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/* |
/* |
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* Copyright (C) 2005 Anders Gavare. All rights reserved. |
* Copyright (C) 2005-2007 Anders Gavare. All rights reserved. |
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* |
* |
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* Redistribution and use in source and binary forms, with or without |
* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are met: |
* modification, are permitted provided that the following conditions are met: |
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* SUCH DAMAGE. |
* SUCH DAMAGE. |
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* |
* |
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* |
* |
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* $Id: cpu.c,v 1.298 2005/06/27 10:43:16 debug Exp $ |
* $Id: cpu.c,v 1.374 2007/04/10 17:26:19 debug Exp $ |
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* |
* |
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* Common routines for CPU emulation. (Not specific to any CPU type.) |
* Common routines for CPU emulation. (Not specific to any CPU type.) |
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*/ |
*/ |
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#include <stdio.h> |
#include <stdio.h> |
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#include <stdlib.h> |
#include <stdlib.h> |
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#include <sys/types.h> |
#include <sys/types.h> |
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#include <sys/mman.h> |
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#include <string.h> |
#include <string.h> |
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#include "cpu.h" |
#include "cpu.h" |
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#include "machine.h" |
#include "machine.h" |
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#include "memory.h" |
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#include "misc.h" |
#include "misc.h" |
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#include "settings.h" |
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extern int quiet_mode; |
extern size_t dyntrans_cache_size; |
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extern int show_opcode_statistics; |
extern int native_code_translation_enabled; |
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static struct cpu_family *first_cpu_family = NULL; |
static struct cpu_family *first_cpu_family = NULL; |
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* |
* |
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* Create a new cpu object. Each family is tried in sequence until a |
* Create a new cpu object. Each family is tried in sequence until a |
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* CPU family recognizes the cpu_type_name. |
* CPU family recognizes the cpu_type_name. |
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* |
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* If there was no match, NULL is returned. Otherwise, a pointer to an |
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* initialized cpu struct is returned. |
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*/ |
*/ |
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struct cpu *cpu_new(struct memory *mem, struct machine *machine, |
struct cpu *cpu_new(struct memory *mem, struct machine *machine, |
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int cpu_id, char *name) |
int cpu_id, char *name) |
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struct cpu *cpu; |
struct cpu *cpu; |
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struct cpu_family *fp; |
struct cpu_family *fp; |
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char *cpu_type_name; |
char *cpu_type_name; |
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char tmpstr[30]; |
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if (name == NULL) { |
if (name == NULL) { |
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fprintf(stderr, "cpu_new(): cpu name = NULL?\n"); |
fprintf(stderr, "cpu_new(): cpu name = NULL?\n"); |
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exit(1); |
exit(1); |
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} |
} |
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cpu = malloc(sizeof(struct cpu)); |
cpu = zeroed_alloc(sizeof(struct cpu)); |
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if (cpu == NULL) { |
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fprintf(stderr, "out of memory\n"); |
cpu->path = malloc(strlen(machine->path) + 15); |
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if (cpu->path == NULL) { |
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fprintf(stderr, "cpu_new(): out of memory\n"); |
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exit(1); |
exit(1); |
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} |
} |
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snprintf(cpu->path, strlen(machine->path) + 15, |
