1 /******************************************************************************
3 * Name: aclinuxex.h - Extra OS specific defines, etc. for Linux
5 *****************************************************************************/
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44 #ifndef __ACLINUXEX_H__
45 #define __ACLINUXEX_H__
50 * Overrides for in-kernel ACPICA
52 ACPI_STATUS __init AcpiOsInitialize (
55 ACPI_STATUS AcpiOsTerminate (
59 * The irqs_disabled() check is for resume from RAM.
60 * Interrupts are off during resume, just like they are for boot.
61 * However, boot has (system_state != SYSTEM_RUNNING)
62 * to quiet __might_sleep() in kmalloc() and resume does not.
68 return kmalloc (Size, irqs_disabled () ? GFP_ATOMIC : GFP_KERNEL);
72 AcpiOsAllocateZeroed (
75 return kzalloc (Size, irqs_disabled () ? GFP_ATOMIC : GFP_KERNEL);
89 return kmem_cache_zalloc (Cache,
90 irqs_disabled () ? GFP_ATOMIC : GFP_KERNEL);
93 static inline ACPI_THREAD_ID
97 return (ACPI_THREAD_ID) (unsigned long) current;
101 * When lockdep is enabled, the spin_lock_init() macro stringifies it's
102 * argument and uses that as a name for the lock in debugging.
103 * By executing spin_lock_init() in a macro the key changes from "lock" for
104 * all locks to the name of the argument of acpi_os_create_lock(), which
105 * prevents lockdep from reporting false positives for ACPICA locks.
107 #define AcpiOsCreateLock(__Handle) \
109 spinlock_t *Lock = ACPI_ALLOCATE(sizeof(*Lock)); \
111 *(__Handle) = Lock; \
112 spin_lock_init(*(__Handle)); \
114 Lock ? AE_OK : AE_NO_MEMORY; \
118 * OSL interfaces added by Linux
121 EarlyAcpiOsUnmapMemory (
125 #endif /* __KERNEL__ */
127 #endif /* __ACLINUXEX_H__ */