include/asm-powerpc/firmware.h

   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
  47 #ifndef __ASSEMBLY__
  48
  49 enum {
  50 #ifdef CONFIG_PPC64
  51         FW_FEATURE_PSERIES_POSSIBLE = FW_FEATURE_PFT | FW_FEATURE_TCE |
  52                 FW_FEATURE_SPRG0 | FW_FEATURE_DABR | FW_FEATURE_COPY |
  53                 FW_FEATURE_ASR | FW_FEATURE_DEBUG | FW_FEATURE_TERM |
  54                 FW_FEATURE_PERF | FW_FEATURE_DUMP | FW_FEATURE_INTERRUPT |
  55                 FW_FEATURE_MIGRATE | FW_FEATURE_PERFMON | FW_FEATURE_CRQ |
  56                 FW_FEATURE_VIO | FW_FEATURE_RDMA | FW_FEATURE_LLAN |
  57                 FW_FEATURE_BULK | FW_FEATURE_XDABR | FW_FEATURE_MULTITCE |
  58                 FW_FEATURE_SPLPAR | FW_FEATURE_LPAR,
  59         FW_FEATURE_PSERIES_ALWAYS = 0,
  60         FW_FEATURE_ISERIES_POSSIBLE = FW_FEATURE_ISERIES | FW_FEATURE_LPAR,
  61         FW_FEATURE_ISERIES_ALWAYS = FW_FEATURE_ISERIES | FW_FEATURE_LPAR,
  62         FW_FEATURE_PS3_POSSIBLE = FW_FEATURE_LPAR | FW_FEATURE_PS3_LV1,
  63         FW_FEATURE_PS3_ALWAYS = FW_FEATURE_LPAR | FW_FEATURE_PS3_LV1,
  64         FW_FEATURE_NATIVE_POSSIBLE = 0,
  65         FW_FEATURE_NATIVE_ALWAYS = 0,
  66         FW_FEATURE_POSSIBLE =
  67 #ifdef CONFIG_PPC_PSERIES
  68                 FW_FEATURE_PSERIES_POSSIBLE |
  69 #endif
  70 #ifdef CONFIG_PPC_ISERIES
  71                 FW_FEATURE_ISERIES_POSSIBLE |
  72 #endif
  73 #ifdef CONFIG_PPC_PS3
  74                 FW_FEATURE_PS3_POSSIBLE |
  75 #endif
  76 #ifdef CONFIG_PPC_NATIVE
  77                 FW_FEATURE_NATIVE_ALWAYS |
  78 #endif
  79                 0,
  80         FW_FEATURE_ALWAYS =
  81 #ifdef CONFIG_PPC_PSERIES
  82                 FW_FEATURE_PSERIES_ALWAYS &
  83 #endif
  84 #ifdef CONFIG_PPC_ISERIES
  85                 FW_FEATURE_ISERIES_ALWAYS &
  86 #endif
  87 #ifdef CONFIG_PPC_PS3
  88                 FW_FEATURE_PS3_ALWAYS &
  89 #endif
  90 #ifdef CONFIG_PPC_NATIVE
  91                 FW_FEATURE_NATIVE_ALWAYS &
  92 #endif
  93                 FW_FEATURE_POSSIBLE,
  94
  95 #else /* CONFIG_PPC64 */
  96         FW_FEATURE_POSSIBLE = 0,
  97         FW_FEATURE_ALWAYS = 0,
  98 #endif
  99 };
 100
 101 /* This is used to identify firmware features which are available
 102  * to the kernel.
 103  */
 104 extern unsigned long    powerpc_firmware_features;
 105
 106 #define firmware_has_feature(feature)                                   \
 107         ((FW_FEATURE_ALWAYS & (feature)) ||                             \
 108                 (FW_FEATURE_POSSIBLE & powerpc_firmware_features & (feature)))
 109
 110 extern void system_reset_fwnmi(void);
 111 extern void machine_check_fwnmi(void);
 112
 113 /* This is true if we are using the firmware NMI handler (typically LPAR) */
 114 extern int fwnmi_active;
 115
 116 extern unsigned int __start___fw_ftr_fixup, __stop___fw_ftr_fixup;
 117
 118 #else /* __ASSEMBLY__ */
 119
 120 #define BEGIN_FW_FTR_SECTION_NESTED(label)      label:
 121 #define BEGIN_FW_FTR_SECTION                    BEGIN_FW_FTR_SECTION_NESTED(97)
 122 #define END_FW_FTR_SECTION_NESTED(msk, val, label) \
 123         MAKE_FTR_SECTION_ENTRY(msk, val, label, __fw_ftr_fixup)
 124 #define END_FW_FTR_SECTION(msk, val)            \
 125         END_FW_FTR_SECTION_NESTED(msk, val, 97)
 126
 127 #define END_FW_FTR_SECTION_IFSET(msk)   END_FW_FTR_SECTION((msk), (msk))
 128 #define END_FW_FTR_SECTION_IFCLR(msk)   END_FW_FTR_SECTION((msk), 0)
 129
 130 #endif /* __ASSEMBLY__ */
 131 #endif /* __KERNEL__ */
 132 #endif /* __ASM_POWERPC_FIRMWARE_H */