diff options
Diffstat (limited to 'arch/mips/math-emu/me-debugfs.c')
-rw-r--r-- | arch/mips/math-emu/me-debugfs.c | 353 |
1 files changed, 353 insertions, 0 deletions
diff --git a/arch/mips/math-emu/me-debugfs.c b/arch/mips/math-emu/me-debugfs.c new file mode 100644 index 000000000..d5ad76b2b --- /dev/null +++ b/arch/mips/math-emu/me-debugfs.c | |||
@@ -0,0 +1,353 @@ | |||
1 | // SPDX-License-Identifier: GPL-2.0 | ||
2 | #include <linux/cpumask.h> | ||
3 | #include <linux/debugfs.h> | ||
4 | #include <linux/fs.h> | ||
5 | #include <linux/init.h> | ||
6 | #include <linux/percpu.h> | ||
7 | #include <linux/types.h> | ||
8 | #include <asm/debug.h> | ||
9 | #include <asm/fpu_emulator.h> | ||
10 | #include <asm/local.h> | ||
11 | |||
12 | DEFINE_PER_CPU(struct mips_fpu_emulator_stats, fpuemustats); | ||
13 | |||
14 | static int fpuemu_stat_get(void *data, u64 *val) | ||
15 | { | ||
16 | int cpu; | ||
17 | unsigned long sum = 0; | ||
18 | |||
19 | for_each_online_cpu(cpu) { | ||
20 | struct mips_fpu_emulator_stats *ps; | ||
21 | local_t *pv; | ||
22 | |||
23 | ps = &per_cpu(fpuemustats, cpu); | ||
24 | pv = (void *)ps + (unsigned long)data; | ||
25 | sum += local_read(pv); | ||
26 | } | ||
27 | *val = sum; | ||
28 | return 0; | ||
29 | } | ||
30 | DEFINE_SIMPLE_ATTRIBUTE(fops_fpuemu_stat, fpuemu_stat_get, NULL, "%llu\n"); | ||
31 | |||
32 | /* | ||
33 | * Used to obtain names for a debugfs instruction counter, given field name | ||
34 | * in fpuemustats structure. For example, for input "cmp_sueq_d", the output | ||
35 | * would be "cmp.sueq.d". This is needed since dots are not allowed to be | ||
36 | * used in structure field names, and are, on the other hand, desired to be | ||
37 | * used in debugfs item names to be clearly associated to corresponding | ||
38 | * MIPS FPU instructions. | ||
39 | */ | ||
40 | static void adjust_instruction_counter_name(char *out_name, char *in_name) | ||
41 | { | ||
42 | int i = 0; | ||
43 | |||
44 | strcpy(out_name, in_name); | ||
45 | while (in_name[i] != '\0') { | ||
46 | if (out_name[i] == '_') | ||
47 | out_name[i] = '.'; | ||
48 | i++; | ||
49 | } | ||
50 | } | ||
51 | |||
52 | static int fpuemustats_clear_show(struct seq_file *s, void *unused) | ||
53 | { | ||
54 | __this_cpu_write((fpuemustats).emulated, 0); | ||
55 | __this_cpu_write((fpuemustats).loads, 0); | ||
56 | __this_cpu_write((fpuemustats).stores, 0); | ||
57 | __this_cpu_write((fpuemustats).branches, 0); | ||
58 | __this_cpu_write((fpuemustats).cp1ops, 0); | ||
59 | __this_cpu_write((fpuemustats).cp1xops, 0); | ||
60 | __this_cpu_write((fpuemustats).errors, 0); | ||
61 | __this_cpu_write((fpuemustats).ieee754_inexact, 0); | ||
