/*
   * ESI service calls.
   *
   * Copyright (c) Copyright 2005-2006 Hewlett-Packard Development Company, L.P.
   * 	Alex Williamson <alex.williamson@hp.com>
   */
  #ifndef esi_h
  #define esi_h
  
  #include <linux/efi.h>
  
  #define ESI_QUERY			0x00000001
  #define ESI_OPEN_HANDLE			0x02000000
  #define ESI_CLOSE_HANDLE		0x02000001
  
  enum esi_proc_type {
  	ESI_PROC_SERIALIZED,	/* calls need to be serialized */
  	ESI_PROC_MP_SAFE,	/* MP-safe, but not reentrant */
  	ESI_PROC_REENTRANT	/* MP-safe and reentrant */
  };

  extern struct ia64_sal_retval esi_call_phys (void *, u64 *);
  extern int ia64_esi_call(efi_guid_t, struct ia64_sal_retval *,
  			 enum esi_proc_type,
  			 u64, u64, u64, u64, u64, u64, u64, u64);
  extern int ia64_esi_call_phys(efi_guid_t, struct ia64_sal_retval *, u64, u64,
                                u64, u64, u64, u64, u64, u64);
  
  #endif /* esi_h */