Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * This file is subject to the terms and conditions of the GNU General Public | |
3 | * License. See the file "COPYING" in the main directory of this archive | |
4 | * for more details. | |
5 | * | |
6 | * Copyright (C) 2003, 2004 Ralf Baechle | |
4194318c | 7 | * Copyright (C) 2004 Maciej W. Rozycki |
1da177e4 LT |
8 | */ |
9 | #ifndef __ASM_CPU_FEATURES_H | |
10 | #define __ASM_CPU_FEATURES_H | |
11 | ||
1da177e4 LT |
12 | #include <asm/cpu.h> |
13 | #include <asm/cpu-info.h> | |
14 | #include <cpu-feature-overrides.h> | |
15 | ||
16 | /* | |
17 | * SMP assumption: Options of CPU 0 are a superset of all processors. | |
18 | * This is true for all known MIPS systems. | |
19 | */ | |
20 | #ifndef cpu_has_tlb | |
21 | #define cpu_has_tlb (cpu_data[0].options & MIPS_CPU_TLB) | |
22 | #endif | |
1745c1ef LY |
23 | #ifndef cpu_has_tlbinv |
24 | #define cpu_has_tlbinv (cpu_data[0].options & MIPS_CPU_TLBINV) | |
25 | #endif | |
4a0156fb SH |
26 | #ifndef cpu_has_segments |
27 | #define cpu_has_segments (cpu_data[0].options & MIPS_CPU_SEGMENTS) | |
28 | #endif | |
7ae66966 MC |
29 | #ifndef cpu_has_eva |
30 | #define cpu_has_eva (cpu_data[0].options & MIPS_CPU_EVA) | |
31 | #endif | |
e647e6b5 MC |
32 | #ifndef cpu_has_htw |
33 | #define cpu_has_htw (cpu_data[0].options & MIPS_CPU_HTW) | |
34 | #endif | |
6ee729aa LY |
35 | #ifndef cpu_has_rixiex |
36 | #define cpu_has_rixiex (cpu_data[0].options & MIPS_CPU_RIXIEX) | |
37 | #endif | |
1f6c52ff PB |
38 | #ifndef cpu_has_maar |
39 | #define cpu_has_maar (cpu_data[0].options & MIPS_CPU_MAAR) | |
40 | #endif | |
5aed9da1 MC |
41 | #ifndef cpu_has_rw_llb |
42 | #define cpu_has_rw_llb (cpu_data[0].options & MIPS_CPU_RW_LLB) | |
43 | #endif | |
1990e542 RB |
44 | |
45 | /* | |
46 | * For the moment we don't consider R6000 and R8000 so we can assume that | |
47 | * anything that doesn't support R4000-style exceptions and interrupts is | |
48 | * R3000-like. Users should still treat these two macro definitions as | |
49 | * opaque. | |
50 | */ | |
51 | #ifndef cpu_has_3kex | |
52 | #define cpu_has_3kex (!cpu_has_4kex) | |
53 | #endif | |
1da177e4 LT |
54 | #ifndef cpu_has_4kex |
55 | #define cpu_has_4kex (cpu_data[0].options & MIPS_CPU_4KEX) | |
56 | #endif | |
02cf2119 RB |
57 | #ifndef cpu_has_3k_cache |
58 | #define cpu_has_3k_cache (cpu_data[0].options & MIPS_CPU_3K_CACHE) | |
59 | #endif | |
60 | #define cpu_has_6k_cache 0 | |
61 | #define cpu_has_8k_cache 0 | |
62 | #ifndef cpu_has_4k_cache | |
63 | #define cpu_has_4k_cache (cpu_data[0].options & MIPS_CPU_4K_CACHE) | |
64 | #endif | |
65 | #ifndef cpu_has_tx39_cache | |
