projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 07d83914 LZ |
1 | /* |
| 2 | * X86 specific ACPICA environments and implementation | |
| 3 | * | |
| 4 | * Copyright (C) 2014, Intel Corporation | |
| 5 | * Author: Lv Zheng <lv.zheng@intel.com> | |
| 6 | * | |
| 7 | * This program is free software; you can redistribute it and/or modify | |
| 8 | * it under the terms of the GNU General Public License version 2 as | |
| 9 | * published by the Free Software Foundation. | |
| 10 | */ | |
| 11 | ||
| 12 | #ifndef _ASM_X86_ACENV_H | |
| 13 | #define _ASM_X86_ACENV_H | |
| 14 | ||
| 15 | #include <asm/special_insns.h> | |
| 16 | ||
| 07d83914 LZ |
17 | /* Asm macros */ |
| 18 | ||
| 19 | #define ACPI_FLUSH_CPU_CACHE() wbinvd() | |
| 20 | ||
| 07d83914 LZ |
21 | int __acpi_acquire_global_lock(unsigned int *lock); |
| 22 | int __acpi_release_global_lock(unsigned int *lock); | |
| 23 | ||
| 24 | #define ACPI_ACQUIRE_GLOBAL_LOCK(facs, Acq) \ | |
| 25 | ((Acq) = __acpi_acquire_global_lock(&facs->global_lock)) | |
| 26 | ||
| 27 | #define ACPI_RELEASE_GLOBAL_LOCK(facs, Acq) \ | |
| 28 | ((Acq) = __acpi_release_global_lock(&facs->global_lock)) | |
| 29 | ||
| 30 | /* | |
| 31 | * Math helper asm macros | |
| 32 | */ | |
| 33 | #define ACPI_DIV_64_BY_32(n_hi, n_lo, d32, q32, r32) \ | |
| 34 | asm("divl %2;" \ | |
| 35 | : "=a"(q32), "=d"(r32) \ | |
| 36 | : "r"(d32), \ | |
| 37 | "0"(n_lo), "1"(n_hi)) | |
| 38 | ||
| 39 | #define ACPI_SHIFT_RIGHT_64(n_hi, n_lo) \ | |
| 40 | asm("shrl $1,%2 ;" \ | |
| 41 | "rcrl $1,%3;" \ | |
| 42 | : "=r"(n_hi), "=r"(n_lo) \ | |
| 43 | : "0"(n_hi), "1"(n_lo)) | |
| 44 | ||
| 07d83914 | 45 | #endif /* _ASM_X86_ACENV_H */ |