mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-29 23:53:32 +00:00
f1e8c67123
Reduce the list iteration when incrementing the timeline by storing the fences in increasing order. v2: Prevent spinlock recursion on free during create v3: Fixup rebase conflict inside comments that escaped the compiler. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Sumit Semwal <sumit.semwal@linaro.org> Cc: Sean Paul <seanpaul@chromium.org> Cc: Gustavo Padovan <gustavo@padovan.org> Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170629211253.22766-1-chris@chris-wilson.co.uk
83 lines
2.1 KiB
C
83 lines
2.1 KiB
C
/*
|
|
* Sync File validation framework and debug infomation
|
|
*
|
|
* Copyright (C) 2012 Google, Inc.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
*/
|
|
|
|
#ifndef _LINUX_SYNC_H
|
|
#define _LINUX_SYNC_H
|
|
|
|
#include <linux/list.h>
|
|
#include <linux/rbtree.h>
|
|
#include <linux/spinlock.h>
|
|
#include <linux/dma-fence.h>
|
|
|
|
#include <linux/sync_file.h>
|
|
#include <uapi/linux/sync_file.h>
|
|
|
|
/**
|
|
* struct sync_timeline - sync object
|
|
* @kref: reference count on fence.
|
|
* @name: name of the sync_timeline. Useful for debugging
|
|
* @lock: lock protecting @pt_list and @value
|
|
* @pt_tree: rbtree of active (unsignaled/errored) sync_pts
|
|
* @pt_list: list of active (unsignaled/errored) sync_pts
|
|
* @sync_timeline_list: membership in global sync_timeline_list
|
|
*/
|
|
struct sync_timeline {
|
|
struct kref kref;
|
|
char name[32];
|
|
|
|
/* protected by lock */
|
|
u64 context;
|
|
int value;
|
|
|
|
struct rb_root pt_tree;
|
|
struct list_head pt_list;
|
|
spinlock_t lock;
|
|
|
|
struct list_head sync_timeline_list;
|
|
};
|
|
|
|
static inline struct sync_timeline *dma_fence_parent(struct dma_fence *fence)
|
|
{
|
|
return container_of(fence->lock, struct sync_timeline, lock);
|
|
}
|
|
|
|
/**
|
|
* struct sync_pt - sync_pt object
|
|
* @base: base fence object
|
|
* @link: link on the sync timeline's list
|
|
* @node: node in the sync timeline's tree
|
|
*/
|
|
struct sync_pt {
|
|
struct dma_fence base;
|
|
struct list_head link;
|
|
struct rb_node node;
|
|
};
|
|
|
|
#ifdef CONFIG_SW_SYNC
|
|
|
|
extern const struct file_operations sw_sync_debugfs_fops;
|
|
|
|
void sync_timeline_debug_add(struct sync_timeline *obj);
|
|
void sync_timeline_debug_remove(struct sync_timeline *obj);
|
|
void sync_file_debug_add(struct sync_file *fence);
|
|
void sync_file_debug_remove(struct sync_file *fence);
|
|
void sync_dump(void);
|
|
|
|
#else
|
|
# define sync_timeline_debug_add(obj)
|
|
# define sync_timeline_debug_remove(obj)
|
|
# define sync_file_debug_add(fence)
|
|
# define sync_file_debug_remove(fence)
|
|
# define sync_dump()
|
|
#endif
|
|
|
|
#endif /* _LINUX_SYNC_H */
|