| /* |
| * Copyright 2011 Freescale Semiconductor, Inc. |
| * Copyright 2011 Linaro Ltd. |
| * |
| * The code contained herein is licensed under the GNU General Public |
| * License. You may obtain a copy of the GNU General Public License |
| * Version 2 or later at the following locations: |
| * |
| * http://www.opensource.org/licenses/gpl-license.html |
| * http://www.gnu.org/copyleft/gpl.html |
| */ |
| |
| #include <linux/io.h> |
| #include <asm/exception.h> |
| #include <asm/localtimer.h> |
| #include <asm/hardware/gic.h> |
| #ifdef CONFIG_SMP |
| #include <asm/smp.h> |
| #endif |
| |
| asmlinkage void __exception_irq_entry gic_handle_irq(struct pt_regs *regs) |
| { |
| u32 irqstat, irqnr; |
| |
| do { |
| irqstat = readl_relaxed(gic_cpu_base_addr + GIC_CPU_INTACK); |
| irqnr = irqstat & 0x3ff; |
| if (irqnr == 1023) |
| break; |
| |
| if (irqnr > 15 && irqnr < 1021) |
| handle_IRQ(irqnr, regs); |
| #ifdef CONFIG_SMP |
| else { |
| writel_relaxed(irqstat, gic_cpu_base_addr + |
| GIC_CPU_EOI); |
| handle_IPI(irqnr, regs); |
| } |
| #endif |
| } while (1); |
| } |
