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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 | |
2f6f3136 JH |
23 | #ifndef cpu_has_ftlb |
24 | #define cpu_has_ftlb (cpu_data[0].options & MIPS_CPU_FTLB) | |
25 | #endif | |
1745c1ef LY |
26 | #ifndef cpu_has_tlbinv |
27 | #define cpu_has_tlbinv (cpu_data[0].options & MIPS_CPU_TLBINV) | |
28 | #endif | |
4a0156fb SH |
29 | #ifndef cpu_has_segments |
30 | #define cpu_has_segments (cpu_data[0].options & MIPS_CPU_SEGMENTS) | |
31 | #endif | |
7ae66966 MC |
32 | #ifndef cpu_has_eva |
33 | #define cpu_has_eva (cpu_data[0].options & MIPS_CPU_EVA) | |
34 | #endif | |
e647e6b5 MC |
35 | #ifndef cpu_has_htw |
36 | #define cpu_has_htw (cpu_data[0].options & MIPS_CPU_HTW) | |
37 | #endif | |
380cd582 HC |
38 | #ifndef cpu_has_ldpte |
39 | #define cpu_has_ldpte (cpu_data[0].options & MIPS_CPU_LDPTE) | |
40 | #endif | |
6ee729aa LY |
41 | #ifndef cpu_has_rixiex |
42 | #define cpu_has_rixiex (cpu_data[0].options & MIPS_CPU_RIXIEX) | |
43 | #endif | |
1f6c52ff PB |
44 | #ifndef cpu_has_maar |
45 | #define cpu_has_maar (cpu_data[0].options & MIPS_CPU_MAAR) | |
46 | #endif | |
5aed9da1 MC |
47 | #ifndef cpu_has_rw_llb |
48 | #define cpu_has_rw_llb (cpu_data[0].options & MIPS_CPU_RW_LLB) | |
49 | #endif | |
1990e542 RB |
50 | |
51 | /* | |
52 | * For the moment we don't consider R6000 and R8000 so we can assume that | |
53 | * anything that doesn't support R4000-style exceptions and interrupts is | |
54 | * R3000-like. Users should still treat these two macro definitions as | |
55 | * opaque. | |
56 | */ | |
57 | #ifndef cpu_has_3kex | |
58 | #define cpu_has_3kex (!cpu_has_4kex) | |
59 | #endif | |
1da177e4 LT |
60 | #ifndef cpu_has_4kex |
61 | #define cpu_has_4kex (cpu_data[0].options & MIPS_CPU_4KEX) | |
62 | #endif | |
02cf2119 RB |
63 | #ifndef cpu_has_3k_cache |
64 | #define cpu_has_3k_cache (cpu_data[0].options & MIPS_CPU_3K_CACHE) | |
65 | #endif | |
66 | #define cpu_has_6k_cache 0 | |
67 | #define cpu_has_8k_cache 0 | |
68 | #ifndef cpu_has_4k_cache | |
69 | #define cpu_has_4k_cache (cpu_data[0].options & MIPS_CPU_4K_CACHE) | |
70 | #endif | |
71 | #ifndef cpu_has_tx39_cache | |
72 | #define cpu_has_tx39_cache (cpu_data[0].options & MIPS_CPU_TX39_CACHE) | |
73 | #endif | |
47d979ec DD |
74 | #ifndef cpu_has_octeon_cache |
75 | #define cpu_has_octeon_cache 0 | |
76 | #endif | |
18a2c2c6 | 77 | /* Don't override `cpu_has_fpu' to 1 or the "nofpu" option won't work. */ |
1da177e4 | 78 | #ifndef cpu_has_fpu |
f088fc84 | 79 | #define cpu_has_fpu (current_cpu_data.options & MIPS_CPU_FPU) |
53dc8028 AN |
80 | #define raw_cpu_has_fpu (raw_current_cpu_data.options & MIPS_CPU_FPU) |
81 | #else | |
82 | #define raw_cpu_has_fpu cpu_has_fpu | |
1da177e4 LT |
83 | #endif |
84 | #ifndef cpu_has_32fpr | |
85 | #define cpu_has_32fpr (cpu_data[0].options & MIPS_CPU_32FPR) | |
86 | #endif | |
87 | #ifndef cpu_has_counter | |
88 | #define cpu_has_counter (cpu_data[0].options & MIPS_CPU_COUNTER) | |
89 | #endif | |
90 | #ifndef cpu_has_watch | |
91 | #define cpu_has_watch (cpu_data[0].options & MIPS_CPU_WATCH) | |
92 | #endif | |
1da177e4 LT |
93 | #ifndef cpu_has_divec |
94 | #define cpu_has_divec (cpu_data[0].options & MIPS_CPU_DIVEC) | |
95 | #endif | |
96 | #ifndef cpu_has_vce | |
