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418 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_AS_H_
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#define KERN_sparc64_AS_H_
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#include <arch/mm/sun4u/tte.h>
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#define KERNEL_ADDRESS_SPACE_SHADOWED_ARCH  1
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#define KERNEL_ADDRESS_SPACE_START_ARCH     (unsigned long) 0x0000000000000000
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#define KERNEL_ADDRESS_SPACE_END_ARCH       (unsigned long) 0xffffffffffffffff
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#define USER_ADDRESS_SPACE_START_ARCH       (unsigned long) 0x0000000000000000
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#define USER_ADDRESS_SPACE_END_ARCH     (unsigned long) 0xffffffffffffffff
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#define USTACK_ADDRESS_ARCH (0xffffffffffffffffULL - (PAGE_SIZE - 1))
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#ifdef CONFIG_TSB
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/** TSB Tag Target register. */
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typedef union tsb_tag_target {
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    uint64_t value;
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    struct {
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        unsigned invalid : 1;   /**< Invalidated by software. */
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        unsigned : 2;
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        unsigned context : 13;  /**< Software ASID. */
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        unsigned : 6;
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        uint64_t va_tag : 42;   /**< Virtual address bits <63:22>. */
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    } __attribute__ ((packed));
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} tsb_tag_target_t;
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/** TSB entry. */
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typedef struct tsb_entry {
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    tsb_tag_target_t tag;
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    tte_data_t data;
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} __attribute__ ((packed)) tsb_entry_t;
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typedef struct {
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    tsb_entry_t *itsb;
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    tsb_entry_t *dtsb;
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} as_arch_t;
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#else
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typedef struct {
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} as_arch_t;
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#endif /* CONFIG_TSB */
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#include <genarch/mm/as_ht.h>
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#ifdef CONFIG_TSB
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#include <arch/mm/tsb.h>
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#define as_invalidate_translation_cache(as, page, cnt) \
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    tsb_invalidate((as), (page), (cnt))
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#else
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#define as_invalidate_translation_cache(as, page, cnt)
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#endif
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extern void as_arch_init(void);
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#endif
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/** @}
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 */