ReactOS  0.4.15-dev-3207-ga415bd4
aclinuxex.h
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1 /******************************************************************************
2  *
3  * Name: aclinuxex.h - Extra OS specific defines, etc. for Linux
4  *
5  *****************************************************************************/
6 
7 /*
8  * Copyright (C) 2000 - 2021, Intel Corp.
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15  * notice, this list of conditions, and the following disclaimer,
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42  */
43 
44 #ifndef __ACLINUXEX_H__
45 #define __ACLINUXEX_H__
46 
47 #ifdef __KERNEL__
48 
49 #ifndef ACPI_USE_NATIVE_DIVIDE
50 
51 #ifndef ACPI_DIV_64_BY_32
52 #define ACPI_DIV_64_BY_32(n_hi, n_lo, d32, q32, r32) \
53  do { \
54  UINT64 (__n) = ((UINT64) n_hi) << 32 | (n_lo); \
55  (r32) = do_div ((__n), (d32)); \
56  (q32) = (UINT32) (__n); \
57  } while (0)
58 #endif
59 
60 #ifndef ACPI_SHIFT_RIGHT_64
61 #define ACPI_SHIFT_RIGHT_64(n_hi, n_lo) \
62  do { \
63  (n_lo) >>= 1; \
64  (n_lo) |= (((n_hi) & 1) << 31); \
65  (n_hi) >>= 1; \
66  } while (0)
67 #endif
68 
69 #endif
70 
71 /*
72  * Overrides for in-kernel ACPICA
73  */
75  void);
76 
78  void);
79 
80 /*
81  * The irqs_disabled() check is for resume from RAM.
82  * Interrupts are off during resume, just like they are for boot.
83  * However, boot has (system_state != SYSTEM_RUNNING)
84  * to quiet __might_sleep() in kmalloc() and resume does not.
85  */
86 static inline void *
88  ACPI_SIZE Size)
89 {
90  return kmalloc (Size, irqs_disabled () ? GFP_ATOMIC : GFP_KERNEL);
91 }
92 
93 static inline void *
95  ACPI_SIZE Size)
96 {
97  return kzalloc (Size, irqs_disabled () ? GFP_ATOMIC : GFP_KERNEL);
98 }
99 
100 static inline void
101 AcpiOsFree (
102  void *Memory)
103 {
104  kfree (Memory);
105 }
106 
107 static inline void *
110 {
111  return kmem_cache_zalloc (Cache,
112  irqs_disabled () ? GFP_ATOMIC : GFP_KERNEL);
113 }
114 
115 static inline ACPI_THREAD_ID
117  void)
118 {
119  return (ACPI_THREAD_ID) (unsigned long) current;
120 }
121 
122 /*
123  * When lockdep is enabled, the spin_lock_init() macro stringifies it's
124  * argument and uses that as a name for the lock in debugging.
125  * By executing spin_lock_init() in a macro the key changes from "lock" for
126  * all locks to the name of the argument of acpi_os_create_lock(), which
127  * prevents lockdep from reporting false positives for ACPICA locks.
128  */
129 #define AcpiOsCreateLock(__Handle) \
130  ({ \
131  spinlock_t *Lock = ACPI_ALLOCATE(sizeof(*Lock)); \
132  if (Lock) { \
133  *(__Handle) = Lock; \
134  spin_lock_init(*(__Handle)); \
135  } \
136  Lock ? AE_OK : AE_NO_MEMORY; \
137  })
138 
139 static inline BOOLEAN
141  void *Pointer,
142  ACPI_SIZE Length)
143 {
144  return TRUE;
145 }
146 
147 static inline ACPI_STATUS
149  void)
150 {
151  return AE_OK;
152 }
153 
154 static inline void
156  void)
157 {
158  return;
159 }
160 
161 
162 /*
163  * OSL interfaces added by Linux
164  */
165 
166 #endif /* __KERNEL__ */
167 
168 #endif /* __ACLINUXEX_H__ */
void * AcpiOsAllocate(ACPI_SIZE Size)
Definition: osl.c:160
_In_ ULONG _In_ ULONG _In_ ULONG Length
Definition: ntddpcm.h:101
#define GFP_ATOMIC
Definition: module.h:655
ACPI_THREAD_ID AcpiOsGetThreadId(void)
Definition: osl.c:217
Definition: fatfs.h:173
#define TRUE
Definition: types.h:120
IN PVOID IN PVOID IN USHORT IN USHORT Size
Definition: pci.h:361
UINT32 ACPI_STATUS
Definition: actypes.h:460
ACPI_STATUS AcpiOsTerminate(void)
Definition: osl.c:35
unsigned char BOOLEAN
#define GFP_KERNEL
Definition: module.h:658
void * AcpiOsAllocateZeroed(ACPI_SIZE Size)
Definition: utalloc.c:68
#define ACPI_CACHE_T
Definition: actypes.h:261
ACPI_STATUS AcpiOsInitialize(void)
Definition: osl.c:21
_Must_inspect_result_ _In_opt_ PWDF_OBJECT_ATTRIBUTES _In_ _Strict_type_match_ POOL_TYPE _In_opt_ ULONG _In_ _Out_ WDFMEMORY * Memory
Definition: wdfmemory.h:169
ACPI_STATUS AcpiOsInitializeDebugger(void)
struct task_struct * current
Definition: linux.c:32
BOOLEAN AcpiOsReadable(void *Pointer, ACPI_SIZE Length)
Definition: osl.c:175
void * kmalloc(size_t, int)
void * AcpiOsAcquireObject(ACPI_CACHE_T *Cache)
#define long
Definition: qsort.c:33
#define ACPI_INIT_FUNCTION
Definition: acenv.h:410
void * kzalloc(int size, int flags)
Definition: linux.c:34
void AcpiOsFree(void *Memory)
Definition: osl.c:167
#define AE_OK
Definition: acexcep.h:97
#define ACPI_THREAD_ID
Definition: actypes.h:144
void AcpiOsTerminateDebugger(void)
void kfree(const void *)