/* * ========== Copyright Header Begin ========================================== * * OpenSPARC T2 Processor File: n2_err_l2_Stuck0.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 MAIN_PAGE_HV_ALSO #define L2_ENTRY_PA 0x517590000 #define TEST_DATA 0x555555555555555 #define L2_ES_W1C_VALUE 0xc03ffff800000000 #define MCUES_PA0 0x8400000280 #include "hboot.s" #include "asi_s.h" #include "err_defines.h" .text .global main main: ! Boot code does not provide TLB translation for IO address space ta T_CHANGE_HPRIV setx L2_ES_W1C_VALUE, %l0, %g4 ! Now access L2 control and status registers disable_l1: ldxa [%g0] ASI_LSU_CONTROL, %l0 ! Remove the lower 2 bits (I-Cache and D-Cache enables) andn %l0, 0x3, %l0 stxa %l0, [%g0] ASI_LSU_CONTROL ! Write 1 to clear L2 Error status registers clear_MCU_ESR: ! setx MCUES_PA0, %l3, %l4 setx L2ES_PA0,%l3, %l4 stx %g4, [%l4] nop set_L2_Directly_Mapped_Mode: setx L2CS_PA0, %l6, %g1 mov 0x2, %l0 stx %l0, [%g1] store_l2_way: setx TEST_DATA, %l0, %g5 setx 0x2020000000, %l0, %g1 stx %g5, [%g1] stx %g5, [%g1+8] membar #Sync first_load: ldx [%g1], %l1 membar #Sync second_load: setx 0x2021000000, %l0, %g2 ldx [%g2], %i4 membar #Sync load_to_mem: ldx [%g1], %l1 membar #Sync another_first_load: setx 0x2020000100, %l0, %g1 stx %g5, [%g1] stx %g5, [%g1+8] membar #Sync ldx [%g1], %l1 membar #Sync another_second_load: setx 0x2021000100, %l0, %g2 ldx [%g2], %i4 membar #Sync another_load_to_mem: ldx [%g1], %l1 membar #Sync ESR: setx L2ES_PA0,%l3, %l4 ldx [%l4], %l5 setx 0x2020000020, %l0, %g3 setx 0x2020000030, %l0, %g4 ! setx 0x2020000000, %l0, %g5 stx %g5, [%g2] membar #Sync stx %g5, [%g3] membar #Sync stx %g5, [%g4] membar #Sync ! stx %g5, [%g5] ldsw: membar #Sync ldx [%g1], %i2 membar #Sync ldx [%g2], %i4 membar #Sync ldx [%g3], %i5 membar #Sync ldx [%g4], %i6 membar #Sync ldx [%g1], %l1 membar #Sync ldx [%g1], %i2 membar #Sync ldx [%g2], %i4 membar #Sync ldx [%g3], %i5 membar #Sync ldx [%g4], %i6 membar #Sync ldx [%g1], %l1 membar #Sync ldx [%g1], %i2 membar #Sync ldx [%g2], %i4 membar #Sync ldx [%g3], %i5 membar #Sync ldx [%g4], %i6 membar #Sync another_ESR: setx L2ES_PA0,%l3, %l4 ldx [%l4], %l5 ba test_pass /******************************************************* * Exit code *******************************************************/ test_pass: ta T_GOOD_TRAP test_fail: ta T_BAD_TRAP