blob: 9cdb4e4ce258390d75325ea0dba6562f13332924 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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
Ralf Baechle41943182005-05-05 16:45:59 +00007 * Copyright (C) 2004 Maciej W. Rozycki
Linus Torvalds1da177e2005-04-16 15:20:36 -07008 */
9#ifndef __ASM_CPU_FEATURES_H
10#define __ASM_CPU_FEATURES_H
11
Linus Torvalds1da177e2005-04-16 15:20:36 -070012#include <asm/cpu.h>
13#include <asm/cpu-info.h>
Matt Redfearn18ba2102018-02-26 17:02:43 +000014#include <asm/isa-rev.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070015#include <cpu-feature-overrides.h>
16
17/*
18 * SMP assumption: Options of CPU 0 are a superset of all processors.
19 * This is true for all known MIPS systems.
20 */
21#ifndef cpu_has_tlb
22#define cpu_has_tlb (cpu_data[0].options & MIPS_CPU_TLB)
23#endif
James Hogan2f6f3132015-09-17 17:49:20 +010024#ifndef cpu_has_ftlb
25#define cpu_has_ftlb (cpu_data[0].options & MIPS_CPU_FTLB)
26#endif
Leonid Yegoshin1745c1e2013-11-14 16:12:23 +000027#ifndef cpu_has_tlbinv
28#define cpu_has_tlbinv (cpu_data[0].options & MIPS_CPU_TLBINV)
29#endif
Steven J. Hill4a0156f2013-11-14 16:12:24 +000030#ifndef cpu_has_segments
31#define cpu_has_segments (cpu_data[0].options & MIPS_CPU_SEGMENTS)
32#endif
Markos Chandras7ae66962014-01-09 16:01:29 +000033#ifndef cpu_has_eva
34#define cpu_has_eva (cpu_data[0].options & MIPS_CPU_EVA)
35#endif
Markos Chandrase647e6b2014-07-14 12:43:28 +010036#ifndef cpu_has_htw
37#define cpu_has_htw (cpu_data[0].options & MIPS_CPU_HTW)
38#endif
Huacai Chen380cd582016-03-03 09:45:12 +080039#ifndef cpu_has_ldpte
40#define cpu_has_ldpte (cpu_data[0].options & MIPS_CPU_LDPTE)
41#endif
Leonid Yegoshin6ee729a2014-07-15 14:09:55 +010042#ifndef cpu_has_rixiex
43#define cpu_has_rixiex (cpu_data[0].options & MIPS_CPU_RIXIEX)
44#endif
Paul Burton1f6c52f2014-07-14 10:32:14 +010045#ifndef cpu_has_maar
46#define cpu_has_maar (cpu_data[0].options & MIPS_CPU_MAAR)
47#endif
Markos Chandras5aed9da2014-12-02 09:46:19 +000048#ifndef cpu_has_rw_llb
49#define cpu_has_rw_llb (cpu_data[0].options & MIPS_CPU_RW_LLB)
50#endif
Ralf Baechle1990e542013-06-26 17:06:34 +020051
52/*
53 * For the moment we don't consider R6000 and R8000 so we can assume that
54 * anything that doesn't support R4000-style exceptions and interrupts is
55 * R3000-like. Users should still treat these two macro definitions as
56 * opaque.
57 */
58#ifndef cpu_has_3kex
59#define cpu_has_3kex (!cpu_has_4kex)
60#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -070061#ifndef cpu_has_4kex
62#define cpu_has_4kex (cpu_data[0].options & MIPS_CPU_4KEX)
63#endif
Ralf Baechle02cf2112005-10-01 13:06:32 +010064#ifndef cpu_has_3k_cache
65#define cpu_has_3k_cache (cpu_data[0].options & MIPS_CPU_3K_CACHE)
66#endif
67#define cpu_has_6k_cache 0
68#define cpu_has_8k_cache 0
69#ifndef cpu_has_4k_cache
70#define cpu_has_4k_cache (cpu_data[0].options & MIPS_CPU_4K_CACHE)
71#endif
72#ifndef cpu_has_tx39_cache
73#define cpu_has_tx39_cache (cpu_data[0].options & MIPS_CPU_TX39_CACHE)
74#endif
David Daney47d979e2008-12-11 15:33:27 -080075#ifndef cpu_has_octeon_cache
76#define cpu_has_octeon_cache 0
77#endif
Maciej W. Rozycki18a2c2c2015-04-03 23:26:04 +010078/* Don't override `cpu_has_fpu' to 1 or the "nofpu" option won't work. */
Linus Torvalds1da177e2005-04-16 15:20:36 -070079#ifndef cpu_has_fpu
Ralf Baechlef088fc82006-04-05 09:45:47 +010080#define cpu_has_fpu (current_cpu_data.options & MIPS_CPU_FPU)
