/* * ========== Copyright Header Begin ========================================== * * OpenSPARC T2 Processor File: ncu_bank_en_subset.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_NUCLEUS_ALSO #define MAIN_PAGE_HV_ALSO #include "hboot.s" #include "asi_s.h" #ifndef CORE_AVAIL #define CORE_AVAIL 0xff #endif #ifndef BANK_AVAIL #define BANK_AVAIL 0xff #endif .text .global main main: ta T_CHANGE_HPRIV get_th_id: ta T_RD_THID wr %g0,ASI_CMP_CORE,%asi setx 0xffffff0000,%g7,%g3 lduw [%g3],%g5 cmp %g5,%g0 bnz not_first_core nop setx BANK_AVAIL,%g7,%g6 call calc_bank_en_st !return in %g5 nop stw %g5,[%g3] lduw [%g3],%g5 not_first_core: ! Check that bank_enable_status is correct setx 0x8000001028,%g7,%g2 ldx [%g2],%g4 cmp %g4,%g5 bne %xcc,test_fail nop all_th: ! Program bank_enable set 0xff,%g6 setx 0x8000001020,%g7,%g2 stx %g6,[%g2] ! Turn on next available core setx CORE_AVAIL,%g7,%l1 srlx %o1,0x3,%l0 set 0x1,%l2 sllx %l2,%l0,%l2 setx 0x00000000000000ff,%g7,%g1 sllx %g1,%o1,%g1 next_core_loop: add %l0,1,%l0 cmp %l0,0x9 be test_pass nop sllx %l2,1,%l2 sllx %g1,8,%g1 andcc %l1,%l2,%g0 bz next_core_loop nop stxa %g1,[ASI_CMP_CORE_ENABLE]%asi setx 0x8900000808,%g7,%g2 set 0x1,%g1 stx %g1,[%g2] halt: ba halt nop /****************************************************** * Subroutine code *******************************************************/ calc_bank_en_st: and %g6,0x1,%l0 srl %g6,1,%l6 and %l6,%l0,%l0 srl %l6,1,%l6 and %l6,0x1,%l1 srl %l6,1,%l6 and %l6,%l1,%l1 srl %l6,1,%l6 and %l6,0x1,%l2 srl %l6,1,%l6 and %l6,%l2,%l2 srl %l6,1,%l6 and %l6,0x1,%l3 srl %l6,1,%l6 and %l6,%l3,%l3 sll %l3,3,%l3 sll %l2,2,%l2 sll %l1,1,%l1 or %l0,%l1,%l0 or %l0,%l2,%l0 or %l0,%l3,%l0 and %l0,0xf,%l0 cmp %l0,0xf be not_pm nop or %l0,0x10,%l0 not_pm: ! Remove illegal combinations cmp %l0,0x17 be val_13 nop cmp %l0,0x1b be val_13 nop cmp %l0,0x1d be val_1c nop cmp %l0,0x1e be val_1c nop final_shift: sll %l0,8,%l4 or %l0,%l4,%g5 retl nop val_13: set 0x13,%l0 ba final_shift nop val_1c: set 0x1c,%l0 ba final_shift nop /****************************************************** * Exit code *******************************************************/ test_pass: EXIT_GOOD test_fail: EXIT_BAD