1 /* FRV simulator memory option handling.
2 Copyright (C) 1999-2022 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 /* This must come before any other includes. */
23 #define WANT_CPU frvbf
24 #define WANT_CPU_FRVBF
27 #include "sim-assert.h"
28 #include "sim-options.h"
33 /* FRV specific command line options. */
36 OPTION_FRV_DATA_CACHE = OPTION_START,
37 OPTION_FRV_INSN_CACHE,
38 OPTION_FRV_PROFILE_CACHE,
39 OPTION_FRV_PROFILE_PARALLEL,
41 OPTION_FRV_MEMORY_LATENCY
44 static DECLARE_OPTION_HANDLER (frv_option_handler);
46 const OPTION frv_options[] =
48 { {"profile", optional_argument, NULL, 'p'},
49 'p', "on|off", "Perform profiling",
51 { {"data-cache", optional_argument, NULL, OPTION_FRV_DATA_CACHE },
52 '\0', "WAYS[,SETS[,LINESIZE]]", "Enable data cache",
54 { {"insn-cache", optional_argument, NULL, OPTION_FRV_INSN_CACHE },
55 '\0', "WAYS[,SETS[,LINESIZE]]", "Enable instruction cache",
57 { {"profile-cache", optional_argument, NULL, OPTION_FRV_PROFILE_CACHE },
58 '\0', "on|off", "Profile caches",
60 { {"profile-parallel", optional_argument, NULL, OPTION_FRV_PROFILE_PARALLEL },
61 '\0', "on|off", "Profile parallelism",
63 { {"timer", required_argument, NULL, OPTION_FRV_TIMER },
64 '\0', "CYCLES,INTERRUPT", "Set Interrupt Timer",
66 { {"memory-latency", required_argument, NULL, OPTION_FRV_MEMORY_LATENCY },
67 '\0', "CYCLES", "Set Latency of memory",
69 { {NULL, no_argument, NULL, 0}, '\0', NULL, NULL, NULL }
73 parse_size (char *chp, address_word *nr_bytes)
76 *nr_bytes = strtoul (chp, &chp, 0);
81 check_pow2 (address_word value, char *argname, char *optname, SIM_DESC sd)
83 if ((value & (value - 1)) != 0)
85 sim_io_eprintf (sd, "%s argument to %s must be a power of 2\n",
87 return 0; /* will enable default value. */
94 parse_cache_option (SIM_DESC sd, char *arg, char *cache_name, int is_data_cache)
97 address_word ways = 0, sets = 0, linesize = 0;
101 /* parse the arguments */
102 chp = parse_size (chp, &ways);
103 ways = check_pow2 (ways, "WAYS", cache_name, sd);
106 chp = parse_size (chp + 1, &sets);
107 sets = check_pow2 (sets, "SETS", cache_name, sd);
110 chp = parse_size (chp + 1, &linesize);
111 linesize = check_pow2 (linesize, "LINESIZE", cache_name, sd);
115 for (i = 0; i < MAX_NR_PROCESSORS; ++i)
117 SIM_CPU *current_cpu = STATE_CPU (sd, i);
118 FRV_CACHE *cache = is_data_cache ? CPU_DATA_CACHE (current_cpu)
119 : CPU_INSN_CACHE (current_cpu);
122 cache->line_size = linesize;
123 frv_cache_init (current_cpu, cache);
128 frv_option_handler (SIM_DESC sd, sim_cpu *current_cpu, int opt,
129 char *arg, int is_command)
135 sim_io_eprintf (sd, "Profiling not compiled in, `-p' ignored\n");
138 unsigned mask = PROFILE_USEFUL_MASK;
139 if (WITH_PROFILE_CACHE_P)
140 mask |= (1 << PROFILE_CACHE_IDX);
141 if (WITH_PROFILE_PARALLEL_P)
142 mask |= (1 << PROFILE_PARALLEL_IDX);
143 return set_profile_option_mask (sd, "profile", mask, arg);
147 case OPTION_FRV_DATA_CACHE:
148 parse_cache_option (sd, arg, "data_cache", 1/*is_data_cache*/);
151 case OPTION_FRV_INSN_CACHE:
152 parse_cache_option (sd, arg, "insn_cache", 0/*is_data_cache*/);
155 case OPTION_FRV_PROFILE_CACHE:
156 if (WITH_PROFILE_CACHE_P)
157 return sim_profile_set_option (sd, "-cache", PROFILE_CACHE_IDX, arg);
159 sim_io_eprintf (sd, "Cache profiling not compiled in, `--profile-cache' ignored\n");
162 case OPTION_FRV_PROFILE_PARALLEL:
163 if (WITH_PROFILE_PARALLEL_P)
166 = (1 << PROFILE_MODEL_IDX) | (1 << PROFILE_PARALLEL_IDX);
167 return set_profile_option_mask (sd, "-parallel", mask, arg);
170 sim_io_eprintf (sd, "Parallel profiling not compiled in, `--profile-parallel' ignored\n");
173 case OPTION_FRV_TIMER:
176 address_word cycles, interrupt;
177 chp = parse_size (chp, &cycles);
180 sim_io_eprintf (sd, "Cycle count required for --timer\n");
185 sim_io_eprintf (sd, "Interrupt number required for --timer\n");
188 chp = parse_size (chp + 1, &interrupt);
189 if (interrupt < 1 || interrupt > 15)
191 sim_io_eprintf (sd, "Interrupt number for --timer must be greater than 0 and less that 16\n");
194 frv_interrupt_state.timer.enabled = 1;
195 frv_interrupt_state.timer.value = cycles;
196 frv_interrupt_state.timer.current = 0;
197 frv_interrupt_state.timer.interrupt =
198 FRV_INTERRUPT_LEVEL_1 + interrupt - 1;
202 case OPTION_FRV_MEMORY_LATENCY:
207 chp = parse_size (chp, &cycles);
210 sim_io_eprintf (sd, "Cycle count required for --memory-latency\n");
213 for (i = 0; i < MAX_NR_PROCESSORS; ++i)
215 SIM_CPU *current_cpu = STATE_CPU (sd, i);
216 FRV_CACHE *insn_cache = CPU_INSN_CACHE (current_cpu);
217 FRV_CACHE *data_cache = CPU_DATA_CACHE (current_cpu);
218 insn_cache->memory_latency = cycles;
219 data_cache->memory_latency = cycles;
225 sim_io_eprintf (sd, "Unknown FRV option %d\n", opt);