arch/powerpc/include/asm/firmware.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  *  Copyright (C) 2001 Ben. Herrenschmidt (benh@kernel.crashing.org)
   4  *
   5  *  Modifications for ppc64:
   6  *      Copyright (C) 2003 Dave Engebretsen <engebret@us.ibm.com>
   7  */
   8 #ifndef __ASM_POWERPC_FIRMWARE_H
   9 #define __ASM_POWERPC_FIRMWARE_H
  10
  11 #ifdef __KERNEL__
  12
  13 #include <asm/asm-const.h>
  14
  15 /* firmware feature bitmask values */
  16
  17 #define FW_FEATURE_PFT          ASM_CONST(0x0000000000000001)
  18 #define FW_FEATURE_TCE          ASM_CONST(0x0000000000000002)
  19 #define FW_FEATURE_SPRG0        ASM_CONST(0x0000000000000004)
  20 #define FW_FEATURE_DABR         ASM_CONST(0x0000000000000008)
  21 #define FW_FEATURE_COPY         ASM_CONST(0x0000000000000010)
  22 #define FW_FEATURE_ASR          ASM_CONST(0x0000000000000020)
  23 #define FW_FEATURE_DEBUG        ASM_CONST(0x0000000000000040)
  24 #define FW_FEATURE_TERM         ASM_CONST(0x0000000000000080)
  25 #define FW_FEATURE_PERF         ASM_CONST(0x0000000000000100)
  26 #define FW_FEATURE_DUMP         ASM_CONST(0x0000000000000200)
  27 #define FW_FEATURE_INTERRUPT    ASM_CONST(0x0000000000000400)
  28 #define FW_FEATURE_MIGRATE      ASM_CONST(0x0000000000000800)
  29 #define FW_FEATURE_PERFMON      ASM_CONST(0x0000000000001000)
  30 #define FW_FEATURE_CRQ          ASM_CONST(0x0000000000002000)
  31 #define FW_FEATURE_VIO          ASM_CONST(0x0000000000004000)
  32 #define FW_FEATURE_RDMA         ASM_CONST(0x0000000000008000)
  33 #define FW_FEATURE_LLAN         ASM_CONST(0x0000000000010000)
  34 #define FW_FEATURE_BULK_REMOVE  ASM_CONST(0x0000000000020000)
  35 #define FW_FEATURE_XDABR        ASM_CONST(0x0000000000040000)
  36 #define FW_FEATURE_MULTITCE     ASM_CONST(0x0000000000080000)
  37 #define FW_FEATURE_SPLPAR       ASM_CONST(0x0000000000100000)
  38 #define FW_FEATURE_LPAR         ASM_CONST(0x0000000000400000)
  39 #define FW_FEATURE_PS3_LV1      ASM_CONST(0x0000000000800000)
  40 #define FW_FEATURE_HPT_RESIZE   ASM_CONST(0x0000000001000000)
  41 #define FW_FEATURE_CMO          ASM_CONST(0x0000000002000000)
  42 #define FW_FEATURE_VPHN         ASM_CONST(0x0000000004000000)
  43 #define FW_FEATURE_XCMO         ASM_CONST(0x0000000008000000)
  44 #define FW_FEATURE_OPAL         ASM_CONST(0x0000000010000000)
  45 #define FW_FEATURE_SET_MODE     ASM_CONST(0x0000000040000000)
  46 #define FW_FEATURE_BEST_ENERGY  ASM_CONST(0x0000000080000000)
  47 #define FW_FEATURE_TYPE1_AFFINITY ASM_CONST(0x0000000100000000)
  48 #define FW_FEATURE_PRRN         ASM_CONST(0x0000000200000000)
  49 #define FW_FEATURE_DRMEM_V2     ASM_CONST(0x0000000400000000)
  50 #define FW_FEATURE_DRC_INFO     ASM_CONST(0x0000000800000000)
  51 #define FW_FEATURE_BLOCK_REMOVE ASM_CONST(0x0000001000000000)
  52 #define FW_FEATURE_PAPR_SCM     ASM_CONST(0x0000002000000000)
  53 #define FW_FEATURE_ULTRAVISOR   ASM_CONST(0x0000004000000000)
  54
  55 #ifndef __ASSEMBLY__
  56
  57 enum {
  58 #ifdef CONFIG_PPC64
  59         FW_FEATURE_PSERIES_POSSIBLE = FW_FEATURE_PFT | FW_FEATURE_TCE |
  60                 FW_FEATURE_SPRG0 | FW_FEATURE_DABR | FW_FEATURE_COPY |
