tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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#define FIRMWARE_MAX_FEATURES 63
22
23#define FW_FEATURE_PFT ASM_CONST(0x0000000000000001)
24#define FW_FEATURE_TCE ASM_CONST(0x0000000000000002)
25#define FW_FEATURE_SPRG0 ASM_CONST(0x0000000000000004)
26#define FW_FEATURE_DABR ASM_CONST(0x0000000000000008)
27#define FW_FEATURE_COPY ASM_CONST(0x0000000000000010)
28#define FW_FEATURE_ASR ASM_CONST(0x0000000000000020)
29#define FW_FEATURE_DEBUG ASM_CONST(0x0000000000000040)
30#define FW_FEATURE_TERM ASM_CONST(0x0000000000000080)
31#define FW_FEATURE_PERF ASM_CONST(0x0000000000000100)
32#define FW_FEATURE_DUMP ASM_CONST(0x0000000000000200)
33#define FW_FEATURE_INTERRUPT ASM_CONST(0x0000000000000400)
34#define FW_FEATURE_MIGRATE ASM_CONST(0x0000000000000800)
35#define FW_FEATURE_PERFMON ASM_CONST(0x0000000000001000)
36#define FW_FEATURE_CRQ ASM_CONST(0x0000000000002000)
37#define FW_FEATURE_VIO ASM_CONST(0x0000000000004000)
38#define FW_FEATURE_RDMA ASM_CONST(0x0000000000008000)
39#define FW_FEATURE_LLAN ASM_CONST(0x0000000000010000)
40#define FW_FEATURE_BULK_REMOVE ASM_CONST(0x0000000000020000)
41#define FW_FEATURE_XDABR ASM_CONST(0x0000000000040000)
42#define FW_FEATURE_MULTITCE ASM_CONST(0x0000000000080000)
43#define FW_FEATURE_SPLPAR ASM_CONST(0x0000000000100000)
44#define FW_FEATURE_LPAR ASM_CONST(0x0000000000400000)
45#define FW_FEATURE_PS3_LV1 ASM_CONST(0x0000000000800000)
46#define FW_FEATURE_BEAT ASM_CONST(0x0000000001000000)
47#define FW_FEATURE_CMO ASM_CONST(0x0000000002000000)
48#define FW_FEATURE_VPHN ASM_CONST(0x0000000004000000)
49#define FW_FEATURE_XCMO ASM_CONST(0x0000000008000000)
50#define FW_FEATURE_OPAL ASM_CONST(0x0000000010000000)
51#define FW_FEATURE_OPALv2 ASM_CONST(0x0000000020000000)
52#define FW_FEATURE_SET_MODE ASM_CONST(0x0000000040000000)
53#define FW_FEATURE_BEST_ENERGY ASM_CONST(0x0000000080000000)
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_PSERIES_ALWAYS = 0,
70 FW_FEATURE_POWERNV_POSSIBLE = FW_FEATURE_OPAL | FW_FEATURE_OPALv2,
71 FW_FEATURE_POWERNV_ALWAYS = 0,
72 FW_FEATURE_PS3_POSSIBLE = FW_FEATURE_LPAR | FW_FEATURE_PS3_LV1,
73 FW_FEATURE_PS3_ALWAYS = FW_FEATURE_LPAR | FW_FEATURE_PS3_LV1,
74 FW_FEATURE_CELLEB_POSSIBLE = FW_FEATURE_LPAR | FW_FEATURE_BEAT,
75 FW_FEATURE_CELLEB_ALWAYS = 0,
76 FW_FEATURE_NATIVE_POSSIBLE = 0,
77 FW_FEATURE_NATIVE_ALWAYS = 0,
78 FW_FEATURE_POSSIBLE =
79#ifdef CONFIG_PPC_PSERIES
80 FW_FEATURE_PSERIES_POSSIBLE |
81#endif
82#ifdef CONFIG_PPC_POWERNV
83 FW_FEATURE_POWERNV_POSSIBLE |
84#endif
85#ifdef CONFIG_PPC_PS3
86 FW_FEATURE_PS3_POSSIBLE |
87#endif
88#ifdef CONFIG_PPC_CELLEB
89 FW_FEATURE_CELLEB_POSSIBLE |
90#endif
91#ifdef CONFIG_PPC_NATIVE
92 FW_FEATURE_NATIVE_ALWAYS |
93#endif
94 0,
95 FW_FEATURE_ALWAYS =
96#ifdef CONFIG_PPC_PSERIES
97 FW_FEATURE_PSERIES_ALWAYS &
98#endif
99#ifdef CONFIG_PPC_POWERNV
100 FW_FEATURE_POWERNV_ALWAYS &
101#endif
102#ifdef CONFIG_PPC_PS3
103 FW_FEATURE_PS3_ALWAYS &
104#endif
105#ifdef CONFIG_PPC_CELLEB
106 FW_FEATURE_CELLEB_ALWAYS &
107#endif
108#ifdef CONFIG_PPC_NATIVE
109 FW_FEATURE_NATIVE_ALWAYS &
110#endif
111 FW_FEATURE_POSSIBLE,
112
113#else /* CONFIG_PPC64 */
114 FW_FEATURE_POSSIBLE = 0,
115 FW_FEATURE_ALWAYS = 0,
116#endif
117};
118
119/* This is used to identify firmware features which are available
120 * to the kernel.
121 */
122extern unsigned long powerpc_firmware_features;
123
124#define firmware_has_feature(feature) \
125 ((FW_FEATURE_ALWAYS & (feature)) || \
126 (FW_FEATURE_POSSIBLE & powerpc_firmware_features & (feature)))
127
128extern void system_reset_fwnmi(void);
129extern void machine_check_fwnmi(void);
130
131/* This is true if we are using the firmware NMI handler (typically LPAR) */
132extern int fwnmi_active;
133
134extern unsigned int __start___fw_ftr_fixup, __stop___fw_ftr_fixup;
135
136#endif /* __ASSEMBLY__ */
137#endif /* __KERNEL__ */
138#endif /* __ASM_POWERPC_FIRMWARE_H */