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// See LICENSE for license details.
#ifndef _PK_H
#define _PK_H
#define MAX_HARTS 32 // coupled to width of booted_harts_mask
#ifndef __ASSEMBLER__
#define debug_printk(s, ...) //printk(s, __VA_ARGS__)
#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;
long insn;
} trapframe_t;
struct mainvars {
uint64_t argc;
uint64_t argv[127]; // this space is shared with the arg strings themselves
};
#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));
#define MAX(a, b) ((a) > (b) ? (a) : (b))
#define MIN(a, b) ((a) < (b) ? (a) : (b))
#define CLAMP(a, lo, hi) MIN(MAX(a, lo), hi)
#define likely(x) __builtin_expect((x), 1)
#define unlikely(x) __builtin_expect((x), 0)
#define EXTRACT_FIELD(val, which) (((val) & (which)) / ((which) & ~((which)-1)))
#define INSERT_FIELD(val, which, fieldval) (((val) & ~(which)) | ((fieldval) * ((which) & ~((which)-1))))
#ifdef __cplusplus
extern "C" {
#endif
extern uintptr_t mem_size;
extern int have_vm;
extern uint32_t num_harts;
extern volatile uint32_t booted_harts_mask;
struct mainvars* parse_args(struct mainvars*);
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 init_tf(trapframe_t*, long pc, long sp);
void start_user(trapframe_t* tf) __attribute__((noreturn));
void dump_tf(trapframe_t*);
void print_logo();
void unhandled_trap(trapframe_t*);
void handle_misaligned_load(trapframe_t*);
void handle_misaligned_store(trapframe_t*);
void handle_fault_load(trapframe_t*);
void handle_fault_store(trapframe_t*);
void prepare_supervisor_mode();
void boot_loader(struct mainvars*);
void run_loaded_program(struct mainvars*);
void boot_other_hart();
typedef struct {
int phent;
int phnum;
int is_supervisor;
size_t phdr;
size_t phdr_size;
size_t first_free_paddr;
size_t first_user_vaddr;
size_t first_vaddr_after_user;
size_t bias;
size_t entry;
size_t brk_min;
size_t brk;
size_t brk_max;
size_t mmap_max;
size_t stack_bottom;
size_t stack_top;
size_t t0;
} elf_info;
extern elf_info current;
void load_elf(const char* fn, elf_info* info);
static inline int insn_len(long insn)
{
return (insn & 0x3) < 0x3 ? 2 : 4;
}
#define ARRAY_SIZE(x) (sizeof(x)/sizeof((x)[0]))
#define NUM_COUNTERS (18)
extern int uarch_counters_enabled;
extern long uarch_counters[NUM_COUNTERS];
extern char* uarch_counter_names[NUM_COUNTERS];
static inline void wfi()
{
asm volatile ("wfi" ::: "memory");
}
#ifdef __cplusplus
}
#endif
#endif // !__ASSEMBLER__
#define ROUNDUP(a, b) ((((a)-1)/(b)+1)*(b))
#define ROUNDDOWN(a, b) ((a)/(b)*(b))
#endif
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