Atsushi Nemoto53dc8022007-03-10 01:07:45 +090081#define raw_cpu_has_fpu (raw_current_cpu_data.options & MIPS_CPU_FPU)
82#else
83#define raw_cpu_has_fpu cpu_has_fpu
Linus Torvalds1da177e2005-04-16 15:20:36 -070084#endif
85#ifndef cpu_has_32fpr
86#define cpu_has_32fpr (cpu_data[0].options & MIPS_CPU_32FPR)
87#endif
88#ifndef cpu_has_counter
89#define cpu_has_counter (cpu_data[0].options & MIPS_CPU_COUNTER)
90#endif
91#ifndef cpu_has_watch
92#define cpu_has_watch (cpu_data[0].options & MIPS_CPU_WATCH)
93#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -070094#ifndef cpu_has_divec
95#define cpu_has_divec (cpu_data[0].options & MIPS_CPU_DIVEC)
96#endif
97#ifndef cpu_has_vce
98#define cpu_has_vce (cpu_data[0].options & MIPS_CPU_VCE)
99#endif
100#ifndef cpu_has_cache_cdex_p
101#define cpu_has_cache_cdex_p (cpu_data[0].options & MIPS_CPU_CACHE_CDEX_P)
102#endif
103#ifndef cpu_has_cache_cdex_s
104#define cpu_has_cache_cdex_s (cpu_data[0].options & MIPS_CPU_CACHE_CDEX_S)
105#endif
106#ifndef cpu_has_prefetch
107#define cpu_has_prefetch (cpu_data[0].options & MIPS_CPU_PREFETCH)
108#endif
109#ifndef cpu_has_mcheck
110#define cpu_has_mcheck (cpu_data[0].options & MIPS_CPU_MCHECK)
111#endif
112#ifndef cpu_has_ejtag
113#define cpu_has_ejtag (cpu_data[0].options & MIPS_CPU_EJTAG)
114#endif
115#ifndef cpu_has_llsc
116#define cpu_has_llsc (cpu_data[0].options & MIPS_CPU_LLSC)
117#endif
Joshua Kinard8d5ded12015-06-02 18:21:33 -0400118#ifndef cpu_has_bp_ghist
119#define cpu_has_bp_ghist (cpu_data[0].options & MIPS_CPU_BP_GHIST)
120#endif
David Daneyb791d112009-07-13 11:15:19 -0700121#ifndef kernel_uses_llsc
122#define kernel_uses_llsc cpu_has_llsc
123#endif
James Hogan6ad816e2016-05-11 15:50:30 +0100124#ifndef cpu_has_guestctl0ext
125#define cpu_has_guestctl0ext (cpu_data[0].options & MIPS_CPU_GUESTCTL0EXT)
126#endif
127#ifndef cpu_has_guestctl1
128#define cpu_has_guestctl1 (cpu_data[0].options & MIPS_CPU_GUESTCTL1)
129#endif
130#ifndef cpu_has_guestctl2
131#define cpu_has_guestctl2 (cpu_data[0].options & MIPS_CPU_GUESTCTL2)
132#endif
133#ifndef cpu_has_guestid
134#define cpu_has_guestid (cpu_data[0].options & MIPS_CPU_GUESTID)
135#endif
136#ifndef cpu_has_drg
137#define cpu_has_drg (cpu_data[0].options & MIPS_CPU_DRG)
138#endif
Ralf Baechle41943182005-05-05 16:45:59 +0000139#ifndef cpu_has_mips16
140#define cpu_has_mips16 (cpu_data[0].ases & MIPS_ASE_MIPS16)
141#endif
Maciej W. Rozycki8d1630f2017-05-23 13:37:05 +0100142#ifndef cpu_has_mips16e2
143#define cpu_has_mips16e2 (cpu_data[0].ases & MIPS_ASE_MIPS16E2)
144#endif
Ralf Baechle41943182005-05-05 16:45:59 +0000145#ifndef cpu_has_mdmx
Tony Wufc192e52013-06-21 10:10:46 +0000146#define cpu_has_mdmx (cpu_data[0].ases & MIPS_ASE_MDMX)
Ralf Baechle41943182005-05-05 16:45:59 +0000147#endif
148#ifndef cpu_has_mips3d
Tony Wufc192e52013-06-21 10:10:46 +0000149#define cpu_has_mips3d (cpu_data[0].ases & MIPS_ASE_MIPS3D)
Ralf Baechle41943182005-05-05 16:45:59 +0000150#endif
151#ifndef cpu_has_smartmips
Tony Wufc192e52013-06-21 10:10:46 +0000152#define cpu_has_smartmips (cpu_data[0].ases & MIPS_ASE_SMARTMIPS)
Ralf Baechle41943182005-05-05 16:45:59 +0000153#endif
David Daneya68d09a2014-05-28 23:52:07 +0200154
Steven J. Hillb2ab4f02012-09-13 16:47:58 -0500155#ifndef cpu_has_rixi
Paul Burton033549c2015-09-22 11:42:53 -0700156#define cpu_has_rixi (cpu_data[0].options & MIPS_CPU_RIXI)
Steven J. Hillb2ab4f02012-09-13 16:47:58 -0500157#endif
David Daneya68d09a2014-05-28 23:52:07 +0200158
Steven J. Hillf8fa4812012-12-07 03:51:35 +0000159#ifndef cpu_has_mmips
