| 1 | /* |
| 2 | * ========== Copyright Header Begin ========================================== |
| 3 | * |
| 4 | * OpenSPARC T2 Processor File: memop_mt_l2_dep_store.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 | #define MAIN_PAGE_NUCLEUS_ALSO |
| 39 | #define MAIN_PAGE_HV_ALSO |
| 40 | |
| 41 | #ifndef SYNC_THREADS |
| 42 | #define SYNC_THREADS 0xff |
| 43 | #endif |
| 44 | |
| 45 | #include "hboot.s" |
| 46 | #include "asi_s.h" |
| 47 | #include "nmacros.h" |
| 48 | |
| 49 | /**************************************************************** |
| 50 | * Objective: |
| 51 | * Macro used by one main thread to sync up with any other running |
| 52 | * threads, uses parking as the method to accomplish this. |
| 53 | * |
| 54 | * Syntax: |
| 55 | * SYNC_THREAD_MAIN( |
| 56 | * unpark_value, exit_label, tmp_reg_1, tmp_reg_2, tmp_reg_3 |
| 57 | * ) |
| 58 | * |
| 59 | * Args: |
| 60 | * unpark_value -> value to write to CMP_CORE_RUNNING_W1S |
| 61 | * to unpark the other threads, 1 bit/thread |
| 62 | * exit_label -> label to branch to on timeout |
| 63 | * tmp_reg_1/2/3 -> temporary registers |
| 64 | * |
| 65 | * Expectation from macro user: |
| 66 | * The macro SYNC_THREAD_OTHER will be used in the other thread's code. |
| 67 | * These two macros work together to accomplish the synchronization. |
| 68 | * NOTE that these macros assume that the other threads have already |
| 69 | * been started. |
| 70 | */ |
| 71 | |
| 72 | define(SYNC_THREAD_MAIN,` |
| 73 | setx ASI_CMP_CORE_RUNNING_STATUS, $3, $4 |
| 74 | setx 0x400, $3, $5 |
| 75 | 1: |
| 76 | subcc $5, 1, $5 |
| 77 | brz $5, $2 |
| 78 | nop |
| 79 | ldxa [$4] ASI_CMP_CORE, $3 |
| 80 | membar #Sync |
| 81 | subcc $3, 0x1, $3 |
| 82 | brnz $3, 1b |
| 83 | nop |
| 84 | |
| 85 | setx $1, $3, $4 |
| 86 | setx ASI_CMP_CORE_RUNNING_W1S, $3, $5 |
| 87 | stxa $4, [$5] ASI_CMP_CORE |
| 88 | membar #Sync |
| 89 | ') |
| 90 | |
| 91 | |
| 92 | /**************************************************************** |
| 93 | * Objective: |
| 94 | * Macro used other threads to sync up with a main thread, uses |
| 95 | * parking as the method to accomplish this. |
| 96 | * |
| 97 | * Syntax: |
| 98 | * SYNC_THREAD_OTHER( |
| 99 | * thread_id, tmp_reg_1, tmp_reg_2 |
| 100 | * ) |
| 101 | * |
| 102 | * Args: |
| 103 | * thread_id -> register containing thread id # for this tread |
| 104 | * tmp_reg_1/2 -> temporary registers |
| 105 | * |
| 106 | * Expectation from macro user: |
| 107 | * The macro SYNC_THREAD_OTHER will be used in the code for any thread |
| 108 | * except thread 0. Works with the SYNC_THREAD_MAIN macro. These two |
| 109 | * macros work together to accomplish the synchronization. |
| 110 | */ |
| 111 | |
| 112 | define(SYNC_THREAD_OTHER,` |
| 113 | setx ASI_CMP_CORE_RUNNING_W1C, $2, $3 |
| 114 | set 0x1, $2 |
| 115 | sllx $2, $1, $2 |
| 116 | stxa $2, [$3] ASI_CMP_CORE |
| 117 | membar #Sync |
| 118 | ') |
| 119 | |
| 120 | |
| 121 | /************************************************************************ |
| 122 | Test case code start |
| 123 | ************************************************************************/ |
| 124 | |
| 125 | .text |
| 126 | .global main |
| 127 | |
| 128 | main: |
| 129 | ta T_CHANGE_HPRIV |
| 130 | |
| 131 | ! Initialize the global registers. |
| 132 | mov %g0, %g1 |
| 133 | mov %g0, %g2 |
| 134 | mov %g0, %g3 |
| 135 | mov %g0, %g4 |
| 136 | mov %g0, %g5 |
| 137 | mov %g0, %g6 |
| 138 | mov %g0, %g7 |
| 139 | |
| 140 | ta T_RD_THID |
| 141 | cmp %o1, 0x0 |
| 142 | be main_t0 |
| 143 | nop |
| 144 | ba main_t1_to_t63 |
| 145 | nop |
| 146 | |
| 147 | !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
| 148 | ! |
| 149 | ! Thread 0 Start |
| 150 | ! |