66 | #define cpu_has_tx39_cache (cpu_data[0].options & MIPS_CPU_TX39_CACHE) | |
67 | #endif | |
47d979ec DD |
68 | #ifndef cpu_has_octeon_cache |
69 | #define cpu_has_octeon_cache 0 | |
70 | #endif | |
1da177e4 | 71 | #ifndef cpu_has_fpu |
f088fc84 | 72 | #define cpu_has_fpu (current_cpu_data.options & MIPS_CPU_FPU) |
53dc8028 AN |
73 | #define raw_cpu_has_fpu (raw_current_cpu_data.options & MIPS_CPU_FPU) |
74 | #else | |
75 | #define raw_cpu_has_fpu cpu_has_fpu | |
1da177e4 LT |
76 | #endif |
77 | #ifndef cpu_has_32fpr | |
78 | #define cpu_has_32fpr (cpu_data[0].options & MIPS_CPU_32FPR) | |
79 | #endif | |
80 | #ifndef cpu_has_counter | |
81 | #define cpu_has_counter (cpu_data[0].options & MIPS_CPU_COUNTER) | |
82 | #endif | |
83 | #ifndef cpu_has_watch | |
84 | #define cpu_has_watch (cpu_data[0].options & MIPS_CPU_WATCH) | |
85 | #endif | |
1da177e4 LT |
86 | #ifndef cpu_has_divec |
87 | #define cpu_has_divec (cpu_data[0].options & MIPS_CPU_DIVEC) | |
88 | #endif | |
89 | #ifndef cpu_has_vce | |
90 | #define cpu_has_vce (cpu_data[0].options & MIPS_CPU_VCE) | |
91 | #endif | |
92 | #ifndef cpu_has_cache_cdex_p | |
93 | #define cpu_has_cache_cdex_p (cpu_data[0].options & MIPS_CPU_CACHE_CDEX_P) | |
94 | #endif | |
95 | #ifndef cpu_has_cache_cdex_s | |
96 | #define cpu_has_cache_cdex_s (cpu_data[0].options & MIPS_CPU_CACHE_CDEX_S) | |
97 | #endif | |
98 | #ifndef cpu_has_prefetch | |
99 | #define cpu_has_prefetch (cpu_data[0].options & MIPS_CPU_PREFETCH) | |
100 | #endif | |
101 | #ifndef cpu_has_mcheck | |
102 | #define cpu_has_mcheck (cpu_data[0].options & MIPS_CPU_MCHECK) | |
103 | #endif | |
104 | #ifndef cpu_has_ejtag | |
105 | #define cpu_has_ejtag (cpu_data[0].options & MIPS_CPU_EJTAG) | |
106 | #endif | |
107 | #ifndef cpu_has_llsc | |
108 | #define cpu_has_llsc (cpu_data[0].options & MIPS_CPU_LLSC) | |
109 | #endif | |
b791d119 DD |
110 | #ifndef kernel_uses_llsc |
111 | #define kernel_uses_llsc cpu_has_llsc | |
112 | #endif | |
4194318c RB |
113 | #ifndef cpu_has_mips16 |
114 | #define cpu_has_mips16 (cpu_data[0].ases & MIPS_ASE_MIPS16) | |
115 | #endif | |
116 | #ifndef cpu_has_mdmx | |
fc192e50 | 117 | #define cpu_has_mdmx (cpu_data[0].ases & MIPS_ASE_MDMX) |
4194318c RB |
118 | #endif |
119 | #ifndef cpu_has_mips3d | |
fc192e50 | 120 | #define cpu_has_mips3d (cpu_data[0].ases & MIPS_ASE_MIPS3D) |
4194318c RB |
121 | #endif |
122 | #ifndef cpu_has_smartmips | |
fc192e50 | 123 | #define cpu_has_smartmips (cpu_data[0].ases & MIPS_ASE_SMARTMIPS) |
4194318c | 124 | #endif |
a68d09a1 | 125 | |
b2ab4f08 | 126 | #ifndef cpu_has_rixi |
a68d09a1 DD |
127 | # ifdef CONFIG_64BIT |
128 | # define cpu_has_rixi (cpu_data[0].options & MIPS_CPU_RIXI) | |
