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// See LICENSE for license details.
#ifndef _PK_H
#define _PK_H
#ifndef __ASSEMBLER__
#include "encoding.h"
#include <stdint.h>
#include <string.h>
#include <stdarg.h>
typedef struct
{
long gpr[32];
long status;
long epc;
long badvaddr;
long cause;
} trapframe_t;
#define panic(s,...) do { do_panic(s"\n", ##__VA_ARGS__); } while(0)
#define kassert(cond) do { if(!(cond)) kassert_fail(""#cond); } while(0)
void do_panic(const char* s, ...) __attribute__((noreturn));
void kassert_fail(const char* s) __attribute__((noreturn));
#ifdef __cplusplus
extern "C" {
#endif
void printk(const char* s, ...);
void printm(const char* s, ...);
int vsnprintf(char* out, size_t n, const char* s, va_list vl);
int snprintf(char* out, size_t n, const char* s, ...);
void start_user(trapframe_t* tf) __attribute__((noreturn));
void dump_tf(trapframe_t*);
static uint64_t lfsr63(uint64_t x)
{
uint64_t bit = (x ^ (x >> 1)) & 1;
return (x >> 1) | (bit << 62);
}
static inline int insn_len(long insn)
{
return (insn & 0x3) < 0x3 ? 2 : 4;
}
#if __riscv_xlen == 32
static inline uint64_t rdtime64()
{
uint32_t time;
uint32_t timeh1;
uint32_t timeh2;
do
{
timeh1 = read_csr(timeh);
time = read_csr(time);
timeh2 = read_csr(timeh);
} while(timeh1 != timeh2);
return (((uint64_t) timeh1) << 32) | time;
}
static inline uint64_t rdcycle64()
{
uint32_t cycle;
uint32_t cycleh1;
uint32_t cycleh2;
do
{
cycleh1 = read_csr(cycleh);
cycle = read_csr(cycle);
cycleh2 = read_csr(cycleh);
} while(cycleh1 != cycleh2);
return (((uint64_t) cycleh1) << 32) | cycle;
}
static inline uint64_t rdinstret64()
{
uint32_t instret;
uint32_t instreth1;
uint32_t instreth2;
do
{
instreth1 = read_csr(instreth);
instret = read_csr(instret);
instreth2 = read_csr(instreth);
} while(instreth1 != instreth2);
return (((uint64_t) instreth1) << 32) | instret;
}
#else
#define rdtime64 rdtime
#define rdcycle64 rdcycle
#define rdinstret64 rdinstret
#endif
#define ARRAY_SIZE(x) (sizeof(x)/sizeof((x)[0]))
#ifdef __cplusplus
}
#endif
#endif // !__ASSEMBLER__
#endif
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