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"%s.cpu[%i]", machine->path, cpu_id); |
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cpu->memory_rw = NULL; |
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cpu->name = cpu_type_name; |
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cpu->mem = mem; |
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cpu->machine = machine; |
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cpu->cpu_id = cpu_id; |
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cpu->byte_order = EMUL_UNDEFINED_ENDIAN; |
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cpu->running = 0; |
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/* Create settings, and attach to the machine: */ |
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cpu->settings = settings_new(); |
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snprintf(tmpstr, sizeof(tmpstr), "cpu[%i]", cpu_id); |
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settings_add(machine->settings, tmpstr, 1, |
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SETTINGS_TYPE_SUBSETTINGS, 0, cpu->settings); |
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settings_add(cpu->settings, "name", 0, SETTINGS_TYPE_STRING, |
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SETTINGS_FORMAT_STRING, (void *) &cpu->name); |
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settings_add(cpu->settings, "running", 0, SETTINGS_TYPE_INT, |
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SETTINGS_FORMAT_YESNO, (void *) &cpu->running); |
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memset(cpu, 0, sizeof(struct cpu)); |
cpu_create_or_reset_tc(cpu); |
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cpu->memory_rw = NULL; |
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cpu->name = cpu_type_name; |
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cpu->mem = mem; |
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cpu->machine = machine; |
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cpu->cpu_id = cpu_id; |
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cpu->byte_order = EMUL_LITTLE_ENDIAN; |
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cpu->bootstrap_cpu_flag = 0; |
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cpu->running = 0; |
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fp = first_cpu_family; |
fp = first_cpu_family; |
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"NULL\n"); |
"NULL\n"); |
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exit(1); |
exit(1); |
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} |
} |
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return cpu; |
break; |
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} |
} |
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} |
} |
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fp = fp->next; |
fp = fp->next; |
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} |
} |
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fatal("\ncpu_new(): unknown cpu type '%s'\n", cpu_type_name); |
if (fp == NULL) { |
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exit(1); |
fatal("\ncpu_new(): unknown cpu type '%s'\n", cpu_type_name); |
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return NULL; |
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} |
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fp->init_tables(cpu); |
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if (cpu->byte_order == EMUL_UNDEFINED_ENDIAN) { |
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fatal("\ncpu_new(): Internal bug: Endianness not set.\n"); |
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exit(1); |
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} |
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return cpu; |
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} |
} |
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/* |
/* |
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* cpu_show_full_statistics(): |
* cpu_destroy(): |
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* |
* |
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* Show detailed statistics on opcode usage on each cpu. |
* Destroy a cpu object. |
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*/ |
*/ |
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void cpu_show_full_statistics(struct machine *m) |
void cpu_destroy(struct cpu *cpu) |
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{ |
{ |
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if (m->cpu_family == NULL || |
settings_remove(cpu->settings, "name"); |
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m->cpu_family->show_full_statistics == NULL) |
settings_remove(cpu->settings, "running"); |
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fatal("cpu_show_full_statistics(): NULL\n"); |
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else |
/* Remove any remaining level-1 settings: */ |
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m->cpu_family->show_full_statistics(m); |
settings_remove_all(cpu->settings); |
