Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
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-const.h>
18
19/* firmware feature bitmask values */
20
21#define FW_FEATURE_PFT ASM_CONST(0x0000000000000001)
22#define FW_FEATURE_TCE ASM_CONST(0x0000000000000002)
23#define FW_FEATURE_SPRG0 ASM_CONST(0x0000000000000004)
24#define FW_FEATURE_DABR ASM_CONST(0x0000000000000008)
25#define FW_FEATURE_COPY ASM_CONST(0x0000000000000010)
26#define FW_FEATURE_ASR ASM_CONST(0x0000000000000020)
27#define FW_FEATURE_DEBUG ASM_CONST(0x0000000000000040)
28#define FW_FEATURE_TERM ASM_CONST(0x0000000000000080)
29#define FW_FEATURE_PERF ASM_CONST(0x0000000000000100)
30#define FW_FEATURE_DUMP ASM_CONST(0x0000000000000200)
31#define FW_FEATURE_INTERRUPT ASM_CONST(0x0000000000000400)
32#define FW_FEATURE_MIGRATE ASM_CONST(0x0000000000000800)
33#define FW_FEATURE_PERFMON ASM_CONST(0x0000000000001000)
34#define FW_FEATURE_CRQ ASM_CONST(0x0000000000002000)
35#define FW_FEATURE_VIO ASM_CONST(0x0000000000004000)
36#define FW_FEATURE_RDMA ASM_CONST(0x0000000000008000)
37#define FW_FEATURE_LLAN ASM_CONST(0x0000000000010000)
38#define FW_FEATURE_BULK_REMOVE ASM_CONST(0x0000000000020000)
39#define FW_FEATURE_XDABR ASM_CONST(0x0000000000040000)
40#define FW_FEATURE_MULTITCE ASM_CONST(0x0000000000080000)
41#define FW_FEATURE_SPLPAR ASM_CONST(0x0000000000100000)
42#define FW_FEATURE_LPAR ASM_CONST(0x0000000000400000)
43#define FW_FEATURE_PS3_LV1 ASM_CONST(0x0000000000800000)
44#define FW_FEATURE_HPT_RESIZE ASM_CONST(0x0000000001000000)
45#define FW_FEATURE_CMO ASM_CONST(0x0000000002000000)
46#define FW_FEATURE_VPHN ASM_CONST(0x0000000004000000)
47#define FW_FEATURE_XCMO ASM_CONST(0x0000000008000000)
48#define FW_FEATURE_OPAL ASM_CONST(0x0000000010000000)
49#define FW_FEATURE_SET_MODE ASM_CONST(0x0000000040000000)
50#define FW_FEATURE_BEST_ENERGY ASM_CONST(0x0000000080000000)
51#define FW_FEATURE_TYPE1_AFFINITY ASM_CONST(0x0000000100000000)
52#define FW_FEATURE_PRRN ASM_CONST(0x0000000200000000)
53#define FW_FEATURE_DRMEM_V2 ASM_CONST(0x0000000400000000)
54#define FW_FEATURE_DRC_INFO ASM_CONST(0x0000000800000000)
55#define FW_FEATURE_BLOCK_REMOVE ASM_CONST(0x0000001000000000)
56#define FW_FEATURE_PAPR_SCM ASM_CONST(0x0000002000000000)
57
58#ifndef __ASSEMBLY__
59
60enum {
61#ifdef CONFIG_PPC64
62 FW_FEATURE_PSERIES_POSSIBLE = FW_FEATURE_PFT | FW_FEATURE_TCE |
63 FW_FEATURE_SPRG0 | FW_FEATURE_DABR | FW_FEATURE_COPY |
64 FW_FEATURE_ASR | FW_FEATURE_DEBUG | FW_FEATURE_TERM |
