Coverage Report

Created: 2017-10-25 09:10

/root/src/xen/xen/include/acpi/acmacros.h
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/******************************************************************************
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 *
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 * Name: acmacros.h - C macros for the entire subsystem.
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 *
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 *****************************************************************************/
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/*
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 * Copyright (C) 2000 - 2007, R. Byron Moore
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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 __ACMACROS_H__
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#define __ACMACROS_H__
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/*
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 * Data manipulation macros
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 */
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#define ACPI_LOWORD(l)                  ((u16)(u32)(l))
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#define ACPI_HIWORD(l)                  ((u16)((((u32)(l)) >> 16) & 0xFFFF))
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#define ACPI_LOBYTE(l)                  ((u8)(u16)(l))
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#define ACPI_HIBYTE(l)                  ((u8)((((u16)(l)) >> 8) & 0xFF))
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#define ACPI_SET_BIT(target,bit)        ((target) |= (bit))
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#define ACPI_CLEAR_BIT(target,bit)      ((target) &= ~(bit))
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#define ACPI_MIN(a,b)                   (((a)<(b))?(a):(b))
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#define ACPI_MAX(a,b)                   (((a)>(b))?(a):(b))
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/* Size calculation */
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#define ACPI_ARRAY_LENGTH(x)            (sizeof(x) / sizeof((x)[0]))
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#ifdef ACPI_NO_INTEGER64_SUPPORT
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/*
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 * acpi_integer is 32-bits, no 64-bit support on this platform
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 */
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#define ACPI_LODWORD(l)                 ((u32)(l))
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#define ACPI_HIDWORD(l)                 ((u32)(0))
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#else
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/*
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 * Full 64-bit address/integer on both 32-bit and 64-bit platforms
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 */
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#define ACPI_LODWORD(l)                 ((u32)(u64)(l))
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#define ACPI_HIDWORD(l)                 ((u32)(((*(struct uint64_struct *)(void *)(&l))).hi))
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#endif
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/*
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 * printf() format helpers
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 */
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/* Split 64-bit integer into two 32-bit values. Use with %8.8_x%8.8_x */
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#define ACPI_FORMAT_UINT64(i)           ACPI_HIDWORD(i),ACPI_LODWORD(i)
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/*
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 * Extract data using a pointer.  Any more than a byte and we
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 * get into potential aligment issues -- see the STORE macros below.
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 * Use with care.
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 */
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#define ACPI_GET8(ptr)                  *ACPI_CAST_PTR (u8, ptr)
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#define ACPI_GET16(ptr)                 *ACPI_CAST_PTR (u16, ptr)
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#define ACPI_GET32(ptr)                 *ACPI_CAST_PTR (u32, ptr)
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#define ACPI_GET64(ptr)                 *ACPI_CAST_PTR (u64, ptr)
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#define ACPI_SET8(ptr)                  *ACPI_CAST_PTR (u8, ptr)
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#define ACPI_SET16(ptr)                 *ACPI_CAST_PTR (u16, ptr)
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#define ACPI_SET32(ptr)                 *ACPI_CAST_PTR (u32, ptr)
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#define ACPI_SET64(ptr)                 *ACPI_CAST_PTR (u64, ptr)
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/*
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 * Pointer manipulation
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 */
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128
#define ACPI_CAST_PTR(t, p)             ((t *) (acpi_uintptr_t) (p))
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#define ACPI_CAST_INDIRECT_PTR(t, p)    ((t **) (acpi_uintptr_t) (p))
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#define ACPI_ADD_PTR(t,a,b)             ACPI_CAST_PTR (t, (ACPI_CAST_PTR (u8,(a)) + (acpi_native_uint)(b)))
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#define ACPI_PTR_DIFF(a,b)              (acpi_native_uint) (ACPI_CAST_PTR (u8,(a)) - ACPI_CAST_PTR (u8,(b)))
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/* Pointer/Integer type conversions */
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#define ACPI_TO_POINTER(i)              ACPI_ADD_PTR (void,(void *) NULL,(acpi_native_uint) i)
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#define ACPI_TO_INTEGER(p)              ACPI_PTR_DIFF (p,(void *) NULL)
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#define ACPI_OFFSET(d,f)                (acpi_size) ACPI_PTR_DIFF (&(((d *)0)->f),(void *) NULL)
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#define ACPI_PHYSADDR_TO_PTR(i)         ACPI_TO_POINTER(i)
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#define ACPI_PTR_TO_PHYSADDR(i)         ACPI_TO_INTEGER(i)
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#ifndef ACPI_MISALIGNMENT_NOT_SUPPORTED
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51
#define ACPI_COMPARE_NAME(a,b)          (*ACPI_CAST_PTR (u32,(a)) == *ACPI_CAST_PTR (u32,(b)))
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#else
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#define ACPI_COMPARE_NAME(a,b)          (!ACPI_STRNCMP (ACPI_CAST_PTR (char,(a)), ACPI_CAST_PTR (char,(b)), ACPI_NAME_SIZE))
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#endif
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/*
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 * Macros for moving data around to/from buffers that are possibly unaligned.
