Augustin Cavalier
a97c4affc9
"int" of course is also an abbrevation for "integer", so having
two abbreviations is sometimes confusing. The BeOS functions
just use "interrupt" (e.g. "install_io_interrupt_handler"); it
seems we inherited the "int" abbreviation from NewOS.
The basic kernel methods and files related to interrupts are
here adjusted to drop the abbreviation and just use "interrupt(s)".
The architecture-specific functions ("arch_int_*") are mostly
moment left alone for now, though of course architecture-specific
usages of the generic kernel methods are adjusted.
Change-Id: Ic113ea1280a3c78e25f8ca3cc55b24ed5f594eae
Reviewed-on: https://review.haiku-os.org/c/haiku/+/9119
Tested-by: Commit checker robot <[email protected]>
Reviewed-by: Jérôme Duval <[email protected]>
Reviewed-by: waddlesplash <[email protected]>
90 lines
1.9 KiB
C
90 lines
1.9 KiB
C
/*
|
|
* Copyright 2003-2010, Axel Dörfler, [email protected].
|
|
* Distributed under the terms of the MIT License.
|
|
*
|
|
* Copyright 2001-2002, Travis Geiselbrecht. All rights reserved.
|
|
* Distributed under the terms of the NewOS License.
|
|
*/
|
|
#ifndef _KERNEL_INTERRUPTS_H
|
|
#define _KERNEL_INTERRUPTS_H
|
|
|
|
|
|
#include <KernelExport.h>
|
|
#include <arch/int.h>
|
|
|
|
#include <util/list.h>
|
|
|
|
// private install_io_interrupt_handler() flags
|
|
#define B_NO_LOCK_VECTOR 0x100
|
|
#define B_NO_HANDLED_INFO 0x200
|
|
|
|
struct kernel_args;
|
|
|
|
|
|
enum interrupt_type {
|
|
INTERRUPT_TYPE_EXCEPTION,
|
|
INTERRUPT_TYPE_IRQ,
|
|
INTERRUPT_TYPE_LOCAL_IRQ,
|
|
INTERRUPT_TYPE_SYSCALL,
|
|
INTERRUPT_TYPE_ICI,
|
|
INTERRUPT_TYPE_UNKNOWN
|
|
};
|
|
|
|
struct irq_assignment {
|
|
list_link link;
|
|
|
|
uint32 irq;
|
|
uint32 count;
|
|
|
|
int32 handlers_count;
|
|
|
|
int32 load;
|
|
int32 cpu;
|
|
};
|
|
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
status_t interrupts_init(struct kernel_args* args);
|
|
status_t interrupts_init_post_vm(struct kernel_args* args);
|
|
status_t interrupts_init_io(struct kernel_args* args);
|
|
status_t interrupts_init_post_device_manager(struct kernel_args* args);
|
|
int io_interrupt_handler(int vector, bool levelTriggered);
|
|
|
|
bool interrupts_enabled(void);
|
|
|
|
static inline void
|
|
enable_interrupts(void)
|
|
{
|
|
arch_int_enable_interrupts();
|
|
}
|
|
|
|
static inline bool
|
|
are_interrupts_enabled(void)
|
|
{
|
|
return arch_int_are_interrupts_enabled();
|
|
}
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
|
|
// map those directly to the arch versions, so they can be inlined
|
|
#define disable_interrupts() arch_int_disable_interrupts()
|
|
#define restore_interrupts(status) arch_int_restore_interrupts(status)
|
|
|
|
|
|
status_t reserve_io_interrupt_vectors(int32 count, int32 startVector,
|
|
enum interrupt_type type);
|
|
status_t allocate_io_interrupt_vectors(int32 count, int32 *startVector,
|
|
enum interrupt_type type);
|
|
void free_io_interrupt_vectors(int32 count, int32 startVector);
|
|
|
|
void assign_io_interrupt_to_cpu(int32 vector, int32 cpu);
|
|
|
|
|
|
#endif /* _KERNEL_INTERRUPTS_H */
|