Commit 42f5b4ca authored by Daniel Axtens's avatar Daniel Axtens Committed by Michael Ellerman
Browse files

powerpc: Introduce asm-prototypes.h 



Sparse picked up a number of functions that are implemented in C and
then only referred to in asm code.

This introduces asm-prototypes.h, which provides a place for
prototypes of these functions.

This silences some sparse warnings.

Signed-off-by: default avatarDaniel Axtens <dja@axtens.net>
[mpe: Add include guards, clean up copyright & GPL text]
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent 34852ed5

arch/powerpc/include/asm/asm-prototypes.h

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#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.

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 */



#include <linux/threads.h>

#include <linux/kprobes.h>



/* SMP */

extern struct thread_info *current_set[NR_CPUS];

extern struct thread_info *secondary_ti;

void start_secondary(void *unused);



/* kexec */

struct paca_struct;

struct kimage;

extern struct paca_struct kexec_paca;

void kexec_copy_flush(struct kimage *image);



/* pseries hcall tracing */

extern struct static_key hcall_tracepoint_key;

void __trace_hcall_entry(unsigned long opcode, unsigned long *args);

void __trace_hcall_exit(long opcode, unsigned long retval,

			unsigned long *retbuf);

/* OPAL tracing */

#ifdef HAVE_JUMP_LABEL

extern struct static_key opal_tracepoint_key;

#endif



void __trace_opal_entry(unsigned long opcode, unsigned long *args);

void __trace_opal_exit(long opcode, unsigned long retval);



/* VMX copying */

int enter_vmx_usercopy(void);

int exit_vmx_usercopy(void);

int enter_vmx_copy(void);

void * exit_vmx_copy(void *dest);



/* Traps */

long machine_check_early(struct pt_regs *regs);

long hmi_exception_realmode(struct pt_regs *regs);

void SMIException(struct pt_regs *regs);

void handle_hmi_exception(struct pt_regs *regs);

void instruction_breakpoint_exception(struct pt_regs *regs);

void RunModeException(struct pt_regs *regs);

void __kprobes single_step_exception(struct pt_regs *regs);

void __kprobes program_check_exception(struct pt_regs *regs);

void alignment_exception(struct pt_regs *regs);

void StackOverflow(struct pt_regs *regs);

void nonrecoverable_exception(struct pt_regs *regs);

void kernel_fp_unavailable_exception(struct pt_regs *regs);

void altivec_unavailable_exception(struct pt_regs *regs);

void vsx_unavailable_exception(struct pt_regs *regs);

void fp_unavailable_tm(struct pt_regs *regs);

void altivec_unavailable_tm(struct pt_regs *regs);

void vsx_unavailable_tm(struct pt_regs *regs);

void facility_unavailable_exception(struct pt_regs *regs);

void TAUException(struct pt_regs *regs);

void altivec_assist_exception(struct pt_regs *regs);

void unrecoverable_exception(struct pt_regs *regs);

void kernel_bad_stack(struct pt_regs *regs);

void system_reset_exception(struct pt_regs *regs);

void machine_check_exception(struct pt_regs *regs);

void __kprobes emulation_assist_interrupt(struct pt_regs *regs);



#endif /* _ASM_POWERPC_ASM_PROTOTYPES_H */

arch/powerpc/kernel/machine_kexec_64.c

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@@ -29,6 +29,7 @@ 
#include <asm/prom.h>

#include <asm/smp.h>

#include <asm/hw_breakpoint.h>

#include <asm/asm-prototypes.h>



#ifdef CONFIG_PPC_BOOK3E

int default_machine_kexec_prepare(struct kimage *image)

arch/powerpc/kernel/smp.c

+1 −0
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@@ -53,6 +53,7 @@ 
#include <asm/vdso.h>

#include <asm/debug.h>

#include <asm/kexec.h>

#include <asm/asm-prototypes.h>



#ifdef DEBUG

#include <asm/udbg.h>

arch/powerpc/kernel/traps.c

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@@ -60,6 +60,7 @@ 
#include <asm/switch_to.h>

#include <asm/tm.h>

#include <asm/debug.h>

#include <asm/asm-prototypes.h>

#include <sysdev/fsl_pci.h>



#if defined(CONFIG_DEBUGGER) || defined(CONFIG_KEXEC)

arch/powerpc/lib/vmx-helper.c

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@@ -21,6 +21,7 @@ 
#include <linux/uaccess.h>

#include <linux/hardirq.h>

#include <asm/switch_to.h>

#include <asm/asm-prototypes.h>



int enter_vmx_usercopy(void)

{

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