mirror of
https://github.com/torvalds/linux.git
synced 2024-11-29 23:51:37 +00:00
ae57857b9b
To avoid "performing pointer subtraction with a null pointer has undefined behavior" compiler warnings, use uintptr_t and offsetof() that are always available during Linux kernel builds to define acpi_uintptr_t and the ACPI_TO_INTEGER() and ACPI_OFFSET() macros. Based on earlier proposal from Arnd Bergmann. Link: https://lore.kernel.org/linux-acpi/20210927121338.938994-1-arnd@kernel.org Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
222 lines
6.4 KiB
C
222 lines
6.4 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
|
|
/******************************************************************************
|
|
*
|
|
* Name: aclinux.h - OS specific defines, etc. for Linux
|
|
*
|
|
* Copyright (C) 2000 - 2021, Intel Corp.
|
|
*
|
|
*****************************************************************************/
|
|
|
|
#ifndef __ACLINUX_H__
|
|
#define __ACLINUX_H__
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
/* ACPICA external files should not include ACPICA headers directly. */
|
|
|
|
#if !defined(BUILDING_ACPICA) && !defined(_LINUX_ACPI_H)
|
|
#error "Please don't include <acpi/acpi.h> directly, include <linux/acpi.h> instead."
|
|
#endif
|
|
|
|
#endif
|
|
|
|
/* Common (in-kernel/user-space) ACPICA configuration */
|
|
|
|
#define ACPI_USE_SYSTEM_CLIBRARY
|
|
#define ACPI_USE_DO_WHILE_0
|
|
#define ACPI_IGNORE_PACKAGE_RESOLUTION_ERRORS
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
#define ACPI_USE_SYSTEM_INTTYPES
|
|
#define ACPI_USE_GPE_POLLING
|
|
|
|
/* Kernel specific ACPICA configuration */
|
|
|
|
#ifdef CONFIG_PCI
|
|
#define ACPI_PCI_CONFIGURED
|
|
#endif
|
|
|
|
#ifdef CONFIG_ACPI_REDUCED_HARDWARE_ONLY
|
|
#define ACPI_REDUCED_HARDWARE 1
|
|
#endif
|
|
|
|
#ifdef CONFIG_ACPI_DEBUGGER
|
|
#define ACPI_DEBUGGER
|
|
#endif
|
|
|
|
#ifdef CONFIG_ACPI_DEBUG
|
|
#define ACPI_MUTEX_DEBUG
|
|
#endif
|
|
|
|
#include <linux/string.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/ctype.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/atomic.h>
|
|
#include <linux/math64.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/spinlock_types.h>
|
|
#ifdef EXPORT_ACPI_INTERFACES
|
|
#include <linux/export.h>
|
|
#endif
|
|
#ifdef CONFIG_ACPI
|
|
#include <asm/acenv.h>
|
|
#endif
|
|
|
|
#define ACPI_INIT_FUNCTION __init
|
|
|
|
/* Use a specific bugging default separate from ACPICA */
|
|
|
|
#undef ACPI_DEBUG_DEFAULT
|
|
#define ACPI_DEBUG_DEFAULT (ACPI_LV_INFO | ACPI_LV_REPAIR)
|
|
|
|
#ifndef CONFIG_ACPI
|
|
|
|
/* External globals for __KERNEL__, stubs is needed */
|
|
|
|
#define ACPI_GLOBAL(t,a)
|
|
#define ACPI_INIT_GLOBAL(t,a,b)
|
|
|
|
/* Generating stubs for configurable ACPICA macros */
|
|
|
|
#define ACPI_NO_MEM_ALLOCATIONS
|
|
|
|
/* Generating stubs for configurable ACPICA functions */
|
|
|
|
#define ACPI_NO_ERROR_MESSAGES
|
|
#undef ACPI_DEBUG_OUTPUT
|
|
|
|
/* External interface for __KERNEL__, stub is needed */
|
|
|
|
#define ACPI_EXTERNAL_RETURN_STATUS(prototype) \
|
|
static ACPI_INLINE prototype {return(AE_NOT_CONFIGURED);}
|
|
#define ACPI_EXTERNAL_RETURN_OK(prototype) \
|
|
static ACPI_INLINE prototype {return(AE_OK);}
|
|
#define ACPI_EXTERNAL_RETURN_VOID(prototype) \
|
|
static ACPI_INLINE prototype {return;}
|
|
#define ACPI_EXTERNAL_RETURN_UINT32(prototype) \
|
|
static ACPI_INLINE prototype {return(0);}
|
|
#define ACPI_EXTERNAL_RETURN_PTR(prototype) \
|
|
static ACPI_INLINE prototype {return(NULL);}
|
|
|
|
#endif /* CONFIG_ACPI */
|
|
|
|
/* Host-dependent types and defines for in-kernel ACPICA */
|
|
|
|
#define ACPI_MACHINE_WIDTH BITS_PER_LONG
|
|
#define ACPI_USE_NATIVE_MATH64
|
|
#define ACPI_EXPORT_SYMBOL(symbol) EXPORT_SYMBOL(symbol);
|
|
#define strtoul simple_strtoul
|
|
|
|
#define acpi_cache_t struct kmem_cache
|
|
#define acpi_spinlock spinlock_t *
|
|
#define acpi_raw_spinlock raw_spinlock_t *
|
|
#define acpi_cpu_flags unsigned long