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 * If the hardware supports the transfer of unaligned data, just do the store.
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 * Otherwise, we have to move one byte at a time.
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 */
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#ifdef ACPI_BIG_ENDIAN
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/*
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 * Macros for big-endian machines
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 */
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/* This macro sets a buffer index, starting from the end of the buffer */
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#define ACPI_BUFFER_INDEX(buf_len,buf_offset,byte_gran) ((buf_len) - (((buf_offset)+1) * (byte_gran)))
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/* These macros reverse the bytes during the move, converting little-endian to big endian */
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   /* Big Endian      <==        Little Endian */
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   /*  Hi...Lo                     Lo...Hi     */
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/* 16-bit source, 16/32/64 destination */
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#define ACPI_MOVE_16_TO_16(d,s)         {((  u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[1];\
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        ((  u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[0];}
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#define ACPI_MOVE_16_TO_32(d,s)         {(*(u32 *)(void *)(d))=0;\
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            ((u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[1];\
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            ((u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[0];}
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#define ACPI_MOVE_16_TO_64(d,s)         {(*(u64 *)(void *)(d))=0;\
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                 ((u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[1];\
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                 ((u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[0];}
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/* 32-bit source, 16/32/64 destination */
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#define ACPI_MOVE_32_TO_16(d,s)         ACPI_MOVE_16_TO_16(d,s) /* Truncate to 16 */
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#define ACPI_MOVE_32_TO_32(d,s)         {((  u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[3];\
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                    ((  u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[2];\
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                    ((  u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[1];\
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                    ((  u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[0];}
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#define ACPI_MOVE_32_TO_64(d,s)         {(*(u64 *)(void *)(d))=0;\
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                       ((u8 *)(void *)(d))[4] = ((u8 *)(void *)(s))[3];\
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                       ((u8 *)(void *)(d))[5] = ((u8 *)(void *)(s))[2];\
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                       ((u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[1];\
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                       ((u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[0];}
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/* 64-bit source, 16/32/64 destination */
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#define ACPI_MOVE_64_TO_16(d,s)         ACPI_MOVE_16_TO_16(d,s) /* Truncate to 16 */
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#define ACPI_MOVE_64_TO_32(d,s)         ACPI_MOVE_32_TO_32(d,s) /* Truncate to 32 */
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#define ACPI_MOVE_64_TO_64(d,s)         {((  u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[7];\
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                     ((  u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[6];\
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                     ((  u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[5];\
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                     ((  u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[4];\
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                     ((  u8 *)(void *)(d))[4] = ((u8 *)(void *)(s))[3];\
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                     ((  u8 *)(void *)(d))[5] = ((u8 *)(void *)(s))[2];\
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                     ((  u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[1];\
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                     ((  u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[0];}
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#else
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/*
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 * Macros for little-endian machines
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 */
