1/* 2 * asm-i386/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#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 59int __acpi_acquire_global_lock(unsigned int *lock); 60int __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 84extern void early_quirks(void); 85 86#ifdef CONFIG_ACPI 87extern int acpi_lapic; 88extern int acpi_ioapic; 89extern int acpi_noirq; 90extern int acpi_strict; 91extern int acpi_disabled; 92extern int acpi_ht; 93extern int acpi_pci_disabled; 94static 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 105extern int acpi_gsi_to_irq(u32 gsi, unsigned int *irq); 106 107#ifdef CONFIG_X86_IO_APIC 108extern int acpi_skip_timer_override; 109extern int acpi_use_timer_override; 110#endif 111 112static inline void acpi_noirq_set(void) { acpi_noirq = 1; } 113static inline void acpi_disable_pci(void) 114{ 115 acpi_pci_disabled = 1; 116 acpi_noirq_set(); 117} 118extern int acpi_irq_balance_set(char *str); 119 120/* routines for saving/restoring kernel state */ 121extern int acpi_save_state_mem(void); 122extern void acpi_restore_state_mem(void); 123 124extern unsigned long acpi_wakeup_address; 125 126/* early initialization routine */ 127extern void acpi_reserve_bootmem(void); 128 129#else /* !CONFIG_ACPI */ 130 131#define acpi_lapic 0 132#define acpi_ioapic 0 133static inline void acpi_noirq_set(void) { } 134static inline void acpi_disable_pci(void) { } 135static 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