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1da177e4 LT |
1 | /* |
2 | * include/asm-ppc64/cputable.h | |
3 | * | |
4 | * Copyright (C) 2001 Ben. Herrenschmidt (benh@kernel.crashing.org) | |
5 | * | |
6 | * Modifications for ppc64: | |
7 | * Copyright (C) 2003 Dave Engebretsen <engebret@us.ibm.com> | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or | |
10 | * modify it under the terms of the GNU General Public License | |
11 | * as published by the Free Software Foundation; either version | |
12 | * 2 of the License, or (at your option) any later version. | |
13 | */ | |
14 | ||
15 | #ifndef __ASM_PPC_CPUTABLE_H | |
16 | #define __ASM_PPC_CPUTABLE_H | |
17 | ||
18 | #include <linux/config.h> | |
19 | #include <asm/page.h> /* for ASM_CONST */ | |
20 | ||
21 | /* Exposed to userland CPU features - Must match ppc32 definitions */ | |
22 | #define PPC_FEATURE_32 0x80000000 | |
23 | #define PPC_FEATURE_64 0x40000000 | |
24 | #define PPC_FEATURE_601_INSTR 0x20000000 | |
25 | #define PPC_FEATURE_HAS_ALTIVEC 0x10000000 | |
26 | #define PPC_FEATURE_HAS_FPU 0x08000000 | |
27 | #define PPC_FEATURE_HAS_MMU 0x04000000 | |
28 | #define PPC_FEATURE_HAS_4xxMAC 0x02000000 | |
29 | #define PPC_FEATURE_UNIFIED_CACHE 0x01000000 | |
30 | ||
31 | #ifdef __KERNEL__ | |
32 | ||
33 | #ifndef __ASSEMBLY__ | |
34 | ||
35 | /* This structure can grow, it's real size is used by head.S code | |
36 | * via the mkdefs mechanism. | |
37 | */ | |
38 | struct cpu_spec; | |
39 | ||
40 | typedef void (*cpu_setup_t)(unsigned long offset, struct cpu_spec* spec); | |
41 | ||
42 | struct cpu_spec { | |
43 | /* CPU is matched via (PVR & pvr_mask) == pvr_value */ | |
44 | unsigned int pvr_mask; | |
45 | unsigned int pvr_value; | |
46 | ||
47 | char *cpu_name; | |
48 | unsigned long cpu_features; /* Kernel features */ | |
49 | unsigned int cpu_user_features; /* Userland features */ | |
50 | ||
51 | /* cache line sizes */ | |
52 | unsigned int icache_bsize; | |
53 | unsigned int dcache_bsize; | |
54 | ||
fd5b4377 AB |
55 | /* number of performance monitor counters */ |
56 | unsigned int num_pmcs; | |
57 | ||
1da177e4 LT |
58 | /* this is called to initialize various CPU bits like L1 cache, |
59 | * BHT, SPD, etc... from head.S before branching to identify_machine | |
60 | */ | |
61 | cpu_setup_t cpu_setup; | |
1da177e4 LT |
62 | }; |
63 | ||
64 | extern struct cpu_spec cpu_specs[]; | |
65 | extern struct cpu_spec *cur_cpu_spec; | |
66 | ||
67 | static inline unsigned long cpu_has_feature(unsigned long feature) | |
68 | { | |
69 | return cur_cpu_spec->cpu_features & feature; | |
70 | } | |
71 | ||
1da177e4 LT |
72 | #endif /* __ASSEMBLY__ */ |
73 | ||
74 | /* CPU kernel features */ | |
75 | ||
76 | /* Retain the 32b definitions for the time being - use bottom half of word */ | |
77 | #define CPU_FTR_SPLIT_ID_CACHE ASM_CONST(0x0000000000000001) | |
78 | #define CPU_FTR_L2CR ASM_CONST(0x0000000000000002) | |
79 | #define CPU_FTR_SPEC7450 ASM_CONST(0x0000000000000004) | |
80 | #define CPU_FTR_ALTIVEC ASM_CONST(0x0000000000000008) | |
81 | #define CPU_FTR_TAU ASM_CONST(0x0000000000000010) | |
82 | #define CPU_FTR_CAN_DOZE ASM_CONST(0x0000000000000020) | |
83 | #define CPU_FTR_USE_TB ASM_CONST(0x0000000000000040) | |