65 FW_FEATURE_PERF | FW_FEATURE_DUMP | FW_FEATURE_INTERRUPT |
66 FW_FEATURE_MIGRATE | FW_FEATURE_PERFMON | FW_FEATURE_CRQ |
67 FW_FEATURE_VIO | FW_FEATURE_RDMA | FW_FEATURE_LLAN |
68 FW_FEATURE_BULK_REMOVE | FW_FEATURE_XDABR |
69 FW_FEATURE_MULTITCE | FW_FEATURE_SPLPAR | FW_FEATURE_LPAR |
70 FW_FEATURE_CMO | FW_FEATURE_VPHN | FW_FEATURE_XCMO |
71 FW_FEATURE_SET_MODE | FW_FEATURE_BEST_ENERGY |
72 FW_FEATURE_TYPE1_AFFINITY | FW_FEATURE_PRRN |
73 FW_FEATURE_HPT_RESIZE | FW_FEATURE_DRMEM_V2 |
74 FW_FEATURE_DRC_INFO | FW_FEATURE_BLOCK_REMOVE |
75 FW_FEATURE_PAPR_SCM,
76 FW_FEATURE_PSERIES_ALWAYS = 0,
77 FW_FEATURE_POWERNV_POSSIBLE = FW_FEATURE_OPAL,
78 FW_FEATURE_POWERNV_ALWAYS = 0,
79 FW_FEATURE_PS3_POSSIBLE = FW_FEATURE_LPAR | FW_FEATURE_PS3_LV1,
80 FW_FEATURE_PS3_ALWAYS = FW_FEATURE_LPAR | FW_FEATURE_PS3_LV1,
81 FW_FEATURE_NATIVE_POSSIBLE = 0,
82 FW_FEATURE_NATIVE_ALWAYS = 0,
83 FW_FEATURE_POSSIBLE =
84#ifdef CONFIG_PPC_PSERIES
85 FW_FEATURE_PSERIES_POSSIBLE |
86#endif
87#ifdef CONFIG_PPC_POWERNV
88 FW_FEATURE_POWERNV_POSSIBLE |
89#endif
90#ifdef CONFIG_PPC_PS3
91 FW_FEATURE_PS3_POSSIBLE |
92#endif
93#ifdef CONFIG_PPC_NATIVE
94 FW_FEATURE_NATIVE_ALWAYS |
95#endif
96 0,
97 FW_FEATURE_ALWAYS =
98#ifdef CONFIG_PPC_PSERIES
99 FW_FEATURE_PSERIES_ALWAYS &
100#endif
101#ifdef CONFIG_PPC_POWERNV
102 FW_FEATURE_POWERNV_ALWAYS &
103#endif
104#ifdef CONFIG_PPC_PS3
105 FW_FEATURE_PS3_ALWAYS &
106#endif
107#ifdef CONFIG_PPC_NATIVE
108 FW_FEATURE_NATIVE_ALWAYS &
109#endif
110 FW_FEATURE_POSSIBLE,
111
112#else /* CONFIG_PPC64 */
113 FW_FEATURE_POSSIBLE = 0,
114 FW_FEATURE_ALWAYS = 0,
115#endif
116};
117
118/* This is used to identify firmware features which are available
119 * to the kernel.
120 */
121extern unsigned long powerpc_firmware_features;
122
123#define firmware_has_feature(feature) \
124 ((FW_FEATURE_ALWAYS & (feature)) || \
125 (FW_FEATURE_POSSIBLE & powerpc_firmware_features & (feature)))
126
127extern void system_reset_fwnmi(void);
128extern void machine_check_fwnmi(void);
129
130/* This is true if we are using the firmware NMI handler (typically LPAR) */
131extern int fwnmi_active;
132
133extern unsigned int __start___fw_ftr_fixup, __stop___fw_ftr_fixup;
134
135#ifdef CONFIG_PPC_PSERIES
136void pseries_probe_fw_features(void);
137#else
138static inline void pseries_probe_fw_features(void) { };
139#endif
140
141#endif /* __ASSEMBLY__ */
142#endif /* __KERNEL__ */
143#endif /* __ASM_POWERPC_FIRMWARE_H */