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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. #ifndef __sparc64_REGISTER_H__
  30. #define __sparc64_REGISTER_H__
  31.  
  32. #include <arch/types.h>
  33.  
  34. /** Version Register. */
  35. union ver_reg {
  36.     __u64 value;
  37.     struct {
  38.         __u16 manuf;    /**< Manufacturer code. */
  39.         __u16 impl; /**< Implementation code. */
  40.         __u8 mask;  /**< Mask set revision. */
  41.         unsigned : 8;
  42.         __u8 maxtl;
  43.         unsigned : 3;
  44.         unsigned maxwin : 5;
  45.     } __attribute__ ((packed));
  46. };
  47. typedef union ver_reg ver_reg_t;
  48.  
  49. /** Processor State Register. */
  50. union pstate_reg {
  51.     __u64 value;
  52.     struct {
  53.         __u64 : 52;
  54.         unsigned ig : 1;    /**< Interrupt Globals. */
  55.         unsigned mg : 1;    /**< MMU Globals. */
  56.         unsigned cle : 1;   /**< Current Little Endian. */
  57.         unsigned tle : 1;   /**< Trap Little Endian. */
  58.         unsigned mm : 2;    /**< Memory Model. */
  59.         unsigned red : 1;   /**< RED state. */
  60.         unsigned pef : 1;   /**< Enable floating-point. */
  61.         unsigned am : 1;    /**< 32-bit Address Mask. */
  62.         unsigned priv : 1;  /**< Privileged Mode. */
  63.         unsigned ie : 1;    /**< Interrupt Enable. */
  64.         unsigned ag : 1;    /**< Alternate Globals*/
  65.     } __attribute__ ((packed));
  66. };
  67. typedef union pstate_reg pstate_reg_t;
  68.  
  69. /** TICK Register. */
  70. union tick_reg {
  71.     __u64 value;
  72.     struct {
  73.         unsigned npt : 1;   /**< Non-privileged Trap enable. */
  74.         __u64 counter : 63; /**< Elapsed CPU clck cycle counter. */
  75.     } __attribute__ ((packed));
  76. };
  77. typedef union tick_reg tick_reg_t;
  78.  
  79. /** TICK_compare Register. */
  80. union tick_compare_reg {
  81.     __u64 value;
  82.     struct {
  83.         unsigned int_dis : 1;   /**< TICK_INT interrupt enable. */
  84.         __u64 tick_cmpr : 63;   /**< Compare value for TICK interrupts. */
  85.     } __attribute__ ((packed));
  86. };
  87. typedef union tick_compare_reg tick_compare_reg_t;
  88.  
  89. #endif
  90.