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/* This macro sets a buffer index, starting from the beginning of the buffer */
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#define ACPI_BUFFER_INDEX(buf_len,buf_offset,byte_gran) (buf_offset)
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#ifndef ACPI_MISALIGNMENT_NOT_SUPPORTED
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/* The hardware supports unaligned transfers, just do the little-endian move */
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/* 16-bit source, 16/32/64 destination */
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#define ACPI_MOVE_16_TO_16(d,s)         *(u16 *)(void *)(d) = *(u16 *)(void *)(s)
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#define ACPI_MOVE_16_TO_32(d,s)         *(u32 *)(void *)(d) = *(u16 *)(void *)(s)
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#define ACPI_MOVE_16_TO_64(d,s)         *(u64 *)(void *)(d) = *(u16 *)(void *)(s)
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/* 32-bit source, 16/32/64 destination */
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#define ACPI_MOVE_32_TO_16(d,s)         ACPI_MOVE_16_TO_16(d,s) /* Truncate to 16 */
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#define ACPI_MOVE_32_TO_32(d,s)         *(u32 *)(void *)(d) = *(u32 *)(void *)(s)
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#define ACPI_MOVE_32_TO_64(d,s)         *(u64 *)(void *)(d) = *(u32 *)(void *)(s)
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/* 64-bit source, 16/32/64 destination */
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#define ACPI_MOVE_64_TO_16(d,s)         ACPI_MOVE_16_TO_16(d,s) /* Truncate to 16 */
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#define ACPI_MOVE_64_TO_32(d,s)         ACPI_MOVE_32_TO_32(d,s) /* Truncate to 32 */
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#define ACPI_MOVE_64_TO_64(d,s)         *(u64 *)(void *)(d) = *(u64 *)(void *)(s)
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#else
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/*
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 * The hardware does not support unaligned transfers.  We must move the
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 * data one byte at a time.  These macros work whether the source or
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 * the destination (or both) is/are unaligned.  (Little-endian move)
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 */
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/* 16-bit source, 16/32/64 destination */
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#define ACPI_MOVE_16_TO_16(d,s)         {((  u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[0];\
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                     ((  u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[1];}
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#define ACPI_MOVE_16_TO_32(d,s)         {(*(u32 *)(void *)(d)) = 0; ACPI_MOVE_16_TO_16(d,s);}
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#define ACPI_MOVE_16_TO_64(d,s)         {(*(u64 *)(void *)(d)) = 0; ACPI_MOVE_16_TO_16(d,s);}
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/* 32-bit source, 16/32/64 destination */
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#define ACPI_MOVE_32_TO_16(d,s)         ACPI_MOVE_16_TO_16(d,s) /* Truncate to 16 */
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#define ACPI_MOVE_32_TO_32(d,s)         {((  u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[0];\
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                     ((  u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[1];\
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                     ((  u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[2];\
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                     ((  u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[3];}
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#define ACPI_MOVE_32_TO_64(d,s)         {(*(u64 *)(void *)(d)) = 0; ACPI_MOVE_32_TO_32(d,s);}
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/* 64-bit source, 16/32/64 destination */
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#define ACPI_MOVE_64_TO_16(d,s)         ACPI_MOVE_16_TO_16(d,s) /* Truncate to 16 */
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#define ACPI_MOVE_64_TO_32(d,s)         ACPI_MOVE_32_TO_32(d,s) /* Truncate to 32 */
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#define ACPI_MOVE_64_TO_64(d,s)         {((  u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[0];\
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                     ((  u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[1];\
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                     ((  u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[2];\
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                     ((  u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[3];\
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                     ((  u8 *)(void *)(d))[4] = ((u8 *)(void *)(s))[4];\
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                     ((  u8 *)(void *)(d))[5] = ((u8 *)(void *)(s))[5];\
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                     ((  u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[6];\
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                     ((  u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[7];}