97 | #define cpu_has_vce (cpu_data[0].options & MIPS_CPU_VCE) | |
98 | #endif | |
99 | #ifndef cpu_has_cache_cdex_p | |
100 | #define cpu_has_cache_cdex_p (cpu_data[0].options & MIPS_CPU_CACHE_CDEX_P) | |
101 | #endif | |
102 | #ifndef cpu_has_cache_cdex_s | |
103 | #define cpu_has_cache_cdex_s (cpu_data[0].options & MIPS_CPU_CACHE_CDEX_S) | |
104 | #endif | |
105 | #ifndef cpu_has_prefetch | |
106 | #define cpu_has_prefetch (cpu_data[0].options & MIPS_CPU_PREFETCH) | |
107 | #endif | |
108 | #ifndef cpu_has_mcheck | |
109 | #define cpu_has_mcheck (cpu_data[0].options & MIPS_CPU_MCHECK) | |
110 | #endif | |
111 | #ifndef cpu_has_ejtag | |
112 | #define cpu_has_ejtag (cpu_data[0].options & MIPS_CPU_EJTAG) | |
113 | #endif | |
114 | #ifndef cpu_has_llsc | |
115 | #define cpu_has_llsc (cpu_data[0].options & MIPS_CPU_LLSC) | |
116 | #endif | |
8d5ded16 JK |
117 | #ifndef cpu_has_bp_ghist |
118 | #define cpu_has_bp_ghist (cpu_data[0].options & MIPS_CPU_BP_GHIST) | |
119 | #endif | |
b791d119 DD |
120 | #ifndef kernel_uses_llsc |
121 | #define kernel_uses_llsc cpu_has_llsc | |
122 | #endif | |
6ad816e7 JH |
123 | #ifndef cpu_has_guestctl0ext |
124 | #define cpu_has_guestctl0ext (cpu_data[0].options & MIPS_CPU_GUESTCTL0EXT) | |
125 | #endif | |
126 | #ifndef cpu_has_guestctl1 | |
127 | #define cpu_has_guestctl1 (cpu_data[0].options & MIPS_CPU_GUESTCTL1) | |
128 | #endif | |
129 | #ifndef cpu_has_guestctl2 | |
130 | #define cpu_has_guestctl2 (cpu_data[0].options & MIPS_CPU_GUESTCTL2) | |
131 | #endif | |
132 | #ifndef cpu_has_guestid | |
133 | #define cpu_has_guestid (cpu_data[0].options & MIPS_CPU_GUESTID) | |
134 | #endif | |
135 | #ifndef cpu_has_drg | |
136 | #define cpu_has_drg (cpu_data[0].options & MIPS_CPU_DRG) | |
137 | #endif | |
4194318c RB |
138 | #ifndef cpu_has_mips16 |
139 | #define cpu_has_mips16 (cpu_data[0].ases & MIPS_ASE_MIPS16) | |
140 | #endif | |
8d1630f1 MR |
141 | #ifndef cpu_has_mips16e2 |
142 | #define cpu_has_mips16e2 (cpu_data[0].ases & MIPS_ASE_MIPS16E2) | |
143 | #endif | |
4194318c | 144 | #ifndef cpu_has_mdmx |
fc192e50 | 145 | #define cpu_has_mdmx (cpu_data[0].ases & MIPS_ASE_MDMX) |
4194318c RB |
146 | #endif |
147 | #ifndef cpu_has_mips3d | |
fc192e50 | 148 | #define cpu_has_mips3d (cpu_data[0].ases & MIPS_ASE_MIPS3D) |
4194318c RB |
149 | #endif |
150 | #ifndef cpu_has_smartmips | |
fc192e50 | 151 | #define cpu_has_smartmips (cpu_data[0].ases & MIPS_ASE_SMARTMIPS) |
4194318c | 152 | #endif |
a68d09a1 | 153 | |
b2ab4f08 | 154 | #ifndef cpu_has_rixi |
033549c6 | 155 | #define cpu_has_rixi (cpu_data[0].options & MIPS_CPU_RIXI) |
b2ab4f08 | 156 | #endif |
a68d09a1 | 157 | |
f8fa4811 | 158 | #ifndef cpu_has_mmips |
3ddc14ad DD |
159 | # ifdef CONFIG_SYS_SUPPORTS_MICROMIPS |
160 | # define cpu_has_mmips (cpu_data[0].options & MIPS_CPU_MICROMIPS) | |
161 | # else | |
162 | # define cpu_has_mmips 0 | |
163 | # endif | |
f8fa4811 | 164 | #endif |
a68d09a1 | 165 | |
12822570 JH |
166 | #ifndef cpu_has_lpa |
167 | #define cpu_has_lpa (cpu_data[0].options & MIPS_CPU_LPA) | |
168 | #endif | |
169 | #ifndef cpu_has_mvh | |
170 | #define cpu_has_mvh (cpu_data[0].options & MIPS_CPU_MVH) | |
171 | #endif | |
c5b36783 | 172 | #ifndef cpu_has_xpa |
12822570 | 173 | #define cpu_has_xpa (cpu_has_lpa && cpu_has_mvh) |
