1 |
/* |
2 |
* Cisco router simulation platform. |
3 |
* Copyright (c) 2005,2006 Christophe Fillot (cf@utc.fr) |
4 |
*/ |
5 |
|
6 |
#ifndef __CPU_H__ |
7 |
#define __CPU_H__ |
8 |
|
9 |
#include <pthread.h> |
10 |
#include "utils.h" |
11 |
|
12 |
/* Forward declaration for generic CPU type */ |
13 |
typedef struct cpu_gen cpu_gen_t; |
14 |
|
15 |
#include "mips64.h" |
16 |
#include "mips64_cp0.h" |
17 |
#include "ppc32.h" |
18 |
|
19 |
/* Possible CPU types */ |
20 |
enum { |
21 |
CPU_TYPE_MIPS64 = 1, |
22 |
CPU_TYPE_PPC32, |
23 |
}; |
24 |
|
25 |
/* Virtual CPU states */ |
26 |
enum { |
27 |
CPU_STATE_RUNNING = 0, |
28 |
CPU_STATE_HALTED, |
29 |
CPU_STATE_SUSPENDED, |
30 |
}; |
31 |
|
32 |
/* Maximum results for idle pc */ |
33 |
#define CPU_IDLE_PC_MAX_RES 10 |
34 |
|
35 |
/* Idle PC proposed value */ |
36 |
struct cpu_idle_pc { |
37 |
m_uint64_t pc; |
38 |
u_int count; |
39 |
}; |
40 |
|
41 |
/* Number of recorded memory accesses (power of two) */ |
42 |
#define MEMLOG_COUNT 16 |
43 |
|
44 |
typedef struct memlog_access memlog_access_t; |
45 |
struct memlog_access { |
46 |
m_uint64_t iaddr; |
47 |
m_uint64_t vaddr; |
48 |
m_uint64_t data; |
49 |
m_uint32_t data_valid; |
50 |
m_uint32_t op_size; |
51 |
m_uint32_t op_type; |
52 |
}; |
53 |
|
54 |
/* Generic CPU definition */ |
55 |
struct cpu_gen { |
56 |
/* CPU type and identifier for MP systems */ |
57 |
u_int type,id; |
58 |
|
59 |
/* CPU states */ |
60 |
volatile u_int state,prev_state; |
61 |
volatile m_uint64_t seq_state; |
62 |
|
63 |
/* Thread running this CPU */ |
64 |
pthread_t cpu_thread; |
65 |
int cpu_thread_running; |
66 |
|
67 |
/* "Idle" loop management */ |
68 |
u_int idle_count,idle_max,idle_sleep_time; |
69 |
pthread_mutex_t idle_mutex; |
70 |
pthread_cond_t idle_cond; |
71 |
|
72 |
/* VM instance */ |
73 |
vm_instance_t *vm; |
74 |
|
75 |
/* Next CPU in group */ |
76 |
cpu_gen_t *next; |
77 |
|
78 |
/* Idle PC proposal */ |
79 |
struct cpu_idle_pc idle_pc_prop[CPU_IDLE_PC_MAX_RES]; |
80 |
u_int idle_pc_prop_count; |
81 |
|
82 |
/* Specific CPU part */ |
83 |
union { |
84 |
cpu_mips_t mips64_cpu; |
85 |
cpu_ppc_t ppc32_cpu; |
86 |
}sp; |
87 |
|
88 |
/* Methods */ |
89 |
void (*reg_set)(cpu_gen_t *cpu,u_int reg_index,m_uint64_t val); |
90 |
void (*reg_dump)(cpu_gen_t *cpu); |
91 |
void (*mmu_dump)(cpu_gen_t *cpu); |
92 |
void (*mmu_raw_dump)(cpu_gen_t *cpu); |
93 |
void (*add_breakpoint)(cpu_gen_t *cpu,m_uint64_t addr); |
94 |
void (*remove_breakpoint)(cpu_gen_t *cpu,m_uint64_t addr); |
95 |
void (*set_idle_pc)(cpu_gen_t *cpu,m_uint64_t addr); |
96 |
void (*get_idling_pc)(cpu_gen_t *cpu); |
97 |
void (*mts_rebuild)(cpu_gen_t *cpu); |
98 |
void (*mts_show_stats)(cpu_gen_t *cpu); |
99 |
|
100 |
/* Memory access log for fault debugging */ |
101 |
u_int memlog_pos; |
102 |
memlog_access_t memlog_array[MEMLOG_COUNT]; |
103 |
}; |
104 |
|
105 |
/* CPU group definition */ |
106 |
typedef struct cpu_group cpu_group_t; |
107 |
