[deliverable/linux.git] / include / asm-ia64 / acpi.h

/*
 *  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)*/
#define MAX_PXM_DOMAINS (256)
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*/
Commit	Line	Data
1da177e4 LT	1	/*
	2	* asm-ia64/acpi.h
	3	*
	4	* Copyright (C) 1999 VA Linux Systems
	5	* Copyright (C) 1999 Walt Drummond <drummond@valinux.com>
	6	* Copyright (C) 2000,2001 J.I. Lee <jung-ik.lee@intel.com>
	7	* Copyright (C) 2001,2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
	8	*
	9	* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	10	*
	11	* This program is free software; you can redistribute it and/or modify
	12	* it under the terms of the GNU General Public License as published by
	13	* the Free Software Foundation; either version 2 of the License, or
	14	* (at your option) any later version.
	15	*
	16	* This program is distributed in the hope that it will be useful,
	17	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	18	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	19	* GNU General Public License for more details.
	20	*
	21	* You should have received a copy of the GNU General Public License
	22	* along with this program; if not, write to the Free Software
	23	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	24	*
	25	* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	26	*/
	27
	28	#ifndef _ASM_ACPI_H
	29	#define _ASM_ACPI_H
	30
	31	#ifdef __KERNEL__
	32
	33	#include <linux/init.h>
	34	#include <linux/numa.h>
	35	#include <asm/system.h>
	36
	37	#define COMPILER_DEPENDENT_INT64 long
	38	#define COMPILER_DEPENDENT_UINT64 unsigned long
	39
	40	/*
	41	* Calling conventions:
	42	*
	43	* ACPI_SYSTEM_XFACE - Interfaces to host OS (handlers, threads)
	44	* ACPI_EXTERNAL_XFACE - External ACPI interfaces
	45	* ACPI_INTERNAL_XFACE - Internal ACPI interfaces
	46	* ACPI_INTERNAL_VAR_XFACE - Internal variable-parameter list interfaces
	47	*/
	48	#define ACPI_SYSTEM_XFACE
	49	#define ACPI_EXTERNAL_XFACE
	50	#define ACPI_INTERNAL_XFACE
	51	#define ACPI_INTERNAL_VAR_XFACE
	52
	53	/* Asm macros */
	54
	55	#define ACPI_ASM_MACROS
	56	#define BREAKPOINT3
	57	#define ACPI_DISABLE_IRQS() local_irq_disable()
	58	#define ACPI_ENABLE_IRQS() local_irq_enable()
	59	#define ACPI_FLUSH_CPU_CACHE()
	60
	61	static inline int
	62	ia64_acpi_acquire_global_lock (unsigned int *lock)
	63	{
	64	unsigned int old, new, val;
65	do {
66	old = *lock;
67	new = (((old & ~0x3) + 2) + ((old >> 1) & 0x1));
68	val = ia64_cmpxchg4_acq(lock, new, old);
69	} while (unlikely (val != old));
70	return (new < 3) ? -1 : 0;
71	}
72
73	static inline int
74	ia64_acpi_release_global_lock (unsigned int *lock)
75	{
76	unsigned int old, new, val;
77	do {
78	old = *lock;
79	new = old & ~0x3;
80	val = ia64_cmpxchg4_acq(lock, new, old);
81	} while (unlikely (val != old));
82	return old & 0x1;
83	}
84
85	#define ACPI_ACQUIRE_GLOBAL_LOCK(GLptr, Acq) \
86	((Acq) = ia64_acpi_acquire_global_lock((unsigned int *) GLptr))
87
88	#define ACPI_RELEASE_GLOBAL_LOCK(GLptr, Acq) \
89	((Acq) = ia64_acpi_release_global_lock((unsigned int *) GLptr))
90
91	#define acpi_disabled 0 /* ACPI always enabled on IA64 */
92	#define acpi_noirq 0 /* ACPI always enabled on IA64 */
93	#define acpi_pci_disabled 0 /* ACPI PCI always enabled on IA64 */
94	#define acpi_strict 1 /* no ACPI spec workarounds on IA64 */
95	static inline void disable_acpi(void) { }
96
97	const char *acpi_get_sysname (void);
98	int acpi_request_vector (u32 int_type);
99	int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
100
55e59c51 AR	101	/*
	102	* Record the cpei override flag and current logical cpu. This is
	103	* useful for CPU removal.
	104	*/
	105	extern unsigned int can_cpei_retarget(void);
	106	extern unsigned int is_cpu_cpei_target(unsigned int cpu);
	107	extern void set_cpei_target_cpu(unsigned int cpu);
	108	extern unsigned int get_cpei_target_cpu(void);
a6b14fa6 AR	109	extern void prefill_possible_map(void);
a6b14fa6 AR	110	extern int additional_cpus;
55e59c51	111
1da177e4 LT	112	#ifdef CONFIG_ACPI_NUMA
	113	/* Proximity bitmap length; _PXM is at most 255 (8 bit)*/
	114	#define MAX_PXM_DOMAINS (256)
	115	extern int __devinitdata pxm_to_nid_map[MAX_PXM_DOMAINS];
	116	extern int __initdata nid_to_pxm_map[MAX_NUMNODES];
	117	#endif
	118
	119	extern u16 ia64_acpiid_to_sapicid[];
	120
4db8699b VP	121	/*
	122	* Refer Intel ACPI _PDC support document for bit definitions
	123	*/
	124	#define ACPI_PDC_EST_CAPABILITY_SMP 0x8
	125
1da177e4 LT	126	#endif /__KERNEL__/
	127
	128	#endif /_ASM_ACPI_H/