usr/src/cmd/mdb/sun4v/v9/kmdb/mach_asmutil.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #ifndef _MACH_ASMUTIL_H
  28 #define _MACH_ASMUTIL_H
  29
  30 #pragma ident   "%Z%%M% %I%     %E% SMI"
  31
  32 #ifdef __cplusplus
  33 extern "C" {
  34 #endif
  35
  36 #ifdef _ASM
  37
  38 #define GET_NWIN(scr1, reg1)    \
  39         rdpr    %cwp, scr1;     /* save current %cwp */ \
  40         wrpr    %g0, 0x1f, %cwp;        \
  41         rdpr    %cwp, reg1;             \
  42         wrpr    %g0, scr1, %cwp /* restore current %cwp */
  43
  44 #define SET_GL(x)       \
  45         wrpr    %g0, x, %gl
  46
  47 #define SWITCH_TO_NORMAL_GLOBALS()      \
  48         /* tempararily save %o5 and %o4 and %o3 */; \
  49         stx     %o5, [%g5 + KREG_OFF(KREG_O5)]; \
  50         stx     %o4, [%g5 + KREG_OFF(KREG_O4)]; \
  51         stx     %o3, [%g5 + KREG_OFF(KREG_O3)]; \
  52         /* now save %g5, %g4 and %g7 cause we are going to gl 0 */; \
  53         mov     %g5, %o5        /* %o5 is gregs pointer now */; \
  54         mov     %g4, %o4        /* %o4 is %pstate value now */; \
  55         mov     %g7, %o3        /* %o3 is return pc now */; \
  56         SET_GL(0);      /* normal globals */
  57
  58 #define SWITCH_TO_TL1_GLOBALS_AND_RET() \
  59         SET_GL(1)       /* use TL1 globals, set %pstate from %o4 */;\
  60         mov     %o4, %g4                /* restore %g4 as %pstate */; \
  61         mov     %o5, %g5                /* restore %g5 as gregs pointer */; \
  62         mov     %o3, %g7                /* retore %g7 as return pc */; \
  63         ldx     [%g5 + KREG_OFF(KREG_O5)], %o5 /* restore saved %o5 */; \
  64         ldx     [%g5 + KREG_OFF(KREG_O4)], %o4 /* restore saved %o4 */; \
  65         jmp     %g7; \
  66         ldx     [%g5 + KREG_OFF(KREG_O3)], %o3 /* restore saved %o3 */
  67
  68 #define KAIF_SAVE_TL1_STATE()   \
  69         ba      kaif_save_tl1_state;\
  70         mov     PTSTATE_KERN_COMMON, %g4
  71
  72 #define KAIF_SAVE_TL1_STATE_SLAVE()     KAIF_SAVE_TL1_STATE()
  73
  74 #define SET_PSTATE_COMMON_AG(reg1)      \
  75         or      %g0, PTSTATE_KERN_COMMON, reg1;\
  76         wrpr    reg1, %pstate
  77
  78 #define KAIF_DEMAP_TLB_ALL(scr)
  79
  80 #endif
  81
  82 #ifdef __cplusplus
  83 }
  84 #endif
  85
  86 #endif /* _MACH_ASMUTIL_H */