LXR linux/arch/ia64/include/asm/acpi.h

   1/*
   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
  31#include <acpi/pdc_intel.h>
  32
  33#include <linux/init.h>
  34#include <linux/numa.h>
  35#include <asm/numa.h>
  36
  37#ifdef  CONFIG_ACPI
  38extern int acpi_lapic;
  39#define acpi_disabled 0 /* ACPI always enabled on IA64 */
  40#define acpi_noirq 0    /* ACPI always enabled on IA64 */
  41#define acpi_pci_disabled 0 /* ACPI PCI always enabled on IA64 */
  42#define acpi_strict 1   /* no ACPI spec workarounds on IA64 */
  43
  44static inline bool acpi_has_cpu_in_madt(void)
  45{
  46        return !!acpi_lapic;
  47}
  48#endif
  49#define acpi_processor_cstate_check(x) (x) /* no idle limits on IA64 :) */
  50static inline void disable_acpi(void) { }
  51
  52#ifdef CONFIG_IA64_GENERIC
  53const char *acpi_get_sysname (void);
  54#else
  55static inline const char *acpi_get_sysname (void)
  56{
  57# if defined (CONFIG_IA64_HP_SIM)
  58        return "hpsim";
  59# elif defined (CONFIG_IA64_HP_ZX1)
  60        return "hpzx1";
  61# elif defined (CONFIG_IA64_HP_ZX1_SWIOTLB)
  62        return "hpzx1_swiotlb";
  63# elif defined (CONFIG_IA64_SGI_SN2)
  64        return "sn2";
  65# elif defined (CONFIG_IA64_SGI_UV)
  66        return "uv";
  67# elif defined (CONFIG_IA64_DIG)
  68        return "dig";
  69# elif defined(CONFIG_IA64_DIG_VTD)
  70        return "dig_vtd";
  71# else
  72#       error Unknown platform.  Fix acpi.c.
  73# endif
  74}
  75#endif
  76int acpi_request_vector (u32 int_type);
  77int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
  78
  79/* Low-level suspend routine. */
  80extern int acpi_suspend_lowlevel(void);
  81
  82extern unsigned long acpi_wakeup_address;
  83
  84/*
  85 * Record the cpei override flag and current logical cpu. This is
  86 * useful for CPU removal.
  87 */
  88extern unsigned int can_cpei_retarget(void);
  89extern unsigned int is_cpu_cpei_target(unsigned int cpu);
  90extern void set_cpei_target_cpu(unsigned int cpu);
  91extern unsigned int get_cpei_target_cpu(void);
  92extern void prefill_possible_map(void);
  93#ifdef CONFIG_ACPI_HOTPLUG_CPU
  94extern int additional_cpus;
  95#else
  96#define additional_cpus 0
  97#endif
  98
  99#ifdef CONFIG_ACPI_NUMA
 100#if MAX_NUMNODES > 256
 101#define MAX_PXM_DOMAINS MAX_NUMNODES
 102#else
 103#define MAX_PXM_DOMAINS (256)
 104#endif
 105extern int pxm_to_nid_map[MAX_PXM_DOMAINS];
 106extern int __initdata nid_to_pxm_map[MAX_NUMNODES];
 107#endif
 108
 109static inline bool arch_has_acpi_pdc(void) { return true; }
 110static inline void arch_acpi_set_pdc_bits(u32 *buf)
 111{
 112        buf[2] |= ACPI_PDC_EST_CAPABILITY_SMP;
 113}
 114
 115#define acpi_unlazy_tlb(x)
 116
 117#ifdef CONFIG_ACPI_NUMA
 118extern cpumask_t early_cpu_possible_map;
 119#define for_each_possible_early_cpu(cpu)  \
 120        for_each_cpu((cpu), &early_cpu_possible_map)
 121
 122static inline void per_cpu_scan_finalize(int min_cpus, int reserve_cpus)
 123{
 124        int low_cpu, high_cpu;
 125        int cpu;
 126        int next_nid = 0;
 127
 128        low_cpu = cpumask_weight(&early_cpu_possible_map);
 129
 130        high_cpu = max(low_cpu, min_cpus);
 131        high_cpu = min(high_cpu + reserve_cpus, NR_CPUS);
 132
 133        for (cpu = low_cpu; cpu < high_cpu; cpu++) {
 134                cpumask_set_cpu(cpu, &early_cpu_possible_map);
 135                if (node_cpuid[cpu].nid == NUMA_NO_NODE) {
 136                        node_cpuid[cpu].nid = next_nid;
 137                        next_nid++;
 138                        if (next_nid >= num_online_nodes())
 139                                next_nid = 0;
 140                }
 141        }
 142}
 143#endif /* CONFIG_ACPI_NUMA */
 144
 145#endif /*__KERNEL__*/
 146
 147#endif /*_ASM_ACPI_H*/
 148