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/*
* 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 <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(GLptr, Acq) \
((Acq) = ia64_acpi_acquire_global_lock((unsigned int *) GLptr))
#define ACPI_RELEASE_GLOBAL_LOCK(GLptr, Acq) \
((Acq) = ia64_acpi_release_global_lock((unsigned int *) GLptr))
#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);
/*
* 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
/* Proximity bitmap length; _PXM is at most 255 (8 bit)*/
#ifdef CONFIG_IA64_NR_NODES
#define MAX_PXM_DOMAINS CONFIG_IA64_NR_NODES
#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
extern u16 ia64_acpiid_to_sapicid[];
/*
* Refer Intel ACPI _PDC support document for bit definitions
*/
#define ACPI_PDC_EST_CAPABILITY_SMP 0x8
#endif /*__KERNEL__*/
#endif /*_ASM_ACPI_H*/
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