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settings_destroy(cpu->settings); |
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if (cpu->path != NULL) |
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free(cpu->path); |
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/* TODO: This assumes that zeroed_alloc() actually succeeded |
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with using mmap(), and not malloc()! */ |
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munmap((void *)cpu, sizeof(struct cpu)); |
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} |
} |
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/* |
/* |
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* cpu_register_match(): |
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* |
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* Used by the debugger. |
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*/ |
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void cpu_register_match(struct machine *m, char *name, |
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int writeflag, uint64_t *valuep, int *match_register) |
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{ |
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if (m->cpu_family == NULL || m->cpu_family->register_match == NULL) |
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fatal("cpu_register_match(): NULL\n"); |
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else |
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m->cpu_family->register_match(m, name, writeflag, |
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valuep, match_register); |
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} |
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/* |
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* cpu_disassemble_instr(): |
* cpu_disassemble_instr(): |
190 |
* |
* |
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* Convert an instruction word into human readable format, for instruction |
* Convert an instruction word into human readable format, for instruction |
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* tracing. |
* tracing. |
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*/ |
*/ |
194 |
int cpu_disassemble_instr(struct machine *m, struct cpu *cpu, |
int cpu_disassemble_instr(struct machine *m, struct cpu *cpu, |
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unsigned char *instr, int running, uint64_t addr, int bintrans) |
unsigned char *instr, int running, uint64_t addr) |
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{ |
{ |
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if (m->cpu_family == NULL || m->cpu_family->disassemble_instr == NULL) { |
if (m->cpu_family == NULL || m->cpu_family->disassemble_instr == NULL) { |
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fatal("cpu_disassemble_instr(): NULL\n"); |
fatal("cpu_disassemble_instr(): NULL\n"); |
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return 0; |
return 0; |
200 |
} else |
} else |
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return m->cpu_family->disassemble_instr(cpu, instr, |
return m->cpu_family->disassemble_instr(cpu, instr, |
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running, addr, bintrans); |
running, addr); |
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} |
} |
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* |
* |
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* Dump cpu registers in a relatively readable format. |
* Dump cpu registers in a relatively readable format. |
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* |
* |
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* gprs: set to non-zero to dump GPRs. (CPU dependant.) |
* gprs: set to non-zero to dump GPRs. (CPU dependent.) |
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* coprocs: set bit 0..x to dump registers in coproc 0..x. (CPU dependant.) |
* coprocs: set bit 0..x to dump registers in coproc 0..x. (CPU dependent.) |
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*/ |
*/ |
214 |
void cpu_register_dump(struct machine *m, struct cpu *cpu, |
void cpu_register_dump(struct machine *m, struct cpu *cpu, |
215 |
int gprs, int coprocs) |
int gprs, int coprocs) |
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/* |
/* |
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* cpu_interrupt(): |
* cpu_functioncall_trace(): |
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* |
* |
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* Assert an interrupt. |
* This function should be called if machine->show_trace_tree is enabled, and |
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* Return value is 1 if the interrupt was asserted, 0 otherwise. |
* a function call is being made. f contains the address of the function. |
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*/ |
*/ |
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int cpu_interrupt(struct cpu *cpu, uint64_t irq_nr) |
void cpu_functioncall_trace(struct cpu *cpu, uint64_t f) |
