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 #include <linux/mm_types.h> 25 26 enum dma_data_direction; 27 28 struct dma_buf; 29 struct drm_device; 30 struct drm_file; 31 struct drm_gem_object; 32 struct drm_mode_create_dumb; 33 struct file; 34 struct list_head; 35 struct page; 36 struct seq_file; 37 struct vm_area_struct; 38 struct vm_fault; 39 40 union omap_gem_size; 41 42 /* Initialization and Cleanup */ 43 void omap_gem_init(struct drm_device *dev); 44 void omap_gem_deinit(struct drm_device *dev); 45 46 #ifdef CONFIG_PM 47 int omap_gem_resume(struct drm_device *dev); 48 #endif 49 50 #ifdef CONFIG_DEBUG_FS 51 void omap_gem_describe(struct drm_gem_object *obj, struct seq_file *m); 52 void omap_gem_describe_objects(struct list_head *list, struct seq_file *m); 53 #endif 54 55 /* GEM Object Creation and Deletion */ 56 struct drm_gem_object *omap_gem_new(struct drm_device *dev, 57 union omap_gem_size gsize, u32 flags); 58 struct drm_gem_object *omap_gem_new_dmabuf(struct drm_device *dev, size_t size, 59 struct sg_table *sgt); 60 int omap_gem_new_handle(struct drm_device *dev, struct drm_file *file, 61 union omap_gem_size gsize, u32 flags, u32 *handle); 62 void omap_gem_free_object(struct drm_gem_object *obj); 63 void *omap_gem_vaddr(struct drm_gem_object *obj); 64 65 /* Dumb Buffers Interface */ 66 int omap_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev, 67 u32 handle, u64 *offset); 68 int omap_gem_dumb_create(struct drm_file *file, struct drm_device *dev, 69 struct drm_mode_create_dumb *args); 70 71 /* mmap() Interface */ 72 int omap_gem_mmap(struct file *filp, struct vm_area_struct *vma); 73 int omap_gem_mmap_obj(struct drm_gem_object *obj, 74 struct vm_area_struct *vma); 75 u64 omap_gem_mmap_offset(struct drm_gem_object *obj); 76 size_t omap_gem_mmap_size(struct drm_gem_object *obj); 77 78 /* PRIME Interface */ 79 struct dma_buf *omap_gem_prime_export(struct drm_device *dev, 80 struct drm_gem_object *obj, int flags); 81 struct drm_gem_object *omap_gem_prime_import(struct drm_device *dev, 82 struct dma_buf *buffer); 83 84 vm_fault_t omap_gem_fault(struct vm_fault *vmf); 85 int omap_gem_roll(struct drm_gem_object *obj, u32 roll); 86 void omap_gem_cpu_sync_page(struct drm_gem_object *obj, int pgoff); 87 void omap_gem_dma_sync_buffer(struct drm_gem_object *obj, 88 enum dma_data_direction dir); 89 int omap_gem_pin(struct drm_gem_object *obj, dma_addr_t *dma_addr); 90 void omap_gem_unpin(struct drm_gem_object *obj); 91 int omap_gem_get_pages(struct drm_gem_object *obj, struct page ***pages, 92 bool remap); 93 int omap_gem_put_pages(struct drm_gem_object *obj); 94 95 u32 omap_gem_flags(struct drm_gem_object *obj); 96 int omap_gem_rotated_dma_addr(struct drm_gem_object *obj, u32 orient, 97 int x, int y, dma_addr_t *dma_addr); 98 int omap_gem_tiled_stride(struct drm_gem_object *obj, u32 orient); 99 100 #endif /* __OMAPDRM_GEM_H__ */ 101