c5b36783 | 174 | #endif |
1da177e4 LT |
175 | #ifndef cpu_has_vtag_icache |
176 | #define cpu_has_vtag_icache (cpu_data[0].icache.flags & MIPS_CACHE_VTAG) | |
177 | #endif | |
178 | #ifndef cpu_has_dc_aliases | |
179 | #define cpu_has_dc_aliases (cpu_data[0].dcache.flags & MIPS_CACHE_ALIASES) | |
180 | #endif | |
181 | #ifndef cpu_has_ic_fills_f_dc | |
182 | #define cpu_has_ic_fills_f_dc (cpu_data[0].icache.flags & MIPS_CACHE_IC_F_DC) | |
183 | #endif | |
de62893b | 184 | #ifndef cpu_has_pindexed_dcache |
fc192e50 | 185 | #define cpu_has_pindexed_dcache (cpu_data[0].dcache.flags & MIPS_CACHE_PINDEX) |
de62893b | 186 | #endif |
8759934e HC |
187 | #ifndef cpu_has_local_ebase |
188 | #define cpu_has_local_ebase 1 | |
189 | #endif | |
1da177e4 LT |
190 | |
191 | /* | |
70342287 | 192 | * I-Cache snoops remote store. This only matters on SMP. Some multiprocessors |
1da177e4 LT |
193 | * such as the R10000 have I-Caches that snoop local stores; the embedded ones |
194 | * don't. For maintaining I-cache coherency this means we need to flush the | |
195 | * D-cache all the way back to whever the I-cache does refills from, so the | |
196 | * I-cache has a chance to see the new data at all. Then we have to flush the | |
197 | * I-cache also. | |
198 | * Note we may have been rescheduled and may no longer be running on the CPU | |
199 | * that did the store so we can't optimize this into only doing the flush on | |
200 | * the local CPU. | |
201 | */ | |
202 | #ifndef cpu_icache_snoops_remote_store | |
203 | #ifdef CONFIG_SMP | |
204 | #define cpu_icache_snoops_remote_store (cpu_data[0].icache.flags & MIPS_IC_SNOOPS_REMOTE) | |
205 | #else | |
206 | #define cpu_icache_snoops_remote_store 1 | |
207 | #endif | |
208 | #endif | |
209 | ||
fff7fb0b ZZ |
210 | /* __builtin_constant_p(cpu_has_mips_r) && cpu_has_mips_r */ |
211 | #if !((defined(cpu_has_mips32r1) && cpu_has_mips32r1) || \ | |
212 | (defined(cpu_has_mips32r2) && cpu_has_mips32r2) || \ | |
213 | (defined(cpu_has_mips32r6) && cpu_has_mips32r6) || \ | |
214 | (defined(cpu_has_mips64r1) && cpu_has_mips64r1) || \ | |
215 | (defined(cpu_has_mips64r2) && cpu_has_mips64r2) || \ | |
216 | (defined(cpu_has_mips64r6) && cpu_has_mips64r6)) | |
217 | #define CPU_NO_EFFICIENT_FFS 1 | |
218 | #endif | |
219 | ||
515a6393 MC |
220 | #ifndef cpu_has_mips_1 |
221 | # define cpu_has_mips_1 (!cpu_has_mips_r6) | |
222 | #endif | |
a96102be SH |
223 | #ifndef cpu_has_mips_2 |
224 | # define cpu_has_mips_2 (cpu_data[0].isa_level & MIPS_CPU_ISA_II) | |
225 | #endif | |
226 | #ifndef cpu_has_mips_3 | |
227 | # define cpu_has_mips_3 (cpu_data[0].isa_level & MIPS_CPU_ISA_III) | |
228 | #endif | |
229 | #ifndef cpu_has_mips_4 | |
230 | # define cpu_has_mips_4 (cpu_data[0].isa_level & MIPS_CPU_ISA_IV) | |
231 | #endif | |
232 | #ifndef cpu_has_mips_5 | |
233 | # define cpu_has_mips_5 (cpu_data[0].isa_level & MIPS_CPU_ISA_V) | |
234 | #endif | |
fc192e50 | 235 | #ifndef cpu_has_mips32r1 |
0401572a | 236 | # define cpu_has_mips32r1 (cpu_data[0].isa_level & MIPS_CPU_ISA_M32R1) |
fc192e50 TW |
237 | #endif |
238 | #ifndef cpu_has_mips32r2 | |
0401572a | 239 | # define cpu_has_mips32r2 (cpu_data[0].isa_level & MIPS_CPU_ISA_M32R2) |
fc192e50 | 240 | #endif |
