/******************************************************************************
   *
   * Name: aclinuxex.h - Extra OS specific defines, etc. for Linux
   *
   *****************************************************************************/
  
  /*
   * Copyright (C) 2000 - 2014, Intel Corp.
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions, and the following disclaimer,
   *    without modification.
   * 2. Redistributions in binary form must reproduce at minimum a disclaimer
   *    substantially similar to the "NO WARRANTY" disclaimer below
   *    ("Disclaimer") and any redistribution must be conditioned upon
   *    including a substantially similar Disclaimer requirement for further
   *    binary redistribution.
   * 3. Neither the names of the above-listed copyright holders nor the names
   *    of any contributors may be used to endorse or promote products derived
   *    from this software without specific prior written permission.
   *
   * Alternatively, this software may be distributed under the terms of the
   * GNU General Public License ("GPL") version 2 as published by the Free
   * Software Foundation.
   *
   * NO WARRANTY
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
   * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
   * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGES.
   */
  
  #ifndef __ACLINUXEX_H__
  #define __ACLINUXEX_H__
  
  #ifdef __KERNEL__
  
  /*
   * Overrides for in-kernel ACPICA
   */
  acpi_status __init acpi_os_initialize(void);
  
  acpi_status acpi_os_terminate(void);
  
  /*
   * The irqs_disabled() check is for resume from RAM.
   * Interrupts are off during resume, just like they are for boot.
   * However, boot has  (system_state != SYSTEM_RUNNING)
   * to quiet __might_sleep() in kmalloc() and resume does not.
   */
  static inline void *acpi_os_allocate(acpi_size size)
  {
  	return kmalloc(size, irqs_disabled()? GFP_ATOMIC : GFP_KERNEL);
  }
  
  static inline void *acpi_os_allocate_zeroed(acpi_size size)
  {
  	return kzalloc(size, irqs_disabled()? GFP_ATOMIC : GFP_KERNEL);
  }
  
  static inline void acpi_os_free(void *memory)
  {
  	kfree(memory);
  }
  
  static inline void *acpi_os_acquire_object(acpi_cache_t * cache)
  {
  	return kmem_cache_zalloc(cache,
  				 irqs_disabled()? GFP_ATOMIC : GFP_KERNEL);
  }
  
  static inline acpi_thread_id acpi_os_get_thread_id(void)
  {
  	return (acpi_thread_id) (unsigned long)current;
  }
  
  /*
   * When lockdep is enabled, the spin_lock_init() macro stringifies it's
   * argument and uses that as a name for the lock in debugging.
   * By executing spin_lock_init() in a macro the key changes from "lock" for
   * all locks to the name of the argument of acpi_os_create_lock(), which
   * prevents lockdep from reporting false positives for ACPICA locks.
   */
  #define acpi_os_create_lock(__handle) \
  	({ \
  		spinlock_t *lock = ACPI_ALLOCATE(sizeof(*lock)); \
  		if (lock) { \
  			*(__handle) = lock; \
  			spin_lock_init(*(__handle)); \
  		} \
  		lock ? AE_OK : AE_NO_MEMORY; \
  	})

  /*
   * OSL interfaces added by Linux
   */
  void early_acpi_os_unmap_memory(void __iomem * virt, acpi_size size);
  
  #endif				/* __KERNEL__ */
  
  #endif				/* __ACLINUXEX_H__ */