vmwgfx_fence.h 4.0 KB

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  1. /* SPDX-License-Identifier: GPL-2.0 OR MIT */
  2. /**************************************************************************
  3. *
  4. * Copyright 2011-2012 VMware, Inc., Palo Alto, CA., USA
  5. *
  6. * Permission is hereby granted, free of charge, to any person obtaining a
  7. * copy of this software and associated documentation files (the
  8. * "Software"), to deal in the Software without restriction, including
  9. * without limitation the rights to use, copy, modify, merge, publish,
  10. * distribute, sub license, and/or sell copies of the Software, and to
  11. * permit persons to whom the Software is furnished to do so, subject to
  12. * the following conditions:
  13. *
  14. * The above copyright notice and this permission notice (including the
  15. * next paragraph) shall be included in all copies or substantial portions
  16. * of the Software.
  17. *
  18. * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19. * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20. * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  21. * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
  22. * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  23. * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  24. * USE OR OTHER DEALINGS IN THE SOFTWARE.
  25. *
  26. **************************************************************************/
  27. #ifndef _VMWGFX_FENCE_H_
  28. #include <linux/dma-fence.h>
  29. #include <linux/dma-fence-array.h>
  30. #define VMW_FENCE_WAIT_TIMEOUT (5*HZ)
  31. struct drm_device;
  32. struct drm_file;
  33. struct drm_pending_event;
  34. struct vmw_private;
  35. struct vmw_fence_manager;
  36. /**
  37. *
  38. *
  39. */
  40. enum vmw_action_type {
  41. VMW_ACTION_EVENT = 0,
  42. VMW_ACTION_MAX
  43. };
  44. struct vmw_fence_action {
  45. struct list_head head;
  46. enum vmw_action_type type;
  47. void (*seq_passed) (struct vmw_fence_action *action);
  48. void (*cleanup) (struct vmw_fence_action *action);
  49. };
  50. struct vmw_fence_obj {
  51. struct dma_fence base;
  52. struct list_head head;
  53. struct list_head seq_passed_actions;
  54. void (*destroy)(struct vmw_fence_obj *fence);
  55. };
  56. extern struct vmw_fence_manager *
  57. vmw_fence_manager_init(struct vmw_private *dev_priv);
  58. extern void vmw_fence_manager_takedown(struct vmw_fence_manager *fman);
  59. static inline void
  60. vmw_fence_obj_unreference(struct vmw_fence_obj **fence_p)
  61. {
  62. struct vmw_fence_obj *fence = *fence_p;
  63. *fence_p = NULL;
  64. if (fence)
  65. dma_fence_put(&fence->base);
  66. }
  67. static inline struct vmw_fence_obj *
  68. vmw_fence_obj_reference(struct vmw_fence_obj *fence)
  69. {
  70. if (fence)
  71. dma_fence_get(&fence->base);
  72. return fence;
  73. }
  74. extern void vmw_fences_update(struct vmw_fence_manager *fman);
  75. extern bool vmw_fence_obj_signaled(struct vmw_fence_obj *fence);
  76. extern int vmw_fence_obj_wait(struct vmw_fence_obj *fence,
  77. bool lazy,
  78. bool interruptible, unsigned long timeout);
  79. extern void vmw_fence_obj_flush(struct vmw_fence_obj *fence);
  80. extern int vmw_fence_create(struct vmw_fence_manager *fman,
  81. uint32_t seqno,
  82. struct vmw_fence_obj **p_fence);
  83. extern int vmw_user_fence_create(struct drm_file *file_priv,
  84. struct vmw_fence_manager *fman,
  85. uint32_t sequence,
  86. struct vmw_fence_obj **p_fence,
  87. uint32_t *p_handle);
  88. extern int vmw_wait_dma_fence(struct vmw_fence_manager *fman,
  89. struct dma_fence *fence);
  90. extern void vmw_fence_fifo_up(struct vmw_fence_manager *fman);
  91. extern void vmw_fence_fifo_down(struct vmw_fence_manager *fman);
  92. extern int vmw_fence_obj_wait_ioctl(struct drm_device *dev, void *data,
  93. struct drm_file *file_priv);
  94. extern int vmw_fence_obj_signaled_ioctl(struct drm_device *dev, void *data,
  95. struct drm_file *file_priv);
  96. extern int vmw_fence_obj_unref_ioctl(struct drm_device *dev, void *data,
  97. struct drm_file *file_priv);
  98. extern int vmw_fence_event_ioctl(struct drm_device *dev, void *data,
  99. struct drm_file *file_priv);
  100. extern int vmw_event_fence_action_queue(struct drm_file *filee_priv,
  101. struct vmw_fence_obj *fence,
  102. struct drm_pending_event *event,
  103. uint32_t *tv_sec,
  104. uint32_t *tv_usec,
  105. bool interruptible);
  106. #endif /* _VMWGFX_FENCE_H_ */