/[dynamips]/trunk/cpu.h
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upstream/dynamips-0.2.6-RC1/cpu.h revision 2 by dpavlin, Sat Oct 6 16:03:58 2007 UTC trunk/cpu.h revision 12 by dpavlin, Sat Oct 6 16:45:40 2007 UTC
# Line 1  Line 1 
1  /*  /*
2   * Cisco 7200 (Predator) simulation platform.   * Cisco router simulation platform.
3   * Copyright (c) 2005,2006 Christophe Fillot (cf@utc.fr)   * Copyright (c) 2005,2006 Christophe Fillot (cf@utc.fr)
4   */   */
5    
6  #ifndef __CPU_H__  #ifndef __CPU_H__
7  #define __CPU_H__  #define __CPU_H__
8    
9    #include <pthread.h>
10    #include <setjmp.h>
11    #include "utils.h"
12    #include "jit_op.h"
13    
14  #include "mips64.h"  #include "mips64.h"
15    #include "mips64_cp0.h"
16    #include "ppc32.h"
17    
18    /* Possible CPU types */
19    enum {
20       CPU_TYPE_MIPS64 = 1,
21       CPU_TYPE_PPC32,
22    };
23    
24    /* Virtual CPU states */
25    enum {
26       CPU_STATE_RUNNING = 0,
27       CPU_STATE_HALTED,
28       CPU_STATE_SUSPENDED,
29    };
30    
31    /* Maximum results for idle pc */
32    #define CPU_IDLE_PC_MAX_RES  10
33    
34    /* Idle PC proposed value */
35    struct cpu_idle_pc {
36       m_uint64_t pc;
37       u_int count;
38    };
39    
40    /* Number of recorded memory accesses (power of two) */
41    #define MEMLOG_COUNT   16
42    
43    typedef struct memlog_access memlog_access_t;
44    struct memlog_access {
45       m_uint64_t iaddr;
46       m_uint64_t vaddr;
47       m_uint64_t data;
48       m_uint32_t data_valid;
49       m_uint32_t op_size;
50       m_uint32_t op_type;
51    };
52    
53    /* Undefined memory access handler */
54    typedef int (*cpu_undefined_mem_handler_t)(cpu_gen_t *cpu,m_uint64_t vaddr,
55                                               u_int op_size,u_int op_type,
56                                               m_uint64_t *data);
57    
58    /* Generic CPU definition */
59    struct cpu_gen {
60       /* CPU type and identifier for MP systems */
61       u_int type,id;
62    
63       /* CPU states */
64       volatile u_int state,prev_state;
65       volatile m_uint64_t seq_state;
66    
67       /* Thread running this CPU */
68       pthread_t cpu_thread;
69       int cpu_thread_running;
70    
71       /* Exception restore point */
72       jmp_buf exec_loop_env;
73    
74       /* "Idle" loop management */
75       u_int idle_count,idle_max,idle_sleep_time;
76       pthread_mutex_t idle_mutex;
77       pthread_cond_t idle_cond;
78    
79       /* VM instance */
80       vm_instance_t *vm;
81    
82       /* Next CPU in group */
83       cpu_gen_t *next;
84    
85       /* Idle PC proposal */
86       struct cpu_idle_pc idle_pc_prop[CPU_IDLE_PC_MAX_RES];
87       u_int idle_pc_prop_count;
88    
89       /* Specific CPU part */
90       union {
91          cpu_mips_t mips64_cpu;
92          cpu_ppc_t ppc32_cpu;
93       }sp;
94    
95       /* Methods */
96       void (*reg_set)(cpu_gen_t *cpu,u_int reg_index,m_uint64_t val);
97       void (*reg_dump)(cpu_gen_t *cpu);
98       void (*mmu_dump)(cpu_gen_t *cpu);
99       void (*mmu_raw_dump)(cpu_gen_t *cpu);
100       void (*add_breakpoint)(cpu_gen_t *cpu,m_uint64_t addr);
101       void (*remove_breakpoint)(cpu_gen_t *cpu,m_uint64_t addr);
102       void (*set_idle_pc)(cpu_gen_t *cpu,m_uint64_t addr);
103       void (*get_idling_pc)(cpu_gen_t *cpu);  
104       void (*mts_rebuild)(cpu_gen_t *cpu);
105       void (*mts_show_stats)(cpu_gen_t *cpu);
106    
107       cpu_undefined_mem_handler_t undef_mem_handler;
108    
109       /* Memory access log for fault debugging */
110       u_int memlog_pos;
111       memlog_access_t memlog_array[MEMLOG_COUNT];
112    
113       /* Statistics */
114       m_uint64_t dev_access_counter;
115    
116       /* JIT op array for current compiled page */
117       u_int jit_op_array_size;
118       jit_op_t **jit_op_array;
119       jit_op_t **jit_op_current;
120      
121       /* JIT op pool */
122       jit_op_t *jit_op_pool[JIT_OP_POOL_NR];
123    };
