1 /******************************************************************************
3 * Name: aclinux.h - OS specific defines, etc. for Linux
5 *****************************************************************************/
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47 /* Common (in-kernel/user-space) ACPICA configuration */
49 #define ACPI_USE_SYSTEM_CLIBRARY
50 #define ACPI_USE_DO_WHILE_0
51 #define ACPI_MUTEX_TYPE ACPI_BINARY_SEMAPHORE
55 #define ACPI_USE_SYSTEM_INTTYPES
57 /* Compile for reduced hardware mode only with this kernel config */
59 #ifdef CONFIG_ACPI_REDUCED_HARDWARE_ONLY
60 #define ACPI_REDUCED_HARDWARE 1
63 #include <linux/string.h>
64 #include <linux/kernel.h>
65 #include <linux/ctype.h>
66 #include <linux/sched.h>
67 #include <linux/atomic.h>
68 #include <linux/math64.h>
69 #include <linux/slab.h>
70 #include <linux/spinlock_types.h>
71 #ifdef EXPORT_ACPI_INTERFACES
72 #include <linux/export.h>
76 /* Host-dependent types and defines for in-kernel ACPICA */
78 #define ACPI_MACHINE_WIDTH BITS_PER_LONG
79 #define ACPI_EXPORT_SYMBOL(symbol) EXPORT_SYMBOL(symbol);
80 #define strtoul simple_strtoul
82 #define acpi_cache_t struct kmem_cache
83 #define acpi_spinlock spinlock_t *
84 #define acpi_cpu_flags unsigned long
86 #else /* !__KERNEL__ */
94 /* Define/disable kernel-specific declarators */
104 /* Host-dependent types and defines for user-space ACPICA */
106 #define ACPI_FLUSH_CPU_CACHE()
107 #define ACPI_CAST_PTHREAD_T(pthread) ((acpi_thread_id) (pthread))
109 #if defined(__ia64__) || defined(__x86_64__) ||\
110 defined(__aarch64__) || defined(__PPC64__)
111 #define ACPI_MACHINE_WIDTH 64
112 #define COMPILER_DEPENDENT_INT64 long
113 #define COMPILER_DEPENDENT_UINT64 unsigned long
115 #define ACPI_MACHINE_WIDTH 32
116 #define COMPILER_DEPENDENT_INT64 long long
117 #define COMPILER_DEPENDENT_UINT64 unsigned long long
118 #define ACPI_USE_NATIVE_DIVIDE
125 #endif /* __KERNEL__ */
129 #include <acpi/platform/acgcc.h>
134 * FIXME: Inclusion of actypes.h
135 * Linux kernel need this before defining inline OSL interfaces as
136 * actypes.h need to be included to find ACPICA type definitions.
137 * Since from ACPICA's perspective, the actypes.h should be included after
138 * acenv.h (aclinux.h), this leads to a inclusion mis-ordering issue.
140 #include <acpi/actypes.h>
143 * Overrides for in-kernel ACPICA
145 acpi_status __init acpi_os_initialize(void);
146 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_initialize
148 acpi_status acpi_os_terminate(void);
149 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_terminate
152 * Memory allocation/deallocation
156 * The irqs_disabled() check is for resume from RAM.
157 * Interrupts are off during resume, just like they are for boot.
158 * However, boot has (system_state != SYSTEM_RUNNING)
159 * to quiet __might_sleep() in kmalloc() and resume does not.
161 static inline void *acpi_os_allocate(acpi_size size)
163 return kmalloc(size, irqs_disabled()? GFP_ATOMIC : GFP_KERNEL);
166 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_allocate
168 /* Use native linux version of acpi_os_allocate_zeroed */
170 static inline void *acpi_os_allocate_zeroed(acpi_size size)
172 return kzalloc(size, irqs_disabled()? GFP_ATOMIC : GFP_KERNEL);
175 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_allocate_zeroed
176 #define USE_NATIVE_ALLOCATE_ZEROED
178 static inline void acpi_os_free(void *memory)
183 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_free
185 static inline void *acpi_os_acquire_object(acpi_cache_t * cache)
187 return kmem_cache_zalloc(cache,
188 irqs_disabled()? GFP_ATOMIC : GFP_KERNEL);
191 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_acquire_object
193 static inline acpi_thread_id acpi_os_get_thread_id(void)
195 return (acpi_thread_id) (unsigned long)current;
198 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_thread_id
200 #ifndef CONFIG_PREEMPT
203 * Used within ACPICA to show where it is safe to preempt execution
204 * when CONFIG_PREEMPT=n
206 #define ACPI_PREEMPTION_POINT() \
208 if (!irqs_disabled()) \
215 * When lockdep is enabled, the spin_lock_init() macro stringifies it's
216 * argument and uses that as a name for the lock in debugging.
217 * By executing spin_lock_init() in a macro the key changes from "lock" for
218 * all locks to the name of the argument of acpi_os_create_lock(), which
219 * prevents lockdep from reporting false positives for ACPICA locks.
221 #define acpi_os_create_lock(__handle) \
223 spinlock_t *lock = ACPI_ALLOCATE(sizeof(*lock)); \
225 *(__handle) = lock; \
226 spin_lock_init(*(__handle)); \
228 lock ? AE_OK : AE_NO_MEMORY; \
230 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_create_lock
232 void __iomem *acpi_os_map_memory(acpi_physical_address where, acpi_size length);
233 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_map_memory
235 void acpi_os_unmap_memory(void __iomem * logical_address, acpi_size size);
236 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_unmap_memory
239 * OSL interfaces used by debugger/disassembler
241 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_readable
242 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_writable
245 * OSL interfaces used by utilities
247 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_redirect_output
248 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_line
249 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_table_by_name
250 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_table_by_index
251 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_table_by_address
252 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_open_directory
253 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_next_filename
254 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_close_directory
257 * OSL interfaces added by Linux
259 void early_acpi_os_unmap_memory(void __iomem * virt, acpi_size size);
261 #endif /* __KERNEL__ */
263 #endif /* __ACLINUX_H__ */