62 | __this_cpu_write((fpuemustats).ieee754_underflow, 0); | ||
63 | __this_cpu_write((fpuemustats).ieee754_overflow, 0); | ||
64 | __this_cpu_write((fpuemustats).ieee754_zerodiv, 0); | ||
65 | __this_cpu_write((fpuemustats).ieee754_invalidop, 0); | ||
66 | __this_cpu_write((fpuemustats).ds_emul, 0); | ||
67 | |||
68 | __this_cpu_write((fpuemustats).abs_s, 0); | ||
69 | __this_cpu_write((fpuemustats).abs_d, 0); | ||
70 | __this_cpu_write((fpuemustats).add_s, 0); | ||
71 | __this_cpu_write((fpuemustats).add_d, 0); | ||
72 | __this_cpu_write((fpuemustats).bc1eqz, 0); | ||
73 | __this_cpu_write((fpuemustats).bc1nez, 0); | ||
74 | __this_cpu_write((fpuemustats).ceil_w_s, 0); | ||
75 | __this_cpu_write((fpuemustats).ceil_w_d, 0); | ||
76 | __this_cpu_write((fpuemustats).ceil_l_s, 0); | ||
77 | __this_cpu_write((fpuemustats).ceil_l_d, 0); | ||
78 | __this_cpu_write((fpuemustats).class_s, 0); | ||
79 | __this_cpu_write((fpuemustats).class_d, 0); | ||
80 | __this_cpu_write((fpuemustats).cmp_af_s, 0); | ||
81 | __this_cpu_write((fpuemustats).cmp_af_d, 0); | ||
82 | __this_cpu_write((fpuemustats).cmp_eq_s, 0); | ||
83 | __this_cpu_write((fpuemustats).cmp_eq_d, 0); | ||
84 | __this_cpu_write((fpuemustats).cmp_le_s, 0); | ||
85 | __this_cpu_write((fpuemustats).cmp_le_d, 0); | ||
86 | __this_cpu_write((fpuemustats).cmp_lt_s, 0); | ||
87 | __this_cpu_write((fpuemustats).cmp_lt_d, 0); | ||
88 | __this_cpu_write((fpuemustats).cmp_ne_s, 0); | ||
89 | __this_cpu_write((fpuemustats).cmp_ne_d, 0); | ||
90 | __this_cpu_write((fpuemustats).cmp_or_s, 0); | ||
91 | __this_cpu_write((fpuemustats).cmp_or_d, 0); | ||
92 | __this_cpu_write((fpuemustats).cmp_ueq_s, 0); | ||
93 | __this_cpu_write((fpuemustats).cmp_ueq_d, 0); | ||
94 | __this_cpu_write((fpuemustats).cmp_ule_s, 0); | ||
95 | __this_cpu_write((fpuemustats).cmp_ule_d, 0); | ||
96 | __this_cpu_write((fpuemustats).cmp_ult_s, 0); | ||
97 | __this_cpu_write((fpuemustats).cmp_ult_d, 0); | ||
98 | __this_cpu_write((fpuemustats).cmp_un_s, 0); | ||
99 | __this_cpu_write((fpuemustats).cmp_un_d, 0); | ||
100 | __this_cpu_write((fpuemustats).cmp_une_s, 0); | ||
101 | __this_cpu_write((fpuemustats).cmp_une_d, 0); | ||
102 | __this_cpu_write((fpuemustats).cmp_saf_s, 0); | ||
103 | __this_cpu_write((fpuemustats).cmp_saf_d, 0); | ||
104 | __this_cpu_write((fpuemustats).cmp_seq_s, 0); | ||
105 | __this_cpu_write((fpuemustats).cmp_seq_d, 0); | ||
106 | __this_cpu_write((fpuemustats).cmp_sle_s, 0); | ||
107 | __this_cpu_write((fpuemustats).cmp_sle_d, 0); | ||
108 | __this_cpu_write((fpuemustats).cmp_slt_s, 0); | ||
109 | __this_cpu_write((fpuemustats).cmp_slt_d, 0); | ||
