c6x: remove architecture

[sfrench/cifs-2.6.git] / arch / c6x / kernel / irq.c

diff --git a/arch/c6x/kernel/irq.c b/arch/c6x/kernel/irq.c
deleted file mode 100644 (file)
index e4c53d1..0000000
--- a/arch/c6x/kernel/irq.c
+++ /dev/null
@@ -1,127 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- *  Copyright (C) 2011-2012 Texas Instruments Incorporated
- *
- *  This borrows heavily from powerpc version, which is:
- *
- *  Derived from arch/i386/kernel/irq.c
- *    Copyright (C) 1992 Linus Torvalds
- *  Adapted from arch/i386 by Gary Thomas
- *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
- *  Updated and modified by Cort Dougan <cort@fsmlabs.com>
- *    Copyright (C) 1996-2001 Cort Dougan
- *  Adapted for Power Macintosh by Paul Mackerras
- *    Copyright (C) 1996 Paul Mackerras (paulus@cs.anu.edu.au)
- */
-#include <linux/slab.h>
-#include <linux/seq_file.h>
-#include <linux/radix-tree.h>
-#include <linux/module.h>
-#include <linux/of.h>
-#include <linux/of_irq.h>
-#include <linux/interrupt.h>
-#include <linux/kernel_stat.h>
-
-#include <asm/megamod-pic.h>
-#include <asm/special_insns.h>
-
-unsigned long irq_err_count;
-
-static DEFINE_RAW_SPINLOCK(core_irq_lock);
-
-static void mask_core_irq(struct irq_data *data)
-{
-       unsigned int prio = data->hwirq;
-
-       raw_spin_lock(&core_irq_lock);
-       and_creg(IER, ~(1 << prio));
-       raw_spin_unlock(&core_irq_lock);
-}
-
-static void unmask_core_irq(struct irq_data *data)
-{
-       unsigned int prio = data->hwirq;
-
-       raw_spin_lock(&core_irq_lock);
-       or_creg(IER, 1 << prio);
-       raw_spin_unlock(&core_irq_lock);
-}
-
-static struct irq_chip core_chip = {
-       .name           = "core",
-       .irq_mask       = mask_core_irq,
-       .irq_unmask     = unmask_core_irq,
-};
-
-static int prio_to_virq[NR_PRIORITY_IRQS];
-
-asmlinkage void c6x_do_IRQ(unsigned int prio, struct pt_regs *regs)
-{
-       struct pt_regs *old_regs = set_irq_regs(regs);
-
-       irq_enter();
-
-       generic_handle_irq(prio_to_virq[prio]);
-
-       irq_exit();
-
-       set_irq_regs(old_regs);
-}
-
-static struct irq_domain *core_domain;
-
-static int core_domain_map(struct irq_domain *h, unsigned int virq,
-                          irq_hw_number_t hw)
-{
-       if (hw < 4 || hw >= NR_PRIORITY_IRQS)
-               return -EINVAL;
-
-       prio_to_virq[hw] = virq;
-
-       irq_set_status_flags(virq, IRQ_LEVEL);
-       irq_set_chip_and_handler(virq, &core_chip, handle_level_irq);
-       return 0;
-}
-
-static const struct irq_domain_ops core_domain_ops = {
-       .map = core_domain_map,
-       .xlate = irq_domain_xlate_onecell,
-};
-
-void __init init_IRQ(void)
-{
-       struct device_node *np;
-
-       /* Mask all priority IRQs */
-       and_creg(IER, ~0xfff0);
-
-       np = of_find_compatible_node(NULL, NULL, "ti,c64x+core-pic");
-       if (np != NULL) {
-               /* create the core host */
-               core_domain = irq_domain_add_linear(np, NR_PRIORITY_IRQS,
-                                                   &core_domain_ops, NULL);
-               if (core_domain)
-                       irq_set_default_host(core_domain);
-               of_node_put(np);
-       }
-
-       printk(KERN_INFO "Core interrupt controller initialized\n");
-
-       /* now we're ready for other SoC controllers */
-       megamod_pic_init();
-
-       /* Clear all general IRQ flags */
-       set_creg(ICR, 0xfff0);
-}
-
-void ack_bad_irq(int irq)
-{
-       printk(KERN_ERR "IRQ: spurious interrupt %d\n", irq);
-       irq_err_count++;
-}
-
-int arch_show_interrupts(struct seq_file *p, int prec)
-{
-       seq_printf(p, "%*s: %10lu\n", prec, "Err", irq_err_count);
-       return 0;
-}