freebsd-nq/sys/sparc64/include/ktr.h
Jake Burkholder 274ae7b653 Provide an implementation of KTR_CPU that doesn't use pcpu, so we don't
crash and burn if its not setup yet.  Add timestamp, cpu, and (fake) file
and line recording to the asm version of CTR.
2002-04-06 08:40:59 +00:00

94 lines
2.8 KiB
C

/*-
* Copyright (c) 1996 Berkeley Software Design, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Berkeley Software Design Inc's name may not be used to endorse or
* promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN INC ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL BERKELEY SOFTWARE DESIGN INC BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* from BSDI $Id: ktr.h,v 1.10.2.7 2000/03/16 21:44:42 cp Exp $
* $FreeBSD$
*/
#ifndef _MACHINE_KTR_H_
#define _MACHINE_KTR_H_
#include <machine/upa.h>
#ifndef LOCORE
#define KTR_CPU UPA_CR_GET_MID(ldxa(0, ASI_UPA_CONFIG_REG))
#else
#define AND(var, mask, r1, r2) \
SET(var, r2, r1) ; \
lduw [r1], r2 ; \
and r2, mask, r1
#define TEST(var, mask, r1, r2, l1) \
AND(var, mask, r1, r2) ; \
brz r1, l1 ## f ; \
nop
/*
* XXX could really use another register...
*/
#define ATR(desc, r1, r2, r3, l1, l2) \
.sect .rodata ; \
l1 ## : .asciz desc ; \
.previous ; \
SET(ktr_idx, r2, r1) ; \
lduw [r1], r2 ; \
l2 ## : add r2, 1, r3 ; \
set KTR_ENTRIES - 1, r1 ; \
and r3, r1, r3 ; \
set ktr_idx, r1 ; \
casa [r1] ASI_N, r2, r3 ; \
cmp r2, r3 ; \
bne %icc, l2 ## b ; \
mov r3, r2 ; \
SET(ktr_buf, r3, r1) ; \
mulx r2, KTR_SIZEOF, r2 ; \
add r1, r2, r1 ; \
rd %tick, r2 ; \
stx r2, [r1 + KTR_TIMESTAMP] ; \
UPA_GET_MID(r2) ; \
stw r2, [r1 + KTR_CPU] ; \
stw %g0, [r1 + KTR_LINE] ; \
stx %g0, [r1 + KTR_FILE] ; \
SET(l1 ## b, r3, r2) ; \
stx r2, [r1 + KTR_DESC]
#define CATR(mask, desc, r1, r2, r3, l1, l2, l3) \
set mask, r1 ; \
TEST(ktr_mask, r1, r2, r2, l3) ; \
UPA_GET_MID(r1) ; \
mov 1, r2 ; \
sllx r2, r1, r1 ; \
TEST(ktr_cpumask, r1, r2, r3, l3) ; \
ATR(desc, r1, r2, r3, l1, l2)
#endif /* LOCORE */
#endif /* !_MACHINE_KTR_H_ */