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@@ -1,11 +1,11 @@
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/******************************************************************************
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*
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- * Name: aclinux.h - OS specific defines, etc.
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+ * Name: aclinux.h - OS specific defines, etc. for Linux
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*
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*****************************************************************************/
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/*
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- * Copyright (C) 2000 - 2008, Intel Corp.
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+ * Copyright (C) 2000 - 2009, 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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@@ -44,10 +44,13 @@
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#ifndef __ACLINUX_H__
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#define __ACLINUX_H__
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+/* Common (in-kernel/user-space) ACPICA configuration */
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+
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#define ACPI_USE_SYSTEM_CLIBRARY
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#define ACPI_USE_DO_WHILE_0
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#define ACPI_MUTEX_TYPE ACPI_BINARY_SEMAPHORE
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+
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#ifdef __KERNEL__
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#include <linux/string.h>
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@@ -63,15 +66,18 @@
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#include <linux/spinlock_types.h>
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#include <asm/current.h>
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-/* Host-dependent types and defines */
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+/* Host-dependent types and defines for in-kernel ACPICA */
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#define ACPI_MACHINE_WIDTH BITS_PER_LONG
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-#define acpi_cache_t struct kmem_cache
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-#define acpi_spinlock spinlock_t *
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#define ACPI_EXPORT_SYMBOL(symbol) EXPORT_SYMBOL(symbol);
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#define strtoul simple_strtoul
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-#else /* !__KERNEL__ */
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+#define acpi_cache_t struct kmem_cache
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+#define acpi_spinlock spinlock_t *
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+#define acpi_cpu_flags unsigned long
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+#define acpi_thread_id struct task_struct *
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+
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+#else /* !__KERNEL__ */
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#include <stdarg.h>
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#include <string.h>
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@@ -79,6 +85,11 @@
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#include <ctype.h>
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#include <unistd.h>
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+/* Host-dependent types and defines for user-space ACPICA */
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+
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+#define ACPI_FLUSH_CPU_CACHE()
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+#define acpi_thread_id pthread_t
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+
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#if defined(__ia64__) || defined(__x86_64__)
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#define ACPI_MACHINE_WIDTH 64
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#define COMPILER_DEPENDENT_INT64 long
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@@ -94,17 +105,17 @@
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#define __cdecl
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#endif
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-#define ACPI_FLUSH_CPU_CACHE()
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-#endif /* __KERNEL__ */
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+#endif /* __KERNEL__ */
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/* Linux uses GCC */
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#include "acgcc.h"
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-#define acpi_cpu_flags unsigned long
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-
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-#define acpi_thread_id struct task_struct *
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+#ifdef __KERNEL__
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+/*
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+ * Overrides for in-kernel ACPICA
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+ */
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static inline acpi_thread_id acpi_os_get_thread_id(void)
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{
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return current;
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@@ -119,30 +130,32 @@ static inline acpi_thread_id acpi_os_get_thread_id(void)
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#include <acpi/actypes.h>
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static inline void *acpi_os_allocate(acpi_size size)
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{
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- return kmalloc(size, irqs_disabled()? GFP_ATOMIC : GFP_KERNEL);
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+ return kmalloc(size, irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL);
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}
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+
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static inline void *acpi_os_allocate_zeroed(acpi_size size)
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{
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- return kzalloc(size, irqs_disabled()? GFP_ATOMIC : GFP_KERNEL);
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+ return kzalloc(size, irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL);
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}
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static inline void *acpi_os_acquire_object(acpi_cache_t * cache)
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{
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return kmem_cache_zalloc(cache,
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- irqs_disabled()? GFP_ATOMIC : GFP_KERNEL);
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+ irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL);
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}
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-#define ACPI_ALLOCATE(a) acpi_os_allocate(a)
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-#define ACPI_ALLOCATE_ZEROED(a) acpi_os_allocate_zeroed(a)
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-#define ACPI_FREE(a) kfree(a)
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+#define ACPI_ALLOCATE(a) acpi_os_allocate(a)
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+#define ACPI_ALLOCATE_ZEROED(a) acpi_os_allocate_zeroed(a)
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+#define ACPI_FREE(a) kfree(a)
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-/*
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- * We need to show where it is safe to preempt execution of ACPICA
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- */
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-#define ACPI_PREEMPTION_POINT() \
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- do { \
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- if (!irqs_disabled()) \
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- cond_resched(); \
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+/* Used within ACPICA to show where it is safe to preempt execution */
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+
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+#define ACPI_PREEMPTION_POINT() \
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+ do { \
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+ if (!irqs_disabled()) \
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+ cond_resched(); \
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} while (0)
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-#endif /* __ACLINUX_H__ */
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+#endif /* __KERNEL__ */
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+
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+#endif /* __ACLINUX_H__ */
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