ktr.h

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    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/6.0/sys/sparc64/include/ktr.h 114071 2003-04-26 17:00:10Z obrien $
   30  */
   31 
   32 #ifndef _MACHINE_KTR_H_
   33 #define _MACHINE_KTR_H_
   34 
   35 #include <machine/upa.h>
   36 
   37 #ifndef LOCORE
   38 
   39 #define KTR_CPU UPA_CR_GET_MID(ldxa(0, ASI_UPA_CONFIG_REG))
   40 
   41 #else
   42 
   43 #define AND(var, mask, r1, r2) \
   44         SET(var, r2, r1) ; \
   45         lduw    [r1], r2 ; \
   46         and     r2, mask, r1
   47 
   48 #define TEST(var, mask, r1, r2, l1) \
   49         AND(var, mask, r1, r2) ; \
   50         brz     r1, l1 ## f ; \
   51          nop
   52 
   53 /*
   54  * XXX could really use another register...
   55  */
   56 #define ATR(desc, r1, r2, r3, l1, l2) \
   57         .sect   .rodata ; \
   58 l1:     .asciz  desc ; \
   59         .previous ; \
   60         SET(ktr_idx, r2, r1) ; \
   61         lduw    [r1], r2 ; \
   62 l2:     add     r2, 1, r3 ; \
   63         set     KTR_ENTRIES - 1, r1 ; \
   64         and     r3, r1, r3 ; \
   65         set     ktr_idx, r1 ; \
   66         casa    [r1] ASI_N, r2, r3 ; \
   67         cmp     r2, r3 ; \
   68         bne     %icc, l2 ## b ; \
   69          mov    r3, r2 ; \
   70         SET(ktr_buf, r3, r1) ; \
   71         mulx    r2, KTR_SIZEOF, r2 ; \
   72         add     r1, r2, r1 ; \
   73         rd      %tick, r2 ; \
   74         stx     r2, [r1 + KTR_TIMESTAMP] ; \
   75         UPA_GET_MID(r2) ; \
   76         stw     r2, [r1 + KTR_CPU] ; \
   77         stw     %g0, [r1 + KTR_LINE] ; \
   78         stx     %g0, [r1 + KTR_FILE] ; \
   79         SET(l1 ## b, r3, r2) ; \
   80         stx     r2, [r1 + KTR_DESC]
   81 
   82 #define CATR(mask, desc, r1, r2, r3, l1, l2, l3) \
   83         set     mask, r1 ; \
   84         TEST(ktr_mask, r1, r2, r2, l3) ; \
   85         UPA_GET_MID(r1) ; \
   86         mov     1, r2 ; \
   87         sllx    r2, r1, r1 ; \
   88         TEST(ktr_cpumask, r1, r2, r3, l3) ; \
   89         ATR(desc, r1, r2, r3, l1, l2)
   90 
   91 #endif /* LOCORE */
   92 
   93 #endif /* !_MACHINE_KTR_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/sparc64/include/ktr.h

FreeBSD/Linux Kernel Cross Reference
sys/sparc64/include/ktr.h