linux_module/lockcheck.h

   1 #ifndef _lockcheck
   2 #define _lockcheck
   3
   4
   5 #ifdef V3_CONFIG_DEBUG_LOCKS
   6
   7 // Maxmimum number of locks to handle
   8 #define NUM_LOCKS        1024
   9 // Maximum number of locks that can be simultaneously
  10 // held on each CPU
  11 #define LOCK_STACK_DEPTH 16
  12
  13 //
  14 // The following macros are used
  15 // in the stub functions to call back to the lock
  16 // checker - if lock checking is not enabled, these
  17 // turn into nothing
  18 //
  19 #define LOCKCHECK_INIT() palacios_lockcheck_init()
  20 #define LOCKCHECK_ALLOC(lock) palacios_lockcheck_alloc(lock)
  21 #define LOCKCHECK_FREE(lock)  palacios_lockcheck_free(lock)
  22 #define LOCKCHECK_LOCK_PRE(lock)
  23 #define LOCKCHECK_LOCK_POST(lock)  palacios_lockcheck_lock(lock)
  24 #define LOCKCHECK_UNLOCK_PRE(lock) palacios_lockcheck_unlock(lock)
  25 #define LOCKCHECK_UNLOCK_POST(lock)
  26 #define LOCKCHECK_LOCK_IRQSAVE_PRE(lock, flags)
  27 #define LOCKCHECK_LOCK_IRQSAVE_POST(lock, flags)  palacios_lockcheck_lock_irqsave(lock,flags)
  28 #define LOCKCHECK_UNLOCK_IRQRESTORE_PRE(lock, flags) palacios_lockcheck_unlock_irqrestore_pre(lock,flags)
  29 #define LOCKCHECK_UNLOCK_IRQRESTORE_POST(lock, flags) palacios_lockcheck_unlock_irqrestore_post(lock,flags)
  30 #define LOCKCHECK_DEINIT() palacios_lockcheck_deinit()
  31
  32 void palacios_lockcheck_init(void);
  33 void palacios_lockcheck_alloc(void *lock);
  34 void palacios_lockcheck_free(void *lock);
  35 void palacios_lockcheck_lock(void *lock);
  36 void palacios_lockcheck_unlock(void *lock);
  37 void palacios_lockcheck_lock_irqsave(void *lock,unsigned long flags);
  38 void palacios_lockcheck_unlock_irqrestore_pre(void *lock,unsigned long flags);
  39 void palacios_lockcheck_unlock_irqrestore_post(void *lock,unsigned long flags);
  40 void palacios_lockcheck_deinit(void);
  41
  42 #else
  43
  44 //
  45 // The following is what happens when lock checking is not on
  46 //
  47 #define LOCKCHECK_INIT()
  48 #define LOCKCHECK_ALLOC(lock)
  49 #define LOCKCHECK_FREE(lock)
  50 #define LOCKCHECK_LOCK_PRE(lock)
  51 #define LOCKCHECK_LOCK_POST(lock)
  52 #define LOCKCHECK_UNLOCK_PRE(lock)
  53 #define LOCKCHECK_UNLOCK_POST(lock)
  54 #define LOCKCHECK_LOCK_IRQSAVE_PRE(lock, flags)
  55 #define LOCKCHECK_LOCK_IRQSAVE_POST(lock, flags)
  56 #define LOCKCHECK_UNLOCK_IRQRESTORE_PRE(lock, flags)
  57 #define LOCKCHECK_UNLOCK_IRQRESTORE_POST(lock, flags)
  58 #define LOCKCHECK_DEINIT()
  59
  60 #endif
  61
  62
  63 #endif