LXR linux/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
  57enum {
  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 */
 118extern 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
 124extern void system_reset_fwnmi(void);
 125extern void machine_check_fwnmi(void);
 126
 127/* This is true if we are using the firmware NMI handler (typically LPAR) */
 128extern int fwnmi_active;
 129
 130extern unsigned int __start___fw_ftr_fixup, __stop___fw_ftr_fixup;
 131
 132#ifdef CONFIG_PPC_PSERIES
 133void pseries_probe_fw_features(void);
 134#else
 135static inline void pseries_probe_fw_features(void) { };
 136#endif
 137
 138#endif /* __ASSEMBLY__ */
 139#endif /* __KERNEL__ */
 140#endif /* __ASM_POWERPC_FIRMWARE_H */
 141