Thierry Reding | d6a4c2c | 2012-12-01 10:30:38 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright © 2012, 2013 Thierry Reding |
| 3 | * Copyright © 2013 Erik Faye-Lund |
| 4 | * Copyright © 2014 NVIDIA Corporation |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 7 | * copy of this software and associated documentation files (the "Software"), |
| 8 | * to deal in the Software without restriction, including without limitation |
| 9 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 10 | * and/or sell copies of the Software, and to permit persons to whom the |
| 11 | * Software is furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in |
| 14 | * all copies or substantial portions of the Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 19 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| 20 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| 21 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| 22 | * OTHER DEALINGS IN THE SOFTWARE. |
| 23 | */ |
| 24 | |
| 25 | #ifdef HAVE_CONFIG_H |
| 26 | # include "config.h" |
| 27 | #endif |
| 28 | |
| 29 | #include <errno.h> |
| 30 | #include <fcntl.h> |
| 31 | #include <string.h> |
| 32 | #include <unistd.h> |
| 33 | |
| 34 | #include <sys/mman.h> |
| 35 | |
| 36 | #include <xf86drm.h> |
| 37 | |
| 38 | #include <tegra_drm.h> |
| 39 | |
| 40 | #include "private.h" |
| 41 | |
| 42 | static void drm_tegra_bo_free(struct drm_tegra_bo *bo) |
| 43 | { |
| 44 | struct drm_tegra *drm = bo->drm; |
| 45 | struct drm_gem_close args; |
| 46 | |
| 47 | if (bo->map) |
| 48 | munmap(bo->map, bo->size); |
| 49 | |
| 50 | memset(&args, 0, sizeof(args)); |
| 51 | args.handle = bo->handle; |
| 52 | |
| 53 | drmIoctl(drm->fd, DRM_IOCTL_GEM_CLOSE, &args); |
| 54 | |
| 55 | free(bo); |
| 56 | } |
| 57 | |
| 58 | static int drm_tegra_wrap(struct drm_tegra **drmp, int fd, bool close) |
| 59 | { |
| 60 | struct drm_tegra *drm; |
| 61 | |
| 62 | if (fd < 0 || !drmp) |
| 63 | return -EINVAL; |
| 64 | |
| 65 | drm = calloc(1, sizeof(*drm)); |
| 66 | if (!drm) |
| 67 | return -ENOMEM; |
| 68 | |
| 69 | drm->close = close; |
| 70 | drm->fd = fd; |
| 71 | |
| 72 | *drmp = drm; |
| 73 | |
| 74 | return 0; |
| 75 | } |
| 76 | |
Thierry Reding | d6a4c2c | 2012-12-01 10:30:38 +0100 | [diff] [blame] | 77 | int drm_tegra_new(struct drm_tegra **drmp, int fd) |
| 78 | { |
| 79 | bool supported = false; |
| 80 | drmVersionPtr version; |
| 81 | |
| 82 | version = drmGetVersion(fd); |
| 83 | if (!version) |
| 84 | return -ENOMEM; |
| 85 | |
| 86 | if (!strncmp(version->name, "tegra", version->name_len)) |
| 87 | supported = true; |
| 88 | |
| 89 | drmFreeVersion(version); |
| 90 | |
| 91 | if (!supported) |
| 92 | return -ENOTSUP; |
| 93 | |
| 94 | return drm_tegra_wrap(drmp, fd, false); |
| 95 | } |
| 96 | |
Thierry Reding | d6a4c2c | 2012-12-01 10:30:38 +0100 | [diff] [blame] | 97 | void drm_tegra_close(struct drm_tegra *drm) |
| 98 | { |
| 99 | if (!drm) |
| 100 | return; |
| 101 | |
| 102 | if (drm->close) |
| 103 | close(drm->fd); |
| 104 | |
| 105 | free(drm); |
| 106 | } |
| 107 | |
Thierry Reding | d6a4c2c | 2012-12-01 10:30:38 +0100 | [diff] [blame] | 108 | int drm_tegra_bo_new(struct drm_tegra_bo **bop, struct drm_tegra *drm, |
