| 1 | /* |
| 2 | * ========== Copyright Header Begin ========================================== |
| 3 | * |
| 4 | * OpenSPARC T2 Processor File: hpv_calls.s |
| 5 | * Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved |
| 6 | * 4150 Network Circle, Santa Clara, California 95054, U.S.A. |
| 7 | * |
| 8 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License as published by |
| 12 | * the Free Software Foundation; version 2 of the License. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | * GNU General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this program; if not, write to the Free Software |
| 21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 22 | * |
| 23 | * For the avoidance of doubt, and except that if any non-GPL license |
| 24 | * choice is available it will apply instead, Sun elects to use only |
| 25 | * the General Public License version 2 (GPLv2) at this time for any |
| 26 | * software where a choice of GPL license versions is made |
| 27 | * available with the language indicating that GPLv2 or any later version |
| 28 | * may be used, or where a choice of which version of the GPL is applied is |
| 29 | * otherwise unspecified. |
| 30 | * |
| 31 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 32 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 33 | * have any questions. |
| 34 | * |
| 35 | * |
| 36 | * ========== Copyright Header End ============================================ |
| 37 | */ |
| 38 | #ident "@(#) hpv_calls.s 1.1 04/10/11 16:44:05" |
| 39 | #include <sys/asm_linkage.h> |
| 40 | |
| 41 | #pragma ident "@(#) hpv_calls.s 1.1 04/10/11 16:44:05 SMI" |
| 42 | |
| 43 | /* |
| 44 | * Hypervisor calls |
| 45 | */ |
| 46 | |
| 47 | #include <sys/asm_linkage.h> |
| 48 | #define HPV_CALL_TRAP 0x90 |
| 49 | #define CONS_READ 0x60 |
| 50 | #define CONS_WRITE 0x61 |
| 51 | #define TOD_GET 0x50 |
| 52 | #define MAP_PERM_ADDR 0x25 |
| 53 | #define MMU_SET_INFOPTR 0x26 |
| 54 | |
| 55 | #define DISK_READ 0xf0 |
| 56 | #define DISK_WRITE 0xf1 |
| 57 | #define CPU_QCONF 0x14 |
| 58 | #define HACK_XCALL 0xf6 /* XXX */ |
| 59 | #define FAKE_INTR 0xf7 /* XXX */ |
| 60 | #define CONS_STATUS 0xf8 |
| 61 | #define CONS_SETINTR 0xf9 |
| 62 | |
| 63 | #if defined(lint) || defined(__lint) |
| 64 | |
| 65 | /*ARGSUSED*/ |
| 66 | uint64_t |
| 67 | hv_mmu_set_infoptr(uint64_t rmissarea) |
| 68 | { return (0); } |
| 69 | |
| 70 | /*ARGSUSED*/ |
| 71 | uint64_t |
| 72 | hv_tod_get(void) |
| 73 | { return (0); } |
| 74 | |
| 75 | uint64_t |
| 76 | hv_ld_scratch0(void) |
| 77 | { return (0); } |
| 78 | |
| 79 | /*ARGSUSED*/ |
| 80 | void |
| 81 | hv_st_scratch0(uint64_t v) |
| 82 | { } |
| 83 | |
| 84 | /*ARGSUSED*/ |
| 85 | int |
| 86 | hv_mmu_map_perm_addr(void *vaddr, int ctx, uint64_t tte, int flags) |
| 87 | { return (0); } |
| 88 | |
| 89 | /*ARGSUSED*/ |
| 90 | int |
| 91 | hv_cpu_qconf(int queue, uint64_t paddr, int size) |
| 92 | { return (0); } |
| 93 | |
| 94 | int |
