126 lines
4.2 KiB
C
126 lines
4.2 KiB
C
/*-
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* Copyright (c) 2002 Mitsuru IWASAKI
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/******************************************************************************
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*
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* Name: acpica_machdep.h - arch-specific defines, etc.
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* $Revision$
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*
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*****************************************************************************/
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#ifndef __ACPICA_MACHDEP_H__
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#define __ACPICA_MACHDEP_H__
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#ifdef _KERNEL
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/*
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* Calling conventions:
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*
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* ACPI_SYSTEM_XFACE - Interfaces to host OS (handlers, threads)
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* ACPI_EXTERNAL_XFACE - External ACPI interfaces
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* ACPI_INTERNAL_XFACE - Internal ACPI interfaces
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* ACPI_INTERNAL_VAR_XFACE - Internal variable-parameter list interfaces
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*/
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#define ACPI_SYSTEM_XFACE
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#define ACPI_EXTERNAL_XFACE
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#define ACPI_INTERNAL_XFACE
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#define ACPI_INTERNAL_VAR_XFACE
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/* Asm macros */
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#define ACPI_ASM_MACROS
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#define BREAKPOINT3
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#define ACPI_DISABLE_IRQS() disable_intr()
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#define ACPI_ENABLE_IRQS() enable_intr()
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#define ACPI_FLUSH_CPU_CACHE() wbinvd()
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#define asm __asm
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/*! [Begin] no source code translation
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*
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* A brief explanation as GNU inline assembly is a bit hairy
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* %0 is the output parameter in EAX ("=a")
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* %1 and %2 are the input parameters in ECX ("c")
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* and an immediate value ("i") respectively
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* All actual register references are preceded with "%%" as in "%%edx"
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* Immediate values in the assembly are preceded by "$" as in "$0x1"
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* The final asm parameter are the operation altered non-output registers.
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*/
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#define ACPI_ACQUIRE_GLOBAL_LOCK(GLptr, Acq) \
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do { \
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int dummy; \
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asm("1: movl (%1),%%eax;" \
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"movl %%eax,%%edx;" \
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"andl %2,%%edx;" \
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"btsl $0x1,%%edx;" \
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"adcl $0x0,%%edx;" \
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"lock; cmpxchgl %%edx,(%1);" \
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"jnz 1b;" \
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"cmpb $0x3,%%dl;" \
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"sbbl %%eax,%%eax" \
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:"=a"(Acq),"=c"(dummy):"c"(GLptr),"i"(~1L):"dx"); \
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} while(0)
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#define ACPI_RELEASE_GLOBAL_LOCK(GLptr, Acq) \
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do { \
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int dummy; \
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asm("1: movl (%1),%%eax;" \
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"movl %%eax,%%edx;" \
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"andl %2,%%edx;" \
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"lock; cmpxchgl %%edx,(%1);" \
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"jnz 1b;" \
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"andl $0x1,%%eax" \
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:"=a"(Acq),"=c"(dummy):"c"(GLptr),"i"(~3L):"dx"); \
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} while(0)
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/*
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* Math helper asm macros
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*/
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#define ACPI_DIV_64_BY_32(n_hi, n_lo, d32, q32, r32) \
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asm("divl %2;" \
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:"=a"(q32), "=d"(r32) \
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:"r"(d32), \
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"0"(n_lo), "1"(n_hi))
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#define ACPI_SHIFT_RIGHT_64(n_hi, n_lo) \
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asm("shrl $1,%2;" \
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"rcrl $1,%3;" \
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:"=r"(n_hi), "=r"(n_lo) \
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:"0"(n_hi), "1"(n_lo))
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/*! [End] no source code translation !*/
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#endif /* _KERNEL */
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#define ACPI_MACHINE_WIDTH 32
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#define COMPILER_DEPENDENT_INT64 long long
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#define COMPILER_DEPENDENT_UINT64 unsigned long long
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#define ACPI_USE_NATIVE_DIVIDE
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#endif /* __ACPICA_MACHDEP_H__ */
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