rom/exec/exec_intern.h

   1 /*
   2     Copyright © 1995-2015, 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 /*
  28    Internals of this structure are host-specific, we don't know them here
  29  */
  30 struct HostInterface;
  31
  32 struct SupervisorAlertTask
  33 {
  34     struct Task                 *sat_Task;                      /* Task that tries to display supervisor-level alerts           */
  35     BOOL                        sat_IsAvailable;
  36     IPTR                        sat_Params[2];
  37 };
  38
  39 /*
  40    AROS specific private portion of ExecBase
  41  */
  42 struct IntExecBase
  43 {
  44     struct ExecBase             pub;
  45     struct List                 ResetHandlers;                  /* Reset handlers list                                          */
  46     struct Interrupt            ColdResetHandler;               /* Reset handler that causes cold reboot                        */
  47     struct Interrupt            WarmResetHandler;               /* Reset handler that causes warm reboot                        */
  48     struct Interrupt            ShutdownHandler;                /* Reset handler that halts CPU                                 */
  49     struct MinList              AllocMemList;                   /* Mungwall allocations list                                    */
  50     struct SignalSemaphore      MemListSem;                     /* Memory list protection semaphore                             */
  51     struct SignalSemaphore      LowMemSem;                      /* Lock for single-threading low memory handlers                */
  52 #if defined(__AROSEXEC_SMP__)
  53     spinlock_t                  TaskRunningSpinLock;
  54     struct List                 TaskRunning;                    /* Tasks that are running on CPUs                               */
  55     spinlock_t                  TaskSpinningLock;
  56     struct List                 TaskSpinning;                   /* Tasks that are spinning waiting for a lock                   */
  57     spinlock_t                  TaskReadySpinLock;
  58     spinlock_t                  TaskWaitSpinLock;
  59 #endif
  60     APTR                        KernelBase;                     /* kernel.resource base                                         */
  61     struct Library              *DebugBase;                     /* debug.library base                                           */
  62     ULONG                       PageSize;                       /* Memory page size                                             */
  63     ULONG                       IntFlags;                       /* Internal flags, see below                                    */
  64     struct MsgPort              *ServicePort;                   /* Message port for service task                                */
  65     struct MinList              TaskStorageSlots;               /* List of free slots, always one element with next slot        */
  66     struct List                 AllocatorCtxList;               /* List of allocator contexts for system mem headers            */
  67     struct Exec_PlatformData    PlatformData;                   /* Platform-specific stuff                                      */
  68     struct SupervisorAlertTask  SAT;
  69     char                        AlertBuffer[ALERT_BUFFER_SIZE]; /* Buffer for alert text                                        */
  70 };
  71
  72 #define PrivExecBase(base)      ((struct IntExecBase *)base)
  73 #define PD(base)                PrivExecBase(base)->PlatformData
  74 #define KernelBase              PrivExecBase(SysBase)->KernelBase
  75 #define DebugBase               PrivExecBase(SysBase)->DebugBase
  76
  77 /* IntFlags */
  78 #define EXECF_MungWall          0x0001                          /* This flag can't be changed at runtime                        */
  79 #define EXECF_StackSnoop        0x0002
  80
  81 /* Additional private task states */
  82 #define TS_SERVICE              128
  83
  84 /* Puddle size, in slots. Must be at least 1 */
  85 #define TASKSTORAGEPUDDLE       16
  86
  87 #if UseLVOs
  88 extern void __AROS_InitExecBase (void);
  89 #endif
  90
  91 struct ExecBase *PrepareExecBase(struct MemHeader *mh, struct TagItem *tags);
  92 void InitExecBase(struct ExecBase *SysBase, ULONG negsize, struct TagItem *msg);
  93 struct ExecBase *PrepareExecBaseMove(struct ExecBase *oldSysBase);
  94 BOOL Exec_PreparePlatform(struct Exec_PlatformData *pdata, struct TagItem *tags);
  95
  96 void InitKickTags(struct ExecBase *SysBase);
  97 UWORD GetSysBaseChkSum(struct ExecBase *sysbase);
  98 void SetSysBaseChkSum(void);
  99 BOOL IsSysBaseValid(struct ExecBase *sysbase);
 100
 101 IPTR cpu_SuperState();
 102
 103 void ServiceTask(struct ExecBase *SysBase);
 104
 105 #endif /* __EXEC_INTERN_H__ */