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#endif
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#endif
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/* Macros based on machine integer width */
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#if ACPI_MACHINE_WIDTH == 32
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#define ACPI_MOVE_SIZE_TO_16(d,s)       ACPI_MOVE_32_TO_16(d,s)
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#elif ACPI_MACHINE_WIDTH == 64
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#define ACPI_MOVE_SIZE_TO_16(d,s)       ACPI_MOVE_64_TO_16(d,s)
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#else
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#error unknown ACPI_MACHINE_WIDTH
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#endif
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/*
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 * Fast power-of-two math macros for non-optimized compilers
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 */
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#define _ACPI_DIV(value,power_of2)      ((u32) ((value) >> (power_of2)))
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#define _ACPI_MUL(value,power_of2)      ((u32) ((value) << (power_of2)))
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#define _ACPI_MOD(value,divisor)        ((u32) ((value) & ((divisor) -1)))
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#define ACPI_DIV_2(a)                   _ACPI_DIV(a,1)
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#define ACPI_MUL_2(a)                   _ACPI_MUL(a,1)
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#define ACPI_MOD_2(a)                   _ACPI_MOD(a,2)
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#define ACPI_DIV_4(a)                   _ACPI_DIV(a,2)
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#define ACPI_MUL_4(a)                   _ACPI_MUL(a,2)
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#define ACPI_MOD_4(a)                   _ACPI_MOD(a,4)
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#define ACPI_DIV_8(a)                   _ACPI_DIV(a,3)
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#define ACPI_MUL_8(a)                   _ACPI_MUL(a,3)
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#define ACPI_MOD_8(a)                   _ACPI_MOD(a,8)
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#define ACPI_DIV_16(a)                  _ACPI_DIV(a,4)
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#define ACPI_MUL_16(a)                  _ACPI_MUL(a,4)
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#define ACPI_MOD_16(a)                  _ACPI_MOD(a,16)
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#define ACPI_DIV_32(a)                  _ACPI_DIV(a,5)
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#define ACPI_MUL_32(a)                  _ACPI_MUL(a,5)
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#define ACPI_MOD_32(a)                  _ACPI_MOD(a,32)
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/*
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 * Rounding macros (Power of two boundaries only)
297
 */
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#define ACPI_ROUND_DOWN(value,boundary)     (((acpi_native_uint)(value)) & \
299
                        (~(((acpi_native_uint) boundary)-1)))
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#define ACPI_ROUND_UP(value,boundary)       ((((acpi_native_uint)(value)) + \
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                        (((acpi_native_uint) boundary)-1)) & \
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                        (~(((acpi_native_uint) boundary)-1)))
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/* Note: sizeof(acpi_native_uint) evaluates to either 2, 4, or 8 */
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#define ACPI_ROUND_DOWN_TO_32BIT(a)         ACPI_ROUND_DOWN(a,4)
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#define ACPI_ROUND_DOWN_TO_64BIT(a)         ACPI_ROUND_DOWN(a,8)
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#define ACPI_ROUND_DOWN_TO_NATIVE_WORD(a)   ACPI_ROUND_DOWN(a,sizeof(acpi_native_uint))
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#define ACPI_ROUND_UP_TO_32BIT(a)           ACPI_ROUND_UP(a,4)
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#define ACPI_ROUND_UP_TO_64BIT(a)           ACPI_ROUND_UP(a,8)
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#define ACPI_ROUND_UP_TO_NATIVE_WORD(a)     ACPI_ROUND_UP(a,sizeof(acpi_native_uint))
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#define ACPI_ROUND_BITS_UP_TO_BYTES(a)      ACPI_DIV_8((a) + 7)
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#define ACPI_ROUND_BITS_DOWN_TO_BYTES(a)    ACPI_DIV_8((a))
317
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#define ACPI_ROUND_UP_TO_1K(a)              (((a) + 1023) >> 10)
319
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/* Generic (non-power-of-two) rounding */
321
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#define ACPI_ROUND_UP_TO(value,boundary)    (((value) + ((boundary)-1)) / (boundary))
323
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#define ACPI_IS_MISALIGNED(value)           (((acpi_native_uint)value) & (sizeof(acpi_native_uint)-1))
325
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/*
327
 * Bitmask creation
328
 * Bit positions start at zero.
