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b34f6357 | 1 | /* FRV simulator memory option handling. |
9b254dd1 | 2 | Copyright (C) 1999, 2000, 2007, 2008 Free Software Foundation, Inc. |
b34f6357 DB |
3 | Contributed by Red Hat. |
4 | ||
5 | This file is part of GDB, the GNU debugger. | |
6 | ||
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 | |
4744ac1b JB |
9 | the Free Software Foundation; either version 3 of the License, or |
10 | (at your option) any later version. | |
b34f6357 DB |
11 | |
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. | |
16 | ||
4744ac1b JB |
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/>. */ | |
b34f6357 DB |
19 | |
20 | #define WANT_CPU frvbf | |
21 | #define WANT_CPU_FRVBF | |
22 | ||
23 | #include "sim-main.h" | |
24 | #include "sim-assert.h" | |
25 | #include "sim-options.h" | |
26 | ||
27 | #ifdef HAVE_STRING_H | |
28 | #include <string.h> | |
29 | #else | |
30 | #ifdef HAVE_STRINGS_H | |
31 | #include <strings.h> | |
32 | #endif | |
33 | #endif | |
34 | #ifdef HAVE_STDLIB_H | |
35 | #include <stdlib.h> | |
36 | #endif | |
37 | ||
38 | /* FRV specific command line options. */ | |
39 | ||
40 | enum { | |
41 | OPTION_FRV_DATA_CACHE = OPTION_START, | |
42 | OPTION_FRV_INSN_CACHE, | |
43 | OPTION_FRV_PROFILE_CACHE, | |
44 | OPTION_FRV_PROFILE_PARALLEL, | |
45 | OPTION_FRV_TIMER, | |
46 | OPTION_FRV_MEMORY_LATENCY | |
47 | }; | |
48 | ||
49 | static DECLARE_OPTION_HANDLER (frv_option_handler); | |
50 | ||
51 | const OPTION frv_options[] = | |
52 | { | |
53 | { {"profile", optional_argument, NULL, 'p'}, | |
54 | 'p', "on|off", "Perform profiling", | |
55 | frv_option_handler }, | |
56 | { {"data-cache", optional_argument, NULL, OPTION_FRV_DATA_CACHE }, | |
57 | '\0', "WAYS[,SETS[,LINESIZE]]", "Enable data cache", | |
58 | frv_option_handler }, | |
59 | { {"insn-cache", optional_argument, NULL, OPTION_FRV_INSN_CACHE }, | |
60 | '\0', "WAYS[,SETS[,LINESIZE]]", "Enable instruction cache", | |
61 | frv_option_handler }, | |
62 | { {"profile-cache", optional_argument, NULL, OPTION_FRV_PROFILE_CACHE }, | |
63 | '\0', "on|off", "Profile caches", | |
64 | frv_option_handler }, | |
65 | { {"profile-parallel", optional_argument, NULL, OPTION_FRV_PROFILE_PARALLEL }, | |
66 | '\0', "on|off", "Profile parallelism", | |
67 | frv_option_handler }, | |
68 | { {"timer", required_argument, NULL, OPTION_FRV_TIMER }, | |
69 | '\0', "CYCLES,INTERRUPT", "Set Interrupt Timer", | |
70 | frv_option_handler }, | |
71 | { {"memory-latency", required_argument, NULL, OPTION_FRV_MEMORY_LATENCY }, | |
72 | '\0', "CYCLES", "Set Latency of memory", | |
73 | frv_option_handler }, | |
74 | { {NULL, no_argument, NULL, 0}, '\0', NULL, NULL, NULL } | |
75 | }; | |
76 | ||
77 | static char * | |
78 | parse_size (char *chp, address_word *nr_bytes) | |
79 | { | |
80 | /* <nr_bytes> */ | |
81 | *nr_bytes = strtoul (chp, &chp, 0); | |
82 | return chp; | |
83 | } | |
84 | ||
85 | static address_word | |
86 | check_pow2 (address_word value, char *argname, char *optname, SIM_DESC sd) | |
87 | { | |
88 | if ((value & (value - 1)) != 0) | |
89 | { | |
90 | sim_io_eprintf (sd, "%s argument to %s must be a power of 2\n", | |
91 | argname, optname); | |
92 | return 0; /* will enable default value. */ | |
93 | } | |
94 | ||
95 | return value; | |
96 | } | |
97 | ||
98 | static void | |
99 | parse_cache_option (SIM_DESC sd, char *arg, char *cache_name, int is_data_cache) | |
100 | { | |
101 | int i; | |
102 | address_word ways = 0, sets = 0, linesize = 0; | |
103 | if (arg != NULL) | |
104 | { | |
105 | char *chp = arg; | |
106 | /* parse the arguments */ | |
107 | chp = parse_size (chp, &ways); | |
