kernel/arch/sparc64/include/register.h

   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 /** @addtogroup sparc64
  30  * @{
  31  */
  32 /** @file
  33  */
  34
  35 #ifndef KERN_sparc64_REGISTER_H_
  36 #define KERN_sparc64_REGISTER_H_
  37
  38 #include <arch/regdef.h>
  39 #include <arch/types.h>
  40
  41 /** Version Register. */
  42 union ver_reg {
  43         uint64_t value;
  44         struct {
  45                 uint16_t manuf; /**< Manufacturer code. */
  46                 uint16_t impl;  /**< Implementation code. */
  47                 uint8_t mask;   /**< Mask set revision. */
  48                 unsigned : 8;
  49                 uint8_t maxtl;
  50                 unsigned : 3;
  51                 unsigned maxwin : 5;
  52         } __attribute__ ((packed));
  53 };
  54 typedef union ver_reg ver_reg_t;
  55
  56 /** Processor State Register. */
  57 union pstate_reg {
  58         uint64_t value;
  59         struct {
  60                 uint64_t : 52;
  61                 unsigned ig : 1;        /**< Interrupt Globals. */
  62                 unsigned mg : 1;        /**< MMU Globals. */
  63                 unsigned cle : 1;       /**< Current Little Endian. */
  64                 unsigned tle : 1;       /**< Trap Little Endian. */
  65                 unsigned mm : 2;        /**< Memory Model. */
  66                 unsigned red : 1;       /**< RED state. */
  67                 unsigned pef : 1;       /**< Enable floating-point. */
  68                 unsigned am : 1;        /**< 32-bit Address Mask. */
  69                 unsigned priv : 1;      /**< Privileged Mode. */
  70                 unsigned ie : 1;        /**< Interrupt Enable. */
  71                 unsigned ag : 1;        /**< Alternate Globals*/
  72         } __attribute__ ((packed));
  73 };
  74 typedef union pstate_reg pstate_reg_t;
  75
  76 /** TICK Register. */
  77 union tick_reg {
  78         uint64_t value;
  79         struct {
  80                 unsigned npt : 1;       /**< Non-privileged Trap enable. */
  81                 uint64_t counter : 63;  /**< Elapsed CPU clck cycle counter. */
  82         } __attribute__ ((packed));
  83 };
  84 typedef union tick_reg tick_reg_t;
  85
  86 /** TICK_compare Register. */
  87 union tick_compare_reg {
  88         uint64_t value;
  89         struct {
  90                 unsigned int_dis : 1;           /**< TICK_INT interrupt disabled flag. */
  91                 uint64_t tick_cmpr : 63;        /**< Compare value for TICK interrupts. */
  92         } __attribute__ ((packed));
  93 };
  94 typedef union tick_compare_reg tick_compare_reg_t;
  95
  96 /** SOFTINT Register. */
  97 union softint_reg {
  98         uint64_t value;
  99         struct {
 100                 uint64_t : 47;
 101                 unsigned stick_int : 1;
 102                 unsigned int_level : 15;
 103                 unsigned tick_int : 1;
 104         } __attribute__ ((packed));
 105 };
 106 typedef union softint_reg softint_reg_t;
 107
 108 /** Floating-point Registers State Register. */
 109 union fprs_reg {
 110         uint64_t value;
 111         struct {
 112                 uint64_t : 61;
 113                 unsigned fef : 1;
 114                 unsigned du : 1;
 115                 unsigned dl : 1;
 116         } __attribute__ ((packed));
 117 };
 118 typedef union fprs_reg fprs_reg_t;
 119
 120 /** UPA_CONFIG register.
 121  *
 122  * Note that format of this register differs significantly from
 123  * processor version to version. The format defined here
 124  * is the common subset for all supported processor versions.
 125  */
 126 union upa_config {
 127         uint64_t value;
 128         struct {
 129                 uint64_t : 34;
 130                 unsigned pcon : 8;      /**< Processor configuration. */
 131                 unsigned mid : 5;       /**< Module (processor) ID register. */
 132                 unsigned pcap : 17;     /**< Processor capabilities. */
 133         } __attribute__ ((packed));
 134 };
 135 typedef union upa_config upa_config_t;
 136
 137 #endif
 138
 139 /** @}
 140  */