LXR linux/arch/mips/generic/irq.c

   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 * Copyright (C) 2016 Imagination Technologies
   4 * Author: Paul Burton <paul.burton@mips.com>
   5 */
   6
   7#include <linux/clk.h>
   8#include <linux/clk-provider.h>
   9#include <linux/clocksource.h>
  10#include <linux/init.h>
  11#include <linux/types.h>
  12
  13#include <asm/irq.h>
  14#include <asm/mips-cps.h>
  15#include <asm/time.h>
  16
  17int get_c0_fdc_int(void)
  18{
  19        int mips_cpu_fdc_irq;
  20
  21        if (mips_gic_present())
  22                mips_cpu_fdc_irq = gic_get_c0_fdc_int();
  23        else if (cpu_has_veic)
  24                panic("Unimplemented!");
  25        else if (cp0_fdc_irq >= 0)
  26                mips_cpu_fdc_irq = MIPS_CPU_IRQ_BASE + cp0_fdc_irq;
  27        else
  28                mips_cpu_fdc_irq = -1;
  29
  30        return mips_cpu_fdc_irq;
  31}
  32
  33int get_c0_perfcount_int(void)
  34{
  35        int mips_cpu_perf_irq;
  36
  37        if (mips_gic_present())
  38                mips_cpu_perf_irq = gic_get_c0_perfcount_int();
  39        else if (cpu_has_veic)
  40                panic("Unimplemented!");
  41        else if (cp0_perfcount_irq >= 0)
  42                mips_cpu_perf_irq = MIPS_CPU_IRQ_BASE + cp0_perfcount_irq;
  43        else
  44                mips_cpu_perf_irq = -1;
  45
  46        return mips_cpu_perf_irq;
  47}
  48
  49unsigned int get_c0_compare_int(void)
  50{
  51        int mips_cpu_timer_irq;
  52
  53        if (mips_gic_present())
  54                mips_cpu_timer_irq = gic_get_c0_compare_int();
  55        else if (cpu_has_veic)
  56                panic("Unimplemented!");
  57        else
  58                mips_cpu_timer_irq = MIPS_CPU_IRQ_BASE + cp0_compare_irq;
  59
  60        return mips_cpu_timer_irq;
  61}
  62