1 /* 2 * include/uapi/drm/omap_drm.h 3 * 4 * Copyright (C) 2011 Texas Instruments 5 * Author: Rob Clark <rob (at) 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/drm.h> 24 25 /* Please note that modifications to all structs defined here are 26 * subject to backwards-compatibility constraints. 27 */ 28 29 #define OMAP_PARAM_CHIPSET_ID 1 /* ie. 0x3430, 0x4430, etc */ 30 31 struct drm_omap_param { 32 uint64_t param; /* in */ 33 uint64_t value; /* in (set_param), out (get_param) */ 34 }; 35 36 #define OMAP_BO_SCANOUT 0x00000001 /* scanout capable (phys contiguous) */ 37 #define OMAP_BO_CACHE_MASK 0x00000006 /* cache type mask, see cache modes */ 38 #define OMAP_BO_TILED_MASK 0x00000f00 /* tiled mapping mask, see tiled modes */ 39 40 /* cache modes */ 41 #define OMAP_BO_CACHED 0x00000000 /* default */ 42 #define OMAP_BO_WC 0x00000002 /* write-combine */ 43 #define OMAP_BO_UNCACHED 0x00000004 /* strongly-ordered (uncached) */ 44 45 /* tiled modes */ 46 #define OMAP_BO_TILED_8 0x00000100 47 #define OMAP_BO_TILED_16 0x00000200 48 #define OMAP_BO_TILED_32 0x00000300 49 #define OMAP_BO_TILED (OMAP_BO_TILED_8 | OMAP_BO_TILED_16 | OMAP_BO_TILED_32) 50 51 union omap_gem_size { 52 uint32_t bytes; /* (for non-tiled formats) */ 53 struct { 54 uint16_t width; 55 uint16_t height; 56 } tiled; /* (for tiled formats) */ 57 }; 58 59 struct drm_omap_gem_new { 60 union omap_gem_size size; /* in */ 61 uint32_t flags; /* in */ 62 uint32_t handle; /* out */ 63 uint32_t __pad; 64 }; 65 66 /* mask of operations: */ 67 enum omap_gem_op { 68 OMAP_GEM_READ = 0x01, 69 OMAP_GEM_WRITE = 0x02, 70 }; 71 72 struct drm_omap_gem_cpu_prep { 73 uint32_t handle; /* buffer handle (in) */ 74 uint32_t op; /* mask of omap_gem_op (in) */ 75 }; 76 77 struct drm_omap_gem_cpu_fini { 78 uint32_t handle; /* buffer handle (in) */ 79 uint32_t op; /* mask of omap_gem_op (in) */ 80 /* TODO maybe here we pass down info about what regions are touched 81 * by sw so we can be clever about cache ops? For now a placeholder, 82 * set to zero and we just do full buffer flush.. 83 */ 84 uint32_t nregions; 85 uint32_t __pad; 86 }; 87 88 struct drm_omap_gem_info { 89 uint32_t handle; /* buffer handle (in) */ 90 uint32_t pad; 91 uint64_t offset; /* mmap offset (out) */ 92 /* note: in case of tiled buffers, the user virtual size can be 93 * different from the physical size (ie. how many pages are needed 94 * to back the object) which is returned in DRM_IOCTL_GEM_OPEN.. 95 * This size here is the one that should be used if you want to 96 * mmap() the buffer: 97 */ 98 uint32_t size; /* virtual size for mmap'ing (out) */ 99 uint32_t __pad; 100 }; 101 102 #define DRM_OMAP_GET_PARAM 0x00 103 #define DRM_OMAP_SET_PARAM 0x01 104 /* placeholder for plugin-api 105 #define DRM_OMAP_GET_BASE 0x02 106 */ 107 #define DRM_OMAP_GEM_NEW 0x03 108 #define DRM_OMAP_GEM_CPU_PREP 0x04 109 #define DRM_OMAP_GEM_CPU_FINI 0x05 110 #define DRM_OMAP_GEM_INFO 0x06 111 #define DRM_OMAP_NUM_IOCTLS 0x07 112 113 #define DRM_IOCTL_OMAP_GET_PARAM DRM_IOWR(DRM_COMMAND_BASE + DRM_OMAP_GET_PARAM, struct drm_omap_param) 114 #define DRM_IOCTL_OMAP_SET_PARAM DRM_IOW (DRM_COMMAND_BASE + DRM_OMAP_SET_PARAM, struct drm_omap_param) 115 /* placeholder for plugin-api 116 #define DRM_IOCTL_OMAP_GET_BASE DRM_IOWR(DRM_COMMAND_BASE + DRM_OMAP_GET_BASE, struct drm_omap_get_base) 117 */ 118 #define DRM_IOCTL_OMAP_GEM_NEW DRM_IOWR(DRM_COMMAND_BASE + DRM_OMAP_GEM_NEW, struct drm_omap_gem_new) 119 #define DRM_IOCTL_OMAP_GEM_CPU_PREP DRM_IOW (DRM_COMMAND_BASE + DRM_OMAP_GEM_CPU_PREP, struct drm_omap_gem_cpu_prep) 120 #define DRM_IOCTL_OMAP_GEM_CPU_FINI DRM_IOW (DRM_COMMAND_BASE + DRM_OMAP_GEM_CPU_FINI, struct drm_omap_gem_cpu_fini) 121 #define DRM_IOCTL_OMAP_GEM_INFO DRM_IOWR(DRM_COMMAND_BASE + DRM_OMAP_GEM_INFO, struct drm_omap_gem_info) 122 123 #endif /* __OMAP_DRM_H__ */ 124
