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
pseries_probe_fw_features(void)135 static inline void pseries_probe_fw_features(void) { };
136 #endif
137
138 #endif /* __ASSEMBLY__ */
139 #endif /* __KERNEL__ */
140 #endif /* __ASM_POWERPC_FIRMWARE_H */
141
