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Diffstat (limited to 'arch/mips/vr41xx/common/irq.c')
-rw-r--r--arch/mips/vr41xx/common/irq.c124
1 files changed, 0 insertions, 124 deletions
diff --git a/arch/mips/vr41xx/common/irq.c b/arch/mips/vr41xx/common/irq.c
deleted file mode 100644
index 28211f3ee329..000000000000
--- a/arch/mips/vr41xx/common/irq.c
+++ /dev/null
@@ -1,124 +0,0 @@
-/*
- * Interrupt handing routines for NEC VR4100 series.
- *
- * Copyright (C) 2005-2007 Yoichi Yuasa <yuasa@linux-mips.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 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
- */
-#include <linux/export.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-
-#include <asm/irq_cpu.h>
-#include <asm/vr41xx/irq.h>
-
-typedef struct irq_cascade {
- int (*get_irq)(unsigned int);
-} irq_cascade_t;
-
-static irq_cascade_t irq_cascade[NR_IRQS] __cacheline_aligned;
-
-static struct irqaction cascade_irqaction = {
- .handler = no_action,
- .name = "cascade",
- .flags = IRQF_NO_THREAD,
-};
-
-int cascade_irq(unsigned int irq, int (*get_irq)(unsigned int))
-{
- int retval = 0;
-
- if (irq >= NR_IRQS)
- return -EINVAL;
-
- if (irq_cascade[irq].get_irq != NULL)
- free_irq(irq, NULL);
-
- irq_cascade[irq].get_irq = get_irq;
-
- if (get_irq != NULL) {
- retval = setup_irq(irq, &cascade_irqaction);
- if (retval < 0)
- irq_cascade[irq].get_irq = NULL;
- }
-
- return retval;
-}
-
-EXPORT_SYMBOL_GPL(cascade_irq);
-
-static void irq_dispatch(unsigned int irq)
-{
- irq_cascade_t *cascade;
-
- if (irq >= NR_IRQS) {
- atomic_inc(&irq_err_count);
- return;
- }
-
- cascade = irq_cascade + irq;
- if (cascade->get_irq != NULL) {
- struct irq_desc *desc = irq_to_desc(irq);
- struct irq_data *idata = irq_desc_get_irq_data(desc);
- struct irq_chip *chip = irq_desc_get_chip(desc);
- int ret;
-
- if (chip->irq_mask_ack)
- chip->irq_mask_ack(idata);
- else {
- chip->irq_mask(idata);
- chip->irq_ack(idata);
- }
- ret = cascade->get_irq(irq);
- irq = ret;
- if (ret < 0)
- atomic_inc(&irq_err_count);
- else
- irq_dispatch(irq);
- if (!irqd_irq_disabled(idata) && chip->irq_unmask)
- chip->irq_unmask(idata);
- } else
- do_IRQ(irq);
-}
-
-asmlinkage void plat_irq_dispatch(void)
-{
- unsigned int pending = read_c0_cause() & read_c0_status() & ST0_IM;
-
- if (pending & CAUSEF_IP7)
- do_IRQ(TIMER_IRQ);
- else if (pending & 0x7800) {
- if (pending & CAUSEF_IP3)
- irq_dispatch(INT1_IRQ);
- else if (pending & CAUSEF_IP4)
- irq_dispatch(INT2_IRQ);
- else if (pending & CAUSEF_IP5)
- irq_dispatch(INT3_IRQ);
- else if (pending & CAUSEF_IP6)
- irq_dispatch(INT4_IRQ);
- } else if (pending & CAUSEF_IP2)
- irq_dispatch(INT0_IRQ);
- else if (pending & CAUSEF_IP0)
- do_IRQ(MIPS_SOFTINT0_IRQ);
- else if (pending & CAUSEF_IP1)
- do_IRQ(MIPS_SOFTINT1_IRQ);
- else
- spurious_interrupt();
-}
-
-void __init arch_init_irq(void)
-{
- mips_cpu_irq_init();
-}