projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| b9d47450 SH |
1 | #ifndef __DRM_GEM_CMA_HELPER_H__ |
| 2 | #define __DRM_GEM_CMA_HELPER_H__ | |
| 3 | ||
| 740c22ae SG |
4 | #include <drm/drmP.h> |
| 5 | ||
| b9d47450 SH |
6 | struct drm_gem_cma_object { |
| 7 | struct drm_gem_object base; | |
| 8 | dma_addr_t paddr; | |
| 71d7282a LP |
9 | struct sg_table *sgt; |
| 10 | ||
| 11 | /* For objects with DMA memory allocated by GEM CMA */ | |
| b9d47450 SH |
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 | ||
| b9d47450 SH |
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 | ||
| 6f646095 RC |
41 | #ifdef CONFIG_DEBUG_FS |
| 42 | void drm_gem_cma_describe(struct drm_gem_cma_object *obj, struct seq_file *m); | |
| 43 | #endif | |
| 44 | ||
| 78467dc5 JS |
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 | ||
| b9d47450 | 54 | #endif /* __DRM_GEM_CMA_HELPER_H__ */ |