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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 | |
13 | #include <asm/cpu.h> | |
14 | #include <asm/cpu-info.h> | |
15 | #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 | |
24 | #ifndef cpu_has_4kex | |
25 | #define cpu_has_4kex (cpu_data[0].options & MIPS_CPU_4KEX) | |
26 | #endif | |
02cf2119 RB |
27 | #ifndef cpu_has_3k_cache |
28 | #define cpu_has_3k_cache (cpu_data[0].options & MIPS_CPU_3K_CACHE) | |
29 | #endif | |
30 | #define cpu_has_6k_cache 0 | |
31 | #define cpu_has_8k_cache 0 | |
32 | #ifndef cpu_has_4k_cache | |
33 | #define cpu_has_4k_cache (cpu_data[0].options & MIPS_CPU_4K_CACHE) | |
34 | #endif | |
35 | #ifndef cpu_has_tx39_cache | |
36 | #define cpu_has_tx39_cache (cpu_data[0].options & MIPS_CPU_TX39_CACHE) | |
37 | #endif | |
38 | #ifndef cpu_has_sb1_cache | |
39 | #define cpu_has_sb1_cache (cpu_data[0].options & MIPS_CPU_SB1_CACHE) | |
1da177e4 LT |
40 | #endif |
41 | #ifndef cpu_has_fpu | |
f088fc84 | 42 | #define cpu_has_fpu (current_cpu_data.options & MIPS_CPU_FPU) |
1da177e4 LT |
43 | #endif |
44 | #ifndef cpu_has_32fpr | |
45 | #define cpu_has_32fpr (cpu_data[0].options & MIPS_CPU_32FPR) | |
46 | #endif | |
47 | #ifndef cpu_has_counter | |
48 | #define cpu_has_counter (cpu_data[0].options & MIPS_CPU_COUNTER) | |
49 | #endif | |
50 | #ifndef cpu_has_watch | |
51 | #define cpu_has_watch (cpu_data[0].options & MIPS_CPU_WATCH) | |
52 | #endif | |
1da177e4 LT |
53 | #ifndef cpu_has_divec |
54 | #define cpu_has_divec (cpu_data[0].options & MIPS_CPU_DIVEC) | |
55 | #endif | |
56 | #ifndef cpu_has_vce | |
57 | #define cpu_has_vce (cpu_data[0].options & MIPS_CPU_VCE) | |
58 | #endif | |
59 | #ifndef cpu_has_cache_cdex_p | |
60 | #define cpu_has_cache_cdex_p (cpu_data[0].options & MIPS_CPU_CACHE_CDEX_P) | |
61 | #endif | |
62 | #ifndef cpu_has_cache_cdex_s | |
63 | #define cpu_has_cache_cdex_s (cpu_data[0].options & MIPS_CPU_CACHE_CDEX_S) | |
64 | #endif | |
65 | #ifndef cpu_has_prefetch | |
66 | #define cpu_has_prefetch (cpu_data[0].options & MIPS_CPU_PREFETCH) | |
67 | #endif | |
68 | #ifndef cpu_has_mcheck | |
69 | #define cpu_has_mcheck (cpu_data[0].options & MIPS_CPU_MCHECK) | |
70 | #endif | |
71 | #ifndef cpu_has_ejtag | |
72 | #define cpu_has_ejtag (cpu_data[0].options & MIPS_CPU_EJTAG) | |
73 | #endif | |
74 | #ifndef cpu_has_llsc | |
75 | #define cpu_has_llsc (cpu_data[0].options & MIPS_CPU_LLSC) | |
76 | #endif | |
4194318c RB |
77 | #ifndef cpu_has_mips16 |
78 | #define cpu_has_mips16 (cpu_data[0].ases & MIPS_ASE_MIPS16) | |
79 | #endif | |
80 | #ifndef cpu_has_mdmx | |
81 | #define cpu_has_mdmx (cpu_data[0].ases & MIPS_ASE_MDMX) | |
82 | #endif | |
83 | #ifndef cpu_has_mips3d | |
