[linux-2.6-block.git] / arch / ia64 / include / asm / 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>
#include <asm/numa.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))

#ifdef	CONFIG_ACPI
#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 */
#endif
#define acpi_processor_cstate_check(x) (x) /* no idle limits 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);
#ifdef CONFIG_ACPI_HOTPLUG_CPU
extern int additional_cpus;
#else
#define additional_cpus 0
#endif

#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

static inline bool arch_has_acpi_pdc(void) { return true; }
static inline void arch_acpi_set_pdc_bits(u32 *buf)
{
	buf[2] |= ACPI_PDC_EST_CAPABILITY_SMP;
}

#define acpi_unlazy_tlb(x)

#ifdef CONFIG_ACPI_NUMA
extern cpumask_t early_cpu_possible_map;
#define for_each_possible_early_cpu(cpu)  \
	for_each_cpu_mask((cpu), early_cpu_possible_map)

static inline void per_cpu_scan_finalize(int min_cpus, int reserve_cpus)
{
	int low_cpu, high_cpu;
	int cpu;
	int next_nid = 0;

	low_cpu = cpus_weight(early_cpu_possible_map);

	high_cpu = max(low_cpu, min_cpus);
	high_cpu = min(high_cpu + reserve_cpus, NR_CPUS);

	for (cpu = low_cpu; cpu < high_cpu; cpu++) {
		cpu_set(cpu, early_cpu_possible_map);
		if (node_cpuid[cpu].nid == NUMA_NO_NODE) {
			node_cpuid[cpu].nid = next_nid;
			next_nid++;
			if (next_nid >= num_online_nodes())
				next_nid = 0;
		}
	}
}
#endif /* CONFIG_ACPI_NUMA */