| 109 | uint32_t flags, uint32_t size) |
| 110 | { |
| 111 | struct drm_tegra_gem_create args; |
| 112 | struct drm_tegra_bo *bo; |
| 113 | int err; |
| 114 | |
| 115 | if (!drm || size == 0 || !bop) |
| 116 | return -EINVAL; |
| 117 | |
| 118 | bo = calloc(1, sizeof(*bo)); |
| 119 | if (!bo) |
| 120 | return -ENOMEM; |
| 121 | |
| 122 | atomic_set(&bo->ref, 1); |
| 123 | bo->flags = flags; |
| 124 | bo->size = size; |
| 125 | bo->drm = drm; |
| 126 | |
| 127 | memset(&args, 0, sizeof(args)); |
| 128 | args.flags = flags; |
| 129 | args.size = size; |
| 130 | |
| 131 | err = drmCommandWriteRead(drm->fd, DRM_TEGRA_GEM_CREATE, &args, |
| 132 | sizeof(args)); |
| 133 | if (err < 0) { |
| 134 | err = -errno; |
| 135 | free(bo); |
| 136 | return err; |
| 137 | } |
| 138 | |
| 139 | bo->handle = args.handle; |
| 140 | |
| 141 | *bop = bo; |
| 142 | |
| 143 | return 0; |
| 144 | } |
| 145 | |
Thierry Reding | d6a4c2c | 2012-12-01 10:30:38 +0100 | [diff] [blame] | 146 | int drm_tegra_bo_wrap(struct drm_tegra_bo **bop, struct drm_tegra *drm, |
| 147 | uint32_t handle, uint32_t flags, uint32_t size) |
| 148 | { |
| 149 | struct drm_tegra_bo *bo; |
| 150 | |
| 151 | if (!drm || !bop) |
| 152 | return -EINVAL; |
| 153 | |
| 154 | bo = calloc(1, sizeof(*bo)); |
| 155 | if (!bo) |
| 156 | return -ENOMEM; |
| 157 | |
| 158 | atomic_set(&bo->ref, 1); |
| 159 | bo->handle = handle; |
| 160 | bo->flags = flags; |
| 161 | bo->size = size; |
| 162 | bo->drm = drm; |
| 163 | |
| 164 | *bop = bo; |
| 165 | |
| 166 | return 0; |
| 167 | } |
| 168 | |
Thierry Reding | d6a4c2c | 2012-12-01 10:30:38 +0100 | [diff] [blame] | 169 | struct drm_tegra_bo *drm_tegra_bo_ref(struct drm_tegra_bo *bo) |
| 170 | { |
| 171 | if (bo) |
| 172 | atomic_inc(&bo->ref); |
| 173 | |
| 174 | return bo; |
| 175 | } |
| 176 | |
Thierry Reding | d6a4c2c | 2012-12-01 10:30:38 +0100 | [diff] [blame] | 177 | void drm_tegra_bo_unref(struct drm_tegra_bo *bo) |
| 178 | { |
| 179 | if (bo && atomic_dec_and_test(&bo->ref)) |
| 180 | drm_tegra_bo_free(bo); |
| 181 | } |
| 182 | |
Thierry Reding | d6a4c2c | 2012-12-01 10:30:38 +0100 | [diff] [blame] | 183 | int drm_tegra_bo_get_handle(struct drm_tegra_bo *bo, uint32_t *handle) |
| 184 | { |
| 185 | if (!bo || !handle) |
| 186 | return -EINVAL; |
| 187 | |
| 188 | *handle = bo->handle; |
| 189 | |
| 190 | return 0; |
| 191 | } |
| 192 | |
Thierry Reding | d6a4c2c | 2012-12-01 10:30:38 +0100 | [diff] [blame] | 193 | int drm_tegra_bo_map(struct drm_tegra_bo *bo, void **ptr) |
| 194 | { |
| 195 | struct drm_tegra *drm = bo->drm; |
| 196 | |
| 197 | if (!bo->map) { |
| 198 | struct drm_tegra_gem_mmap args; |
| 199 | int err; |
| 200 | |
| 201 | memset(&args, 0, sizeof(args)); |
| 202 | args.handle = bo->handle; |
| 203 | |
| 204 | err = drmCommandWriteRead(drm->fd, DRM_TEGRA_GEM_MMAP, &args, |
| 205 | sizeof(args)); |
| 206 | if (err < 0) |
| 207 | return -errno; |
| 208 | |
| 209 | bo->offset = args.offset; |
| 210 | |
| 211 | bo->map = mmap(0, bo->size, PROT_READ | PROT_WRITE, MAP_SHARED, |
| 212 | drm->fd, bo->offset); |
| 213 | if (bo->map == MAP_FAILED) { |
| 214 | bo->map = NULL; |
| 215 | return -errno; |
| 216 | } |
| 217 | } |
| 218 | |
| 219 | if (ptr) |