34c56fc1 LY |
241 | #ifndef cpu_has_mips32r6 |
242 | # define cpu_has_mips32r6 (cpu_data[0].isa_level & MIPS_CPU_ISA_M32R6) | |
243 | #endif | |
fc192e50 | 244 | #ifndef cpu_has_mips64r1 |
0401572a | 245 | # define cpu_has_mips64r1 (cpu_data[0].isa_level & MIPS_CPU_ISA_M64R1) |
fc192e50 TW |
246 | #endif |
247 | #ifndef cpu_has_mips64r2 | |
0401572a | 248 | # define cpu_has_mips64r2 (cpu_data[0].isa_level & MIPS_CPU_ISA_M64R2) |
fc192e50 | 249 | #endif |
34c56fc1 LY |
250 | #ifndef cpu_has_mips64r6 |
251 | # define cpu_has_mips64r6 (cpu_data[0].isa_level & MIPS_CPU_ISA_M64R6) | |
252 | #endif | |
0401572a RB |
253 | |
254 | /* | |
255 | * Shortcuts ... | |
256 | */ | |
08a07904 RB |
257 | #define cpu_has_mips_2_3_4_5 (cpu_has_mips_2 | cpu_has_mips_3_4_5) |
258 | #define cpu_has_mips_3_4_5 (cpu_has_mips_3 | cpu_has_mips_4_5) | |
259 | #define cpu_has_mips_4_5 (cpu_has_mips_4 | cpu_has_mips_5) | |
260 | ||
261 | #define cpu_has_mips_2_3_4_5_r (cpu_has_mips_2 | cpu_has_mips_3_4_5_r) | |
262 | #define cpu_has_mips_3_4_5_r (cpu_has_mips_3 | cpu_has_mips_4_5_r) | |
263 | #define cpu_has_mips_4_5_r (cpu_has_mips_4 | cpu_has_mips_5_r) | |
264 | #define cpu_has_mips_5_r (cpu_has_mips_5 | cpu_has_mips_r) | |
265 | ||
2d83fea7 MR |
266 | #define cpu_has_mips_3_4_5_64_r2_r6 \ |
267 | (cpu_has_mips_3 | cpu_has_mips_4_5_64_r2_r6) | |
268 | #define cpu_has_mips_4_5_64_r2_r6 \ | |
269 | (cpu_has_mips_4_5 | cpu_has_mips64r1 | \ | |
270 | cpu_has_mips_r2 | cpu_has_mips_r6) | |
08a07904 | 271 | |
34c56fc1 LY |
272 | #define cpu_has_mips32 (cpu_has_mips32r1 | cpu_has_mips32r2 | cpu_has_mips32r6) |
273 | #define cpu_has_mips64 (cpu_has_mips64r1 | cpu_has_mips64r2 | cpu_has_mips64r6) | |
70342287 RB |
274 | #define cpu_has_mips_r1 (cpu_has_mips32r1 | cpu_has_mips64r1) |
275 | #define cpu_has_mips_r2 (cpu_has_mips32r2 | cpu_has_mips64r2) | |
34c56fc1 | 276 | #define cpu_has_mips_r6 (cpu_has_mips32r6 | cpu_has_mips64r6) |
c46b302b | 277 | #define cpu_has_mips_r (cpu_has_mips32r1 | cpu_has_mips32r2 | \ |
34c56fc1 LY |
278 | cpu_has_mips32r6 | cpu_has_mips64r1 | \ |
279 | cpu_has_mips64r2 | cpu_has_mips64r6) | |
280 | ||
281 | /* MIPSR2 and MIPSR6 have a lot of similarities */ | |
282 | #define cpu_has_mips_r2_r6 (cpu_has_mips_r2 | cpu_has_mips_r6) | |
0401572a | 283 | |
9cdf30bd RB |
284 | /* |
285 | * cpu_has_mips_r2_exec_hazard - return if IHB is required on current processor | |
286 | * | |
287 | * Returns non-zero value if the current processor implementation requires | |
288 | * an IHB instruction to deal with an instruction hazard as per MIPS R2 | |
289 | * architecture specification, zero otherwise. | |
290 | */ | |
41f0e4d0 | 291 | #ifndef cpu_has_mips_r2_exec_hazard |
9cdf30bd RB |
292 | #define cpu_has_mips_r2_exec_hazard \ |
293 | ({ \ | |
294 | int __res; \ | |
295 | \ | |
296 | switch (current_cpu_type()) { \ | |
297 | case CPU_M14KC: \ | |
298 | case CPU_74K: \ | |
299 | case CPU_1074K: \ | |
300 | case CPU_PROAPTIV: \ | |
301 | case CPU_P5600: \ | |
302 | case CPU_M5150: \ | |
303 | case CPU_QEMU_GENERIC: \ | |
304 | case CPU_CAVIUM_OCTEON: \ | |
305 | case CPU_CAVIUM_OCTEON_PLUS: \ | |
306 | case CPU_CAVIUM_OCTEON2: \ | |
307 | case CPU_CAVIUM_OCTEON3: \ | |
308 | __res = 0; \ | |
309 | break; \ | |
310 | \ | |
