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 #include <asm/numa.h>
  33
  34 #define COMPILER_DEPENDENT_INT64   long long
  35 #define COMPILER_DEPENDENT_UINT64  unsigned long long
  36
  37 /*
  38  * Calling conventions:
  39  *
  40  * ACPI_SYSTEM_XFACE        - Interfaces to host OS (handlers, threads)
  41  * ACPI_EXTERNAL_XFACE      - External ACPI interfaces
  42  * ACPI_INTERNAL_XFACE      - Internal ACPI interfaces
  43  * ACPI_INTERNAL_VAR_XFACE  - Internal variable-parameter list interfaces
  44  */
  45 #define ACPI_SYSTEM_XFACE
  46 #define ACPI_EXTERNAL_XFACE
  47 #define ACPI_INTERNAL_XFACE
  48 #define ACPI_INTERNAL_VAR_XFACE
  49
  50 /* Asm macros */
  51
  52 #define ACPI_ASM_MACROS
  53 #define BREAKPOINT3
  54 #define ACPI_DISABLE_IRQS() local_irq_disable()
  55 #define ACPI_ENABLE_IRQS()  local_irq_enable()
  56 #define ACPI_FLUSH_CPU_CACHE()  wbinvd()
  57
  58 int __acpi_acquire_global_lock(unsigned int *lock);
  59 int __acpi_release_global_lock(unsigned int *lock);
  60
  61 #define ACPI_ACQUIRE_GLOBAL_LOCK(facs, Acq) \
  62         ((Acq) = __acpi_acquire_global_lock(&facs->global_lock))
  63
  64 #define ACPI_RELEASE_GLOBAL_LOCK(facs, Acq) \
  65         ((Acq) = __acpi_release_global_lock(&facs->global_lock))
  66
  67 /*
  68  * Math helper asm macros
  69  */
  70 #define ACPI_DIV_64_BY_32(n_hi, n_lo, d32, q32, r32) \
  71         asm("divl %2;"        \
  72         :"=a"(q32), "=d"(r32) \
  73         :"r"(d32),            \
  74         "0"(n_lo), "1"(n_hi))
  75
  76
  77 #define ACPI_SHIFT_RIGHT_64(n_hi, n_lo) \
  78     asm("shrl   $1,%2;"             \
  79         "rcrl   $1,%3;"             \
  80         :"=r"(n_hi), "=r"(n_lo)     \
  81         :"0"(n_hi), "1"(n_lo))
  82
  83 #ifdef CONFIG_ACPI
  84 extern int acpi_lapic;
  85 extern int acpi_ioapic;
  86 extern int acpi_noirq;
  87 extern int acpi_strict;
  88 extern int acpi_disabled;
  89 extern int acpi_pci_disabled;
  90 extern int acpi_ht;
  91 static inline void disable_acpi(void)
  92 {
  93         acpi_disabled = 1;
  94         acpi_ht = 0;
  95         acpi_pci_disabled = 1;
  96         acpi_noirq = 1;
  97 }
  98
  99 /* Fixmap pages to reserve for ACPI boot-time tables (see fixmap.h) */
 100 #define FIX_ACPI_PAGES 4
 101
 102 extern int acpi_gsi_to_irq(u32 gsi, unsigned int *irq);
 103 static inline void acpi_noirq_set(void) { acpi_noirq = 1; }
 104 static inline void acpi_disable_pci(void)
 105 {
 106         acpi_pci_disabled = 1;
 107         acpi_noirq_set();
 108 }
 109 extern int acpi_irq_balance_set(char *str);
 110
 111 /* routines for saving/restoring kernel state */
 112 extern int acpi_save_state_mem(void);
 113 extern void acpi_restore_state_mem(void);
 114
 115 extern unsigned long acpi_wakeup_address;
 116
 117 /* early initialization routine */
 118 extern void acpi_reserve_bootmem(void);
 119
 120 #else   /* !CONFIG_ACPI */
 121
 122 #define acpi_lapic 0
 123 #define acpi_ioapic 0
 124 static inline void acpi_noirq_set(void) { }
 125 static inline void acpi_disable_pci(void) { }
 126
 127 #endif /* !CONFIG_ACPI */
 128
 129 extern int acpi_numa;
 130 extern int acpi_scan_nodes(unsigned long start, unsigned long end);
 131 #define NR_NODE_MEMBLKS (MAX_NUMNODES*2)
 132
 133 extern int acpi_disabled;
 134 extern int acpi_pci_disabled;
 135
 136 #define ARCH_HAS_POWER_INIT 1
 137
 138 extern int acpi_skip_timer_override;
 139 extern int acpi_use_timer_override;
 140
 141 #ifdef CONFIG_ACPI_NUMA
 142 extern void __init acpi_fake_nodes(const struct bootnode *fake_nodes,
 143                                    int num_nodes);
 144 #else
 145 static inline void acpi_fake_nodes(const struct bootnode *fake_nodes,
 146                                    int num_nodes)
 147 {
 148 }
 149 #endif
 150
 151 #endif /*__KERNEL__*/
 152
 153 #endif /*_ASM_ACPI_H*/