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| 4075 | Serge | 1 | /************************************************************************** |
| 2 | * |
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| 3 | * Copyright © 2011 VMware, Inc., Palo Alto, CA., USA |
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| 4 | * All Rights Reserved. |
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| 5 | * |
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| 6 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 7 | * copy of this software and associated documentation files (the |
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| 8 | * "Software"), to deal in the Software without restriction, including |
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| 9 | * without limitation the rights to use, copy, modify, merge, publish, |
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| 10 | * distribute, sub license, and/or sell copies of the Software, and to |
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| 11 | * permit persons to whom the Software is furnished to do so, subject to |
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| 12 | * the following conditions: |
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| 13 | * |
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| 14 | * The above copyright notice and this permission notice (including the |
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| 15 | * next paragraph) shall be included in all copies or substantial portions |
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| 16 | * of the Software. |
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| 17 | * |
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| 18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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| 19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 20 | * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL |
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| 21 | * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, |
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| 22 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
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| 23 | * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE |
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| 24 | * USE OR OTHER DEALINGS IN THE SOFTWARE. |
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| 25 | * |
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| 26 | **************************************************************************/ |
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| 27 | |||
| 28 | #ifndef _VMWGFX_FENCE_H_ |
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| 29 | |||
| 30 | #define VMW_FENCE_WAIT_TIMEOUT (5*HZ) |
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| 31 | |||
| 32 | struct vmw_private; |
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| 33 | |||
| 34 | struct vmw_fence_manager; |
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| 35 | |||
| 36 | /** |
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| 37 | * |
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| 38 | * |
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| 39 | */ |
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| 40 | enum vmw_action_type { |
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| 41 | VMW_ACTION_EVENT = 0, |
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| 42 | VMW_ACTION_MAX |
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| 43 | }; |
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| 44 | |||
| 45 | struct vmw_fence_action { |
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| 46 | struct list_head head; |
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| 47 | enum vmw_action_type type; |
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| 48 | void (*seq_passed) (struct vmw_fence_action *action); |
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| 49 | void (*cleanup) (struct vmw_fence_action *action); |
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| 50 | }; |
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| 51 | |||
| 52 | struct vmw_fence_obj { |
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| 53 | struct kref kref; |
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| 54 | u32 seqno; |
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| 55 | |||
| 56 | struct vmw_fence_manager *fman; |
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| 57 | struct list_head head; |
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| 58 | uint32_t signaled; |
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| 59 | uint32_t signal_mask; |
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| 60 | struct list_head seq_passed_actions; |
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| 61 | void (*destroy)(struct vmw_fence_obj *fence); |
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| 62 | wait_queue_head_t queue; |
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| 63 | }; |
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| 64 | |||
| 65 | extern struct vmw_fence_manager * |
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| 66 | vmw_fence_manager_init(struct vmw_private *dev_priv); |
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| 67 | |||
| 68 | extern void vmw_fence_manager_takedown(struct vmw_fence_manager *fman); |
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| 69 | |||
| 70 | extern void vmw_fence_obj_unreference(struct vmw_fence_obj **fence_p); |
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| 71 | |||
| 72 | extern struct vmw_fence_obj * |
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| 73 | vmw_fence_obj_reference(struct vmw_fence_obj *fence); |
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| 74 | |||
| 75 | extern void vmw_fences_update(struct vmw_fence_manager *fman); |
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| 76 | |||
| 77 | extern bool vmw_fence_obj_signaled(struct vmw_fence_obj *fence, |
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| 78 | uint32_t flags); |
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| 79 | |||
| 80 | extern int vmw_fence_obj_wait(struct vmw_fence_obj *fence, uint32_t flags, |
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| 81 | bool lazy, |
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| 82 | bool interruptible, unsigned long timeout); |
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| 83 | |||
| 84 | extern void vmw_fence_obj_flush(struct vmw_fence_obj *fence); |
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| 85 | |||
| 86 | extern int vmw_fence_create(struct vmw_fence_manager *fman, |
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| 87 | uint32_t seqno, |
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| 88 | uint32_t mask, |
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| 89 | struct vmw_fence_obj **p_fence); |
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| 90 | |||
| 91 | extern int vmw_user_fence_create(struct drm_file *file_priv, |
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| 92 | struct vmw_fence_manager *fman, |
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| 93 | uint32_t sequence, |
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| 94 | uint32_t mask, |
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| 95 | struct vmw_fence_obj **p_fence, |
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| 96 | uint32_t *p_handle); |
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| 97 | |||
| 98 | extern void vmw_fence_fifo_up(struct vmw_fence_manager *fman); |
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| 99 | |||
| 100 | extern void vmw_fence_fifo_down(struct vmw_fence_manager *fman); |
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| 101 | |||
| 102 | extern int vmw_fence_obj_wait_ioctl(struct drm_device *dev, void *data, |
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| 103 | struct drm_file *file_priv); |
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| 104 | |||
| 105 | extern int vmw_fence_obj_signaled_ioctl(struct drm_device *dev, void *data, |
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| 106 | struct drm_file *file_priv); |
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| 107 | |||
| 108 | extern int vmw_fence_obj_unref_ioctl(struct drm_device *dev, void *data, |
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| 109 | struct drm_file *file_priv); |
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| 110 | extern int vmw_fence_event_ioctl(struct drm_device *dev, void *data, |
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| 111 | struct drm_file *file_priv); |
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| 112 | extern void vmw_event_fence_fpriv_gone(struct vmw_fence_manager *fman, |
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| 113 | struct list_head *event_list); |
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| 114 | /* |
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| 115 | extern int vmw_event_fence_action_queue(struct drm_file *filee_priv, |
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| 116 | struct vmw_fence_obj *fence, |
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| 117 | struct drm_pending_event *event, |
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| 118 | uint32_t *tv_sec, |
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| 119 | uint32_t *tv_usec, |
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| 120 | bool interruptible); |
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| 121 | */ |
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| 122 | |||
| 123 | #endif /* _VMWGFX_FENCE_H_ */ |