7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 1998 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #pragma ident "%Z%%M% %I% %E% SMI"
28
29 #include <sys/param.h>
30 #include <sys/errno.h>
31 #include <sys/asm_linkage.h>
32 #include <sys/vtrace.h>
33 #include <sys/machthread.h>
34 #include <sys/clock.h>
35 #include <sys/asi.h>
36 #include <sys/fsr.h>
37 #include <sys/privregs.h>
38 #include <sys/pte.h>
39 #include <sys/mmu.h>
40 #include <sys/spitregs.h>
41
42 #if defined(lint)
43
44 #else /* lint */
45 #include "assym.h"
46 #endif /* lint */
47
48 #define TT_HSM 0x99
49
50 #if defined(lint)
51 /* ARGSUSED */
52 void
53 ac_blkcopy(caddr_t src, caddr_t dst, u_int linecount, u_int linesize)
54 {}
55 #else /* !lint */
56 !
57 ! Move a single cache line of data. Survive UE and CE on the read
58 !
59 ! i0 = src va
60 ! i1 = dst va
61 ! i2 = line count
62 ! i3 = line size
63 ! i4 = cache of fpu state
64 !
65 ENTRY(ac_blkcopy)
66
67 ! TODO: can we safely SAVE here
68 save %sp, -SA(MINFRAME + 2*64), %sp
69
70 ! XXX do we need to save the state of the fpu?
71 rd %fprs, %i4
72 btst (FPRS_DU|FPRS_DL|FPRS_FEF), %i4
73
74 ! always enable FPU
75 wr %g0, FPRS_FEF, %fprs
100
101 2:
102 membar #Sync
103
104 ! restore fp to the way we got it
105 btst (FPRS_DU|FPRS_DL|FPRS_FEF), %i4
106 bz,a 3f
107 nop
108
109 ! restore fpregs from stack
110 add %fp, STACK_BIAS - 81, %o2
111 and %o2, -64, %o2
112 ldda [%o2]ASI_BLK_P, %d0
113 membar #Sync
114
115 3:
116 wr %g0, %i4, %fprs ! fpu back to the way it was
117 ret
118 restore
119 SET_SIZE(ac_blkcopy)
120 #endif /* lint */
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7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 1998 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #include <sys/param.h>
28 #include <sys/errno.h>
29 #include <sys/asm_linkage.h>
30 #include <sys/vtrace.h>
31 #include <sys/machthread.h>
32 #include <sys/clock.h>
33 #include <sys/asi.h>
34 #include <sys/fsr.h>
35 #include <sys/privregs.h>
36 #include <sys/pte.h>
37 #include <sys/mmu.h>
38 #include <sys/spitregs.h>
39
40 #include "assym.h"
41
42 #define TT_HSM 0x99
43
44 !
45 ! Move a single cache line of data. Survive UE and CE on the read
46 !
47 ! i0 = src va
48 ! i1 = dst va
49 ! i2 = line count
50 ! i3 = line size
51 ! i4 = cache of fpu state
52 !
53 ENTRY(ac_blkcopy)
54
55 ! TODO: can we safely SAVE here
56 save %sp, -SA(MINFRAME + 2*64), %sp
57
58 ! XXX do we need to save the state of the fpu?
59 rd %fprs, %i4
60 btst (FPRS_DU|FPRS_DL|FPRS_FEF), %i4
61
62 ! always enable FPU
63 wr %g0, FPRS_FEF, %fprs
88
89 2:
90 membar #Sync
91
92 ! restore fp to the way we got it
93 btst (FPRS_DU|FPRS_DL|FPRS_FEF), %i4
94 bz,a 3f
95 nop
96
97 ! restore fpregs from stack
98 add %fp, STACK_BIAS - 81, %o2
99 and %o2, -64, %o2
100 ldda [%o2]ASI_BLK_P, %d0
101 membar #Sync
102
103 3:
104 wr %g0, %i4, %fprs ! fpu back to the way it was
105 ret
106 restore
107 SET_SIZE(ac_blkcopy)
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