|
|
|
|
#define acpi_uintptr_t uintptr_t
|
|
|
|
#define ACPI_TO_INTEGER(p) ((uintptr_t)(p))
|
|
#define ACPI_OFFSET(d, f) offsetof(d, f)
|
|
|
|
/* Use native linux version of acpi_os_allocate_zeroed */
|
|
|
|
#define USE_NATIVE_ALLOCATE_ZEROED
|
|
|
|
/* Use logical addresses for accessing GPE registers in system memory */
|
|
|
|
#define ACPI_GPE_USE_LOGICAL_ADDRESSES
|
|
|
|
/*
|
|
* Overrides for in-kernel ACPICA
|
|
*/
|
|
#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_initialize
|
|
#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_terminate
|
|
#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_allocate
|
|
#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_allocate_zeroed
|
|
#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_free
|
|
#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_acquire_object
|
|
#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_thread_id
|
|
#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_create_lock
|
|
#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_create_raw_lock
|
|
#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_delete_raw_lock
|
|
#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_acquire_raw_lock
|
|
#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_release_raw_lock
|
|
|
|
/*
|
|
* OSL interfaces used by debugger/disassembler
|
|
*/
|
|
#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_readable
|
|
#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_writable
|
|
#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_initialize_debugger
|
|
#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_terminate_debugger
|
|
|
|
/*
|
|
* OSL interfaces used by utilities
|
|
*/
|
|
#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_redirect_output
|
|
#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_table_by_name
|
|
#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_table_by_index
|
|
#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_table_by_address
|
|
#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_open_directory
|
|
#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_next_filename
|
|
#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_close_directory
|
|
|
|
#define ACPI_MSG_ERROR KERN_ERR "ACPI Error: "
|
|
#define ACPI_MSG_EXCEPTION KERN_ERR "ACPI Exception: "
|
|
#define ACPI_MSG_WARNING KERN_WARNING "ACPI Warning: "
|
|
#define ACPI_MSG_INFO KERN_INFO "ACPI: "
|
|
|
|
#define ACPI_MSG_BIOS_ERROR KERN_ERR "ACPI BIOS Error (bug): "
|
|
#define ACPI_MSG_BIOS_WARNING KERN_WARNING "ACPI BIOS Warning (bug): "
|
|
|
|
/*
|
|
* Linux wants to use designated initializers for function pointer structs.
|
|
*/
|
|
#define ACPI_STRUCT_INIT(field, value) .field = value
|
|
|
|
#else /* !__KERNEL__ */
|
|
|
|
#define ACPI_USE_STANDARD_HEADERS
|
|
|
|
#ifdef ACPI_USE_STANDARD_HEADERS
|
|
#include <unistd.h>
|
|
#endif
|
|
|
|
/* Define/disable kernel-specific declarators */
|
|
|
|
#ifndef __init
|
|
#define __init
|
|
#endif
|
|
#ifndef __iomem
|
|
#define __iomem
|
|
#endif
|
|
|
|
/* Host-dependent types and defines for user-space ACPICA */
|
|
|
|
#define ACPI_FLUSH_CPU_CACHE()
|
|
#define ACPI_CAST_PTHREAD_T(pthread) ((acpi_thread_id) (pthread))
|
|
|
|
#if defined(__ia64__) || (defined(__x86_64__) && !defined(__ILP32__)) ||\
|
|
defined(__aarch64__) || defined(__PPC64__) ||\
|
|
defined(__s390x__) ||\
|
|
(defined(__riscv) && (defined(__LP64__) || defined(_LP64)))
|
|
#define ACPI_MACHINE_WIDTH 64
|
|
#define COMPILER_DEPENDENT_INT64 long
|
|
#define COMPILER_DEPENDENT_UINT64 unsigned long
|
|
#else
|
|
#define ACPI_MACHINE_WIDTH 32
|
|
#define COMPILER_DEPENDENT_INT64 long long
|
|
#define COMPILER_DEPENDENT_UINT64 unsigned long long
|
|
#define ACPI_USE_NATIVE_DIVIDE
|
|
#define ACPI_USE_NATIVE_MATH64
|
|
#endif
|
|
|
|
#ifndef __cdecl
|
|
#define __cdecl
|
|
#endif
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
#endif /* __ACLINUX_H__ */
|