i915/gt/intel_gt_buffer_pool.h

0001 /* SPDX-License-Identifier: MIT */
0002 /*
0003  * Copyright © 2014-2018 Intel Corporation
0004  */
0005
0006 #ifndef INTEL_GT_BUFFER_POOL_H
0007 #define INTEL_GT_BUFFER_POOL_H
0008
0009 #include <linux/types.h>
0010
0011 #include "i915_active.h"
0012 #include "intel_gt_buffer_pool_types.h"
0013
0014 struct intel_gt;
0015 struct i915_request;
0016
0017 struct intel_gt_buffer_pool_node *
0018 intel_gt_get_buffer_pool(struct intel_gt *gt, size_t size,
0019              enum i915_map_type type);
0020
0021 void intel_gt_buffer_pool_mark_used(struct intel_gt_buffer_pool_node *node);
0022
0023 static inline int
0024 intel_gt_buffer_pool_mark_active(struct intel_gt_buffer_pool_node *node,
0025                  struct i915_request *rq)
0026 {
0027     /* did we call mark_used? */
0028     GEM_WARN_ON(!node->pinned);
0029
0030     return i915_active_add_request(&node->active, rq);
0031 }
0032
0033 static inline void
0034 intel_gt_buffer_pool_put(struct intel_gt_buffer_pool_node *node)
0035 {
0036     i915_active_release(&node->active);
0037 }
0038
0039 void intel_gt_init_buffer_pool(struct intel_gt *gt);
0040 void intel_gt_flush_buffer_pool(struct intel_gt *gt);
0041 void intel_gt_fini_buffer_pool(struct intel_gt *gt);
0042
0043 #endif /* INTEL_GT_BUFFER_POOL_H */