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target/riscv: add Ventana's Veyron V1 CPU 

Add a virtual CPU for Ventana's first CPU named veyron-v1. It runs
exclusively for the rv64 target. It's tested with the 'virt' board.

CPU specs and general information can be found here:

https://www.nextplatform.com/2023/02/02/the-first-risc-v-shot-across-the-datacenter-bow/

Signed-off-by: Rahul Pathak <rpathak@ventanamicro.com>
Signed-off-by: Mayuresh Chitale <mchitale@ventanamicro.com>
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230418123624.16414-1-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
Rahul Pathak 2023-04-18 09:36:24 -03:00 committed by Alistair Francis
parent 190e9f8ec1
commit e1d084a852
3 changed files with 43 additions and 0 deletions
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1
target/riscv/cpu-qom.h
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@ -41,6 +41,7 @@
#define TYPE_RISCV_CPU_SIFIVE_U34 RISCV_CPU_TYPE_NAME("sifive-u34")
#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_HOST RISCV_CPU_TYPE_NAME("host")
#if defined(TARGET_RISCV32)

38
target/riscv/cpu.c
View File

@ -422,6 +422,43 @@ static void rv64_thead_c906_cpu_init(Object *obj)
#endif
}
static void rv64_veyron_v1_cpu_init(Object *obj)
{
CPURISCVState *env = &RISCV_CPU(obj)->env;
RISCVCPU *cpu = RISCV_CPU(obj);
set_misa(env, MXL_RV64, RVG | RVC | RVS | RVU | RVH);
env->priv_ver = PRIV_VERSION_1_12_0;
/* Enable ISA extensions */
cpu->cfg.mmu = true;
cpu->cfg.ext_icbom = true;
cpu->cfg.cbom_blocksize = 64;
cpu->cfg.cboz_blocksize = 64;
cpu->cfg.ext_icboz = true;
cpu->cfg.ext_smaia = true;
cpu->cfg.ext_ssaia = true;
cpu->cfg.ext_sscofpmf = true;
cpu->cfg.ext_sstc = true;
cpu->cfg.ext_svinval = true;
cpu->cfg.ext_svnapot = true;
cpu->cfg.ext_svpbmt = true;
cpu->cfg.ext_smstateen = true;
cpu->cfg.ext_zba = true;
cpu->cfg.ext_zbb = true;
cpu->cfg.ext_zbc = true;
cpu->cfg.ext_zbs = true;
cpu->cfg.ext_XVentanaCondOps = true;
cpu->cfg.mvendorid = VEYRON_V1_MVENDORID;
cpu->cfg.marchid = VEYRON_V1_MARCHID;
cpu->cfg.mimpid = VEYRON_V1_MIMPID;
#ifndef CONFIG_USER_ONLY
set_satp_mode_max_supported(cpu, VM_1_10_SV48);
#endif
}
static void rv128_base_cpu_init(Object *obj)
{
if (qemu_tcg_mttcg_enabled()) {
@ -1827,6 +1864,7 @@ static const TypeInfo riscv_cpu_type_infos[] = {
DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_U54, rv64_sifive_u_cpu_init),
DEFINE_CPU(TYPE_RISCV_CPU_SHAKTI_C, rv64_sifive_u_cpu_init),
DEFINE_CPU(TYPE_RISCV_CPU_THEAD_C906, rv64_thead_c906_cpu_init),
DEFINE_CPU(TYPE_RISCV_CPU_VEYRON_V1, rv64_veyron_v1_cpu_init),
DEFINE_DYNAMIC_CPU(TYPE_RISCV_CPU_BASE128, rv128_base_cpu_init),
#endif
};

4
target/riscv/cpu_vendorid.h
View File

@ -3,4 +3,8 @@
#define THEAD_VENDOR_ID 0x5b7
#define VEYRON_V1_MARCHID 0x8000000000010000
#define VEYRON_V1_MIMPID 0x111
#define VEYRON_V1_MVENDORID 0x61f
#endif /* TARGET_RISCV_CPU_VENDORID_H */