329
 * MASK_BITS_ABOVE creates a mask starting AT the position and above
330
 * MASK_BITS_BELOW creates a mask starting one bit BELOW the position
331
 */
332
#define ACPI_MASK_BITS_ABOVE(position)      (~((ACPI_INTEGER_MAX) << ((u32) (position))))
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#define ACPI_MASK_BITS_BELOW(position)      ((ACPI_INTEGER_MAX) << ((u32) (position)))
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#define ACPI_IS_OCTAL_DIGIT(d)              (((char)(d) >= '0') && ((char)(d) <= '7'))
336
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/* Bitfields within ACPI registers */
338
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0
#define ACPI_REGISTER_PREPARE_BITS(val, pos, mask)      ((val << pos) & mask)
340
0
#define ACPI_REGISTER_INSERT_VALUE(reg, pos, mask, val)  reg = (reg & (~(mask))) | ACPI_REGISTER_PREPARE_BITS(val, pos, mask)
341
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0
#define ACPI_INSERT_BITS(target, mask, source)          target = ((target & (~(mask))) | (source & mask))
343
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/* Generate a UUID */
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#define ACPI_INIT_UUID(a,b,c,d0,d1,d2,d3,d4,d5,d6,d7) \
347
  (a) & 0xFF, ((a) >> 8) & 0xFF, ((a) >> 16) & 0xFF, ((a) >> 24) & 0xFF, \
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  (b) & 0xFF, ((b) >> 8) & 0xFF, \
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  (c) & 0xFF, ((c) >> 8) & 0xFF, \
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  (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7)
351
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/*
353
 * An struct acpi_namespace_node * can appear in some contexts,
354
 * where a pointer to an union acpi_operand_object    can also
355
 * appear.  This macro is used to distinguish them.
356
 *
357
 * The "Descriptor" field is the first field in both structures.
358
 */
359
#define ACPI_GET_DESCRIPTOR_TYPE(d)     (((union acpi_descriptor *)(void *)(d))->common.descriptor_type)
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#define ACPI_SET_DESCRIPTOR_TYPE(d,t)   (((union acpi_descriptor *)(void *)(d))->common.descriptor_type = t)
361
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/* Macro to test the object type */
363
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#define ACPI_GET_OBJECT_TYPE(d)         (((union acpi_operand_object *)(void *)(d))->common.type)
365
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/* Macro to check the table flags for SINGLE or MULTIPLE tables are allowed */
367
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#define ACPI_IS_SINGLE_TABLE(x)         (((x) & 0x01) == ACPI_TABLE_SINGLE ? 1 : 0)
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/*
371
 * Macros for the master AML opcode table
372
 */
373
#if defined(ACPI_DISASSEMBLER) || defined (ACPI_DEBUG_OUTPUT)
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#define ACPI_OP(name,Pargs,Iargs,obj_type,class,type,flags)    {name,(u32)(Pargs),(u32)(Iargs),(u32)(flags),obj_type,class,type}
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#else
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#define ACPI_OP(name,Pargs,Iargs,obj_type,class,type,flags)    {(u32)(Pargs),(u32)(Iargs),(u32)(flags),obj_type,class,type}
377
#endif
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#ifdef ACPI_DISASSEMBLER
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#define ACPI_DISASM_ONLY_MEMBERS(a)     a;
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#else
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#define ACPI_DISASM_ONLY_MEMBERS(a)
383
#endif
384
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#define ARG_TYPE_WIDTH                  5
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#define ARG_1(x)                        ((u32)(x))
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#define ARG_2(x)                        ((u32)(x) << (1 * ARG_TYPE_WIDTH))
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#define ARG_3(x)                        ((u32)(x) << (2 * ARG_TYPE_WIDTH))
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#define ARG_4(x)                        ((u32)(x) << (3 * ARG_TYPE_WIDTH))
