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   1 /*
   2  *  Copyright (C) 2001 Ben. Herrenschmidt (benh@kernel.crashing.org)
   3  *
   4  *  Modifications for ppc64:
   5  *      Copyright (C) 2003 Dave Engebretsen <engebret@us.ibm.com>
   6  *
   7  *  This program is free software; you can redistribute it and/or
   8  *  modify it under the terms of the GNU General Public License
   9  *  as published by the Free Software Foundation; either version
  10  *  2 of the License, or (at your option) any later version.
  11  */
  12 #ifndef __ASM_POWERPC_FIRMWARE_H
  13 #define __ASM_POWERPC_FIRMWARE_H
  14
  15 #ifdef __KERNEL__
  16
  17 #include <asm/asm-compat.h>
  18
  19 /* firmware feature bitmask values */
  20 #define FIRMWARE_MAX_FEATURES 63
  21
  22 #define FW_FEATURE_PFT          ASM_CONST(0x0000000000000001)
  23 #define FW_FEATURE_TCE          ASM_CONST(0x0000000000000002)
  24 #define FW_FEATURE_SPRG0        ASM_CONST(0x0000000000000004)
  25 #define FW_FEATURE_DABR         ASM_CONST(0x0000000000000008)
  26 #define FW_FEATURE_COPY         ASM_CONST(0x0000000000000010)
  27 #define FW_FEATURE_ASR          ASM_CONST(0x0000000000000020)
  28 #define FW_FEATURE_DEBUG        ASM_CONST(0x0000000000000040)
  29 #define FW_FEATURE_TERM         ASM_CONST(0x0000000000000080)
  30 #define FW_FEATURE_PERF         ASM_CONST(0x0000000000000100)
  31 #define FW_FEATURE_DUMP         ASM_CONST(0x0000000000000200)
  32 #define FW_FEATURE_INTERRUPT    ASM_CONST(0x0000000000000400)
  33 #define FW_FEATURE_MIGRATE      ASM_CONST(0x0000000000000800)
  34 #define FW_FEATURE_PERFMON      ASM_CONST(0x0000000000001000)
  35 #define FW_FEATURE_CRQ          ASM_CONST(0x0000000000002000)
  36 #define FW_FEATURE_VIO          ASM_CONST(0x0000000000004000)
  37 #define FW_FEATURE_RDMA         ASM_CONST(0x0000000000008000)
  38 #define FW_FEATURE_LLAN         ASM_CONST(0x0000000000010000)
  39 #define FW_FEATURE_BULK         ASM_CONST(0x0000000000020000)
  40 #define FW_FEATURE_XDABR        ASM_CONST(0x0000000000040000)
  41 #define FW_FEATURE_MULTITCE     ASM_CONST(0x0000000000080000)
  42 #define FW_FEATURE_SPLPAR       ASM_CONST(0x0000000000100000)
  43 #define FW_FEATURE_ISERIES      ASM_CONST(0x0000000000200000)
  44 #define FW_FEATURE_LPAR         ASM_CONST(0x0000000000400000)
  45 #define FW_FEATURE_PS3_LV1      ASM_CONST(0x0000000000800000)
  46 #define FW_FEATURE_BEAT         ASM_CONST(0x0000000001000000)
  47 #define FW_FEATURE_BULK_REMOVE  ASM_CONST(0x0000000002000000)
  48
  49 #ifndef __ASSEMBLY__
  50
  51 enum {
  52 #ifdef CONFIG_PPC64
  53         FW_FEATURE_PSERIES_POSSIBLE = FW_FEATURE_PFT | FW_FEATURE_TCE |
  54                 FW_FEATURE_SPRG0 | FW_FEATURE_DABR | FW_FEATURE_COPY |
  55                 FW_FEATURE_ASR | FW_FEATURE_DEBUG | FW_FEATURE_TERM |
  56                 FW_FEATURE_PERF | FW_FEATURE_DUMP | FW_FEATURE_INTERRUPT |
  57                 FW_FEATURE_MIGRATE | FW_FEATURE_PERFMON | FW_FEATURE_CRQ |
  58                 FW_FEATURE_VIO | FW_FEATURE_RDMA | FW_FEATURE_LLAN |
  59                 FW_FEATURE_BULK | FW_FEATURE_XDABR | FW_FEATURE_MULTITCE |
  60                 FW_FEATURE_SPLPAR | FW_FEATURE_LPAR,
