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- /* SPDX-License-Identifier: GPL-2.0-or-later */
- /*
- * Copyright (C) 1999 VA Linux Systems
- * Copyright (C) 1999 Walt Drummond <[email protected]>
- * Copyright (C) 2000,2001 J.I. Lee <[email protected]>
- * Copyright (C) 2001,2002 Paul Diefenbaugh <[email protected]>
- */
- #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/numa.h>
- extern int acpi_lapic;
- #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 bool acpi_has_cpu_in_madt(void)
- {
- return !!acpi_lapic;
- }
- #define acpi_processor_cstate_check(x) (x) /* no idle limits on IA64 :) */
- static inline void disable_acpi(void) { }
- int acpi_request_vector (u32 int_type);
- int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
- /* Low-level suspend routine. */
- extern int acpi_suspend_lowlevel(void);
- static inline unsigned long acpi_get_wakeup_address(void)
- {
- return 0;
- }
- /*
- * 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 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;
- }
- #ifdef CONFIG_ACPI_NUMA
- extern cpumask_t early_cpu_possible_map;
- #define for_each_possible_early_cpu(cpu) \
- for_each_cpu((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 = cpumask_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++) {
- cpumask_set_cpu(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;
- }
- }
- }
- extern void acpi_numa_fixup(void);
- #endif /* CONFIG_ACPI_NUMA */
- #endif /*__KERNEL__*/
- #endif /*_ASM_ACPI_H*/
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