mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-03 17:40:04 +00:00
76222808fc
We originally added asm-prototypes.h in commit42f5b4cacd("powerpc: Introduce asm-prototypes.h"). It's purpose was for prototypes of C functions that are only called from asm, in order to fix sparse warnings about missing prototypes. A few months later Nick added a different use case in commit4efca4ed05("kbuild: modversions for EXPORT_SYMBOL() for asm") for C prototypes for exported asm functions. This is basically the inverse of our original usage. Since then we've added various prototypes to asm-prototypes.h for both reasons, meaning we now need to unstitch it all. Dispatch prototypes of C functions into relevant headers and keep only the prototypes for functions defined in assembly. For the time being, leave prom_init() there because moving it into asm/prom.h or asm/setup.h conflicts with drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowrom.o This will be fixed later by untaggling asm/pci.h and asm/prom.h or by renaming the function in shadowrom.c Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/62d46904eca74042097acf4cb12c175e3067f3d1.1646413435.git.christophe.leroy@csgroup.eu
92 lines
2.7 KiB
C
92 lines
2.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
#ifndef _ASM_POWERPC_ASM_PROTOTYPES_H
|
|
#define _ASM_POWERPC_ASM_PROTOTYPES_H
|
|
/*
|
|
* This file is for prototypes of C functions that are only called
|
|
* from asm, and any associated variables.
|
|
*
|
|
* Copyright 2016, Daniel Axtens, IBM Corporation.
|
|
*/
|
|
|
|
#include <linux/threads.h>
|
|
#include <asm/cacheflush.h>
|
|
#include <asm/checksum.h>
|
|
#include <linux/uaccess.h>
|
|
#include <asm/epapr_hcalls.h>
|
|
#include <asm/dcr.h>
|
|
#include <asm/mmu_context.h>
|
|
#include <asm/ultravisor-api.h>
|
|
|
|
#include <uapi/asm/ucontext.h>
|
|
|
|
/* Ultravisor */
|
|
#if defined(CONFIG_PPC_POWERNV) || defined(CONFIG_PPC_SVM)
|
|
long ucall_norets(unsigned long opcode, ...);
|
|
#else
|
|
static inline long ucall_norets(unsigned long opcode, ...)
|
|
{
|
|
return U_NOT_AVAILABLE;
|
|
}
|
|
#endif
|
|
|
|
/* OPAL */
|
|
int64_t __opal_call(int64_t a0, int64_t a1, int64_t a2, int64_t a3,
|
|
int64_t a4, int64_t a5, int64_t a6, int64_t a7,
|
|
int64_t opcode, uint64_t msr);
|
|
|
|
/* prom_init (OpenFirmware) */
|
|
unsigned long __init prom_init(unsigned long r3, unsigned long r4,
|
|
unsigned long pp,
|
|
unsigned long r6, unsigned long r7,
|
|
unsigned long kbase);
|
|
|
|
/* misc runtime */
|
|
extern u64 __bswapdi2(u64);
|
|
extern s64 __lshrdi3(s64, int);
|
|
extern s64 __ashldi3(s64, int);
|
|
extern s64 __ashrdi3(s64, int);
|
|
extern int __cmpdi2(s64, s64);
|
|
extern int __ucmpdi2(u64, u64);
|
|
|
|
/* tracing */
|
|
void _mcount(void);
|
|
|
|
/* Transaction memory related */
|
|
void tm_enable(void);
|
|
void tm_disable(void);
|
|
void tm_abort(uint8_t cause);
|
|
|
|
struct kvm_vcpu;
|
|
void _kvmppc_restore_tm_pr(struct kvm_vcpu *vcpu, u64 guest_msr);
|
|
void _kvmppc_save_tm_pr(struct kvm_vcpu *vcpu, u64 guest_msr);
|
|
|
|
/* Patch sites */
|
|
extern s32 patch__call_flush_branch_caches1;
|
|
extern s32 patch__call_flush_branch_caches2;
|
|
extern s32 patch__call_flush_branch_caches3;
|
|
extern s32 patch__flush_count_cache_return;
|
|
extern s32 patch__flush_link_stack_return;
|
|
extern s32 patch__call_kvm_flush_link_stack;
|
|
extern s32 patch__call_kvm_flush_link_stack_p9;
|
|
extern s32 patch__memset_nocache, patch__memcpy_nocache;
|
|
|
|
extern long flush_branch_caches;
|
|
extern long kvm_flush_link_stack;
|
|
|
|
#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
|
|
void kvmppc_save_tm_hv(struct kvm_vcpu *vcpu, u64 msr, bool preserve_nv);
|
|
void kvmppc_restore_tm_hv(struct kvm_vcpu *vcpu, u64 msr, bool preserve_nv);
|
|
#else
|
|
static inline void kvmppc_save_tm_hv(struct kvm_vcpu *vcpu, u64 msr,
|
|
bool preserve_nv) { }
|
|
static inline void kvmppc_restore_tm_hv(struct kvm_vcpu *vcpu, u64 msr,
|
|
bool preserve_nv) { }
|
|
#endif /* CONFIG_PPC_TRANSACTIONAL_MEM */
|
|
|
|
void kvmppc_p9_enter_guest(struct kvm_vcpu *vcpu);
|
|
|
|
long kvmppc_h_set_dabr(struct kvm_vcpu *vcpu, unsigned long dabr);
|
|
long kvmppc_h_set_xdabr(struct kvm_vcpu *vcpu, unsigned long dabr,
|
|
unsigned long dabrx);
|
|
|
|
#endif /* _ASM_POWERPC_ASM_PROTOTYPES_H */
|