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 #ifndef __ASSEMBLY__
  18
  19 /* firmware feature bitmask values */
  20 #define FIRMWARE_MAX_FEATURES 63
  21
  22 #define FW_FEATURE_PFT          (1UL<<0)
  23 #define FW_FEATURE_TCE          (1UL<<1)
  24 #define FW_FEATURE_SPRG0        (1UL<<2)
  25 #define FW_FEATURE_DABR         (1UL<<3)
  26 #define FW_FEATURE_COPY         (1UL<<4)
  27 #define FW_FEATURE_ASR          (1UL<<5)
  28 #define FW_FEATURE_DEBUG        (1UL<<6)
  29 #define FW_FEATURE_TERM         (1UL<<7)
  30 #define FW_FEATURE_PERF         (1UL<<8)
  31 #define FW_FEATURE_DUMP         (1UL<<9)
  32 #define FW_FEATURE_INTERRUPT    (1UL<<10)
  33 #define FW_FEATURE_MIGRATE      (1UL<<11)
  34 #define FW_FEATURE_PERFMON      (1UL<<12)
  35 #define FW_FEATURE_CRQ          (1UL<<13)
  36 #define FW_FEATURE_VIO          (1UL<<14)
  37 #define FW_FEATURE_RDMA         (1UL<<15)
  38 #define FW_FEATURE_LLAN         (1UL<<16)
  39 #define FW_FEATURE_BULK         (1UL<<17)
  40 #define FW_FEATURE_XDABR        (1UL<<18)
  41 #define FW_FEATURE_MULTITCE     (1UL<<19)
  42 #define FW_FEATURE_SPLPAR       (1UL<<20)
  43 #define FW_FEATURE_ISERIES      (1UL<<21)
  44 #define FW_FEATURE_LPAR         (1UL<<22)
  45
  46 enum {
  47 #ifdef CONFIG_PPC64
  48         FW_FEATURE_PSERIES_POSSIBLE = FW_FEATURE_PFT | FW_FEATURE_TCE |
  49                 FW_FEATURE_SPRG0 | FW_FEATURE_DABR | FW_FEATURE_COPY |
  50                 FW_FEATURE_ASR | FW_FEATURE_DEBUG | FW_FEATURE_TERM |
  51                 FW_FEATURE_PERF | FW_FEATURE_DUMP | FW_FEATURE_INTERRUPT |
  52                 FW_FEATURE_MIGRATE | FW_FEATURE_PERFMON | FW_FEATURE_CRQ |
  53                 FW_FEATURE_VIO | FW_FEATURE_RDMA | FW_FEATURE_LLAN |
  54                 FW_FEATURE_BULK | FW_FEATURE_XDABR | FW_FEATURE_MULTITCE |
  55                 FW_FEATURE_SPLPAR | FW_FEATURE_LPAR,
  56         FW_FEATURE_PSERIES_ALWAYS = 0,
  57         FW_FEATURE_ISERIES_POSSIBLE = FW_FEATURE_ISERIES | FW_FEATURE_LPAR,
  58         FW_FEATURE_ISERIES_ALWAYS = FW_FEATURE_ISERIES | FW_FEATURE_LPAR,
  59         FW_FEATURE_POSSIBLE =
  60 #ifdef CONFIG_PPC_PSERIES
  61                 FW_FEATURE_PSERIES_POSSIBLE |
  62 #endif
  63 #ifdef CONFIG_PPC_ISERIES
  64                 FW_FEATURE_ISERIES_POSSIBLE |
  65 #endif
  66                 0,
  67         FW_FEATURE_ALWAYS =
  68 #ifdef CONFIG_PPC_PSERIES
  69                 FW_FEATURE_PSERIES_ALWAYS &
  70 #endif
  71 #ifdef CONFIG_PPC_ISERIES
  72                 FW_FEATURE_ISERIES_ALWAYS &
  73 #endif
  74                 FW_FEATURE_POSSIBLE,
  75
  76 #else /* CONFIG_PPC64 */
  77         FW_FEATURE_POSSIBLE = 0,
  78         FW_FEATURE_ALWAYS = 0,
  79 #endif
  80 };
  81
  82 /* This is used to identify firmware features which are available
  83  * to the kernel.
  84  */
  85 extern unsigned long    powerpc_firmware_features;
  86
  87 #define firmware_has_feature(feature)                                   \
  88         ((FW_FEATURE_ALWAYS & (feature)) ||                             \
  89                 (FW_FEATURE_POSSIBLE & powerpc_firmware_features & (feature)))
  90
  91 extern void system_reset_fwnmi(void);
  92 extern void machine_check_fwnmi(void);
  93
  94 /* This is true if we are using the firmware NMI handler (typically LPAR) */
  95 extern int fwnmi_active;
  96
  97 #endif /* __ASSEMBLY__ */
  98 #endif /* __KERNEL__ */
  99 #endif /* __ASM_POWERPC_FIRMWARE_H */