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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.
*
* All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Harvard University.
*
* 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.
*/
/*-
* Copyright (c) 2001 by Thomas Moestl <tmm@FreeBSD.org>.
* All rights reserved.
*
* 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.
*
* 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 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.c 8.2 (Berkeley) 10/30/93
* from: NetBSD: cache.c,v 1.5 2000/12/06 01:47:50 mrg Exp
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <dev/ofw/openfirm.h>
#include <machine/cache.h>
#include <machine/tlb.h>
#include <machine/ver.h>
struct cacheinfo cache;
cache_enable_t *cache_enable;
cache_flush_t *cache_flush;
dcache_page_inval_t *dcache_page_inval;
icache_page_inval_t *icache_page_inval;
#define OF_GET(h, n, v) OF_getprop((h), (n), &(v), sizeof(v))
/*
* Fill in the cache parameters using the cpu node.
*/
void
cache_init(phandle_t node)
{
u_long set;
if (OF_GET(node, "icache-size", cache.ic_size) == -1 ||
OF_GET(node, "icache-line-size", cache.ic_linesize) == -1 ||
OF_GET(node, "icache-associativity", cache.ic_assoc) == -1 ||
OF_GET(node, "dcache-size", cache.dc_size) == -1 ||
OF_GET(node, "dcache-line-size", cache.dc_linesize) == -1 ||
OF_GET(node, "dcache-associativity", cache.dc_assoc) == -1 ||
OF_GET(node, "ecache-size", cache.ec_size) == -1 ||
OF_GET(node, "ecache-line-size", cache.ec_linesize) == -1 ||
OF_GET(node, "ecache-associativity", cache.ec_assoc) == -1)
panic("cache_init: could not retrieve cache parameters");
cache.ic_set = cache.ic_size / cache.ic_assoc;
cache.ic_l2set = ffs(cache.ic_set) - 1;
if ((cache.ic_set & ~(1UL << cache.ic_l2set)) != 0)
panic("cache_init: I$ set size not a power of 2");
cache.dc_l2size = ffs(cache.dc_size) - 1;
if ((cache.dc_size & ~(1UL << cache.dc_l2size)) != 0)
panic("cache_init: D$ size not a power of 2");
if (((cache.dc_size / cache.dc_assoc) / PAGE_SIZE) != DCACHE_COLORS)
panic("cache_init: too many D$ colors");
set = cache.ec_size / cache.ec_assoc;
cache.ec_l2set = ffs(set) - 1;
if ((set & ~(1UL << cache.ec_l2set)) != 0)
panic("cache_init: E$ set size not a power of 2");
if (cpu_impl >= CPU_IMPL_ULTRASPARCIII) {
cache_enable = cheetah_cache_enable;
cache_flush = cheetah_cache_flush;
dcache_page_inval = cheetah_dcache_page_inval;
icache_page_inval = cheetah_icache_page_inval;
tlb_flush_user = cheetah_tlb_flush_user;
} else {
cache_enable = spitfire_cache_enable;
cache_flush = spitfire_cache_flush;
dcache_page_inval = spitfire_dcache_page_inval;
icache_page_inval = spitfire_icache_page_inval;
tlb_flush_user = spitfire_tlb_flush_user;
}
}
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