311 | default: \ | |
312 | __res = 1; \ | |
313 | } \ | |
314 | \ | |
315 | __res; \ | |
316 | }) | |
41f0e4d0 DD |
317 | #endif |
318 | ||
47740eb8 RB |
319 | /* |
320 | * MIPS32, MIPS64, VR5500, IDT32332, IDT32334 and maybe a few other | |
becee6b8 | 321 | * pre-MIPS32/MIPS64 processors have CLO, CLZ. The IDT RC64574 is 64-bit and |
417a5eb0 | 322 | * has CLO and CLZ but not DCLO nor DCLZ. For 64-bit kernels |
47740eb8 RB |
323 | * cpu_has_clo_clz also indicates the availability of DCLO and DCLZ. |
324 | */ | |
fc192e50 TW |
325 | #ifndef cpu_has_clo_clz |
326 | #define cpu_has_clo_clz cpu_has_mips_r | |
327 | #endif | |
47740eb8 | 328 | |
3c09bae4 CJ |
329 | /* |
330 | * MIPS32 R2, MIPS64 R2, Loongson 3A and Octeon have WSBH. | |
331 | * MIPS64 R2, Loongson 3A and Octeon have WSBH, DSBH and DSHD. | |
332 | * This indicates the availability of WSBH and in case of 64 bit CPUs also | |
333 | * DSBH and DSHD. | |
334 | */ | |
335 | #ifndef cpu_has_wsbh | |
336 | #define cpu_has_wsbh cpu_has_mips_r2 | |
337 | #endif | |
338 | ||
e50c0a8f RB |
339 | #ifndef cpu_has_dsp |
340 | #define cpu_has_dsp (cpu_data[0].ases & MIPS_ASE_DSP) | |
341 | #endif | |
342 | ||
ee80f7c7 SH |
343 | #ifndef cpu_has_dsp2 |
344 | #define cpu_has_dsp2 (cpu_data[0].ases & MIPS_ASE_DSP2P) | |
345 | #endif | |
346 | ||
b5a6455c ZLK |
347 | #ifndef cpu_has_dsp3 |
348 | #define cpu_has_dsp3 (cpu_data[0].ases & MIPS_ASE_DSP3) | |
349 | #endif | |
350 | ||
8f40611d | 351 | #ifndef cpu_has_mipsmt |
2e128ded | 352 | #define cpu_has_mipsmt (cpu_data[0].ases & MIPS_ASE_MIPSMT) |
8f40611d RB |
353 | #endif |
354 | ||
f270d881 PB |
355 | #ifndef cpu_has_vp |
356 | #define cpu_has_vp (cpu_data[0].options & MIPS_CPU_VP) | |
357 | #endif | |
358 | ||
a3692020 RB |
359 | #ifndef cpu_has_userlocal |
360 | #define cpu_has_userlocal (cpu_data[0].options & MIPS_CPU_ULRI) | |
361 | #endif | |
362 | ||
875d43e7 | 363 | #ifdef CONFIG_32BIT |
1da177e4 LT |
364 | # ifndef cpu_has_nofpuex |
365 | # define cpu_has_nofpuex (cpu_data[0].options & MIPS_CPU_NOFPUEX) | |
366 | # endif | |
367 | # ifndef cpu_has_64bits | |
368 | # define cpu_has_64bits (cpu_data[0].isa_level & MIPS_CPU_ISA_64BIT) | |
369 | # endif | |
370 | # ifndef cpu_has_64bit_zero_reg | |
fc192e50 | 371 | # define cpu_has_64bit_zero_reg (cpu_data[0].isa_level & MIPS_CPU_ISA_64BIT) |
1da177e4 LT |
372 | # endif |
373 | # ifndef cpu_has_64bit_gp_regs | |
374 | # define cpu_has_64bit_gp_regs 0 | |
375 | # endif | |
376 | # ifndef cpu_has_64bit_addresses | |
377 | # define cpu_has_64bit_addresses 0 | |
378 | # endif | |
91dfc423 GR |
379 | # ifndef cpu_vmbits |
380 | # define cpu_vmbits 31 | |
381 | # endif | |
1da177e4 LT |
382 | #endif |
383 | ||
875d43e7 | 384 | #ifdef CONFIG_64BIT |
1da177e4 LT |
385 | # ifndef cpu_has_nofpuex |
386 | # define cpu_has_nofpuex 0 | |
387 | # endif | |
388 | # ifndef cpu_has_64bits | |
389 | # define cpu_has_64bits 1 | |
390 | # endif | |
391 | # ifndef cpu_has_64bit_zero_reg | |
392 | # define cpu_has_64bit_zero_reg 1 | |
393 | # endif | |
394 | # ifndef cpu_has_64bit_gp_regs | |
395 | # define cpu_has_64bit_gp_regs 1 | |
396 | # endif | |
397 | # ifndef cpu_has_64bit_addresses | |
398 | # define cpu_has_64bit_addresses 1 | |
399 | # endif | |
91dfc423 GR |