129 | # else /* CONFIG_32BIT */ | |
130 | # define cpu_has_rixi ((cpu_data[0].options & MIPS_CPU_RIXI) && !cpu_has_64bits) | |
131 | # endif | |
b2ab4f08 | 132 | #endif |
a68d09a1 | 133 | |
f8fa4811 | 134 | #ifndef cpu_has_mmips |
3ddc14ad DD |
135 | # ifdef CONFIG_SYS_SUPPORTS_MICROMIPS |
136 | # define cpu_has_mmips (cpu_data[0].options & MIPS_CPU_MICROMIPS) | |
137 | # else | |
138 | # define cpu_has_mmips 0 | |
139 | # endif | |
f8fa4811 | 140 | #endif |
a68d09a1 | 141 | |
1da177e4 LT |
142 | #ifndef cpu_has_vtag_icache |
143 | #define cpu_has_vtag_icache (cpu_data[0].icache.flags & MIPS_CACHE_VTAG) | |
144 | #endif | |
145 | #ifndef cpu_has_dc_aliases | |
146 | #define cpu_has_dc_aliases (cpu_data[0].dcache.flags & MIPS_CACHE_ALIASES) | |
147 | #endif | |
148 | #ifndef cpu_has_ic_fills_f_dc | |
149 | #define cpu_has_ic_fills_f_dc (cpu_data[0].icache.flags & MIPS_CACHE_IC_F_DC) | |
150 | #endif | |
de62893b | 151 | #ifndef cpu_has_pindexed_dcache |
fc192e50 | 152 | #define cpu_has_pindexed_dcache (cpu_data[0].dcache.flags & MIPS_CACHE_PINDEX) |
de62893b | 153 | #endif |
8759934e HC |
154 | #ifndef cpu_has_local_ebase |
155 | #define cpu_has_local_ebase 1 | |
156 | #endif | |
1da177e4 LT |
157 | |
158 | /* | |
70342287 | 159 | * I-Cache snoops remote store. This only matters on SMP. Some multiprocessors |
1da177e4 LT |
160 | * such as the R10000 have I-Caches that snoop local stores; the embedded ones |
161 | * don't. For maintaining I-cache coherency this means we need to flush the | |
162 | * D-cache all the way back to whever the I-cache does refills from, so the | |
163 | * I-cache has a chance to see the new data at all. Then we have to flush the | |
164 | * I-cache also. | |
165 | * Note we may have been rescheduled and may no longer be running on the CPU | |
166 | * that did the store so we can't optimize this into only doing the flush on | |
167 | * the local CPU. | |
168 | */ | |
169 | #ifndef cpu_icache_snoops_remote_store | |
170 | #ifdef CONFIG_SMP | |
171 | #define cpu_icache_snoops_remote_store (cpu_data[0].icache.flags & MIPS_IC_SNOOPS_REMOTE) | |
172 | #else | |
173 | #define cpu_icache_snoops_remote_store 1 | |
174 | #endif | |
175 | #endif | |
176 | ||
515a6393 MC |
177 | #ifndef cpu_has_mips_1 |
178 | # define cpu_has_mips_1 (!cpu_has_mips_r6) | |
179 | #endif | |
a96102be SH |
180 | #ifndef cpu_has_mips_2 |
181 | # define cpu_has_mips_2 (cpu_data[0].isa_level & MIPS_CPU_ISA_II) | |
182 | #endif | |
183 | #ifndef cpu_has_mips_3 | |
184 | # define cpu_has_mips_3 (cpu_data[0].isa_level & MIPS_CPU_ISA_III) | |
185 | #endif | |
186 | #ifndef cpu_has_mips_4 | |
