1 #ifndef _ASM_POWERPC_ASM_PROTOTYPES_H
2 #define _ASM_POWERPC_ASM_PROTOTYPES_H
4 * This file is for prototypes of C functions that are only called
5 * from asm, and any associated variables.
7 * Copyright 2016, Daniel Axtens, IBM Corporation.
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version 2
12 * of the License, or (at your option) any later version.
15 #include <linux/threads.h>
16 #include <asm/cacheflush.h>
17 #include <asm/checksum.h>
18 #include <linux/uaccess.h>
19 #include <asm/epapr_hcalls.h>
21 #include <uapi/asm/ucontext.h>
24 extern struct thread_info *current_set[NR_CPUS];
25 extern struct thread_info *secondary_ti;
26 void start_secondary(void *unused);
31 extern struct paca_struct kexec_paca;
32 void kexec_copy_flush(struct kimage *image);
34 /* pseries hcall tracing */
35 extern struct static_key hcall_tracepoint_key;
36 void __trace_hcall_entry(unsigned long opcode, unsigned long *args);
37 void __trace_hcall_exit(long opcode, unsigned long retval,
38 unsigned long *retbuf);
40 #ifdef HAVE_JUMP_LABEL
41 extern struct static_key opal_tracepoint_key;
44 void __trace_opal_entry(unsigned long opcode, unsigned long *args);
45 void __trace_opal_exit(long opcode, unsigned long retval);
48 int enter_vmx_usercopy(void);
49 int exit_vmx_usercopy(void);
50 int enter_vmx_copy(void);
51 void * exit_vmx_copy(void *dest);
54 long machine_check_early(struct pt_regs *regs);
55 long hmi_exception_realmode(struct pt_regs *regs);
56 void SMIException(struct pt_regs *regs);
57 void handle_hmi_exception(struct pt_regs *regs);
58 void instruction_breakpoint_exception(struct pt_regs *regs);
59 void RunModeException(struct pt_regs *regs);
60 void single_step_exception(struct pt_regs *regs);
61 void program_check_exception(struct pt_regs *regs);
62 void alignment_exception(struct pt_regs *regs);
63 void StackOverflow(struct pt_regs *regs);
64 void nonrecoverable_exception(struct pt_regs *regs);
65 void kernel_fp_unavailable_exception(struct pt_regs *regs);
66 void altivec_unavailable_exception(struct pt_regs *regs);
67 void vsx_unavailable_exception(struct pt_regs *regs);
68 void fp_unavailable_tm(struct pt_regs *regs);
69 void altivec_unavailable_tm(struct pt_regs *regs);
70 void vsx_unavailable_tm(struct pt_regs *regs);
71 void facility_unavailable_exception(struct pt_regs *regs);
72 void TAUException(struct pt_regs *regs);
73 void altivec_assist_exception(struct pt_regs *regs);
74 void unrecoverable_exception(struct pt_regs *regs);
75 void kernel_bad_stack(struct pt_regs *regs);
76 void system_reset_exception(struct pt_regs *regs);
77 void machine_check_exception(struct pt_regs *regs);
78 void emulation_assist_interrupt(struct pt_regs *regs);
80 /* signals, syscalls and interrupts */
82 int sys_swapcontext(struct ucontext __user *old_ctx,
83 struct ucontext __user *new_ctx,
84 long ctx_size, long r6, long r7, long r8, struct pt_regs *regs);
86 long sys_swapcontext(struct ucontext __user *old_ctx,
87 struct ucontext __user *new_ctx,
88 int ctx_size, int r6, int r7, int r8, struct pt_regs *regs);
90 long sys_switch_endian(void);
91 notrace unsigned int __check_irq_replay(void);
92 void notrace restore_interrupts(void);
95 long do_syscall_trace_enter(struct pt_regs *regs);
96 void do_syscall_trace_leave(struct pt_regs *regs);
99 void restore_math(struct pt_regs *regs);
100 void restore_tm_state(struct pt_regs *regs);
102 /* prom_init (OpenFirmware) */
103 unsigned long __init prom_init(unsigned long r3, unsigned long r4,
105 unsigned long r6, unsigned long r7,
106 unsigned long kbase);
109 void __init early_setup(unsigned long dt_ptr);
110 void early_setup_secondary(void);
113 void accumulate_stolen_time(void);
116 extern u64 __bswapdi2(u64);
117 extern s64 __lshrdi3(s64, int);
118 extern s64 __ashldi3(s64, int);
119 extern s64 __ashrdi3(s64, int);
120 extern int __cmpdi2(s64, s64);
121 extern int __ucmpdi2(u64, u64);
125 #endif /* _ASM_POWERPC_ASM_PROTOTYPES_H */