1 /* 2 * asm-i386/acpi.h 3 * 4 * Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh (at) intel.com> 5 * Copyright (C) 2001 Patrick Mochel <mochel (at) 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 #include <asm/system.h> /* defines cmpxchg */ 34 35 #define COMPILER_DEPENDENT_INT64 long long 36 #define COMPILER_DEPENDENT_UINT64 unsigned long long 37 38 /* 39 * Calling conventions: 40 * 41 * ACPI_SYSTEM_XFACE - Interfaces to host OS (handlers, threads) 42 * ACPI_EXTERNAL_XFACE - External ACPI interfaces 43 * ACPI_INTERNAL_XFACE - Internal ACPI interfaces 44 * ACPI_INTERNAL_VAR_XFACE - Internal variable-parameter list interfaces 45 */ 46 #define ACPI_SYSTEM_XFACE 47 #define ACPI_EXTERNAL_XFACE 48 #define ACPI_INTERNAL_XFACE 49 #define ACPI_INTERNAL_VAR_XFACE 50 51 /* Asm macros */ 52 53 #define ACPI_ASM_MACROS 54 #define BREAKPOINT3 55 #define ACPI_DISABLE_IRQS() local_irq_disable() 56 #define ACPI_ENABLE_IRQS() local_irq_enable() 57 #define ACPI_FLUSH_CPU_CACHE() wbinvd() 58 59 int __acpi_acquire_global_lock(unsigned int *lock); 60 int __acpi_release_global_lock(unsigned int *lock); 61 62 #define ACPI_ACQUIRE_GLOBAL_LOCK(facs, Acq) \ 63 ((Acq) = __acpi_acquire_global_lock(&facs->global_lock)) 64 65 #define ACPI_RELEASE_GLOBAL_LOCK(facs, Acq) \ 66 ((Acq) = __acpi_release_global_lock(&facs->global_lock)) 67 68 /* 69 * Math helper asm macros 70 */ 71 #define ACPI_DIV_64_BY_32(n_hi, n_lo, d32, q32, r32) \ 72 asm("divl %2;" \ 73 :"=a"(q32), "=d"(r32) \ 74 :"r"(d32), \ 75 "0"(n_lo), "1"(n_hi)) 76 77 78 #define ACPI_SHIFT_RIGHT_64(n_hi, n_lo) \ 79 asm("shrl $1,%2;" \ 80 "rcrl $1,%3;" \ 81 :"=r"(n_hi), "=r"(n_lo) \ 82 :"0"(n_hi), "1"(n_lo)) 83 84 extern void early_quirks(void); 85 86 #ifdef CONFIG_ACPI 87 extern int acpi_lapic; 88 extern int acpi_ioapic; 89 extern int acpi_noirq; 90 extern int acpi_strict; 91 extern int acpi_disabled; 92 extern int acpi_ht; 93 extern int acpi_pci_disabled; 94 static inline void disable_acpi(void) 95 { 96 acpi_disabled = 1; 97 acpi_ht = 0; 98 acpi_pci_disabled = 1; 99 acpi_noirq = 1; 100 } 101 102 /* Fixmap pages to reserve for ACPI boot-time tables (see fixmap.h) */ 103 #define FIX_ACPI_PAGES 4 104 105 extern int acpi_gsi_to_irq(u32 gsi, unsigned int *irq); 106 107 #ifdef CONFIG_X86_IO_APIC 108 extern int acpi_skip_timer_override; 109 extern int acpi_use_timer_override; 110 #endif 111 112 static inline void acpi_noirq_set(void) { acpi_noirq = 1; } 113 static inline void acpi_disable_pci(void) 114 { 115 acpi_pci_disabled = 1; 116 acpi_noirq_set(); 117 } 118 extern int acpi_irq_balance_set(char *str); 119 120 /* routines for saving/restoring kernel state */ 121 extern int acpi_save_state_mem(void); 122 extern void acpi_restore_state_mem(void); 123 124 extern unsigned long acpi_wakeup_address; 125 126 /* early initialization routine */ 127 extern void acpi_reserve_bootmem(void); 128 129 #else /* !CONFIG_ACPI */ 130 131 #define acpi_lapic 0 132 #define acpi_ioapic 0 133 static inline void acpi_noirq_set(void) { } 134 static inline void acpi_disable_pci(void) { } 135 static inline void disable_acpi(void) { } 136 137 #endif /* !CONFIG_ACPI */ 138 139 #define ARCH_HAS_POWER_INIT 1 140 141 #endif /*__KERNEL__*/ 142 143 #endif /*_ASM_ACPI_H*/ 144