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{ |
{ |
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if (cpu->machine->cpu_family == NULL || |
int i, n_args = -1; |
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cpu->machine->cpu_family->interrupt == NULL) { |
char *symbol; |
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fatal("cpu_interrupt(): NULL\n"); |
uint64_t offset; |
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return 0; |
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} else |
if (cpu->machine->ncpus > 1) |
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return cpu->machine->cpu_family->interrupt(cpu, irq_nr); |
fatal("cpu%i:\t", cpu->cpu_id); |
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cpu->trace_tree_depth ++; |
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if (cpu->trace_tree_depth > 100) |
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cpu->trace_tree_depth = 100; |
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for (i=0; i<cpu->trace_tree_depth; i++) |
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fatal(" "); |
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fatal("<"); |
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symbol = get_symbol_name_and_n_args(&cpu->machine->symbol_context, |
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f, &offset, &n_args); |
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if (symbol != NULL) |
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fatal("%s", symbol); |
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else { |
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if (cpu->is_32bit) |
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fatal("0x%"PRIx32, (uint32_t) f); |
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else |
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fatal("0x%"PRIx64, (uint64_t) f); |
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} |
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fatal("("); |
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if (cpu->machine->cpu_family->functioncall_trace != NULL) |
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cpu->machine->cpu_family->functioncall_trace(cpu, f, n_args); |
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fatal(")>\n"); |
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#ifdef PRINT_MEMORY_CHECKSUM |
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/* Temporary hack for finding bugs: */ |
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fatal("call chksum=%016"PRIx64"\n", memory_checksum(cpu->mem)); |
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#endif |
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} |
} |
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/* |
/* |
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* cpu_interrupt_ack(): |
* cpu_functioncall_trace_return(): |
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* |
* |
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* Acknowledge an interrupt. |
* This function should be called if machine->show_trace_tree is enabled, and |
274 |
* Return value is 1 if the interrupt was deasserted, 0 otherwise. |
* a function is being returned from. |
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* |
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* TODO: Print return value? This could be implemented similar to the |
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* cpu->functioncall_trace function call above. |
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*/ |
*/ |
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int cpu_interrupt_ack(struct cpu *cpu, uint64_t irq_nr) |
void cpu_functioncall_trace_return(struct cpu *cpu) |
280 |
{ |
{ |
281 |
if (cpu->machine->cpu_family == NULL || |
cpu->trace_tree_depth --; |
282 |
cpu->machine->cpu_family->interrupt_ack == NULL) { |
if (cpu->trace_tree_depth < 0) |
283 |
/* debug("cpu_interrupt_ack(): NULL\n"); */ |
cpu->trace_tree_depth = 0; |
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return 0; |
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} else |
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return cpu->machine->cpu_family->interrupt_ack(cpu, irq_nr); |
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} |
} |
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/* |
/* |
288 |
* cpu_run(): |
* cpu_create_or_reset_tc(): |
289 |
* |
* |
290 |
* Run instructions on all CPUs in this machine, for a "medium duration" |
* Create the translation cache in memory (ie allocate memory for it), if |
291 |
* (or until all CPUs have halted). |
* necessary, and then reset it to an initial state. |
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* |
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* Return value is 1 if anything happened, 0 if all CPUs are stopped. |
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292 |
*/ |
*/ |
293 |
int cpu_run(struct emul *emul, struct machine *m) |
void cpu_create_or_reset_tc(struct cpu *cpu) |
294 |
{ |
{ |
295 |
if (m->cpu_family == NULL || m->cpu_family->run == NULL) { |