187 | # define cpu_has_mips_4 (cpu_data[0].isa_level & MIPS_CPU_ISA_IV) | |
188 | #endif | |
189 | #ifndef cpu_has_mips_5 | |
190 | # define cpu_has_mips_5 (cpu_data[0].isa_level & MIPS_CPU_ISA_V) | |
191 | #endif | |
fc192e50 | 192 | #ifndef cpu_has_mips32r1 |
0401572a | 193 | # define cpu_has_mips32r1 (cpu_data[0].isa_level & MIPS_CPU_ISA_M32R1) |
fc192e50 TW |
194 | #endif |
195 | #ifndef cpu_has_mips32r2 | |
0401572a | 196 | # define cpu_has_mips32r2 (cpu_data[0].isa_level & MIPS_CPU_ISA_M32R2) |
fc192e50 | 197 | #endif |
34c56fc1 LY |
198 | #ifndef cpu_has_mips32r6 |
199 | # define cpu_has_mips32r6 (cpu_data[0].isa_level & MIPS_CPU_ISA_M32R6) | |
200 | #endif | |
fc192e50 | 201 | #ifndef cpu_has_mips64r1 |
0401572a | 202 | # define cpu_has_mips64r1 (cpu_data[0].isa_level & MIPS_CPU_ISA_M64R1) |
fc192e50 TW |
203 | #endif |
204 | #ifndef cpu_has_mips64r2 | |
0401572a | 205 | # define cpu_has_mips64r2 (cpu_data[0].isa_level & MIPS_CPU_ISA_M64R2) |
fc192e50 | 206 | #endif |
34c56fc1 LY |
207 | #ifndef cpu_has_mips64r6 |
208 | # define cpu_has_mips64r6 (cpu_data[0].isa_level & MIPS_CPU_ISA_M64R6) | |
209 | #endif | |
0401572a RB |
210 | |
211 | /* | |
212 | * Shortcuts ... | |
213 | */ | |
08a07904 RB |
214 | #define cpu_has_mips_2_3_4_5 (cpu_has_mips_2 | cpu_has_mips_3_4_5) |
215 | #define cpu_has_mips_3_4_5 (cpu_has_mips_3 | cpu_has_mips_4_5) | |
216 | #define cpu_has_mips_4_5 (cpu_has_mips_4 | cpu_has_mips_5) | |
217 | ||
218 | #define cpu_has_mips_2_3_4_5_r (cpu_has_mips_2 | cpu_has_mips_3_4_5_r) | |
219 | #define cpu_has_mips_3_4_5_r (cpu_has_mips_3 | cpu_has_mips_4_5_r) | |
220 | #define cpu_has_mips_4_5_r (cpu_has_mips_4 | cpu_has_mips_5_r) | |
221 | #define cpu_has_mips_5_r (cpu_has_mips_5 | cpu_has_mips_r) | |
222 | ||
e0d32f33 MC |
223 | #define cpu_has_mips_4_5_r2_r6 (cpu_has_mips_4_5 | cpu_has_mips_r2 | \ |
224 | cpu_has_mips_r6) | |
08a07904 | 225 | |
34c56fc1 LY |
226 | #define cpu_has_mips32 (cpu_has_mips32r1 | cpu_has_mips32r2 | cpu_has_mips32r6) |
227 | #define cpu_has_mips64 (cpu_has_mips64r1 | cpu_has_mips64r2 | cpu_has_mips64r6) | |
70342287 RB |
228 | #define cpu_has_mips_r1 (cpu_has_mips32r1 | cpu_has_mips64r1) |
229 | #define cpu_has_mips_r2 (cpu_has_mips32r2 | cpu_has_mips64r2) | |
34c56fc1 | 230 | #define cpu_has_mips_r6 (cpu_has_mips32r6 | cpu_has_mips64r6) |
c46b302b | 231 | #define cpu_has_mips_r (cpu_has_mips32r1 | cpu_has_mips32r2 | \ |
34c56fc1 LY |
232 | cpu_has_mips32r6 | cpu_has_mips64r1 | \ |
233 | cpu_has_mips64r2 | cpu_has_mips64r6) | |
234 | ||
235 | /* MIPSR2 and MIPSR6 have a lot of similarities */ | |
236 | #define cpu_has_mips_r2_r6 (cpu_has_mips_r2 | cpu_has_mips_r6) | |
0401572a | 237 | |
