| /* 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 <uapi/asm/ucontext.h> |
| |
| /* SMP */ |
| extern struct task_struct *current_set[NR_CPUS]; |
| extern struct task_struct *secondary_current; |
| 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, long retval, unsigned long *retbuf); |
| |
| /* 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); |
| |
| /* VMX copying */ |
| int enter_vmx_usercopy(void); |
| int exit_vmx_usercopy(void); |
| int enter_vmx_ops(void); |
| void *exit_vmx_ops(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 single_step_exception(struct pt_regs *regs); |
| void program_check_exception(struct pt_regs *regs); |
| void alignment_exception(struct pt_regs *regs); |
| void StackOverflow(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 emulation_assist_interrupt(struct pt_regs *regs); |
| long do_slb_fault(struct pt_regs *regs, unsigned long ea); |
| void do_bad_slb_fault(struct pt_regs *regs, unsigned long ea, long err); |
| |
| /* signals, syscalls and interrupts */ |
| long sys_swapcontext(struct ucontext __user *old_ctx, |
| struct ucontext __user *new_ctx, |
| long ctx_size); |
| #ifdef CONFIG_PPC32 |
| long sys_debug_setcontext(struct ucontext __user *ctx, |
| int ndbg, struct sig_dbg_op __user *dbg); |
| int |
| ppc_select(int n, fd_set __user *inp, fd_set __user *outp, fd_set __user *exp, struct timeval __user *tvp); |
| unsigned long __init early_init(unsigned long dt_ptr); |
| void __init machine_init(u64 dt_ptr); |
| #endif |
| |
| long ppc_fadvise64_64(int fd, int advice, u32 offset_high, u32 offset_low, |
| u32 len_high, u32 len_low); |
| long sys_switch_endian(void); |
| notrace unsigned int __check_irq_replay(void); |
| void notrace restore_interrupts(void); |
| |
| /* ptrace */ |
| long do_syscall_trace_enter(struct pt_regs *regs); |
| void do_syscall_trace_leave(struct pt_regs *regs); |
| |
| /* process */ |
| void restore_math(struct pt_regs *regs); |
| void restore_tm_state(struct pt_regs *regs); |
| |
| /* 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); |
| |
| /* setup */ |
| void __init early_setup(unsigned long dt_ptr); |
| void early_setup_secondary(void); |
| |
| /* time */ |
| void accumulate_stolen_time(void); |
| |
| /* 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); |
| unsigned long prepare_ftrace_return(unsigned long parent, unsigned long ip); |
| |
| void pnv_power9_force_smt4_catch(void); |
| void pnv_power9_force_smt4_release(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_count_cache; |
| extern s32 patch__flush_count_cache_return; |
| extern s32 patch__memset_nocache, patch__memcpy_nocache; |
| |
| extern long flush_count_cache; |
| |
| #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 kvmhv_save_host_pmu(void); |
| void kvmhv_load_host_pmu(void); |
| void kvmhv_save_guest_pmu(struct kvm_vcpu *vcpu, bool pmu_in_use); |
| void kvmhv_load_guest_pmu(struct kvm_vcpu *vcpu); |
| |
| int __kvmhv_vcpu_entry_p9(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 */ |