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Annotation of sys/arch/luna88k/luna88k/eh.S, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: eh.S,v 1.7 2006/04/17 16:07:59 miod Exp $     */
                      2: /*
                      3:  * Copyright (c) 2006, Miodrag Vallat
                      4:  *
                      5:  * Redistribution and use in source and binary forms, with or without
                      6:  * modification, are permitted provided that the following conditions
                      7:  * are met:
                      8:  * 1. Redistributions of source code must retain the above copyright
                      9:  *    notice, this list of conditions and the following disclaimer.
                     10:  * 2. Redistributions in binary form must reproduce the above copyright
                     11:  *    notice, this list of conditions and the following disclaimer in the
                     12:  *    documentation and/or other materials provided with the distribution.
                     13:  *
                     14:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
                     15:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
                     16:  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
                     17:  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
                     18:  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
                     19:  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
                     20:  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     21:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
                     22:  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
                     23:  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
                     24:  * POSSIBILITY OF SUCH DAMAGE.
                     25:  */
                     26:
                     27: #include <machine/board.h>
                     28: #include <machine/m8820x.h>
                     29:
                     30: /*
                     31:  * Save Pbus fault status register from data and inst CMMU.
                     32:  *
                     33:  * PFSR_SAVE is invoked with TMP, TMP2 and TMP3 available, and TMP contains
                     34:  * curcpu().
                     35:  *
                     36:  * On the Luna88k we just have to peek at the CMMU PFSR our curcpu() points
                     37:  * to.
                     38:  */
                     39:
                     40: #define        PFSR_SAVE \
                     41:        ld      TMP2, TMP,  CI_PFSR_I0; \
                     42:        ld      TMP3, TMP2, r0; \
                     43:        st      TMP3, r31,  REG_OFF(EF_IPFSR); \
                     44:        ld      TMP2, TMP,  CI_PFSR_D0; \
                     45:        ld      TMP3, TMP2, r0; \
                     46:        st      TMP3, r31,  REG_OFF(EF_DPFSR)
                     47:
                     48: #include <m88k/m88k/eh_common.S>