41f0e4d0 | 238 | #ifndef cpu_has_mips_r2_exec_hazard |
34c56fc1 | 239 | #define cpu_has_mips_r2_exec_hazard (cpu_has_mips_r2 | cpu_has_mips_r6) |
41f0e4d0 DD |
240 | #endif |
241 | ||
47740eb8 RB |
242 | /* |
243 | * MIPS32, MIPS64, VR5500, IDT32332, IDT32334 and maybe a few other | |
becee6b8 | 244 | * pre-MIPS32/MIPS64 processors have CLO, CLZ. The IDT RC64574 is 64-bit and |
417a5eb0 | 245 | * has CLO and CLZ but not DCLO nor DCLZ. For 64-bit kernels |
47740eb8 RB |
246 | * cpu_has_clo_clz also indicates the availability of DCLO and DCLZ. |
247 | */ | |
fc192e50 TW |
248 | #ifndef cpu_has_clo_clz |
249 | #define cpu_has_clo_clz cpu_has_mips_r | |
250 | #endif | |
47740eb8 | 251 | |
3c09bae4 CJ |
252 | /* |
253 | * MIPS32 R2, MIPS64 R2, Loongson 3A and Octeon have WSBH. | |
254 | * MIPS64 R2, Loongson 3A and Octeon have WSBH, DSBH and DSHD. | |
255 | * This indicates the availability of WSBH and in case of 64 bit CPUs also | |
256 | * DSBH and DSHD. | |
257 | */ | |
258 | #ifndef cpu_has_wsbh | |
259 | #define cpu_has_wsbh cpu_has_mips_r2 | |
260 | #endif | |
261 | ||
e50c0a8f RB |
262 | #ifndef cpu_has_dsp |
263 | #define cpu_has_dsp (cpu_data[0].ases & MIPS_ASE_DSP) | |
264 | #endif | |
265 | ||
ee80f7c7 SH |
266 | #ifndef cpu_has_dsp2 |
267 | #define cpu_has_dsp2 (cpu_data[0].ases & MIPS_ASE_DSP2P) | |
268 | #endif | |
269 | ||
8f40611d | 270 | #ifndef cpu_has_mipsmt |
2e128ded | 271 | #define cpu_has_mipsmt (cpu_data[0].ases & MIPS_ASE_MIPSMT) |
8f40611d RB |
272 | #endif |
273 | ||
a3692020 RB |
274 | #ifndef cpu_has_userlocal |
275 | #define cpu_has_userlocal (cpu_data[0].options & MIPS_CPU_ULRI) | |
276 | #endif | |
277 | ||
875d43e7 | 278 | #ifdef CONFIG_32BIT |
1da177e4 LT |
279 | # ifndef cpu_has_nofpuex |
280 | # define cpu_has_nofpuex (cpu_data[0].options & MIPS_CPU_NOFPUEX) | |
281 | # endif | |
282 | # ifndef cpu_has_64bits | |
283 | # define cpu_has_64bits (cpu_data[0].isa_level & MIPS_CPU_ISA_64BIT) | |
284 | # endif | |
285 | # ifndef cpu_has_64bit_zero_reg | |
fc192e50 | 286 | # define cpu_has_64bit_zero_reg (cpu_data[0].isa_level & MIPS_CPU_ISA_64BIT) |
1da177e4 LT |
287 | # endif |
288 | # ifndef cpu_has_64bit_gp_regs | |
289 | # define cpu_has_64bit_gp_regs 0 | |
290 | # endif | |
291 | # ifndef cpu_has_64bit_addresses | |
292 | # define cpu_has_64bit_addresses 0 | |
293 | # endif | |
91dfc423 GR |
294 | # ifndef cpu_vmbits |
295 | # define cpu_vmbits 31 | |
296 | # endif | |
1da177e4 LT |
297 | #endif |
298 | ||
875d43e7 | 299 | #ifdef CONFIG_64BIT |
1da177e4 LT |
300 | # ifndef cpu_has_nofpuex |
301 | # define cpu_has_nofpuex 0 | |
302 | # endif | |
303 | # ifndef cpu_has_64bits | |
304 | # define cpu_has_64bits 1 | |