#endif /*__KERNEL__*/

#endif /*_ASM_ACPI_H*/
Commit	Line	Data
1da177e4	1	/*
1da177e4 LT	2	* Copyright (C) 1999 VA Linux Systems
	3	* Copyright (C) 1999 Walt Drummond <drummond@valinux.com>
	4	* Copyright (C) 2000,2001 J.I. Lee <jung-ik.lee@intel.com>
	5	* Copyright (C) 2001,2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
	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
35729449 VP	31	#include <acpi/pdc_intel.h>
35729449 VP	32
1da177e4 LT	33	#include <linux/init.h>
	34	#include <linux/numa.h>
	35	#include <asm/system.h>
2c6e6db4	36	#include <asm/numa.h>
1da177e4 LT	37
	38	#define COMPILER_DEPENDENT_INT64 long
	39	#define COMPILER_DEPENDENT_UINT64 unsigned long
	40
	41	/*
	42	* Calling conventions:
	43	*
	44	* ACPI_SYSTEM_XFACE - Interfaces to host OS (handlers, threads)
	45	* ACPI_EXTERNAL_XFACE - External ACPI interfaces
	46	* ACPI_INTERNAL_XFACE - Internal ACPI interfaces
	47	* ACPI_INTERNAL_VAR_XFACE - Internal variable-parameter list interfaces
	48	*/
	49	#define ACPI_SYSTEM_XFACE
	50	#define ACPI_EXTERNAL_XFACE
	51	#define ACPI_INTERNAL_XFACE
	52	#define ACPI_INTERNAL_VAR_XFACE
	53
	54	/* Asm macros */
	55
	56	#define ACPI_ASM_MACROS
	57	#define BREAKPOINT3
	58	#define ACPI_DISABLE_IRQS() local_irq_disable()
	59	#define ACPI_ENABLE_IRQS() local_irq_enable()
	60	#define ACPI_FLUSH_CPU_CACHE()
	61
	62	static inline int
	63	ia64_acpi_acquire_global_lock (unsigned int *lock)
	64	{
	65	unsigned int old, new, val;
	66	do {
	67	old = *lock;
	68	new = (((old & ~0x3) + 2) + ((old >> 1) & 0x1));
	69	val = ia64_cmpxchg4_acq(lock, new, old);
	70	} while (unlikely (val != old));
	71	return (new < 3) ? -1 : 0;
	72	}
	73
	74	static inline int
	75	ia64_acpi_release_global_lock (unsigned int *lock)
	76	{
	77	unsigned int old, new, val;
	78	do {
	79	old = *lock;
	80	new = old & ~0x3;
	81	val = ia64_cmpxchg4_acq(lock, new, old);
	82	} while (unlikely (val != old));
	83	return old & 0x1;
	84	}
	85
ad71860a AS	86	#define ACPI_ACQUIRE_GLOBAL_LOCK(facs, Acq) \
ad71860a AS	87	((Acq) = ia64_acpi_acquire_global_lock(&facs->global_lock))
1da177e4	88
ad71860a AS	89	#define ACPI_RELEASE_GLOBAL_LOCK(facs, Acq) \
ad71860a AS	90	((Acq) = ia64_acpi_release_global_lock(&facs->global_lock))
1da177e4	91
e56d953d	92	#ifdef CONFIG_ACPI
1da177e4 LT	93	#define acpi_disabled 0 /* ACPI always enabled on IA64 */
	94	#define acpi_noirq 0 /* ACPI always enabled on IA64 */
	95	#define acpi_pci_disabled 0 /* ACPI PCI always enabled on IA64 */
	96	#define acpi_strict 1 /* no ACPI spec workarounds on IA64 */
e56d953d	97	#endif
c1c30634	98	#define acpi_processor_cstate_check(x) (x) /* no idle limits on IA64 :) */
1da177e4 LT	99	static inline void disable_acpi(void) { }
	100
	101	const char *acpi_get_sysname (void);
	102	int acpi_request_vector (u32 int_type);
	103	int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
	104
e8b2fd01 LB	105	/* routines for saving/restoring kernel state */
	106	extern int acpi_save_state_mem(void);
	107	extern void acpi_restore_state_mem(void);
	108	extern unsigned long acpi_wakeup_address;
	109
55e59c51 AR	110	/*
	111	* Record the cpei override flag and current logical cpu. This is
	112	* useful for CPU removal.
	113	*/
	114	extern unsigned int can_cpei_retarget(void);
	115	extern unsigned int is_cpu_cpei_target(unsigned int cpu);
	116	extern void set_cpei_target_cpu(unsigned int cpu);
	117	extern unsigned int get_cpei_target_cpu(void);
a6b14fa6	118	extern void prefill_possible_map(void);
2c6e6db4	119	#ifdef CONFIG_ACPI_HOTPLUG_CPU
a6b14fa6	120	extern int additional_cpus;
2c6e6db4	121	#else
	122	#define additional_cpus 0
	123	#endif
55e59c51	124
1da177e4	125	#ifdef CONFIG_ACPI_NUMA
0d9adec5 JS	126	#if MAX_NUMNODES > 256
0d9adec5 JS	127	#define MAX_PXM_DOMAINS MAX_NUMNODES
3ad5ef8b	128	#else
1da177e4	129	#define MAX_PXM_DOMAINS (256)
3ad5ef8b	130	#endif
1da177e4 LT	131	extern int __devinitdata pxm_to_nid_map[MAX_PXM_DOMAINS];
	132	extern int __initdata nid_to_pxm_map[MAX_NUMNODES];
	133	#endif
	134
1d9cb470	135	static inline bool arch_has_acpi_pdc(void) { return true; }
6c5807d7 AC	136	static inline void arch_acpi_set_pdc_bits(u32 *buf)
	137	{
	138	buf[2] \|= ACPI_PDC_EST_CAPABILITY_SMP;
	139	}
1d9cb470	140
bde6f5f5 VP	141	#define acpi_unlazy_tlb(x)
bde6f5f5 VP	142
2c6e6db4	143	#ifdef CONFIG_ACPI_NUMA
	144	extern cpumask_t early_cpu_possible_map;
	145	#define for_each_possible_early_cpu(cpu) \
	146	for_each_cpu_mask((cpu), early_cpu_possible_map)
	147
	148	static inline void per_cpu_scan_finalize(int min_cpus, int reserve_cpus)
	149	{
	150	int low_cpu, high_cpu;
	151	int cpu;
	152	int next_nid = 0;
	153
	154	low_cpu = cpus_weight(early_cpu_possible_map);
	155
	156	high_cpu = max(low_cpu, min_cpus);
	157	high_cpu = min(high_cpu + reserve_cpus, NR_CPUS);
	158
	159	for (cpu = low_cpu; cpu < high_cpu; cpu++) {
	160	cpu_set(cpu, early_cpu_possible_map);
	161	if (node_cpuid[cpu].nid == NUMA_NO_NODE) {
	162	node_cpuid[cpu].nid = next_nid;
	163	next_nid++;
	164	if (next_nid >= num_online_nodes())
	165	next_nid = 0;
	166	}
	167	}
	168	}
	169	#endif /* CONFIG_ACPI_NUMA */
	170
1da177e4 LT	171	#endif /__KERNEL__/
	172
	173	#endif /_ASM_ACPI_H/