  61                 FW_FEATURE_ASR | FW_FEATURE_DEBUG | FW_FEATURE_TERM |
  62                 FW_FEATURE_PERF | FW_FEATURE_DUMP | FW_FEATURE_INTERRUPT |
  63                 FW_FEATURE_MIGRATE | FW_FEATURE_PERFMON | FW_FEATURE_CRQ |
  64                 FW_FEATURE_VIO | FW_FEATURE_RDMA | FW_FEATURE_LLAN |
  65                 FW_FEATURE_BULK_REMOVE | FW_FEATURE_XDABR |
  66                 FW_FEATURE_MULTITCE | FW_FEATURE_SPLPAR | FW_FEATURE_LPAR |
  67                 FW_FEATURE_CMO | FW_FEATURE_VPHN | FW_FEATURE_XCMO |
  68                 FW_FEATURE_SET_MODE | FW_FEATURE_BEST_ENERGY |
  69                 FW_FEATURE_TYPE1_AFFINITY | FW_FEATURE_PRRN |
  70                 FW_FEATURE_HPT_RESIZE | FW_FEATURE_DRMEM_V2 |
  71                 FW_FEATURE_DRC_INFO | FW_FEATURE_BLOCK_REMOVE |
  72                 FW_FEATURE_PAPR_SCM | FW_FEATURE_ULTRAVISOR,
  73         FW_FEATURE_PSERIES_ALWAYS = 0,
  74         FW_FEATURE_POWERNV_POSSIBLE = FW_FEATURE_OPAL | FW_FEATURE_ULTRAVISOR,
  75         FW_FEATURE_POWERNV_ALWAYS = 0,
  76         FW_FEATURE_PS3_POSSIBLE = FW_FEATURE_LPAR | FW_FEATURE_PS3_LV1,
  77         FW_FEATURE_PS3_ALWAYS = FW_FEATURE_LPAR | FW_FEATURE_PS3_LV1,
  78         FW_FEATURE_NATIVE_POSSIBLE = 0,
  79         FW_FEATURE_NATIVE_ALWAYS = 0,
  80         FW_FEATURE_POSSIBLE =
  81 #ifdef CONFIG_PPC_PSERIES
  82                 FW_FEATURE_PSERIES_POSSIBLE |
  83 #endif
  84 #ifdef CONFIG_PPC_POWERNV
  85                 FW_FEATURE_POWERNV_POSSIBLE |
  86 #endif
  87 #ifdef CONFIG_PPC_PS3
  88                 FW_FEATURE_PS3_POSSIBLE |
  89 #endif
  90 #ifdef CONFIG_PPC_NATIVE
  91                 FW_FEATURE_NATIVE_ALWAYS |
  92 #endif
  93                 0,
  94         FW_FEATURE_ALWAYS =
  95 #ifdef CONFIG_PPC_PSERIES
  96                 FW_FEATURE_PSERIES_ALWAYS &
  97 #endif
  98 #ifdef CONFIG_PPC_POWERNV
  99                 FW_FEATURE_POWERNV_ALWAYS &
 100 #endif
 101 #ifdef CONFIG_PPC_PS3
 102                 FW_FEATURE_PS3_ALWAYS &
 103 #endif
 104 #ifdef CONFIG_PPC_NATIVE
 105                 FW_FEATURE_NATIVE_ALWAYS &
 106 #endif
 107                 FW_FEATURE_POSSIBLE,
 108
 109 #else /* CONFIG_PPC64 */
 110         FW_FEATURE_POSSIBLE = 0,
 111         FW_FEATURE_ALWAYS = 0,
 112 #endif
 113 };
 114
 115 /* This is used to identify firmware features which are available
 116  * to the kernel.
 117  */
 118 extern unsigned long    powerpc_firmware_features;
 119
 120 #define firmware_has_feature(feature)                                   \
 121         ((FW_FEATURE_ALWAYS & (feature)) ||                             \
 122                 (FW_FEATURE_POSSIBLE & powerpc_firmware_features & (feature)))
 123
 124 extern void system_reset_fwnmi(void);
 125 extern void machine_check_fwnmi(void);
 126
 127 /* This is true if we are using the firmware NMI handler (typically LPAR) */
 128 extern int fwnmi_active;
 129
 130 extern unsigned int __start___fw_ftr_fixup, __stop___fw_ftr_fixup;
 131
 132 #ifdef CONFIG_PPC_PSERIES
 133 void pseries_probe_fw_features(void);
 134 #else
 135 static inline void pseries_probe_fw_features(void) { };
 136 #endif
 137
 138 #endif /* __ASSEMBLY__ */
 139 #endif /* __KERNEL__ */
 140 #endif /* __ASM_POWERPC_FIRMWARE_H */