daniel Henrique Barboza 1 year, 2 months ago 

On 11/13/24 8:04 AM, Anton Blanchard wrote:
> Add a CPU entry for the Tenstorrent Ascalon CPU, a series of 2 wide to
> 8 wide RV64 cores. More details can be found at
> https://tenstorrent.com/ip/tt-ascalon
> 
> Signed-off-by: Anton Blanchard <antonb@tenstorrent.com>
> ---


Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>

>   target/riscv/cpu-qom.h |  1 +
>   target/riscv/cpu.c     | 67 ++++++++++++++++++++++++++++++++++++++++++
>   2 files changed, 68 insertions(+)
> 
> diff --git a/target/riscv/cpu-qom.h b/target/riscv/cpu-qom.h
> index 62115375cd..6547642287 100644
> --- a/target/riscv/cpu-qom.h
> +++ b/target/riscv/cpu-qom.h
> @@ -49,6 +49,7 @@
>   #define TYPE_RISCV_CPU_SIFIVE_U54       RISCV_CPU_TYPE_NAME("sifive-u54")
>   #define TYPE_RISCV_CPU_THEAD_C906       RISCV_CPU_TYPE_NAME("thead-c906")
>   #define TYPE_RISCV_CPU_VEYRON_V1        RISCV_CPU_TYPE_NAME("veyron-v1")
> +#define TYPE_RISCV_CPU_TT_ASCALON       RISCV_CPU_TYPE_NAME("tt-ascalon")
>   #define TYPE_RISCV_CPU_HOST             RISCV_CPU_TYPE_NAME("host")
>   
>   OBJECT_DECLARE_CPU_TYPE(RISCVCPU, RISCVCPUClass, RISCV_CPU)
> diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
> index f219f0c3b5..8447ad0dfb 100644
> --- a/target/riscv/cpu.c
> +++ b/target/riscv/cpu.c
> @@ -579,6 +579,72 @@ static void rv64_veyron_v1_cpu_init(Object *obj)
>   #endif
>   }
>   
> +/* Tenstorrent Ascalon */
> +static void rv64_tt_ascalon_cpu_init(Object *obj)
> +{
> +    CPURISCVState *env = &RISCV_CPU(obj)->env;
> +    RISCVCPU *cpu = RISCV_CPU(obj);
> +
> +    riscv_cpu_set_misa_ext(env, RVG | RVC | RVS | RVU | RVH | RVV);
> +    env->priv_ver = PRIV_VERSION_1_13_0;
> +
> +    /* Enable ISA extensions */
> +    cpu->cfg.mmu = true;
> +    cpu->cfg.vlenb = 256 >> 3;
> +    cpu->cfg.elen = 64;
> +    cpu->env.vext_ver = VEXT_VERSION_1_00_0;
> +    cpu->cfg.rvv_ma_all_1s = true;
> +    cpu->cfg.rvv_ta_all_1s = true;
> +    cpu->cfg.misa_w = true;
> +    cpu->cfg.pmp = true;
> +    cpu->cfg.cbom_blocksize = 64;
> +    cpu->cfg.cbop_blocksize = 64;
> +    cpu->cfg.cboz_blocksize = 64;
> +    cpu->cfg.ext_zic64b = true;
> +    cpu->cfg.ext_zicbom = true;
> +    cpu->cfg.ext_zicbop = true;
> +    cpu->cfg.ext_zicboz = true;
> +    cpu->cfg.ext_zicntr = true;
> +    cpu->cfg.ext_zicond = true;
> +    cpu->cfg.ext_zicsr = true;
> +    cpu->cfg.ext_zifencei = true;
> +    cpu->cfg.ext_zihintntl = true;
> +    cpu->cfg.ext_zihintpause = true;
> +    cpu->cfg.ext_zihpm = true;
> +    cpu->cfg.ext_zimop = true;
> +    cpu->cfg.ext_zawrs = true;
> +    cpu->cfg.ext_zfa = true;
> +    cpu->cfg.ext_zfbfmin = true;
> +    cpu->cfg.ext_zfh = true;
> +    cpu->cfg.ext_zfhmin = true;
> +    cpu->cfg.ext_zcb = true;
> +    cpu->cfg.ext_zcmop = true;
> +    cpu->cfg.ext_zba = true;
> +    cpu->cfg.ext_zbb = true;
> +    cpu->cfg.ext_zbs = true;
> +    cpu->cfg.ext_zkt = true;
> +    cpu->cfg.ext_zvbb = true;
> +    cpu->cfg.ext_zvbc = true;
> +    cpu->cfg.ext_zvfbfmin = true;
> +    cpu->cfg.ext_zvfbfwma = true;
> +    cpu->cfg.ext_zvfh = true;
> +    cpu->cfg.ext_zvfhmin = true;
> +    cpu->cfg.ext_zvkng = true;
> +    cpu->cfg.ext_smaia = true;
> +    cpu->cfg.ext_smstateen = true;
> +    cpu->cfg.ext_ssaia = true;
> +    cpu->cfg.ext_sscofpmf = true;
> +    cpu->cfg.ext_sstc = true;
> +    cpu->cfg.ext_svade = true;
> +    cpu->cfg.ext_svinval = true;
> +    cpu->cfg.ext_svnapot = true;
> +    cpu->cfg.ext_svpbmt = true;
> +
> +#ifndef CONFIG_USER_ONLY
> +    set_satp_mode_max_supported(cpu, VM_1_10_SV57);
> +#endif
> +}
> +
>   #ifdef CONFIG_TCG
>   static void rv128_base_cpu_init(Object *obj)
>   {
> @@ -2982,6 +3048,7 @@ static const TypeInfo riscv_cpu_type_infos[] = {
>       DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_SIFIVE_U54, MXL_RV64,  rv64_sifive_u_cpu_init),
>       DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_SHAKTI_C,   MXL_RV64,  rv64_sifive_u_cpu_init),
>       DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_THEAD_C906, MXL_RV64,  rv64_thead_c906_cpu_init),
> +    DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_TT_ASCALON, MXL_RV64,  rv64_tt_ascalon_cpu_init),
>       DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_VEYRON_V1,  MXL_RV64,  rv64_veyron_v1_cpu_init),
>   #ifdef CONFIG_TCG
>       DEFINE_DYNAMIC_CPU(TYPE_RISCV_CPU_BASE128,   MXL_RV128, rv128_base_cpu_init),
Re: [PATCH v2] target/riscv: Add Tenstorrent Ascalon CPU
Posted by Prasad Pandit 1 year, 2 months ago 
On Wed, 13 Nov 2024 at 16:36, Anton Blanchard <antonb@tenstorrent.com> wrote:
> Add a CPU entry for the Tenstorrent Ascalon CPU, a series of 2 wide to
> 8 wide RV64 cores. More details can be found at
> https://tenstorrent.com/ip/tt-ascalon
>
> Signed-off-by: Anton Blanchard <antonb@tenstorrent.com>
> ---
>  target/riscv/cpu-qom.h |  1 +
>  target/riscv/cpu.c     | 67 ++++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 68 insertions(+)

