1 /* FRV simulator memory option handling.
2 Copyright (C) 1999, 2000, 2007, 2008 Free Software Foundation, Inc.
3 Contributed by Red Hat.
5 This file is part of GDB, the GNU debugger.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
20 #define WANT_CPU frvbf
21 #define WANT_CPU_FRVBF
24 #include "sim-assert.h"
25 #include "sim-options.h"
38 /* FRV specific command line options. */
41 OPTION_FRV_DATA_CACHE
= OPTION_START
,
42 OPTION_FRV_INSN_CACHE
,
43 OPTION_FRV_PROFILE_CACHE
,
44 OPTION_FRV_PROFILE_PARALLEL
,
46 OPTION_FRV_MEMORY_LATENCY
49 static DECLARE_OPTION_HANDLER (frv_option_handler
);
51 const OPTION frv_options
[] =
53 { {"profile", optional_argument
, NULL
, 'p'},
54 'p', "on|off", "Perform profiling",
56 { {"data-cache", optional_argument
, NULL
, OPTION_FRV_DATA_CACHE
},
57 '\0', "WAYS[,SETS[,LINESIZE]]", "Enable data cache",
59 { {"insn-cache", optional_argument
, NULL
, OPTION_FRV_INSN_CACHE
},
60 '\0', "WAYS[,SETS[,LINESIZE]]", "Enable instruction cache",
62 { {"profile-cache", optional_argument
, NULL
, OPTION_FRV_PROFILE_CACHE
},
63 '\0', "on|off", "Profile caches",
65 { {"profile-parallel", optional_argument
, NULL
, OPTION_FRV_PROFILE_PARALLEL
},
66 '\0', "on|off", "Profile parallelism",
68 { {"timer", required_argument
, NULL
, OPTION_FRV_TIMER
},
69 '\0', "CYCLES,INTERRUPT", "Set Interrupt Timer",
71 { {"memory-latency", required_argument
, NULL
, OPTION_FRV_MEMORY_LATENCY
},
72 '\0', "CYCLES", "Set Latency of memory",
74 { {NULL
, no_argument
, NULL
, 0}, '\0', NULL
, NULL
, NULL
}
78 parse_size (char *chp
, address_word
*nr_bytes
)
81 *nr_bytes
= strtoul (chp
, &chp
, 0);
86 check_pow2 (address_word value
, char *argname
, char *optname
, SIM_DESC sd
)
88 if ((value
& (value
- 1)) != 0)
90 sim_io_eprintf (sd
, "%s argument to %s must be a power of 2\n",
92 return 0; /* will enable default value. */
99 parse_cache_option (SIM_DESC sd
, char *arg
, char *cache_name
, int is_data_cache
)
102 address_word ways
= 0, sets
= 0, linesize
= 0;
106 /* parse the arguments */
107 chp
= parse_size (chp
, &ways
);
108 ways
= check_pow2 (ways
, "WAYS", cache_name
, sd
);
111 chp
= parse_size (chp
+ 1, &sets
);
112 sets
= check_pow2 (sets
, "SETS", cache_name
, sd
);
115 chp
= parse_size (chp
+ 1, &linesize
);
116 linesize
= check_pow2 (linesize
, "LINESIZE", cache_name
, sd
);
120 for (i
= 0; i
< MAX_NR_PROCESSORS
; ++i
)
122 SIM_CPU
*current_cpu
= STATE_CPU (sd
, i
);
123 FRV_CACHE
*cache
= is_data_cache
? CPU_DATA_CACHE (current_cpu
)
124 : CPU_INSN_CACHE (current_cpu
);
127 cache
->line_size
= linesize
;
128 frv_cache_init (current_cpu
, cache
);
133 frv_option_handler (SIM_DESC sd
, sim_cpu
*current_cpu
, int opt
,
134 char *arg
, int is_command
)
140 sim_io_eprintf (sd
, "Profiling not compiled in, `-p' ignored\n");
143 unsigned mask
= PROFILE_USEFUL_MASK
;
144 if (WITH_PROFILE_CACHE_P
)
145 mask
|= (1 << PROFILE_CACHE_IDX
);
146 if (WITH_PROFILE_PARALLEL_P
)
147 mask
|= (1 << PROFILE_PARALLEL_IDX
);
148 return set_profile_option_mask (sd
, "profile", mask
, arg
);
152 case OPTION_FRV_DATA_CACHE
:
153 parse_cache_option (sd
, arg
, "data_cache", 1/*is_data_cache*/);
156 case OPTION_FRV_INSN_CACHE
:
157 parse_cache_option (sd
, arg
, "insn_cache", 0/*is_data_cache*/);
160 case OPTION_FRV_PROFILE_CACHE
:
161 if (WITH_PROFILE_CACHE_P
)
162 return sim_profile_set_option (sd
, "-cache", PROFILE_CACHE_IDX
, arg
);
164 sim_io_eprintf (sd
, "Cache profiling not compiled in, `--profile-cache' ignored\n");
167 case OPTION_FRV_PROFILE_PARALLEL
:
168 if (WITH_PROFILE_PARALLEL_P
)
171 = (1 << PROFILE_MODEL_IDX
) | (1 << PROFILE_PARALLEL_IDX
);
172 return set_profile_option_mask (sd
, "-parallel", mask
, arg
);
175 sim_io_eprintf (sd
, "Parallel profiling not compiled in, `--profile-parallel' ignored\n");
178 case OPTION_FRV_TIMER
:
181 address_word cycles
, interrupt
;
182 chp
= parse_size (chp
, &cycles
);
185 sim_io_eprintf (sd
, "Cycle count required for --timer\n");
190 sim_io_eprintf (sd
, "Interrupt number required for --timer\n");
193 chp
= parse_size (chp
+ 1, &interrupt
);
194 if (interrupt
< 1 || interrupt
> 15)
196 sim_io_eprintf (sd
, "Interrupt number for --timer must be greater than 0 and less that 16\n");
199 frv_interrupt_state
.timer
.enabled
= 1;
200 frv_interrupt_state
.timer
.value
= cycles
;
201 frv_interrupt_state
.timer
.current
= 0;
202 frv_interrupt_state
.timer
.interrupt
=
203 FRV_INTERRUPT_LEVEL_1
+ interrupt
- 1;
207 case OPTION_FRV_MEMORY_LATENCY
:
212 chp
= parse_size (chp
, &cycles
);
215 sim_io_eprintf (sd
, "Cycle count required for --memory-latency\n");
218 for (i
= 0; i
< MAX_NR_PROCESSORS
; ++i
)
220 SIM_CPU
*current_cpu
= STATE_CPU (sd
, i
);
221 FRV_CACHE
*insn_cache
= CPU_INSN_CACHE (current_cpu
);
222 FRV_CACHE
*data_cache
= CPU_DATA_CACHE (current_cpu
);
223 insn_cache
->memory_latency
= cycles
;
224 data_cache
->memory_latency
= cycles
;
230 sim_io_eprintf (sd
, "Unknown FRV option %d\n", opt
);