cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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lib_sw_fence.h (1061B)

      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_ */