David Daney3ddc14a2013-05-24 20:54:10 +0000160# ifdef CONFIG_SYS_SUPPORTS_MICROMIPS
161# define cpu_has_mmips (cpu_data[0].options & MIPS_CPU_MICROMIPS)
162# else
163# define cpu_has_mmips 0
164# endif
Steven J. Hillf8fa4812012-12-07 03:51:35 +0000165#endif
David Daneya68d09a2014-05-28 23:52:07 +0200166
James Hogan12822572016-04-19 09:24:59 +0100167#ifndef cpu_has_lpa
168#define cpu_has_lpa (cpu_data[0].options & MIPS_CPU_LPA)
169#endif
170#ifndef cpu_has_mvh
171#define cpu_has_mvh (cpu_data[0].options & MIPS_CPU_MVH)
172#endif
Steven J. Hillc5b36782015-02-26 18:16:38 -0600173#ifndef cpu_has_xpa
James Hogan12822572016-04-19 09:24:59 +0100174#define cpu_has_xpa (cpu_has_lpa && cpu_has_mvh)
Steven J. Hillc5b36782015-02-26 18:16:38 -0600175#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700176#ifndef cpu_has_vtag_icache
177#define cpu_has_vtag_icache (cpu_data[0].icache.flags & MIPS_CACHE_VTAG)
178#endif
179#ifndef cpu_has_dc_aliases
180#define cpu_has_dc_aliases (cpu_data[0].dcache.flags & MIPS_CACHE_ALIASES)
181#endif
182#ifndef cpu_has_ic_fills_f_dc
183#define cpu_has_ic_fills_f_dc (cpu_data[0].icache.flags & MIPS_CACHE_IC_F_DC)
184#endif
Atsushi Nemotode628932006-03-13 18:23:03 +0900185#ifndef cpu_has_pindexed_dcache
Tony Wufc192e52013-06-21 10:10:46 +0000186#define cpu_has_pindexed_dcache (cpu_data[0].dcache.flags & MIPS_CACHE_PINDEX)
Atsushi Nemotode628932006-03-13 18:23:03 +0900187#endif
Huacai Chen87599342013-03-17 11:49:38 +0000188#ifndef cpu_has_local_ebase
189#define cpu_has_local_ebase 1
190#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700191
192/*
Ralf Baechle70342282013-01-22 12:59:30 +0100193 * I-Cache snoops remote store. This only matters on SMP. Some multiprocessors
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194 * such as the R10000 have I-Caches that snoop local stores; the embedded ones
195 * don't. For maintaining I-cache coherency this means we need to flush the
196 * D-cache all the way back to whever the I-cache does refills from, so the
197 * I-cache has a chance to see the new data at all. Then we have to flush the
198 * I-cache also.
199 * Note we may have been rescheduled and may no longer be running on the CPU
200 * that did the store so we can't optimize this into only doing the flush on
201 * the local CPU.
202 */
203#ifndef cpu_icache_snoops_remote_store
204#ifdef CONFIG_SMP
205#define cpu_icache_snoops_remote_store (cpu_data[0].icache.flags & MIPS_IC_SNOOPS_REMOTE)
206#else
207#define cpu_icache_snoops_remote_store 1
208#endif
209#endif
210
Zhaoxiu Zengfff7fb02016-05-20 17:03:57 -0700211/* __builtin_constant_p(cpu_has_mips_r) && cpu_has_mips_r */
212#if !((defined(cpu_has_mips32r1) && cpu_has_mips32r1) || \
213 (defined(cpu_has_mips32r2) && cpu_has_mips32r2) || \
214 (defined(cpu_has_mips32r6) && cpu_has_mips32r6) || \
215 (defined(cpu_has_mips64r1) && cpu_has_mips64r1) || \
216 (defined(cpu_has_mips64r2) && cpu_has_mips64r2) || \
217 (defined(cpu_has_mips64r6) && cpu_has_mips64r6))
218#define CPU_NO_EFFICIENT_FFS 1
219#endif
220
Markos Chandras515a6392014-11-14 10:10:02 +0000221#ifndef cpu_has_mips_1
222# define cpu_has_mips_1 (!cpu_has_mips_r6)
223#endif
Steven J. Hilla96102b2012-12-07 04:31:36 +0000224#ifndef cpu_has_mips_2
225# define cpu_has_mips_2 (cpu_data[0].isa_level & MIPS_CPU_ISA_II)
226#endif
227#ifndef cpu_has_mips_3
228# define cpu_has_mips_3 (cpu_data[0].isa_level & MIPS_CPU_ISA_III)
229#endif
230#ifndef cpu_has_mips_4