84 | #define cpu_has_mips3d (cpu_data[0].ases & MIPS_ASE_MIPS3D) | |
85 | #endif | |
86 | #ifndef cpu_has_smartmips | |
87 | #define cpu_has_smartmips (cpu_data[0].ases & MIPS_ASE_SMARTMIPS) | |
88 | #endif | |
1da177e4 LT |
89 | #ifndef cpu_has_vtag_icache |
90 | #define cpu_has_vtag_icache (cpu_data[0].icache.flags & MIPS_CACHE_VTAG) | |
91 | #endif | |
92 | #ifndef cpu_has_dc_aliases | |
93 | #define cpu_has_dc_aliases (cpu_data[0].dcache.flags & MIPS_CACHE_ALIASES) | |
94 | #endif | |
95 | #ifndef cpu_has_ic_fills_f_dc | |
96 | #define cpu_has_ic_fills_f_dc (cpu_data[0].icache.flags & MIPS_CACHE_IC_F_DC) | |
97 | #endif | |
de62893b AN |
98 | #ifndef cpu_has_pindexed_dcache |
99 | #define cpu_has_pindexed_dcache (cpu_data[0].dcache.flags & MIPS_CACHE_PINDEX) | |
100 | #endif | |
1da177e4 LT |
101 | |
102 | /* | |
103 | * I-Cache snoops remote store. This only matters on SMP. Some multiprocessors | |
104 | * such as the R10000 have I-Caches that snoop local stores; the embedded ones | |
105 | * don't. For maintaining I-cache coherency this means we need to flush the | |
106 | * D-cache all the way back to whever the I-cache does refills from, so the | |
107 | * I-cache has a chance to see the new data at all. Then we have to flush the | |
108 | * I-cache also. | |
109 | * Note we may have been rescheduled and may no longer be running on the CPU | |
110 | * that did the store so we can't optimize this into only doing the flush on | |
111 | * the local CPU. | |
112 | */ | |
113 | #ifndef cpu_icache_snoops_remote_store | |
114 | #ifdef CONFIG_SMP | |
115 | #define cpu_icache_snoops_remote_store (cpu_data[0].icache.flags & MIPS_IC_SNOOPS_REMOTE) | |
116 | #else | |
117 | #define cpu_icache_snoops_remote_store 1 | |
118 | #endif | |
119 | #endif | |
120 | ||
0401572a RB |
121 | # ifndef cpu_has_mips32r1 |
122 | # define cpu_has_mips32r1 (cpu_data[0].isa_level & MIPS_CPU_ISA_M32R1) | |
123 | # endif | |
124 | # ifndef cpu_has_mips32r2 | |
125 | # define cpu_has_mips32r2 (cpu_data[0].isa_level & MIPS_CPU_ISA_M32R2) | |
126 | # endif | |
127 | # ifndef cpu_has_mips64r1 | |
128 | # define cpu_has_mips64r1 (cpu_data[0].isa_level & MIPS_CPU_ISA_M64R1) | |
129 | # endif | |
130 | # ifndef cpu_has_mips64r2 | |
131 | # define cpu_has_mips64r2 (cpu_data[0].isa_level & MIPS_CPU_ISA_M64R2) | |
132 | # endif | |
133 | ||
134 | /* | |
135 | * Shortcuts ... | |
136 | */ | |
137 | #define cpu_has_mips32 (cpu_has_mips32r1 | cpu_has_mips32r2) | |
138 | #define cpu_has_mips64 (cpu_has_mips64r1 | cpu_has_mips64r2) | |
139 | #define cpu_has_mips_r1 (cpu_has_mips32r1 | cpu_has_mips64r1) | |
140 | #define cpu_has_mips_r2 (cpu_has_mips32r2 | cpu_has_mips64r2) | |
141 | ||
e50c0a8f RB |
142 | #ifndef cpu_has_dsp |
