/* * ========== Copyright Header Begin ========================================== * * OpenSPARC T2 Processor File: tso_n2_false_sharing6.s * Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved * 4150 Network Circle, Santa Clara, California 95054, U.S.A. * * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 2 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * For the avoidance of doubt, and except that if any non-GPL license * choice is available it will apply instead, Sun elects to use only * the General Public License version 2 (GPLv2) at this time for any * software where a choice of GPL license versions is made * available with the language indicating that GPLv2 or any later version * may be used, or where a choice of which version of the GPL is applied is * otherwise unspecified. * * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * * * ========== Copyright Header End ============================================ */ #define data_base_reg %o1 #define to_reg %o2 #define my_id_reg %o3 #define test_reg %o4 #define global_cnt_reg %o5 #define TIMEOUT 0x1000 #define ITERATIONS 0x2 #include "hboot.s" .global main main: set ITERATIONS, global_cnt_reg mov %g0, my_id_reg th_fork(th_main,%l0) th_main_0: add my_id_reg, 0x00, my_id_reg ! this is my ID address ba go nop th_main_1: ! add my_id_reg, 0x04, my_id_reg ! ba go ! nop mov 0xff, %g5 iloop1: call leafRoutine nop deccc %g5 bnz iloop1 nop th_main_2: ! add my_id_reg, 0x08, my_id_reg ! ba go ! nop mov 0xff, %g5 iloop2: call leafRoutine nop deccc %g5 bnz iloop2 nop th_main_3: add my_id_reg, 0x0c, my_id_reg ba go nop th_main_4: add my_id_reg, 0x10, my_id_reg ba go nop th_main_5: add my_id_reg, 0x14, my_id_reg ba go nop th_main_6: add my_id_reg, 0x18, my_id_reg ba go nop th_main_7: add my_id_reg, 0x1c, my_id_reg ba go nop go: setx protected_area, %l0, data_base_reg ! the data area set 100, %l0 add my_id_reg, data_base_reg, data_base_reg add my_id_reg, data_base_reg, %i1 loop1: st %i1, [data_base_reg] ! store my ID in there add data_base_reg, 0x40, data_base_reg ! increment the address add %i1, 1, %i1 deccc %l0 bne loop1 ! repeat nop set 100, %l0 loop2: sub data_base_reg, 0x40, data_base_reg sub %i1, 1, %i1 ld [data_base_reg], %l1 ! read the data area subcc %l1, %i1, %l1 ! should be same as i1 bne bad_end nop deccc %l0 ! repeat bne loop2 nop check_done: ! check if done deccc global_cnt_reg be good_end nop ba go nop good_end: ta T_GOOD_TRAP bad_end: ta T_BAD_TRAP !========================== .data .global protected_area protected_area: .word 0xbeef .global leafRoutine leafRoutine: .word 0x81c3e008 .word 0x01000000 .skip 0x1000 .word 0xbeef .end