110 | __this_cpu_write((fpuemustats).cmp_sne_s, 0); | ||
111 | __this_cpu_write((fpuemustats).cmp_sne_d, 0); | ||
112 | __this_cpu_write((fpuemustats).cmp_sor_s, 0); | ||
113 | __this_cpu_write((fpuemustats).cmp_sor_d, 0); | ||
114 | __this_cpu_write((fpuemustats).cmp_sueq_s, 0); | ||
115 | __this_cpu_write((fpuemustats).cmp_sueq_d, 0); | ||
116 | __this_cpu_write((fpuemustats).cmp_sule_s, 0); | ||
117 | __this_cpu_write((fpuemustats).cmp_sule_d, 0); | ||
118 | __this_cpu_write((fpuemustats).cmp_sult_s, 0); | ||
119 | __this_cpu_write((fpuemustats).cmp_sult_d, 0); | ||
120 | __this_cpu_write((fpuemustats).cmp_sun_s, 0); | ||
121 | __this_cpu_write((fpuemustats).cmp_sun_d, 0); | ||
122 | __this_cpu_write((fpuemustats).cmp_sune_s, 0); | ||
123 | __this_cpu_write((fpuemustats).cmp_sune_d, 0); | ||
124 | __this_cpu_write((fpuemustats).cvt_d_l, 0); | ||
125 | __this_cpu_write((fpuemustats).cvt_d_s, 0); | ||
126 | __this_cpu_write((fpuemustats).cvt_d_w, 0); | ||
127 | __this_cpu_write((fpuemustats).cvt_l_s, 0); | ||
128 | __this_cpu_write((fpuemustats).cvt_l_d, 0); | ||
129 | __this_cpu_write((fpuemustats).cvt_s_d, 0); | ||
130 | __this_cpu_write((fpuemustats).cvt_s_l, 0); | ||
131 | __this_cpu_write((fpuemustats).cvt_s_w, 0); | ||
132 | __this_cpu_write((fpuemustats).cvt_w_s, 0); | ||
133 | __this_cpu_write((fpuemustats).cvt_w_d, 0); | ||
134 | __this_cpu_write((fpuemustats).div_s, 0); | ||
135 | __this_cpu_write((fpuemustats).div_d, 0); | ||
136 | __this_cpu_write((fpuemustats).floor_w_s, 0); | ||
137 | __this_cpu_write((fpuemustats).floor_w_d, 0); | ||
138 | __this_cpu_write((fpuemustats).floor_l_s, 0); | ||
139 | __this_cpu_write((fpuemustats).floor_l_d, 0); | ||
140 | __this_cpu_write((fpuemustats).maddf_s, 0); | ||
141 | __this_cpu_write((fpuemustats).maddf_d, 0); | ||
142 | __this_cpu_write((fpuemustats).max_s, 0); | ||
143 | __this_cpu_write((fpuemustats).max_d, 0); | ||
144 | __this_cpu_write((fpuemustats).maxa_s, 0); | ||
145 | __this_cpu_write((fpuemustats).maxa_d, 0); | ||
146 | __this_cpu_write((fpuemustats).min_s, 0); | ||
147 | __this_cpu_write((fpuemustats).min_d, 0); | ||
148 | __this_cpu_write((fpuemustats).mina_s, 0); | ||
149 | __this_cpu_write((fpuemustats).mina_d, 0); | ||
150 | __this_cpu_write((fpuemustats).mov_s, 0); | ||
151 | __this_cpu_write((fpuemustats).mov_d, 0); | ||
152 | __this_cpu_write((fpuemustats).msubf_s, 0); | ||
153 | __this_cpu_write((fpuemustats).msubf_d, 0); | ||
154 | __this_cpu_write((fpuemustats).mul_s, 0); | ||
155 | __this_cpu_write((fpuemustats).mul_d, 0); | ||
156 | __this_cpu_write((fpuemustats).neg_s, 0); | ||