| 95 | hv_fake_intr(void) |
| 96 | { return (0); } |
| 97 | |
| 98 | #else /* lint || __lint */ |
| 99 | |
| 100 | #define ASI_SCRATCHPAD 0x20 /* XXX */ |
| 101 | /* XXXQ - sun4v OBP/OS convention: va0x0/ASI_SCRATCHPAD contains miss area */ |
| 102 | |
| 103 | /* |
| 104 | * XXX These do not belong here |
| 105 | */ |
| 106 | ENTRY(hv_ld_scratch0) |
| 107 | retl |
| 108 | ldxa [%g0]ASI_SCRATCHPAD, %o0 |
| 109 | SET_SIZE(hv_ld_scratch0) |
| 110 | |
| 111 | ENTRY(hv_st_scratch0) |
| 112 | retl |
| 113 | stxa %o0, [%g0]ASI_SCRATCHPAD |
| 114 | SET_SIZE(hv_st_scratch0) |
| 115 | |
| 116 | /* |
| 117 | * Returns old infoptr on success, -1 on failure |
| 118 | */ |
| 119 | ENTRY(hv_mmu_set_infoptr) |
| 120 | mov MMU_SET_INFOPTR, %o5 |
| 121 | ta HPV_CALL_TRAP |
| 122 | tst %o0 |
| 123 | movz %xcc, %o1, %o0 |
| 124 | retl |
| 125 | movnz %xcc, -1, %o0 |
| 126 | SET_SIZE(hv_mmu_set_infoptr) |
| 127 | |
| 128 | ENTRY(hv_debug) |
| 129 | ta 0x70 |
| 130 | retl |
| 131 | nop |
| 132 | SET_SIZE(hv_debug) |
| 133 | |
| 134 | /* |
| 135 | * %o0 - disk offset |
| 136 | * %o1 - target real address |
| 137 | * %o2 - size |
| 138 | */ |
| 139 | ENTRY(hv_disk_read) |
| 140 | mov DISK_READ, %o5 |
| 141 | ta HPV_CALL_TRAP |
| 142 | tst %o0 |
| 143 | movz %xcc, %o1, %o0 |
| 144 | retl |
| 145 | movnz %xcc, -1, %o0 |
| 146 | SET_SIZE(hv_disk_read) |
| 147 | |
| 148 | /* |
| 149 | * %o0 - disk offset |
| 150 | * %o1 - target real address |
| 151 | * %o2 - size |
| 152 | */ |
| 153 | ENTRY(hv_disk_write) |
| 154 | mov DISK_WRITE, %o5 |
| 155 | ta HPV_CALL_TRAP |
| 156 | tst %o0 |
| 157 | movz %xcc, %o1, %o0 |
| 158 | retl |
| 159 | movnz %xcc, -1, %o0 |
| 160 | SET_SIZE(hv_disk_write) |
| 161 | |
| 162 | /* |
| 163 | * %o0 - character |
| 164 | */ |
| 165 | ENTRY(hv_cnputchar) |
| 166 | ta T_CHANGE_PRIV |
| 167 | mov CONS_WRITE, %o5 |
| 168 | ta HPV_CALL_TRAP |
| 169 | ta T_CHANGE_NONPRIV |
| 170 | tst %o0 |
| 171 | movz %xcc, %o1, %o0 |
| 172 | retl |
| 173 | movnz %xcc, -1, %o0 |
| 174 | SET_SIZE(hv_cnputchar) |
| 175 | |
| 176 | /* |
| 177 | * %o0 pointer to character buffer |
| 178 | * return values: |
| 179 | * 0 success |
| 180 | * hv_errno failure |
| 181 | * (int64_t)-1 BREAK |
| 182 | */ |
| 183 | ENTRY(hv_cngetchar) |
| 184 | mov %o0, %o2 |
| 185 | mov CONS_READ, %o5 |
| 186 | ta HPV_CALL_TRAP |
| 187 | brnz,a %o0, 1f ! failure, just return error |
| 188 | mov 1, %o0 |
| 189 | |
| 190 | cmp %o1, -1 ! BREAK, return -1 |
| 191 | be 1f |
| 192 | mov %o1, %o0 |
| 193 | |
| 194 | stb %o1, [%o2] ! success, save character and return 0 |
| 195 | mov 0, %o0 |
| 196 | 1: |
| 197 | retl |
| 198 | nop |
| 199 | SET_SIZE(hv_cngetchar) |
| 200 | |
| 201 | /* |
| 202 | * %o0 pointer to character buffer |
| 203 | * return values: |
| 204 | * 0 success |
| 205 | * hv_errno failure |
| 206 | * (int64_t)-1 BREAK |
| 207 | */ |
| 208 | ENTRY(hv_cngetstatus) |
| 209 | mov %o0, %o2 |
| 210 | mov CONS_STATUS, %o5 |
| 211 | ta HPV_CALL_TRAP |