400 | # ifndef cpu_vmbits |
401 | # define cpu_vmbits cpu_data[0].vmbits | |
402 | # define __NEED_VMBITS_PROBE | |
403 | # endif | |
1da177e4 LT |
404 | #endif |
405 | ||
f41ae0b2 RB |
406 | #if defined(CONFIG_CPU_MIPSR2_IRQ_VI) && !defined(cpu_has_vint) |
407 | # define cpu_has_vint (cpu_data[0].options & MIPS_CPU_VINT) | |
408 | #elif !defined(cpu_has_vint) | |
8f40611d | 409 | # define cpu_has_vint 0 |
f41ae0b2 RB |
410 | #endif |
411 | ||
412 | #if defined(CONFIG_CPU_MIPSR2_IRQ_EI) && !defined(cpu_has_veic) | |
413 | # define cpu_has_veic (cpu_data[0].options & MIPS_CPU_VEIC) | |
414 | #elif !defined(cpu_has_veic) | |
8f40611d RB |
415 | # define cpu_has_veic 0 |
416 | #endif | |
417 | ||
fc5d2d27 RB |
418 | #ifndef cpu_has_inclusive_pcaches |
419 | #define cpu_has_inclusive_pcaches (cpu_data[0].options & MIPS_CPU_INCLUSIVE_CACHES) | |
1da177e4 LT |
420 | #endif |
421 | ||
422 | #ifndef cpu_dcache_line_size | |
54fd6441 | 423 | #define cpu_dcache_line_size() cpu_data[0].dcache.linesz |
1da177e4 LT |
424 | #endif |
425 | #ifndef cpu_icache_line_size | |
54fd6441 | 426 | #define cpu_icache_line_size() cpu_data[0].icache.linesz |
1da177e4 LT |
427 | #endif |
428 | #ifndef cpu_scache_line_size | |
54fd6441 | 429 | #define cpu_scache_line_size() cpu_data[0].scache.linesz |
1da177e4 | 430 | #endif |
21da5332 MR |
431 | #ifndef cpu_tcache_line_size |
432 | #define cpu_tcache_line_size() cpu_data[0].tcache.linesz | |
433 | #endif | |
1da177e4 | 434 | |
fbeda19f DD |
435 | #ifndef cpu_hwrena_impl_bits |
436 | #define cpu_hwrena_impl_bits 0 | |
437 | #endif | |
438 | ||
da4b62cd AC |
439 | #ifndef cpu_has_perf_cntr_intr_bit |
440 | #define cpu_has_perf_cntr_intr_bit (cpu_data[0].options & MIPS_CPU_PCI) | |
441 | #endif | |
442 | ||
1e7decdb DD |
443 | #ifndef cpu_has_vz |
444 | #define cpu_has_vz (cpu_data[0].ases & MIPS_ASE_VZ) | |
445 | #endif | |
446 | ||
a5e9a69e PB |
447 | #if defined(CONFIG_CPU_HAS_MSA) && !defined(cpu_has_msa) |
448 | # define cpu_has_msa (cpu_data[0].ases & MIPS_ASE_MSA) | |
449 | #elif !defined(cpu_has_msa) | |
450 | # define cpu_has_msa 0 | |
451 | #endif | |
452 | ||
4e87580e JH |
453 | #ifndef cpu_has_ufr |
454 | # define cpu_has_ufr (cpu_data[0].options & MIPS_CPU_UFR) | |
455 | #endif | |
456 | ||
adac5d53 PB |
457 | #ifndef cpu_has_fre |
458 | # define cpu_has_fre (cpu_data[0].options & MIPS_CPU_FRE) | |
459 | #endif | |
460 | ||
9b3274bd JH |
461 | #ifndef cpu_has_cdmm |
462 | # define cpu_has_cdmm (cpu_data[0].options & MIPS_CPU_CDMM) | |
463 | #endif | |
464 | ||
aaa7be48 JH |
465 | #ifndef cpu_has_small_pages |
466 | # define cpu_has_small_pages (cpu_data[0].options & MIPS_CPU_SP) | |
467 | #endif | |
468 | ||
9519ef37 MR |
469 | #ifndef cpu_has_nan_legacy |
470 | #define cpu_has_nan_legacy (cpu_data[0].options & MIPS_CPU_NAN_LEGACY) | |
471 | #endif | |
472 | #ifndef cpu_has_nan_2008 | |
473 | #define cpu_has_nan_2008 (cpu_data[0].options & MIPS_CPU_NAN_2008) | |
474 | #endif | |
475 | ||
37fb60f8 JH |
476 | #ifndef cpu_has_ebase_wg |
477 | # define cpu_has_ebase_wg (cpu_data[0].options & MIPS_CPU_EBASE_WG) | |
478 | #endif | |
479 | ||
e06a1548 JH |
480 | #ifndef cpu_has_badinstr |
481 | # define cpu_has_badinstr (cpu_data[0].options & MIPS_CPU_BADINSTR) | |
482 | #endif | |
483 | ||
