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   1 /******************************************************************************
   2  * arch/ia64/include/asm/native/inst.h
   3  *
   4  * Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp>
   5  *                    VA Linux Systems Japan K.K.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  *
  21  */
  22
  23 #define DO_SAVE_MIN             IA64_NATIVE_DO_SAVE_MIN
  24
  25 #define __paravirt_switch_to                    ia64_native_switch_to
  26 #define __paravirt_leave_syscall                ia64_native_leave_syscall
  27 #define __paravirt_work_processed_syscall       ia64_native_work_processed_syscall
  28 #define __paravirt_leave_kernel                 ia64_native_leave_kernel
  29 #define __paravirt_pending_syscall_end          ia64_work_pending_syscall_end
  30 #define __paravirt_work_processed_syscall_target \
  31                                                 ia64_work_processed_syscall
  32
  33 #ifdef CONFIG_PARAVIRT_GUEST_ASM_CLOBBER_CHECK
  34 # define PARAVIRT_POISON        0xdeadbeefbaadf00d
  35 # define CLOBBER(clob)                          \
  36         ;;                                      \
  37         movl clob = PARAVIRT_POISON;            \
  38         ;;
  39 # define CLOBBER_PRED(pred_clob)                \
  40         ;;                                      \
  41         cmp.eq pred_clob, p0 = r0, r0           \
  42         ;;
  43 #else
  44 # define CLOBBER(clob)                  /* nothing */
  45 # define CLOBBER_PRED(pred_clob)        /* nothing */
  46 #endif
  47
  48 #define MOV_FROM_IFA(reg)       \
  49         mov reg = cr.ifa
  50
  51 #define MOV_FROM_ITIR(reg)      \
  52         mov reg = cr.itir
  53
  54 #define MOV_FROM_ISR(reg)       \
  55         mov reg = cr.isr
  56
  57 #define MOV_FROM_IHA(reg)       \
  58         mov reg = cr.iha
  59
  60 #define MOV_FROM_IPSR(pred, reg)        \
  61 (pred)  mov reg = cr.ipsr
  62
  63 #define MOV_FROM_IIM(reg)       \
  64         mov reg = cr.iim
  65
  66 #define MOV_FROM_IIP(reg)       \
  67         mov reg = cr.iip
  68
  69 #define MOV_FROM_IVR(reg, clob) \
  70         mov reg = cr.ivr        \
  71         CLOBBER(clob)
  72
  73 #define MOV_FROM_PSR(pred, reg, clob)   \
  74 (pred)  mov reg = psr                   \
  75         CLOBBER(clob)
  76
  77 #define MOV_TO_IFA(reg, clob)   \
  78         mov cr.ifa = reg        \
  79         CLOBBER(clob)
  80
  81 #define MOV_TO_ITIR(pred, reg, clob)    \
  82 (pred)  mov cr.itir = reg               \
  83         CLOBBER(clob)
  84
  85 #define MOV_TO_IHA(pred, reg, clob)     \
  86 (pred)  mov cr.iha = reg                \
  87         CLOBBER(clob)
  88
  89 #define MOV_TO_IPSR(pred, reg, clob)            \
  90 (pred)  mov cr.ipsr = reg                       \
  91         CLOBBER(clob)
  92
  93 #define MOV_TO_IFS(pred, reg, clob)     \
  94 (pred)  mov cr.ifs = reg                \
  95         CLOBBER(clob)
  96
  97 #define MOV_TO_IIP(reg, clob)   \
  98         mov cr.iip = reg        \
  99         CLOBBER(clob)
 100
 101 #define MOV_TO_KR(kr, reg, clob0, clob1)        \
 102         mov IA64_KR(kr) = reg                   \
 103         CLOBBER(clob0)                          \
 104         CLOBBER(clob1)
 105
 106 #define ITC_I(pred, reg, clob)  \
 107 (pred)  itc.i reg               \
 108         CLOBBER(clob)
 109
 110 #define ITC_D(pred, reg, clob)  \
 111 (pred)  itc.d reg               \
 112         CLOBBER(clob)
 113
 114 #define ITC_I_AND_D(pred_i, pred_d, reg, clob)  \
 115 (pred_i) itc.i reg;                             \
 116 (pred_d) itc.d reg                              \
 117         CLOBBER(clob)
 118
 119 #define THASH(pred, reg0, reg1, clob)           \
 120 (pred)  thash reg0 = reg1                       \
 121         CLOBBER(clob)
 122
 123 #define SSM_PSR_IC_AND_DEFAULT_BITS_AND_SRLZ_I(clob0, clob1)            \
 124         ssm psr.ic | PSR_DEFAULT_BITS                                   \
 125         CLOBBER(clob0)                                                  \
 126         CLOBBER(clob1)                                                  \
 127         ;;                                                              \
 128         srlz.i /* guarantee that interruption collectin is on */        \
 129         ;;
 130
 131 #define SSM_PSR_IC_AND_SRLZ_D(clob0, clob1)     \
 132         ssm psr.ic                              \
 133         CLOBBER(clob0)                          \
 134         CLOBBER(clob1)                          \
 135         ;;                                      \
 136         srlz.d
 137
 138 #define RSM_PSR_IC(clob)        \
 139         rsm psr.ic              \
 140         CLOBBER(clob)
 141
 142 #define SSM_PSR_I(pred, pred_clob, clob)        \
 143 (pred)  ssm psr.i                               \
 144         CLOBBER(clob)                           \
 145         CLOBBER_PRED(pred_clob)
 146
 147 #define RSM_PSR_I(pred, clob0, clob1)   \
 148 (pred)  rsm psr.i                       \
 149         CLOBBER(clob0)                  \
 150         CLOBBER(clob1)
 151
 152 #define RSM_PSR_I_IC(clob0, clob1, clob2)       \
 153         rsm psr.i | psr.ic                      \
 154         CLOBBER(clob0)                          \
 155         CLOBBER(clob1)                          \
 156         CLOBBER(clob2)
 157
 158 #define RSM_PSR_DT              \
 159         rsm psr.dt
 160
 161 #define SSM_PSR_DT_AND_SRLZ_I   \
 162         ssm psr.dt              \
 163         ;;                      \
 164         srlz.i
 165
 166 #define BSW_0(clob0, clob1, clob2)      \
 167         bsw.0                           \
 168         CLOBBER(clob0)                  \
 169         CLOBBER(clob1)                  \
 170         CLOBBER(clob2)
 171
 172 #define BSW_1(clob0, clob1)     \
 173         bsw.1                   \
 174         CLOBBER(clob0)          \
 175         CLOBBER(clob1)
 176
 177 #define COVER   \
 178         cover
 179
 180 #define RFI     \
 181         rfi