v1: https://lore.kernel.org/qemu-devel/20241108230709.1466634-1-antonb@tenstorrent.com/T/#u

* We need to share a link to an earlier discussion/version of the patch. ^^

> diff --git a/target/riscv/cpu-qom.h b/target/riscv/cpu-qom.h
> index 62115375cd..6547642287 100644
> --- a/target/riscv/cpu-qom.h
> +++ b/target/riscv/cpu-qom.h
> @@ -49,6 +49,7 @@
>  #define TYPE_RISCV_CPU_SIFIVE_U54       RISCV_CPU_TYPE_NAME("sifive-u54")
>  #define TYPE_RISCV_CPU_THEAD_C906       RISCV_CPU_TYPE_NAME("thead-c906")
>  #define TYPE_RISCV_CPU_VEYRON_V1        RISCV_CPU_TYPE_NAME("veyron-v1")
> +#define TYPE_RISCV_CPU_TT_ASCALON       RISCV_CPU_TYPE_NAME("tt-ascalon")
>  #define TYPE_RISCV_CPU_HOST             RISCV_CPU_TYPE_NAME("host")
>
>  OBJECT_DECLARE_CPU_TYPE(RISCVCPU, RISCVCPUClass, RISCV_CPU)
> diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
> index f219f0c3b5..8447ad0dfb 100644
> --- a/target/riscv/cpu.c
> +++ b/target/riscv/cpu.c
> @@ -579,6 +579,72 @@ static void rv64_veyron_v1_cpu_init(Object *obj)
>  #endif
>  }
>
> +/* Tenstorrent Ascalon */

* This comment looks redundant, does not help much.

