| 0,0 → 1,80 |
|---|
| /* |
| * 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. |
| */ |
| |
| #ifndef __ARCH_H__ |
| #define __ARCH_H__ |
| |
| #include <arch/types.h> |
| #include <typedefs.h> |
| |
| #include <cpu.h> |
| #include <arch/cpu.h> |
| #include <arch/asm.h> |
| |
| #include <proc/thread.h> |
| #include <proc/task.h> |
| |
| /* |
| * NOTE: |
| * CPU, THREAD and TASK are not preemption-safe. |
| * Provisions must be made to prevent preemption prior |
| * to using these macros. Simple cpu_priority_high() |
| * call will suffice. |
| */ |
| #define CPU (&cpus[CPU_ID_ARCH]) |
| #define THREAD (cpu_private_data[CPU_ID_ARCH].thread) |
| #define TASK (cpu_private_data[CPU_ID_ARCH].task) |
| |
| /* |
| * For each possible kernel stack, structure |
| * of the following type will be placed at |
| * the bottom of the stack. |
| */ |
| struct the { |
| int preemption_disabled; |
| thread_t *thread; /* current thread */ |
| task_t *task; /* current task */ |
| cpu_t *cpu; /* executing cpu */ |
| }; |
| |
| #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_late_init(void); |
| extern void calibrate_delay_loop(void); |
| |
| extern pri_t cpu_priority_high(void); |
| extern pri_t cpu_priority_low(void); |
| extern void cpu_priority_restore(pri_t pri); |
| extern pri_t cpu_priority_read(void); |
| |
| #endif |