cregit-Linux how code gets into the kernel

Release 4.7 drivers/gpu/drm/vmwgfx/vmwgfx_fence.h

/**************************************************************************
 *
 * Copyright © 2011-2012 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); }

Contributors

PersonTokensPropCommitsCommitProp
maarten lankhorstmaarten lankhorst2976.32%150.00%
thomas hellstromthomas hellstrom923.68%150.00%
Total38100.00%2100.00%


static inline struct vmw_fence_obj * vmw_fence_obj_reference(struct vmw_fence_obj *fence) { if (fence) fence_get(&fence->base); return fence; }

Contributors

PersonTokensPropCommitsCommitProp
maarten lankhorstmaarten lankhorst1965.52%150.00%
thomas hellstromthomas hellstrom1034.48%150.00%
Total29100.00%2100.00%

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 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_ */

Overall Contributors

PersonTokensPropCommitsCommitProp
thomas hellstromthomas hellstrom35686.83%466.67%
maarten lankhorstmaarten lankhorst5312.93%116.67%
sinclair yehsinclair yeh10.24%116.67%
Total410100.00%6100.00%
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