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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 *//****************************************************************************** * * Name: aclinuxex.h - Extra OS specific defines, etc. for Linux * * Copyright (C) 2000 - 2026, 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(n_hi, n_lo, d32, q32, r32) \ do { \ u64 (__n) = ((u64) n_hi) << 32 | (n_lo); \ (r32) = do_div ((__n), (d32)); \ (q32) = (u32) (__n); \ } while (0)#endif
#ifndef ACPI_SHIFT_RIGHT_64#define ACPI_SHIFT_RIGHT_64(n_hi, n_lo) \ do { \ (n_lo) >>= 1; \ (n_lo) |= (((n_hi) & 1) << 31); \ (n_hi) >>= 1; \ } while (0)#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) \ kmalloc(_size, irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL)
#define acpi_os_allocate_zeroed(_size) \ kzalloc(_size, irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL)
#define acpi_os_acquire_object(_cache) \ kmem_cache_zalloc(_cache, irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL)
static inline void acpi_os_free(void *memory){ kfree(memory);}
static inline acpi_thread_id acpi_os_get_thread_id(void){ return (acpi_thread_id) (unsigned long)current;}
/* * 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) \ ({ \ spinlock_t *lock = ACPI_ALLOCATE(sizeof(*lock)); \ if (lock) { \ *(__handle) = lock; \ spin_lock_init(*(__handle)); \ } \ lock ? AE_OK : AE_NO_MEMORY; \ })
#define acpi_os_create_raw_lock(__handle) \ ({ \ raw_spinlock_t *lock = ACPI_ALLOCATE(sizeof(*lock)); \ if (lock) { \ *(__handle) = lock; \ raw_spin_lock_init(*(__handle)); \ } \ lock ? AE_OK : AE_NO_MEMORY; \ })
static inline acpi_cpu_flags acpi_os_acquire_raw_lock(acpi_raw_spinlock lockp){ acpi_cpu_flags flags;
raw_spin_lock_irqsave(lockp, flags); return flags;}
static inline void acpi_os_release_raw_lock(acpi_raw_spinlock lockp, acpi_cpu_flags flags){ raw_spin_unlock_irqrestore(lockp, flags);}
static inline void acpi_os_delete_raw_lock(acpi_raw_spinlock handle){ ACPI_FREE(handle);}
static inline u8 acpi_os_readable(void *pointer, acpi_size length){ return TRUE;}
static inline acpi_status acpi_os_initialize_debugger(void){ return AE_OK;}
static inline void acpi_os_terminate_debugger(void){ return;}
/* * OSL interfaces added by Linux */#define acpi_ut_safe_strncpy strscpy_pad
#endif /* __KERNEL__ */
#endif /* __ACLINUXEX_H__ */