  61         FW_FEATURE_PSERIES_ALWAYS = 0,
  62         FW_FEATURE_ISERIES_POSSIBLE = FW_FEATURE_ISERIES | FW_FEATURE_LPAR,
  63         FW_FEATURE_ISERIES_ALWAYS = FW_FEATURE_ISERIES | FW_FEATURE_LPAR,
  64         FW_FEATURE_PS3_POSSIBLE = FW_FEATURE_LPAR | FW_FEATURE_PS3_LV1,
  65         FW_FEATURE_PS3_ALWAYS = FW_FEATURE_LPAR | FW_FEATURE_PS3_LV1,
  66         FW_FEATURE_CELLEB_POSSIBLE = FW_FEATURE_LPAR | FW_FEATURE_BEAT,
  67         FW_FEATURE_CELLEB_ALWAYS = FW_FEATURE_LPAR | FW_FEATURE_BEAT,
  68         FW_FEATURE_NATIVE_POSSIBLE = 0,
  69         FW_FEATURE_NATIVE_ALWAYS = 0,
  70         FW_FEATURE_POSSIBLE =
  71 #ifdef CONFIG_PPC_PSERIES
  72                 FW_FEATURE_PSERIES_POSSIBLE |
  73 #endif
  74 #ifdef CONFIG_PPC_ISERIES
  75                 FW_FEATURE_ISERIES_POSSIBLE |
  76 #endif
  77 #ifdef CONFIG_PPC_PS3
  78                 FW_FEATURE_PS3_POSSIBLE |
  79 #endif
  80 #ifdef CONFIG_PPC_CELLEB
  81                 FW_FEATURE_CELLEB_POSSIBLE |
  82 #endif
  83 #ifdef CONFIG_PPC_NATIVE
  84                 FW_FEATURE_NATIVE_ALWAYS |
  85 #endif
  86                 0,
  87         FW_FEATURE_ALWAYS =
  88 #ifdef CONFIG_PPC_PSERIES
  89                 FW_FEATURE_PSERIES_ALWAYS &
  90 #endif
  91 #ifdef CONFIG_PPC_ISERIES
  92                 FW_FEATURE_ISERIES_ALWAYS &
  93 #endif
  94 #ifdef CONFIG_PPC_PS3
  95                 FW_FEATURE_PS3_ALWAYS &
  96 #endif
  97 #ifdef CONFIG_PPC_CELLEB
  98                 FW_FEATURE_CELLEB_ALWAYS &
  99 #endif
 100 #ifdef CONFIG_PPC_NATIVE
 101                 FW_FEATURE_NATIVE_ALWAYS &
 102 #endif
 103                 FW_FEATURE_POSSIBLE,
 104
 105 #else /* CONFIG_PPC64 */
 106         FW_FEATURE_POSSIBLE = 0,
 107         FW_FEATURE_ALWAYS = 0,
 108 #endif
 109 };
 110
 111 /* This is used to identify firmware features which are available
 112  * to the kernel.
 113  */
 114 extern unsigned long    powerpc_firmware_features;
 115
 116 #define firmware_has_feature(feature)                                   \
 117         ((FW_FEATURE_ALWAYS & (feature)) ||                             \
 118                 (FW_FEATURE_POSSIBLE & powerpc_firmware_features & (feature)))
 119
 120 extern void system_reset_fwnmi(void);
 121 extern void machine_check_fwnmi(void);
 122
 123 /* This is true if we are using the firmware NMI handler (typically LPAR) */
 124 extern int fwnmi_active;
 125
 126 extern unsigned int __start___fw_ftr_fixup, __stop___fw_ftr_fixup;
 127
 128 #else /* __ASSEMBLY__ */
 129
 130 #define BEGIN_FW_FTR_SECTION_NESTED(label)      label:
 131 #define BEGIN_FW_FTR_SECTION                    BEGIN_FW_FTR_SECTION_NESTED(97)
 132 #define END_FW_FTR_SECTION_NESTED(msk, val, label) \
 133         MAKE_FTR_SECTION_ENTRY(msk, val, label, __fw_ftr_fixup)
 134 #define END_FW_FTR_SECTION(msk, val)            \
 135         END_FW_FTR_SECTION_NESTED(msk, val, 97)
 136
 137 #define END_FW_FTR_SECTION_IFSET(msk)   END_FW_FTR_SECTION((msk), (msk))
 138 #define END_FW_FTR_SECTION_IFCLR(msk)   END_FW_FTR_SECTION((msk), 0)
 139
 140 #endif /* __ASSEMBLY__ */
 141 #endif /* __KERNEL__ */
 142 #endif /* __ASM_POWERPC_FIRMWARE_H */