tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * Copyright (C) 2001 Ben. Herrenschmidt (benh@kernel.crashing.org)
4 *
5 * Modifications for ppc64:
6 * Copyright (C) 2003 Dave Engebretsen <engebret@us.ibm.com>
7 */
8#ifndef __ASM_POWERPC_FIRMWARE_H
9#define __ASM_POWERPC_FIRMWARE_H
10
11#ifdef __KERNEL__
12
13#include <asm/asm-const.h>
14
15/* firmware feature bitmask values */
16
17#define FW_FEATURE_PFT ASM_CONST(0x0000000000000001)
18#define FW_FEATURE_TCE ASM_CONST(0x0000000000000002)
19#define FW_FEATURE_SPRG0 ASM_CONST(0x0000000000000004)
20#define FW_FEATURE_DABR ASM_CONST(0x0000000000000008)
21#define FW_FEATURE_COPY ASM_CONST(0x0000000000000010)
22#define FW_FEATURE_ASR ASM_CONST(0x0000000000000020)
23#define FW_FEATURE_DEBUG ASM_CONST(0x0000000000000040)
24#define FW_FEATURE_TERM ASM_CONST(0x0000000000000080)
25#define FW_FEATURE_PERF ASM_CONST(0x0000000000000100)
26#define FW_FEATURE_DUMP ASM_CONST(0x0000000000000200)
27#define FW_FEATURE_INTERRUPT ASM_CONST(0x0000000000000400)
28#define FW_FEATURE_MIGRATE ASM_CONST(0x0000000000000800)
29#define FW_FEATURE_PERFMON ASM_CONST(0x0000000000001000)
30#define FW_FEATURE_CRQ ASM_CONST(0x0000000000002000)
31#define FW_FEATURE_VIO ASM_CONST(0x0000000000004000)
32#define FW_FEATURE_RDMA ASM_CONST(0x0000000000008000)
33#define FW_FEATURE_LLAN ASM_CONST(0x0000000000010000)
34#define FW_FEATURE_BULK_REMOVE ASM_CONST(0x0000000000020000)
35#define FW_FEATURE_XDABR ASM_CONST(0x0000000000040000)
36#define FW_FEATURE_PUT_TCE_IND ASM_CONST(0x0000000000080000)
37#define FW_FEATURE_SPLPAR ASM_CONST(0x0000000000100000)
38#define FW_FEATURE_LPAR ASM_CONST(0x0000000000400000)
39#define FW_FEATURE_PS3_LV1 ASM_CONST(0x0000000000800000)
40#define FW_FEATURE_HPT_RESIZE ASM_CONST(0x0000000001000000)
41#define FW_FEATURE_CMO ASM_CONST(0x0000000002000000)
42#define FW_FEATURE_VPHN ASM_CONST(0x0000000004000000)
43#define FW_FEATURE_XCMO ASM_CONST(0x0000000008000000)
44#define FW_FEATURE_OPAL ASM_CONST(0x0000000010000000)
45#define FW_FEATURE_SET_MODE ASM_CONST(0x0000000040000000)
46#define FW_FEATURE_BEST_ENERGY ASM_CONST(0x0000000080000000)
47#define FW_FEATURE_FORM1_AFFINITY ASM_CONST(0x0000000100000000)
48#define FW_FEATURE_PRRN ASM_CONST(0x0000000200000000)
49#define FW_FEATURE_DRMEM_V2 ASM_CONST(0x0000000400000000)
50#define FW_FEATURE_DRC_INFO ASM_CONST(0x0000000800000000)
51#define FW_FEATURE_BLOCK_REMOVE ASM_CONST(0x0000001000000000)
52#define FW_FEATURE_PAPR_SCM ASM_CONST(0x0000002000000000)
53#define FW_FEATURE_ULTRAVISOR ASM_CONST(0x0000004000000000)
54#define FW_FEATURE_STUFF_TCE ASM_CONST(0x0000008000000000)
55#define FW_FEATURE_RPT_INVALIDATE ASM_CONST(0x0000010000000000)
56#define FW_FEATURE_FORM2_AFFINITY ASM_CONST(0x0000020000000000)
57#define FW_FEATURE_ENERGY_SCALE_INFO ASM_CONST(0x0000040000000000)
58#define FW_FEATURE_WATCHDOG ASM_CONST(0x0000080000000000)
59
60#ifndef __ASSEMBLY__
61
62enum {