124    
125  /* CPU group definition */  /* CPU group definition */
126  typedef struct cpu_group cpu_group_t;  typedef struct cpu_group cpu_group_t;
127  struct cpu_group {  struct cpu_group {
128     char *name;     char *name;
129     cpu_mips_t *cpu_list;     cpu_gen_t *cpu_list;
130     void *priv_data;     void *priv_data;
131  };  };
132    
133    #define CPU_MIPS64(cpu) (&(cpu)->sp.mips64_cpu)
134    #define CPU_PPC32(cpu)  (&(cpu)->sp.ppc32_cpu)
135    
136    /* Get CPU instruction pointer */
137    static forced_inline m_uint64_t cpu_get_pc(cpu_gen_t *cpu)
138    {
139       switch(cpu->type) {
140          case CPU_TYPE_MIPS64:
141             return(CPU_MIPS64(cpu)->pc);
142          case CPU_TYPE_PPC32:
143             return((m_uint64_t)CPU_PPC32(cpu)->ia);
144          default:
145             return(0);
146       }
147    }
148    
149    /* Get CPU performance counter */
150    static forced_inline m_uint32_t cpu_get_perf_counter(cpu_gen_t *cpu)
151    {
152       switch(cpu->type) {
153          case CPU_TYPE_MIPS64:
154             return(CPU_MIPS64(cpu)->perf_counter);
155          case CPU_TYPE_PPC32:
156             return(CPU_PPC32(cpu)->perf_counter);
157          default:
158             return(0);
159       }
160    }
161    
162  /* Find a CPU in a group given its ID */  /* Find a CPU in a group given its ID */
163  cpu_mips_t *cpu_group_find_id(cpu_group_t *group,u_int id);  cpu_gen_t *cpu_group_find_id(cpu_group_t *group,u_int id);
164    
165  /* Find the highest CPU ID in a CPU group */  /* Find the highest CPU ID in a CPU group */
166  int cpu_group_find_highest_id(cpu_group_t *group,u_int *highest_id);  int cpu_group_find_highest_id(cpu_group_t *group,u_int *highest_id);
167    
168  /* Add a CPU in a CPU group */  /* Add a CPU in a CPU group */
169  int cpu_group_add(cpu_group_t *group,cpu_mips_t *cpu);  int cpu_group_add(cpu_group_t *group,cpu_gen_t *cpu);
170    
171  /* Create a new CPU group */  /* Create a new CPU group */
172  cpu_group_t *cpu_group_create(char *name);  cpu_group_t *cpu_group_create(char *name);
# Line 35  void cpu_group_delete(cpu_group_t *group Line 178  void cpu_group_delete(cpu_group_t *group
178  int cpu_group_rebuild_mts(cpu_group_t *group);  int cpu_group_rebuild_mts(cpu_group_t *group);
179    
180  /* Log a message for a CPU */  /* Log a message for a CPU */
181  void cpu_log(cpu_mips_t *cpu,char *module,char *format,...);  void cpu_log(cpu_gen_t *cpu,char *module,char *format,...);
182    
183  /* Create a new CPU */  /* Create a new CPU */
184  cpu_mips_t *cpu_create(vm_instance_t *vm,u_int id);  cpu_gen_t *cpu_create(vm_instance_t *vm,u_int type,u_int id);
185    
186  /* Delete a CPU */  /* Delete a CPU */
187  void cpu_delete(cpu_mips_t *cpu);  void cpu_delete(cpu_gen_t *cpu);
188    
189  /* Start a CPU */  /* Start a CPU */
190  void cpu_start(cpu_mips_t *cpu);  void cpu_start(cpu_gen_t *cpu);
191    
192  /* Stop a CPU */  /* Stop a CPU */
193  void cpu_stop(cpu_mips_t *cpu);  void cpu_stop(cpu_gen_t *cpu);
194    
195  /* Start all CPUs of a CPU group */  /* Start all CPUs of a CPU group */
196  void cpu_group_start_all_cpu(cpu_group_t *group);  void cpu_group_start_all_cpu(cpu_group_t *group);
# Line 67  int cpu_group_save_state(cpu_group_t *gr Line 210  int cpu_group_save_state(cpu_group_t *gr
210  /* Restore state of all CPUs */  /* Restore state of all CPUs */
211  int cpu_group_restore_state(cpu_group_t *group);  int cpu_group_restore_state(cpu_group_t *group);
212    
213    /* Virtual idle loop */
214    void cpu_idle_loop(cpu_gen_t *cpu);
215    
216    /* Break idle wait state */
217    void cpu_idle_break_wait(cpu_gen_t *cpu);
218    
219    /* Returns to the CPU exec loop */
220    static inline void cpu_exec_loop_enter(cpu_gen_t *cpu)
221    {
222       longjmp(cpu->exec_loop_env,1);
223    }
224    
225    /* Set the exec loop entry point */
226    #define cpu_exec_loop_set(cpu) setjmp((cpu)->exec_loop_env)
227    
228  #endif  #endif
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