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#define ARG_5(x)                        ((u32)(x) << (4 * ARG_TYPE_WIDTH))
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#define ARG_6(x)                        ((u32)(x) << (5 * ARG_TYPE_WIDTH))
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#define ARGI_LIST1(a)                   (ARG_1(a))
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#define ARGI_LIST2(a,b)                 (ARG_1(b)|ARG_2(a))
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#define ARGI_LIST3(a,b,c)               (ARG_1(c)|ARG_2(b)|ARG_3(a))
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#define ARGI_LIST4(a,b,c,d)             (ARG_1(d)|ARG_2(c)|ARG_3(b)|ARG_4(a))
397
#define ARGI_LIST5(a,b,c,d,e)           (ARG_1(e)|ARG_2(d)|ARG_3(c)|ARG_4(b)|ARG_5(a))
398
#define ARGI_LIST6(a,b,c,d,e,f)         (ARG_1(f)|ARG_2(e)|ARG_3(d)|ARG_4(c)|ARG_5(b)|ARG_6(a))
399
400
#define ARGP_LIST1(a)                   (ARG_1(a))
401
#define ARGP_LIST2(a,b)                 (ARG_1(a)|ARG_2(b))
402
#define ARGP_LIST3(a,b,c)               (ARG_1(a)|ARG_2(b)|ARG_3(c))
403
#define ARGP_LIST4(a,b,c,d)             (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d))
404
#define ARGP_LIST5(a,b,c,d,e)           (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d)|ARG_5(e))
405
#define ARGP_LIST6(a,b,c,d,e,f)         (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d)|ARG_5(e)|ARG_6(f))
406
407
#define GET_CURRENT_ARG_TYPE(list)      (list & ((u32) 0x1F))
408
#define INCREMENT_ARG_LIST(list)        (list >>= ((u32) ARG_TYPE_WIDTH))
409
410
#if defined (ACPI_DEBUG_OUTPUT) || !defined (ACPI_NO_ERROR_MESSAGES)
411
/*
412
 * Module name is include in both debug and non-debug versions primarily for
413
 * error messages. The __FILE__ macro is not very useful for this, because it
414
 * often includes the entire pathname to the module
415
 */
416
#define ACPI_MODULE_NAME(name)          static const char ACPI_UNUSED_VAR _acpi_module_name[] = name;
417
#else
418
#define ACPI_MODULE_NAME(name)
419
#endif
420
421
/*
422
 * Ascii error messages can be configured out
423
 */
424
#ifndef ACPI_NO_ERROR_MESSAGES
425
#define AE_INFO                         _acpi_module_name, __LINE__
426
427
/*
428
 * Error reporting. Callers module and line number are inserted by AE_INFO,
429
 * the plist contains a set of parens to allow variable-length lists.
430
 * These macros are used for both the debug and non-debug versions of the code.
431
 */
432
18
#define ACPI_INFO(plist)                acpi_ut_info plist
433
0
#define ACPI_WARNING(plist)             acpi_ut_warning plist
434
0
#define ACPI_ERROR(plist)               acpi_ut_error plist
435
#define ACPI_ERROR_NAMESPACE(s,e)       acpi_ns_report_error (AE_INFO, s, e);
436
#define ACPI_ERROR_METHOD(s,n,p,e)      acpi_ns_report_method_error (AE_INFO, s, n, p, e);
437
438
#else
439
440
/* No error messages */
441
442
#define ACPI_INFO(plist)
443
#define ACPI_WARNING(plist)
444
#define ACPI_ERROR(plist)
445
#define ACPI_ERROR_NAMESPACE(s,e)
446
#define ACPI_ERROR_METHOD(s,n,p,e)
447
#endif
448
449
/*
450
 * Debug macros that are conditionally compiled
451
 */
452
#ifdef ACPI_DEBUG_OUTPUT
453
454
/*
455
 * Common parameters used for debug output functions:
456
 * line number, function name, module(file) name, component ID
457
 */
458
#define ACPI_DEBUG_PARAMETERS           __LINE__, ACPI_GET_FUNCTION_NAME, _acpi_module_name, _COMPONENT
459
460
/*
461
 * Function entry tracing
462
 */
463
464
/*
465
 * If ACPI_GET_FUNCTION_NAME was not defined in the compiler-dependent header,
466
 * define it now. This is the case where there the compiler does not support
467
 * a __FUNCTION__ macro or equivalent. We save the function name on the
468
 * local stack.
469
 */
470
#ifndef ACPI_GET_FUNCTION_NAME
471
#define ACPI_GET_FUNCTION_NAME          _acpi_function_name
472
/*
473
 * The Name parameter should be the procedure name as a quoted string.
474
 * This is declared as a local string ("MyFunctionName") so that it can
475
 * be also used by the function exit macros below.
476
 * Note: (const char) is used to be compatible with the debug interfaces
477
 * and macros such as __FUNCTION__.
