linux-old/include/asm-ppc64/cputable.h
<<
>>
Prefs
   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 */
  35struct cpu_spec;
  36
  37typedef void (*cpu_setup_t)(unsigned long offset, struct cpu_spec* spec);
  38
  39struct 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
  63extern struct cpu_spec          cpu_specs[];
  64extern 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
  92typedef struct {
  93    unsigned long val;
  94    char * name;
  95} firmware_feature_t;
  96
  97extern 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)               \
 14899:                                             \
 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
 179
lxr.linux.no kindly hosted by Redpill Linpro AS, provider of Linux consulting and operations services since 1995.