| 212 | brnz,a %o0, 1f ! failure, just return error |
| 213 | mov 1, %o0 |
| 214 | |
| 215 | stb %o1, [%o2] ! success, save character and return 0 |
| 216 | mov 0, %o0 |
| 217 | 1: |
| 218 | retl |
| 219 | nop |
| 220 | SET_SIZE(hv_cngetstatus) |
| 221 | |
| 222 | /* |
| 223 | * %o0 - character |
| 224 | */ |
| 225 | ENTRY(hv_cnsetintr) |
| 226 | mov CONS_SETINTR, %o5 |
| 227 | ta HPV_CALL_TRAP |
| 228 | tst %o0 |
| 229 | movz %xcc, %o1, %o0 |
| 230 | retl |
| 231 | movnz %xcc, -1, %o0 |
| 232 | SET_SIZE(hv_cnsetintr) |
| 233 | |
| 234 | ENTRY(hv_tod_get) |
| 235 | mov TOD_GET, %o5 |
| 236 | ta HPV_CALL_TRAP |
| 237 | tst %o0 |
| 238 | movz %xcc, %o1, %o0 |
| 239 | retl |
| 240 | movnz %xcc, -1, %o0 |
| 241 | SET_SIZE(hv_tod_get) |
| 242 | |
| 243 | |
| 244 | /* |
| 245 | * Map permanent address |
| 246 | * arg0 vaddr (%o0) |
| 247 | * arg1 context (%o1) |
| 248 | * arg2 tte (%o2) |
| 249 | * arg3 flags (%o3) 0x1=d 0x2=i |
| 250 | */ |
| 251 | ENTRY(hv_mmu_map_perm_addr) |
| 252 | mov MAP_PERM_ADDR, %o5 |
| 253 | ta HPV_CALL_TRAP |
| 254 | tst %o0 |
| 255 | movz %xcc, %o1, %o0 |
| 256 | retl |
| 257 | movnz %xcc, -1, %o0 |
| 258 | SET_SIZE(hv_mmu_map_perm_addr) |
| 259 | |
| 260 | |
| 261 | /* |
| 262 | * CPU Q Configure |
| 263 | * arg0 queue (%o0) |
| 264 | * arg1 Base address RA (%o1) |
| 265 | * arg2 Size (%o2) |
| 266 | */ |
| 267 | ENTRY(hv_cpu_qconf) |
| 268 | mov CPU_QCONF, %o5 |
| 269 | ta HPV_CALL_TRAP |
| 270 | retl |
| 271 | nop |
| 272 | SET_SIZE(hv_cpu_qconf) |
| 273 | |
| 274 | /* |
| 275 | * XXXQ temporary |
| 276 | */ |
| 277 | ENTRY(hv_fake_intr) |
| 278 | mov FAKE_INTR, %o5 |
| 279 | ta HPV_CALL_TRAP |
| 280 | retl |
| 281 | nop |
| 282 | SET_SIZE(hv_fake_intr) |
| 283 | |
| 284 | ENTRY(hv_hack_xcall) |
| 285 | mov HACK_XCALL, %o5 |
| 286 | ta HPV_CALL_TRAP |
| 287 | retl |
| 288 | nop |
| 289 | SET_SIZE(hv_hack_xcall) |
| 290 | |
| 291 | |
| 292 | /* |
| 293 | * %o0 - addr, %o1 data |
| 294 | */ |
| 295 | ENTRY(hv_poke_little) |
| 296 | ta T_CHANGE_PRIV |
| 297 | mov VPCI_IO_POKE, %o5 |
| 298 | ta HPV_CALL_TRAP |
| 299 | ta T_CHANGE_NONPRIV |
| 300 | retl |
| 301 | SET_SIZE(hv_poke_little) |
| 302 | |
| 303 | /* |
| 304 | * %o0 - addr, %o0 returned w/ data |
| 305 | */ |
| 306 | ENTRY(hv_peek_little) |
| 307 | ta T_CHANGE_PRIV |
| 308 | mov VPCI_IO_PEEK, %o5 |
| 309 | ta HPV_CALL_TRAP |
| 310 | ta T_CHANGE_NONPRIV |
| 311 | retl |
| 312 | SET_SIZE(hv_peek_little) |
| 313 | |
| 314 | /* |
| 315 | * %o0 - addr, %o1 data |
| 316 | */ |
| 317 | ENTRY(hv_poke) |
| 318 | ta T_CHANGE_PRIV |
| 319 | mov IO_POKE, %o5 |
| 320 | ta HPV_CALL_TRAP |
| 321 | ta T_CHANGE_NONPRIV |
| 322 | retl |
| 323 | SET_SIZE(hv_poke) |
| 324 | |
| 325 | /* |
| 326 | * %o0 - addr, %o0 returned w/ data |
| 327 | */ |
| 328 | ENTRY(hv_peek) |
| 329 | ta T_CHANGE_PRIV |
| 330 | mov IO_PEEK, %o5 |
| 331 | ta HPV_CALL_TRAP |
| 332 | ta T_CHANGE_NONPRIV |
| 333 | retl |
| 334 | SET_SIZE(hv_peek) |
| 335 | |
| 336 | #endif /* lint || __lint */ |