LXR linux/arch/powerpc/platforms/pseries/event

   1/*
   2 * Copyright (C) 2001 Dave Engebretsen IBM Corporation
   3 *
   4 * This program is free software; you can redistribute it and/or modify
   5 * it under the terms of the GNU General Public License as published by
   6 * the Free Software Foundation; either version 2 of the License, or
   7 * (at your option) any later version.
   8 *
   9 * This program is distributed in the hope that it will be useful,
  10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 * GNU General Public License for more details.
  13 *
  14 * You should have received a copy of the GNU General Public License
  15 * along with this program; if not, write to the Free Software
  16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  17 */
  18
  19#include <asm/prom.h>
  20
  21#include "pseries.h"
  22
  23void request_event_sources_irqs(struct device_node *np,
  24                                irq_handler_t handler,
  25                                const char *name)
  26{
  27        int i, index, count = 0;
  28        struct of_phandle_args oirq;
  29        unsigned int virqs[16];
  30
  31        /* First try to do a proper OF tree parsing */
  32        for (index = 0; of_irq_parse_one(np, index, &oirq) == 0;
  33             index++) {
  34                if (count > 15)
  35                        break;
  36                virqs[count] = irq_create_of_mapping(&oirq);
  37                if (!virqs[count]) {
  38                        pr_err("event-sources: Unable to allocate "
  39                               "interrupt number for %s\n",
  40                               np->full_name);
  41                        WARN_ON(1);
  42                } else {
  43                        count++;
  44                }
  45        }
  46
  47        /* Now request them */
  48        for (i = 0; i < count; i++) {
  49                if (request_irq(virqs[i], handler, 0, name, NULL)) {
  50                        pr_err("event-sources: Unable to request interrupt "
  51                               "%d for %s\n", virqs[i], np->full_name);
  52                        WARN_ON(1);
  53                        return;
  54                }
  55        }
  56}
  57
  58