1 /* 2 * include/uapi/drm/omap_drm.h 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 __OMAP_DRM_H__ 21 #define __OMAP_DRM_H__ 22 23 #include "drm.h" 24 25 #if defined(__cplusplus) 26 extern "C" { 27 #endif 28 29 /* Please note that modifications to all structs defined here are 30 * subject to backwards-compatibility constraints. 31 */ 32 33 #define OMAP_PARAM_CHIPSET_ID 1 /* ie. 0x3430, 0x4430, etc */ 34 35 struct drm_omap_param { 36 uint64_t param; /* in */ 37 uint64_t value; /* in (set_param), out (get_param) */ 38 }; 39 40 #define OMAP_BO_SCANOUT 0x00000001 /* scanout capable (phys contiguous) */ 41 #define OMAP_BO_CACHE_MASK 0x00000006 /* cache type mask, see cache modes */ 42 #define OMAP_BO_TILED_MASK 0x00000f00 /* tiled mapping mask, see tiled modes */ 43 44 /* cache modes */ 45 #define OMAP_BO_CACHED 0x00000000 /* default */ 46 #define OMAP_BO_WC 0x00000002 /* write-combine */ 47 #define OMAP_BO_UNCACHED 0x00000004 /* strongly-ordered (uncached) */ 48 49 /* tiled modes */ 50 #define OMAP_BO_TILED_8 0x00000100 51 #define OMAP_BO_TILED_16 0x00000200 52 #define OMAP_BO_TILED_32 0x00000300 53 #define OMAP_BO_TILED (OMAP_BO_TILED_8 | OMAP_BO_TILED_16 | OMAP_BO_TILED_32) 54 55 union omap_gem_size { 56 uint32_t bytes; /* (for non-tiled formats) */ 57 struct { 58 uint16_t width; 59 uint16_t height; 60 } tiled; /* (for tiled formats) */ 61 }; 62 63 struct drm_omap_gem_new { 64 union omap_gem_size size; /* in */ 65 uint32_t flags; /* in */ 66 uint32_t handle; /* out */ 67 uint32_t __pad; 68 }; 69 70 /* mask of operations: */ 71 enum omap_gem_op { 72 OMAP_GEM_READ = 0x01, 73 OMAP_GEM_WRITE = 0x02, 74 }; 75 76 struct drm_omap_gem_cpu_prep { 77 uint32_t handle; /* buffer handle (in) */ 78 uint32_t op; /* mask of omap_gem_op (in) */ 79 }; 80 81 struct drm_omap_gem_cpu_fini { 82 uint32_t handle; /* buffer handle (in) */ 83 uint32_t op; /* mask of omap_gem_op (in) */ 84 /* TODO maybe here we pass down info about what regions are touched 85 * by sw so we can be clever about cache ops? For now a placeholder, 86 * set to zero and we just do full buffer flush.. 87 */ 88 uint32_t nregions; 89 uint32_t __pad; 90 }; 91 92 struct drm_omap_gem_info { 93 uint32_t handle; /* buffer handle (in) */ 94 uint32_t pad; 95 uint64_t offset; /* mmap offset (out) */ 96 /* note: in case of tiled buffers, the user virtual size can be 97 * different from the physical size (ie. how many pages are needed 98 * to back the object) which is returned in DRM_IOCTL_GEM_OPEN.. 99 * This size here is the one that should be used if you want to 100 * mmap() the buffer: 101 */ 102 uint32_t size; /* virtual size for mmap'ing (out) */ 103 uint32_t __pad; 104 }; 105 106 #define DRM_OMAP_GET_PARAM 0x00 107 #define DRM_OMAP_SET_PARAM 0x01 108 #define DRM_OMAP_GEM_NEW 0x03 109 #define DRM_OMAP_GEM_CPU_PREP 0x04 110 #define DRM_OMAP_GEM_CPU_FINI 0x05 111 #define DRM_OMAP_GEM_INFO 0x06 112 #define DRM_OMAP_NUM_IOCTLS 0x07 113 114 #define DRM_IOCTL_OMAP_GET_PARAM DRM_IOWR(DRM_COMMAND_BASE + DRM_OMAP_GET_PARAM, struct drm_omap_param) 115 #define DRM_IOCTL_OMAP_SET_PARAM DRM_IOW (DRM_COMMAND_BASE + DRM_OMAP_SET_PARAM, struct drm_omap_param) 116 #define DRM_IOCTL_OMAP_GEM_NEW DRM_IOWR(DRM_COMMAND_BASE + DRM_OMAP_GEM_NEW, struct drm_omap_gem_new) 117 #define DRM_IOCTL_OMAP_GEM_CPU_PREP DRM_IOW (DRM_COMMAND_BASE + DRM_OMAP_GEM_CPU_PREP, struct drm_omap_gem_cpu_prep) 118 #define DRM_IOCTL_OMAP_GEM_CPU_FINI DRM_IOW (DRM_COMMAND_BASE + DRM_OMAP_GEM_CPU_FINI, struct drm_omap_gem_cpu_fini) 119 #define DRM_IOCTL_OMAP_GEM_INFO DRM_IOWR(DRM_COMMAND_BASE + DRM_OMAP_GEM_INFO, struct drm_omap_gem_info) 120 121 #if defined(__cplusplus) 122 } 123 #endif 124 125 #endif /* __OMAP_DRM_H__ */ 126