git://bbs.cooldavid.org / net-next-2.6.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * include/asm-ppc/cputable.h | |
| 3 | * | |
| 4 | * Copyright (C) 2001 Ben. Herrenschmidt (benh@kernel.crashing.org) | |
| 5 | * | |
| 6 | * This program is free software; you can redistribute it and/or | |
| 7 | * modify it under the terms of the GNU General Public License | |
| 8 | * as published by the Free Software Foundation; either version | |
| 9 | * 2 of the License, or (at your option) any later version. | |
| 10 | */ | |
| 11 | ||
| 12 | #ifndef __ASM_PPC_CPUTABLE_H | |
| 13 | #define __ASM_PPC_CPUTABLE_H | |
| 14 | ||
| 15 | /* Exposed to userland CPU features */ | |
| 16 | #define PPC_FEATURE_32 0x80000000 | |
| 17 | #define PPC_FEATURE_64 0x40000000 | |
| 18 | #define PPC_FEATURE_601_INSTR 0x20000000 | |
| 19 | #define PPC_FEATURE_HAS_ALTIVEC 0x10000000 | |
| 20 | #define PPC_FEATURE_HAS_FPU 0x08000000 | |
| 21 | #define PPC_FEATURE_HAS_MMU 0x04000000 | |
| 22 | #define PPC_FEATURE_HAS_4xxMAC 0x02000000 | |
| 23 | #define PPC_FEATURE_UNIFIED_CACHE 0x01000000 | |
| 24 | #define PPC_FEATURE_HAS_SPE 0x00800000 | |
| 25 | #define PPC_FEATURE_HAS_EFP_SINGLE 0x00400000 | |
| 26 | #define PPC_FEATURE_HAS_EFP_DOUBLE 0x00200000 | |
| 27 | ||
| 28 | #ifdef __KERNEL__ | |
| 29 | ||
| 30 | #ifndef __ASSEMBLY__ | |
| 31 | ||
| 32 | /* This structure can grow, it's real size is used by head.S code | |
| 33 | * via the mkdefs mecanism. | |
| 34 | */ | |
| 35 | struct cpu_spec; | |
| 36 | ||
| 37 | typedef void (*cpu_setup_t)(unsigned long offset, int cpu_nr, struct cpu_spec* spec); | |
| 38 | ||
| 39 | struct cpu_spec { | |
| 40 | /* CPU is matched via (PVR & pvr_mask) == pvr_value */ | |
| 41 | unsigned int pvr_mask; | |
| 42 | unsigned int pvr_value; | |
| 43 | ||
| 44 | char *cpu_name; | |
| 45 | unsigned int cpu_features; /* Kernel features */ | |
| 46 | unsigned int cpu_user_features; /* Userland features */ | |
| 47 | ||
| 48 | /* cache line sizes */ | |
| 49 | unsigned int icache_bsize; | |
| 50 | unsigned int dcache_bsize; | |
| 51 | ||
| 52 | /* number of performance monitor counters */ | |
| 53 | unsigned int num_pmcs; | |
| 54 | ||
| 55 | /* this is called to initialize various CPU bits like L1 cache, | |
| 56 | * BHT, SPD, etc... from head.S before branching to identify_machine | |
| 57 | */ | |
| 58 | cpu_setup_t cpu_setup; | |
| 59 | }; | |
| 60 | ||
| 61 | extern struct cpu_spec cpu_specs[]; | |
| 62 | extern struct cpu_spec *cur_cpu_spec[]; | |
| 63 | ||
| 64 | static inline unsigned int cpu_has_feature(unsigned int feature) | |
| 65 | { | |
| 66 | return cur_cpu_spec[0]->cpu_features & feature; | |
| 67 | } | |
| 68 | ||
| 69 | #endif /* __ASSEMBLY__ */ | |
| 70 | ||
| 71 | /* CPU kernel features */ | |
| 72 | #define CPU_FTR_SPLIT_ID_CACHE 0x00000001 | |
| 73 | #define CPU_FTR_L2CR 0x00000002 | |
| 74 | #define CPU_FTR_SPEC7450 0x00000004 | |
| 75 | #define CPU_FTR_ALTIVEC 0x00000008 | |
| 76 | #define CPU_FTR_TAU 0x00000010 | |
| 77 | #define CPU_FTR_CAN_DOZE 0x00000020 | |
| 78 | #define CPU_FTR_USE_TB 0x00000040 | |
| 79 | #define CPU_FTR_604_PERF_MON 0x00000080 | |
| 80 | #define CPU_FTR_601 0x00000100 | |
| 81 | #define CPU_FTR_HPTE_TABLE 0x00000200 | |
| 82 | #define CPU_FTR_CAN_NAP 0x00000400 | |
| 83 | #define CPU_FTR_L3CR 0x00000800 | |
| 84 | #define CPU_FTR_L3_DISABLE_NAP 0x00001000 | |
| 85 | #define CPU_FTR_NAP_DISABLE_L2_PR 0x00002000 | |
| 86 | #define CPU_FTR_DUAL_PLL_750FX 0x00004000 | |
| 87 | #define CPU_FTR_NO_DPM 0x00008000 | |
| 88 | #define CPU_FTR_HAS_HIGH_BATS 0x00010000 | |
| 89 | #define CPU_FTR_NEED_COHERENT 0x00020000 | |
| 90 | #define CPU_FTR_NO_BTIC 0x00040000 | |
| 91 | ||
| 92 | #ifdef __ASSEMBLY__ | |
| 93 | ||
| 94 | #define BEGIN_FTR_SECTION 98: | |
| 95 | ||
| 96 | #define END_FTR_SECTION(msk, val) \ | |
| 97 | 99: \ | |
| 98 | .section __ftr_fixup,"a"; \ | |
| 99 | .align 2; \ | |
| 100 | .long msk; \ | |
| 101 | .long val; \ | |
| 102 | .long 98b; \ | |
| 103 | .long 99b; \ | |
| 104 | .previous | |
| 105 | ||
| 106 | #else | |
| 107 | ||
| 108 | #define BEGIN_FTR_SECTION "98:\n" | |
| 109 | #define END_FTR_SECTION(msk, val) \ | |
| 110 | "99:\n" \ | |
| 111 | " .section __ftr_fixup,\"a\";\n" \ | |
| 112 | " .align 2;\n" \ | |
| 113 | " .long "#msk";\n" \ | |
| 114 | " .long "#val";\n" \ | |
| 115 | " .long 98b;\n" \ | |
| 116 | " .long 99b;\n" \ | |
| 117 | " .previous\n" | |
| 118 | ||
| 119 | ||
| 120 | #endif /* __ASSEMBLY__ */ | |
| 121 | ||
| 122 | #define END_FTR_SECTION_IFSET(msk) END_FTR_SECTION((msk), (msk)) | |
| 123 | #define END_FTR_SECTION_IFCLR(msk) END_FTR_SECTION((msk), 0) | |
| 124 | ||
| 125 | #endif /* __ASM_PPC_CPUTABLE_H */ | |
| 126 | #endif /* __KERNEL__ */ | |
| 127 |