6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright (c) 2007 by Sun Microsystems, Inc.
24 */
25
26 #pragma ident "%Z%%M% %I% %E% SMI"
27
28 /*
29 * General machine architecture & implementation specific
30 * assembly language routines.
31 */
32 #if defined(lint)
33 #include <sys/types.h>
34 #include <sys/machsystm.h>
35 #include <sys/t_lock.h>
36 #else /* lint */
37 #include "assym.h"
38 #endif /* lint */
39
40 #include <sys/asm_linkage.h>
41 #include <sys/eeprom.h>
42 #include <sys/param.h>
43 #include <sys/async.h>
44 #include <sys/intreg.h>
45 #include <sys/machthread.h>
46 #include <sys/iocache.h>
47 #include <sys/privregs.h>
48 #include <sys/archsystm.h>
49
50 #if defined(lint)
51
52 /*ARGSUSED*/
53 void
54 memscrub_read(caddr_t vaddr, u_int blks)
55 {}
56
57 #else /* lint */
58
59 !
60 ! void memscrub_read(caddr_t src, u_int blks)
61 !
62
63 .seg ".text"
64 .align 4
65
66 ENTRY(memscrub_read)
67 srl %o1, 0, %o1 ! clear upper word of blk count
68 rd %fprs, %o2 ! get the status of fp
69 wr %g0, FPRS_FEF, %fprs ! enable fp
70
71 1:
72 prefetch [%o0 + 8*64], 0
73 ldda [%o0]ASI_BLK_P, %d0
74 add %o0, 64, %o0
75 prefetch [%o0 + 8*64], 0
76 ldda [%o0]ASI_BLK_P, %d16
77 add %o0, 64, %o0
78 prefetch [%o0 + 8*64], 0
79 ldda [%o0]ASI_BLK_P, %d32
80 add %o0, 64, %o0
81 prefetch [%o0 + 8*64], 0
82 ldda [%o0]ASI_BLK_P, %d48
83 dec %o1
84 brnz,a %o1, 1b
85 add %o0, 64, %o0
86
87 retl
88 wr %o2, 0, %fprs ! restore fprs (disabled)
89 SET_SIZE(memscrub_read)
90
91 #endif /* lint */
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6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright (c) 2007 by Sun Microsystems, Inc.
24 */
25
26 /*
27 * General machine architecture & implementation specific
28 * assembly language routines.
29 */
30 #include "assym.h"
31
32 #include <sys/asm_linkage.h>
33 #include <sys/eeprom.h>
34 #include <sys/param.h>
35 #include <sys/async.h>
36 #include <sys/intreg.h>
37 #include <sys/machthread.h>
38 #include <sys/iocache.h>
39 #include <sys/privregs.h>
40 #include <sys/archsystm.h>
41
42 !
43 ! void memscrub_read(caddr_t src, u_int blks)
44 !
45
46 .seg ".text"
47 .align 4
48
49 ENTRY(memscrub_read)
50 srl %o1, 0, %o1 ! clear upper word of blk count
51 rd %fprs, %o2 ! get the status of fp
52 wr %g0, FPRS_FEF, %fprs ! enable fp
53
54 1:
55 prefetch [%o0 + 8*64], 0
56 ldda [%o0]ASI_BLK_P, %d0
57 add %o0, 64, %o0
58 prefetch [%o0 + 8*64], 0
59 ldda [%o0]ASI_BLK_P, %d16
60 add %o0, 64, %o0
61 prefetch [%o0 + 8*64], 0
62 ldda [%o0]ASI_BLK_P, %d32
63 add %o0, 64, %o0
64 prefetch [%o0 + 8*64], 0
65 ldda [%o0]ASI_BLK_P, %d48
66 dec %o1
67 brnz,a %o1, 1b
68 add %o0, 64, %o0
69
70 retl
71 wr %o2, 0, %fprs ! restore fprs (disabled)
72 SET_SIZE(memscrub_read)
73
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