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| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
|---|---|
| 2 | /* |
| 3 | * Copyright (C) 1999 Cort Dougan <cort@cs.nmt.edu> |
| 4 | */ |
| 5 | #ifndef _ASM_POWERPC_RUNLATCH_H |
| 6 | #define _ASM_POWERPC_RUNLATCH_H |
| 7 | |
| 8 | #ifdef CONFIG_PPC64 |
| 9 | |
| 10 | extern void __ppc64_runlatch_on(void); |
| 11 | extern void __ppc64_runlatch_off(void); |
| 12 | |
| 13 | /* |
| 14 | * We manually hard enable-disable, this is called |
| 15 | * in the idle loop and we don't want to mess up |
| 16 | * with soft-disable/enable & interrupt replay. |
| 17 | */ |
| 18 | #define ppc64_runlatch_off() \ |
| 19 | do { \ |
| 20 | if (cpu_has_feature(CPU_FTR_CTRL) && \ |
| 21 | test_thread_local_flags(_TLF_RUNLATCH)) { \ |
| 22 | __hard_irq_disable(); \ |
| 23 | __ppc64_runlatch_off(); \ |
| 24 | if (!(local_paca->irq_happened & PACA_IRQ_HARD_DIS)) \ |
| 25 | __hard_irq_enable(); \ |
| 26 | } \ |
| 27 | } while (0) |
| 28 | |
| 29 | #define ppc64_runlatch_on() \ |
| 30 | do { \ |
| 31 | if (cpu_has_feature(CPU_FTR_CTRL) && \ |
| 32 | !test_thread_local_flags(_TLF_RUNLATCH)) { \ |
| 33 | __hard_irq_disable(); \ |
| 34 | __ppc64_runlatch_on(); \ |
| 35 | if (!(local_paca->irq_happened & PACA_IRQ_HARD_DIS)) \ |
| 36 | __hard_irq_enable(); \ |
| 37 | } \ |
| 38 | } while (0) |
| 39 | #else |
| 40 | #define ppc64_runlatch_on() |
| 41 | #define ppc64_runlatch_off() |
| 42 | #endif /* CONFIG_PPC64 */ |
| 43 | |
| 44 | #endif /* _ASM_POWERPC_RUNLATCH_H */ |
| 45 |
Warning: This file is not a C or C++ file. It does not have highlighting.