1 /*-
2 * Copyright (c) 2003 Jake Burkholder.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: releng/6.0/sys/sparc64/sparc64/cheetah.c 122464 2003-11-11 06:41:54Z jake $
27 */
28
29 #include "opt_pmap.h"
30
31 #include <sys/param.h>
32 #include <sys/linker_set.h>
33 #include <sys/proc.h>
34 #include <sys/lock.h>
35 #include <sys/mutex.h>
36 #include <sys/smp.h>
37 #include <sys/sysctl.h>
38 #include <sys/systm.h>
39
40 #include <vm/vm.h>
41 #include <vm/pmap.h>
42
43 #include <machine/cache.h>
44 #include <machine/cpufunc.h>
45 #include <machine/smp.h>
46 #include <machine/tlb.h>
47
48 /*
49 * Enable level 1 caches.
50 */
51 void
52 cheetah_cache_enable(void)
53 {
54 }
55
56 /*
57 * Flush all lines from the level 1 caches.
58 */
59 void
60 cheetah_cache_flush(void)
61 {
62 }
63
64 /*
65 * Flush a physical page from the data cache.
66 */
67 void
68 cheetah_dcache_page_inval(vm_paddr_t spa)
69 {
70 vm_paddr_t pa;
71 void *cookie;
72
73 KASSERT((spa & PAGE_MASK) == 0,
74 ("dcache_page_inval: pa not page aligned"));
75 cookie = ipi_dcache_page_inval(tl_ipi_cheetah_dcache_page_inval, spa);
76 for (pa = spa; pa < spa + PAGE_SIZE; pa += cache.dc_linesize)
77 stxa_sync(pa, ASI_DCACHE_INVALIDATE, 0);
78 ipi_wait(cookie);
79 }
80
81 /*
82 * Flush a physical page from the intsruction cache. Instruction cache
83 * consistency is maintained by hardware.
84 */
85 void
86 cheetah_icache_page_inval(vm_paddr_t pa)
87 {
88 }
89
90 void
91 cheetah_tlb_flush_user(void)
92 {
93 panic("cheetah_tlb_flush_user");
94 }
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