/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 1999 Cort Dougan <cort@cs.nmt.edu> */ #ifndef _ASM_POWERPC_RUNLATCH_H #define _ASM_POWERPC_RUNLATCH_H #ifdef CONFIG_PPC64 extern void __ppc64_runlatch_on(void); extern void __ppc64_runlatch_off(void); /* * We manually hard enable-disable, this is called * in the idle loop and we don't want to mess up * with soft-disable/enable & interrupt replay. */ #define ppc64_runlatch_off() \ do { \ if (cpu_has_feature(CPU_FTR_CTRL) && \ test_thread_local_flags(_TLF_RUNLATCH)) { \ __hard_irq_disable(); \ __ppc64_runlatch_off(); \ if (!(local_paca->irq_happened & PACA_IRQ_HARD_DIS)) \ __hard_irq_enable(); \ } \ } while (0) #define ppc64_runlatch_on() \ do { \ if (cpu_has_feature(CPU_FTR_CTRL) && \ !test_thread_local_flags(_TLF_RUNLATCH)) { \ __hard_irq_disable(); \ __ppc64_runlatch_on(); \ if (!(local_paca->irq_happened & PACA_IRQ_HARD_DIS)) \ __hard_irq_enable(); \ } \ } while (0) #else #define ppc64_runlatch_on() #define ppc64_runlatch_off() #endif /* CONFIG_PPC64 */ #endif /* _ASM_POWERPC_RUNLATCH_H */