/* * ========== Copyright Header Begin ========================================== * * OpenSPARC T2 Processor File: tso_n2_mutex1.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 spinlock_addr_reg %o0 #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: setx spinlock_address, %l0, spinlock_addr_reg ! spinlock address set TIMEOUT, to_reg ! set timeout count set ITERATIONS, global_cnt_reg ! or spinlock_addr_reg, %g0, my_id_reg th_fork(th_main,%l0) th_main_0: add my_id_reg, 0x20, my_id_reg ! my ID address stb %g0, [my_id_reg] ! reset the value ba getlock nop th_main_1: add my_id_reg, 0x24, my_id_reg stb %g0, [my_id_reg] ba getlock nop th_main_2: add my_id_reg, 0x28, my_id_reg stb %g0, [my_id_reg] ba getlock nop th_main_3: add my_id_reg, 0x2c, my_id_reg stb %g0, [my_id_reg] ba getlock nop th_main_4: add my_id_reg, 0x30, my_id_reg stb %g0, [my_id_reg] ba getlock nop th_main_5: add my_id_reg, 0x34, my_id_reg stb %g0, [my_id_reg] ba getlock nop th_main_6: add my_id_reg, 0x38, my_id_reg stb %g0, [my_id_reg] ba getlock nop th_main_7: add my_id_reg, 0x3c, my_id_reg stb %g0, [my_id_reg] ba getlock nop th_main_8: add my_id_reg, 0x00, my_id_reg ! my ID address stb %g0, [my_id_reg] ! reset the value ba getlock nop th_main_9: add my_id_reg, 0x04, my_id_reg stb %g0, [my_id_reg] ba getlock nop th_main_10: add my_id_reg, 0x08, my_id_reg stb %g0, [my_id_reg] ba getlock nop th_main_11: add my_id_reg, 0x0c, my_id_reg stb %g0, [my_id_reg] ba getlock nop th_main_12: add my_id_reg, 0x10, my_id_reg stb %g0, [my_id_reg] ba getlock nop th_main_13: add my_id_reg, 0x14, my_id_reg stb %g0, [my_id_reg] ba getlock nop th_main_14: add my_id_reg, 0x18, my_id_reg stb %g0, [my_id_reg] ba getlock nop th_main_15: add my_id_reg, 0x1c, my_id_reg stb %g0, [my_id_reg] ba getlock nop getlock: or %g0, my_id_reg, test_reg ! load the swap data register swap [spinlock_addr_reg], test_reg ! try to acquire lock tst test_reg ! did we get it? be gotlock nop dotimeout: deccc to_reg ! dec timeout count bne getlock ! branch if no timeout nop ba,a bad_end nop gotlock: set TIMEOUT, to_reg ! set timeout count again setx protected_area, %l0, data_base_reg set 100, %l0 add my_id_reg, data_base_reg, %i1 loop1: st %i1, [data_base_reg] ! st my ID in the protected area add data_base_reg, 4, data_base_reg ! increment the address add %i1, 1, %i1 deccc %l0 bne loop1 ! repeat nop set 100, %l0 loop2: sub data_base_reg, 4, data_base_reg sub %i1, 1, %i1 ld [data_base_reg], %l1 ! read the data area subcc %l1, %i1, %l1 ! should be same is i1 bne bad_end nop deccc %l0 ! repeat bne loop2 nop clearlock: st %g0, [spinlock_addr_reg] ! unlocked check_done: deccc global_cnt_reg be good_end nop ba getlock nop good_end: ta T_GOOD_TRAP bad_end: ta T_BAD_TRAP !========================== SECTION .MY_DATA0 TEXT_VA=0xf0100000, DATA_VA=0xd0100000 attr_data { Name = .MY_DATA0, VA= 0x0d0100000 RA= 0x1d0100000 PA= ra2pa(0x1d0100000,0), part_0_ctx_nonzero_tsb_config_0, TTE_G=1, TTE_Context=0x44, TTE_V=1, TTE_Size=0, TTE_NFO=0, TTE_IE=0, TTE_Soft2=0, TTE_Diag=0, TTE_Soft=0, TTE_L=0, TTE_CP=1, TTE_CV=1, TTE_E=0, TTE_P=0, TTE_W=1 } attr_text { Name = .MY_DATA0, VA= 0x0f0100000 RA= 0x1f0100000 PA= ra2pa(0x1f0100000,0), part_0_ctx_nonzero_tsb_config_0, TTE_G=1, TTE_Context=0x44, TTE_V=1, TTE_Size=0, TTE_NFO=0, TTE_IE=0, TTE_Soft2=0, TTE_Diag=0, TTE_Soft=0, TTE_L=0, TTE_CP=1, TTE_CV=1, TTE_E=0, TTE_P=0, TTE_W=1 } .data .global spinlock_address spinlock_address: .word 0x0 .skip 0x1000 .word 0x0 SECTION .MY_DATA1 TEXT_VA=0xf1110000, DATA_VA=0xd1110000 attr_data { Name = .MY_DATA1, VA= 0x0d1110000, RA= 0x1d1110000, PA= ra2pa(0x1d1110000,0), part_0_ctx_nonzero_tsb_config_0, TTE_G=1, TTE_Context=0x44, TTE_V=1, TTE_Size=0, TTE_NFO=0, TTE_IE=0, TTE_Soft2=0, TTE_Diag=0, TTE_Soft=0, TTE_L=0, TTE_CP=1, TTE_CV=1, TTE_E=0, TTE_P=0, TTE_W=1 } attr_text { Name = .MY_DATA1, VA= 0x0f1110000, RA= 0x1f1110000, PA= ra2pa(0x1f1110000,0), part_0_ctx_nonzero_tsb_config_0, TTE_G=1, TTE_Context=0x44, TTE_V=1, TTE_Size=0, TTE_NFO=0, TTE_IE=0, TTE_Soft2=0, TTE_Diag=0, TTE_Soft=0, TTE_L=0, TTE_CP=1, TTE_CV=1, TTE_E=0, TTE_P=0, TTE_W=1 } .data .global protected_area protected_area: .word 0xbeef .skip 0x1000 .word 0xbeef ! now do some post-procesing .end __PERL__ use strict; system("vlog > vlog.log"); open (F, "critsec.p -startcs=20000134 -endcs=20000198 |") or die "cannot open critsec.p...\n"; while(){ print; if(/Everything OK/){ exit 0; } } print "ERROR, something went wrong in perl postprocessing\n"; exit 1;