3c2597393c
For now this is used on RISCV64 to indicate that interrupts will always be on CPU 0. However, in the future, some architectures may want or require interrupts to be "steered" in various ways, and this also paves the way for that. Change-Id: Iec79870cf5c4898d102d0e624de19602271ae772 Reviewed-on: https://review.haiku-os.org/c/haiku/+/4721 Reviewed-by: waddlesplash <waddlesplash@gmail.com> Reviewed-by: Alex von Gluck IV <kallisti5@unixzen.com> Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
48 lines
1.2 KiB
C
48 lines
1.2 KiB
C
/*
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* Copyright 2002-2010, Axel Dörfler, axeld@pinc-software.de.
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* Distributed under the terms of the MIT License.
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*
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* Copyright 2001-2002, Travis Geiselbrecht. All rights reserved.
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* Distributed under the terms of the NewOS License.
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*/
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#ifndef KERNEL_ARCH_INT_H
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#define KERNEL_ARCH_INT_H
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// config flags for arch_int_configure_io_interrupt()
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#define B_EDGE_TRIGGERED 1
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#define B_LEVEL_TRIGGERED 2
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#define B_LOW_ACTIVE_POLARITY 4
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#define B_HIGH_ACTIVE_POLARITY 8
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct kernel_args;
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status_t arch_int_init(struct kernel_args* args);
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status_t arch_int_init_post_vm(struct kernel_args* args);
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status_t arch_int_init_io(struct kernel_args* args);
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status_t arch_int_init_post_device_manager(struct kernel_args* args);
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void arch_int_enable_interrupts(void);
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int arch_int_disable_interrupts(void);
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void arch_int_restore_interrupts(int oldState);
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void arch_int_enable_io_interrupt(int irq);
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void arch_int_disable_io_interrupt(int irq);
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void arch_int_configure_io_interrupt(int irq, uint32 config);
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bool arch_int_are_interrupts_enabled(void);
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int32 arch_int_assign_to_cpu(int32 irq, int32 cpu);
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#ifdef __cplusplus
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}
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#endif
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#include <arch_int.h>
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#endif /* KERNEL_ARCH_INT_H */
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