1 /* FRV simulator memory option handling.
2 Copyright (C) 1999, 2000 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 2, or (at your option)
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 along
18 with this program; if not, write to the Free Software Foundation, Inc.,
19 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
21 #define WANT_CPU frvbf
22 #define WANT_CPU_FRVBF
25 #include "sim-assert.h"
26 #include "sim-options.h"
39 /* FRV specific command line options. */
42 OPTION_FRV_DATA_CACHE = OPTION_START,
43 OPTION_FRV_INSN_CACHE,
44 OPTION_FRV_PROFILE_CACHE,
45 OPTION_FRV_PROFILE_PARALLEL,
47 OPTION_FRV_MEMORY_LATENCY
50 static DECLARE_OPTION_HANDLER (frv_option_handler);
52 const OPTION frv_options[] =
54 { {"profile", optional_argument, NULL, 'p'},
55 'p', "on|off", "Perform profiling",
57 { {"data-cache", optional_argument, NULL, OPTION_FRV_DATA_CACHE },
58 '\0', "WAYS[,SETS[,LINESIZE]]", "Enable data cache",
60 { {"insn-cache", optional_argument, NULL, OPTION_FRV_INSN_CACHE },
61 '\0', "WAYS[,SETS[,LINESIZE]]", "Enable instruction cache",
63 { {"profile-cache", optional_argument, NULL, OPTION_FRV_PROFILE_CACHE },
64 '\0', "on|off", "Profile caches",
66 { {"profile-parallel", optional_argument, NULL, OPTION_FRV_PROFILE_PARALLEL },
67 '\0', "on|off", "Profile parallelism",
69 { {"timer", required_argument, NULL, OPTION_FRV_TIMER },
70 '\0', "CYCLES,INTERRUPT", "Set Interrupt Timer",
72 { {"memory-latency", required_argument, NULL, OPTION_FRV_MEMORY_LATENCY },
73 '\0', "CYCLES", "Set Latency of memory",
75 { {NULL, no_argument, NULL, 0}, '\0', NULL, NULL, NULL }
79 parse_size (char *chp, address_word *nr_bytes)
82 *nr_bytes = strtoul (chp, &chp, 0);
87 check_pow2 (address_word value, char *argname, char *optname, SIM_DESC sd)
89 if ((value & (value - 1)) != 0)
91 sim_io_eprintf (sd, "%s argument to %s must be a power of 2\n",
93 return 0; /* will enable default value. */
100 parse_cache_option (SIM_DESC sd, char *arg, char *cache_name, int is_data_cache)
103 address_word ways = 0, sets = 0, linesize = 0;
107 /* parse the arguments */
108 chp = parse_size (chp, &ways);
109 ways = check_pow2 (ways, "WAYS", cache_name, sd);
112 chp = parse_size (chp + 1, &sets);
113 sets = check_pow2 (sets, "SETS", cache_name, sd);
116 chp = parse_size (chp + 1, &linesize);
117 linesize = check_pow2 (linesize, "LINESIZE", cache_name, sd);
121 for (i = 0; i < MAX_NR_PROCESSORS; ++i)
123 SIM_CPU *current_cpu = STATE_CPU (sd, i);
124 FRV_CACHE *cache = is_data_cache ? CPU_DATA_CACHE (current_cpu)
125 : CPU_INSN_CACHE (current_cpu);
128 cache->line_size = linesize;
129 frv_cache_init (current_cpu, cache);
134 frv_option_handler (SIM_DESC sd, sim_cpu *current_cpu, int opt,
135 char *arg, int is_command)
141 sim_io_eprintf (sd, "Profiling not compiled in, `-p' ignored\n");
144 unsigned mask = PROFILE_USEFUL_MASK;
145 if (WITH_PROFILE_CACHE_P)
146 mask |= (1 << PROFILE_CACHE_IDX);
147 if (WITH_PROFILE_PARALLEL_P)
148 mask |= (1 << PROFILE_PARALLEL_IDX);
149 return set_profile_option_mask (sd, "profile", mask, arg);
153 case OPTION_FRV_DATA_CACHE:
154 parse_cache_option (sd, arg, "data_cache", 1/*is_data_cache*/);
157 case OPTION_FRV_INSN_CACHE:
158 parse_cache_option (sd, arg, "insn_cache", 0/*is_data_cache*/);
161 case OPTION_FRV_PROFILE_CACHE:
162 if (WITH_PROFILE_CACHE_P)
163 return sim_profile_set_option (sd, "-cache", PROFILE_CACHE_IDX, arg);
165 sim_io_eprintf (sd, "Cache profiling not compiled in, `--profile-cache' ignored\n");
168 case OPTION_FRV_PROFILE_PARALLEL:
169 if (WITH_PROFILE_PARALLEL_P)
172 = (1 << PROFILE_MODEL_IDX) | (1 << PROFILE_PARALLEL_IDX);
173 return set_profile_option_mask (sd, "-parallel", mask, arg);
176 sim_io_eprintf (sd, "Parallel profiling not compiled in, `--profile-parallel' ignored\n");
179 case OPTION_FRV_TIMER:
182 address_word cycles, interrupt;
183 chp = parse_size (chp, &cycles);
186 sim_io_eprintf (sd, "Cycle count required for --timer\n");
191 sim_io_eprintf (sd, "Interrupt number required for --timer\n");
194 chp = parse_size (chp + 1, &interrupt);
195 if (interrupt < 1 || interrupt > 15)
197 sim_io_eprintf (sd, "Interrupt number for --timer must be greater than 0 and less that 16\n");
200 frv_interrupt_state.timer.enabled = 1;
201 frv_interrupt_state.timer.value = cycles;
202 frv_interrupt_state.timer.current = 0;
203 frv_interrupt_state.timer.interrupt =
204 FRV_INTERRUPT_LEVEL_1 + interrupt - 1;
208 case OPTION_FRV_MEMORY_LATENCY:
213 chp = parse_size (chp, &cycles);
216 sim_io_eprintf (sd, "Cycle count required for --memory-latency\n");
219 for (i = 0; i < MAX_NR_PROCESSORS; ++i)
221 SIM_CPU *current_cpu = STATE_CPU (sd, i);
222 FRV_CACHE *insn_cache = CPU_INSN_CACHE (current_cpu);
223 FRV_CACHE *data_cache = CPU_DATA_CACHE (current_cpu);
224 insn_cache->memory_latency = cycles;
225 data_cache->memory_latency = cycles;
231 sim_io_eprintf (sd, "Unknown FRV option %d\n", opt);