diff options
Diffstat (limited to 'target/riscv/cpu.h')
| -rw-r--r-- | target/riscv/cpu.h | 58 |
1 files changed, 46 insertions, 12 deletions
diff --git a/target/riscv/cpu.h b/target/riscv/cpu.h index c66ac3b..229ade9 100644 --- a/target/riscv/cpu.h +++ b/target/riscv/cpu.h @@ -75,6 +75,7 @@ const char *riscv_get_misa_ext_name(uint32_t bit); const char *riscv_get_misa_ext_description(uint32_t bit); #define CPU_CFG_OFFSET(_prop) offsetof(struct RISCVCPUConfig, _prop) +#define ENV_CSR_OFFSET(_csr) offsetof(CPURISCVState, _csr) typedef struct riscv_cpu_profile { struct riscv_cpu_profile *u_parent; @@ -499,6 +500,19 @@ struct CPUArchState { }; /* + * map is a 16-bit bitmap: the most significant set bit in map is the maximum + * satp mode that is supported. It may be chosen by the user and must respect + * what qemu implements (valid_1_10_32/64) and what the hw is capable of + * (supported bitmap below). + * + * init is a 16-bit bitmap used to make sure the user selected a correct + * configuration as per the specification. + */ +typedef struct { + uint16_t map, init; +} RISCVSATPModes; + +/* * RISCVCPU: * @env: #CPURISCVState * @@ -514,6 +528,7 @@ struct ArchCPU { /* Configuration Settings */ RISCVCPUConfig cfg; + RISCVSATPModes satp_modes; QEMUTimer *pmu_timer; /* A bitmask of Available programmable counters */ @@ -523,6 +538,19 @@ struct ArchCPU { const GPtrArray *decoders; }; +typedef struct RISCVCSR RISCVCSR; + +typedef struct RISCVCPUDef { + RISCVMXL misa_mxl_max; /* max mxl for this cpu */ + RISCVCPUProfile *profile; + uint32_t misa_ext; + int priv_spec; + int32_t vext_spec; + RISCVCPUConfig cfg; + bool bare; + const RISCVCSR *custom_csrs; +} RISCVCPUDef; + /** * RISCVCPUClass: * @parent_realize: The parent class' realize handler. @@ -535,7 +563,7 @@ struct RISCVCPUClass { DeviceRealize parent_realize; ResettablePhases parent_phases; - RISCVMXL misa_mxl_max; /* max mxl for this cpu */ + RISCVCPUDef *def; }; static inline int riscv_has_ext(CPURISCVState *env, target_ulong ext) @@ -813,8 +841,8 @@ RISCVException riscv_csrr(CPURISCVState *env, int csrno, target_ulong *ret_value); RISCVException riscv_csrrw(CPURISCVState *env, int csrno, - target_ulong *ret_value, - target_ulong new_value, target_ulong write_mask); + target_ulong *ret_value, target_ulong new_value, + target_ulong write_mask, uintptr_t ra); RISCVException riscv_csrrw_debug(CPURISCVState *env, int csrno, target_ulong *ret_value, target_ulong new_value, @@ -823,13 +851,13 @@ RISCVException riscv_csrrw_debug(CPURISCVState *env, int csrno, static inline void riscv_csr_write(CPURISCVState *env, int csrno, target_ulong val) { - riscv_csrrw(env, csrno, NULL, val, MAKE_64BIT_MASK(0, TARGET_LONG_BITS)); + riscv_csrrw(env, csrno, NULL, val, MAKE_64BIT_MASK(0, TARGET_LONG_BITS), 0); } static inline target_ulong riscv_csr_read(CPURISCVState *env, int csrno) { target_ulong val = 0; - riscv_csrrw(env, csrno, &val, 0, 0); + riscv_csrrw(env, csrno, &val, 0, 0, 0); return val; } @@ -838,7 +866,8 @@ typedef RISCVException (*riscv_csr_predicate_fn)(CPURISCVState *env, typedef RISCVException (*riscv_csr_read_fn)(CPURISCVState *env, int csrno, target_ulong *ret_value); typedef RISCVException (*riscv_csr_write_fn)(CPURISCVState *env, int csrno, - target_ulong new_value); + target_ulong new_value, + uintptr_t ra); typedef RISCVException (*riscv_csr_op_fn)(CPURISCVState *env, int csrno, target_ulong *ret_value, target_ulong new_value, @@ -847,8 +876,8 @@ typedef RISCVException (*riscv_csr_op_fn)(CPURISCVState *env, int csrno, RISCVException riscv_csrr_i128(CPURISCVState *env, int csrno, Int128 *ret_value); RISCVException riscv_csrrw_i128(CPURISCVState *env, int csrno, - Int128 *ret_value, - Int128 new_value, Int128 write_mask); + Int128 *ret_value, Int128 new_value, + Int128 write_mask, uintptr_t ra); typedef RISCVException (*riscv_csr_read128_fn)(CPURISCVState *env, int csrno, Int128 *ret_value); @@ -867,6 +896,12 @@ typedef struct { uint32_t min_priv_ver; } riscv_csr_operations; +struct RISCVCSR { + int csrno; + bool (*insertion_test)(RISCVCPU *cpu); + riscv_csr_operations csr_ops; +}; + /* CSR function table constants */ enum { CSR_TABLE_SIZE = 0x1000 @@ -921,18 +956,17 @@ extern riscv_csr_operations csr_ops[CSR_TABLE_SIZE]; extern const bool valid_vm_1_10_32[], valid_vm_1_10_64[]; void riscv_get_csr_ops(int csrno, riscv_csr_operations *ops); -void riscv_set_csr_ops(int csrno, riscv_csr_operations *ops); +void riscv_set_csr_ops(int csrno, const riscv_csr_operations *ops); void riscv_cpu_register_gdb_regs_for_features(CPUState *cs); target_ulong riscv_new_csr_seed(target_ulong new_value, target_ulong write_mask); -uint8_t satp_mode_max_from_map(uint32_t map); const char *satp_mode_str(uint8_t satp_mode, bool is_32_bit); -/* Implemented in th_csr.c */ -void th_register_custom_csrs(RISCVCPU *cpu); +/* In th_csr.c */ +extern const RISCVCSR th_csr_list[]; const char *priv_spec_to_str(int priv_version); #endif /* RISCV_CPU_H */ |