143 | #define cpu_has_dsp (cpu_data[0].ases & MIPS_ASE_DSP) | |
144 | #endif | |
145 | ||
8f40611d RB |
146 | #ifdef CONFIG_MIPS_MT |
147 | #ifndef cpu_has_mipsmt | |
148 | # define cpu_has_mipsmt (cpu_data[0].ases & MIPS_ASE_MIPSMT) | |
149 | #endif | |
150 | #else | |
151 | # define cpu_has_mipsmt 0 | |
152 | #endif | |
153 | ||
875d43e7 | 154 | #ifdef CONFIG_32BIT |
1da177e4 LT |
155 | # ifndef cpu_has_nofpuex |
156 | # define cpu_has_nofpuex (cpu_data[0].options & MIPS_CPU_NOFPUEX) | |
157 | # endif | |
158 | # ifndef cpu_has_64bits | |
159 | # define cpu_has_64bits (cpu_data[0].isa_level & MIPS_CPU_ISA_64BIT) | |
160 | # endif | |
161 | # ifndef cpu_has_64bit_zero_reg | |
162 | # define cpu_has_64bit_zero_reg (cpu_data[0].isa_level & MIPS_CPU_ISA_64BIT) | |
163 | # endif | |
164 | # ifndef cpu_has_64bit_gp_regs | |
165 | # define cpu_has_64bit_gp_regs 0 | |
166 | # endif | |
167 | # ifndef cpu_has_64bit_addresses | |
168 | # define cpu_has_64bit_addresses 0 | |
169 | # endif | |
170 | #endif | |
171 | ||
875d43e7 | 172 | #ifdef CONFIG_64BIT |
1da177e4 LT |
173 | # ifndef cpu_has_nofpuex |
174 | # define cpu_has_nofpuex 0 | |
175 | # endif | |
176 | # ifndef cpu_has_64bits | |
177 | # define cpu_has_64bits 1 | |
178 | # endif | |
179 | # ifndef cpu_has_64bit_zero_reg | |
180 | # define cpu_has_64bit_zero_reg 1 | |
181 | # endif | |
182 | # ifndef cpu_has_64bit_gp_regs | |
183 | # define cpu_has_64bit_gp_regs 1 | |
184 | # endif | |
185 | # ifndef cpu_has_64bit_addresses | |
186 | # define cpu_has_64bit_addresses 1 | |
187 | # endif | |
188 | #endif | |
189 | ||
f41ae0b2 RB |
190 | #if defined(CONFIG_CPU_MIPSR2_IRQ_VI) && !defined(cpu_has_vint) |
191 | # define cpu_has_vint (cpu_data[0].options & MIPS_CPU_VINT) | |
192 | #elif !defined(cpu_has_vint) | |
8f40611d | 193 | # define cpu_has_vint 0 |
f41ae0b2 RB |
194 | #endif |
195 | ||
196 | #if defined(CONFIG_CPU_MIPSR2_IRQ_EI) && !defined(cpu_has_veic) | |
197 | # define cpu_has_veic (cpu_data[0].options & MIPS_CPU_VEIC) | |
198 | #elif !defined(cpu_has_veic) | |
8f40611d RB |
199 | # define cpu_has_veic 0 |
200 | #endif | |
201 | ||
1da177e4 LT |
202 | #ifndef cpu_has_subset_pcaches |
203 | #define cpu_has_subset_pcaches (cpu_data[0].options & MIPS_CPU_SUBSET_CACHES) | |
204 | #endif | |
205 | ||
206 | #ifndef cpu_dcache_line_size | |
207 | #define cpu_dcache_line_size() current_cpu_data.dcache.linesz | |
208 | #endif | |
209 | #ifndef cpu_icache_line_size | |
210 | #define cpu_icache_line_size() current_cpu_data.icache.linesz | |
211 | #endif | |
212 | #ifndef cpu_scache_line_size | |
213 | #define cpu_scache_line_size() current_cpu_data.scache.linesz | |
214 | #endif | |
215 | ||
216 | #endif /* __ASM_CPU_FEATURES_H */ |