484 | #ifndef cpu_has_badinstrp | |
485 | # define cpu_has_badinstrp (cpu_data[0].options & MIPS_CPU_BADINSTRP) | |
486 | #endif | |
487 | ||
f18bdfa1 JH |
488 | #ifndef cpu_has_contextconfig |
489 | # define cpu_has_contextconfig (cpu_data[0].options & MIPS_CPU_CTXTC) | |
490 | #endif | |
491 | ||
30228c40 JH |
492 | #ifndef cpu_has_perf |
493 | # define cpu_has_perf (cpu_data[0].options & MIPS_CPU_PERF) | |
494 | #endif | |
e7bc8557 PB |
495 | |
496 | #if defined(CONFIG_SMP) && defined(__mips_isa_rev) && (__mips_isa_rev >= 6) | |
497 | /* | |
498 | * Some systems share FTLB RAMs between threads within a core (siblings in | |
499 | * kernel parlance). This means that FTLB entries may become invalid at almost | |
500 | * any point when an entry is evicted due to a sibling thread writing an entry | |
501 | * to the shared FTLB RAM. | |
502 | * | |
503 | * This is only relevant to SMP systems, and the only systems that exhibit this | |
504 | * property implement MIPSr6 or higher so we constrain support for this to | |
505 | * kernels that will run on such systems. | |
506 | */ | |
507 | # ifndef cpu_has_shared_ftlb_ram | |
508 | # define cpu_has_shared_ftlb_ram \ | |
509 | (current_cpu_data.options & MIPS_CPU_SHARED_FTLB_RAM) | |
510 | # endif | |
511 | ||
512 | /* | |
513 | * Some systems take this a step further & share FTLB entries between siblings. | |
514 | * This is implemented as TLB writes happening as usual, but if an entry | |
515 | * written by a sibling exists in the shared FTLB for a translation which would | |
516 | * otherwise cause a TLB refill exception then the CPU will use the entry | |
517 | * written by its sibling rather than triggering a refill & writing a matching | |
518 | * TLB entry for itself. | |
519 | * | |
520 | * This is naturally only valid if a TLB entry is known to be suitable for use | |
521 | * on all siblings in a CPU, and so it only takes effect when MMIDs are in use | |
522 | * rather than ASIDs or when a TLB entry is marked global. | |
523 | */ | |
524 | # ifndef cpu_has_shared_ftlb_entries | |
525 | # define cpu_has_shared_ftlb_entries \ | |
526 | (current_cpu_data.options & MIPS_CPU_SHARED_FTLB_ENTRIES) | |
527 | # endif | |
528 | #endif /* SMP && __mips_isa_rev >= 6 */ | |
529 | ||
530 | #ifndef cpu_has_shared_ftlb_ram | |
531 | # define cpu_has_shared_ftlb_ram 0 | |
532 | #endif | |
533 | #ifndef cpu_has_shared_ftlb_entries | |
534 | # define cpu_has_shared_ftlb_entries 0 | |
535 | #endif | |
30228c40 | 536 | |
6ad816e7 JH |
537 | /* |
538 | * Guest capabilities | |
539 | */ | |
540 | #ifndef cpu_guest_has_conf1 | |
541 | #define cpu_guest_has_conf1 (cpu_data[0].guest.conf & (1 << 1)) | |
542 | #endif | |
543 | #ifndef cpu_guest_has_conf2 | |
544 | #define cpu_guest_has_conf2 (cpu_data[0].guest.conf & (1 << 2)) | |
545 | #endif | |
546 | #ifndef cpu_guest_has_conf3 | |
547 | #define cpu_guest_has_conf3 (cpu_data[0].guest.conf & (1 << 3)) | |
548 | #endif | |
549 | #ifndef cpu_guest_has_conf4 | |
550 | #define cpu_guest_has_conf4 (cpu_data[0].guest.conf & (1 << 4)) | |
551 | #endif | |
552 | #ifndef cpu_guest_has_conf5 | |
553 | #define cpu_guest_has_conf5 (cpu_data[0].guest.conf & (1 << 5)) | |
554 | #endif | |
555 | #ifndef cpu_guest_has_conf6 | |
