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142 lines
5.7 KiB
C
142 lines
5.7 KiB
C
/******************************************************************************
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*
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* Name: acgcc.h - GCC specific defines, etc.
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*
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*****************************************************************************/
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/*
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* Copyright (C) 2000 - 2020, Intel Corp.
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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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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*/
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#ifndef __ACGCC_H__
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#define __ACGCC_H__
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/*
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* Use compiler specific <stdarg.h> is a good practice for even when
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* -nostdinc is specified (i.e., ACPI_USE_STANDARD_HEADERS undefined.
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*/
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#ifndef va_arg
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#ifdef ACPI_USE_BUILTIN_STDARG
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typedef __builtin_va_list va_list;
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#define va_start(v, l) __builtin_va_start(v, l)
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#define va_end(v) __builtin_va_end(v)
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#define va_arg(v, l) __builtin_va_arg(v, l)
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#define va_copy(d, s) __builtin_va_copy(d, s)
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#else
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#include <stdarg.h>
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#endif
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#endif
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#define ACPI_INLINE __inline__
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/* Function name is used for debug output. Non-ANSI, compiler-dependent */
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#define ACPI_GET_FUNCTION_NAME __func__
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/*
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* This macro is used to tag functions as "printf-like" because
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* some compilers (like GCC) can catch printf format string problems.
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*/
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#define ACPI_PRINTF_LIKE(c) __attribute__ ((__format__ (__printf__, c, c+1)))
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/*
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* Some compilers complain about unused variables. Sometimes we don't want to
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* use all the variables (for example, _AcpiModuleName). This allows us
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* to tell the compiler warning in a per-variable manner that a variable
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* is unused.
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*/
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#define ACPI_UNUSED_VAR __attribute__ ((unused))
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/* GCC supports __VA_ARGS__ in macros */
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#define COMPILER_VA_MACRO 1
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/* GCC supports native multiply/shift on 32-bit platforms */
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#define ACPI_USE_NATIVE_MATH64
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#ifdef __REACTOS__
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/* Flush CPU cache - used when going to sleep. Wbinvd or similar. */
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#ifdef ACPI_APPLICATION
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#define ACPI_FLUSH_CPU_CACHE()
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#else
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#define ACPI_FLUSH_CPU_CACHE() asm ("WBINVD")
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#endif
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/*
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* Global Lock acquire/release code
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*
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* Note: Handles case where the FACS pointer is null
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*/
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#define ACPI_ACQUIRE_GLOBAL_LOCK(FacsPtr, Acq) \
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do { \
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asm("orl %2,%2;" \
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"jz 2f;" \
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"leal 16(%2),%2;" \
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"1:" \
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"movl (%2),%%eax;" \
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"movl %%eax,%%edx;" \
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"andl %3,%%edx;" \
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"btsl $0x1,%%edx;" \
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"adcl $0x0,%%edx;" \
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"lock; cmpxchgl %%edx,(%2);" \
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"jnz 1b;" \
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"cmpb $0x3,%%dl;" \
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"sbbl %%eax,%%eax;" \
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"2:" \
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:"=a"(Acq):"a"(0xFF),"c"(FacsPtr),"i"(~1L):"edx");\
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} while(0)
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#define ACPI_RELEASE_GLOBAL_LOCK(FacsPtr, Acq) \
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do { \
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asm("orl %2,%2;" \
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"jz 2f;" \
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"leal 16(%2),%2;" \
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"1:" \
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"movl (%2),%%eax;" \
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"movl %%eax,%%edx;" \
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"andl %3,%%edx;" \
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"lock; cmpxchgl %%edx,(%2);" \
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"jnz 1b;" \
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"cmpb $0x3,%%dl;" /* FIXME: this is pointless */ \
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"andl $0x1,%%eax;" \
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"2:" \
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:"=a"(Acq):"a"(0),"c"(FacsPtr),"i"(~3L):"edx");\
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} while(0)
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#endif /* __REACTOS__ */
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#endif /* __ACGCC_H__ */
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