Home | History | Annotate | Line # | Download | only in vmwgfx
vmwgfx_fence.h revision 1.1.1.1.38.1 
      1 /*	$NetBSD: vmwgfx_fence.h,v 1.1.1.1.38.1 2019/06/10 22:08:29 christos Exp $	*/
      2 
      3 /**************************************************************************
      4  *
      5  * Copyright  2011-2012 VMware, Inc., Palo Alto, CA., USA
      6  * All Rights Reserved.
      7  *
      8  * Permission is hereby granted, free of charge, to any person obtaining a
      9  * copy of this software and associated documentation files (the
     10  * "Software"), to deal in the Software without restriction, including
     11  * without limitation the rights to use, copy, modify, merge, publish,
     12  * distribute, sub license, and/or sell copies of the Software, and to
     13  * permit persons to whom the Software is furnished to do so, subject to
     14  * the following conditions:
     15  *
     16  * The above copyright notice and this permission notice (including the
     17  * next paragraph) shall be included in all copies or substantial portions
     18  * of the Software.
     19  *
     20  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     21  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     22  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
     23  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
     24  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
     25  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
     26  * USE OR OTHER DEALINGS IN THE SOFTWARE.
     27  *
     28  **************************************************************************/
     29 
     30 #ifndef _VMWGFX_FENCE_H_
     31 
     32 #include <linux/fence.h>
     33 
     34 #define VMW_FENCE_WAIT_TIMEOUT (5*HZ)
     35 
     36 struct vmw_private;
     37 
     38 struct vmw_fence_manager;
     39 
     40 /**
     41  *
     42  *
     43  */
     44 enum vmw_action_type {
     45 	VMW_ACTION_EVENT = 0,
     46 	VMW_ACTION_MAX
     47 };
     48 
     49 struct vmw_fence_action {
     50 	struct list_head head;
     51 	enum vmw_action_type type;
     52 	void (*seq_passed) (struct vmw_fence_action *action);
     53 	void (*cleanup) (struct vmw_fence_action *action);
     54 };
     55 
     56 struct vmw_fence_obj {
     57 	struct fence base;
     58 
     59 	struct list_head head;
     60 	struct list_head seq_passed_actions;
     61 	void (*destroy)(struct vmw_fence_obj *fence);
     62 };
     63 
     64 extern struct vmw_fence_manager *
     65 vmw_fence_manager_init(struct vmw_private *dev_priv);
     66 
     67 extern void vmw_fence_manager_takedown(struct vmw_fence_manager *fman);
     68 
     69 static inline void
     70 vmw_fence_obj_unreference(struct vmw_fence_obj **fence_p)
     71 {
     72 	struct vmw_fence_obj *fence = *fence_p;
     73 
     74 	*fence_p = NULL;
     75 	if (fence)
     76 		fence_put(&fence->base);
     77 }
     78 
     79 static inline struct vmw_fence_obj *
     80 vmw_fence_obj_reference(struct vmw_fence_obj *fence)
     81 {
     82 	if (fence)
     83 		fence_get(&fence->base);
     84 	return fence;
     85 }
     86 
     87 extern void vmw_fences_update(struct vmw_fence_manager *fman);
     88 
     89 extern bool vmw_fence_obj_signaled(struct vmw_fence_obj *fence);
     90 
     91 extern int vmw_fence_obj_wait(struct vmw_fence_obj *fence,
     92 			      bool lazy,
     93 			      bool interruptible, unsigned long timeout);
     94 
     95 extern void vmw_fence_obj_flush(struct vmw_fence_obj *fence);
     96 
     97 extern int vmw_fence_create(struct vmw_fence_manager *fman,
     98 			    uint32_t seqno,
     99 			    struct vmw_fence_obj **p_fence);
    100 
    101 extern int vmw_user_fence_create(struct drm_file *file_priv,
    102 				 struct vmw_fence_manager *fman,
    103 				 uint32_t sequence,
    104 				 struct vmw_fence_obj **p_fence,
    105 				 uint32_t *p_handle);
    106 
    107 extern void vmw_fence_fifo_up(struct vmw_fence_manager *fman);
    108 
    109 extern void vmw_fence_fifo_down(struct vmw_fence_manager *fman);
    110 
    111 extern int vmw_fence_obj_wait_ioctl(struct drm_device *dev, void *data,
    112 				    struct drm_file *file_priv);
    113 
    114 extern int vmw_fence_obj_signaled_ioctl(struct drm_device *dev, void *data,
    115 					struct drm_file *file_priv);
    116 
    117 extern int vmw_fence_obj_unref_ioctl(struct drm_device *dev, void *data,
    118 				     struct drm_file *file_priv);
    119 extern int vmw_fence_event_ioctl(struct drm_device *dev, void *data,
    120 				 struct drm_file *file_priv);
    121 extern void vmw_event_fence_fpriv_gone(struct vmw_fence_manager *fman,
    122 				       struct list_head *event_list);
    123 extern int vmw_event_fence_action_queue(struct drm_file *filee_priv,
    124 					struct vmw_fence_obj *fence,
    125 					struct drm_pending_event *event,
    126 					uint32_t *tv_sec,
    127 					uint32_t *tv_usec,
    128 					bool interruptible);
    129 #endif /* _VMWGFX_FENCE_H_ */
    130