> +static void rv64_tt_ascalon_cpu_init(Object *obj)
> +{
> +    CPURISCVState *env = &RISCV_CPU(obj)->env;
> +    RISCVCPU *cpu = RISCV_CPU(obj);
> +
> +    riscv_cpu_set_misa_ext(env, RVG | RVC | RVS | RVU | RVH | RVV);
> +    env->priv_ver = PRIV_VERSION_1_13_0;
> +
> +    /* Enable ISA extensions */
> +    cpu->cfg.mmu = true;
> +    cpu->cfg.vlenb = 256 >> 3;
> +    cpu->cfg.elen = 64;
> +    cpu->env.vext_ver = VEXT_VERSION_1_00_0;
> +    cpu->cfg.rvv_ma_all_1s = true;
> +    cpu->cfg.rvv_ta_all_1s = true;
> +    cpu->cfg.misa_w = true;
> +    cpu->cfg.pmp = true;
> +    cpu->cfg.cbom_blocksize = 64;
> +    cpu->cfg.cbop_blocksize = 64;
> +    cpu->cfg.cboz_blocksize = 64;
> +    cpu->cfg.ext_zic64b = true;
> +    cpu->cfg.ext_zicbom = true;
> +    cpu->cfg.ext_zicbop = true;
> +    cpu->cfg.ext_zicboz = true;
> +    cpu->cfg.ext_zicntr = true;
> +    cpu->cfg.ext_zicond = true;
> +    cpu->cfg.ext_zicsr = true;
> +    cpu->cfg.ext_zifencei = true;
> +    cpu->cfg.ext_zihintntl = true;
> +    cpu->cfg.ext_zihintpause = true;
> +    cpu->cfg.ext_zihpm = true;
> +    cpu->cfg.ext_zimop = true;
> +    cpu->cfg.ext_zawrs = true;
> +    cpu->cfg.ext_zfa = true;
> +    cpu->cfg.ext_zfbfmin = true;
> +    cpu->cfg.ext_zfh = true;
> +    cpu->cfg.ext_zfhmin = true;
> +    cpu->cfg.ext_zcb = true;
> +    cpu->cfg.ext_zcmop = true;
> +    cpu->cfg.ext_zba = true;
> +    cpu->cfg.ext_zbb = true;
> +    cpu->cfg.ext_zbs = true;
> +    cpu->cfg.ext_zkt = true;
> +    cpu->cfg.ext_zvbb = true;
> +    cpu->cfg.ext_zvbc = true;
> +    cpu->cfg.ext_zvfbfmin = true;
> +    cpu->cfg.ext_zvfbfwma = true;
> +    cpu->cfg.ext_zvfh = true;
> +    cpu->cfg.ext_zvfhmin = true;
> +    cpu->cfg.ext_zvkng = true;
> +    cpu->cfg.ext_smaia = true;
> +    cpu->cfg.ext_smstateen = true;
> +    cpu->cfg.ext_ssaia = true;
> +    cpu->cfg.ext_sscofpmf = true;
> +    cpu->cfg.ext_sstc = true;
> +    cpu->cfg.ext_svade = true;
> +    cpu->cfg.ext_svinval = true;
> +    cpu->cfg.ext_svnapot = true;
> +    cpu->cfg.ext_svpbmt = true;
> +
> +#ifndef CONFIG_USER_ONLY
> +    set_satp_mode_max_supported(cpu, VM_1_10_SV57);
> +#endif
> +}
> +
>  #ifdef CONFIG_TCG
>  static void rv128_base_cpu_init(Object *obj)
>  {
> @@ -2982,6 +3048,7 @@ static const TypeInfo riscv_cpu_type_infos[] = {
>      DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_SIFIVE_U54, MXL_RV64,  rv64_sifive_u_cpu_init),
>      DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_SHAKTI_C,   MXL_RV64,  rv64_sifive_u_cpu_init),
>      DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_THEAD_C906, MXL_RV64,  rv64_thead_c906_cpu_init),
> +    DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_TT_ASCALON, MXL_RV64,  rv64_tt_ascalon_cpu_init),
>      DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_VEYRON_V1,  MXL_RV64,  rv64_veyron_v1_cpu_init),
>  #ifdef CONFIG_TCG
>      DEFINE_DYNAMIC_CPU(TYPE_RISCV_CPU_BASE128,   MXL_RV128, rv128_base_cpu_init),
> --

Rest looks okay.

Thank you.
---
  - Prasad

Patchew 2.1-devel-b67e4c2

© 2016 - 2026 Red Hat, Inc.