1 /*-
2 * Copyright (c) 1996 Berkeley Software Design, Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * 3. Berkeley Software Design Inc's name may not be used to endorse or
13 * promote products derived from this software without specific prior
14 * written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN INC ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL BERKELEY SOFTWARE DESIGN INC BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * from BSDI $Id: ktr.h,v 1.10.2.7 2000/03/16 21:44:42 cp Exp $
29 * $FreeBSD: releng/10.1/sys/sparc64/include/ktr.h 243046 2012-11-15 00:51:57Z jeff $
30 */
31
32 #ifndef _MACHINE_KTR_H_
33 #define _MACHINE_KTR_H_
34
35 #include <sys/ktr.h>
36
37 #ifndef LOCORE
38
39 #define KTR_CPU PCPU_GET(mid)
40
41 #else
42
43 /*
44 * XXX could really use another register...
45 */
46 #define ATR(desc, r1, r2, r3, l1, l2) \
47 .sect .rodata ; \
48 l1: .asciz desc ; \
49 .previous ; \
50 SET(ktr_idx, r2, r1) ; \
51 lduw [r1], r2 ; \
52 l2: add r2, 1, r3 ; \
53 set KTR_ENTRIES - 1, r1 ; \
54 and r3, r1, r3 ; \
55 set ktr_idx, r1 ; \
56 casa [r1] ASI_N, r2, r3 ; \
57 cmp r2, r3 ; \
58 bne %icc, l2 ## b ; \
59 mov r3, r2 ; \
60 SET(ktr_buf, r3, r1) ; \
61 ldx [r1], r1 ; \
62 mulx r2, KTR_SIZEOF, r2 ; \
63 add r1, r2, r1 ; \
64 rd %tick, r2 ; \
65 stx r2, [r1 + KTR_TIMESTAMP] ; \
66 lduw [PCPU(MID)], r2 ; \
67 stw r2, [r1 + KTR_CPU] ; \
68 stw %g0, [r1 + KTR_LINE] ; \
69 stx %g0, [r1 + KTR_FILE] ; \
70 SET(l1 ## b, r3, r2) ; \
71 stx r2, [r1 + KTR_DESC]
72
73 /*
74 * NB: this clobbers %y.
75 */
76 #define CATR(mask, desc, r1, r2, r3, l1, l2, l3) \
77 set mask, r1 ; \
78 SET(ktr_mask, r3, r2) ; \
79 lduw [r2], r2 ; \
80 and r2, r1, r1 ; \
81 brz r1, l3 ## f ; \
82 nop ; \
83 lduw [PCPU(CPUID)], r2 ; \
84 mov _NCPUBITS, r3 ; \
85 mov %g0, %y ; \
86 udiv r2, r3, r2 ; \
87 srl r2, 0, r2 ; \
88 sllx r2, PTR_SHIFT, r2 ; \
89 SET(ktr_cpumask, r3, r1) ; \
90 ldx [r1 + r2], r1 ; \
91 lduw [PCPU(CPUID)], r2 ; \
92 mov _NCPUBITS, r3 ; \
93 mov %g0, %y ; \
94 udiv r2, r3, r2 ; \
95 srl r2, 0, r2 ; \
96 smul r2, r3, r3 ; \
97 lduw [PCPU(CPUID)], r2 ; \
98 sub r2, r3, r3 ; \
99 mov 1, r2 ; \
100 sllx r2, r3, r2 ; \
101 andn r1, r2, r1 ; \
102 brz r1, l3 ## f ; \
103 nop ; \
104 ATR(desc, r1, r2, r3, l1, l2)
105
106 #endif /* LOCORE */
107
108 #endif /* !_MACHINE_KTR_H_ */
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