LXR linux/drivers/gpu/drm/i915/selftests/lib_sw

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 * lib_sw_fence.h - library routines for testing N:M synchronisation points
   4 *
   5 * Copyright (C) 2017 Intel Corporation
   6 */
   7
   8#ifndef _LIB_SW_FENCE_H_
   9#define _LIB_SW_FENCE_H_
  10
  11#include <linux/timer.h>
  12
  13#include "../i915_sw_fence.h"
  14
  15#ifdef CONFIG_LOCKDEP
  16#define onstack_fence_init(fence)                               \
  17do {                                                            \
  18        static struct lock_class_key __key;                     \
  19                                                                \
  20        __onstack_fence_init((fence), #fence, &__key);  \
  21} while (0)
  22#else
  23#define onstack_fence_init(fence)                               \
  24        __onstack_fence_init((fence), NULL, NULL)
  25#endif
  26
  27void __onstack_fence_init(struct i915_sw_fence *fence,
  28                          const char *name,
  29                          struct lock_class_key *key);
  30void onstack_fence_fini(struct i915_sw_fence *fence);
  31
  32struct timed_fence {
  33        struct i915_sw_fence fence;
  34        struct timer_list timer;
  35};
  36
  37void timed_fence_init(struct timed_fence *tf, unsigned long expires);
  38void timed_fence_fini(struct timed_fence *tf);
  39
  40struct i915_sw_fence *heap_fence_create(gfp_t gfp);
  41void heap_fence_put(struct i915_sw_fence *fence);
  42
  43#endif /* _LIB_SW_FENCE_H_ */
  44