231# define cpu_has_mips_4 (cpu_data[0].isa_level & MIPS_CPU_ISA_IV)
232#endif
233#ifndef cpu_has_mips_5
234# define cpu_has_mips_5 (cpu_data[0].isa_level & MIPS_CPU_ISA_V)
235#endif
Tony Wufc192e52013-06-21 10:10:46 +0000236#ifndef cpu_has_mips32r1
Ralf Baechle04015722005-12-09 12:20:49 +0000237# define cpu_has_mips32r1 (cpu_data[0].isa_level & MIPS_CPU_ISA_M32R1)
Tony Wufc192e52013-06-21 10:10:46 +0000238#endif
239#ifndef cpu_has_mips32r2
Ralf Baechle04015722005-12-09 12:20:49 +0000240# define cpu_has_mips32r2 (cpu_data[0].isa_level & MIPS_CPU_ISA_M32R2)
Tony Wufc192e52013-06-21 10:10:46 +0000241#endif
Leonid Yegoshin34c56fc2014-11-13 11:49:21 +0000242#ifndef cpu_has_mips32r6
243# define cpu_has_mips32r6 (cpu_data[0].isa_level & MIPS_CPU_ISA_M32R6)
244#endif
Tony Wufc192e52013-06-21 10:10:46 +0000245#ifndef cpu_has_mips64r1
Ralf Baechle04015722005-12-09 12:20:49 +0000246# define cpu_has_mips64r1 (cpu_data[0].isa_level & MIPS_CPU_ISA_M64R1)
Tony Wufc192e52013-06-21 10:10:46 +0000247#endif
248#ifndef cpu_has_mips64r2
Ralf Baechle04015722005-12-09 12:20:49 +0000249# define cpu_has_mips64r2 (cpu_data[0].isa_level & MIPS_CPU_ISA_M64R2)
Tony Wufc192e52013-06-21 10:10:46 +0000250#endif
Leonid Yegoshin34c56fc2014-11-13 11:49:21 +0000251#ifndef cpu_has_mips64r6
252# define cpu_has_mips64r6 (cpu_data[0].isa_level & MIPS_CPU_ISA_M64R6)
253#endif
Ralf Baechle04015722005-12-09 12:20:49 +0000254
255/*
256 * Shortcuts ...
257 */
Ralf Baechle08a07902014-04-19 13:11:37 +0200258#define cpu_has_mips_2_3_4_5 (cpu_has_mips_2 | cpu_has_mips_3_4_5)
259#define cpu_has_mips_3_4_5 (cpu_has_mips_3 | cpu_has_mips_4_5)
260#define cpu_has_mips_4_5 (cpu_has_mips_4 | cpu_has_mips_5)
261
262#define cpu_has_mips_2_3_4_5_r (cpu_has_mips_2 | cpu_has_mips_3_4_5_r)
263#define cpu_has_mips_3_4_5_r (cpu_has_mips_3 | cpu_has_mips_4_5_r)
264#define cpu_has_mips_4_5_r (cpu_has_mips_4 | cpu_has_mips_5_r)
265#define cpu_has_mips_5_r (cpu_has_mips_5 | cpu_has_mips_r)
266
Maciej W. Rozycki2d83fea2015-04-03 23:26:49 +0100267#define cpu_has_mips_3_4_5_64_r2_r6 \
268 (cpu_has_mips_3 | cpu_has_mips_4_5_64_r2_r6)
269#define cpu_has_mips_4_5_64_r2_r6 \
270 (cpu_has_mips_4_5 | cpu_has_mips64r1 | \
271 cpu_has_mips_r2 | cpu_has_mips_r6)
Ralf Baechle08a07902014-04-19 13:11:37 +0200272
Leonid Yegoshin34c56fc2014-11-13 11:49:21 +0000273#define cpu_has_mips32 (cpu_has_mips32r1 | cpu_has_mips32r2 | cpu_has_mips32r6)
274#define cpu_has_mips64 (cpu_has_mips64r1 | cpu_has_mips64r2 | cpu_has_mips64r6)
Ralf Baechle70342282013-01-22 12:59:30 +0100275#define cpu_has_mips_r1 (cpu_has_mips32r1 | cpu_has_mips64r1)
276#define cpu_has_mips_r2 (cpu_has_mips32r2 | cpu_has_mips64r2)
Leonid Yegoshin34c56fc2014-11-13 11:49:21 +0000277#define cpu_has_mips_r6 (cpu_has_mips32r6 | cpu_has_mips64r6)
Ralf Baechlec46b3022008-10-28 09:37:47 +0000278#define cpu_has_mips_r (cpu_has_mips32r1 | cpu_has_mips32r2 | \
Leonid Yegoshin34c56fc2014-11-13 11:49:21 +0000279 cpu_has_mips32r6 | cpu_has_mips64r1 | \
280 cpu_has_mips64r2 | cpu_has_mips64r6)
281
282/* MIPSR2 and MIPSR6 have a lot of similarities */
283#define cpu_has_mips_r2_r6 (cpu_has_mips_r2 | cpu_has_mips_r6)
Ralf Baechle04015722005-12-09 12:20:49 +0000284
Ralf Baechle9cdf30b2015-03-25 13:14:16 +0100285/*
286 * cpu_has_mips_r2_exec_hazard - return if IHB is required on current processor
287 *
288 * Returns non-zero value if the current processor implementation requires
289 * an IHB instruction to deal with an instruction hazard as per MIPS R2
290 * architecture specification, zero otherwise.
