Файловый менеджер - Редактировать - /usr/src/linux-headers-5.4.0-200/include/acpi/platform/aclinuxex.h
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/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */ /****************************************************************************** * * Name: aclinuxex.h - Extra OS specific defines, etc. for Linux * * Copyright (C) 2000 - 2019, 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. */ static inline void *acpi_os_allocate(acpi_size size) { return kmalloc(size, irqs_disabled()? GFP_ATOMIC : GFP_KERNEL); } static inline void *acpi_os_allocate_zeroed(acpi_size size) { return kzalloc(size, irqs_disabled()? GFP_ATOMIC : GFP_KERNEL); } static inline void acpi_os_free(void *memory) { kfree(memory); } static inline void *acpi_os_acquire_object(acpi_cache_t * cache) { return kmem_cache_zalloc(cache, irqs_disabled()? GFP_ATOMIC : GFP_KERNEL); } 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__ */
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