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#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
45enum {
46#ifdef CONFIG_PPC64
47 FW_FEATURE_PSERIES_POSSIBLE = FW_FEATURE_PFT | FW_FEATURE_TCE |
48 FW_FEATURE_SPRG0 | FW_FEATURE_DABR | FW_FEATURE_COPY |
49 FW_FEATURE_ASR | FW_FEATURE_DEBUG | FW_FEATURE_TERM |
50 FW_FEATURE_PERF | FW_FEATURE_DUMP | FW_FEATURE_INTERRUPT |
51 FW_FEATURE_MIGRATE | FW_FEATURE_PERFMON | FW_FEATURE_CRQ |
52 FW_FEATURE_VIO | FW_FEATURE_RDMA | FW_FEATURE_LLAN |
53 FW_FEATURE_BULK | FW_FEATURE_XDABR | FW_FEATURE_MULTITCE |
54 FW_FEATURE_SPLPAR,
55 FW_FEATURE_PSERIES_ALWAYS = 0,
56 FW_FEATURE_ISERIES_POSSIBLE = FW_FEATURE_ISERIES,
57 FW_FEATURE_ISERIES_ALWAYS = FW_FEATURE_ISERIES,
58 FW_FEATURE_POSSIBLE =
59#ifdef CONFIG_PPC_PSERIES
60 FW_FEATURE_PSERIES_POSSIBLE |
61#endif
62#ifdef CONFIG_PPC_ISERIES
63 FW_FEATURE_ISERIES_POSSIBLE |
64#endif
65 0,
66 FW_FEATURE_ALWAYS =
67#ifdef CONFIG_PPC_PSERIES
68 FW_FEATURE_PSERIES_ALWAYS &
69#endif
70#ifdef CONFIG_PPC_ISERIES
71 FW_FEATURE_ISERIES_ALWAYS &
72#endif
73 FW_FEATURE_POSSIBLE,
74
75#else /* CONFIG_PPC64 */
76 FW_FEATURE_POSSIBLE = 0,
77 FW_FEATURE_ALWAYS = 0,
78#endif
79};
80
81/* This is used to identify firmware features which are available
82 * to the kernel.
83 */
84extern unsigned long ppc64_firmware_features;
85
86static inline unsigned long firmware_has_feature(unsigned long feature)
87{
88 return (FW_FEATURE_ALWAYS & feature) ||
89 (FW_FEATURE_POSSIBLE & ppc64_firmware_features & feature);
90}
91
92#ifdef CONFIG_PPC_PSERIES
93typedef struct {
94 unsigned long val;
95 char * name;
96} firmware_feature_t;
97
98extern firmware_feature_t firmware_features_table[];
99#endif
100
101#endif /* __ASSEMBLY__ */
102#endif /* __KERNEL__ */
103#endif /* __ASM_POWERPC_FIRMWARE_H */