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  1. /*
  2.  * Copyright (c) 2006 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. /** @addtogroup sparc64mm  
  30.  * @{
  31.  */
  32. /** @file
  33.  */
  34.  
  35. #ifndef KERN_sparc64_CACHE_H_
  36. #define KERN_sparc64_CACHE_H_
  37.  
  38. #include <mm/page.h>
  39. #include <mm/frame.h>
  40.  
  41. #define dcache_flush_page(p) \
  42.     dcache_flush_color(PAGE_COLOR((p)))
  43. #define dcache_flush_frame(p, f) \
  44.     dcache_flush_tag(PAGE_COLOR((p)), ADDR2PFN((f)));
  45.  
  46. /**
  47.  * Enumerations to differentiate among different scopes of D-Cache
  48.  * invalidation.
  49.  */
  50. typedef enum {
  51.     DCACHE_INVL_INVALID,
  52.     DCACHE_INVL_ALL,
  53.     DCACHE_INVL_COLOR,
  54.     DCACHE_INVL_FRAME
  55. } dcache_invalidate_type_t;
  56.  
  57. /**
  58.  * Number of messages that can be queued in the cpu_arch_t structure at a time.
  59.  */
  60. #define DCACHE_MSG_QUEUE_LEN    10
  61.  
  62. /** D-cache shootdown message type. */
  63. typedef struct {
  64.     dcache_invalidate_type_t type;
  65.     int color;
  66.     uintptr_t frame;
  67. } dcache_shootdown_msg_t;
  68.  
  69. extern void dcache_flush(void);
  70. extern void dcache_flush_color(int c);
  71. extern void dcache_flush_tag(int c, pfn_t tag);
  72.  
  73. #ifdef CONFIG_SMP
  74. extern void dcache_shootdown_start(dcache_invalidate_type_t type, int color,
  75.     uintptr_t frame);
  76. extern void dcache_shootdown_finalize(void);
  77. extern void dcache_shootdown_ipi_recv(void);
  78. #else
  79. #define dcache_shootdown_start(t, c, f)
  80. #define dcache_shootdown_finalize()
  81. #define dcache_shootdown_ipi_recv()
  82. #endif /* CONFIG_SMP */
  83.  
  84. #endif
  85.  
  86. /** @}
  87.  */
  88.