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2008 jermar 1
/*
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 * Copyright (c) 2006 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_CACHE_H_
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#define KERN_sparc64_CACHE_H_
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#include <mm/page.h>
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#include <mm/frame.h>
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#define dcache_flush_page(p) \
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    dcache_flush_color(PAGE_COLOR((p)))
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#define dcache_flush_frame(p, f) \
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    dcache_flush_tag(PAGE_COLOR((p)), ADDR2PFN((f)));
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/**
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 * Enumerations to differentiate among different scopes of D-Cache
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 * invalidation.
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 */
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typedef enum {
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    DCACHE_INVL_INVALID,
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    DCACHE_INVL_ALL,
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    DCACHE_INVL_COLOR,
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    DCACHE_INVL_FRAME
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} dcache_invalidate_type_t;
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/**
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 * Number of messages that can be queued in the cpu_arch_t structure at a time.
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 */
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#define DCACHE_MSG_QUEUE_LEN    10
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/** D-cache shootdown message type. */
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typedef struct {
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    dcache_invalidate_type_t type;
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    int color;
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    uintptr_t frame;
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} dcache_shootdown_msg_t;
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extern void dcache_flush(void);
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extern void dcache_flush_color(int c);
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extern void dcache_flush_tag(int c, pfn_t tag);
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#ifdef CONFIG_SMP
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extern void dcache_shootdown_start(dcache_invalidate_type_t type, int color,
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    uintptr_t frame);
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extern void dcache_shootdown_finalize(void);
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extern void dcache_shootdown_ipi_recv(void);
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#else
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#define dcache_shootdown_start(t, c, f)
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#define dcache_shootdown_finalize()
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#define dcache_shootdown_ipi_recv()
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#endif /* CONFIG_SMP */
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#endif
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/** @}
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 */