Rev 6588 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 6588 | serge | 1 | /* |
| 2 | * X86 specific ACPICA environments and implementation |
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| 3 | * |
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| 4 | * Copyright (C) 2014, Intel Corporation |
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| 5 | * Author: Lv Zheng |
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| 6 | * |
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| 7 | * This program is free software; you can redistribute it and/or modify |
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| 8 | * it under the terms of the GNU General Public License version 2 as |
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| 9 | * published by the Free Software Foundation. |
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| 10 | */ |
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| 11 | |||
| 12 | #ifndef _ASM_X86_ACENV_H |
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| 13 | #define _ASM_X86_ACENV_H |
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| 14 | |||
| 15 | #include |
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| 16 | |||
| 17 | /* Asm macros */ |
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| 18 | |||
| 19 | #define ACPI_FLUSH_CPU_CACHE() wbinvd() |
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| 20 | |||
| 21 | int __acpi_acquire_global_lock(unsigned int *lock); |
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| 22 | int __acpi_release_global_lock(unsigned int *lock); |
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| 23 | |||
| 24 | #define ACPI_ACQUIRE_GLOBAL_LOCK(facs, Acq) \ |
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| 25 | ((Acq) = __acpi_acquire_global_lock(&facs->global_lock)) |
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| 26 | |||
| 27 | #define ACPI_RELEASE_GLOBAL_LOCK(facs, Acq) \ |
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| 28 | ((Acq) = __acpi_release_global_lock(&facs->global_lock)) |
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| 29 | |||
| 30 | /* |
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| 31 | * Math helper asm macros |
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| 32 | */ |
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| 33 | #define ACPI_DIV_64_BY_32(n_hi, n_lo, d32, q32, r32) \ |
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| 34 | asm("divl %2;" \ |
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| 35 | : "=a"(q32), "=d"(r32) \ |
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| 36 | : "r"(d32), \ |
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| 37 | "0"(n_lo), "1"(n_hi)) |
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| 38 | |||
| 39 | #define ACPI_SHIFT_RIGHT_64(n_hi, n_lo) \ |
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| 40 | asm("shrl $1,%2 ;" \ |
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| 41 | "rcrl $1,%3;" \ |
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| 42 | : "=r"(n_hi), "=r"(n_lo) \ |
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| 43 | : "0"(n_hi), "1"(n_lo)) |
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| 44 | |||
| 45 | #endif /* _ASM_X86_ACENV_H */ |