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