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  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.  /** @addtogroup ppc32proc
  30.  * @{
  31.  */
  32. /** @file
  33.  */
  34.  
  35. #include <arch/mm/page.h>
  36. #include <arch/boot/boot.h>
  37. #include <proc/scheduler.h>
  38. #include <proc/thread.h>
  39. #include <arch.h>
  40.  
  41. /** Perform ppc32 specific tasks needed before the new task is run. */
  42. void before_task_runs_arch(void)
  43. {
  44. }
  45.  
  46. /** Perform ppc32 specific tasks needed before the new thread is scheduled. */
  47. void before_thread_runs_arch(void)
  48. {
  49.     pht_init();
  50.     tlb_invalidate_all();
  51.     asm volatile (
  52.         "mtsprg0 %0\n"
  53.         :
  54.         : "r" (KA2PA(&THREAD->kstack[THREAD_STACK_SIZE - SP_DELTA]))
  55.     );
  56. }
  57.  
  58. void after_thread_ran_arch(void)
  59. {
  60. }
  61.  
  62.  /** @}
  63.  */
  64.  
  65.