source: mainline/arch/ppc32/src/proc/scheduler.c@ a33c990

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since a33c990 was a33c990, checked in by Martin Decky <martin@…>, 19 years ago

ppc32 work
decrementer workaround
primitive TLB support

  • Property mode set to 100644
File size: 1.9 KB
Line 
1/*
2 * Copyright (C) 2006 Martin Decky
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include <arch/mm/page.h>
30#include <arch/boot/boot.h>
31#include <proc/scheduler.h>
32#include <proc/thread.h>
33#include <arch.h>
34
35/** Perform ppc32 specific tasks needed before the new task is run. */
36void before_task_runs_arch(void)
37{
38}
39
40/** Perform ppc32 specific tasks needed before the new thread is scheduled. */
41void before_thread_runs_arch(void)
42{
43 pht_init();
44 tlb_invalidate_all();
45 asm volatile (
46 "mtsprg0 %0\n"
47 :
48 : "r" (KA2PA(&THREAD->kstack[THREAD_STACK_SIZE - SP_DELTA]))
49 );
50}
51
52void after_thread_ran_arch(void)
53{
54}
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