| 1 |
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| 2 |
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| 3 | #ifndef _TTM_RANGE_MANAGER_H_
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| 4 | #define _TTM_RANGE_MANAGER_H_
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| 5 |
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| 6 | #include <drm/ttm/ttm_resource.h>
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| 7 | #include <drm/ttm/ttm_device.h>
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| 8 | #include <drm/drm_mm.h>
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| 9 |
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| 10 | |
| 11 | * struct ttm_range_mgr_node
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| 12 | *
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| 13 | * @base: base clase we extend
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| 14 | * @mm_nodes: MM nodes, usually 1
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| 15 | *
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| 16 | * Extending the ttm_resource object to manage an address space allocation with
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| 17 | * one or more drm_mm_nodes.
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| 18 |
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| 19 | struct ttm_range_mgr_node {
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| 20 | struct ttm_resource base;
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| 21 | struct drm_mm_node mm_nodes[];
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| 22 | };
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| 23 |
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| 24 | |
| 25 | * to_ttm_range_mgr_node
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| 26 | *
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| 27 | * @res: the resource to upcast
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| 28 | *
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| 29 | * Upcast the ttm_resource object into a ttm_range_mgr_node object.
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| 30 |
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| 31 | static inline struct ttm_range_mgr_node *
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| 32 | to_ttm_range_mgr_node(struct ttm_resource *res)
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| 33 | {
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| 34 | return container_of(res, struct ttm_range_mgr_node, base);
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| 35 | }
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| 36 |
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| 37 | int ttm_range_man_init_nocheck(struct ttm_device *bdev,
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| 38 | unsigned type, bool use_tt,
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| 39 | unsigned long p_size);
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| 40 | int ttm_range_man_fini_nocheck(struct ttm_device *bdev,
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| 41 | unsigned type);
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| 42 | static __always_inline int ttm_range_man_init(struct ttm_device *bdev,
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| 43 | unsigned int type, bool use_tt,
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| 44 | unsigned long p_size)
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| 45 | {
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| 46 | BUILD_BUG_ON(__builtin_constant_p(type) && type >= TTM_NUM_MEM_TYPES);
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| 47 | return ttm_range_man_init_nocheck(bdev, type, use_tt, p_size);
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| 48 | }
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| 49 |
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| 50 | static __always_inline int ttm_range_man_fini(struct ttm_device *bdev,
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| 51 | unsigned int type)
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| 52 | {
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| 53 | BUILD_BUG_ON(__builtin_constant_p(type) && type >= TTM_NUM_MEM_TYPES);
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| 54 | return ttm_range_man_fini_nocheck(bdev, type);
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| 55 | }
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| 56 | #endif
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