include/asm-ppc64/cputable.h

   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 /* Exposed to userland CPU features - Must match ppc32 definitions */
  19 #define PPC_FEATURE_32                  0x80000000
  20 #define PPC_FEATURE_64                  0x40000000
  21 #define PPC_FEATURE_601_INSTR           0x20000000
  22 #define PPC_FEATURE_HAS_ALTIVEC         0x10000000
  23 #define PPC_FEATURE_HAS_FPU             0x08000000
  24 #define PPC_FEATURE_HAS_MMU             0x04000000
  25 #define PPC_FEATURE_HAS_4xxMAC          0x02000000
  26 #define PPC_FEATURE_UNIFIED_CACHE       0x01000000
  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 mechanism.
  34  */
  35 struct cpu_spec;
  36
  37 typedef void (*cpu_setup_t)(unsigned long offset, 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 long   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         /* this is called to initialize various CPU bits like L1 cache,
  53          * BHT, SPD, etc... from head.S before branching to identify_machine
  54          */
  55         cpu_setup_t     cpu_setup;
  56
  57         /* This is used to identify firmware features which are available
  58          * to the kernel.
  59          */
  60         unsigned long   firmware_features;
  61 };
  62
  63 extern struct cpu_spec          cpu_specs[];
  64 extern struct cpu_spec          *cur_cpu_spec;
  65
  66
  67 /* firmware feature bitmask values */
  68 #define FIRMWARE_MAX_FEATURES 63
  69
  70 #define FW_FEATURE_PFT          (1UL<<0)
  71 #define FW_FEATURE_TCE          (1UL<<1)
  72 #define FW_FEATURE_SPRG0        (1UL<<2)
  73 #define FW_FEATURE_DABR         (1UL<<3)
  74 #define FW_FEATURE_COPY         (1UL<<4)
  75 #define FW_FEATURE_ASR          (1UL<<5)
  76 #define FW_FEATURE_DEBUG        (1UL<<6)
  77 #define FW_FEATURE_TERM         (1UL<<7)
  78 #define FW_FEATURE_PERF         (1UL<<8)
  79 #define FW_FEATURE_DUMP         (1UL<<9)
  80 #define FW_FEATURE_INTERRUPT    (1UL<<10)
  81 #define FW_FEATURE_MIGRATE      (1UL<<11)
  82 #define FW_FEATURE_PERFMON      (1UL<<12)
  83 #define FW_FEATURE_CRQ          (1UL<<13)
  84 #define FW_FEATURE_VIO          (1UL<<14)
  85 #define FW_FEATURE_RDMA         (1UL<<15)
  86 #define FW_FEATURE_LLAN         (1UL<<16)
  87 #define FW_FEATURE_BULK         (1UL<<17)
  88 #define FW_FEATURE_XDABR        (1UL<<18)
  89 #define FW_FEATURE_MULTITCE     (1UL<<19)
  90 #define FW_FEATURE_SPLPAR       (1UL<<20)
  91
  92 typedef struct {
  93     unsigned long val;
  94     char * name;
  95 } firmware_feature_t;
  96
  97 extern firmware_feature_t firmware_features_table[];
  98
  99 #endif /* __ASSEMBLY__ */
 100
 101 /* CPU kernel features */
 102
 103 /* Retain the 32b definitions for the time being - use bottom half of word */
 104 #define CPU_FTR_SPLIT_ID_CACHE          0x0000000000000001
 105 #define CPU_FTR_L2CR                    0x0000000000000002
 106 #define CPU_FTR_SPEC7450                0x0000000000000004
 107 #define CPU_FTR_ALTIVEC                 0x0000000000000008
 108 #define CPU_FTR_TAU                     0x0000000000000010
 109 #define CPU_FTR_CAN_DOZE                0x0000000000000020
 110 #define CPU_FTR_USE_TB                  0x0000000000000040
 111 #define CPU_FTR_604_PERF_MON            0x0000000000000080
 112 #define CPU_FTR_601                     0x0000000000000100
 113 #define CPU_FTR_HPTE_TABLE              0x0000000000000200
 114 #define CPU_FTR_CAN_NAP                 0x0000000000000400
 115 #define CPU_FTR_L3CR                    0x0000000000000800
 116 #define CPU_FTR_L3_DISABLE_NAP          0x0000000000001000
 117 #define CPU_FTR_NAP_DISABLE_L2_PR       0x0000000000002000
 118 #define CPU_FTR_DUAL_PLL_750FX          0x0000000000004000
 119
 120 /* Add the 64b processor unique features in the top half of the word */
 121 #define CPU_FTR_SLB                     0x0000000100000000
 122 #define CPU_FTR_16M_PAGE                0x0000000200000000
 123 #define CPU_FTR_TLBIEL                  0x0000000400000000
 124 #define CPU_FTR_NOEXECUTE               0x0000000800000000
 125 #define CPU_FTR_NODSISRALIGN            0x0000001000000000
 126 #define CPU_FTR_DABR                    0x0000002000000000
 127 #define CPU_FTR_IABR                    0x0000004000000000
 128
 129 /* Platform firmware features */
 130 #define FW_FTR_                         0x0000000000000001
 131
 132 #ifndef __ASSEMBLY__
 133 #define COMMON_USER_PPC64       (PPC_FEATURE_32 | PPC_FEATURE_64 | \
 134                                  PPC_FEATURE_HAS_FPU | PPC_FEATURE_HAS_MMU)
 135
 136 #define CPU_FTR_PPCAS_ARCH_V2   (CPU_FTR_SLB | CPU_FTR_16M_PAGE | \
 137                                  CPU_FTR_TLBIEL | CPU_FTR_NOEXECUTE | \
 138                                  CPU_FTR_NODSISRALIGN)
 139
 140 #define COMMON_PPC64_FW (0)
 141 #endif
 142
 143 #ifdef __ASSEMBLY__
 144
 145 #define BEGIN_FTR_SECTION               98:
 146
 147 #define END_FTR_SECTION(msk, val)               \
 148 99:                                             \
 149         .section __ftr_fixup,"a";               \
 150         .align 3;                               \
 151         .llong msk;                             \
 152         .llong val;                             \
 153         .llong 98b;                             \
 154         .llong 99b;                             \
 155         .previous
 156
 157 #else
 158
 159 #define BEGIN_FTR_SECTION               "98:\n"
 160 #define END_FTR_SECTION(msk, val)               \
 161 "99:\n"                                         \
 162 "       .section __ftr_fixup,\"a\";\n"          \
 163 "       .align 3;\n"                            \
 164 "       .llong "#msk";\n"                       \
 165 "       .llong "#val";\n"                       \
 166 "       .llong 98b;\n"                          \
 167 "       .llong 99b;\n"                          \
 168 "       .previous\n"
 169
 170 #endif /* __ASSEMBLY__ */
 171
 172
 173 #define END_FTR_SECTION_IFSET(msk)      END_FTR_SECTION((msk), (msk))
 174 #define END_FTR_SECTION_IFCLR(msk)      END_FTR_SECTION((msk), 0)
 175
 176 #endif /* __ASM_PPC_CPUTABLE_H */
 177 #endif /* __KERNEL__ */
 178