[PATCH] powerpc: Replace platform_is_lpar() with a firmware feature
[linux-2.6.git] / include / asm-powerpc / 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 #ifndef __ASSEMBLY__
18
19 /* firmware feature bitmask values */
20 #define FIRMWARE_MAX_FEATURES 63
21
22 #define FW_FEATURE_PFT          (1UL<<0)
23 #define FW_FEATURE_TCE          (1UL<<1)
24 #define FW_FEATURE_SPRG0        (1UL<<2)
25 #define FW_FEATURE_DABR         (1UL<<3)
26 #define FW_FEATURE_COPY         (1UL<<4)
27 #define FW_FEATURE_ASR          (1UL<<5)
28 #define FW_FEATURE_DEBUG        (1UL<<6)
29 #define FW_FEATURE_TERM         (1UL<<7)
30 #define FW_FEATURE_PERF         (1UL<<8)
31 #define FW_FEATURE_DUMP         (1UL<<9)
32 #define FW_FEATURE_INTERRUPT    (1UL<<10)
33 #define FW_FEATURE_MIGRATE      (1UL<<11)
34 #define FW_FEATURE_PERFMON      (1UL<<12)
35 #define FW_FEATURE_CRQ          (1UL<<13)
36 #define FW_FEATURE_VIO          (1UL<<14)
37 #define FW_FEATURE_RDMA         (1UL<<15)
38 #define FW_FEATURE_LLAN         (1UL<<16)
39 #define FW_FEATURE_BULK         (1UL<<17)
40 #define FW_FEATURE_XDABR        (1UL<<18)
41 #define FW_FEATURE_MULTITCE     (1UL<<19)
42 #define FW_FEATURE_SPLPAR       (1UL<<20)
43 #define FW_FEATURE_ISERIES      (1UL<<21)
44 #define FW_FEATURE_LPAR         (1UL<<22)
45
46 enum {
47 #ifdef CONFIG_PPC64
48         FW_FEATURE_PSERIES_POSSIBLE = FW_FEATURE_PFT | FW_FEATURE_TCE |
49                 FW_FEATURE_SPRG0 | FW_FEATURE_DABR | FW_FEATURE_COPY |
50                 FW_FEATURE_ASR | FW_FEATURE_DEBUG | FW_FEATURE_TERM |
51                 FW_FEATURE_PERF | FW_FEATURE_DUMP | FW_FEATURE_INTERRUPT |
52                 FW_FEATURE_MIGRATE | FW_FEATURE_PERFMON | FW_FEATURE_CRQ |
53                 FW_FEATURE_VIO | FW_FEATURE_RDMA | FW_FEATURE_LLAN |
54                 FW_FEATURE_BULK | FW_FEATURE_XDABR | FW_FEATURE_MULTITCE |
55                 FW_FEATURE_SPLPAR | FW_FEATURE_LPAR,
56         FW_FEATURE_PSERIES_ALWAYS = 0,
57         FW_FEATURE_ISERIES_POSSIBLE = FW_FEATURE_ISERIES | FW_FEATURE_LPAR,
58         FW_FEATURE_ISERIES_ALWAYS = FW_FEATURE_ISERIES | FW_FEATURE_LPAR,
59         FW_FEATURE_POSSIBLE =
60 #ifdef CONFIG_PPC_PSERIES
61                 FW_FEATURE_PSERIES_POSSIBLE |
62 #endif
63 #ifdef CONFIG_PPC_ISERIES
64                 FW_FEATURE_ISERIES_POSSIBLE |
65 #endif
66                 0,
67         FW_FEATURE_ALWAYS =
68 #ifdef CONFIG_PPC_PSERIES
69                 FW_FEATURE_PSERIES_ALWAYS &
70 #endif
71 #ifdef CONFIG_PPC_ISERIES
72                 FW_FEATURE_ISERIES_ALWAYS &
73 #endif
74                 FW_FEATURE_POSSIBLE,
75
76 #else /* CONFIG_PPC64 */
77         FW_FEATURE_POSSIBLE = 0,
78         FW_FEATURE_ALWAYS = 0,
79 #endif
80 };
81
82 /* This is used to identify firmware features which are available
83  * to the kernel.
84  */
85 extern unsigned long    ppc64_firmware_features;
86
87 static inline unsigned long firmware_has_feature(unsigned long feature)
88 {
89         return (FW_FEATURE_ALWAYS & feature) ||
90                 (FW_FEATURE_POSSIBLE & ppc64_firmware_features & feature);
91 }
92
93 extern void system_reset_fwnmi(void);
94 extern void machine_check_fwnmi(void);
95
96 /* This is true if we are using the firmware NMI handler (typically LPAR) */
97 extern int fwnmi_active;
98
99 #endif /* __ASSEMBLY__ */
100 #endif /* __KERNEL__ */
101 #endif /* __ASM_POWERPC_FIRMWARE_H */