Training courses

Kernel and Embedded Linux

Bootlin training courses

Embedded Linux, kernel,
Yocto Project, Buildroot, real-time,
graphics, boot time, debugging...

Bootlin logo

Elixir Cross Referencer

Open Menu /arch/powerpc/include/asm/firmware.h 
  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 *  Copyright (C) 2001 Ben. Herrenschmidt (benh@kernel.crashing.org)
 *
 *  Modifications for ppc64:
 *      Copyright (C) 2003 Dave Engebretsen <engebret@us.ibm.com>
 */
#ifndef __ASM_POWERPC_FIRMWARE_H
#define __ASM_POWERPC_FIRMWARE_H

#ifdef __KERNEL__

#include <asm/asm-const.h>

/* firmware feature bitmask values */

#define FW_FEATURE_PFT		ASM_CONST(0x0000000000000001)
#define FW_FEATURE_TCE		ASM_CONST(0x0000000000000002)
#define FW_FEATURE_SPRG0	ASM_CONST(0x0000000000000004)
#define FW_FEATURE_DABR		ASM_CONST(0x0000000000000008)
#define FW_FEATURE_COPY		ASM_CONST(0x0000000000000010)
#define FW_FEATURE_ASR		ASM_CONST(0x0000000000000020)
#define FW_FEATURE_DEBUG	ASM_CONST(0x0000000000000040)
#define FW_FEATURE_TERM		ASM_CONST(0x0000000000000080)
#define FW_FEATURE_PERF		ASM_CONST(0x0000000000000100)
#define FW_FEATURE_DUMP		ASM_CONST(0x0000000000000200)
#define FW_FEATURE_INTERRUPT	ASM_CONST(0x0000000000000400)
#define FW_FEATURE_MIGRATE	ASM_CONST(0x0000000000000800)
#define FW_FEATURE_PERFMON	ASM_CONST(0x0000000000001000)
#define FW_FEATURE_CRQ		ASM_CONST(0x0000000000002000)
#define FW_FEATURE_VIO		ASM_CONST(0x0000000000004000)
#define FW_FEATURE_RDMA		ASM_CONST(0x0000000000008000)
#define FW_FEATURE_LLAN		ASM_CONST(0x0000000000010000)
#define FW_FEATURE_BULK_REMOVE	ASM_CONST(0x0000000000020000)
#define FW_FEATURE_XDABR	ASM_CONST(0x0000000000040000)
#define FW_FEATURE_MULTITCE	ASM_CONST(0x0000000000080000)
#define FW_FEATURE_SPLPAR	ASM_CONST(0x0000000000100000)
#define FW_FEATURE_LPAR		ASM_CONST(0x0000000000400000)
#define FW_FEATURE_PS3_LV1	ASM_CONST(0x0000000000800000)
#define FW_FEATURE_HPT_RESIZE	ASM_CONST(0x0000000001000000)
#define FW_FEATURE_CMO		ASM_CONST(0x0000000002000000)
#define FW_FEATURE_VPHN		ASM_CONST(0x0000000004000000)
#define FW_FEATURE_XCMO		ASM_CONST(0x0000000008000000)
#define FW_FEATURE_OPAL		ASM_CONST(0x0000000010000000)
#define FW_FEATURE_SET_MODE	ASM_CONST(0x0000000040000000)
#define FW_FEATURE_BEST_ENERGY	ASM_CONST(0x0000000080000000)
#define FW_FEATURE_TYPE1_AFFINITY ASM_CONST(0x0000000100000000)
#define FW_FEATURE_PRRN		ASM_CONST(0x0000000200000000)
#define FW_FEATURE_DRMEM_V2	ASM_CONST(0x0000000400000000)
#define FW_FEATURE_DRC_INFO	ASM_CONST(0x0000000800000000)
#define FW_FEATURE_BLOCK_REMOVE ASM_CONST(0x0000001000000000)
#define FW_FEATURE_PAPR_SCM 	ASM_CONST(0x0000002000000000)
#define FW_FEATURE_ULTRAVISOR	ASM_CONST(0x0000004000000000)