291 */
David Daney41f0e4d2009-05-12 12:41:53 -0700292#ifndef cpu_has_mips_r2_exec_hazard
Ralf Baechle9cdf30b2015-03-25 13:14:16 +0100293#define cpu_has_mips_r2_exec_hazard \
294({ \
295 int __res; \
296 \
297 switch (current_cpu_type()) { \
298 case CPU_M14KC: \
299 case CPU_74K: \
300 case CPU_1074K: \
301 case CPU_PROAPTIV: \
302 case CPU_P5600: \
303 case CPU_M5150: \
304 case CPU_QEMU_GENERIC: \
305 case CPU_CAVIUM_OCTEON: \
306 case CPU_CAVIUM_OCTEON_PLUS: \
307 case CPU_CAVIUM_OCTEON2: \
308 case CPU_CAVIUM_OCTEON3: \
309 __res = 0; \
310 break; \
311 \
312 default: \
313 __res = 1; \
314 } \
315 \
316 __res; \
317})
David Daney41f0e4d2009-05-12 12:41:53 -0700318#endif
319
Ralf Baechle47740eb2009-04-19 03:21:22 +0200320/*
321 * MIPS32, MIPS64, VR5500, IDT32332, IDT32334 and maybe a few other
Maciej W. Rozyckibecee6b82013-09-22 22:04:27 +0100322 * pre-MIPS32/MIPS64 processors have CLO, CLZ. The IDT RC64574 is 64-bit and
Ralf Baechle417a5eb2010-08-05 13:26:01 +0100323 * has CLO and CLZ but not DCLO nor DCLZ. For 64-bit kernels
Ralf Baechle47740eb2009-04-19 03:21:22 +0200324 * cpu_has_clo_clz also indicates the availability of DCLO and DCLZ.
325 */
Tony Wufc192e52013-06-21 10:10:46 +0000326#ifndef cpu_has_clo_clz
327#define cpu_has_clo_clz cpu_has_mips_r
328#endif
Ralf Baechle47740eb2009-04-19 03:21:22 +0200329
Chen Jie3c09bae2014-08-15 16:56:58 +0800330/*
331 * MIPS32 R2, MIPS64 R2, Loongson 3A and Octeon have WSBH.
332 * MIPS64 R2, Loongson 3A and Octeon have WSBH, DSBH and DSHD.
333 * This indicates the availability of WSBH and in case of 64 bit CPUs also
334 * DSBH and DSHD.
335 */
336#ifndef cpu_has_wsbh
337#define cpu_has_wsbh cpu_has_mips_r2
338#endif
339
Ralf Baechlee50c0a82005-05-31 11:49:19 +0000340#ifndef cpu_has_dsp
341#define cpu_has_dsp (cpu_data[0].ases & MIPS_ASE_DSP)
342#endif
343
Steven J. Hillee80f7c72012-08-03 10:26:04 -0500344#ifndef cpu_has_dsp2
345#define cpu_has_dsp2 (cpu_data[0].ases & MIPS_ASE_DSP2P)
346#endif
347
Zubair Lutfullah Kakakhelb5a64552016-03-29 15:50:25 +0100348#ifndef cpu_has_dsp3
349#define cpu_has_dsp3 (cpu_data[0].ases & MIPS_ASE_DSP3)
350#endif
351
Ralf Baechle8f406112005-07-14 07:34:18 +0000352#ifndef cpu_has_mipsmt
Chris Dearman2e128de2006-06-30 12:32:37 +0100353#define cpu_has_mipsmt (cpu_data[0].ases & MIPS_ASE_MIPSMT)
Ralf Baechle8f406112005-07-14 07:34:18 +0000354#endif
355
Paul Burtonf270d882016-02-03 03:15:21 +0000356#ifndef cpu_has_vp
357#define cpu_has_vp (cpu_data[0].options & MIPS_CPU_VP)
358#endif
359
Ralf Baechlea3692022007-07-10 17:33:02 +0100360#ifndef cpu_has_userlocal
361#define cpu_has_userlocal (cpu_data[0].options & MIPS_CPU_ULRI)
362#endif
363
Ralf Baechle875d43e2005-09-03 15:56:16 -0700364#ifdef CONFIG_32BIT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700365# ifndef cpu_has_nofpuex
366# define cpu_has_nofpuex (cpu_data[0].options & MIPS_CPU_NOFPUEX)
367# endif
368# ifndef cpu_has_64bits
369# define cpu_has_64bits (cpu_data[0].isa_level & MIPS_CPU_ISA_64BIT)
370# endif
371# ifndef cpu_has_64bit_zero_reg
Tony Wufc192e52013-06-21 10:10:46 +0000372# define cpu_has_64bit_zero_reg (cpu_data[0].isa_level & MIPS_CPU_ISA_64BIT)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700373# endif
