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Stephen Rothwell1ababe12005-08-03 14:35:25 +10001/*
Stephen Rothwell1ababe12005-08-03 14:35:25 +10002 * 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 */
Michael Ellerman21f35f22005-10-24 15:07:29 +100012#ifndef __ASM_POWERPC_FIRMWARE_H
13#define __ASM_POWERPC_FIRMWARE_H
Stephen Rothwell1ababe12005-08-03 14:35:25 +100014
15#ifdef __KERNEL__
16
Stephen Rothwell3f639ee2006-09-25 18:19:00 +100017#include <asm/asm-compat.h>
Stephen Rothwell1ababe12005-08-03 14:35:25 +100018
19/* firmware feature bitmask values */
20#define FIRMWARE_MAX_FEATURES 63
21
Stephen Rothwell3f639ee2006-09-25 18:19:00 +100022#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 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_ISERIES ASM_CONST(0x0000000000200000)
44#define FW_FEATURE_LPAR ASM_CONST(0x0000000000400000)
Arnd Bergmanne22ba7e2006-11-27 19:18:57 +010045#define FW_FEATURE_PS3_LV1 ASM_CONST(0x0000000000800000)
Ishizaki Kouc347b792007-02-02 16:47:17 +090046#define FW_FEATURE_BEAT ASM_CONST(0x0000000001000000)
Paul Mackerras12e86f92007-02-08 15:02:35 +110047#define FW_FEATURE_BULK_REMOVE ASM_CONST(0x0000000002000000)
Stephen Rothwell3f639ee2006-09-25 18:19:00 +100048
49#ifndef __ASSEMBLY__
Stephen Rothwell1ababe12005-08-03 14:35:25 +100050
Stephen Rothwell8d15a3e2005-08-03 14:40:16 +100051enum {
Paul Mackerras799d6042005-11-10 13:37:51 +110052#ifdef CONFIG_PPC64
Stephen Rothwellaed31352005-08-03 14:43:21 +100053 FW_FEATURE_PSERIES_POSSIBLE = FW_FEATURE_PFT | FW_FEATURE_TCE |
Stephen Rothwell8d15a3e2005-08-03 14:40:16 +100054 FW_FEATURE_SPRG0 | FW_FEATURE_DABR | FW_FEATURE_COPY |
55 FW_FEATURE_ASR | FW_FEATURE_DEBUG | FW_FEATURE_TERM |
56 FW_FEATURE_PERF | FW_FEATURE_DUMP | FW_FEATURE_INTERRUPT |
57 FW_FEATURE_MIGRATE | FW_FEATURE_PERFMON | FW_FEATURE_CRQ |
58 FW_FEATURE_VIO | FW_FEATURE_RDMA | FW_FEATURE_LLAN |
59 FW_FEATURE_BULK | FW_FEATURE_XDABR | FW_FEATURE_MULTITCE |
Michael Ellerman57cfb812006-03-21 20:45:59 +110060 FW_FEATURE_SPLPAR | FW_FEATURE_LPAR,
Stephen Rothwellaed31352005-08-03 14:43:21 +100061 FW_FEATURE_PSERIES_ALWAYS = 0,
Michael Ellerman57cfb812006-03-21 20:45:59 +110062 FW_FEATURE_ISERIES_POSSIBLE = FW_FEATURE_ISERIES | FW_FEATURE_LPAR,
63 FW_FEATURE_ISERIES_ALWAYS = FW_FEATURE_ISERIES | FW_FEATURE_LPAR,
Arnd Bergmanne22ba7e2006-11-27 19:18:57 +010064 FW_FEATURE_PS3_POSSIBLE = FW_FEATURE_LPAR | FW_FEATURE_PS3_LV1,
65 FW_FEATURE_PS3_ALWAYS = FW_FEATURE_LPAR | FW_FEATURE_PS3_LV1,
Ishizaki Kouc347b792007-02-02 16:47:17 +090066 FW_FEATURE_CELLEB_POSSIBLE = FW_FEATURE_LPAR | FW_FEATURE_BEAT,
Ishizaki Kou9858ee82007-12-04 19:38:24 +110067 FW_FEATURE_CELLEB_ALWAYS = 0,
Arnd Bergmanne22ba7e2006-11-27 19:18:57 +010068 FW_FEATURE_NATIVE_POSSIBLE = 0,
69 FW_FEATURE_NATIVE_ALWAYS = 0,
Stephen Rothwell8d15a3e2005-08-03 14:40:16 +100070 FW_FEATURE_POSSIBLE =
71#ifdef CONFIG_PPC_PSERIES
Stephen Rothwellaed31352005-08-03 14:43:21 +100072 FW_FEATURE_PSERIES_POSSIBLE |
73#endif
74#ifdef CONFIG_PPC_ISERIES
75 FW_FEATURE_ISERIES_POSSIBLE |
Stephen Rothwell8d15a3e2005-08-03 14:40:16 +100076#endif
Geert Uytterhoeveneb30c722006-11-27 19:18:56 +010077#ifdef CONFIG_PPC_PS3
