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530 jermar 1
/*
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 * Copyright (c) 2005 Jakub Jermar
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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/** @addtogroup sparc64mm  
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 * @{
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 */
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/** @file
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 */
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#ifndef KERN_sparc64_TTE_H_
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#define KERN_sparc64_TTE_H_
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#define TTE_G       (1 << 0)
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#define TTE_W       (1 << 1)
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#define TTE_P       (1 << 2)
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#define TTE_E       (1 << 3)
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#define TTE_CV      (1 << 4)
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#define TTE_CP      (1 << 5)
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#define TTE_L       (1 << 6)
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#define TTE_V_SHIFT 63
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#define TTE_SIZE_SHIFT  61
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#ifndef __ASM__
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#include <arch/types.h>
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/* TTE tag's VA_tag field contains bits <63:VA_TAG_PAGE_SHIFT> of the VA */
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#define VA_TAG_PAGE_SHIFT   22
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/** Translation Table Entry - Tag. */
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union tte_tag {
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    uint64_t value;
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    struct {
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        unsigned g : 1;     /**< Global. */
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        unsigned : 2;       /**< Reserved. */
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        unsigned context : 13;  /**< Context identifier. */
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        unsigned : 6;       /**< Reserved. */
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        uint64_t va_tag : 42;   /**< Virtual Address Tag, bits 63:22. */
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    } __attribute__ ((packed));
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};
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typedef union tte_tag tte_tag_t;
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/** Translation Table Entry - Data. */
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union tte_data {
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    uint64_t value;
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    struct {
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        unsigned v : 1;     /**< Valid. */
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        unsigned size : 2;  /**< Page size of this entry. */
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        unsigned nfo : 1;   /**< No-Fault-Only. */
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        unsigned ie : 1;    /**< Invert Endianness. */
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        unsigned soft2 : 9; /**< Software defined field. */
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#if defined (US)
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        unsigned diag : 9;  /**< Diagnostic data. */
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        unsigned pfn : 28;  /**< Physical Address bits, bits 40:13. */
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#elif defined (US3)
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        unsigned : 7;       /**< Reserved. */
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        unsigned pfn : 30;  /**< Physical Address bits, bits 42:13 */
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#endif
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        unsigned soft : 6;  /**< Software defined field. */
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        unsigned l : 1;     /**< Lock. */
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        unsigned cp : 1;    /**< Cacheable in physically indexed cache. */
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        unsigned cv : 1;    /**< Cacheable in virtually indexed cache. */
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        unsigned e : 1;     /**< Side-effect. */
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        unsigned p : 1;     /**< Privileged. */
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        unsigned w : 1;     /**< Writable. */
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        unsigned g : 1;     /**< Global. */
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    } __attribute__ ((packed));
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};
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typedef union tte_data tte_data_t;
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#endif /* !def __ASM__ */
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#endif
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/** @}
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 */