linux/arch/x86/include/asm/acpi.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef _ASM_X86_ACPI_H
#define _ASM_X86_ACPI_H

/*
 *  Copyright (C) 2001 Paul Diefenbaugh <[email protected]>
 *  Copyright (C) 2001 Patrick Mochel <[email protected]>
 */
#include <acpi/proc_cap_intel.h>

#include <asm/numa.h>
#include <asm/fixmap.h>
#include <asm/processor.h>
#include <asm/mmu.h>
#include <asm/mpspec.h>
#include <asm/x86_init.h>
#include <asm/cpufeature.h>
#include <asm/irq_vectors.h>
#include <asm/xen/hypervisor.h>

#include <xen/xen.h>

#ifdef CONFIG_ACPI_APEI
# include <asm/pgtable_types.h>
#endif

#ifdef CONFIG_ACPI
extern int acpi_lapic;
extern int acpi_ioapic;
extern int acpi_noirq;
extern int acpi_strict;
extern int acpi_disabled;
extern int acpi_pci_disabled;
extern int acpi_skip_timer_override;
extern int acpi_use_timer_override;
extern int acpi_fix_pin2_polarity;
extern int acpi_disable_cmcff;
extern bool acpi_int_src_ovr[NR_IRQS_LEGACY];

extern u8 acpi_sci_flags;
extern u32 acpi_sci_override_gsi;
void acpi_pic_sci_set_trigger(unsigned int, u16);

struct device;

extern int (*__acpi_register_gsi)(struct device *dev, u32 gsi,
				  int trigger, int polarity);
extern void (*__acpi_unregister_gsi)(u32 gsi);

static inline void disable_acpi(void)
{ … }

extern int acpi_gsi_to_irq(u32 gsi, unsigned int *irq);

extern int acpi_blacklisted(void);

static inline void acpi_noirq_set(void) { … }
static inline void acpi_disable_pci(void)
{ … }

/* Low-level suspend routine. */
extern int (*acpi_suspend_lowlevel)(void);

/* Physical address to resume after wakeup */
unsigned long acpi_get_wakeup_address(void);

static inline bool acpi_skip_set_wakeup_address(void)
{ … }

#define acpi_skip_set_wakeup_address …

acpi_subtable_headers;

int __init acpi_parse_mp_wake(union acpi_subtable_headers *header,
			      const unsigned long end);

void asm_acpi_mp_play_dead(u64 reset_vector, u64 pgd_pa);

/*
 * Check if the CPU can handle C2 and deeper
 */
static inline unsigned int acpi_processor_cstate_check(unsigned int max_cstate)
{ … }

static inline bool arch_has_acpi_pdc(void)
{ … }

static inline void arch_acpi_set_proc_cap_bits(u32 *cap)
{ … }

static inline bool acpi_has_cpu_in_madt(void)
{ … }

#define ACPI_HAVE_ARCH_SET_ROOT_POINTER
static inline void acpi_arch_set_root_pointer(u64 addr)
{ … }

#define ACPI_HAVE_ARCH_GET_ROOT_POINTER
static inline u64 acpi_arch_get_root_pointer(void)
{ … }

void acpi_generic_reduced_hw_init(void);

void x86_default_set_root_pointer(u64 addr);
u64 x86_default_get_root_pointer(void);

#ifdef CONFIG_XEN_PV
/* A Xen PV domain needs a special acpi_os_ioremap() handling. */
extern void __iomem * (*acpi_os_ioremap)(acpi_physical_address phys,
					 acpi_size size);
void __iomem *x86_acpi_os_ioremap(acpi_physical_address phys, acpi_size size);
#define acpi_os_ioremap …
#endif

#else /* !CONFIG_ACPI */

#define acpi_lapic …
#define acpi_ioapic …
#define acpi_disable_cmcff …
static inline void acpi_noirq_set(void) { }
static inline void acpi_disable_pci(void) { }
static inline void disable_acpi(void) { }

static inline void acpi_generic_reduced_hw_init(void) { }

static inline void x86_default_set_root_pointer(u64 addr) { }

static inline u64 x86_default_get_root_pointer(void)
{
	return 0;
}

#endif /* !CONFIG_ACPI */

#define ARCH_HAS_POWER_INIT …

#ifdef CONFIG_ACPI_NUMA
extern int x86_acpi_numa_init(void);
#endif /* CONFIG_ACPI_NUMA */

struct cper_ia_proc_ctx;

#ifdef CONFIG_ACPI_APEI
static inline pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr)
{ … }

int arch_apei_report_x86_error(struct cper_ia_proc_ctx *ctx_info,
			       u64 lapic_id);
#else
static inline int arch_apei_report_x86_error(struct cper_ia_proc_ctx *ctx_info,
					     u64 lapic_id)
{
	return -EINVAL;
}
#endif

#define ACPI_TABLE_UPGRADE_MAX_PHYS …

#endif /* _ASM_X86_ACPI_H */