include/asm-x86/acpi_64.h

   1 /*
   2  *  Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
   3  *  Copyright (C) 2001 Patrick Mochel <mochel@osdl.org>
   4  *
   5  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 2 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  *
  21  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  22  */
  23
  24 #ifndef _ASM_ACPI_H
  25 #define _ASM_ACPI_H
  26
  27 #ifdef __KERNEL__
  28
  29 #include <acpi/pdc_intel.h>
  30 #include <asm/numa.h>
  31
  32 #define COMPILER_DEPENDENT_INT64   long long
  33 #define COMPILER_DEPENDENT_UINT64  unsigned long long
  34
  35 /*
  36  * Calling conventions:
  37  *
  38  * ACPI_SYSTEM_XFACE        - Interfaces to host OS (handlers, threads)
  39  * ACPI_EXTERNAL_XFACE      - External ACPI interfaces
  40  * ACPI_INTERNAL_XFACE      - Internal ACPI interfaces
  41  * ACPI_INTERNAL_VAR_XFACE  - Internal variable-parameter list interfaces
  42  */
  43 #define ACPI_SYSTEM_XFACE
  44 #define ACPI_EXTERNAL_XFACE
  45 #define ACPI_INTERNAL_XFACE
  46 #define ACPI_INTERNAL_VAR_XFACE
  47
  48 /* Asm macros */
  49
  50 #define ACPI_ASM_MACROS
  51 #define BREAKPOINT3
  52 #define ACPI_DISABLE_IRQS() local_irq_disable()
  53 #define ACPI_ENABLE_IRQS()  local_irq_enable()
  54 #define ACPI_FLUSH_CPU_CACHE()  wbinvd()
  55
  56 int __acpi_acquire_global_lock(unsigned int *lock);
  57 int __acpi_release_global_lock(unsigned int *lock);
  58
  59 #define ACPI_ACQUIRE_GLOBAL_LOCK(facs, Acq) \
  60         ((Acq) = __acpi_acquire_global_lock(&facs->global_lock))
  61
  62 #define ACPI_RELEASE_GLOBAL_LOCK(facs, Acq) \
  63         ((Acq) = __acpi_release_global_lock(&facs->global_lock))
  64
  65 /*
  66  * Math helper asm macros
  67  */
  68 #define ACPI_DIV_64_BY_32(n_hi, n_lo, d32, q32, r32) \
  69         asm("divl %2;"        \
  70         :"=a"(q32), "=d"(r32) \
  71         :"r"(d32),            \
  72         "0"(n_lo), "1"(n_hi))
  73
  74
  75 #define ACPI_SHIFT_RIGHT_64(n_hi, n_lo) \
  76     asm("shrl   $1,%2;"             \
  77         "rcrl   $1,%3;"             \
  78         :"=r"(n_hi), "=r"(n_lo)     \
  79         :"0"(n_hi), "1"(n_lo))
  80
  81 #ifdef CONFIG_ACPI
  82 extern int acpi_lapic;
  83 extern int acpi_ioapic;
  84 extern int acpi_noirq;
  85 extern int acpi_strict;
  86 extern int acpi_disabled;
  87 extern int acpi_pci_disabled;
  88 extern int acpi_ht;
  89 static inline void disable_acpi(void)
  90 {
  91         acpi_disabled = 1;
  92         acpi_ht = 0;
  93         acpi_pci_disabled = 1;
  94         acpi_noirq = 1;
  95 }
  96
  97 /* Fixmap pages to reserve for ACPI boot-time tables (see fixmap.h) */
  98 #define FIX_ACPI_PAGES 4
  99
 100 extern int acpi_gsi_to_irq(u32 gsi, unsigned int *irq);
 101 static inline void acpi_noirq_set(void) { acpi_noirq = 1; }
 102 static inline void acpi_disable_pci(void)
 103 {
 104         acpi_pci_disabled = 1;
 105         acpi_noirq_set();
 106 }
 107 extern int acpi_irq_balance_set(char *str);
 108
 109 /* routines for saving/restoring kernel state */
 110 extern int acpi_save_state_mem(void);
 111 extern void acpi_restore_state_mem(void);
 112
 113 extern unsigned long acpi_wakeup_address;
 114
 115 /* early initialization routine */
 116 extern void acpi_reserve_bootmem(void);
 117
 118 #else   /* !CONFIG_ACPI */
 119
 120 #define acpi_lapic 0
 121 #define acpi_ioapic 0
 122 static inline void acpi_noirq_set(void) { }
 123 static inline void acpi_disable_pci(void) { }
 124
 125 #endif /* !CONFIG_ACPI */
 126
 127 extern int acpi_numa;
 128 extern int acpi_scan_nodes(unsigned long start, unsigned long end);
 129 #define NR_NODE_MEMBLKS (MAX_NUMNODES*2)
 130
 131 extern int acpi_disabled;
 132 extern int acpi_pci_disabled;
 133
 134 #define ARCH_HAS_POWER_INIT 1
 135
 136 extern int acpi_skip_timer_override;
 137 extern int acpi_use_timer_override;
 138
 139 #ifdef CONFIG_ACPI_NUMA
 140 extern void __init acpi_fake_nodes(const struct bootnode *fake_nodes,
 141                                    int num_nodes);
 142 #else
 143 static inline void acpi_fake_nodes(const struct bootnode *fake_nodes,
 144                                    int num_nodes)
 145 {
 146 }
 147 #endif
 148
 149 #endif /*__KERNEL__*/
 150
 151 #endif /*_ASM_ACPI_H*/