FENCE_INIT(9)                     Device drivers infrastructure                     FENCE_INIT(9)



NAME
       fence_init - Initialize a custom fence.

SYNOPSIS
       void fence_init(struct fence * fence, const struct fence_ops * ops, spinlock_t * lock,
                       u64 context, unsigned seqno);

ARGUMENTS
       fence
           [in] the fence to initialize

       ops
           [in] the fence_ops for operations on this fence

       lock
           [in] the irqsafe spinlock to use for locking this fence

       context
           [in] the execution context this fence is run on

       seqno
           [in] a linear increasing sequence number for this context

DESCRIPTION
       Initializes an allocated fence, the caller doesn't have to keep its refcount after
       committing with this fence, but it will need to hold a refcount again if
       fence_ops.enable_signaling gets called. This can be used for other implementing other
       types of fence.

       context and seqno are used for easy comparison between fences, allowing to check which
       fence is later by simply using fence_later.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                             FENCE_INIT(9)