Contributors: 24
Author Tokens Token Proportion Commits Commit Proportion
Stephen Rothwell 185 38.87% 4 10.53%
Benjamin Herrenschmidt 54 11.34% 3 7.89%
Nicholas Piggin 37 7.77% 2 5.26%
Michael Ellerman 35 7.35% 7 18.42%
Arnd Bergmann 30 6.30% 1 2.63%
Paul Mackerras 18 3.78% 1 2.63%
Geoff Levand 17 3.57% 1 2.63%
Jesse Larrew 12 2.52% 2 5.26%
Nathan Fontenot 12 2.52% 2 5.26%
Alexey Kardashevskiy 8 1.68% 1 2.63%
Claudio Carvalho 8 1.68% 1 2.63%
Brian King 6 1.26% 1 2.63%
Oliver O'Halloran 6 1.26% 1 2.63%
Ian Munsie 6 1.26% 1 2.63%
David Gibson 6 1.26% 1 2.63%
Michael Neuling 6 1.26% 1 2.63%
Laurent Dufour 6 1.26% 1 2.63%
Aneesh Kumar K.V 6 1.26% 1 2.63%
Michael Bringmann 5 1.05% 1 2.63%
Robert Jennings 5 1.05% 1 2.63%
Anton Blanchard 3 0.63% 1 2.63%
Geert Uytterhoeven 2 0.42% 1 2.63%
Thomas Gleixner 2 0.42% 1 2.63%
Christophe Leroy 1 0.21% 1 2.63%
Total 476 38 


/* 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_PUT_TCE_IND	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)
#define FW_FEATURE_STUFF_TCE	ASM_CONST(0x0000008000000000)
#define FW_FEATURE_RPT_INVALIDATE ASM_CONST(0x0000010000000000)

#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_PUT_TCE_IND | FW_FEATURE_STUFF_TCE |
		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_RPT_INVALIDATE,
	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 int ibm_nmi_interlock_token;

extern unsigned int __start___fw_ftr_fixup, __stop___fw_ftr_fixup;

#if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_KVM_GUEST)
bool is_kvm_guest(void);
#else
static inline bool is_kvm_guest(void) { return false; }
#endif

#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 */