drivers/gpu/drm/i915/gt/intel_gt_buffer_pool.h

   1 /* SPDX-License-Identifier: MIT */
   2 /*
   3  * Copyright © 2014-2018 Intel Corporation
   4  */
   5
   6 #ifndef INTEL_GT_BUFFER_POOL_H
   7 #define INTEL_GT_BUFFER_POOL_H
   8
   9 #include <linux/types.h>
  10
  11 #include "i915_active.h"
  12 #include "intel_gt_buffer_pool_types.h"
  13
  14 struct intel_gt;
  15 struct i915_request;
  16
  17 struct intel_gt_buffer_pool_node *
  18 intel_gt_get_buffer_pool(struct intel_gt *gt, size_t size,
  19                          enum i915_map_type type);
  20
  21 void intel_gt_buffer_pool_mark_used(struct intel_gt_buffer_pool_node *node);
  22
  23 static inline int
  24 intel_gt_buffer_pool_mark_active(struct intel_gt_buffer_pool_node *node,
  25                                  struct i915_request *rq)
  26 {
  27         /* did we call mark_used? */
  28         GEM_WARN_ON(!node->pinned);
  29
  30         return i915_active_add_request(&node->active, rq);
  31 }
  32
  33 static inline void
  34 intel_gt_buffer_pool_put(struct intel_gt_buffer_pool_node *node)
  35 {
  36         i915_active_release(&node->active);
  37 }
  38
  39 void intel_gt_init_buffer_pool(struct intel_gt *gt);
  40 void intel_gt_flush_buffer_pool(struct intel_gt *gt);
  41 void intel_gt_fini_buffer_pool(struct intel_gt *gt);
  42
  43 #endif /* INTEL_GT_BUFFER_POOL_H */