/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
/******************************************************************************
*
* Name : aclinuxex . h - Extra OS specific defines , etc . for Linux
*
* Copyright ( C ) 2000 - 2025 , 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
*/
#endif /* __KERNEL__ */
#endif /* __ACLINUXEX_H__ */
Messung V0.5 in Prozent C=96 H=87 G=91
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-09-28)
¤
*© Formatika GbR, Deutschland