374# ifndef cpu_has_64bit_gp_regs
375# define cpu_has_64bit_gp_regs 0
376# endif
377# ifndef cpu_has_64bit_addresses
378# define cpu_has_64bit_addresses 0
379# endif
Guenter Roeck91dfc422010-02-02 08:52:20 -0800380# ifndef cpu_vmbits
381# define cpu_vmbits 31
382# endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700383#endif
384
Ralf Baechle875d43e2005-09-03 15:56:16 -0700385#ifdef CONFIG_64BIT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700386# ifndef cpu_has_nofpuex
387# define cpu_has_nofpuex 0
388# endif
389# ifndef cpu_has_64bits
390# define cpu_has_64bits 1
391# endif
392# ifndef cpu_has_64bit_zero_reg
393# define cpu_has_64bit_zero_reg 1
394# endif
395# ifndef cpu_has_64bit_gp_regs
396# define cpu_has_64bit_gp_regs 1
397# endif
398# ifndef cpu_has_64bit_addresses
399# define cpu_has_64bit_addresses 1
400# endif
Guenter Roeck91dfc422010-02-02 08:52:20 -0800401# ifndef cpu_vmbits
402# define cpu_vmbits cpu_data[0].vmbits
403# define __NEED_VMBITS_PROBE
404# endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700405#endif
406
Ralf Baechlef41ae0b2006-06-05 17:24:46 +0100407#if defined(CONFIG_CPU_MIPSR2_IRQ_VI) && !defined(cpu_has_vint)
408# define cpu_has_vint (cpu_data[0].options & MIPS_CPU_VINT)
409#elif !defined(cpu_has_vint)
Ralf Baechle8f406112005-07-14 07:34:18 +0000410# define cpu_has_vint 0
Ralf Baechlef41ae0b2006-06-05 17:24:46 +0100411#endif
412
413#if defined(CONFIG_CPU_MIPSR2_IRQ_EI) && !defined(cpu_has_veic)
414# define cpu_has_veic (cpu_data[0].options & MIPS_CPU_VEIC)
415#elif !defined(cpu_has_veic)
Ralf Baechle8f406112005-07-14 07:34:18 +0000416# define cpu_has_veic 0
417#endif
418
Ralf Baechlefc5d2d22006-07-06 13:04:01 +0100419#ifndef cpu_has_inclusive_pcaches
420#define cpu_has_inclusive_pcaches (cpu_data[0].options & MIPS_CPU_INCLUSIVE_CACHES)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700421#endif
422
423#ifndef cpu_dcache_line_size
Pavel Kiryukhin54fd6442007-11-27 19:20:47 +0300424#define cpu_dcache_line_size() cpu_data[0].dcache.linesz
Linus Torvalds1da177e2005-04-16 15:20:36 -0700425#endif
426#ifndef cpu_icache_line_size
Pavel Kiryukhin54fd6442007-11-27 19:20:47 +0300427#define cpu_icache_line_size() cpu_data[0].icache.linesz
Linus Torvalds1da177e2005-04-16 15:20:36 -0700428#endif
429#ifndef cpu_scache_line_size
Pavel Kiryukhin54fd6442007-11-27 19:20:47 +0300430#define cpu_scache_line_size() cpu_data[0].scache.linesz
Linus Torvalds1da177e2005-04-16 15:20:36 -0700431#endif
Matt Redfearn21da5332017-07-26 08:41:08 +0100432#ifndef cpu_tcache_line_size
433#define cpu_tcache_line_size() cpu_data[0].tcache.linesz
434#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700435
David Daneyfbeda192009-05-13 15:59:55 -0700436#ifndef cpu_hwrena_impl_bits
437#define cpu_hwrena_impl_bits 0
438#endif
439
Al Cooperda4b62c2012-07-13 16:44:51 -0400440#ifndef cpu_has_perf_cntr_intr_bit
441#define cpu_has_perf_cntr_intr_bit (cpu_data[0].options & MIPS_CPU_PCI)
442#endif
443
David Daney1e7decd2013-02-16 23:42:43 +0100444#ifndef cpu_has_vz
445#define cpu_has_vz (cpu_data[0].ases & MIPS_ASE_VZ)
446#endif
447
Paul Burtona5e9a692014-01-27 15:23:10 +0000448#if defined(CONFIG_CPU_HAS_MSA) && !defined(cpu_has_msa)
