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/*
 * Copyright (c) 2005 Jakub Jermar
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/** @addtogroup sparc64 
 * @{
 */
/** @file
 */

#ifndef KERN_sparc64_REGISTER_H_
#define KERN_sparc64_REGISTER_H_

#include <arch/regdef.h>
#include <arch/types.h>

/** Version Register. */
union ver_reg {
    uint64_t value;
    struct {
        uint16_t manuf; /**< Manufacturer code. */
        uint16_t impl;  /**< Implementation code. */
        uint8_t mask;   /**< Mask set revision. */
        unsigned : 8;
        uint8_t maxtl;
        unsigned : 3;
        unsigned maxwin : 5;
    } __attribute__ ((packed));
};
typedef union ver_reg ver_reg_t;

/** Processor State Register. */
union pstate_reg {
    uint64_t value;
    struct {
        uint64_t : 52;
        unsigned ig : 1;    /**< Interrupt Globals. */
        unsigned mg : 1;    /**< MMU Globals. */
        unsigned cle : 1;   /**< Current Little Endian. */
        unsigned tle : 1;   /**< Trap Little Endian. */
        unsigned mm : 2;    /**< Memory Model. */
        unsigned red : 1;   /**< RED state. */
        unsigned pef : 1;   /**< Enable floating-point. */
        unsigned am : 1;    /**< 32-bit Address Mask. */
        unsigned priv : 1;  /**< Privileged Mode. */
        unsigned ie : 1;    /**< Interrupt Enable. */
        unsigned ag : 1;    /**< Alternate Globals*/
    } __attribute__ ((packed));
};
typedef union pstate_reg pstate_reg_t;

/** TICK Register. */
union tick_reg {
    uint64_t value;
    struct {
        unsigned npt : 1;   /**< Non-privileged Trap enable. */
        uint64_t counter : 63;  /**< Elapsed CPU clck cycle counter. */
    } __attribute__ ((packed));
};
typedef union tick_reg tick_reg_t;

/** TICK_compare Register. */
union tick_compare_reg {
    uint64_t value;
    struct {
        unsigned int_dis : 1;       /**< TICK_INT interrupt disabled flag. */
        uint64_t tick_cmpr : 63;    /**< Compare value for TICK interrupts. */
    } __attribute__ ((packed));
};
typedef union tick_compare_reg tick_compare_reg_t;

/** SOFTINT Register. */
union softint_reg {
    uint64_t value;
    struct {
        uint64_t : 47; 
        unsigned stick_int : 1;
        unsigned int_level : 15;
        unsigned tick_int : 1;
    } __attribute__ ((packed));
};
typedef union softint_reg softint_reg_t;

/** Floating-point Registers State Register. */
union fprs_reg {
    uint64_t value;
    struct {
        uint64_t : 61;
        unsigned fef : 1;
        unsigned du : 1;
        unsigned dl : 1;
    } __attribute__ ((packed));
};
typedef union fprs_reg fprs_reg_t;

/** UPA_CONFIG register.
 *
 * Note that format of this register differs significantly from
 * processor version to version. The format defined here
 * is the common subset for all supported processor versions.
 */
union upa_config {
    uint64_t value;
    struct {
        uint64_t : 34;
        unsigned pcon : 8;  /**< Processor configuration. */
        unsigned mid : 5;   /**< Module (processor) ID register. */
        unsigned pcap : 17; /**< Processor capabilities. */
    } __attribute__ ((packed));
};
typedef union upa_config upa_config_t;

#endif

/** @}
 */