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_MULTITCE	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 /* Free				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_OPALv2	ASM_CONST(0x0000000020000000)
51 #define FW_FEATURE_SET_MODE	ASM_CONST(0x0000000040000000)
52 #define FW_FEATURE_BEST_ENERGY	ASM_CONST(0x0000000080000000)
53 #define FW_FEATURE_TYPE1_AFFINITY ASM_CONST(0x0000000100000000)
54 #define FW_FEATURE_PRRN		ASM_CONST(0x0000000200000000)
55 #define FW_FEATURE_OPALv3	ASM_CONST(0x0000000400000000)
56 
57 #ifndef __ASSEMBLY__
58 
59 enum {
60 #ifdef CONFIG_PPC64
61 	FW_FEATURE_PSERIES_POSSIBLE = FW_FEATURE_PFT | FW_FEATURE_TCE |
62 		FW_FEATURE_SPRG0 | FW_FEATURE_DABR | FW_FEATURE_COPY |
63 		FW_FEATURE_ASR | FW_FEATURE_DEBUG | FW_FEATURE_TERM |
64 		FW_FEATURE_PERF | FW_FEATURE_DUMP | FW_FEATURE_INTERRUPT |
65 		FW_FEATURE_MIGRATE | FW_FEATURE_PERFMON | FW_FEATURE_CRQ |
66 		FW_FEATURE_VIO | FW_FEATURE_RDMA | FW_FEATURE_LLAN |
67 		FW_FEATURE_BULK_REMOVE | FW_FEATURE_XDABR |
68 		FW_FEATURE_MULTITCE | FW_FEATURE_SPLPAR | FW_FEATURE_LPAR |
69 		FW_FEATURE_CMO | FW_FEATURE_VPHN | FW_FEATURE_XCMO |
70 		FW_FEATURE_SET_MODE | FW_FEATURE_BEST_ENERGY |
71 		FW_FEATURE_TYPE1_AFFINITY | FW_FEATURE_PRRN,
72 	FW_FEATURE_PSERIES_ALWAYS = 0,
73 	FW_FEATURE_POWERNV_POSSIBLE = FW_FEATURE_OPAL | FW_FEATURE_OPALv2 |
74 		FW_FEATURE_OPALv3,
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 #endif /* __ASSEMBLY__ */
133 #endif /* __KERNEL__ */
134 #endif /* __ASM_POWERPC_FIRMWARE_H */
135