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Diffstat (limited to 'bsps/sparc64/include/arch/mm/sun4u/tte.h')
-rw-r--r-- | bsps/sparc64/include/arch/mm/sun4u/tte.h | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/bsps/sparc64/include/arch/mm/sun4u/tte.h b/bsps/sparc64/include/arch/mm/sun4u/tte.h new file mode 100644 index 0000000000..46acaed47c --- /dev/null +++ b/bsps/sparc64/include/arch/mm/sun4u/tte.h @@ -0,0 +1,104 @@ +/* + * 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 sparc64mm + * @{ + */ +/** @file + */ + +#ifndef KERN_sparc64_sun4u_TTE_H_ +#define KERN_sparc64_sun4u_TTE_H_ + +#define TTE_G (1 << 0) +#define TTE_W (1 << 1) +#define TTE_P (1 << 2) +#define TTE_E (1 << 3) +#define TTE_CV (1 << 4) +#define TTE_CP (1 << 5) +#define TTE_L (1 << 6) + +#define TTE_V_SHIFT 63 +#define TTE_SIZE_SHIFT 61 + +#ifndef __ASM__ + +#include <arch/types.h> + +/* TTE tag's VA_tag field contains bits <63:VA_TAG_PAGE_SHIFT> of the VA */ +#define VA_TAG_PAGE_SHIFT 22 + +/** Translation Table Entry - Tag. */ +union tte_tag { + uint64_t value; + struct { + unsigned g : 1; /**< Global. */ + unsigned : 2; /**< Reserved. */ + unsigned context : 13; /**< Context identifier. */ + unsigned : 6; /**< Reserved. */ + uint64_t va_tag : 42; /**< Virtual Address Tag, bits 63:22. */ + } __attribute__ ((packed)); +}; + +typedef union tte_tag tte_tag_t; + +/** Translation Table Entry - Data. */ +union tte_data { + uint64_t value; + struct { + unsigned v : 1; /**< Valid. */ + unsigned size : 2; /**< Page size of this entry. */ + unsigned nfo : 1; /**< No-Fault-Only. */ + unsigned ie : 1; /**< Invert Endianness. */ + unsigned soft2 : 9; /**< Software defined field. */ +#if defined (US) + unsigned diag : 9; /**< Diagnostic data. */ + unsigned pfn : 28; /**< Physical Address bits, bits 40:13. */ +#elif defined (US3) + unsigned : 7; /**< Reserved. */ + unsigned pfn : 30; /**< Physical Address bits, bits 42:13 */ +#endif + unsigned soft : 6; /**< Software defined field. */ + unsigned l : 1; /**< Lock. */ + unsigned cp : 1; /**< Cacheable in physically indexed cache. */ + unsigned cv : 1; /**< Cacheable in virtually indexed cache. */ + unsigned e : 1; /**< Side-effect. */ + unsigned p : 1; /**< Privileged. */ + unsigned w : 1; /**< Writable. */ + unsigned g : 1; /**< Global. */ + } __attribute__ ((packed)); +}; + +typedef union tte_data tte_data_t; + +#endif /* !def __ASM__ */ + +#endif + +/** @} + */ |