view src/gpf/inc/frm_types.h @ 220:0ed36de51973

ABB semaphore protection overhaul The ABB semaphone protection logic that came with TCS211 from TI was broken in several ways: * Some semaphore-protected functions were called from Application_Initialize() context. NU_Obtain_Semaphore() called with NU_SUSPEND fails with NU_INVALID_SUSPEND in this context, but the return value wasn't checked, and NU_Release_Semaphore() would be called unconditionally at the end. The latter call would increment the semaphore count past 1, making the semaphore no longer binary and thus no longer effective for resource protection. The fix is to check the return value from NU_Obtain_Semaphore() and skip the NU_Release_Semaphore() call if the semaphore wasn't properly obtained. * Some SPI hardware manipulation was being done before entering the semaphore- protected critical section. The fix is to reorder the code: first obtain the semaphore, then do everything else. * In the corner case of L1/DSP recovery, l1_abb_power_on() would call some non-semaphore-protected ABB & SPI init functions. The fix is to skip those calls in the case of recovery. * A few additional corner cases existed, all of which are fixed by making ABB semaphore protection 100% consistent for all ABB functions and code paths. There is still one remaining problem of priority inversion: suppose a low- priority task calls an ABB function, and some medium-priority task just happens to preempt right in the middle of that semaphore-protected ABB operation. Then the high-priority SPI task is locked out for a non-deterministic time until that medium-priority task finishes its work and goes back to sleep. This priority inversion problem remains outstanding for now.
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 26 Apr 2021 20:55:25 +0000
parents 4e78acac3d88
children
line wrap: on
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/* 
+------------------------------------------------------------------------------
|  File:       frm_types.h
+------------------------------------------------------------------------------
|  Copyright 2002 Texas Instruments Berlin, AG 
|                 All rights reserved. 
| 
|                 This file is confidential and a trade secret of Texas 
|                 Instruments Berlin, AG 
|                 The receipt of or possession of this file does not convey 
|                 any rights to reproduce or disclose its contents or to 
|                 manufacture, use, or sell anything it may describe, in 
|                 whole, or in part, without the specific written consent of 
|                 Texas Instruments Berlin, AG. 
+----------------------------------------------------------------------------- 
|  Purpose :  Definitions for the Frame
+----------------------------------------------------------------------------- 
*/ 

#ifndef FRM_TYPES_H
#define FRM_TYPES_H

/*==== INCLUDES =============================================================*/

#include "pei.h"
#include "gdi.h"

/*==== CONSTANTS ============================================================*/

/*==== TYPES ================================================================*/
 
/*
 * Type Definitions for Frame Management 
 */

typedef struct                                         
{
  char  	   Name[RESOURCE_NAMELEN];    /* name of task */
  T_PEI_FUNC const *PeiTable;		/* addresses of pei_functions */
  USHORT	   NumOfTimers;		    /* timers are created in pf_TaskEntry() */
  USHORT	   QueueEntries;		  /* queue is created in pf_TaskEntry() */
  T_HANDLE * FirstTimerEntry;   /* first entry in timer handle array */
  T_HANDLE   MemPoolHandle;		  /* handle for memory pool access */
  T_HANDLE   QueueHandle;		    /* own queue handle */
  T_HANDLE   TaskHandle;		    /* own task handle */
  U32        Flags;	            /* active/passive */
} T_FRM_TASK_TABLE_ENTRY;

typedef struct
{
   ULONG 	   TimerValue;			  /* value of timer */
   ULONG 	   TimerMode;			    /* mode of timer */
} T_FRM_TIMCFG_TABLE_ENTRY;

typedef struct                                         
{
  char          *Name;               /* name of the driver */
  T_HANDLE      ProcessHandle;       /* handle of the process to be notified */
  USHORT        UpperDrv;            /* handle of driver in the upper layer */
  USHORT        LowerDrv;            /* handle of driver in the lower layer */
  USHORT        SignalTo;            /* handle of process to be notified at Callback */
  T_DRV_EXPORT const *DrvInfo;
} T_DRV_TABLE_ENTRY;

typedef struct
{
  unsigned int part_num;
  unsigned int part_size;
  void * mem;
} T_FRM_PARTITION_POOL_CONFIG;

typedef struct
{
  char * name;
  const T_FRM_PARTITION_POOL_CONFIG * grp_config;
} T_FRM_PARTITION_GROUP_CONFIG;

typedef struct                                         
{
  char *Name;
  ULONG  Size;		
  char  *PoolAddress;
} T_MEMORY_POOL_CONFIG;

typedef SHORT T_PEI_CREATE ( T_PEI_INFO const **Info );

typedef struct
{
  T_PEI_CREATE *PeiCreate;
  char         *Name;
  int          Priority;
} T_COMPONENT_ADDRESS;


#ifdef MEMORY_SUPERVISION

typedef struct                                         
{
  ULONG 	Total;		             /* total number of elements */
  ULONG 	Current;		           /* current number of elements */
  ULONG 	Maximum;	             /* maximum number of elements */
  ULONG 	MaxByteMemory;         /* number of allocated bytes at maximum of elements */
  ULONG 	MaxPartMemory;         /* number of allocated partitions at maximum of elements */
} T_COUNTER;

typedef struct                                         
{
  ULONG 	UsedSize;		           /* size of stored primitive */
  ULONG   RequestedSize;         /* requested size during allocation */
  ULONG   time;                  /* time when partition is touched */
  USHORT  Status;   	           /* status of partition */
  T_HANDLE owner;
 	ULONG   PrimOPC;	             /* opc of primitive that uses this partition */
  void    *ptr;
  const char    *Userfile;	     /* file that accesses partition */
  int    Line;		               /* line where partition is accessed */
} T_PARTITION_STATUS; 

typedef struct                                         
{
  ULONG   PrimOPC;	             /* opc of primitive that does not fit in partition */
  const char    *Userfile;	     /* file that access partition */
  int  Line;		                 /* line where partition is accessed */
} T_OVERSIZE_STATUS;

typedef struct                                         
{
  T_PARTITION_STATUS	*PartitionStatus;
  T_OVERSIZE_STATUS  	*PartitionOversize;
  T_COUNTER	          *PartitionCounter;
#ifdef OPTIMIZE_POOL
  T_COUNTER          	*ByteCounter;
  T_COUNTER          	*RangeCounter;
#endif /* OPTIMIZE_POOL */
} T_PARTITION_POOL_STATUS;

#endif

#endif