2019-06-04 08:11:33 +00:00
|
|
|
/* SPDX-License-Identifier: GPL-2.0-only */
|
2014-05-12 07:46:38 +00:00
|
|
|
/*
|
|
|
|
|
* X86 specific ACPICA environments and implementation
|
|
|
|
|
*
|
|
|
|
|
* Copyright (C) 2014, Intel Corporation
|
|
|
|
|
* Author: Lv Zheng <lv.zheng@intel.com>
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#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 */
|
