1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
|
/* FRV simulator memory option handling.
Copyright (C) 1999, 2000, 2007 Free Software Foundation, Inc.
Contributed by Red Hat.
This file is part of GDB, the GNU debugger.
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/>. */
#define WANT_CPU frvbf
#define WANT_CPU_FRVBF
#include "sim-main.h"
#include "sim-assert.h"
#include "sim-options.h"
#ifdef HAVE_STRING_H
#include <string.h>
#else
#ifdef HAVE_STRINGS_H
#include <strings.h>
#endif
#endif
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
/* FRV specific command line options. */
enum {
OPTION_FRV_DATA_CACHE = OPTION_START,
OPTION_FRV_INSN_CACHE,
OPTION_FRV_PROFILE_CACHE,
OPTION_FRV_PROFILE_PARALLEL,
OPTION_FRV_TIMER,
OPTION_FRV_MEMORY_LATENCY
};
static DECLARE_OPTION_HANDLER (frv_option_handler);
const OPTION frv_options[] =
{
{ {"profile", optional_argument, NULL, 'p'},
'p', "on|off", "Perform profiling",
frv_option_handler },
{ {"data-cache", optional_argument, NULL, OPTION_FRV_DATA_CACHE },
'\0', "WAYS[,SETS[,LINESIZE]]", "Enable data cache",
frv_option_handler },
{ {"insn-cache", optional_argument, NULL, OPTION_FRV_INSN_CACHE },
'\0', "WAYS[,SETS[,LINESIZE]]", "Enable instruction cache",
frv_option_handler },
{ {"profile-cache", optional_argument, NULL, OPTION_FRV_PROFILE_CACHE },
'\0', "on|off", "Profile caches",
frv_option_handler },
{ {"profile-parallel", optional_argument, NULL, OPTION_FRV_PROFILE_PARALLEL },
'\0', "on|off", "Profile parallelism",
frv_option_handler },
{ {"timer", required_argument, NULL, OPTION_FRV_TIMER },
'\0', "CYCLES,INTERRUPT", "Set Interrupt Timer",
frv_option_handler },
{ {"memory-latency", required_argument, NULL, OPTION_FRV_MEMORY_LATENCY },
'\0', "CYCLES", "Set Latency of memory",
frv_option_handler },
{ {NULL, no_argument, NULL, 0}, '\0', NULL, NULL, NULL }
};
static char *
parse_size (char *chp, address_word *nr_bytes)
{
/* <nr_bytes> */
*nr_bytes = strtoul (chp, &chp, 0);
return chp;
}
static address_word
check_pow2 (address_word value, char *argname, char *optname, SIM_DESC sd)
{
if ((value & (value - 1)) != 0)
{
sim_io_eprintf (sd, "%s argument to %s must be a power of 2\n",
argname, optname);
return 0; /* will enable default value. */
}
return value;
}
static void
parse_cache_option (SIM_DESC sd, char *arg, char *cache_name, int is_data_cache)
{
int i;
address_word ways = 0, sets = 0, linesize = 0;
if (arg != NULL)
{
char *chp = arg;
/* parse the arguments */
chp = parse_size (chp, &ways);
ways = check_pow2 (ways, "WAYS", cache_name, sd);
if (*chp == ',')
{
chp = parse_size (chp + 1, &sets);
sets = check_pow2 (sets, "SETS", cache_name, sd);
if (*chp == ',')
{
chp = parse_size (chp + 1, &linesize);
linesize = check_pow2 (linesize, "LINESIZE", cache_name, sd);
}
}
}
for (i = 0; i < MAX_NR_PROCESSORS; ++i)
{
SIM_CPU *current_cpu = STATE_CPU (sd, i);
FRV_CACHE *cache = is_data_cache ? CPU_DATA_CACHE (current_cpu)
: CPU_INSN_CACHE (current_cpu);
cache->ways = ways;
cache->sets = sets;
cache->line_size = linesize;
frv_cache_init (current_cpu, cache);
}
}
static SIM_RC
frv_option_handler (SIM_DESC sd, sim_cpu *current_cpu, int opt,
char *arg, int is_command)
{
switch (opt)
{
case 'p' :
if (! WITH_PROFILE)
sim_io_eprintf (sd, "Profiling not compiled in, `-p' ignored\n");
else
{
unsigned mask = PROFILE_USEFUL_MASK;
if (WITH_PROFILE_CACHE_P)
mask |= (1 << PROFILE_CACHE_IDX);
if (WITH_PROFILE_PARALLEL_P)
mask |= (1 << PROFILE_PARALLEL_IDX);
return set_profile_option_mask (sd, "profile", mask, arg);
}
break;
case OPTION_FRV_DATA_CACHE:
parse_cache_option (sd, arg, "data_cache", 1/*is_data_cache*/);
return SIM_RC_OK;
case OPTION_FRV_INSN_CACHE:
parse_cache_option (sd, arg, "insn_cache", 0/*is_data_cache*/);
return SIM_RC_OK;
case OPTION_FRV_PROFILE_CACHE:
if (WITH_PROFILE_CACHE_P)
return sim_profile_set_option (sd, "-cache", PROFILE_CACHE_IDX, arg);
else
sim_io_eprintf (sd, "Cache profiling not compiled in, `--profile-cache' ignored\n");
break;
case OPTION_FRV_PROFILE_PARALLEL:
if (WITH_PROFILE_PARALLEL_P)
{
unsigned mask
= (1 << PROFILE_MODEL_IDX) | (1 << PROFILE_PARALLEL_IDX);
return set_profile_option_mask (sd, "-parallel", mask, arg);
}
else
sim_io_eprintf (sd, "Parallel profiling not compiled in, `--profile-parallel' ignored\n");
break;
case OPTION_FRV_TIMER:
{
char *chp = arg;
address_word cycles, interrupt;
chp = parse_size (chp, &cycles);
if (chp == arg)
{
sim_io_eprintf (sd, "Cycle count required for --timer\n");
return SIM_RC_FAIL;
}
if (*chp != ',')
{
sim_io_eprintf (sd, "Interrupt number required for --timer\n");
return SIM_RC_FAIL;
}
chp = parse_size (chp + 1, &interrupt);
if (interrupt < 1 || interrupt > 15)
{
sim_io_eprintf (sd, "Interrupt number for --timer must be greater than 0 and less that 16\n");
return SIM_RC_FAIL;
}
frv_interrupt_state.timer.enabled = 1;
frv_interrupt_state.timer.value = cycles;
frv_interrupt_state.timer.current = 0;
frv_interrupt_state.timer.interrupt =
FRV_INTERRUPT_LEVEL_1 + interrupt - 1;
}
return SIM_RC_OK;
case OPTION_FRV_MEMORY_LATENCY:
{
int i;
char *chp = arg;
address_word cycles;
chp = parse_size (chp, &cycles);
if (chp == arg)
{
sim_io_eprintf (sd, "Cycle count required for --memory-latency\n");
return SIM_RC_FAIL;
}
for (i = 0; i < MAX_NR_PROCESSORS; ++i)
{
SIM_CPU *current_cpu = STATE_CPU (sd, i);
FRV_CACHE *insn_cache = CPU_INSN_CACHE (current_cpu);
FRV_CACHE *data_cache = CPU_DATA_CACHE (current_cpu);
insn_cache->memory_latency = cycles;
data_cache->memory_latency = cycles;
}
}
return SIM_RC_OK;
default:
sim_io_eprintf (sd, "Unknown FRV option %d\n", opt);
return SIM_RC_FAIL;
}
return SIM_RC_FAIL;
}
|
