Release 4.14 arch/x86/include/asm/acenv.h

/*
 * X86 specific ACPICA environments and implementation
 *
 * Copyright (C) 2014, Intel Corporation
 *   Author: Lv Zheng <lv.zheng@intel.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#ifndef _ASM_X86_ACENV_H

#define _ASM_X86_ACENV_H

#include <asm/special_insns.h>

/* Asm macros */


#define ACPI_FLUSH_CPU_CACHE()	wbinvd()

int __acpi_acquire_global_lock(unsigned int *lock);
int __acpi_release_global_lock(unsigned int *lock);


#define ACPI_ACQUIRE_GLOBAL_LOCK(facs, Acq) \
	((Acq) = __acpi_acquire_global_lock(&facs->global_lock))


#define ACPI_RELEASE_GLOBAL_LOCK(facs, Acq) \
	((Acq) = __acpi_release_global_lock(&facs->global_lock))

/*
 * Math helper asm macros
 */

#define ACPI_DIV_64_BY_32(n_hi, n_lo, d32, q32, r32) \
	asm("divl %2;"                               \
            : "=a"(q32), "=d"(r32)                   \
            : "r"(d32),                              \
             "0"(n_lo), "1"(n_hi))


#define ACPI_SHIFT_RIGHT_64(n_hi, n_lo) \
	asm("shrl   $1,%2       ;"      \
            "rcrl   $1,%3;"             \
            : "=r"(n_hi), "=r"(n_lo)    \
            : "0"(n_hi), "1"(n_lo))

#endif /* _ASM_X86_ACENV_H */
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Directory: arch/x86/include/asm

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