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b9d47450 SH |
1 | #ifndef __DRM_GEM_CMA_HELPER_H__ |
2 | #define __DRM_GEM_CMA_HELPER_H__ | |
3 | ||
740c22ae | 4 | #include <drm/drmP.h> |
d9fc9413 | 5 | #include <drm/drm_gem.h> |
740c22ae | 6 | |
d7883f87 TR |
7 | /** |
8 | * struct drm_gem_cma_object - GEM object backed by CMA memory allocations | |
9 | * @base: base GEM object | |
10 | * @paddr: physical address of the backing memory | |
11 | * @sgt: scatter/gather table for imported PRIME buffers | |
12 | * @vaddr: kernel virtual address of the backing memory | |
13 | */ | |
b9d47450 SH |
14 | struct drm_gem_cma_object { |
15 | struct drm_gem_object base; | |
16 | dma_addr_t paddr; | |
71d7282a LP |
17 | struct sg_table *sgt; |
18 | ||
19 | /* For objects with DMA memory allocated by GEM CMA */ | |
b9d47450 SH |
20 | void *vaddr; |
21 | }; | |
22 | ||
23 | static inline struct drm_gem_cma_object * | |
24 | to_drm_gem_cma_obj(struct drm_gem_object *gem_obj) | |
25 | { | |
26 | return container_of(gem_obj, struct drm_gem_cma_object, base); | |
27 | } | |
28 | ||
d7883f87 | 29 | /* free GEM object */ |
b9d47450 SH |
30 | void drm_gem_cma_free_object(struct drm_gem_object *gem_obj); |
31 | ||
6d178291 TR |
32 | /* create memory region for DRM framebuffer */ |
33 | int drm_gem_cma_dumb_create_internal(struct drm_file *file_priv, | |
34 | struct drm_device *drm, | |
35 | struct drm_mode_create_dumb *args); | |
36 | ||
d7883f87 | 37 | /* create memory region for DRM framebuffer */ |
b9d47450 | 38 | int drm_gem_cma_dumb_create(struct drm_file *file_priv, |
d7883f87 TR |
39 | struct drm_device *drm, |
40 | struct drm_mode_create_dumb *args); | |
b9d47450 | 41 | |
d7883f87 | 42 | /* map memory region for DRM framebuffer to user space */ |
b9d47450 | 43 | int drm_gem_cma_dumb_map_offset(struct drm_file *file_priv, |
d7883f87 TR |
44 | struct drm_device *drm, u32 handle, |
45 | u64 *offset); | |
b9d47450 | 46 | |
d7883f87 | 47 | /* set vm_flags and we can change the VM attribute to other one at here */ |
b9d47450 SH |
48 | int drm_gem_cma_mmap(struct file *filp, struct vm_area_struct *vma); |
49 | ||
d7883f87 | 50 | /* allocate physical memory */ |
b9d47450 | 51 | struct drm_gem_cma_object *drm_gem_cma_create(struct drm_device *drm, |
d7883f87 | 52 | size_t size); |
b9d47450 SH |
53 | |
54 | extern const struct vm_operations_struct drm_gem_cma_vm_ops; | |
55 | ||
6f646095 RC |
56 | #ifdef CONFIG_DEBUG_FS |
57 | void drm_gem_cma_describe(struct drm_gem_cma_object *obj, struct seq_file *m); | |
58 | #endif | |
59 | ||
78467dc5 JS |
60 | struct sg_table *drm_gem_cma_prime_get_sg_table(struct drm_gem_object *obj); |
61 | struct drm_gem_object * | |
b5e9c1a2 ML |
62 | drm_gem_cma_prime_import_sg_table(struct drm_device *dev, |
63 | struct dma_buf_attachment *attach, | |
78467dc5 JS |
64 | struct sg_table *sgt); |
65 | int drm_gem_cma_prime_mmap(struct drm_gem_object *obj, | |
66 | struct vm_area_struct *vma); | |
67 | void *drm_gem_cma_prime_vmap(struct drm_gem_object *obj); | |
68 | void drm_gem_cma_prime_vunmap(struct drm_gem_object *obj, void *vaddr); | |
69 | ||
b9d47450 | 70 | #endif /* __DRM_GEM_CMA_HELPER_H__ */ |