| 151 | !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
| 152 | |
| 153 | main_t0: |
| 154 | |
| 155 | ! Sync up all the treads. |
| 156 | |
| 157 | SYNC_THREAD_MAIN( SYNC_THREADS, test_failed, %g1, %g2, %g3 ) |
| 158 | |
| 159 | ! Bring data of all 1's into a L2 cache line |
| 160 | test1_t0: |
| 161 | setx dep_store_addr, %g1, %g2 |
| 162 | ldx [%g2], %l0 |
| 163 | membar #Sync |
| 164 | |
| 165 | ! Do byte stores into that same L2 cache line. |
| 166 | ! Data = 0, 1, 2, 3, ..., 63 |
| 167 | |
| 168 | mov %g2, %g3 ! %g3 = address |
| 169 | mov %g0, %g1 ! %g1 = data |
| 170 | |
| 171 | storeloop_t0: |
| 172 | stb %g1, [%g3] |
| 173 | add %g1, 1, %g1 |
| 174 | cmp %g1, 63 |
| 175 | bne storeloop_t0 |
| 176 | add %g3, 1, %g3 |
| 177 | |
| 178 | ! Do byte reads from that same L2 cache line |
| 179 | ! Check the data read. |
| 180 | |
| 181 | mov %g2, %g3 ! %g3 = address |
| 182 | mov %g0, %g1 ! %g1 = data |
| 183 | |
| 184 | readloop_t0: |
| 185 | ldub [%g3], %l1 |
| 186 | cmp %l1, %g1 |
| 187 | bne test_failed |
| 188 | add %g1, 1, %g1 |
| 189 | cmp %g1, 63 |
| 190 | bne readloop_t0 |
| 191 | add %g3, 1, %g3 |
| 192 | |
| 193 | ba test_passed |
| 194 | nop |
| 195 | |
| 196 | !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
| 197 | ! |
| 198 | ! Thread 1 Start |
| 199 | ! |
| 200 | !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
| 201 | |
| 202 | main_t1_to_t63: |
| 203 | |
| 204 | ! Sync up the treads. |
| 205 | |
| 206 | SYNC_THREAD_OTHER( %o1,%g1,%g2 ) |
| 207 | |
| 208 | ! Bring data of all 1's into a L2 cache line |
| 209 | test1_t1_t63: |
| 210 | setx dep_store_addr, %g1, %g2 |
| 211 | ldx [%g2], %l0 |
| 212 | membar #Sync |
| 213 | |
| 214 | ! Do byte stores into that same L2 cache line. |
| 215 | ! Data = 0, 1, 2, 3, ..., 63 |
| 216 | |
| 217 | mov %g2, %g3 ! %g3 = address |
| 218 | mov %g0, %g1 ! %g1 = data |
| 219 | |
| 220 | storeloop_t1_t63: |
| 221 | stb %g1, [%g3] |
| 222 | add %g1, 1, %g1 |
| 223 | cmp %g1, 63 |
| 224 | bne storeloop_t1_t63 |
| 225 | add %g3, 1, %g3 |
| 226 | |
| 227 | ! Do byte reads from that same L2 cache line |
| 228 | ! Check the data read. |
| 229 | |
| 230 | mov %g2, %g3 ! %g3 = address |
| 231 | mov %g0, %g1 ! %g1 = data |
| 232 | |
| 233 | readloop_t1_t63: |
| 234 | ldub [%g3], %l1 |
| 235 | cmp %l1, %g1 |
| 236 | bne test_failed |
| 237 | add %g1, 1, %g1 |
| 238 | cmp %g1, 63 |
| 239 | bne readloop_t1_t63 |
| 240 | add %g3, 1, %g3 |
| 241 | |
| 242 | ba test_passed |
| 243 | nop |
| 244 | |
| 245 | /********************************************************************** |
| 246 | * Common code. |
| 247 | *********************************************************************/ |
| 248 | |
| 249 | test_passed: |
| 250 | EXIT_GOOD |
| 251 | nop |
| 252 | |
| 253 | test_failed: |
| 254 | EXIT_BAD |
| 255 | nop |
| 256 | user_text_end: |
| 257 | |
| 258 | /************************************************************************ |
| 259 | * Test case data start |
| 260 | ************************************************************************/ |
| 261 | .align 8192 |
| 262 | .data |
| 263 | user_data_start: |
| 264 | .xword 0x00000000 |
| 265 | .xword 0x00000000 |
| 266 | .xword 0x00000000 |
| 267 | .xword 0x00000000 |
| 268 | dep_store_addr: |
| 269 | .xword 0xffffffff |
| 270 | .xword 0xffffffff |
| 271 | .xword 0xffffffff |
| 272 | .xword 0xffffffff |
| 273 | .xword 0xffffffff |
| 274 | .xword 0xffffffff |
| 275 | .xword 0xffffffff |
| 276 | .xword 0xffffffff |
| 277 | .xword 0xffffffff |
| 278 | .xword 0xffffffff |
| 279 | .xword 0xffffffff |
| 280 | .xword 0xffffffff |
| 281 | .xword 0xffffffff |
| 282 | .xword 0xffffffff |
| 283 | .xword 0xffffffff |
| 284 | .xword 0xffffffff |
| 285 | .end |
| 286 | |
| 287 | |
| 288 | |