63#ifdef CONFIG_PPC64
64 FW_FEATURE_PSERIES_POSSIBLE = FW_FEATURE_PFT | FW_FEATURE_TCE |
65 FW_FEATURE_SPRG0 | FW_FEATURE_DABR | FW_FEATURE_COPY |
66 FW_FEATURE_ASR | FW_FEATURE_DEBUG | FW_FEATURE_TERM |
67 FW_FEATURE_PERF | FW_FEATURE_DUMP | FW_FEATURE_INTERRUPT |
68 FW_FEATURE_MIGRATE | FW_FEATURE_PERFMON | FW_FEATURE_CRQ |
69 FW_FEATURE_VIO | FW_FEATURE_RDMA | FW_FEATURE_LLAN |
70 FW_FEATURE_BULK_REMOVE | FW_FEATURE_XDABR |
71 FW_FEATURE_PUT_TCE_IND | FW_FEATURE_STUFF_TCE |
72 FW_FEATURE_SPLPAR | FW_FEATURE_LPAR |
73 FW_FEATURE_CMO | FW_FEATURE_VPHN | FW_FEATURE_XCMO |
74 FW_FEATURE_SET_MODE | FW_FEATURE_BEST_ENERGY |
75 FW_FEATURE_FORM1_AFFINITY | FW_FEATURE_PRRN |
76 FW_FEATURE_HPT_RESIZE | FW_FEATURE_DRMEM_V2 |
77 FW_FEATURE_DRC_INFO | FW_FEATURE_BLOCK_REMOVE |
78 FW_FEATURE_PAPR_SCM | FW_FEATURE_ULTRAVISOR |
79 FW_FEATURE_RPT_INVALIDATE | FW_FEATURE_FORM2_AFFINITY |
80 FW_FEATURE_ENERGY_SCALE_INFO | FW_FEATURE_WATCHDOG,
81 FW_FEATURE_PSERIES_ALWAYS = 0,
82 FW_FEATURE_POWERNV_POSSIBLE = FW_FEATURE_OPAL | FW_FEATURE_ULTRAVISOR,
83 FW_FEATURE_POWERNV_ALWAYS = 0,
84 FW_FEATURE_PS3_POSSIBLE = FW_FEATURE_LPAR | FW_FEATURE_PS3_LV1,
85 FW_FEATURE_PS3_ALWAYS = FW_FEATURE_LPAR | FW_FEATURE_PS3_LV1,
86 FW_FEATURE_NATIVE_POSSIBLE = 0,
87 FW_FEATURE_NATIVE_ALWAYS = 0,
88 FW_FEATURE_POSSIBLE =
89#ifdef CONFIG_PPC_PSERIES
90 FW_FEATURE_PSERIES_POSSIBLE |
91#endif
92#ifdef CONFIG_PPC_POWERNV
93 FW_FEATURE_POWERNV_POSSIBLE |
94#endif
95#ifdef CONFIG_PPC_PS3
96 FW_FEATURE_PS3_POSSIBLE |
97#endif
98#ifdef CONFIG_PPC_HASH_MMU_NATIVE
99 FW_FEATURE_NATIVE_ALWAYS |
100#endif
101 0,
102 FW_FEATURE_ALWAYS =
103#ifdef CONFIG_PPC_PSERIES
104 FW_FEATURE_PSERIES_ALWAYS &
105#endif
106#ifdef CONFIG_PPC_POWERNV
107 FW_FEATURE_POWERNV_ALWAYS &
108#endif
109#ifdef CONFIG_PPC_PS3
110 FW_FEATURE_PS3_ALWAYS &
111#endif
112#ifdef CONFIG_PPC_HASH_MMU_NATIVE
113 FW_FEATURE_NATIVE_ALWAYS &
114#endif
115 FW_FEATURE_POSSIBLE,
116
117#else /* CONFIG_PPC64 */
118 FW_FEATURE_POSSIBLE = 0,
119 FW_FEATURE_ALWAYS = 0,
120#endif
121};
122
123/* This is used to identify firmware features which are available
124 * to the kernel.
125 */
126extern unsigned long powerpc_firmware_features;
127
128#define firmware_has_feature(feature) \
129 ((FW_FEATURE_ALWAYS & (feature)) || \
130 (FW_FEATURE_POSSIBLE & powerpc_firmware_features & (feature)))
131
132extern void system_reset_fwnmi(void);
133extern void machine_check_fwnmi(void);
134
135/* This is true if we are using the firmware NMI handler (typically LPAR) */
136extern int fwnmi_active;
137extern int ibm_nmi_interlock_token;
138
139extern unsigned int __start___fw_ftr_fixup, __stop___fw_ftr_fixup;
140
141#ifdef CONFIG_PPC_PSERIES
142void pseries_probe_fw_features(void);
143#else
144static inline void pseries_probe_fw_features(void) { }
145#endif
146
147#endif /* __ASSEMBLY__ */
148#endif /* __KERNEL__ */
149#endif /* __ASM_POWERPC_FIRMWARE_H */