size_t s = dyntrans_cache_size + DYNTRANS_CACHE_MARGIN; |
296 |
fatal("cpu_run(): NULL\n"); |
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return 0; |
if (cpu->translation_cache == NULL) { |
298 |
} else |
cpu->translation_cache = zeroed_alloc(s); |
299 |
return m->cpu_family->run(emul, m); |
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#ifdef NATIVE_CODE_GENERATION |
301 |
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if (native_code_translation_enabled) { |
302 |
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mprotect(cpu->translation_cache, s, |
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PROT_READ | PROT_WRITE | PROT_EXEC); |
304 |
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} |
305 |
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#endif |
306 |
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} |
307 |
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#ifdef NATIVE_CODE_GENERATION |
309 |
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if (native_code_translation_enabled && cpu->inr.inr_entries == NULL) |
310 |
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cpu->inr.inr_entries = zeroed_alloc( |
311 |
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sizeof(struct inr_entry) * INR_MAX_ENTRIES); |
312 |
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313 |
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cpu->inr.nr_inr_entries_used = 0; |
314 |
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#endif |
315 |
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316 |
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/* Create an empty table at the beginning of the translation cache: */ |
317 |
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memset(cpu->translation_cache, 0, sizeof(uint32_t) |
318 |
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* N_BASE_TABLE_ENTRIES); |
319 |
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320 |
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cpu->translation_cache_cur_ofs = |
321 |
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N_BASE_TABLE_ENTRIES * sizeof(uint32_t); |
322 |
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/* |
324 |
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* There might be other translation pointers that still point to |
325 |
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* within the translation_cache region. Let's invalidate those too: |
326 |
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*/ |
327 |
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if (cpu->invalidate_code_translation != NULL) |
328 |
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cpu->invalidate_code_translation(cpu, 0, INVALIDATE_ALL); |
329 |
} |
} |
330 |
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331 |
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* cpu_dumpinfo(): |
* cpu_dumpinfo(): |
334 |
* |
* |
335 |
* Dumps info about a CPU using debug(). "cpu0: CPUNAME, running" (or similar) |
* Dumps info about a CPU using debug(). "cpu0: CPUNAME, running" (or similar) |
336 |
* is outputed, and it is up to CPU dependant code to complete the line. |
* is outputed, and it is up to CPU dependent code to complete the line. |
337 |
*/ |
*/ |
338 |
void cpu_dumpinfo(struct machine *m, struct cpu *cpu) |
void cpu_dumpinfo(struct machine *m, struct cpu *cpu) |
339 |
{ |
{ |
355 |
void cpu_list_available_types(void) |
void cpu_list_available_types(void) |
356 |
{ |
{ |
357 |
struct cpu_family *fp; |
struct cpu_family *fp; |
358 |
int iadd = 4; |
int iadd = DEBUG_INDENTATION; |
359 |
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360 |
fp = first_cpu_family; |
fp = first_cpu_family; |
361 |
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385 |
* Shuts down all CPUs in a machine when ending a simulation. (This function |
* Shuts down all CPUs in a machine when ending a simulation. (This function |
386 |
* should only need to be called once for each machine.) |
* should only need to be called once for each machine.) |
387 |
*/ |
*/ |
388 |
void cpu_run_deinit(struct emul *emul, struct machine *machine) |
void cpu_run_deinit(struct machine *machine) |
389 |
{ |
{ |
390 |
int te; |
int te; |
391 |
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392 |
/* |
/* |
393 |
* Two last ticks of every hardware device. This will allow |
* Two last ticks of every hardware device. This will allow e.g. |
394 |
* framebuffers to draw the last updates to the screen before |
* framebuffers to draw the last updates to the screen before halting. |
395 |
* halting. |
* |
396 |
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* TODO: This should be refactored when redesigning the mainbus |
397 |
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* concepts! |
398 |
*/ |
*/ |
399 |
for (te=0; te<machine->n_tick_entries; te++) { |
for (te=0; te<machine->n_tick_entries; te++) { |
400 |
machine->tick_func[te](machine->cpus[0], |
machine->tick_func[te](machine->cpus[0], |
403 |
machine->tick_extra[te]); |
machine->tick_extra[te]); |
404 |
} |
} |
405 |
