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// See LICENSE for license details.
#ifndef _RISCV_CFG_H
#define _RISCV_CFG_H
#include <optional>
#include <vector>
#include "decode.h"
#include <cassert>
typedef enum {
endianness_little,
endianness_big
} endianness_t;
template <typename T>
class cfg_arg_t {
public:
cfg_arg_t(T default_val)
: value(default_val), was_set(false) {}
bool overridden() const { return was_set; }
T operator()() const { return value; }
T operator=(const T v) {
value = v;
was_set = true;
return value;
}
private:
T value;
bool was_set;
};
// Configuration that describes a memory region
class mem_cfg_t
{
public:
static bool check_if_supported(reg_t base, reg_t size);
mem_cfg_t(reg_t base, reg_t size);
reg_t get_base() const {
return base;
}
reg_t get_size() const {
return size;
}
reg_t get_inclusive_end() const {
return base + size - 1;
}
private:
reg_t base;
reg_t size;
};
class cfg_t
{
public:
cfg_t(std::pair<reg_t, reg_t> default_initrd_bounds,
const char *default_bootargs,
const char *default_isa, const char *default_priv,
const char *default_varch,
const bool default_misaligned,
const endianness_t default_endianness,
const reg_t default_pmpregions,
const reg_t default_pmpgranularity,
const std::vector<mem_cfg_t> &default_mem_layout,
const std::vector<size_t> default_hartids,
bool default_real_time_clint,
const reg_t default_trigger_count)
: initrd_bounds(default_initrd_bounds),
bootargs(default_bootargs),
isa(default_isa),
priv(default_priv),
varch(default_varch),
misaligned(default_misaligned),
endianness(default_endianness),
pmpregions(default_pmpregions),
pmpgranularity(default_pmpgranularity),
mem_layout(default_mem_layout),
hartids(default_hartids),
explicit_hartids(false),
real_time_clint(default_real_time_clint),
trigger_count(default_trigger_count)
{}
cfg_t();
std::pair<reg_t, reg_t> initrd_bounds;
const char * bootargs;
const char * isa;
const char * priv;
const char * varch;
bool misaligned;
endianness_t endianness;
reg_t pmpregions;
reg_t pmpgranularity;
std::vector<mem_cfg_t> mem_layout;
std::optional<reg_t> start_pc;
std::vector<size_t> hartids;
bool explicit_hartids;
bool real_time_clint;
reg_t trigger_count;
size_t nprocs() const { return hartids.size(); }
size_t max_hartid() const { return hartids.back(); }
};
#endif
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