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/* sim-config.h -- Simulator configuration header file

   Copyright (C) 1999 Damjan Lampret, lampret@opencores.org

   Copyright (C) 2008 Embecosm Limited

   Contributor Jeremy Bennett <jeremy.bennett@embecosm.com>

   This file is part of OpenRISC 1000 Architectural Simulator.

   This program is free software; you can redistribute it and/or modify it

   under the terms of the GNU General Public License as published by the Free

   Software Foundation; either version 3 of the License, or (at your option)

   any later version.

   This program is distributed in the hope that it will be useful, but WITHOUT

   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for

   more details.

   You should have received a copy of the GNU General Public License along

   with this program.  If not, see <http://www.gnu.org/licenses/>. */

#ifndef _CONFIG_H_

#define _CONFIG_H_

#include <stdio.h>

/* Simulator configuration macros. Eventually this one will be a lot bigger. */

#define MAX_SBUF_LEN     256          /* Max. length of store buffer */

#define EXE_LOG_HARDWARE 0            /* Print out RTL states */

#define EXE_LOG_SIMPLE   1            /* Executed log prints out dissasembly */

#define EXE_LOG_SOFTWARE 2            /* Simple with some register output*/

#define STR_SIZE        (256)

struct config {

  struct {                            /* External linkage for SystemC */

    void               *class_ptr;

    unsigned long int (*read_up)( void              *class_ptr,

                                  unsigned long int  addr,

                                  unsigned long int  mask);

    void              (*write_up)( void              *class_ptr,

                                   unsigned long int  addr,

                                   unsigned long int  mask,

                                   unsigned long int  wdata );

  } ext;

  struct {

    int enabled;                      /* Is tick timer enabled?  */

  } tick;

  struct {

    int enabled;                      /* Whether instruction cache is enabled */

    int nways;                        /* Number of IC ways */

    int nsets;                        /* Number of IC sets */

    int blocksize;                    /* IC entry size */

    int ustates;                      /* number of IC usage states */

    int missdelay;                    /* How much cycles does the miss cost */

    int hitdelay;                     /* How much cycles does the hit cost */

    unsigned int blocksize_log2;      /* log2(blocksize) */

    oraddr_t set_mask;                /* Mask to get set number */

    oraddr_t tagaddr_mask;            /* Mask to get tag address */

    oraddr_t last_way;                /* nways * nsets */

    oraddr_t block_offset_mask;       /* mask to get offset into block */

    oraddr_t block_mask;              /* mask to get block number */

    unsigned int ustates_reload;      /* ustates - 1 */

  } ic;

  struct {

    int enabled;                      /* Whether data cache is enabled */

    int nways;                        /* Number of DC ways */

    int nsets;                        /* Number of DC sets */

    int blocksize;                    /* DC entry size */

    int ustates;                      /* number of DC usage states */

    int store_missdelay;              /* How much cycles does the store miss cost */

    int store_hitdelay;               /* How much cycles does the store hit cost */

    int load_missdelay;               /* How much cycles does the load miss cost */

    int load_hitdelay;                /* How much cycles does the load hit cost */

  } dc;

  struct {

    int enabled;                      /* branch prediction buffer analysis */

    int sbp_bnf_fwd;                  /* Static branch prediction for l.bnf uses forward prediction */

    int sbp_bf_fwd;                   /* Static branch prediction for l.bf uses forward prediction */

    int btic;                         /* branch prediction target insn cache analysis */

    int missdelay;                    /* How much cycles does the miss cost */

    int hitdelay;                     /* How much cycles does the hit cost */

#if 0                                 

    int nways;                        /* Number of BP ways */

    int nsets;                        /* Number of BP sets */

    int blocksize;                    /* BP entry size */

    int ustates;                      /* number of BP usage states */

    int pstates;                      /* number of BP predict states */

#endif                                

  } bpb;

