| /* |
| * Copyright (C) 2000 RidgeRun, Inc. |
| * Author: RidgeRun, Inc. |
| * glonnon@ridgerun.com, skranz@ridgerun.com, stevej@ridgerun.com |
| * |
| * Copyright 2001 MontaVista Software Inc. |
| * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net |
| * Copyright (C) 2000, 2001, 2003 Ralf Baechle (ralf@gnu.org) |
| * |
| * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN |
| * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
| * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| * 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., |
| * 675 Mass Ave, Cambridge, MA 02139, USA. |
| * |
| */ |
| #include <linux/errno.h> |
| #include <linux/init.h> |
| #include <linux/kernel_stat.h> |
| #include <linux/module.h> |
| #include <linux/signal.h> |
| #include <linux/sched.h> |
| #include <linux/types.h> |
| #include <linux/interrupt.h> |
| #include <linux/ioport.h> |
| #include <linux/timex.h> |
| #include <linux/slab.h> |
| #include <linux/random.h> |
| #include <linux/bitops.h> |
| #include <asm/bootinfo.h> |
| #include <asm/io.h> |
| #include <asm/irq.h> |
| #include <asm/irq_cpu.h> |
| #include <asm/mipsregs.h> |
| #include <asm/system.h> |
| |
| asmlinkage void plat_irq_dispatch(struct pt_regs *regs) |
| { |
| unsigned int pending = read_c0_status() & read_c0_cause(); |
| |
| if (pending & STATUSF_IP2) /* int0 hardware line */ |
| do_IRQ(2, regs); |
| else if (pending & STATUSF_IP3) /* int1 hardware line */ |
| do_IRQ(3, regs); |
| else if (pending & STATUSF_IP4) /* int2 hardware line */ |
| do_IRQ(4, regs); |
| else if (pending & STATUSF_IP5) /* int3 hardware line */ |
| do_IRQ(5, regs); |
| else if (pending & STATUSF_IP6) /* int4 hardware line */ |
| do_IRQ(6, regs); |
| else if (pending & STATUSF_IP7) /* cpu timer */ |
| do_IRQ(7, regs); |
| else { |
| /* |
| * Now look at the extended interrupts |
| */ |
| pending = (read_c0_cause() & (read_c0_intcontrol() << 8)) >> 16; |
| |
| if (pending & STATUSF_IP8) /* int6 hardware line */ |
| do_IRQ(8, regs); |
| else if (pending & STATUSF_IP9) /* int7 hardware line */ |
| do_IRQ(9, regs); |
| else if (pending & STATUSF_IP10) /* int8 hardware line */ |
| do_IRQ(10, regs); |
| else if (pending & STATUSF_IP11) /* int9 hardware line */ |
| do_IRQ(11, regs); |
| } |
| } |
| |
| void __init arch_init_irq(void) |
| { |
| /* |
| * Clear all of the interrupts while we change the able around a bit. |
| * int-handler is not on bootstrap |
| */ |
| clear_c0_status(ST0_IM); |
| local_irq_disable(); |
| |
| mips_cpu_irq_init(0); |
| rm7k_cpu_irq_init(8); |
| } |
