LXR uboot/arch/arm/lib/interrupts

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * (C) Copyright 2013
   4 * David Feng <fenghua@phytium.com.cn>
   5 */
   6
   7#include <common.h>
   8#include <linux/compiler.h>
   9#include <efi_loader.h>
  10
  11DECLARE_GLOBAL_DATA_PTR;
  12
  13int interrupt_init(void)
  14{
  15        return 0;
  16}
  17
  18void enable_interrupts(void)
  19{
  20        return;
  21}
  22
  23int disable_interrupts(void)
  24{
  25        return 0;
  26}
  27
  28void show_regs(struct pt_regs *regs)
  29{
  30        int i;
  31
  32        if (gd->flags & GD_FLG_RELOC)
  33                printf("elr: %016lx lr : %016lx (reloc)\n",
  34                       regs->elr - gd->reloc_off,
  35                       regs->regs[30] - gd->reloc_off);
  36        printf("elr: %016lx lr : %016lx\n", regs->elr, regs->regs[30]);
  37
  38        for (i = 0; i < 29; i += 2)
  39                printf("x%-2d: %016lx x%-2d: %016lx\n",
  40                       i, regs->regs[i], i+1, regs->regs[i+1]);
  41        printf("\n");
  42}
  43
  44/*
  45 * do_bad_sync handles the impossible case in the Synchronous Abort vector.
  46 */
  47void do_bad_sync(struct pt_regs *pt_regs, unsigned int esr)
  48{
  49        efi_restore_gd();
  50        printf("Bad mode in \"Synchronous Abort\" handler, esr 0x%08x\n", esr);
  51        show_regs(pt_regs);
  52        panic("Resetting CPU ...\n");
  53}
  54
  55/*
  56 * do_bad_irq handles the impossible case in the Irq vector.
  57 */
  58void do_bad_irq(struct pt_regs *pt_regs, unsigned int esr)
  59{
  60        efi_restore_gd();
  61        printf("Bad mode in \"Irq\" handler, esr 0x%08x\n", esr);
  62        show_regs(pt_regs);
  63        panic("Resetting CPU ...\n");
  64}
  65
  66/*
  67 * do_bad_fiq handles the impossible case in the Fiq vector.
  68 */
  69void do_bad_fiq(struct pt_regs *pt_regs, unsigned int esr)
  70{
  71        efi_restore_gd();
  72        printf("Bad mode in \"Fiq\" handler, esr 0x%08x\n", esr);
  73        show_regs(pt_regs);
  74        panic("Resetting CPU ...\n");
  75}
  76
  77/*
  78 * do_bad_error handles the impossible case in the Error vector.
  79 */
  80void do_bad_error(struct pt_regs *pt_regs, unsigned int esr)
  81{
  82        efi_restore_gd();
  83        printf("Bad mode in \"Error\" handler, esr 0x%08x\n", esr);
  84        show_regs(pt_regs);
  85        panic("Resetting CPU ...\n");
  86}
  87
  88/*
  89 * do_sync handles the Synchronous Abort exception.
  90 */
  91void do_sync(struct pt_regs *pt_regs, unsigned int esr)
  92{
  93        efi_restore_gd();
  94        printf("\"Synchronous Abort\" handler, esr 0x%08x\n", esr);
  95        show_regs(pt_regs);
  96        panic("Resetting CPU ...\n");
  97}
  98
  99/*
 100 * do_irq handles the Irq exception.
 101 */
 102void do_irq(struct pt_regs *pt_regs, unsigned int esr)
 103{
 104        efi_restore_gd();
 105        printf("\"Irq\" handler, esr 0x%08x\n", esr);
 106        show_regs(pt_regs);
 107        panic("Resetting CPU ...\n");
 108}
 109
 110/*
 111 * do_fiq handles the Fiq exception.
 112 */
 113void do_fiq(struct pt_regs *pt_regs, unsigned int esr)
 114{
 115        efi_restore_gd();
 116        printf("\"Fiq\" handler, esr 0x%08x\n", esr);
 117        show_regs(pt_regs);
 118        panic("Resetting CPU ...\n");
 119}
 120
 121/*
 122 * do_error handles the Error exception.
 123 * Errors are more likely to be processor specific,
 124 * it is defined with weak attribute and can be redefined
 125 * in processor specific code.
 126 */
 127void __weak do_error(struct pt_regs *pt_regs, unsigned int esr)
 128{
 129        efi_restore_gd();
 130        printf("\"Error\" handler, esr 0x%08x\n", esr);
 131        show_regs(pt_regs);
 132        panic("Resetting CPU ...\n");
 133}
 134