drivers/gpu/drm/i915/selftests/lib_sw_fence.h

   1 /*
   2  * lib_sw_fence.h - library routines for testing N:M synchronisation points
   3  *
   4  * Copyright (C) 2017 Intel Corporation
   5  *
   6  * This file is released under the GPLv2.
   7  *
   8  */
   9
  10 #ifndef _LIB_SW_FENCE_H_
  11 #define _LIB_SW_FENCE_H_
  12
  13 #include <linux/timer.h>
  14
  15 #include "../i915_sw_fence.h"
  16
  17 #ifdef CONFIG_LOCKDEP
  18 #define onstack_fence_init(fence)                               \
  19 do {                                                            \
  20         static struct lock_class_key __key;                     \
  21                                                                 \
  22         __onstack_fence_init((fence), #fence, &__key);  \
  23 } while (0)
  24 #else
  25 #define onstack_fence_init(fence)                               \
  26         __onstack_fence_init((fence), NULL, NULL)
  27 #endif
  28
  29 void __onstack_fence_init(struct i915_sw_fence *fence,
  30                           const char *name,
  31                           struct lock_class_key *key);
  32 void onstack_fence_fini(struct i915_sw_fence *fence);
  33
  34 struct timed_fence {
  35         struct i915_sw_fence fence;
  36         struct timer_list timer;
  37 };
  38
  39 void timed_fence_init(struct timed_fence *tf, unsigned long expires);
  40 void timed_fence_fini(struct timed_fence *tf);
  41
  42 #endif /* _LIB_SW_FENCE_H_ */