478
 */
479
#define ACPI_FUNCTION_NAME(name)        const char *_acpi_function_name = #name;
480
481
#else
482
/* Compiler supports __FUNCTION__ (or equivalent) -- Ignore this macro */
483
484
#define ACPI_FUNCTION_NAME(name)
485
#endif
486
487
#ifdef CONFIG_ACPI_DEBUG_FUNC_TRACE
488
489
#define ACPI_FUNCTION_TRACE(a)          ACPI_FUNCTION_NAME(a) \
490
        acpi_ut_trace(ACPI_DEBUG_PARAMETERS)
491
#define ACPI_FUNCTION_TRACE_PTR(a,b)    ACPI_FUNCTION_NAME(a) \
492
             acpi_ut_trace_ptr(ACPI_DEBUG_PARAMETERS,(void *)b)
493
#define ACPI_FUNCTION_TRACE_U32(a,b)    ACPI_FUNCTION_NAME(a) \
494
               acpi_ut_trace_u32(ACPI_DEBUG_PARAMETERS,(u32)b)
495
#define ACPI_FUNCTION_TRACE_STR(a,b)    ACPI_FUNCTION_NAME(a) \
496
                    acpi_ut_trace_str(ACPI_DEBUG_PARAMETERS,(char *)b)
497
498
#define ACPI_FUNCTION_ENTRY()           acpi_ut_track_stack_ptr()
499
500
/*
501
 * Function exit tracing.
502
 * WARNING: These macros include a return statement.  This is usually considered
503
 * bad form, but having a separate exit macro is very ugly and difficult to maintain.
504
 * One of the FUNCTION_TRACE macros above must be used in conjunction with these macros
505
 * so that "_AcpiFunctionName" is defined.
506
 *
507
 * Note: the DO_WHILE0 macro is used to prevent some compilers from complaining
508
 * about these constructs.
509
 */
510
#ifdef ACPI_USE_DO_WHILE_0
511
#define ACPI_DO_WHILE0(a)               do a while(0)
512
#else
513
#define ACPI_DO_WHILE0(a)               a
514
#endif
515
516
#define return_VOID                     ACPI_DO_WHILE0 ({ \
517
                      acpi_ut_exit (ACPI_DEBUG_PARAMETERS); \
518
                      return;})
519
/*
520
 * There are two versions of most of the return macros. The default version is
521
 * safer, since it avoids side-effects by guaranteeing that the argument will
522
 * not be evaluated twice.
523
 *
524
 * A less-safe version of the macros is provided for optional use if the
525
 * compiler uses excessive CPU stack (for example, this may happen in the
526
 * debug case if code optimzation is disabled.)
527
 */
528
#ifndef ACPI_SIMPLE_RETURN_MACROS
529
530
#define return_ACPI_STATUS(s)           ACPI_DO_WHILE0 ({ \
531
                      register acpi_status _s = (s); \
532
                      acpi_ut_status_exit (ACPI_DEBUG_PARAMETERS, _s); \
533
                      return (_s); })
534
#define return_PTR(s)                   ACPI_DO_WHILE0 ({ \
535
                      register void *_s = (void *) (s); \
536
                      acpi_ut_ptr_exit (ACPI_DEBUG_PARAMETERS, (u8 *) _s); \
537
                      return (_s); })
538
#define return_VALUE(s)                 ACPI_DO_WHILE0 ({ \
539
                      register acpi_integer _s = (s); \
540
                      acpi_ut_value_exit (ACPI_DEBUG_PARAMETERS, _s); \
541
                      return (_s); })
542
#define return_UINT8(s)                 ACPI_DO_WHILE0 ({ \
543
                      register u8 _s = (u8) (s); \
544
                      acpi_ut_value_exit (ACPI_DEBUG_PARAMETERS, (acpi_integer) _s); \
545
                      return (_s); })
546
#define return_UINT32(s)                ACPI_DO_WHILE0 ({ \
547
                      register u32 _s = (u32) (s); \
548
                      acpi_ut_value_exit (ACPI_DEBUG_PARAMETERS, (acpi_integer) _s); \
549
                      return (_s); })
550
#else       /* Use original less-safe macros */
