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#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
46enum {
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 */
85extern unsigned long powerpc_firmware_features;
86
87#define firmware_has_feature(feature) \
88 ((FW_FEATURE_ALWAYS & (feature)) || \
89 (FW_FEATURE_POSSIBLE & powerpc_firmware_features & (feature)))
90
91extern void system_reset_fwnmi(void);
92extern void machine_check_fwnmi(void);
93
94/* This is true if we are using the firmware NMI handler (typically LPAR) */
95extern int fwnmi_active;
96
97#endif /* __ASSEMBLY__ */
98#endif /* __KERNEL__ */
99#endif /* __ASM_POWERPC_FIRMWARE_H */