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

   1/* SPDX-License-Identifier: GPL-2.0-or-later */
   2/*
   3 *  Copyright (C) 1999 VA Linux Systems
   4 *  Copyright (C) 1999 Walt Drummond <drummond@valinux.com>
   5 *  Copyright (C) 2000,2001 J.I. Lee <jung-ik.lee@intel.com>
   6 *  Copyright (C) 2001,2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
   7 */
   8
   9#ifndef _ASM_ACPI_H
  10#define _ASM_ACPI_H
  11
  12#ifdef __KERNEL__
  13
  14#include <acpi/pdc_intel.h>
  15
  16#include <linux/init.h>
  17#include <linux/numa.h>
  18#include <asm/numa.h>
  19
  20
  21extern int acpi_lapic;
  22#define acpi_disabled 0 /* ACPI always enabled on IA64 */
  23#define acpi_noirq 0    /* ACPI always enabled on IA64 */
  24#define acpi_pci_disabled 0 /* ACPI PCI always enabled on IA64 */
  25#define acpi_strict 1   /* no ACPI spec workarounds on IA64 */
  26
  27static inline bool acpi_has_cpu_in_madt(void)
  28{
  29        return !!acpi_lapic;
  30}
  31
  32#define acpi_processor_cstate_check(x) (x) /* no idle limits on IA64 :) */
  33static inline void disable_acpi(void) { }
  34
  35int acpi_request_vector (u32 int_type);
  36int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
  37
  38/* Low-level suspend routine. */
  39extern int acpi_suspend_lowlevel(void);
  40
  41static inline unsigned long acpi_get_wakeup_address(void)
  42{
  43        return 0;
  44}
  45
  46/*
  47 * Record the cpei override flag and current logical cpu. This is
  48 * useful for CPU removal.
  49 */
  50extern unsigned int can_cpei_retarget(void);
  51extern unsigned int is_cpu_cpei_target(unsigned int cpu);
  52extern void set_cpei_target_cpu(unsigned int cpu);
  53extern unsigned int get_cpei_target_cpu(void);
  54extern void prefill_possible_map(void);
  55#ifdef CONFIG_ACPI_HOTPLUG_CPU
  56extern int additional_cpus;
  57#else
  58#define additional_cpus 0
  59#endif
  60
  61#ifdef CONFIG_ACPI_NUMA
  62#if MAX_NUMNODES > 256
  63#define MAX_PXM_DOMAINS MAX_NUMNODES
  64#else
  65#define MAX_PXM_DOMAINS (256)
  66#endif
  67extern int pxm_to_nid_map[MAX_PXM_DOMAINS];
  68extern int __initdata nid_to_pxm_map[MAX_NUMNODES];
  69#endif
  70
  71static inline bool arch_has_acpi_pdc(void) { return true; }
  72static inline void arch_acpi_set_pdc_bits(u32 *buf)
  73{
  74        buf[2] |= ACPI_PDC_EST_CAPABILITY_SMP;
  75}
  76
  77#ifdef CONFIG_ACPI_NUMA
  78extern cpumask_t early_cpu_possible_map;
  79#define for_each_possible_early_cpu(cpu)  \
  80        for_each_cpu((cpu), &early_cpu_possible_map)
  81
  82static inline void per_cpu_scan_finalize(int min_cpus, int reserve_cpus)
  83{
  84        int low_cpu, high_cpu;
  85        int cpu;
  86        int next_nid = 0;
  87
  88        low_cpu = cpumask_weight(&early_cpu_possible_map);
  89
  90        high_cpu = max(low_cpu, min_cpus);
  91        high_cpu = min(high_cpu + reserve_cpus, NR_CPUS);
  92
  93        for (cpu = low_cpu; cpu < high_cpu; cpu++) {
  94                cpumask_set_cpu(cpu, &early_cpu_possible_map);
  95                if (node_cpuid[cpu].nid == NUMA_NO_NODE) {
  96                        node_cpuid[cpu].nid = next_nid;
  97                        next_nid++;
  98                        if (next_nid >= num_online_nodes())
  99                                next_nid = 0;
 100                }
 101        }
 102}
 103
 104extern void acpi_numa_fixup(void);
 105
 106#endif /* CONFIG_ACPI_NUMA */
 107
 108#endif /*__KERNEL__*/
 109
 110#endif /*_ASM_ACPI_H*/
 111