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 /* 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                  TaskSpinningLock;
  52     struct List                 TaskSpinning;                   /* Tasks that are spinning waiting for a lock                   */
  53     spinlock_t                  TaskReadySpinLock;
  54     spinlock_t                  TaskWaitSpinLock;
  55 #endif
  56     APTR                        KernelBase;                     /* kernel.resource base                                         */
  57     struct Library              *DebugBase;                     /* debug.library base                                           */
  58     ULONG                       PageSize;                       /* Memory page size                                             */
  59     ULONG                       IntFlags;                       /* Internal flags, see below                                    */
  60     struct MsgPort              *ServicePort;                   /* Message port for service task                                */
  61     struct MinList              TaskStorageSlots;               /* List of free slots, always one element with next slot        */
  62     struct List                 AllocatorCtxList;               /* List of allocator contexts for system mem headers            */
  63     struct Exec_PlatformData    PlatformData;                   /* Platform-specific stuff                                      */
  64     struct SupervisorAlertTask  SAT;
  65     char                        AlertBuffer[ALERT_BUFFER_SIZE]; /* Buffer for alert text                                        */
  66 };
  67
  68 #define PrivExecBase(base)      ((struct IntExecBase *)base)
  69 #define PD(base)                PrivExecBase(base)->PlatformData
  70 #define KernelBase              PrivExecBase(SysBase)->KernelBase
  71 #define DebugBase               PrivExecBase(SysBase)->DebugBase
  72
  73 /* IntFlags */
  74 #define EXECF_MungWall          0x0001                          /* This flag can't be changed at runtime                        */
  75 #define EXECF_StackSnoop        0x0002
  76
  77 /* Additional private task states */
  78 #define TS_SERVICE              128
  79
  80 /* Puddle size, in slots. Must be at least 1 */
  81 #define TASKSTORAGEPUDDLE       16
  82
  83 #if UseLVOs
  84 extern void __AROS_InitExecBase (void);
  85 #endif
  86
  87 struct ExecBase *PrepareExecBase(struct MemHeader *mh, struct TagItem *tags);
  88 void InitExecBase(struct ExecBase *SysBase, ULONG negsize, struct TagItem *msg);
  89 struct ExecBase *PrepareExecBaseMove(struct ExecBase *oldSysBase);
  90 BOOL Exec_PreparePlatform(struct Exec_PlatformData *pdata, struct TagItem *tags);
  91
  92 void InitKickTags(struct ExecBase *SysBase);
  93 UWORD GetSysBaseChkSum(struct ExecBase *sysbase);
  94 void SetSysBaseChkSum(void);
  95 BOOL IsSysBaseValid(struct ExecBase *sysbase);
  96
  97 IPTR cpu_SuperState();
  98
  99 void ServiceTask(struct ExecBase *SysBase);
 100
 101 #endif /* __EXEC_INTERN_H__ */