1 #ifndef __DRM_GEM_CMA_HELPER_H__ 2 #define __DRM_GEM_CMA_HELPER_H__ 3 4 #include <drm/drmP.h> 5 6 struct drm_gem_cma_object { 7 struct drm_gem_object base; 8 dma_addr_t paddr; 9 struct sg_table *sgt; 10 11 /* For objects with DMA memory allocated by GEM CMA */ 12 void *vaddr; 13 }; 14 15 static inline struct drm_gem_cma_object * 16 to_drm_gem_cma_obj(struct drm_gem_object *gem_obj) 17 { 18 return container_of(gem_obj, struct drm_gem_cma_object, base); 19 } 20 21 /* free gem object. */ 22 void drm_gem_cma_free_object(struct drm_gem_object *gem_obj); 23 24 /* create memory region for drm framebuffer. */ 25 int drm_gem_cma_dumb_create(struct drm_file *file_priv, 26 struct drm_device *drm, struct drm_mode_create_dumb *args); 27 28 /* map memory region for drm framebuffer to user space. */ 29 int drm_gem_cma_dumb_map_offset(struct drm_file *file_priv, 30 struct drm_device *drm, uint32_t handle, uint64_t *offset); 31 32 /* set vm_flags and we can change the vm attribute to other one at here. */ 33 int drm_gem_cma_mmap(struct file *filp, struct vm_area_struct *vma); 34 35 /* allocate physical memory. */ 36 struct drm_gem_cma_object *drm_gem_cma_create(struct drm_device *drm, 37 unsigned int size); 38 39 extern const struct vm_operations_struct drm_gem_cma_vm_ops; 40 41 #ifdef CONFIG_DEBUG_FS 42 void drm_gem_cma_describe(struct drm_gem_cma_object *obj, struct seq_file *m); 43 #endif 44 45 struct sg_table *drm_gem_cma_prime_get_sg_table(struct drm_gem_object *obj); 46 struct drm_gem_object * 47 drm_gem_cma_prime_import_sg_table(struct drm_device *dev, size_t size, 48 struct sg_table *sgt); 49 int drm_gem_cma_prime_mmap(struct drm_gem_object *obj, 50 struct vm_area_struct *vma); 51 void *drm_gem_cma_prime_vmap(struct drm_gem_object *obj); 52 void drm_gem_cma_prime_vunmap(struct drm_gem_object *obj, void *vaddr); 53 54 #endif /* __DRM_GEM_CMA_HELPER_H__ */ 55 #ifndef __DRM_GEM_CMA_HELPER_H__ 56 #define __DRM_GEM_CMA_HELPER_H__ 57 58 #include <drm/drmP.h> 59 60 struct drm_gem_cma_object { 61 struct drm_gem_object base; 62 dma_addr_t paddr; 63 struct sg_table *sgt; 64 65 /* For objects with DMA memory allocated by GEM CMA */ 66 void *vaddr; 67 }; 68 69 static inline struct drm_gem_cma_object * 70 to_drm_gem_cma_obj(struct drm_gem_object *gem_obj) 71 { 72 return container_of(gem_obj, struct drm_gem_cma_object, base); 73 } 74 75 /* free gem object. */ 76 void drm_gem_cma_free_object(struct drm_gem_object *gem_obj); 77 78 /* create memory region for drm framebuffer. */ 79 int drm_gem_cma_dumb_create(struct drm_file *file_priv, 80 struct drm_device *drm, struct drm_mode_create_dumb *args); 81 82 /* map memory region for drm framebuffer to user space. */ 83 int drm_gem_cma_dumb_map_offset(struct drm_file *file_priv, 84 struct drm_device *drm, uint32_t handle, uint64_t *offset); 85 86 /* set vm_flags and we can change the vm attribute to other one at here. */ 87 int drm_gem_cma_mmap(struct file *filp, struct vm_area_struct *vma); 88 89 /* allocate physical memory. */ 90 struct drm_gem_cma_object *drm_gem_cma_create(struct drm_device *drm, 91 unsigned int size); 92 93 extern const struct vm_operations_struct drm_gem_cma_vm_ops; 94 95 #ifdef CONFIG_DEBUG_FS 96 void drm_gem_cma_describe(struct drm_gem_cma_object *obj, struct seq_file *m); 97 #endif 98 99 struct sg_table *drm_gem_cma_prime_get_sg_table(struct drm_gem_object *obj); 100 struct drm_gem_object * 101 drm_gem_cma_prime_import_sg_table(struct drm_device *dev, size_t size, 102 struct sg_table *sgt); 103 int drm_gem_cma_prime_mmap(struct drm_gem_object *obj, 104 struct vm_area_struct *vma); 105 void *drm_gem_cma_prime_vmap(struct drm_gem_object *obj); 106 void drm_gem_cma_prime_vunmap(struct drm_gem_object *obj, void *vaddr); 107 108 #endif /* __DRM_GEM_CMA_HELPER_H__ */ 109