305 | # endif | |
306 | # ifndef cpu_has_64bit_zero_reg | |
307 | # define cpu_has_64bit_zero_reg 1 | |
308 | # endif | |
309 | # ifndef cpu_has_64bit_gp_regs | |
310 | # define cpu_has_64bit_gp_regs 1 | |
311 | # endif | |
312 | # ifndef cpu_has_64bit_addresses | |
313 | # define cpu_has_64bit_addresses 1 | |
314 | # endif | |
91dfc423 GR |
315 | # ifndef cpu_vmbits |
316 | # define cpu_vmbits cpu_data[0].vmbits | |
317 | # define __NEED_VMBITS_PROBE | |
318 | # endif | |
1da177e4 LT |
319 | #endif |
320 | ||
f41ae0b2 RB |
321 | #if defined(CONFIG_CPU_MIPSR2_IRQ_VI) && !defined(cpu_has_vint) |
322 | # define cpu_has_vint (cpu_data[0].options & MIPS_CPU_VINT) | |
323 | #elif !defined(cpu_has_vint) | |
8f40611d | 324 | # define cpu_has_vint 0 |
f41ae0b2 RB |
325 | #endif |
326 | ||
327 | #if defined(CONFIG_CPU_MIPSR2_IRQ_EI) && !defined(cpu_has_veic) | |
328 | # define cpu_has_veic (cpu_data[0].options & MIPS_CPU_VEIC) | |
329 | #elif !defined(cpu_has_veic) | |
8f40611d RB |
330 | # define cpu_has_veic 0 |
331 | #endif | |
332 | ||
fc5d2d27 RB |
333 | #ifndef cpu_has_inclusive_pcaches |
334 | #define cpu_has_inclusive_pcaches (cpu_data[0].options & MIPS_CPU_INCLUSIVE_CACHES) | |
1da177e4 LT |
335 | #endif |
336 | ||
337 | #ifndef cpu_dcache_line_size | |
54fd6441 | 338 | #define cpu_dcache_line_size() cpu_data[0].dcache.linesz |
1da177e4 LT |
339 | #endif |
340 | #ifndef cpu_icache_line_size | |
54fd6441 | 341 | #define cpu_icache_line_size() cpu_data[0].icache.linesz |
1da177e4 LT |
342 | #endif |
343 | #ifndef cpu_scache_line_size | |
54fd6441 | 344 | #define cpu_scache_line_size() cpu_data[0].scache.linesz |
1da177e4 LT |
345 | #endif |
346 | ||
fbeda19f DD |
347 | #ifndef cpu_hwrena_impl_bits |
348 | #define cpu_hwrena_impl_bits 0 | |
349 | #endif | |
350 | ||
da4b62cd AC |
351 | #ifndef cpu_has_perf_cntr_intr_bit |
352 | #define cpu_has_perf_cntr_intr_bit (cpu_data[0].options & MIPS_CPU_PCI) | |
353 | #endif | |
354 | ||
1e7decdb DD |
355 | #ifndef cpu_has_vz |
356 | #define cpu_has_vz (cpu_data[0].ases & MIPS_ASE_VZ) | |
357 | #endif | |
358 | ||
a5e9a69e PB |
359 | #if defined(CONFIG_CPU_HAS_MSA) && !defined(cpu_has_msa) |
360 | # define cpu_has_msa (cpu_data[0].ases & MIPS_ASE_MSA) | |
361 | #elif !defined(cpu_has_msa) | |
362 | # define cpu_has_msa 0 | |
363 | #endif | |
364 | ||
adac5d53 PB |
365 | #ifndef cpu_has_fre |
366 | # define cpu_has_fre (cpu_data[0].options & MIPS_CPU_FRE) | |
367 | #endif | |
368 | ||
9b3274bd JH |
369 | #ifndef cpu_has_cdmm |
370 | # define cpu_has_cdmm (cpu_data[0].options & MIPS_CPU_CDMM) | |
371 | #endif | |
372 | ||
1da177e4 | 373 | #endif /* __ASM_CPU_FEATURES_H */ |