LXR linux/arch/powerpc/platforms/cell/spu

   1/*
   2 * Move OProfile dependencies from spufs module to the kernel so it
   3 * can run on non-cell PPC.
   4 *
   5 * Copyright (C) IBM 2005
   6 *
   7 * This program is free software; you can redistribute it and/or modify
   8 * it under the terms of the GNU General Public License as published by
   9 * the Free Software Foundation; either version 2, or (at your option)
  10 * any later version.
  11 *
  12 * This program is distributed in the hope that it will be useful,
  13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 * GNU General Public License for more details.
  16 *
  17 * You should have received a copy of the GNU General Public License
  18 * along with this program; if not, write to the Free Software
  19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20 */
  21
  22#undef DEBUG
  23
  24#include <linux/module.h>
  25#include <asm/spu.h>
  26#include "spufs/spufs.h"
  27
  28static BLOCKING_NOTIFIER_HEAD(spu_switch_notifier);
  29
  30void spu_switch_notify(struct spu *spu, struct spu_context *ctx)
  31{
  32        blocking_notifier_call_chain(&spu_switch_notifier,
  33                                     ctx ? ctx->object_id : 0, spu);
  34}
  35EXPORT_SYMBOL_GPL(spu_switch_notify);
  36
  37int spu_switch_event_register(struct notifier_block *n)
  38{
  39        int ret;
  40        ret = blocking_notifier_chain_register(&spu_switch_notifier, n);
  41        if (!ret)
  42                notify_spus_active();
  43        return ret;
  44}
  45EXPORT_SYMBOL_GPL(spu_switch_event_register);
  46
  47int spu_switch_event_unregister(struct notifier_block *n)
  48{
  49        return blocking_notifier_chain_unregister(&spu_switch_notifier, n);
  50}
  51EXPORT_SYMBOL_GPL(spu_switch_event_unregister);
  52
  53void spu_set_profile_private_kref(struct spu_context *ctx,
  54                                  struct kref *prof_info_kref,
  55                                  void (* prof_info_release) (struct kref *kref))
  56{
  57        ctx->prof_priv_kref = prof_info_kref;
  58        ctx->prof_priv_release = prof_info_release;
  59}
  60EXPORT_SYMBOL_GPL(spu_set_profile_private_kref);
  61
  62void *spu_get_profile_private_kref(struct spu_context *ctx)
  63{
  64        return ctx->prof_priv_kref;
  65}
  66EXPORT_SYMBOL_GPL(spu_get_profile_private_kref);
  67
  68