  struct {

    unsigned long upr;                /* Unit present register */

    unsigned long cfgr;               /* CPU configuration register */

    unsigned long ver, rev;           /* Version register */

    int sr;                           /* Supervision register */

    int superscalar;                  /* superscalara analysis */

    int hazards;                      /* dependency hazards analysis */

    int dependstats;                  /* dependency statistics */

    int sbuf_len;                     /* length of store buffer, zero if disabled */

  } cpu;

  struct {

    int debug;                        /* Simulator debugging */

    int verbose;                      /* Force verbose output */

    int profile;                      /* Is profiler running */

    char prof_fn[STR_SIZE];           /* Profiler filename */

    int mprofile;                     /* Is memory profiler running */

    char mprof_fn[STR_SIZE];          /* Memory profiler filename */

    int history;                      /* instruction stream history analysis */

    int exe_log;                      /* Print out RTL states? */

    int exe_log_type;                 /* Type of log */

    long long int exe_log_start;      /* First instruction to log */

    long long int exe_log_end;        /* Last instruction to log, -1 if continuous */

    int exe_log_marker;               /* If nonzero, place markers before each exe_log_marker instructions */

    char exe_log_fn[STR_SIZE];        /* RTL state comparison filename */

    char fstdout[STR_SIZE];           /* stdout filename */

    long clkcycle_ps;                 /* Clock duration in ps */

    long system_kfreq;                /* System frequency in kHz*/

  } sim;

  struct {

    int enabled;                      /* Is debug module enabled */

    int gdb_enabled;                  /* Is debugging with gdb possible */

    int server_port;                  /* A user specified port for services */

    unsigned long      vapi_id;       /* "Fake" vapi dev id for JTAG proxy */

    unsigned long int  cfgr;          /* JPB: Debug config SPR */

  } debug;

  struct {                            /* Verification API, part of Advanced Core Verification */

    int enabled;                      /* Whether is VAPI module enabled */

    int server_port;                  /* A user specified port number for services */

    int log_enabled;                  /* Whether to log the vapi requests */

    int hide_device_id;               /* Whether to log device ID for each request */

    char vapi_fn[STR_SIZE];           /* vapi log filename */

  } vapi;

  struct {

    int enabled;                      /* Whether power menagement is operational */

  } pm;

  struct {

    char timings_fn[STR_SIZE];        /* Filename of the timing table */

    int memory_order;                 /* Memory access stricness */

    int calling_convention;           /* Whether functions follow standard calling convention */

    int enable_bursts;                /* Whether burst are enabled */

    int no_multicycle;                /* When enabled no multicycle paths are generated */

  } cuc;

};

struct runtime {

  struct {

    FILE *fprof;                      /* Profiler file */

    FILE *fmprof;                     /* Memory profiler file */

    FILE *fexe_log;                   /* RTL state comparison file */

    FILE *fout;                       /* file for standard output */

    int init;                         /* Whether we are still initilizing sim */

    int script_file_specified;        /* Whether script file was already loaded */

    char *filename;                   /* Original Command Simulator file (CZ) */

    char script_fn[STR_SIZE];         /* Script file read */

    int iprompt;                      /* Interactive prompt */

    int iprompt_run;                  /* Interactive prompt is running */

    long long cycles;                 /* Cycles counts fetch stages */

    long long int  end_cycles;        /* JPB. Cycles to end of quantum */

    double         time_point;        /* JPB. Time point in the simulation */

    unsigned long int  ext_int;       /* JPB. External interrupt flags */

    int mem_cycles;                   /* Each cycle has counter of mem_cycles;

                                         this value is joined with cycles

                                         at the end of the cycle; no sim

                                         originated memory accesses should be

                                         performed inbetween. */

    int loadcycles;                   /* Load and store stalls */

    int storecycles;

    long long reset_cycles;

    int hush;                         /* Is simulator to do reg dumps */

  } sim;