struct cpu_group { |
108 |
char *name; |
109 |
cpu_gen_t *cpu_list; |
110 |
void *priv_data; |
111 |
}; |
112 |
|
113 |
#define CPU_MIPS64(cpu) (&(cpu)->sp.mips64_cpu) |
114 |
#define CPU_PPC32(cpu) (&(cpu)->sp.ppc32_cpu) |
115 |
|
116 |
/* Get CPU instruction pointer */ |
117 |
static forced_inline m_uint64_t cpu_get_pc(cpu_gen_t *cpu) |
118 |
{ |
119 |
switch(cpu->type) { |
120 |
case CPU_TYPE_MIPS64: |
121 |
return(CPU_MIPS64(cpu)->pc); |
122 |
case CPU_TYPE_PPC32: |
123 |
return((m_uint64_t)CPU_PPC32(cpu)->ia); |
124 |
default: |
125 |
return(0); |
126 |
} |
127 |
} |
128 |
|
129 |
/* Get CPU performance counter */ |
130 |
static forced_inline m_uint64_t cpu_get_perf_counter(cpu_gen_t *cpu) |
131 |
{ |
132 |
switch(cpu->type) { |
133 |
case CPU_TYPE_MIPS64: |
134 |
return(CPU_MIPS64(cpu)->perf_counter); |
135 |
case CPU_TYPE_PPC32: |
136 |
return(CPU_PPC32(cpu)->perf_counter); |
137 |
default: |
138 |
return(0); |
139 |
} |
140 |
} |
141 |
|
142 |
/* Find a CPU in a group given its ID */ |
143 |
cpu_gen_t *cpu_group_find_id(cpu_group_t *group,u_int id); |
144 |
|
145 |
/* Find the highest CPU ID in a CPU group */ |
146 |
int cpu_group_find_highest_id(cpu_group_t *group,u_int *highest_id); |
147 |
|
148 |
/* Add a CPU in a CPU group */ |
149 |
int cpu_group_add(cpu_group_t *group,cpu_gen_t *cpu); |
150 |
|
151 |
/* Create a new CPU group */ |
152 |
cpu_group_t *cpu_group_create(char *name); |
153 |
|
154 |
/* Delete a CPU group */ |
155 |
void cpu_group_delete(cpu_group_t *group); |
156 |
|
157 |
/* Rebuild the MTS subsystem for a CPU group */ |
158 |
int cpu_group_rebuild_mts(cpu_group_t *group); |
159 |
|
160 |
/* Log a message for a CPU */ |
161 |
void cpu_log(cpu_gen_t *cpu,char *module,char *format,...); |
162 |
|
163 |
/* Create a new CPU */ |
164 |
cpu_gen_t *cpu_create(vm_instance_t *vm,u_int type,u_int id); |
165 |
|
166 |
/* Delete a CPU */ |
167 |
void cpu_delete(cpu_gen_t *cpu); |
168 |
|
169 |
/* Start a CPU */ |
170 |
void cpu_start(cpu_gen_t *cpu); |
171 |
|
172 |
/* Stop a CPU */ |
173 |
void cpu_stop(cpu_gen_t *cpu); |
174 |
|
175 |
/* Start all CPUs of a CPU group */ |
176 |
void cpu_group_start_all_cpu(cpu_group_t *group); |
177 |
|
178 |
/* Stop all CPUs of a CPU group */ |
179 |
void cpu_group_stop_all_cpu(cpu_group_t *group); |
180 |
|
181 |
/* Set a state of all CPUs of a CPU group */ |
182 |
void cpu_group_set_state(cpu_group_t *group,u_int state); |
183 |
|
184 |
/* Synchronize on CPUs (all CPUs must be inactive) */ |
185 |
int cpu_group_sync_state(cpu_group_t *group); |
186 |
|
187 |
/* Save state of all CPUs */ |
188 |
int cpu_group_save_state(cpu_group_t *group); |
189 |
|
190 |
/* Restore state of all CPUs */ |
191 |
int cpu_group_restore_state(cpu_group_t *group); |
192 |
|
193 |
/* Virtual idle loop */ |
194 |
void cpu_idle_loop(cpu_gen_t *cpu); |
195 |
|
196 |
/* Break idle wait state */ |
197 |
void cpu_idle_break_wait(cpu_gen_t *cpu); |
198 |
|
199 |
#endif |