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406 |
debug("cpu_run_deinit(): All CPUs halted.\n"); |
if (machine->show_nr_of_instructions) |
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if (machine->show_nr_of_instructions || !quiet_mode) |
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407 |
cpu_show_cycles(machine, 1); |
cpu_show_cycles(machine, 1); |
408 |
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if (show_opcode_statistics) |
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cpu_show_full_statistics(machine); |
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409 |
fflush(stdout); |
fflush(stdout); |
410 |
} |
} |
411 |
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413 |
/* |
/* |
414 |
* cpu_show_cycles(): |
* cpu_show_cycles(): |
415 |
* |
* |
416 |
* If automatic adjustment of clock interrupts is turned on, then recalculate |
* If show_nr_of_instructions is on, then print a line to stdout about how |
417 |
* emulated_hz. Also, if show_nr_of_instructions is on, then print a |
* many instructions/cycles have been executed so far. |
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* line to stdout about how many instructions/cycles have been executed so |
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* far. |
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418 |
*/ |
*/ |
419 |
void cpu_show_cycles(struct machine *machine, int forced) |
void cpu_show_cycles(struct machine *machine, int forced) |
420 |
{ |
{ |
421 |
uint64_t offset, pc; |
uint64_t offset, pc; |
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int is_32bit = 0, instrs_per_cycle = 1; |
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422 |
char *symbol; |
char *symbol; |
423 |
int64_t mseconds, ninstrs; |
int64_t mseconds, ninstrs, is, avg; |
424 |
struct timeval tv; |
struct timeval tv; |
425 |
int h, m, s, ms, d; |
struct cpu *cpu = machine->cpus[machine->bootstrap_cpu]; |
426 |
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427 |
static int64_t mseconds_last = 0; |
static int64_t mseconds_last = 0; |
428 |
static int64_t ninstrs_last = -1; |
static int64_t ninstrs_last = -1; |
429 |
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430 |
switch (machine->arch) { |
pc = cpu->pc; |
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case ARCH_MIPS: |
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if (machine->cpus[machine->bootstrap_cpu]->cd.mips. |
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cpu_type.isa_level < 3 || machine->cpus[machine-> |
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bootstrap_cpu]->cd.mips.cpu_type.isa_level == 32) |
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is_32bit = 1; |
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instrs_per_cycle = machine->cpus[machine->bootstrap_cpu]-> |
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cd.mips.cpu_type.instrs_per_cycle; |
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break; |
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case ARCH_ARM: |
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is_32bit = 1; |
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break; |
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} |
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pc = machine->cpus[machine->bootstrap_cpu]->pc; |
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431 |
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432 |
gettimeofday(&tv, NULL); |
gettimeofday(&tv, NULL); |
433 |
mseconds = (tv.tv_sec - machine->starttime.tv_sec) * 1000 |
mseconds = (tv.tv_sec - machine->starttime.tv_sec) * 1000 |
439 |
if (mseconds - mseconds_last == 0) |
if (mseconds - mseconds_last == 0) |
440 |
mseconds ++; |
mseconds ++; |
441 |
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442 |
ninstrs = machine->ncycles_since_gettimeofday * instrs_per_cycle; |
ninstrs = machine->ninstrs_since_gettimeofday; |
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if (machine->automatic_clock_adjustment) { |
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static int first_adjustment = 1; |
|
|
|
|
|
/* Current nr of cycles per second: */ |
|
|
int64_t cur_cycles_per_second = 1000 * |
|
|
(ninstrs-ninstrs_last) / (mseconds-mseconds_last) |
|
|
/ instrs_per_cycle; |
|
|
|
|
|
if (cur_cycles_per_second < 1000000) |
|
|
cur_cycles_per_second = 1000000; |
|
|
|
|
|
if (first_adjustment) { |
|
|
machine->emulated_hz = cur_cycles_per_second; |
|
|
first_adjustment = 0; |
|
|
} else { |
|
|
machine->emulated_hz = (15 * machine->emulated_hz + |
|
|
cur_cycles_per_second) / 16; |
|
|
} |
|
|
|
|
|
debug("[ updating emulated_hz to %lli Hz ]\n", |
|
|
(long long)machine->emulated_hz); |
|
|
} |
|
|
|
|
443 |
|
|
444 |
/* RETURN here, unless show_nr_of_instructions (-N) is turned on: */ |
/* RETURN here, unless show_nr_of_instructions (-N) is turned on: */ |
445 |
if (!machine->show_nr_of_instructions && !forced) |
if (!machine->show_nr_of_instructions && !forced) |
446 |
goto do_return; |
goto do_return; |
447 |
|
|
448 |
printf("[ %lli instrs", |
printf("[ %"PRIi64" instrs", (int64_t)machine->ninstrs); |
