linux/include/acpi/platform/aclinuxex.h

/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
/******************************************************************************
 *
 * Name: aclinuxex.h - Extra OS specific defines, etc. for Linux
 *
 * Copyright (C) 2000 - 2023, Intel Corp.
 *
 *****************************************************************************/

#ifndef __ACLINUXEX_H__
#define __ACLINUXEX_H__

#ifdef __KERNEL__

#ifndef ACPI_USE_NATIVE_DIVIDE

#ifndef ACPI_DIV_64_BY_32
#define ACPI_DIV_64_BY_32 …
#endif

#ifndef ACPI_SHIFT_RIGHT_64
#define ACPI_SHIFT_RIGHT_64 …
#endif

#endif

/*
 * Overrides for in-kernel ACPICA
 */
acpi_status ACPI_INIT_FUNCTION acpi_os_initialize(void);

acpi_status acpi_os_terminate(void);

/*
 * The irqs_disabled() check is for resume from RAM.
 * Interrupts are off during resume, just like they are for boot.
 * However, boot has  (system_state != SYSTEM_RUNNING)
 * to quiet __might_sleep() in kmalloc() and resume does not.
 *
 * These specialized allocators have to be macros for their allocations to be
 * accounted separately (to have separate alloc_tag).
 */
#define acpi_os_allocate(_size) …

#define acpi_os_allocate_zeroed(_size) …

#define acpi_os_acquire_object(_cache) …

static inline void acpi_os_free(void *memory)
{ … }

static inline acpi_thread_id acpi_os_get_thread_id(void)
{ … }

/*
 * When lockdep is enabled, the spin_lock_init() macro stringifies it's
 * argument and uses that as a name for the lock in debugging.
 * By executing spin_lock_init() in a macro the key changes from "lock" for
 * all locks to the name of the argument of acpi_os_create_lock(), which
 * prevents lockdep from reporting false positives for ACPICA locks.
 */
#define acpi_os_create_lock(__handle) …


#define acpi_os_create_raw_lock(__handle) …

static inline acpi_cpu_flags acpi_os_acquire_raw_lock(acpi_raw_spinlock lockp)
{ … }

static inline void acpi_os_release_raw_lock(acpi_raw_spinlock lockp,
					    acpi_cpu_flags flags)
{ … }

static inline void acpi_os_delete_raw_lock(acpi_raw_spinlock handle)
{ … }

static inline u8 acpi_os_readable(void *pointer, acpi_size length)
{ … }

static inline acpi_status acpi_os_initialize_debugger(void)
{ … }

static inline void acpi_os_terminate_debugger(void)
{ … }

/*
 * OSL interfaces added by Linux
 */

#endif				/* __KERNEL__ */

#endif				/* __ACLINUXEX_H__ */