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/*-
* Copyright (c) 1996
* The President and Fellows of Harvard College. All rights reserved.
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Aaron Brown and
* Harvard University.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
*
* from: @(#)cache.h 8.1 (Berkeley) 6/11/93
* from: NetBSD: cache.h,v 1.3 2000/08/01 00:28:02 eeh Exp
*
* $FreeBSD$
*/
#ifndef _MACHINE_CACHE_H_
#define _MACHINE_CACHE_H_
#ifndef LOCORE
#include <dev/ofw/openfirm.h>
#endif
#define DCACHE_COLOR_BITS (1)
#define DCACHE_COLORS (1 << DCACHE_COLOR_BITS)
#define DCACHE_COLOR_MASK (DCACHE_COLORS - 1)
#define DCACHE_COLOR(va) (((va) >> PAGE_SHIFT) & DCACHE_COLOR_MASK)
#define DCACHE_OTHER_COLOR(color) \
((color) ^ DCACHE_COLOR_BITS)
#define DC_TAG_SHIFT 2
#define DC_VALID_SHIFT 0
#define DC_TAG_BITS 28
#define DC_VALID_BITS 2
#define DC_TAG_MASK ((1 << DC_TAG_BITS) - 1)
#define DC_VALID_MASK ((1 << DC_VALID_BITS) - 1)
#define IC_TAG_SHIFT 7
#define IC_VALID_SHIFT 36
#define IC_TAG_BITS 28
#define IC_VALID_BITS 1
#define IC_TAG_MASK ((1 << IC_TAG_BITS) - 1)
#define IC_VALID_MASK ((1 << IC_VALID_BITS) - 1)
#ifndef LOCORE
/*
* Cache control information.
*/
struct cacheinfo {
u_int c_enabled; /* true => cache is enabled */
u_int ic_size; /* instruction cache */
u_int ic_set;
u_int ic_l2set;
u_int ic_assoc;
u_int ic_linesize;
u_int dc_size; /* data cache */
u_int dc_l2size;
u_int dc_assoc;
u_int dc_linesize;
u_int ec_size; /* external cache info */
u_int ec_assoc;
u_int ec_l2set;
u_int ec_linesize;
u_int ec_l2linesize;
};
#ifdef _KERNEL
typedef void cache_enable_t(void);
typedef void cache_flush_t(void);
typedef void dcache_page_inval_t(vm_paddr_t pa);
typedef void icache_page_inval_t(vm_paddr_t pa);
void cache_init(phandle_t node);
cache_enable_t cheetah_cache_enable;
cache_flush_t cheetah_cache_flush;
dcache_page_inval_t cheetah_dcache_page_inval;
icache_page_inval_t cheetah_icache_page_inval;
cache_enable_t spitfire_cache_enable;
cache_flush_t spitfire_cache_flush;
dcache_page_inval_t spitfire_dcache_page_inval;
icache_page_inval_t spitfire_icache_page_inval;
extern cache_enable_t *cache_enable;
extern cache_flush_t *cache_flush;
extern dcache_page_inval_t *dcache_page_inval;
extern icache_page_inval_t *icache_page_inval;
extern struct cacheinfo cache;
#endif /* KERNEL */
#endif /* !LOCORE */
#endif /* !_MACHINE_CACHE_H_ */
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