/* SPDX-License-Identifier: MIT */ /* * Copyright © 2021 Intel Corporation */ #ifndef _I915_DEPS_H_ #define _I915_DEPS_H_ #include <linux/types.h> struct ttm_operation_ctx; struct dma_fence; struct dma_resv; /** * struct i915_deps - Collect dependencies into a single dma-fence * @single: Storage for pointer if the collection is a single fence. * @fences: Allocated array of fence pointers if more than a single fence; * otherwise points to the address of @single. * @num_deps: Current number of dependency fences. * @fences_size: Size of the @fences array in number of pointers. * @gfp: Allocation mode. */ struct i915_deps { struct dma_fence *single; struct dma_fence **fences; unsigned int num_deps; unsigned int fences_size; gfp_t gfp; }; void i915_deps_init(struct i915_deps *deps, gfp_t gfp); void i915_deps_fini(struct i915_deps *deps); int i915_deps_add_dependency(struct i915_deps *deps, struct dma_fence *fence, const struct ttm_operation_ctx *ctx); int i915_deps_add_resv(struct i915_deps *deps, struct dma_resv *resv, const struct ttm_operation_ctx *ctx); int i915_deps_sync(const struct i915_deps *deps, const struct ttm_operation_ctx *ctx); #endif