449# define cpu_has_msa (cpu_data[0].ases & MIPS_ASE_MSA)
450#elif !defined(cpu_has_msa)
451# define cpu_has_msa 0
452#endif
453
James Hogan4e875802017-03-14 10:15:08 +0000454#ifndef cpu_has_ufr
455# define cpu_has_ufr (cpu_data[0].options & MIPS_CPU_UFR)
456#endif
457
Paul Burtonadac5d52014-09-11 08:30:18 +0100458#ifndef cpu_has_fre
459# define cpu_has_fre (cpu_data[0].options & MIPS_CPU_FRE)
460#endif
461
James Hogan9b3274b2015-02-02 11:45:08 +0000462#ifndef cpu_has_cdmm
463# define cpu_has_cdmm (cpu_data[0].options & MIPS_CPU_CDMM)
464#endif
465
James Hoganaaa7be42015-07-15 16:17:44 +0100466#ifndef cpu_has_small_pages
467# define cpu_has_small_pages (cpu_data[0].options & MIPS_CPU_SP)
468#endif
469
Maciej W. Rozycki9519ef32015-11-13 00:46:55 +0000470#ifndef cpu_has_nan_legacy
471#define cpu_has_nan_legacy (cpu_data[0].options & MIPS_CPU_NAN_LEGACY)
472#endif
473#ifndef cpu_has_nan_2008
474#define cpu_has_nan_2008 (cpu_data[0].options & MIPS_CPU_NAN_2008)
475#endif
476
James Hogan37fb60f2016-05-11 13:50:50 +0100477#ifndef cpu_has_ebase_wg
478# define cpu_has_ebase_wg (cpu_data[0].options & MIPS_CPU_EBASE_WG)
479#endif
480
James Hogane06a1542016-05-11 13:50:51 +0100481#ifndef cpu_has_badinstr
482# define cpu_has_badinstr (cpu_data[0].options & MIPS_CPU_BADINSTR)
483#endif
484
485#ifndef cpu_has_badinstrp
486# define cpu_has_badinstrp (cpu_data[0].options & MIPS_CPU_BADINSTRP)
487#endif
488
James Hoganf18bdfa2016-05-11 13:50:52 +0100489#ifndef cpu_has_contextconfig
490# define cpu_has_contextconfig (cpu_data[0].options & MIPS_CPU_CTXTC)
491#endif
492
James Hogan30228c42016-05-11 13:50:53 +0100493#ifndef cpu_has_perf
494# define cpu_has_perf (cpu_data[0].options & MIPS_CPU_PERF)
495#endif
496
Matt Redfearn18ba2102018-02-26 17:02:43 +0000497#if defined(CONFIG_SMP) && (MIPS_ISA_REV >= 6)
Paul Burtone7bc8552017-06-02 15:38:01 -0700498/*
499 * Some systems share FTLB RAMs between threads within a core (siblings in
500 * kernel parlance). This means that FTLB entries may become invalid at almost
501 * any point when an entry is evicted due to a sibling thread writing an entry
502 * to the shared FTLB RAM.
503 *
504 * This is only relevant to SMP systems, and the only systems that exhibit this
505 * property implement MIPSr6 or higher so we constrain support for this to
506 * kernels that will run on such systems.
507 */
508# ifndef cpu_has_shared_ftlb_ram
509# define cpu_has_shared_ftlb_ram \
510 (current_cpu_data.options & MIPS_CPU_SHARED_FTLB_RAM)
511# endif
512
513/*
514 * Some systems take this a step further & share FTLB entries between siblings.
515 * This is implemented as TLB writes happening as usual, but if an entry
516 * written by a sibling exists in the shared FTLB for a translation which would
517 * otherwise cause a TLB refill exception then the CPU will use the entry
518 * written by its sibling rather than triggering a refill & writing a matching
519 * TLB entry for itself.
520 *
521 * This is naturally only valid if a TLB entry is known to be suitable for use
522 * on all siblings in a CPU, and so it only takes effect when MMIDs are in use
523 * rather than ASIDs or when a TLB entry is marked global.
