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_PUT_TCE_IND 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_FORM1_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 #define FW_FEATURE_STUFF_TCE ASM_CONST(0x0000008000000000) 55 #define FW_FEATURE_RPT_INVALIDATE ASM_CONST(0x0000010000000000) 56 #define FW_FEATURE_FORM2_AFFINITY ASM_CONST(0x0000020000000000) 57 #define FW_FEATURE_ENERGY_SCALE_INFO ASM_CONST(0x0000040000000000) 58 #define FW_FEATURE_WATCHDOG ASM_CONST(0x0000080000000000) 59 #define FW_FEATURE_PLPKS ASM_CONST(0x0000100000000000) 60 61 #ifndef __ASSEMBLY__ 62 63 enum { 64 #ifdef CONFIG_PPC64 65 FW_FEATURE_PSERIES_POSSIBLE = FW_FEATURE_PFT | FW_FEATURE_TCE | 66 FW_FEATURE_SPRG0 | FW_FEATURE_DABR | FW_FEATURE_COPY | 67 FW_FEATURE_ASR | FW_FEATURE_DEBUG | FW_FEATURE_TERM | 68 FW_FEATURE_PERF | FW_FEATURE_DUMP | FW_FEATURE_INTERRUPT | 69 FW_FEATURE_MIGRATE | FW_FEATURE_PERFMON | FW_FEATURE_CRQ | 70 FW_FEATURE_VIO | FW_FEATURE_RDMA | FW_FEATURE_LLAN | 71 FW_FEATURE_BULK_REMOVE | FW_FEATURE_XDABR | 72 FW_FEATURE_PUT_TCE_IND | FW_FEATURE_STUFF_TCE | 73 FW_FEATURE_SPLPAR | FW_FEATURE_LPAR | 74 FW_FEATURE_CMO | FW_FEATURE_VPHN | FW_FEATURE_XCMO | 75 FW_FEATURE_SET_MODE | FW_FEATURE_BEST_ENERGY | 76 FW_FEATURE_FORM1_AFFINITY | FW_FEATURE_PRRN | 77 FW_FEATURE_HPT_RESIZE | FW_FEATURE_DRMEM_V2 | 78 FW_FEATURE_DRC_INFO | FW_FEATURE_BLOCK_REMOVE | 79 FW_FEATURE_PAPR_SCM | FW_FEATURE_ULTRAVISOR | 80 FW_FEATURE_RPT_INVALIDATE | FW_FEATURE_FORM2_AFFINITY | 81 FW_FEATURE_ENERGY_SCALE_INFO | FW_FEATURE_WATCHDOG | 82 FW_FEATURE_PLPKS, 83 FW_FEATURE_PSERIES_ALWAYS = 0, 84 FW_FEATURE_POWERNV_POSSIBLE = FW_FEATURE_OPAL | FW_FEATURE_ULTRAVISOR, 85 FW_FEATURE_POWERNV_ALWAYS = 0, 86 FW_FEATURE_PS3_POSSIBLE = FW_FEATURE_LPAR | FW_FEATURE_PS3_LV1, 87 FW_FEATURE_PS3_ALWAYS = FW_FEATURE_LPAR | FW_FEATURE_PS3_LV1, 88 FW_FEATURE_NATIVE_POSSIBLE = 0, 89 FW_FEATURE_NATIVE_ALWAYS = 0, 90 FW_FEATURE_POSSIBLE = 91 #ifdef CONFIG_PPC_PSERIES 92 FW_FEATURE_PSERIES_POSSIBLE | 93 #endif 94 #ifdef CONFIG_PPC_POWERNV 95 FW_FEATURE_POWERNV_POSSIBLE | 96 #endif 97 #ifdef CONFIG_PPC_PS3 98 FW_FEATURE_PS3_POSSIBLE | 99 #endif 100 #ifdef CONFIG_PPC_HASH_MMU_NATIVE 101 FW_FEATURE_NATIVE_ALWAYS | 102 #endif 103 0, 104 FW_FEATURE_ALWAYS = 105 #ifdef CONFIG_PPC_PSERIES 106 FW_FEATURE_PSERIES_ALWAYS & 107 #endif 108 #ifdef CONFIG_PPC_POWERNV 109 FW_FEATURE_POWERNV_ALWAYS & 110 #endif 111 #ifdef CONFIG_PPC_PS3 112 FW_FEATURE_PS3_ALWAYS & 113 #endif 114 #ifdef CONFIG_PPC_HASH_MMU_NATIVE 115 FW_FEATURE_NATIVE_ALWAYS & 116 #endif 117 FW_FEATURE_POSSIBLE, 118 119 #else /* CONFIG_PPC64 */ 120 FW_FEATURE_POSSIBLE = 0, 121 FW_FEATURE_ALWAYS = 0, 122 #endif 123 }; 124 125 /* This is used to identify firmware features which are available 126 * to the kernel. 127 */ 128 extern unsigned long powerpc_firmware_features; 129 130 #define firmware_has_feature(feature) \ 131 ((FW_FEATURE_ALWAYS & (feature)) || \ 132 (FW_FEATURE_POSSIBLE & powerpc_firmware_features & (feature))) 133 134 extern void system_reset_fwnmi(void); 135 extern void machine_check_fwnmi(void); 136 137 /* This is true if we are using the firmware NMI handler (typically LPAR) */ 138 extern int fwnmi_active; 139 extern int ibm_nmi_interlock_token; 140 141 extern unsigned int __start___fw_ftr_fixup, __stop___fw_ftr_fixup; 142 143 #ifdef CONFIG_PPC_PSERIES 144 void pseries_probe_fw_features(void); 145 #else 146 static inline void pseries_probe_fw_features(void) { } 147 #endif 148 149 #endif /* __ASSEMBLY__ */ 150 #endif /* __KERNEL__ */ 151 #endif /* __ASM_POWERPC_FIRMWARE_H */ 152