LXR linux/arch/powerpc/include/asm/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#include <asm/feature-fixups.h>
  19
  20/* firmware feature bitmask values */
  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_REMOVE  ASM_CONST(0x0000000000020000)
  40#define FW_FEATURE_XDABR        ASM_CONST(0x0000000000040000)
  41#define FW_FEATURE_PUT_TCE_IND  ASM_CONST(0x0000000000080000)
  42#define FW_FEATURE_SPLPAR       ASM_CONST(0x0000000000100000)
  43#define FW_FEATURE_LPAR         ASM_CONST(0x0000000000400000)
  44#define FW_FEATURE_PS3_LV1      ASM_CONST(0x0000000000800000)
  45#define FW_FEATURE_HPT_RESIZE   ASM_CONST(0x0000000001000000)
  46#define FW_FEATURE_CMO          ASM_CONST(0x0000000002000000)
  47#define FW_FEATURE_VPHN         ASM_CONST(0x0000000004000000)
  48#define FW_FEATURE_XCMO         ASM_CONST(0x0000000008000000)
  49#define FW_FEATURE_OPAL         ASM_CONST(0x0000000010000000)
  50#define FW_FEATURE_SET_MODE     ASM_CONST(0x0000000040000000)
  51#define FW_FEATURE_BEST_ENERGY  ASM_CONST(0x0000000080000000)
  52#define FW_FEATURE_TYPE1_AFFINITY ASM_CONST(0x0000000100000000)
  53#define FW_FEATURE_PRRN         ASM_CONST(0x0000000200000000)
  54#define FW_FEATURE_DRMEM_V2     ASM_CONST(0x0000000400000000)
  55#define FW_FEATURE_DRC_INFO     ASM_CONST(0x0000000800000000)
  56#define FW_FEATURE_BLOCK_REMOVE ASM_CONST(0x0000001000000000)
  57#define FW_FEATURE_PAPR_SCM     ASM_CONST(0x0000002000000000)
  58#define FW_FEATURE_ULTRAVISOR   ASM_CONST(0x0000004000000000)
  59#define FW_FEATURE_STUFF_TCE    ASM_CONST(0x0000008000000000)
  60#define FW_FEATURE_RPT_INVALIDATE ASM_CONST(0x0000010000000000)
  61
  62#ifndef __ASSEMBLY__
  63
  64enum {
  65#ifdef CONFIG_PPC64
  66        FW_FEATURE_PSERIES_POSSIBLE = FW_FEATURE_PFT | FW_FEATURE_TCE |
  67                FW_FEATURE_SPRG0 | FW_FEATURE_DABR | FW_FEATURE_COPY |
  68                FW_FEATURE_ASR | FW_FEATURE_DEBUG | FW_FEATURE_TERM |
  69                FW_FEATURE_PERF | FW_FEATURE_DUMP | FW_FEATURE_INTERRUPT |
  70                FW_FEATURE_MIGRATE | FW_FEATURE_PERFMON | FW_FEATURE_CRQ |
  71                FW_FEATURE_VIO | FW_FEATURE_RDMA | FW_FEATURE_LLAN |
  72                FW_FEATURE_BULK_REMOVE | FW_FEATURE_XDABR |
  73                FW_FEATURE_PUT_TCE_IND | FW_FEATURE_STUFF_TCE |
  74                FW_FEATURE_SPLPAR | FW_FEATURE_LPAR |
  75                FW_FEATURE_CMO | FW_FEATURE_VPHN | FW_FEATURE_XCMO |
  76                FW_FEATURE_SET_MODE | FW_FEATURE_BEST_ENERGY |
  77                FW_FEATURE_TYPE1_AFFINITY | FW_FEATURE_PRRN |
  78                FW_FEATURE_HPT_RESIZE | FW_FEATURE_DRMEM_V2 |
  79                FW_FEATURE_DRC_INFO | FW_FEATURE_BLOCK_REMOVE |
  80                FW_FEATURE_PAPR_SCM | FW_FEATURE_ULTRAVISOR |
  81                FW_FEATURE_RPT_INVALIDATE,
  82        FW_FEATURE_PSERIES_ALWAYS = 0,
  83        FW_FEATURE_POWERNV_POSSIBLE = FW_FEATURE_OPAL | FW_FEATURE_ULTRAVISOR,
  84        FW_FEATURE_POWERNV_ALWAYS = 0,
  85        FW_FEATURE_PS3_POSSIBLE = FW_FEATURE_LPAR | FW_FEATURE_PS3_LV1,
  86        FW_FEATURE_PS3_ALWAYS = FW_FEATURE_LPAR | FW_FEATURE_PS3_LV1,
  87        FW_FEATURE_NATIVE_POSSIBLE = 0,
  88        FW_FEATURE_NATIVE_ALWAYS = 0,
  89        FW_FEATURE_POSSIBLE =
  90#ifdef CONFIG_PPC_PSERIES
  91                FW_FEATURE_PSERIES_POSSIBLE |
  92#endif
  93#ifdef CONFIG_PPC_POWERNV
  94                FW_FEATURE_POWERNV_POSSIBLE |
  95#endif
  96#ifdef CONFIG_PPC_PS3
  97                FW_FEATURE_PS3_POSSIBLE |
  98#endif
  99#ifdef CONFIG_PPC_NATIVE
 100                FW_FEATURE_NATIVE_ALWAYS |
 101#endif
 102                0,
 103        FW_FEATURE_ALWAYS =
 104#ifdef CONFIG_PPC_PSERIES
 105                FW_FEATURE_PSERIES_ALWAYS &
 106#endif
 107#ifdef CONFIG_PPC_POWERNV
 108                FW_FEATURE_POWERNV_ALWAYS &
 109#endif
 110#ifdef CONFIG_PPC_PS3
 111                FW_FEATURE_PS3_ALWAYS &
 112#endif
 113#ifdef CONFIG_PPC_NATIVE
 114                FW_FEATURE_NATIVE_ALWAYS &
 115#endif
 116                FW_FEATURE_POSSIBLE,
 117
 118#else /* CONFIG_PPC64 */
 119        FW_FEATURE_POSSIBLE = 0,
 120        FW_FEATURE_ALWAYS = 0,
 121#endif
 122};
 123
 124/* This is used to identify firmware features which are available
 125 * to the kernel.
 126 */
 127extern unsigned long    powerpc_firmware_features;
 128
 129#define firmware_has_feature(feature)                                   \
 130        ((FW_FEATURE_ALWAYS & (feature)) ||                             \
 131                (FW_FEATURE_POSSIBLE & powerpc_firmware_features & (feature)))
 132
 133extern void system_reset_fwnmi(void);
 134extern void machine_check_fwnmi(void);
 135
 136/* This is true if we are using the firmware NMI handler (typically LPAR) */
 137extern int fwnmi_active;
 138
 139extern unsigned int __start___fw_ftr_fixup, __stop___fw_ftr_fixup;
 140
 141#if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_KVM_GUEST)
 142bool is_kvm_guest(void);
 143#else
 144static inline bool is_kvm_guest(void) { return false; }
 145#endif
 146
 147#ifdef CONFIG_PPC_PSERIES
 148void pseries_probe_fw_features(void);
 149#else
 150static inline void pseries_probe_fw_features(void) { };
 151#endif
 152
 153#endif /* __ASSEMBLY__ */
 154#endif /* __KERNEL__ */
 155#endif /* __ASM_POWERPC_FIRMWARE_H */
 156