157 | __this_cpu_write((fpuemustats).neg_d, 0); | ||
158 | __this_cpu_write((fpuemustats).recip_s, 0); | ||
159 | __this_cpu_write((fpuemustats).recip_d, 0); | ||
160 | __this_cpu_write((fpuemustats).rint_s, 0); | ||
161 | __this_cpu_write((fpuemustats).rint_d, 0); | ||
162 | __this_cpu_write((fpuemustats).round_w_s, 0); | ||
163 | __this_cpu_write((fpuemustats).round_w_d, 0); | ||
164 | __this_cpu_write((fpuemustats).round_l_s, 0); | ||
165 | __this_cpu_write((fpuemustats).round_l_d, 0); | ||
166 | __this_cpu_write((fpuemustats).rsqrt_s, 0); | ||
167 | __this_cpu_write((fpuemustats).rsqrt_d, 0); | ||
168 | __this_cpu_write((fpuemustats).sel_s, 0); | ||
169 | __this_cpu_write((fpuemustats).sel_d, 0); | ||
170 | __this_cpu_write((fpuemustats).seleqz_s, 0); | ||
171 | __this_cpu_write((fpuemustats).seleqz_d, 0); | ||
172 | __this_cpu_write((fpuemustats).selnez_s, 0); | ||
173 | __this_cpu_write((fpuemustats).selnez_d, 0); | ||
174 | __this_cpu_write((fpuemustats).sqrt_s, 0); | ||
175 | __this_cpu_write((fpuemustats).sqrt_d, 0); | ||
176 | __this_cpu_write((fpuemustats).sub_s, 0); | ||
177 | __this_cpu_write((fpuemustats).sub_d, 0); | ||
178 | __this_cpu_write((fpuemustats).trunc_w_s, 0); | ||
179 | __this_cpu_write((fpuemustats).trunc_w_d, 0); | ||
180 | __this_cpu_write((fpuemustats).trunc_l_s, 0); | ||
181 | __this_cpu_write((fpuemustats).trunc_l_d, 0); | ||
182 | |||
183 | return 0; | ||
184 | } | ||
185 | |||
186 | DEFINE_SHOW_ATTRIBUTE(fpuemustats_clear); | ||
187 | |||
188 | static int __init debugfs_fpuemu(void) | ||
189 | { | ||
190 | struct dentry *fpuemu_debugfs_base_dir; | ||
191 | struct dentry *fpuemu_debugfs_inst_dir; | ||
192 | char name[32]; | ||
193 | |||
194 | fpuemu_debugfs_base_dir = debugfs_create_dir("fpuemustats", | ||
195 | mips_debugfs_dir); | ||
196 | |||
197 | debugfs_create_file("fpuemustats_clear", 0444, mips_debugfs_dir, NULL, | ||
198 | &fpuemustats_clear_fops); | ||
199 | |||
200 | #define FPU_EMU_STAT_OFFSET(m) \ | ||
201 | offsetof(struct mips_fpu_emulator_stats, m) | ||
202 | |||
203 | #define FPU_STAT_CREATE(m) \ | ||
204 | do { \ | ||
205 | debugfs_create_file(#m, 0444, fpuemu_debugfs_base_dir, \ | ||
206 | (void *)FPU_EMU_STAT_OFFSET(m), \ | ||
207 | &fops_fpuemu_stat); \ | ||
208 | } while (0) | ||
209 | |||
210 | FPU_STAT_CREATE(emulated); | ||
211 | FPU_STAT_CREATE(loads); | ||
212 | FPU_STAT_CREATE(stores); | ||
213 | FPU_STAT_CREATE(branches); | ||
214 | FPU_STAT_CREATE(cp1ops); | ||
215 | FPU_STAT_CREATE(cp1xops); | ||
216 | FPU_STAT_CREATE(errors); | ||
217 | FPU_STAT_CREATE(ieee754_inexact); | ||
218 | FPU_STAT_CREATE(ieee754_underflow); | ||
219 | FPU_STAT_CREATE(ieee754_overflow); | ||
