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/*
* Copyright (c) 2001-2004 Jakub Jermar
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @addtogroup generic
* @{
*/
/** @file
*/
#ifndef KERN_ARCH_H_
#define KERN_ARCH_H_
#include <arch/arch.h>
#include <proc/thread.h>
#include <proc/task.h>
#define DEFAULT_CONTEXT 0
#define CPU THE->cpu
#define THREAD THE->thread
#define TASK THE->task
#define AS THE->as
#define CONTEXT (THE->task ? THE->task->context : DEFAULT_CONTEXT)
#define PREEMPTION_DISABLED THE->preemption_disabled
#define context_check(ctx1, ctx2) ((ctx1) == (ctx2))
/**
* For each possible kernel stack, structure
* of the following type will be placed at
* the base address of the stack.
*/
typedef struct {
size_t preemption_disabled; /**< Preemption disabled counter. */
thread_t *thread; /**< Current thread. */
task_t *task; /**< Current task. */
cpu_t *cpu; /**< Executing cpu. */
as_t *as; /**< Current address space. */
} the_t;
#define THE ((the_t * )(get_stack_base()))
extern void the_initialize(the_t *the);
extern void the_copy(the_t *src, the_t *dst);
extern void arch_pre_mm_init(void);
extern void arch_post_mm_init(void);
extern void arch_post_cpu_init(void);
extern void arch_pre_smp_init(void);
extern void arch_post_smp_init(void);
extern void calibrate_delay_loop(void);
extern void reboot(void);
extern void arch_reboot(void);
extern void *arch_construct_function(fncptr_t *fptr, void *addr, void *caller);
#endif
/** @}
*/
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