1 /* 2 * omap_gem.h -- OMAP DRM GEM Object Management 3 * 4 * Copyright (C) 2011 Texas Instruments 5 * Author: Rob Clark <rob@ti.com> 6 * 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License version 2 as published by 9 * the Free Software Foundation. 10 * 11 * This program is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 14 * more details. 15 * 16 * You should have received a copy of the GNU General Public License along with 17 * this program. If not, see <http://www.gnu.org/licenses/>. 18 */ 19 20 #ifndef __OMAPDRM_GEM_H__ 21 #define __OMAPDRM_GEM_H__ 22 23 #include <linux/types.h> 24 25 enum dma_data_direction; 26 27 struct dma_buf; 28 struct drm_device; 29 struct drm_file; 30 struct drm_gem_object; 31 struct drm_mode_create_dumb; 32 struct file; 33 struct list_head; 34 struct page; 35 struct seq_file; 36 struct vm_area_struct; 37 struct vm_fault; 38 39 union omap_gem_size; 40 41 /* Initialization and Cleanup */ 42 void omap_gem_init(struct drm_device *dev); 43 void omap_gem_deinit(struct drm_device *dev); 44 45 #ifdef CONFIG_PM 46 int omap_gem_resume(struct drm_device *dev); 47 #endif 48 49 #ifdef CONFIG_DEBUG_FS 50 void omap_gem_describe(struct drm_gem_object *obj, struct seq_file *m); 51 void omap_gem_describe_objects(struct list_head *list, struct seq_file *m); 52 #endif 53 54 /* GEM Object Creation and Deletion */ 55 struct drm_gem_object *omap_gem_new(struct drm_device *dev, 56 union omap_gem_size gsize, uint32_t flags); 57 struct drm_gem_object *omap_gem_new_dmabuf(struct drm_device *dev, size_t size, 58 struct sg_table *sgt); 59 int omap_gem_new_handle(struct drm_device *dev, struct drm_file *file, 60 union omap_gem_size gsize, uint32_t flags, uint32_t *handle); 61 void omap_gem_free_object(struct drm_gem_object *obj); 62 void *omap_gem_vaddr(struct drm_gem_object *obj); 63 64 /* Dumb Buffers Interface */ 65 int omap_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev, 66 uint32_t handle, uint64_t *offset); 67 int omap_gem_dumb_create(struct drm_file *file, struct drm_device *dev, 68 struct drm_mode_create_dumb *args); 69 70 /* mmap() Interface */ 71 int omap_gem_mmap(struct file *filp, struct vm_area_struct *vma); 72 int omap_gem_mmap_obj(struct drm_gem_object *obj, 73 struct vm_area_struct *vma); 74 uint64_t omap_gem_mmap_offset(struct drm_gem_object *obj); 75 size_t omap_gem_mmap_size(struct drm_gem_object *obj); 76 77 /* PRIME Interface */ 78 struct dma_buf *omap_gem_prime_export(struct drm_device *dev, 79 struct drm_gem_object *obj, int flags); 80 struct drm_gem_object *omap_gem_prime_import(struct drm_device *dev, 81 struct dma_buf *buffer); 82 83 int omap_gem_fault(struct vm_fault *vmf); 84 int omap_gem_roll(struct drm_gem_object *obj, uint32_t roll); 85 void omap_gem_cpu_sync_page(struct drm_gem_object *obj, int pgoff); 86 void omap_gem_dma_sync_buffer(struct drm_gem_object *obj, 87 enum dma_data_direction dir); 88 int omap_gem_pin(struct drm_gem_object *obj, dma_addr_t *dma_addr); 89 void omap_gem_unpin(struct drm_gem_object *obj); 90 int omap_gem_get_pages(struct drm_gem_object *obj, struct page ***pages, 91 bool remap); 92 int omap_gem_put_pages(struct drm_gem_object *obj); 93 94 uint32_t omap_gem_flags(struct drm_gem_object *obj); 95 int omap_gem_rotated_dma_addr(struct drm_gem_object *obj, uint32_t orient, 96 int x, int y, dma_addr_t *dma_addr); 97 int omap_gem_tiled_stride(struct drm_gem_object *obj, uint32_t orient); 98 99 #endif /* __OMAPDRM_GEM_H__ */ 100