220 | FPU_STAT_CREATE(ieee754_zerodiv); | ||
221 | FPU_STAT_CREATE(ieee754_invalidop); | ||
222 | FPU_STAT_CREATE(ds_emul); | ||
223 | |||
224 | fpuemu_debugfs_inst_dir = debugfs_create_dir("instructions", | ||
225 | fpuemu_debugfs_base_dir); | ||
226 | |||
227 | #define FPU_STAT_CREATE_EX(m) \ | ||
228 | do { \ | ||
229 | adjust_instruction_counter_name(name, #m); \ | ||
230 | \ | ||
231 | debugfs_create_file(name, 0444, fpuemu_debugfs_inst_dir, \ | ||
232 | (void *)FPU_EMU_STAT_OFFSET(m), \ | ||
233 | &fops_fpuemu_stat); \ | ||
234 | } while (0) | ||
235 | |||
236 | FPU_STAT_CREATE_EX(abs_s); | ||
237 | FPU_STAT_CREATE_EX(abs_d); | ||
238 | FPU_STAT_CREATE_EX(add_s); | ||
239 | FPU_STAT_CREATE_EX(add_d); | ||
240 | FPU_STAT_CREATE_EX(bc1eqz); | ||
241 | FPU_STAT_CREATE_EX(bc1nez); | ||
242 | FPU_STAT_CREATE_EX(ceil_w_s); | ||
243 | FPU_STAT_CREATE_EX(ceil_w_d); | ||
244 | FPU_STAT_CREATE_EX(ceil_l_s); | ||
245 | FPU_STAT_CREATE_EX(ceil_l_d); | ||
246 | FPU_STAT_CREATE_EX(class_s); | ||
247 | FPU_STAT_CREATE_EX(class_d); | ||
248 | FPU_STAT_CREATE_EX(cmp_af_s); | ||
249 | FPU_STAT_CREATE_EX(cmp_af_d); | ||
250 | FPU_STAT_CREATE_EX(cmp_eq_s); | ||
251 | FPU_STAT_CREATE_EX(cmp_eq_d); | ||
252 | FPU_STAT_CREATE_EX(cmp_le_s); | ||
253 | FPU_STAT_CREATE_EX(cmp_le_d); | ||
254 | FPU_STAT_CREATE_EX(cmp_lt_s); | ||
255 | FPU_STAT_CREATE_EX(cmp_lt_d); | ||
256 | FPU_STAT_CREATE_EX(cmp_ne_s); | ||
257 | FPU_STAT_CREATE_EX(cmp_ne_d); | ||
258 | FPU_STAT_CREATE_EX(cmp_or_s); | ||
259 | FPU_STAT_CREATE_EX(cmp_or_d); | ||
260 | FPU_STAT_CREATE_EX(cmp_ueq_s); | ||
261 | FPU_STAT_CREATE_EX(cmp_ueq_d); | ||
262 | FPU_STAT_CREATE_EX(cmp_ule_s); | ||
263 | FPU_STAT_CREATE_EX(cmp_ule_d); | ||
264 | FPU_STAT_CREATE_EX(cmp_ult_s); | ||
265 | FPU_STAT_CREATE_EX(cmp_ult_d); | ||
266 | FPU_STAT_CREATE_EX(cmp_un_s); | ||
267 | FPU_STAT_CREATE_EX(cmp_un_d); | ||
268 | FPU_STAT_CREATE_EX(cmp_une_s); | ||
269 | FPU_STAT_CREATE_EX(cmp_une_d); | ||
270 | FPU_STAT_CREATE_EX(cmp_saf_s); | ||
271 | FPU_STAT_CREATE_EX(cmp_saf_d); | ||
272 | FPU_STAT_CREATE_EX(cmp_seq_s); | ||
273 | FPU_STAT_CREATE_EX(cmp_seq_d); | ||
274 | FPU_STAT_CREATE_EX(cmp_sle_s); | ||
275 | FPU_STAT_CREATE_EX(cmp_sle_d); | ||
276 | FPU_STAT_CREATE_EX(cmp_slt_s); | ||
277 | FPU_STAT_CREATE_EX(cmp_slt_d); | ||
278 | FPU_STAT_CREATE_EX(cmp_sne_s); | ||
279 | FPU_STAT_CREATE_EX(cmp_sne_d); | ||
280 | FPU_STAT_CREATE_EX(cmp_sor_s); | ||
281 | FPU_STAT_CREATE_EX(cmp_sor_d); | ||
282 | FPU_STAT_CREATE_EX(cmp_sueq_s); | ||
283 | FPU_STAT_CREATE_EX(cmp_sueq_d); | ||
284 | FPU_STAT_CREATE_EX(cmp_sule_s); | ||
285 | FPU_STAT_CREATE_EX(cmp_sule_d); | ||
