include/xen/acpi.h

   1 /******************************************************************************
   2  * acpi.h
   3  * acpi file for domain 0 kernel
   4  *
   5  * Copyright (c) 2011 Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
   6  * Copyright (c) 2011 Yu Ke <ke.yu@intel.com>
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License version 2
  10  * as published by the Free Software Foundation; or, when distributed
  11  * separately from the Linux kernel or incorporated into other
  12  * software packages, subject to the following license:
  13  *
  14  * Permission is hereby granted, free of charge, to any person obtaining a copy
  15  * of this source file (the "Software"), to deal in the Software without
  16  * restriction, including without limitation the rights to use, copy, modify,
  17  * merge, publish, distribute, sublicense, and/or sell copies of the Software,
  18  * and to permit persons to whom the Software is furnished to do so, subject to
  19  * the following conditions:
  20  *
  21  * The above copyright notice and this permission notice shall be included in
  22  * all copies or substantial portions of the Software.
  23  *
  24  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  25  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  26  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  27  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  28  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  29  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  30  * IN THE SOFTWARE.
  31  */
  32
  33 #ifndef _XEN_ACPI_H
  34 #define _XEN_ACPI_H
  35
  36 #include <linux/types.h>
  37
  38 #ifdef CONFIG_XEN_DOM0
  39 #include <asm/xen/hypervisor.h>
  40 #include <xen/xen.h>
  41 #include <linux/acpi.h>
  42
  43 int xen_acpi_notify_hypervisor_state(u8 sleep_state,
  44                                      u32 pm1a_cnt, u32 pm1b_cnd);
  45
  46 static inline void xen_acpi_sleep_register(void)
  47 {
  48         if (xen_initial_domain())
  49                 acpi_os_set_prepare_sleep(
  50                         &xen_acpi_notify_hypervisor_state);
  51 }
  52 #else
  53 static inline void xen_acpi_sleep_register(void)
  54 {
  55 }
  56 #endif
  57
  58 #endif  /* _XEN_ACPI_H */