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/export.h>
  25#include <linux/notifier.h>
  26#include <asm/spu.h>
  27#include "spufs/spufs.h"
  28
  29static BLOCKING_NOTIFIER_HEAD(spu_switch_notifier);
  30
  31void spu_switch_notify(struct spu *spu, struct spu_context *ctx)
  32{
  33        blocking_notifier_call_chain(&spu_switch_notifier,
  34                                     ctx ? ctx->object_id : 0, spu);
  35}
  36EXPORT_SYMBOL_GPL(spu_switch_notify);
  37
  38int spu_switch_event_register(struct notifier_block *n)
  39{
  40        int ret;
  41        ret = blocking_notifier_chain_register(&spu_switch_notifier, n);
  42        if (!ret)
  43                notify_spus_active();
  44        return ret;
  45}
  46EXPORT_SYMBOL_GPL(spu_switch_event_register);
  47
  48int spu_switch_event_unregister(struct notifier_block *n)
  49{
  50        return blocking_notifier_chain_unregister(&spu_switch_notifier, n);
  51}
  52EXPORT_SYMBOL_GPL(spu_switch_event_unregister);
  53
  54void spu_set_profile_private_kref(struct spu_context *ctx,
  55                                  struct kref *prof_info_kref,
  56                                  void (* prof_info_release) (struct kref *kref))
  57{
  58        ctx->prof_priv_kref = prof_info_kref;
  59        ctx->prof_priv_release = prof_info_release;
  60}
  61EXPORT_SYMBOL_GPL(spu_set_profile_private_kref);
  62
  63void *spu_get_profile_private_kref(struct spu_context *ctx)
  64{
  65        return ctx->prof_priv_kref;
  66}
  67EXPORT_SYMBOL_GPL(spu_get_profile_private_kref);
  68
  69