286 | FPU_STAT_CREATE_EX(cmp_sult_s); | ||
287 | FPU_STAT_CREATE_EX(cmp_sult_d); | ||
288 | FPU_STAT_CREATE_EX(cmp_sun_s); | ||
289 | FPU_STAT_CREATE_EX(cmp_sun_d); | ||
290 | FPU_STAT_CREATE_EX(cmp_sune_s); | ||
291 | FPU_STAT_CREATE_EX(cmp_sune_d); | ||
292 | FPU_STAT_CREATE_EX(cvt_d_l); | ||
293 | FPU_STAT_CREATE_EX(cvt_d_s); | ||
294 | FPU_STAT_CREATE_EX(cvt_d_w); | ||
295 | FPU_STAT_CREATE_EX(cvt_l_s); | ||
296 | FPU_STAT_CREATE_EX(cvt_l_d); | ||
297 | FPU_STAT_CREATE_EX(cvt_s_d); | ||
298 | FPU_STAT_CREATE_EX(cvt_s_l); | ||
299 | FPU_STAT_CREATE_EX(cvt_s_w); | ||
300 | FPU_STAT_CREATE_EX(cvt_w_s); | ||
301 | FPU_STAT_CREATE_EX(cvt_w_d); | ||
302 | FPU_STAT_CREATE_EX(div_s); | ||
303 | FPU_STAT_CREATE_EX(div_d); | ||
304 | FPU_STAT_CREATE_EX(floor_w_s); | ||
305 | FPU_STAT_CREATE_EX(floor_w_d); | ||
306 | FPU_STAT_CREATE_EX(floor_l_s); | ||
307 | FPU_STAT_CREATE_EX(floor_l_d); | ||
308 | FPU_STAT_CREATE_EX(maddf_s); | ||
309 | FPU_STAT_CREATE_EX(maddf_d); | ||
310 | FPU_STAT_CREATE_EX(max_s); | ||
311 | FPU_STAT_CREATE_EX(max_d); | ||
312 | FPU_STAT_CREATE_EX(maxa_s); | ||
313 | FPU_STAT_CREATE_EX(maxa_d); | ||
314 | FPU_STAT_CREATE_EX(min_s); | ||
315 | FPU_STAT_CREATE_EX(min_d); | ||
316 | FPU_STAT_CREATE_EX(mina_s); | ||
317 | FPU_STAT_CREATE_EX(mina_d); | ||
318 | FPU_STAT_CREATE_EX(mov_s); | ||
319 | FPU_STAT_CREATE_EX(mov_d); | ||
320 | FPU_STAT_CREATE_EX(msubf_s); | ||
321 | FPU_STAT_CREATE_EX(msubf_d); | ||
322 | FPU_STAT_CREATE_EX(mul_s); | ||
323 | FPU_STAT_CREATE_EX(mul_d); | ||
324 | FPU_STAT_CREATE_EX(neg_s); | ||
325 | FPU_STAT_CREATE_EX(neg_d); | ||
326 | FPU_STAT_CREATE_EX(recip_s); | ||
327 | FPU_STAT_CREATE_EX(recip_d); | ||
328 | FPU_STAT_CREATE_EX(rint_s); | ||
329 | FPU_STAT_CREATE_EX(rint_d); | ||
330 | FPU_STAT_CREATE_EX(round_w_s); | ||
331 | FPU_STAT_CREATE_EX(round_w_d); | ||
332 | FPU_STAT_CREATE_EX(round_l_s); | ||
333 | FPU_STAT_CREATE_EX(round_l_d); | ||
334 | FPU_STAT_CREATE_EX(rsqrt_s); | ||
335 | FPU_STAT_CREATE_EX(rsqrt_d); | ||
336 | FPU_STAT_CREATE_EX(sel_s); | ||
337 | FPU_STAT_CREATE_EX(sel_d); | ||
338 | FPU_STAT_CREATE_EX(seleqz_s); | ||
339 | FPU_STAT_CREATE_EX(seleqz_d); | ||
340 | FPU_STAT_CREATE_EX(selnez_s); | ||
341 | FPU_STAT_CREATE_EX(selnez_d); | ||
342 | FPU_STAT_CREATE_EX(sqrt_s); | ||
343 | FPU_STAT_CREATE_EX(sqrt_d); | ||
344 | FPU_STAT_CREATE_EX(sub_s); | ||
345 | FPU_STAT_CREATE_EX(sub_d); | ||
346 | FPU_STAT_CREATE_EX(trunc_w_s); | ||
347 | FPU_STAT_CREATE_EX(trunc_w_d); | ||
348 | FPU_STAT_CREATE_EX(trunc_l_s); | ||
349 | FPU_STAT_CREATE_EX(trunc_l_d); | ||
350 | |||
351 | return 0; | ||
352 | } | ||
353 | arch_initcall(debugfs_fpuemu); | ||