/* SPDX-License-Identifier: MIT */ /* * Copyright © 2022 Intel Corporation */ #ifndef _XE_PREEMPT_FENCE_H_ #define _XE_PREEMPT_FENCE_H_ #include "xe_preempt_fence_types.h" struct list_head; struct dma_fence * xe_preempt_fence_create(struct xe_exec_queue *q, u64 context, u32 seqno); struct xe_preempt_fence *xe_preempt_fence_alloc(void); void xe_preempt_fence_free(struct xe_preempt_fence *pfence); struct dma_fence * xe_preempt_fence_arm(struct xe_preempt_fence *pfence, struct xe_exec_queue *q, u64 context, u32 seqno); static inline struct xe_preempt_fence * to_preempt_fence(struct dma_fence *fence) { return container_of(fence, struct xe_preempt_fence, base); } /** * xe_preempt_fence_link() - Return a link used to keep unarmed preempt * fences on a list. * @pfence: Pointer to the preempt fence. * * The link is embedded in the struct xe_preempt_fence. Use * link_to_preempt_fence() to convert back to the preempt fence. * * Return: A pointer to an embedded struct list_head. */ static inline struct list_head * xe_preempt_fence_link(struct xe_preempt_fence *pfence) { return &pfence->link; } /** * to_preempt_fence_from_link() - Convert back to a preempt fence pointer * from a link obtained with xe_preempt_fence_link(). * @link: The struct list_head obtained from xe_preempt_fence_link(). * * Return: A pointer to the embedding struct xe_preempt_fence. */ static inline struct xe_preempt_fence * to_preempt_fence_from_link(struct list_head *link) { return container_of(link, struct xe_preempt_fence, link); } bool xe_fence_is_xe_preempt(const struct dma_fence *fence); #endif