108 | ways = check_pow2 (ways, "WAYS", cache_name, sd); | |
109 | if (*chp == ',') | |
110 | { | |
111 | chp = parse_size (chp + 1, &sets); | |
112 | sets = check_pow2 (sets, "SETS", cache_name, sd); | |
113 | if (*chp == ',') | |
114 | { | |
115 | chp = parse_size (chp + 1, &linesize); | |
116 | linesize = check_pow2 (linesize, "LINESIZE", cache_name, sd); | |
117 | } | |
118 | } | |
119 | } | |
120 | for (i = 0; i < MAX_NR_PROCESSORS; ++i) | |
121 | { | |
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); | |
125 | cache->ways = ways; | |
126 | cache->sets = sets; | |
127 | cache->line_size = linesize; | |
128 | frv_cache_init (current_cpu, cache); | |
129 | } | |
130 | } | |
131 | ||
132 | static SIM_RC | |
133 | frv_option_handler (SIM_DESC sd, sim_cpu *current_cpu, int opt, | |
134 | char *arg, int is_command) | |
135 | { | |
136 | switch (opt) | |
137 | { | |
138 | case 'p' : | |
139 | if (! WITH_PROFILE) | |
140 | sim_io_eprintf (sd, "Profiling not compiled in, `-p' ignored\n"); | |
141 | else | |
142 | { | |
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); | |
149 | } | |
150 | break; | |
151 | ||
152 | case OPTION_FRV_DATA_CACHE: | |
153 | parse_cache_option (sd, arg, "data_cache", 1/*is_data_cache*/); | |
154 | return SIM_RC_OK; | |
155 | ||
156 | case OPTION_FRV_INSN_CACHE: | |
157 | parse_cache_option (sd, arg, "insn_cache", 0/*is_data_cache*/); | |
158 | return SIM_RC_OK; | |
159 | ||
160 | case OPTION_FRV_PROFILE_CACHE: | |
161 | if (WITH_PROFILE_CACHE_P) | |
162 | return sim_profile_set_option (sd, "-cache", PROFILE_CACHE_IDX, arg); | |
163 | else | |
164 | sim_io_eprintf (sd, "Cache profiling not compiled in, `--profile-cache' ignored\n"); | |
165 | break; | |
166 | ||
167 | case OPTION_FRV_PROFILE_PARALLEL: | |
168 | if (WITH_PROFILE_PARALLEL_P) | |
169 | { | |
170 | unsigned mask | |
171 | = (1 << PROFILE_MODEL_IDX) | (1 << PROFILE_PARALLEL_IDX); | |
172 | return set_profile_option_mask (sd, "-parallel", mask, arg); | |
173 | } | |
174 | else | |
175 | sim_io_eprintf (sd, "Parallel profiling not compiled in, `--profile-parallel' ignored\n"); | |
176 | break; | |
177 | ||
178 | case OPTION_FRV_TIMER: | |
179 | { | |
180 | char *chp = arg; | |
181 | address_word cycles, interrupt; | |
182 | chp = parse_size (chp, &cycles); | |
183 | if (chp == arg) | |
184 | { | |
185 | sim_io_eprintf (sd, "Cycle count required for --timer\n"); | |
186 | return SIM_RC_FAIL; | |
187 | } | |
188 | if (*chp != ',') | |
189 | { | |
190 | sim_io_eprintf (sd, "Interrupt number required for --timer\n"); | |
191 | return SIM_RC_FAIL; | |
192 | } | |
193 | chp = parse_size (chp + 1, &interrupt); | |
194 | if (interrupt < 1 || interrupt > 15) | |
195 | { | |
196 | sim_io_eprintf (sd, "Interrupt number for --timer must be greater than 0 and less that 16\n"); | |
197 | return SIM_RC_FAIL; | |
198 | } | |
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; | |
204 | } | |
205 | return SIM_RC_OK; | |
206 | ||
207 | case OPTION_FRV_MEMORY_LATENCY: | |
208 | { | |
209 | int i; | |
210 | char *chp = arg; | |
211 | address_word cycles; | |
212 | chp = parse_size (chp, &cycles); | |
213 | if (chp == arg) | |
214 | { | |
215 | sim_io_eprintf (sd, "Cycle count required for --memory-latency\n"); | |
216 | return SIM_RC_FAIL; | |
217 | } | |
218 | for (i = 0; i < MAX_NR_PROCESSORS; ++i) | |
219 | { | |
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; | |
225 | } | |
226 | } | |
227 | return SIM_RC_OK; | |
228 | ||
229 | default: | |
230 | sim_io_eprintf (sd, "Unknown FRV option %d\n", opt); | |
231 | return SIM_RC_FAIL; | |
232 | ||
233 | } | |
234 | ||
235 | return SIM_RC_FAIL; | |
236 | } |