#ifndef __ASSEMBLY__

enum {
#ifdef CONFIG_PPC64
	FW_FEATURE_PSERIES_POSSIBLE = FW_FEATURE_PFT | FW_FEATURE_TCE |
		FW_FEATURE_SPRG0 | FW_FEATURE_DABR | FW_FEATURE_COPY |
		FW_FEATURE_ASR | FW_FEATURE_DEBUG | FW_FEATURE_TERM |
		FW_FEATURE_PERF | FW_FEATURE_DUMP | FW_FEATURE_INTERRUPT |
		FW_FEATURE_MIGRATE | FW_FEATURE_PERFMON | FW_FEATURE_CRQ |
		FW_FEATURE_VIO | FW_FEATURE_RDMA | FW_FEATURE_LLAN |
		FW_FEATURE_BULK_REMOVE | FW_FEATURE_XDABR |
		FW_FEATURE_MULTITCE | FW_FEATURE_SPLPAR | FW_FEATURE_LPAR |
		FW_FEATURE_CMO | FW_FEATURE_VPHN | FW_FEATURE_XCMO |
		FW_FEATURE_SET_MODE | FW_FEATURE_BEST_ENERGY |
		FW_FEATURE_TYPE1_AFFINITY | FW_FEATURE_PRRN |
		FW_FEATURE_HPT_RESIZE | FW_FEATURE_DRMEM_V2 |
		FW_FEATURE_DRC_INFO | FW_FEATURE_BLOCK_REMOVE |
		FW_FEATURE_PAPR_SCM | FW_FEATURE_ULTRAVISOR,
	FW_FEATURE_PSERIES_ALWAYS = 0,
	FW_FEATURE_POWERNV_POSSIBLE = FW_FEATURE_OPAL | FW_FEATURE_ULTRAVISOR,
	FW_FEATURE_POWERNV_ALWAYS = 0,
	FW_FEATURE_PS3_POSSIBLE = FW_FEATURE_LPAR | FW_FEATURE_PS3_LV1,
	FW_FEATURE_PS3_ALWAYS = FW_FEATURE_LPAR | FW_FEATURE_PS3_LV1,
	FW_FEATURE_NATIVE_POSSIBLE = 0,
	FW_FEATURE_NATIVE_ALWAYS = 0,
	FW_FEATURE_POSSIBLE =
#ifdef CONFIG_PPC_PSERIES
		FW_FEATURE_PSERIES_POSSIBLE |
#endif
#ifdef CONFIG_PPC_POWERNV
		FW_FEATURE_POWERNV_POSSIBLE |
#endif
#ifdef CONFIG_PPC_PS3
		FW_FEATURE_PS3_POSSIBLE |
#endif
#ifdef CONFIG_PPC_NATIVE
		FW_FEATURE_NATIVE_ALWAYS |
#endif
		0,
	FW_FEATURE_ALWAYS =
#ifdef CONFIG_PPC_PSERIES
		FW_FEATURE_PSERIES_ALWAYS &
#endif
#ifdef CONFIG_PPC_POWERNV
		FW_FEATURE_POWERNV_ALWAYS &
#endif
#ifdef CONFIG_PPC_PS3
		FW_FEATURE_PS3_ALWAYS &
#endif
#ifdef CONFIG_PPC_NATIVE
		FW_FEATURE_NATIVE_ALWAYS &
#endif
		FW_FEATURE_POSSIBLE,

#else /* CONFIG_PPC64 */
	FW_FEATURE_POSSIBLE = 0,
	FW_FEATURE_ALWAYS = 0,
#endif
};

/* This is used to identify firmware features which are available
 * to the kernel.
 */
extern unsigned long	powerpc_firmware_features;

#define firmware_has_feature(feature)					\
	((FW_FEATURE_ALWAYS & (feature)) ||				\
		(FW_FEATURE_POSSIBLE & powerpc_firmware_features & (feature)))

extern void system_reset_fwnmi(void);
extern void machine_check_fwnmi(void);

/* This is true if we are using the firmware NMI handler (typically LPAR) */
extern int fwnmi_active;

extern unsigned int __start___fw_ftr_fixup, __stop___fw_ftr_fixup;

#ifdef CONFIG_PPC_PSERIES
void pseries_probe_fw_features(void);
#else
static inline void pseries_probe_fw_features(void) { };
#endif

#endif /* __ASSEMBLY__ */
#endif /* __KERNEL__ */
#endif /* __ASM_POWERPC_FIRMWARE_H */