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편집 파일: ttm_range_manager.h

/* SPDX-License-Identifier: GPL-2.0 OR MIT */ #ifndef _TTM_RANGE_MANAGER_H_ #define _TTM_RANGE_MANAGER_H_ #include <drm/ttm/ttm_resource.h> #include <drm/ttm/ttm_device.h> #include <drm/drm_mm.h> /** * struct ttm_range_mgr_node * * @base: base clase we extend * @mm_nodes: MM nodes, usually 1 * * Extending the ttm_resource object to manage an address space allocation with * one or more drm_mm_nodes. */ struct ttm_range_mgr_node { struct ttm_resource base; struct drm_mm_node mm_nodes[]; }; /** * to_ttm_range_mgr_node * * @res: the resource to upcast * * Upcast the ttm_resource object into a ttm_range_mgr_node object. */ static inline struct ttm_range_mgr_node * to_ttm_range_mgr_node(struct ttm_resource *res) { return container_of(res, struct ttm_range_mgr_node, base); } int ttm_range_man_init_nocheck(struct ttm_device *bdev, unsigned type, bool use_tt, unsigned long p_size); int ttm_range_man_fini_nocheck(struct ttm_device *bdev, unsigned type); static __always_inline int ttm_range_man_init(struct ttm_device *bdev, unsigned int type, bool use_tt, unsigned long p_size) { BUILD_BUG_ON(__builtin_constant_p(type) && type >= TTM_NUM_MEM_TYPES); return ttm_range_man_init_nocheck(bdev, type, use_tt, p_size); } static __always_inline int ttm_range_man_fini(struct ttm_device *bdev, unsigned int type) { BUILD_BUG_ON(__builtin_constant_p(type) && type >= TTM_NUM_MEM_TYPES); return ttm_range_man_fini_nocheck(bdev, type); } #endif