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  1. /*
  2.  * Copyright (c) 2005 Jakub Jermar
  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 <print.h>
  30. #include <test.h>
  31. #include <mm/page.h>
  32. #include <mm/frame.h>
  33. #include <mm/as.h>
  34. #include <arch/mm/page.h>
  35. #include <arch/mm/tlb.h>
  36. #include <arch/types.h>
  37. #include <debug.h>
  38.  
  39. extern void tlb_invalidate_all(void);
  40. extern void tlb_invalidate_pages(asid_t asid, uintptr_t va, count_t cnt);
  41.  
  42. char *test_purge1(void)
  43. {
  44.     tlb_entry_t entryi;
  45.     tlb_entry_t entryd;
  46.    
  47.     int i;
  48.    
  49.     entryd.word[0] = 0;
  50.     entryd.word[1] = 0;
  51.    
  52.     entryd.p = true;                 /* present */
  53.     entryd.ma = MA_WRITEBACK;
  54.     entryd.a = true;                 /* already accessed */
  55.     entryd.d = true;                 /* already dirty */
  56.     entryd.pl = PL_KERNEL;
  57.     entryd.ar = AR_READ | AR_WRITE;
  58.     entryd.ppn = 0;
  59.     entryd.ps = PAGE_WIDTH;
  60.    
  61.     entryi.word[0] = 0;
  62.     entryi.word[1] = 0;
  63.    
  64.     entryi.p = true;                 /* present */
  65.     entryi.ma = MA_WRITEBACK;
  66.     entryi.a = true;                 /* already accessed */
  67.     entryi.d = true;                 /* already dirty */
  68.     entryi.pl = PL_KERNEL;
  69.     entryi.ar = AR_READ | AR_EXECUTE;
  70.     entryi.ppn = 0;
  71.     entryi.ps = PAGE_WIDTH;
  72.    
  73.     for (i = 0; i < 100; i++) {
  74.         itc_mapping_insert(0 + i * (1 << PAGE_WIDTH), 8, entryi);
  75.         dtc_mapping_insert(0 + i * (1 << PAGE_WIDTH), 9, entryd);
  76.     }
  77.    
  78.     tlb_invalidate_pages(8, 0x0c000, 14);
  79.    
  80.     /* tlb_invalidate_all(); */
  81.    
  82.     return NULL;
  83. }
  84.