1 /// Copyright (c) 2006, Intel Corporation. All rights reserved.<BR> 2 /// This program and the accompanying materials 3 /// are licensed and made available under the terms and conditions of the BSD License 4 /// which accompanies this distribution. The full text of the license may be found at 5 /// http://opensource.org/licenses/bsd-license.php 6 /// 7 /// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 8 /// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 9 /// 10 /// Module Name: AccessGcr.s 11 /// 12 /// 13 /// IPF specific Global Control Registers accessing functions 14 /// 15 16 //--------------------------------------------------------------------------------- 17 //++ 18 // AsmReadDcr 19 // 20 // This routine is used to Read the value of Default Control Register (DCR). 21 // 22 // Arguments : 23 // 24 // On Entry : 25 // 26 // Return Value: The current value of DCR. 27 // 28 //-- 29 //---------------------------------------------------------------------------------- 30 .text 31 .type AsmReadDcr, @function 32 .proc AsmReadDcr 33 34 AsmReadDcr:: 35 mov r8 = cr.dcr;; 36 br.ret.dpnt b0;; 37 .endp AsmReadDcr 38 39 //--------------------------------------------------------------------------------- 40 //++ 41 // AsmWriteDcr 42 // 43 // This routine is used to write the value to Default Control Register (DCR). 44 // 45 // Arguments : 46 // 47 // On Entry : The value need to be written to DCR 48 // 49 // Return Value: The value written to DCR. 50 // 51 //-- 52 //---------------------------------------------------------------------------------- 53 .text 54 .type AsmWriteDcr, @function 55 .proc AsmWriteDcr 56 .regstk 1, 0, 0, 0 57 58 AsmWriteDcr:: 59 mov cr.dcr = in0 60 mov r8 = in0;; 61 srlz.i;; 62 srlz.d;; 63 br.ret.dpnt b0;; 64 .endp AsmWriteDcr 65 66 67 //--------------------------------------------------------------------------------- 68 //++ 69 // AsmReadItc 70 // 71 // This routine is used to Read the value of Interval Timer Counter Register (ITC). 72 // 73 // Arguments : 74 // 75 // On Entry : 76 // 77 // Return Value: The current value of ITC. 78 // 79 //-- 80 //---------------------------------------------------------------------------------- 81 .text 82 .type AsmReadItc, @function 83 .proc AsmReadItc 84 85 AsmReadItc:: 86 mov r8 = ar.itc;; 87 br.ret.dpnt b0;; 88 .endp AsmReadItc 89 90 //--------------------------------------------------------------------------------- 91 //++ 92 // AsmWriteItc 93 // 94 // This routine is used to write the value to Interval Timer Counter Register (ITC). 95 // 96 // Arguments : 97 // 98 // On Entry : The value need to be written to the ITC 99 // 100 // Return Value: The value written to the ITC. 101 // 102 //-- 103 //---------------------------------------------------------------------------------- 104 .text 105 .type AsmWriteItc, @function 106 .proc AsmWriteItc 107 .regstk 1, 0, 0, 0 108 109 AsmWriteItc:: 110 mov ar.itc = in0 111 mov r8 = in0;; 112 br.ret.dpnt b0;; 113 .endp AsmWriteItc 114 115 116 //--------------------------------------------------------------------------------- 117 //++ 118 // AsmReadItm 119 // 120 // This routine is used to Read the value of Interval Timer Match Register (ITM). 121 // 122 // Arguments : 123 // 124 // On Entry : 125 // 126 // Return Value: The current value of ITM. 127 // 128 //-- 129 //---------------------------------------------------------------------------------- 130 .text 131 .type AsmReadItm, @function 132 .proc AsmReadItm 133 134 AsmReadItm:: 135 mov r8 = cr.itm;; 136 br.ret.dpnt b0;; 137 .endp AsmReadItm 138 139 //--------------------------------------------------------------------------------- 140 //++ 141 // AsmWriteItm 142 // 143 // This routine is used to write the value to Interval Timer Match Register (ITM). 144 // 145 // Arguments : 146 // 147 // On Entry : The value need to be written to ITM 148 // 149 // Return Value: The value written to ITM. 150 // 151 //-- 152 //---------------------------------------------------------------------------------- 153 .text 154 .type AsmWriteItm, @function 155 .proc AsmWriteItm 156 .regstk 1, 0, 0, 0 157 158 AsmWriteItm:: 159 mov cr.itm = in0 160 mov r8 = in0;; 161 srlz.d; 162 br.ret.dpnt b0;; 163 .endp AsmWriteItm 164 165 166 //--------------------------------------------------------------------------------- 167 //++ 168 // AsmReadIva 169 // 170 // This routine is used to read the value of Interruption Vector Address Register (IVA). 171 // 172 // Arguments : 173 // 174 // On Entry : 175 // 176 // Return Value: The current value of IVA. 177 // 178 //-- 179 //---------------------------------------------------------------------------------- 180 .text 181 .type AsmReadIva, @function 182 .proc AsmReadIva 183 184 AsmReadIva:: 185 mov r8 = cr.iva;; 186 br.ret.dpnt b0;; 187 .endp AsmReadIva 188 189 //--------------------------------------------------------------------------------- 190 //++ 191 // AsmWriteIva 192 // 193 // This routine is used to write the value to Interruption Vector Address Register (IVA). 194 // 195 // Arguments : 196 // 197 // On Entry : The value need to be written to IVA 198 // 199 // Return Value: The value written to IVA. 200 // 201 //-- 202 //---------------------------------------------------------------------------------- 203 .text 204 .type AsmWriteIva, @function 205 .proc AsmWriteIva 206 .regstk 1, 0, 0, 0 207 208 AsmWriteIva:: 209 mov cr.iva = in0 210 mov r8 = in0;; 211 br.ret.dpnt b0;; 212 .endp AsmWriteIva 213 214 215 //--------------------------------------------------------------------------------- 216 //++ 217 // AsmReadPta 218 // 219 // This routine is used to read the value of Page Table Address Register (PTA). 220 // 221 // Arguments : 222 // 223 // On Entry : 224 // 225 // Return Value: The current value of PTA. 226 // 227 //-- 228 //---------------------------------------------------------------------------------- 229 .text 230 .type AsmReadPta, @function 231 .proc AsmReadPta 232 233 AsmReadPta:: 234 mov r8 = cr.pta;; 235 br.ret.dpnt b0;; 236 .endp AsmReadPta 237 238 //--------------------------------------------------------------------------------- 239 //++ 240 // AsmWritePta 241 // 242 // This routine is used to write the value to Page Table Address Register (PTA)). 243 // 244 // Arguments : 245 // 246 // On Entry : The value need to be written to PTA 247 // 248 // Return Value: The value written to PTA. 249 // 250 //-- 251 //---------------------------------------------------------------------------------- 252 .text 253 .type AsmWritePta, @function 254 .proc AsmWritePta 255 .regstk 1, 0, 0, 0 256 257 AsmWritePta:: 258 mov cr.pta = in0 259 mov r8 = in0;; 260 srlz.i;; 261 srlz.d;; 262 br.ret.dpnt b0;; 263 .endp AsmWritePta
