include/asm-x86_64/acpi.h

   1 /*
   2  *  asm-x86_64/acpi.h
   3  *
   4  *  Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
   5  *  Copyright (C) 2001 Patrick Mochel <mochel@osdl.org>
   6   *
   7  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   8  *
   9  *  This program is free software; you can redistribute it and/or modify
  10  *  it under the terms of the GNU General Public License as published by
  11  *  the Free Software Foundation; either version 2 of the License, or
  12  *  (at your option) any later version.
  13  *
  14  *  This program is distributed in the hope that it will be useful,
  15  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *  GNU General Public License for more details.
  18  *
  19  *  You should have received a copy of the GNU General Public License
  20  *  along with this program; if not, write to the Free Software
  21  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  22  *
  23  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  24  */
  25
  26 #ifndef _ASM_ACPI_H
  27 #define _ASM_ACPI_H
  28
  29 #ifdef __KERNEL__
  30
  31 #include <acpi/pdc_intel.h>
  32
  33 #define COMPILER_DEPENDENT_INT64   long long
  34 #define COMPILER_DEPENDENT_UINT64  unsigned long long
  35
  36 /*
  37  * Calling conventions:
  38  *
  39  * ACPI_SYSTEM_XFACE        - Interfaces to host OS (handlers, threads)
  40  * ACPI_EXTERNAL_XFACE      - External ACPI interfaces
  41  * ACPI_INTERNAL_XFACE      - Internal ACPI interfaces
  42  * ACPI_INTERNAL_VAR_XFACE  - Internal variable-parameter list interfaces
  43  */
  44 #define ACPI_SYSTEM_XFACE
  45 #define ACPI_EXTERNAL_XFACE
  46 #define ACPI_INTERNAL_XFACE
  47 #define ACPI_INTERNAL_VAR_XFACE
  48
  49 /* Asm macros */
  50
  51 #define ACPI_ASM_MACROS
  52 #define BREAKPOINT3
  53 #define ACPI_DISABLE_IRQS() local_irq_disable()
  54 #define ACPI_ENABLE_IRQS()  local_irq_enable()
  55 #define ACPI_FLUSH_CPU_CACHE()  wbinvd()
  56
  57 int __acpi_acquire_global_lock(unsigned int *lock);
  58 int __acpi_release_global_lock(unsigned int *lock);
  59
  60 #define ACPI_ACQUIRE_GLOBAL_LOCK(facs, Acq) \
  61         ((Acq) = __acpi_acquire_global_lock(&facs->global_lock))
  62
  63 #define ACPI_RELEASE_GLOBAL_LOCK(facs, Acq) \
  64         ((Acq) = __acpi_release_global_lock(&facs->global_lock))
  65
  66 /*
  67  * Math helper asm macros
  68  */
  69 #define ACPI_DIV_64_BY_32(n_hi, n_lo, d32, q32, r32) \
  70         asm("divl %2;"        \
  71         :"=a"(q32), "=d"(r32) \
  72         :"r"(d32),            \
  73         "0"(n_lo), "1"(n_hi))
  74
  75
  76 #define ACPI_SHIFT_RIGHT_64(n_hi, n_lo) \
  77     asm("shrl   $1,%2;"             \
  78         "rcrl   $1,%3;"             \
  79         :"=r"(n_hi), "=r"(n_lo)     \
  80         :"0"(n_hi), "1"(n_lo))
  81
  82 #ifdef CONFIG_ACPI
  83 extern int acpi_lapic;
  84 extern int acpi_ioapic;
  85 extern int acpi_noirq;
  86 extern int acpi_strict;
  87 extern int acpi_disabled;
  88 extern int acpi_pci_disabled;
  89 extern int acpi_ht;
  90 static inline void disable_acpi(void)
  91 {
  92         acpi_disabled = 1;
  93         acpi_ht = 0;
  94         acpi_pci_disabled = 1;
  95         acpi_noirq = 1;
  96 }
  97
  98 /* Fixmap pages to reserve for ACPI boot-time tables (see fixmap.h) */
  99 #define FIX_ACPI_PAGES 4
 100
 101 extern int acpi_gsi_to_irq(u32 gsi, unsigned int *irq);
 102 static inline void acpi_noirq_set(void) { acpi_noirq = 1; }
 103 static inline void acpi_disable_pci(void)
 104 {
 105         acpi_pci_disabled = 1;
 106         acpi_noirq_set();
 107 }
 108 extern int acpi_irq_balance_set(char *str);
 109
 110 #else   /* !CONFIG_ACPI */
 111
 112 #define acpi_lapic 0
 113 #define acpi_ioapic 0
 114 static inline void acpi_noirq_set(void) { }
 115 static inline void acpi_disable_pci(void) { }
 116
 117 #endif /* !CONFIG_ACPI */
 118
 119 extern int acpi_numa;
 120 extern int acpi_scan_nodes(unsigned long start, unsigned long end);
 121 #define NR_NODE_MEMBLKS (MAX_NUMNODES*2)
 122
 123 #ifdef CONFIG_ACPI_SLEEP
 124
 125 /* routines for saving/restoring kernel state */
 126 extern int acpi_save_state_mem(void);
 127 extern void acpi_restore_state_mem(void);
 128
 129 extern unsigned long acpi_wakeup_address;
 130
 131 /* early initialization routine */
 132 extern void acpi_reserve_bootmem(void);
 133
 134 #endif /*CONFIG_ACPI_SLEEP*/
 135
 136 extern int acpi_disabled;
 137 extern int acpi_pci_disabled;
 138
 139 #define ARCH_HAS_POWER_INIT 1
 140
 141 extern int acpi_skip_timer_override;
 142 extern int acpi_use_timer_override;
 143
 144 #endif /*__KERNEL__*/
 145
 146 #endif /*_ASM_ACPI_H*/