1 /* SPDX-License-Identifier: MIT */
2 /*
3  * Copyright © 2021 Intel Corporation
4  */
5 #ifndef _INTEL_REGION_TTM_H_
6 #define _INTEL_REGION_TTM_H_
7 
8 #include <linux/types.h>
9 
10 #include "i915_selftest.h"
11 
12 struct drm_i915_private;
13 struct intel_memory_region;
14 struct ttm_resource;
15 struct ttm_device_funcs;
16 
17 int intel_region_ttm_device_init(struct drm_i915_private *dev_priv);
18 
19 void intel_region_ttm_device_fini(struct drm_i915_private *dev_priv);
20 
21 int intel_region_ttm_init(struct intel_memory_region *mem);
22 
23 int intel_region_ttm_fini(struct intel_memory_region *mem);
24 
25 struct i915_refct_sgt *
26 intel_region_ttm_resource_to_rsgt(struct intel_memory_region *mem,
27 				  struct ttm_resource *res,
28 				  u32 page_alignment);
29 
30 void intel_region_ttm_resource_free(struct intel_memory_region *mem,
31 				    struct ttm_resource *res);
32 
33 int intel_region_to_ttm_type(const struct intel_memory_region *mem);
34 
35 struct ttm_device_funcs *i915_ttm_driver(void);
36 
37 #ifdef CONFIG_DRM_I915_SELFTEST
38 struct ttm_resource *
39 intel_region_ttm_resource_alloc(struct intel_memory_region *mem,
40 				resource_size_t offset,
41 				resource_size_t size,
42 				unsigned int flags);
43 #endif
44 #endif /* _INTEL_REGION_TTM_H_ */
45