1 /* 2 * Interrupt and TLB miss handling support. 3 * 4 * Copyright (C) 2015, 2016 Paul Boddie <paul@boddie.org.uk> 5 * 6 * This program is free software: you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation, either version 3 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program. If not, see <http://www.gnu.org/licenses/>. 18 */ 19 20 .text 21 .extern tlb_handler 22 .extern interrupt_handler 23 .globl _tlb_entry 24 .globl _irq_entry 25 .globl _end_entries 26 .set noreorder 27 28 _tlb_entry: 29 move $k1, $gp 30 lui $gp, %hi(_GLOBAL_OFFSET_TABLE_) 31 ori $gp, $gp, %lo(_GLOBAL_OFFSET_TABLE_) 32 la $k0, tlb_handler 33 move $gp, $k1 34 jr $k0 35 nop 36 37 _irq_entry: 38 move $k1, $gp 39 lui $gp, %hi(_GLOBAL_OFFSET_TABLE_) 40 ori $gp, $gp, %lo(_GLOBAL_OFFSET_TABLE_) 41 la $k0, interrupt_handler 42 move $gp, $k1 43 jr $k0 44 nop 45 46 _end_entries: 47 48 .set reorder