Geoff Levand82a527f02006-11-23 00:46:53 +010078 FW_FEATURE_PS3_POSSIBLE |
79#endif
Ishizaki Kouc347b792007-02-02 16:47:17 +090080#ifdef CONFIG_PPC_CELLEB
81 FW_FEATURE_CELLEB_POSSIBLE |
82#endif
Arnd Bergmanne22ba7e2006-11-27 19:18:57 +010083#ifdef CONFIG_PPC_NATIVE
84 FW_FEATURE_NATIVE_ALWAYS |
85#endif
Stephen Rothwell8d15a3e2005-08-03 14:40:16 +100086 0,
Stephen Rothwellaed31352005-08-03 14:43:21 +100087 FW_FEATURE_ALWAYS =
88#ifdef CONFIG_PPC_PSERIES
89 FW_FEATURE_PSERIES_ALWAYS &
90#endif
91#ifdef CONFIG_PPC_ISERIES
92 FW_FEATURE_ISERIES_ALWAYS &
93#endif
Geert Uytterhoeveneb30c722006-11-27 19:18:56 +010094#ifdef CONFIG_PPC_PS3
Geoff Levand82a527f02006-11-23 00:46:53 +010095 FW_FEATURE_PS3_ALWAYS &
96#endif
Ishizaki Kouc347b792007-02-02 16:47:17 +090097#ifdef CONFIG_PPC_CELLEB
98 FW_FEATURE_CELLEB_ALWAYS &
99#endif
Arnd Bergmanne22ba7e2006-11-27 19:18:57 +0100100#ifdef CONFIG_PPC_NATIVE
101 FW_FEATURE_NATIVE_ALWAYS &
102#endif
Stephen Rothwellaed31352005-08-03 14:43:21 +1000103 FW_FEATURE_POSSIBLE,
Paul Mackerras799d6042005-11-10 13:37:51 +1100104
105#else /* CONFIG_PPC64 */
106 FW_FEATURE_POSSIBLE = 0,
107 FW_FEATURE_ALWAYS = 0,
108#endif
Stephen Rothwell8d15a3e2005-08-03 14:40:16 +1000109};
110
Stephen Rothwell1ababe12005-08-03 14:35:25 +1000111/* This is used to identify firmware features which are available
112 * to the kernel.
113 */
Michael Ellermand0160bf2006-03-27 14:26:25 +1100114extern unsigned long powerpc_firmware_features;
Stephen Rothwell1ababe12005-08-03 14:35:25 +1000115
Michael Ellermandd4d7bf2006-03-23 23:33:03 +1100116#define firmware_has_feature(feature) \
117 ((FW_FEATURE_ALWAYS & (feature)) || \
Michael Ellermand0160bf2006-03-27 14:26:25 +1100118 (FW_FEATURE_POSSIBLE & powerpc_firmware_features & (feature)))
Stephen Rothwell1ababe12005-08-03 14:35:25 +1000119
Michael Ellerman8c4f1f22005-12-04 18:39:33 +1100120extern void system_reset_fwnmi(void);
121extern void machine_check_fwnmi(void);
122
123/* This is true if we are using the firmware NMI handler (typically LPAR) */
124extern int fwnmi_active;
125
Benjamin Herrenschmidt42c4aaa2006-10-24 16:42:40 +1000126extern unsigned int __start___fw_ftr_fixup, __stop___fw_ftr_fixup;
127
Stephen Rothwell3f639ee2006-09-25 18:19:00 +1000128#else /* __ASSEMBLY__ */
129
Benjamin Herrenschmidt0909c8c2006-10-20 11:47:18 +1000130#define BEGIN_FW_FTR_SECTION_NESTED(label) label:
131#define BEGIN_FW_FTR_SECTION BEGIN_FW_FTR_SECTION_NESTED(97)
132#define END_FW_FTR_SECTION_NESTED(msk, val, label) \
133 MAKE_FTR_SECTION_ENTRY(msk, val, label, __fw_ftr_fixup)
Stephen Rothwell3f639ee2006-09-25 18:19:00 +1000134#define END_FW_FTR_SECTION(msk, val) \
Benjamin Herrenschmidt0909c8c2006-10-20 11:47:18 +1000135 END_FW_FTR_SECTION_NESTED(msk, val, 97)
Stephen Rothwell3f639ee2006-09-25 18:19:00 +1000136
137#define END_FW_FTR_SECTION_IFSET(msk) END_FW_FTR_SECTION((msk), (msk))
138#define END_FW_FTR_SECTION_IFCLR(msk) END_FW_FTR_SECTION((msk), 0)
139
Stephen Rothwell1ababe12005-08-03 14:35:25 +1000140#endif /* __ASSEMBLY__ */
141#endif /* __KERNEL__ */
Michael Ellerman21f35f22005-10-24 15:07:29 +1000142#endif /* __ASM_POWERPC_FIRMWARE_H */