551
552
#define return_ACPI_STATUS(s)           ACPI_DO_WHILE0 ({ \
553
                      acpi_ut_status_exit (ACPI_DEBUG_PARAMETERS, (s)); \
554
                      return((s)); })
555
#define return_PTR(s)                   ACPI_DO_WHILE0 ({ \
556
                      acpi_ut_ptr_exit (ACPI_DEBUG_PARAMETERS, (u8 *) (s)); \
557
                      return((s)); })
558
#define return_VALUE(s)                 ACPI_DO_WHILE0 ({ \
559
                      acpi_ut_value_exit (ACPI_DEBUG_PARAMETERS, (acpi_integer) (s)); \
560
                      return((s)); })
561
#define return_UINT8(s)                 return_VALUE(s)
562
#define return_UINT32(s)                return_VALUE(s)
563
564
#endif        /* ACPI_SIMPLE_RETURN_MACROS */
565
566
#else /* !CONFIG_ACPI_DEBUG_FUNC_TRACE */
567
568
#define ACPI_FUNCTION_TRACE(a)
569
#define ACPI_FUNCTION_TRACE_PTR(a,b)
570
#define ACPI_FUNCTION_TRACE_U32(a,b)
571
#define ACPI_FUNCTION_TRACE_STR(a,b)
572
#define ACPI_FUNCTION_EXIT
573
#define ACPI_FUNCTION_STATUS_EXIT(s)
574
#define ACPI_FUNCTION_VALUE_EXIT(s)
575
#define ACPI_FUNCTION_TRACE(a)
576
#define ACPI_FUNCTION_ENTRY()
577
578
#define return_VOID                     return
579
#define return_ACPI_STATUS(s)           return(s)
580
#define return_VALUE(s)                 return(s)
581
#define return_UINT8(s)                 return(s)
582
#define return_UINT32(s)                return(s)
583
#define return_PTR(s)                   return(s)
584
585
#endif /* CONFIG_ACPI_DEBUG_FUNC_TRACE */
586
587
/* Conditional execution */
588
589
#define ACPI_DEBUG_EXEC(a)              a
590
#define ACPI_NORMAL_EXEC(a)
591
592
#define ACPI_DEBUG_DEFINE(a)            a;
593
#define ACPI_DEBUG_ONLY_MEMBERS(a)      a;
594
#define _VERBOSE_STRUCTURES
595
596
/*
597
 * Master debug print macros
598
 * Print iff:
599
 *    1) Debug print for the current component is enabled
600
 *    2) Debug error level or trace level for the print statement is enabled
601
 */
602
#define ACPI_DEBUG_PRINT(plist)         acpi_ut_debug_print plist
603
#define ACPI_DEBUG_PRINT_RAW(plist)     acpi_ut_debug_print_raw plist
604
605
#else
606
/*
607
 * This is the non-debug case -- make everything go away,
608
 * leaving no executable debug code!
609
 */
610
#define ACPI_DEBUG_EXEC(a)
611
#define ACPI_NORMAL_EXEC(a)             a;
612
613
#define ACPI_DEBUG_DEFINE(a)    do { } while(0)
614
#define ACPI_DEBUG_ONLY_MEMBERS(a)  do { } while(0)
615
0
#define ACPI_FUNCTION_NAME(a)   do { } while(0)
616
1
#define ACPI_FUNCTION_TRACE(a)    do { } while(0)
617
#define ACPI_FUNCTION_TRACE_PTR(a,b)  do { } while(0)
618
0
#define ACPI_FUNCTION_TRACE_U32(a,b)  do { } while(0)
619
#define ACPI_FUNCTION_TRACE_STR(a,b)  do { } while(0)
620
#define ACPI_FUNCTION_EXIT    do { } while(0)
621
#define ACPI_FUNCTION_STATUS_EXIT(s)  do { } while(0)
622
#define ACPI_FUNCTION_VALUE_EXIT(s) do { } while(0)
623
0
#define ACPI_FUNCTION_ENTRY()   do { } while(0)
624
0
#define ACPI_DEBUG_PRINT(pl)    do { } while(0)
625
#define ACPI_DEBUG_PRINT_RAW(pl)  do { } while(0)
626
627
#define return_VOID                     return
628
1
#define return_ACPI_STATUS(s)           return(s)
629
#define return_VALUE(s)                 return(s)
630
#define return_UINT8(s)                 return(s)
631
#define return_UINT32(s)                return(s)
632
#define return_PTR(s)                   return(s)
633
634
#endif
635
636
#endif        /* ACMACROS_H */