84 | #define CPU_FTR_604_PERF_MON ASM_CONST(0x0000000000000080) | |
85 | #define CPU_FTR_601 ASM_CONST(0x0000000000000100) | |
86 | #define CPU_FTR_HPTE_TABLE ASM_CONST(0x0000000000000200) | |
87 | #define CPU_FTR_CAN_NAP ASM_CONST(0x0000000000000400) | |
88 | #define CPU_FTR_L3CR ASM_CONST(0x0000000000000800) | |
89 | #define CPU_FTR_L3_DISABLE_NAP ASM_CONST(0x0000000000001000) | |
90 | #define CPU_FTR_NAP_DISABLE_L2_PR ASM_CONST(0x0000000000002000) | |
91 | #define CPU_FTR_DUAL_PLL_750FX ASM_CONST(0x0000000000004000) | |
92 | ||
93 | /* Add the 64b processor unique features in the top half of the word */ | |
94 | #define CPU_FTR_SLB ASM_CONST(0x0000000100000000) | |
95 | #define CPU_FTR_16M_PAGE ASM_CONST(0x0000000200000000) | |
96 | #define CPU_FTR_TLBIEL ASM_CONST(0x0000000400000000) | |
97 | #define CPU_FTR_NOEXECUTE ASM_CONST(0x0000000800000000) | |
98 | #define CPU_FTR_NODSISRALIGN ASM_CONST(0x0000001000000000) | |
99 | #define CPU_FTR_IABR ASM_CONST(0x0000002000000000) | |
100 | #define CPU_FTR_MMCRA ASM_CONST(0x0000004000000000) | |
8530935d | 101 | /* unused ASM_CONST(0x0000008000000000) */ |
1da177e4 LT |
102 | #define CPU_FTR_SMT ASM_CONST(0x0000010000000000) |
103 | #define CPU_FTR_COHERENT_ICACHE ASM_CONST(0x0000020000000000) | |
104 | #define CPU_FTR_LOCKLESS_TLBIE ASM_CONST(0x0000040000000000) | |
105 | #define CPU_FTR_MMCRA_SIHV ASM_CONST(0x0000080000000000) | |
a2f7a9ce | 106 | #define CPU_FTR_CTRL ASM_CONST(0x0000100000000000) |
1da177e4 | 107 | |
1da177e4 | 108 | #ifndef __ASSEMBLY__ |
1ababe11 | 109 | |
1da177e4 LT |
110 | #define COMMON_USER_PPC64 (PPC_FEATURE_32 | PPC_FEATURE_64 | \ |
111 | PPC_FEATURE_HAS_FPU | PPC_FEATURE_HAS_MMU) | |
112 | ||
113 | #define CPU_FTR_PPCAS_ARCH_V2_BASE (CPU_FTR_SLB | \ | |
114 | CPU_FTR_TLBIEL | CPU_FTR_NOEXECUTE | \ | |
a2f7a9ce | 115 | CPU_FTR_NODSISRALIGN | CPU_FTR_CTRL) |
1da177e4 LT |
116 | |
117 | /* iSeries doesn't support large pages */ | |
118 | #ifdef CONFIG_PPC_ISERIES | |
119 | #define CPU_FTR_PPCAS_ARCH_V2 (CPU_FTR_PPCAS_ARCH_V2_BASE) | |
120 | #else | |
121 | #define CPU_FTR_PPCAS_ARCH_V2 (CPU_FTR_PPCAS_ARCH_V2_BASE | CPU_FTR_16M_PAGE) | |
1ababe11 | 122 | #endif /* CONFIG_PPC_ISERIES */ |
1da177e4 | 123 | |
1ababe11 | 124 | #endif /* __ASSEMBLY */ |
1da177e4 LT |
125 | |
126 | #ifdef __ASSEMBLY__ | |
127 | ||
128 | #define BEGIN_FTR_SECTION 98: | |
129 | ||
130 | #define END_FTR_SECTION(msk, val) \ | |
131 | 99: \ | |
132 | .section __ftr_fixup,"a"; \ | |
133 | .align 3; \ | |
134 | .llong msk; \ | |
135 | .llong val; \ | |
136 | .llong 98b; \ | |
137 | .llong 99b; \ | |
138 | .previous | |
139 | ||
140 | #else | |
141 | ||
142 | #define BEGIN_FTR_SECTION "98:\n" | |
143 | #define END_FTR_SECTION(msk, val) \ | |
144 | "99:\n" \ | |
145 | " .section __ftr_fixup,\"a\";\n" \ | |
146 | " .align 3;\n" \ | |
147 | " .llong "#msk";\n" \ | |
148 | " .llong "#val";\n" \ | |
149 | " .llong 98b;\n" \ | |
150 | " .llong 99b;\n" \ | |
151 | " .previous\n" | |
152 | ||
153 | #endif /* __ASSEMBLY__ */ | |
154 | ||
155 | #define END_FTR_SECTION_IFSET(msk) END_FTR_SECTION((msk), (msk)) | |
156 | #define END_FTR_SECTION_IFCLR(msk) END_FTR_SECTION((msk), 0) | |
157 | ||
158 | #endif /* __ASM_PPC_CPUTABLE_H */ | |
159 | #endif /* __KERNEL__ */ | |
160 |