/* * asm-ia64/acpi.h * * Copyright (C) 1999 VA Linux Systems * Copyright (C) 1999 Walt Drummond <drummond@valinux.com> * Copyright (C) 2000,2001 J.I. Lee <jung-ik.lee@intel.com> * Copyright (C) 2001,2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com> * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ #ifndef _ASM_ACPI_H #define _ASM_ACPI_H #ifdef __KERNEL__ #include <acpi/pdc_intel.h> #include <linux/init.h> #include <linux/numa.h> #include <asm/system.h> #define COMPILER_DEPENDENT_INT64 long #define COMPILER_DEPENDENT_UINT64 unsigned long /* * Calling conventions: * * ACPI_SYSTEM_XFACE - Interfaces to host OS (handlers, threads) * ACPI_EXTERNAL_XFACE - External ACPI interfaces * ACPI_INTERNAL_XFACE - Internal ACPI interfaces * ACPI_INTERNAL_VAR_XFACE - Internal variable-parameter list interfaces */ #define ACPI_SYSTEM_XFACE #define ACPI_EXTERNAL_XFACE #define ACPI_INTERNAL_XFACE #define ACPI_INTERNAL_VAR_XFACE /* Asm macros */ #define ACPI_ASM_MACROS #define BREAKPOINT3 #define ACPI_DISABLE_IRQS() local_irq_disable() #define ACPI_ENABLE_IRQS() local_irq_enable() #define ACPI_FLUSH_CPU_CACHE() static inline int ia64_acpi_acquire_global_lock (unsigned int *lock) { unsigned int old, new, val; do { old = *lock; new = (((old & ~0x3) + 2) + ((old >> 1) & 0x1)); val = ia64_cmpxchg4_acq(lock, new, old); } while (unlikely (val != old)); return (new < 3) ? -1 : 0; } static inline int ia64_acpi_release_global_lock (unsigned int *lock) { unsigned int old, new, val; do { old = *lock; new = old & ~0x3; val = ia64_cmpxchg4_acq(lock, new, old); } while (unlikely (val != old)); return old & 0x1; } #define ACPI_ACQUIRE_GLOBAL_LOCK(facs, Acq) \ ((Acq) = ia64_acpi_acquire_global_lock(&facs->global_lock)) #define ACPI_RELEASE_GLOBAL_LOCK(facs, Acq) \ ((Acq) = ia64_acpi_release_global_lock(&facs->global_lock)) #define acpi_disabled 0 /* ACPI always enabled on IA64 */ #define acpi_noirq 0 /* ACPI always enabled on IA64 */ #define acpi_pci_disabled 0 /* ACPI PCI always enabled on IA64 */ #define acpi_strict 1 /* no ACPI spec workarounds on IA64 */ static inline void disable_acpi(void) { } const char *acpi_get_sysname (void); int acpi_request_vector (u32 int_type); int acpi_gsi_to_irq (u32 gsi, unsigned int *irq); /* routines for saving/restoring kernel state */ extern int acpi_save_state_mem(void); extern void acpi_restore_state_mem(void); extern unsigned long acpi_wakeup_address; /* * Record the cpei override flag and current logical cpu. This is * useful for CPU removal. */ extern unsigned int can_cpei_retarget(void); extern unsigned int is_cpu_cpei_target(unsigned int cpu); extern void set_cpei_target_cpu(unsigned int cpu); extern unsigned int get_cpei_target_cpu(void); extern void prefill_possible_map(void); extern int additional_cpus; #ifdef CONFIG_ACPI_NUMA #if MAX_NUMNODES > 256 #define MAX_PXM_DOMAINS MAX_NUMNODES #else #define MAX_PXM_DOMAINS (256) #endif extern int __devinitdata pxm_to_nid_map[MAX_PXM_DOMAINS]; extern int __initdata nid_to_pxm_map[MAX_NUMNODES]; #endif #endif /*__KERNEL__*/ #endif /*_ASM_ACPI_H*/