diff options
Diffstat (limited to 'kernel/drivers/gpu/drm/vmwgfx/vmwgfx_fence.h')
| -rw-r--r-- | kernel/drivers/gpu/drm/vmwgfx/vmwgfx_fence.h | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/kernel/drivers/gpu/drm/vmwgfx/vmwgfx_fence.h b/kernel/drivers/gpu/drm/vmwgfx/vmwgfx_fence.h new file mode 100644 index 000000000..26a4add39 --- /dev/null +++ b/kernel/drivers/gpu/drm/vmwgfx/vmwgfx_fence.h @@ -0,0 +1,127 @@ +/************************************************************************** + * + * Copyright © 2011 VMware, Inc., Palo Alto, CA., USA + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE + * USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#ifndef _VMWGFX_FENCE_H_ + +#include <linux/fence.h> + +#define VMW_FENCE_WAIT_TIMEOUT (5*HZ) + +struct vmw_private; + +struct vmw_fence_manager; + +/** + * + * + */ +enum vmw_action_type { + VMW_ACTION_EVENT = 0, + VMW_ACTION_MAX +}; + +struct vmw_fence_action { + struct list_head head; + enum vmw_action_type type; + void (*seq_passed) (struct vmw_fence_action *action); + void (*cleanup) (struct vmw_fence_action *action); +}; + +struct vmw_fence_obj { + struct fence base; + + struct list_head head; + struct list_head seq_passed_actions; + void (*destroy)(struct vmw_fence_obj *fence); +}; + +extern struct vmw_fence_manager * +vmw_fence_manager_init(struct vmw_private *dev_priv); + +extern void vmw_fence_manager_takedown(struct vmw_fence_manager *fman); + +static inline void +vmw_fence_obj_unreference(struct vmw_fence_obj **fence_p) +{ + struct vmw_fence_obj *fence = *fence_p; + + *fence_p = NULL; + if (fence) + fence_put(&fence->base); +} + +static inline struct vmw_fence_obj * +vmw_fence_obj_reference(struct vmw_fence_obj *fence) +{ + if (fence) + fence_get(&fence->base); + return fence; +} + +extern void vmw_fences_update(struct vmw_fence_manager *fman); + +extern bool vmw_fence_obj_signaled(struct vmw_fence_obj *fence); + +extern int vmw_fence_obj_wait(struct vmw_fence_obj *fence, + bool lazy, + bool interruptible, unsigned long timeout); + +extern void vmw_fence_obj_flush(struct vmw_fence_obj *fence); + +extern int vmw_fence_create(struct vmw_fence_manager *fman, + uint32_t seqno, + struct vmw_fence_obj **p_fence); + +extern int vmw_user_fence_create(struct drm_file *file_priv, + struct vmw_fence_manager *fman, + uint32_t sequence, + struct vmw_fence_obj **p_fence, + uint32_t *p_handle); + +extern void vmw_fence_fifo_up(struct vmw_fence_manager *fman); + +extern void vmw_fence_fifo_down(struct vmw_fence_manager *fman); + +extern int vmw_fence_obj_wait_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); + +extern int vmw_fence_obj_signaled_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); + +extern int vmw_fence_obj_unref_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int vmw_fence_event_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern void vmw_event_fence_fpriv_gone(struct vmw_fence_manager *fman, + struct list_head *event_list); +extern int vmw_event_fence_action_queue(struct drm_file *filee_priv, + struct vmw_fence_obj *fence, + struct drm_pending_event *event, + uint32_t *tv_sec, + uint32_t *tv_usec, + bool interruptible); +#endif /* _VMWGFX_FENCE_H_ */ |