556 | #define cpu_guest_has_conf6 (cpu_data[0].guest.conf & (1 << 6)) | |
557 | #endif | |
558 | #ifndef cpu_guest_has_conf7 | |
559 | #define cpu_guest_has_conf7 (cpu_data[0].guest.conf & (1 << 7)) | |
560 | #endif | |
561 | #ifndef cpu_guest_has_fpu | |
562 | #define cpu_guest_has_fpu (cpu_data[0].guest.options & MIPS_CPU_FPU) | |
563 | #endif | |
564 | #ifndef cpu_guest_has_watch | |
565 | #define cpu_guest_has_watch (cpu_data[0].guest.options & MIPS_CPU_WATCH) | |
566 | #endif | |
567 | #ifndef cpu_guest_has_contextconfig | |
568 | #define cpu_guest_has_contextconfig (cpu_data[0].guest.options & MIPS_CPU_CTXTC) | |
569 | #endif | |
570 | #ifndef cpu_guest_has_segments | |
571 | #define cpu_guest_has_segments (cpu_data[0].guest.options & MIPS_CPU_SEGMENTS) | |
572 | #endif | |
573 | #ifndef cpu_guest_has_badinstr | |
574 | #define cpu_guest_has_badinstr (cpu_data[0].guest.options & MIPS_CPU_BADINSTR) | |
575 | #endif | |
576 | #ifndef cpu_guest_has_badinstrp | |
577 | #define cpu_guest_has_badinstrp (cpu_data[0].guest.options & MIPS_CPU_BADINSTRP) | |
578 | #endif | |
579 | #ifndef cpu_guest_has_htw | |
580 | #define cpu_guest_has_htw (cpu_data[0].guest.options & MIPS_CPU_HTW) | |
581 | #endif | |
a929bdc5 JH |
582 | #ifndef cpu_guest_has_mvh |
583 | #define cpu_guest_has_mvh (cpu_data[0].guest.options & MIPS_CPU_MVH) | |
584 | #endif | |
6ad816e7 JH |
585 | #ifndef cpu_guest_has_msa |
586 | #define cpu_guest_has_msa (cpu_data[0].guest.ases & MIPS_ASE_MSA) | |
587 | #endif | |
588 | #ifndef cpu_guest_has_kscr | |
589 | #define cpu_guest_has_kscr(n) (cpu_data[0].guest.kscratch_mask & (1u << (n))) | |
590 | #endif | |
591 | #ifndef cpu_guest_has_rw_llb | |
592 | #define cpu_guest_has_rw_llb (cpu_has_mips_r6 || (cpu_data[0].guest.options & MIPS_CPU_RW_LLB)) | |
593 | #endif | |
594 | #ifndef cpu_guest_has_perf | |
595 | #define cpu_guest_has_perf (cpu_data[0].guest.options & MIPS_CPU_PERF) | |
596 | #endif | |
597 | #ifndef cpu_guest_has_maar | |
598 | #define cpu_guest_has_maar (cpu_data[0].guest.options & MIPS_CPU_MAAR) | |
599 | #endif | |
a7c7ad6c JH |
600 | #ifndef cpu_guest_has_userlocal |
601 | #define cpu_guest_has_userlocal (cpu_data[0].guest.options & MIPS_CPU_ULRI) | |
602 | #endif | |
6ad816e7 JH |
603 | |
604 | /* | |
605 | * Guest dynamic capabilities | |
606 | */ | |
607 | #ifndef cpu_guest_has_dyn_fpu | |
608 | #define cpu_guest_has_dyn_fpu (cpu_data[0].guest.options_dyn & MIPS_CPU_FPU) | |
609 | #endif | |
610 | #ifndef cpu_guest_has_dyn_watch | |
611 | #define cpu_guest_has_dyn_watch (cpu_data[0].guest.options_dyn & MIPS_CPU_WATCH) | |
612 | #endif | |
613 | #ifndef cpu_guest_has_dyn_contextconfig | |
614 | #define cpu_guest_has_dyn_contextconfig (cpu_data[0].guest.options_dyn & MIPS_CPU_CTXTC) | |
615 | #endif | |
616 | #ifndef cpu_guest_has_dyn_perf | |
617 | #define cpu_guest_has_dyn_perf (cpu_data[0].guest.options_dyn & MIPS_CPU_PERF) | |
618 | #endif | |
619 | #ifndef cpu_guest_has_dyn_msa | |
620 | #define cpu_guest_has_dyn_msa (cpu_data[0].guest.ases_dyn & MIPS_ASE_MSA) | |
621 | #endif | |
622 | #ifndef cpu_guest_has_dyn_maar | |
623 | #define cpu_guest_has_dyn_maar (cpu_data[0].guest.options_dyn & MIPS_CPU_MAAR) | |
624 | #endif | |
625 | ||
1da177e4 | 626 | #endif /* __ASM_CPU_FEATURES_H */ |