1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * Copyright (C) 2023 Loongson Technology Corporation Limited
9 #include <linux/container_of.h>
10 #include <linux/iosys-map.h>
11 #include <linux/list.h>
13 #include <drm/drm_gem.h>
14 #include <drm/ttm/ttm_bo.h>
15 #include <drm/ttm/ttm_placement.h>
16 #include <drm/ttm/ttm_range_manager.h>
17 #include <drm/ttm/ttm_tt.h>
19 #define LSDC_GEM_DOMAIN_SYSTEM 0x1
20 #define LSDC_GEM_DOMAIN_GTT 0x2
21 #define LSDC_GEM_DOMAIN_VRAM 0x4
24 struct ttm_buffer_object tbo;
26 /* Protected by gem.mutex */
27 struct list_head list;
31 unsigned int vmap_count;
32 /* cross device driver sharing reference count */
33 unsigned int sharing_count;
35 struct ttm_bo_kmap_obj kmap;
43 struct ttm_placement placement;
44 struct ttm_place placements[4];
47 static inline struct ttm_buffer_object *to_ttm_bo(struct drm_gem_object *gem)
49 return container_of(gem, struct ttm_buffer_object, base);
52 static inline struct lsdc_bo *to_lsdc_bo(struct ttm_buffer_object *tbo)
54 return container_of(tbo, struct lsdc_bo, tbo);
57 static inline struct lsdc_bo *gem_to_lsdc_bo(struct drm_gem_object *gem)
59 return container_of(gem, struct lsdc_bo, tbo.base);
62 const char *lsdc_mem_type_to_str(uint32_t mem_type);
63 const char *lsdc_domain_to_str(u32 domain);
65 struct lsdc_bo *lsdc_bo_create(struct drm_device *ddev,
70 struct dma_resv *resv);
72 struct lsdc_bo *lsdc_bo_create_kernel_pinned(struct drm_device *ddev,
76 void lsdc_bo_free_kernel_pinned(struct lsdc_bo *lbo);
78 int lsdc_bo_reserve(struct lsdc_bo *lbo);
79 void lsdc_bo_unreserve(struct lsdc_bo *lbo);
81 int lsdc_bo_pin(struct lsdc_bo *lbo, u32 domain, u64 *gpu_addr);
82 void lsdc_bo_unpin(struct lsdc_bo *lbo);
84 void lsdc_bo_ref(struct lsdc_bo *lbo);
85 void lsdc_bo_unref(struct lsdc_bo *lbo);
87 u64 lsdc_bo_gpu_offset(struct lsdc_bo *lbo);
88 size_t lsdc_bo_size(struct lsdc_bo *lbo);
90 int lsdc_bo_kmap(struct lsdc_bo *lbo);
91 void lsdc_bo_kunmap(struct lsdc_bo *lbo);
92 void lsdc_bo_clear(struct lsdc_bo *lbo);
94 int lsdc_bo_evict_vram(struct drm_device *ddev);
96 int lsdc_ttm_init(struct lsdc_device *ldev);
97 void lsdc_ttm_debugfs_init(struct lsdc_device *ldev);