524 */
525# ifndef cpu_has_shared_ftlb_entries
526# define cpu_has_shared_ftlb_entries \
527 (current_cpu_data.options & MIPS_CPU_SHARED_FTLB_ENTRIES)
528# endif
Matt Redfearn18ba2102018-02-26 17:02:43 +0000529#endif /* SMP && MIPS_ISA_REV >= 6 */
Paul Burtone7bc8552017-06-02 15:38:01 -0700530
531#ifndef cpu_has_shared_ftlb_ram
532# define cpu_has_shared_ftlb_ram 0
533#endif
534#ifndef cpu_has_shared_ftlb_entries
535# define cpu_has_shared_ftlb_entries 0
536#endif
537
Matt Redfearn800fb712018-04-20 11:23:04 +0100538#ifdef CONFIG_MIPS_MT_SMP
539# define cpu_has_mipsmt_pertccounters \
540 (cpu_data[0].options & MIPS_CPU_MT_PER_TC_PERF_COUNTERS)
541#else
542# define cpu_has_mipsmt_pertccounters 0
543#endif /* CONFIG_MIPS_MT_SMP */
544
James Hogan6ad816e2016-05-11 15:50:30 +0100545/*
546 * Guest capabilities
547 */
548#ifndef cpu_guest_has_conf1
549#define cpu_guest_has_conf1 (cpu_data[0].guest.conf & (1 << 1))
550#endif
551#ifndef cpu_guest_has_conf2
552#define cpu_guest_has_conf2 (cpu_data[0].guest.conf & (1 << 2))
553#endif
554#ifndef cpu_guest_has_conf3
555#define cpu_guest_has_conf3 (cpu_data[0].guest.conf & (1 << 3))
556#endif
557#ifndef cpu_guest_has_conf4
558#define cpu_guest_has_conf4 (cpu_data[0].guest.conf & (1 << 4))
559#endif
560#ifndef cpu_guest_has_conf5
561#define cpu_guest_has_conf5 (cpu_data[0].guest.conf & (1 << 5))
562#endif
563#ifndef cpu_guest_has_conf6
564#define cpu_guest_has_conf6 (cpu_data[0].guest.conf & (1 << 6))
565#endif
566#ifndef cpu_guest_has_conf7
567#define cpu_guest_has_conf7 (cpu_data[0].guest.conf & (1 << 7))
568#endif
569#ifndef cpu_guest_has_fpu
570#define cpu_guest_has_fpu (cpu_data[0].guest.options & MIPS_CPU_FPU)
571#endif
572#ifndef cpu_guest_has_watch
573#define cpu_guest_has_watch (cpu_data[0].guest.options & MIPS_CPU_WATCH)
574#endif
575#ifndef cpu_guest_has_contextconfig
576#define cpu_guest_has_contextconfig (cpu_data[0].guest.options & MIPS_CPU_CTXTC)
577#endif
578#ifndef cpu_guest_has_segments
579#define cpu_guest_has_segments (cpu_data[0].guest.options & MIPS_CPU_SEGMENTS)
580#endif
581#ifndef cpu_guest_has_badinstr
582#define cpu_guest_has_badinstr (cpu_data[0].guest.options & MIPS_CPU_BADINSTR)
583#endif
584#ifndef cpu_guest_has_badinstrp
585#define cpu_guest_has_badinstrp (cpu_data[0].guest.options & MIPS_CPU_BADINSTRP)
586#endif
587#ifndef cpu_guest_has_htw
588#define cpu_guest_has_htw (cpu_data[0].guest.options & MIPS_CPU_HTW)
589#endif
James Hogana929bdc2017-03-14 10:15:11 +0000590#ifndef cpu_guest_has_mvh
591#define cpu_guest_has_mvh (cpu_data[0].guest.options & MIPS_CPU_MVH)
592#endif
James Hogan6ad816e2016-05-11 15:50:30 +0100593#ifndef cpu_guest_has_msa
594#define cpu_guest_has_msa (cpu_data[0].guest.ases & MIPS_ASE_MSA)
595#endif
596#ifndef cpu_guest_has_kscr
597#define cpu_guest_has_kscr(n) (cpu_data[0].guest.kscratch_mask & (1u << (n)))
598#endif
599#ifndef cpu_guest_has_rw_llb
600#define cpu_guest_has_rw_llb (cpu_has_mips_r6 || (cpu_data[0].guest.options & MIPS_CPU_RW_LLB))
601#endif
602#ifndef cpu_guest_has_perf
603#define cpu_guest_has_perf (cpu_data[0].guest.options & MIPS_CPU_PERF)
604#endif
605#ifndef cpu_guest_has_maar
606#define cpu_guest_has_maar (cpu_data[0].guest.options & MIPS_CPU_MAAR)
607#endif
James Hogana7c7ad62017-03-14 10:15:10 +0000608#ifndef cpu_guest_has_userlocal
609#define cpu_guest_has_userlocal (cpu_data[0].guest.options & MIPS_CPU_ULRI)
610#endif
James Hogan6ad816e2016-05-11 15:50:30 +0100611
612/*
613 * Guest dynamic capabilities
614 */
615#ifndef cpu_guest_has_dyn_fpu
616#define cpu_guest_has_dyn_fpu (cpu_data[0].guest.options_dyn & MIPS_CPU_FPU)
617#endif
618#ifndef cpu_guest_has_dyn_watch
619#define cpu_guest_has_dyn_watch (cpu_data[0].guest.options_dyn & MIPS_CPU_WATCH)
620#endif
621#ifndef cpu_guest_has_dyn_contextconfig
622#define cpu_guest_has_dyn_contextconfig (cpu_data[0].guest.options_dyn & MIPS_CPU_CTXTC)
623#endif
624#ifndef cpu_guest_has_dyn_perf
625#define cpu_guest_has_dyn_perf (cpu_data[0].guest.options_dyn & MIPS_CPU_PERF)
626#endif
627#ifndef cpu_guest_has_dyn_msa
628#define cpu_guest_has_dyn_msa (cpu_data[0].guest.ases_dyn & MIPS_ASE_MSA)
629#endif
630#ifndef cpu_guest_has_dyn_maar
631#define cpu_guest_has_dyn_maar (cpu_data[0].guest.options_dyn & MIPS_CPU_MAAR)
632#endif
633
Linus Torvalds1da177e2005-04-16 15:20:36 -0700634#endif /* __ASM_CPU_FEATURES_H */