| /* |
| * barebox - interrupt.S Processing of interrupts and exception handling |
| * |
| * Copyright (c) 2005 blackfin.uclinux.org |
| * |
| * (C) Copyright 2000-2004 |
| * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
| * |
| * This file is based on interrupt.S |
| * |
| * Copyright (C) 2003 Metrowerks, Inc. <mwaddel@metrowerks.com> |
| * Copyright (C) 2002 Arcturus Networks Ltd. Ted Ma <mated@sympatico.ca> |
| * Copyright (C) 1998 D. Jeff Dionne <jeff@ryeham.ee.ryerson.ca>, |
| * Kenneth Albanowski <kjahds@kjahds.com>, |
| * The Silver Hammer Group, Ltd. |
| * |
| * (c) 1995, Dionne & Associates |
| * (c) 1995, DKG Display Tech. |
| * |
| * This file is also based on exception.asm |
| * (C) Copyright 2001-2005 - Analog Devices, Inc. All rights reserved. |
| * |
| * See file CREDITS for list of people who contributed to this |
| * project. |
| * |
| * 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; either version 2 of |
| * the License, or (at your option) any later version. |
| * |
| * 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 |
| */ |
| |
| #define ASSEMBLY |
| #include <config.h> |
| #include <asm/blackfin.h> |
| #include <asm/hw_irq.h> |
| #include <asm/entry.h> |
| #include <asm/blackfin_defs.h> |
| #include <asm/irq.h> |
| |
| .global _blackfin_irq_panic; |
| |
| .text |
| .align 2 |
| |
| #ifndef CONFIG_KGDB |
| .global _evt_emulation |
| _evt_emulation: |
| SAVE_CONTEXT |
| r0 = IRQ_EMU; |
| r1 = seqstat; |
| sp += -12; |
| call _blackfin_irq_panic; |
| sp += 12; |
| rte; |
| #endif |
| |
| .global _evt_nmi |
| _evt_nmi: |
| SAVE_CONTEXT |
| r0 = IRQ_NMI; |
| r1 = RETN; |
| sp += -12; |
| call _blackfin_irq_panic; |
| sp += 12; |
| |
| _evt_nmi_exit: |
| rtn; |
| |
| .global _trap |
| _trap: |
| SAVE_ALL_SYS |
| r0 = sp; /* stack frame pt_regs pointer argument ==> r0 */ |
| sp += -12; |
| call _trap_c |
| sp += 12; |
| RESTORE_ALL_SYS |
| rtx; |
| |
| .global _evt_ivhw |
| _evt_ivhw: |
| SAVE_CONTEXT |
| RAISE 14; |
| |
| _evt_ivhw_exit: |
| rti; |
| |
