Rev 3153 | Go to most recent revision | Only display areas with differences | Regard whitespace | Details | Blame | Last modification | View Log | RSS feed
Rev 3153 | Rev 3674 | ||
---|---|---|---|
1 | /* |
1 | /* |
2 | * Copyright (c) 2006 Jakub Jermar |
2 | * Copyright (c) 2006 Jakub Jermar |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | #include <arch/arch.h> |
29 | #include <arch/arch.h> |
30 | #include <arch/mm/cache_spec.h> |
30 | #include <arch/mm/cache_spec.h> |
31 | 31 | ||
32 | #define DCACHE_TAG_SHIFT 2 |
32 | #define DCACHE_TAG_SHIFT 2 |
33 | 33 | ||
34 | .register %g2, #scratch |
34 | .register %g2, #scratch |
35 | .register %g3, #scratch |
35 | .register %g3, #scratch |
36 | 36 | ||
37 | /** Flush the whole D-cache. */ |
37 | /** Flush the whole D-cache. */ |
38 | .global dcache_flush |
38 | .global dcache_flush |
39 | dcache_flush: |
39 | dcache_flush: |
40 | set (DCACHE_SIZE - DCACHE_LINE_SIZE), %g1 |
40 | set (DCACHE_SIZE - DCACHE_LINE_SIZE), %g1 |
41 | stxa %g0, [%g1] ASI_DCACHE_TAG |
41 | stxa %g0, [%g1] ASI_DCACHE_TAG |
42 | 0: membar #Sync |
42 | 0: membar #Sync |
43 | subcc %g1, DCACHE_LINE_SIZE, %g1 |
43 | subcc %g1, DCACHE_LINE_SIZE, %g1 |
44 | bnz,pt %xcc, 0b |
44 | bnz,pt %xcc, 0b |
45 | stxa %g0, [%g1] ASI_DCACHE_TAG |
45 | stxa %g0, [%g1] ASI_DCACHE_TAG |
46 | membar #Sync |
46 | membar #Sync |
47 | retl |
47 | retl |
48 | ! beware SF Erratum #51, do not put the MEMBAR here |
48 | ! beware SF Erratum #51, do not put the MEMBAR here |
49 | nop |
49 | nop |
50 | - | ||
51 | /** Flush only D-cache lines of one virtual color. |
- | |
52 | * |
- | |
53 | * @param o0 Virtual color to be flushed. |
- | |
54 | */ |
- | |
55 | .global dcache_flush_color |
- | |
56 | dcache_flush_color: |
- | |
57 | mov (DCACHE_SIZE / DCACHE_LINE_SIZE) / 2, %g1 |
- | |
58 | set DCACHE_SIZE / 2, %g2 |
- | |
59 | sllx %g2, %o0, %g2 |
- | |
60 | sub %g2, DCACHE_LINE_SIZE, %g2 |
- | |
61 | 0: stxa %g0, [%g2] ASI_DCACHE_TAG |
- | |
62 | membar #Sync |
- | |
63 | subcc %g1, 1, %g1 |
- | |
64 | bnz,pt %xcc, 0b |
- | |
65 | sub %g2, DCACHE_LINE_SIZE, %g2 |
- | |
66 | retl |
- | |
67 | nop |
- | |
68 | - | ||
69 | /** Flush only D-cache lines of one virtual color and one tag. |
- | |
70 | * |
- | |
71 | * @param o0 Virtual color to lookup the tag. |
- | |
72 | * @param o1 Tag of the cachelines to be flushed. |
- | |
73 | */ |
- | |
74 | .global dcache_flush_tag |
- | |
75 | dcache_flush_tag: |
- | |
76 | mov (DCACHE_SIZE / DCACHE_LINE_SIZE) / 2, %g1 |
- | |
77 | set DCACHE_SIZE / 2, %g2 |
- | |
78 | sllx %g2, %o0, %g2 |
- | |
79 | sub %g2, DCACHE_LINE_SIZE, %g2 |
- | |
80 | 0: ldxa [%g2] ASI_DCACHE_TAG, %g3 |
- | |
81 | srlx %g3, DCACHE_TAG_SHIFT, %g3 |
- | |
82 | cmp %g3, %o1 |
- | |
83 | bnz 1f |
- | |
84 | nop |
- | |
85 | stxa %g0, [%g2] ASI_DCACHE_TAG |
- | |
86 | membar #Sync |
- | |
87 | 1: subcc %g1, 1, %g1 |
- | |
88 | bnz,pt %xcc, 0b |
- | |
89 | sub %g2, DCACHE_LINE_SIZE, %g2 |
- | |
90 | retl |
- | |
91 | nop |
- | |
92 | 50 | ||
93 | - | ||
94 |
|
- | |
95 | - | ||
96 | - | ||
97 | - |