text: /*
   *  asm-i386/acpi.h
   *
   *  Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
   *  Copyright (C) 2001 Patrick Mochel <mochel@osdl.org>
    *
   * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   *
   *  This program is free software; you can redistribute it and/or modify
   *  it under the terms of the GNU General Public License as published by
   *  the Free Software Foundation; either version 2 of the License, or
   *  (at your option) any later version.
   *
   *  This program is distributed in the hope that it will be useful,
   *  but WITHOUT ANY WARRANTY; without even the implied warranty of
   *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   *  GNU General Public License for more details.
   *
   *  You should have received a copy of the GNU General Public License
   *  along with this program; if not, write to the Free Software
   *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   *
   * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   */
  
  #ifndef _ASM_ACPI_H
  #define _ASM_ACPI_H
  
  #ifdef __KERNEL__
  
  #include <acpi/pdc_intel.h>
  
  #include <asm/system.h>		/* defines cmpxchg */
  
  #define COMPILER_DEPENDENT_INT64   long long
  #define COMPILER_DEPENDENT_UINT64  unsigned long long
  
  /*
   * Calling conventions:
   *
   * ACPI_SYSTEM_XFACE        - Interfaces to host OS (handlers, threads)
   * ACPI_EXTERNAL_XFACE      - External ACPI interfaces
   * ACPI_INTERNAL_XFACE      - Internal ACPI interfaces
   * ACPI_INTERNAL_VAR_XFACE  - Internal variable-parameter list interfaces
   */
  #define ACPI_SYSTEM_XFACE
  #define ACPI_EXTERNAL_XFACE
  #define ACPI_INTERNAL_XFACE
  #define ACPI_INTERNAL_VAR_XFACE
  
  /* Asm macros */
  
  #define ACPI_ASM_MACROS
  #define BREAKPOINT3
  #define ACPI_DISABLE_IRQS() local_irq_disable()
  #define ACPI_ENABLE_IRQS()  local_irq_enable()
  #define ACPI_FLUSH_CPU_CACHE()	wbinvd()
  
  int __acpi_acquire_global_lock(unsigned int *lock);
  int __acpi_release_global_lock(unsigned int *lock);
  
  #define ACPI_ACQUIRE_GLOBAL_LOCK(facs, Acq) \
  	((Acq) = __acpi_acquire_global_lock(&facs->global_lock))
  
  #define ACPI_RELEASE_GLOBAL_LOCK(facs, Acq) \
  	((Acq) = __acpi_release_global_lock(&facs->global_lock))
  
  /*
   * Math helper asm macros
   */
  #define ACPI_DIV_64_BY_32(n_hi, n_lo, d32, q32, r32) \
          asm("divl %2;"        \
          :"=a"(q32), "=d"(r32) \
          :"r"(d32),            \
          "0"(n_lo), "1"(n_hi))
  
  
  #define ACPI_SHIFT_RIGHT_64(n_hi, n_lo) \
      asm("shrl   $1,%2;"             \
          "rcrl   $1,%3;"             \
          :"=r"(n_hi), "=r"(n_lo)     \
          :"0"(n_hi), "1"(n_lo))
  
  #ifdef CONFIG_X86_IO_APIC
  extern void check_acpi_pci(void);
  #else
  static inline void check_acpi_pci(void) { }
  #endif
  
  #ifdef CONFIG_ACPI
  extern int acpi_lapic;
  extern int acpi_ioapic;
  extern int acpi_noirq;
  extern int acpi_strict;
  extern int acpi_disabled;
  extern int acpi_ht;
  extern int acpi_pci_disabled;
  static inline void disable_acpi(void)
  {
  	acpi_disabled = 1;
  	acpi_ht = 0;
  	acpi_pci_disabled = 1;
  	acpi_noirq = 1;
  }
  
  /* Fixmap pages to reserve for ACPI boot-time tables (see fixmap.h) */
  #define FIX_ACPI_PAGES 4
  
  extern int acpi_gsi_to_irq(u32 gsi, unsigned int *irq);
  
  #ifdef CONFIG_X86_IO_APIC
  extern int acpi_skip_timer_override;
  extern int acpi_use_timer_override;
  #endif
  
  static inline void acpi_noirq_set(void) { acpi_noirq = 1; }
  static inline void acpi_disable_pci(void)
  {
  	acpi_pci_disabled = 1;
  	acpi_noirq_set();
  }
  extern int acpi_irq_balance_set(char *str);
  
  #else	/* !CONFIG_ACPI */
  
  #define acpi_lapic 0
  #define acpi_ioapic 0
  static inline void acpi_noirq_set(void) { }
  static inline void acpi_disable_pci(void) { }
  static inline void disable_acpi(void) { }
  
  #endif	/* !CONFIG_ACPI */
  
  
  #ifdef CONFIG_ACPI_SLEEP
  
  /* routines for saving/restoring kernel state */
  extern int acpi_save_state_mem(void);
  extern void acpi_restore_state_mem(void);
  
  extern unsigned long acpi_wakeup_address;
  
  /* early initialization routine */
  extern void acpi_reserve_bootmem(void);
  
  #endif /*CONFIG_ACPI_SLEEP*/
  
  #define ARCH_HAS_POWER_INIT	1
  
  #endif /*__KERNEL__*/
  
  #endif /*_ASM_ACPI_H*/
  