rom/exec/exec_intern.h

   1 /*
   2     Copyright © 1995-2013, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc: Private data belonging to exec.library
   6     Lang:
   7 */
   8 #ifndef __EXEC_INTERN_H__
   9 #define __EXEC_INTERN_H__
  10
  11 /* This is a short file that contains a few things every Exec function needs */
  12
  13 #include <aros/debug.h> /* Needed for aros_print_not_implemented macro */
  14 #include <aros/system.h>
  15 #include <aros/libcall.h>
  16 #include <exec/execbase.h>
  17 #include <proto/exec.h>
  18
  19 #include <exec_platform.h>
  20
  21 #if defined(__AROSEXEC_SMP__)
  22 #include <aros/types/spinlock_s.h>
  23 #endif
  24
  25 #define ALERT_BUFFER_SIZE 2048
  26
  27 /* Internals of this structure are host-specific, we don't know them here */
  28 struct HostInterface;
  29
  30 struct SupervisorAlertTask
  31 {
  32     struct Task *   sat_Task;           /* Task that tries to display supervisor-level alerts    */
  33     BOOL            sat_IsAvailable;
  34     IPTR            sat_Params[2];
  35 };
  36
  37 /* A private portion of ExecBase */
  38 struct IntExecBase
  39 {
  40     struct ExecBase pub;
  41     struct List ResetHandlers;                  /* Reset handlers list                                   */
  42     struct Interrupt ColdResetHandler;          /* Reset handler that causes cold reboot */
  43     struct Interrupt WarmResetHandler;          /* Reset handler that causes warm reboot */
  44     struct Interrupt ShutdownHandler;           /* Reset handler that halts CPU */
  45     struct MinList AllocMemList;                /* Mungwall allocations list                             */
  46     struct SignalSemaphore MemListSem;          /* Memory list protection semaphore                      */
  47     struct SignalSemaphore LowMemSem;           /* Lock for single-threading low memory handlers         */
  48 #if defined(__AROSEXEC_SMP__)
  49     spinlock_t TaskRunningSpinLock;
  50     struct List        TaskRunning;      /* Tasks that are running on CPUs */
  51     spinlock_t TaskReadySpinLock;
  52     spinlock_t TaskWaitSpinLock;
  53 #endif
  54     APTR   KernelBase;                          /* kernel.resource base                                  */
  55     struct Library *DebugBase;                  /* debug.library base                                    */
  56     ULONG  PageSize;                            /* Memory page size                                      */
  57     ULONG  IntFlags;                            /* Internal flags, see below                             */
  58     struct MsgPort *ServicePort;                /* Message port for service task                         */
  59     struct MinList TaskStorageSlots;            /* List of free slots, always one element with next slot */
  60     struct List AllocatorCtxList;               /* List of allocator contexts for system mem headers    */
  61     struct Exec_PlatformData PlatformData;      /* Platform-specific stuff                               */
  62     struct SupervisorAlertTask SAT;
  63     char   AlertBuffer[ALERT_BUFFER_SIZE];      /* Buffer for alert text                                 */
  64 };
  65
  66 #define PrivExecBase(base) ((struct IntExecBase *)base)
  67 #define PD(base)   PrivExecBase(base)->PlatformData
  68 #define KernelBase PrivExecBase(SysBase)->KernelBase
  69 #define DebugBase  PrivExecBase(SysBase)->DebugBase
  70
  71 /* IntFlags */
  72 #define EXECF_MungWall   0x0001 /* This flag can't be changed at runtime */
  73 #define EXECF_StackSnoop 0x0002
  74
  75 /* Additional private task states */
  76 #define TS_SERVICE 128
  77
  78 /* Puddle size, in slots. Must be at least 1 */
  79 #define TASKSTORAGEPUDDLE 16
  80
  81 #if UseLVOs
  82 extern void __AROS_InitExecBase (void);
  83 #endif
  84
  85 struct ExecBase *PrepareExecBase(struct MemHeader *mh, struct TagItem *tags);
  86 void InitExecBase(struct ExecBase *SysBase, ULONG negsize, struct TagItem *msg);
  87 struct ExecBase *PrepareExecBaseMove(struct ExecBase *oldSysBase);
  88 BOOL Exec_PreparePlatform(struct Exec_PlatformData *pdata, struct TagItem *tags);
  89
  90 void InitKickTags(struct ExecBase *SysBase);
  91 UWORD GetSysBaseChkSum(struct ExecBase *sysbase);
  92 void SetSysBaseChkSum(void);
  93 BOOL IsSysBaseValid(struct ExecBase *sysbase);
  94
  95 IPTR cpu_SuperState();
  96
  97 void ServiceTask(struct ExecBase *SysBase);
  98
  99 #endif /* __EXEC_INTERN_H__ */