Axel Dörfler
df213cedbc
* Added syscalls _kern_set_cpu_enabled() and _kern_cpu_enabled(). * scheduler.c::sRunQueue::tail was not maintained at all; changed sRunQueue to be a simple thread pointer instead of a struct thread_queue. * Turns out we're monitoring CPU activity incorrectly when we've got more than one CPU. * Renamed the global CPU array from "cpu" to gCPU. git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16186 a95241bf-73f2-0310-859d-f6bbb57e9c96
55 lines
1.2 KiB
C
55 lines
1.2 KiB
C
/*
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* Copyright 2002-2006, Haiku Inc. All rights reserved.
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* Distributed under the terms of the MIT License.
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*
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* Copyright 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_CPU_H
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#define _KERNEL_CPU_H
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#include <smp.h>
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#include <timer.h>
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#include <boot/kernel_args.h>
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/* CPU local data structure */
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typedef union cpu_ent {
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struct {
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int cpu_num;
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// thread.c: used to force a reschedule at quantum expiration time
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int preempted;
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timer quantum_timer;
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bool disabled;
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} info;
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} cpu_ent __attribute__((aligned(64)));
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extern cpu_ent gCPU[MAX_BOOT_CPUS];
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#ifdef __cplusplus
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extern "C" {
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#endif
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status_t cpu_preboot_init(struct kernel_args *args);
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status_t cpu_init(struct kernel_args *args);
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status_t cpu_init_post_vm(struct kernel_args *args);
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status_t cpu_init_post_modules(struct kernel_args *args);
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cpu_ent *get_cpu_struct(void);
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extern inline cpu_ent *get_cpu_struct(void) { return &gCPU[smp_get_current_cpu()]; }
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void _user_clear_caches(void *address, size_t length, uint32 flags);
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bool _user_cpu_enabled(int32 cpu);
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status_t _user_set_cpu_enabled(int32 cpu, bool enabled);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _KERNEL_CPU_H */
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