  /* Command line parameters */

  struct {

    int profile;                      /* Whether profiling was enabled */

    int mprofile;                     /* Whether memory profiling was enabled */

  } simcmd;

  struct {

    long long instructions;           /* Instructions executed */

    long long reset_instructions;

    int stalled;

    int hazardwait;                   /* how many cycles were wasted because of hazards */

    int supercycles;                  /* Superscalar cycles */

  } cpu;

  struct {                            /* Verification API, part of Advanced Core Verification */

    int enabled;                      /* Whether is VAPI module enabled */

    FILE *vapi_file;                  /* vapi file */

    int server_port;                  /* A user specified port number for services */

  } vapi;

/* CUC configuration parameters */

  struct {

    int mdelay[4];                  /* average memory delays in cycles

                                     {read single, read burst, write single, write burst} */

    double cycle_duration;          /* in ns */

  } cuc;

};

extern struct config config;

#define PRINTF(x...) fprintf (runtime.sim.fout, x)

extern struct runtime runtime;

/* Read environment from a script file. Does not fail - assumes defaukt configuration instead. */

void read_script_file (char *filename);

/* Executes set sim command.  Returns nonzero if error.  */

void set_config_command (int argc, char **argv);

void init_defconfig(void);

int parse_args(int argc, char *argv[]);

void print_config(void);

void sim_done(void);

/* Periodically checks runtime.sim.iprompt to see if ctrl_c has been pressed */

void check_int(void *dat);

/* Number of cycles between checks to runtime.sim.iprompt */

#define CHECK_INT_TIME 100000

/* Resets all subunits */

void sim_reset(void);

/* Handle the sim commandline */

void handle_sim_command(void);

/* Registers a new reset hook, called when sim_reset below is called */

void reg_sim_reset(void (*reset_hook)(void *), void *dat);

/* Registers a status printing callback */

void reg_sim_stat(void (*stat_func)(void *dat), void *dat);

union param_val {

  char *str_val;

  int int_val;

  long long int longlong_val;

  oraddr_t addr_val;

};

enum param_t {

  paramt_none = 0, /* No parameter */

  paramt_str, /* String parameter enclosed in double quotes (") */

  paramt_word, /* String parameter NOT enclosed in double quotes */

  paramt_int, /* Integer parameter */

  paramt_longlong, /* Long long int parameter */

  paramt_addr /* Address parameter */

};

struct config_section {

  char *name;

  void *(*sec_start)(void);

  void (*sec_end)(void *);

  void *dat;

  struct config_param *params;

  struct config_section *next;

};

/* Register a parameter in a section of the config file */

void reg_config_param(struct config_section *sec, const char *param,

                      enum param_t type,

                      void (*param_cb)(union param_val, void*));

/* Register a section in the config file */

struct config_section *reg_config_sec(const char *section,

                                      void *(*sec_start)(void),

                                      void (*sec_end)(void *));

extern struct config_section *cur_section;

#define CONFIG_ERROR(s) {fprintf (stderr, "ERROR: config.%s:%s\n", cur_section->name, s); if (runtime.sim.init) exit (1);}

/* FIXME: These will disapeer one day... */

void reg_pic_sec(void);

void reg_mc_sec(void);

void reg_generic_sec(void);             /* JPB */

void reg_uart_sec(void);

void reg_dma_sec(void);

void reg_memory_sec(void);

void reg_debug_sec(void);

void reg_vapi_sec(void);

void reg_ethernet_sec(void);

void reg_immu_sec(void);

void reg_dmmu_sec(void);

void reg_ic_sec(void);

void reg_dc_sec(void);

void reg_gpio_sec(void);

void reg_bpb_sec(void);

void reg_pm_sec(void);

void reg_vga_sec(void);

void reg_fb_sec(void);

void reg_kbd_sec(void);

void reg_ata_sec(void);

void reg_cuc_sec(void);

void reg_config_secs(void);

#endif