|
(long long)(machine->ncycles * instrs_per_cycle)); |
|
|
|
|
|
if (!machine->automatic_clock_adjustment) { |
|
|
d = machine->emulated_hz / 1000; |
|
|
if (d < 1) |
|
|
d = 1; |
|
|
ms = machine->ncycles / d; |
|
|
h = ms / 3600000; |
|
|
ms -= 3600000 * h; |
|
|
m = ms / 60000; |
|
|
ms -= 60000 * m; |
|
|
s = ms / 1000; |
|
|
ms -= 1000 * s; |
|
|
|
|
|
printf("emulated time = %02i:%02i:%02i.%03i; ", h, m, s, ms); |
|
|
} |
|
449 |
|
|
450 |
/* Instructions per second, and average so far: */ |
/* Instructions per second, and average so far: */ |
451 |
printf("; i/s=%lli avg=%lli; ", |
is = 1000 * (ninstrs-ninstrs_last) / (mseconds-mseconds_last); |
452 |
(long long) ((long long)1000 * (ninstrs-ninstrs_last) |
avg = (long long)1000 * ninstrs / mseconds; |
453 |
/ (mseconds-mseconds_last)), |
if (is < 0) |
454 |
(long long) ((long long)1000 * ninstrs / mseconds)); |
is = 0; |
455 |
|
if (avg < 0) |
456 |
|
avg = 0; |
457 |
|
|
458 |
|
if (cpu->has_been_idling) { |
459 |
|
printf("; idling"); |
460 |
|
cpu->has_been_idling = 0; |
461 |
|
} else |
462 |
|
printf("; i/s=%"PRIi64" avg=%"PRIi64, is, avg); |
463 |
|
|
464 |
symbol = get_symbol_name(&machine->symbol_context, pc, &offset); |
symbol = get_symbol_name(&machine->symbol_context, pc, &offset); |
465 |
|
|
466 |
if (is_32bit) |
if (machine->ncpus == 1) { |
467 |
printf("pc=0x%08x", (int)pc); |
if (cpu->is_32bit) |
468 |
else |
printf("; pc=0x%08"PRIx32, (uint32_t) pc); |
469 |
printf("pc=0x%016llx", (long long)pc); |
else |
470 |
|
printf("; pc=0x%016"PRIx64, (uint64_t) pc); |
471 |
|
} |
472 |
|
|
473 |
if (symbol != NULL) |
if (symbol != NULL) |
474 |
printf(" <%s>", symbol); |
printf(" <%s>", symbol); |
486 |
* Prepare to run instructions on all CPUs in this machine. (This function |
* Prepare to run instructions on all CPUs in this machine. (This function |
487 |
* should only need to be called once for each machine.) |
* should only need to be called once for each machine.) |
488 |
*/ |
*/ |
489 |
void cpu_run_init(struct emul *emul, struct machine *machine) |
void cpu_run_init(struct machine *machine) |
490 |
{ |
{ |
491 |
int ncpus = machine->ncpus; |
machine->ninstrs_flush = 0; |
492 |
int te; |
machine->ninstrs = 0; |
493 |
|
machine->ninstrs_show = 0; |
|
machine->a_few_cycles = 1048576; |
|
|
machine->ncycles_flush = 0; |
|
|
machine->ncycles = 0; |
|
|
machine->ncycles_show = 0; |
|
|
|
|
|
/* |
|
|
* Instead of doing { one cycle, check hardware ticks }, we |
|
|
* can do { n cycles, check hardware ticks }, as long as |
|
|
* n is at most as much as the lowest number of cycles/tick |
|
|
* for any hardware device. |
|
|
*/ |
|
|
for (te=0; te<machine->n_tick_entries; te++) { |
|
|
if (machine->ticks_reset_value[te] < machine->a_few_cycles) |
|
|
machine->a_few_cycles = machine->ticks_reset_value[te]; |
|
|
} |
|
|
|
|
|
machine->a_few_cycles >>= 1; |
|
|
if (machine->a_few_cycles < 1) |
|
|
machine->a_few_cycles = 1; |
|
|
|
|
|
if (ncpus > 1 && machine->max_random_cycles_per_chunk == 0) |
|
|
machine->a_few_cycles = 1; |
|
|
|
|
|
/* debug("cpu_run_init(): a_few_cycles = %i\n", |
|
|
machine->a_few_cycles); */ |
|
494 |
|
|
495 |
/* For performance measurement: */ |
/* For performance measurement: */ |
496 |
gettimeofday(&machine->starttime, NULL); |
gettimeofday(&machine->starttime, NULL); |
497 |
machine->ncycles_since_gettimeofday = 0; |
machine->ninstrs_since_gettimeofday = 0; |
498 |
} |
} |
499 |
|
|
500 |
|
|
567 |
* cpu_init(): |
* cpu_init(): |
568 |
* |
* |
569 |
* Should be called before any other cpu_*() function. |
* Should be called before any other cpu_*() function. |
570 |
|
* |
571 |
|
* TODO: Make this nicer by moving out the conditional stuff to |
572 |
|
* an automagically generated file? Or a define in config.h? |
573 |
*/ |
*/ |
574 |
void cpu_init(void) |
void cpu_init(void) |
575 |
{ |
{ |
576 |
/* Note: These are registered in alphabetic order. */ |
/* Note: These are registered in alphabetic order. */ |
577 |
|
|
578 |
|
#ifdef ENABLE_ALPHA |
579 |
|
add_cpu_family(alpha_cpu_family_init, ARCH_ALPHA); |
580 |
|
#endif |
581 |
|
|
582 |
|
#ifdef ENABLE_ARM |
583 |
add_cpu_family(arm_cpu_family_init, ARCH_ARM); |
add_cpu_family(arm_cpu_family_init, ARCH_ARM); |
584 |
|
#endif |
585 |
|
|
586 |
|
#ifdef ENABLE_AVR |
587 |
|
add_cpu_family(avr_cpu_family_init, ARCH_AVR); |
588 |
|
#endif |
589 |
|
|
590 |
|
#ifdef ENABLE_M68K |
591 |
|
add_cpu_family(m68k_cpu_family_init, ARCH_M68K); |
592 |
|
#endif |
593 |
|
|
594 |
|
#ifdef ENABLE_MIPS |
595 |
add_cpu_family(mips_cpu_family_init, ARCH_MIPS); |
add_cpu_family(mips_cpu_family_init, ARCH_MIPS); |
596 |
|
#endif |
597 |
|
|
598 |
|
#ifdef ENABLE_PPC |
599 |
add_cpu_family(ppc_cpu_family_init, ARCH_PPC); |
add_cpu_family(ppc_cpu_family_init, ARCH_PPC); |
600 |
add_cpu_family(urisc_cpu_family_init, ARCH_URISC); |
#endif |
601 |
add_cpu_family(x86_cpu_family_init, ARCH_X86); |
|
602 |
|
#ifdef ENABLE_SH |
603 |
|
add_cpu_family(sh_cpu_family_init, ARCH_SH); |
604 |
|
#endif |
605 |
|
|
606 |
|
#ifdef ENABLE_SPARC |
607 |
|
add_cpu_family(sparc_cpu_family_init, ARCH_SPARC); |
608 |
|
#endif |
609 |
} |
} |
610 |
|
|