| 220 | *ptr = bo->map; |
| 221 | |
| 222 | return 0; |
| 223 | } |
| 224 | |
Thierry Reding | d6a4c2c | 2012-12-01 10:30:38 +0100 | [diff] [blame] | 225 | int drm_tegra_bo_unmap(struct drm_tegra_bo *bo) |
| 226 | { |
| 227 | if (!bo) |
| 228 | return -EINVAL; |
| 229 | |
| 230 | if (!bo->map) |
| 231 | return 0; |
| 232 | |
| 233 | if (munmap(bo->map, bo->size)) |
| 234 | return -errno; |
| 235 | |
| 236 | bo->map = NULL; |
| 237 | |
| 238 | return 0; |
| 239 | } |
Thierry Reding | d3ad65d | 2014-11-27 15:31:34 +0100 | [diff] [blame] | 240 | |
Thierry Reding | d3ad65d | 2014-11-27 15:31:34 +0100 | [diff] [blame] | 241 | int drm_tegra_bo_get_flags(struct drm_tegra_bo *bo, uint32_t *flags) |
| 242 | { |
| 243 | struct drm_tegra_gem_get_flags args; |
| 244 | struct drm_tegra *drm = bo->drm; |
| 245 | int err; |
| 246 | |
| 247 | if (!bo) |
| 248 | return -EINVAL; |
| 249 | |
| 250 | memset(&args, 0, sizeof(args)); |
| 251 | args.handle = bo->handle; |
| 252 | |
| 253 | err = drmCommandWriteRead(drm->fd, DRM_TEGRA_GEM_GET_FLAGS, &args, |
| 254 | sizeof(args)); |
| 255 | if (err < 0) |
| 256 | return -errno; |
| 257 | |
| 258 | if (flags) |
| 259 | *flags = args.flags; |
| 260 | |
| 261 | return 0; |
| 262 | } |
| 263 | |
Thierry Reding | d3ad65d | 2014-11-27 15:31:34 +0100 | [diff] [blame] | 264 | int drm_tegra_bo_set_flags(struct drm_tegra_bo *bo, uint32_t flags) |
| 265 | { |
| 266 | struct drm_tegra_gem_get_flags args; |
| 267 | struct drm_tegra *drm = bo->drm; |
| 268 | int err; |
| 269 | |
| 270 | if (!bo) |
| 271 | return -EINVAL; |
| 272 | |
| 273 | memset(&args, 0, sizeof(args)); |
| 274 | args.handle = bo->handle; |
| 275 | args.flags = flags; |
| 276 | |
| 277 | err = drmCommandWriteRead(drm->fd, DRM_TEGRA_GEM_SET_FLAGS, &args, |
| 278 | sizeof(args)); |
| 279 | if (err < 0) |
| 280 | return -errno; |
| 281 | |
| 282 | return 0; |
| 283 | } |
Thierry Reding | f99522e | 2014-11-27 15:32:43 +0100 | [diff] [blame] | 284 | |
Thierry Reding | f99522e | 2014-11-27 15:32:43 +0100 | [diff] [blame] | 285 | int drm_tegra_bo_get_tiling(struct drm_tegra_bo *bo, |
| 286 | struct drm_tegra_bo_tiling *tiling) |
| 287 | { |
| 288 | struct drm_tegra_gem_get_tiling args; |
| 289 | struct drm_tegra *drm = bo->drm; |
| 290 | int err; |
| 291 | |
| 292 | if (!bo) |
| 293 | return -EINVAL; |
| 294 | |
| 295 | memset(&args, 0, sizeof(args)); |
| 296 | args.handle = bo->handle; |
| 297 | |
| 298 | err = drmCommandWriteRead(drm->fd, DRM_TEGRA_GEM_GET_TILING, &args, |
| 299 | sizeof(args)); |
| 300 | if (err < 0) |
| 301 | return -errno; |
| 302 | |
| 303 | if (tiling) { |
| 304 | tiling->mode = args.mode; |
| 305 | tiling->value = args.value; |
| 306 | } |
| 307 | |
| 308 | return 0; |
| 309 | } |
| 310 | |
Thierry Reding | f99522e | 2014-11-27 15:32:43 +0100 | [diff] [blame] | 311 | int drm_tegra_bo_set_tiling(struct drm_tegra_bo *bo, |
| 312 | const struct drm_tegra_bo_tiling *tiling) |
| 313 | { |
| 314 | struct drm_tegra_gem_set_tiling args; |
| 315 | struct drm_tegra *drm = bo->drm; |
| 316 | int err; |
| 317 | |
| 318 | if (!bo) |
| 319 | return -EINVAL; |
| 320 | |
| 321 | memset(&args, 0, sizeof(args)); |
| 322 | args.handle = bo->handle; |
| 323 | args.mode = tiling->mode; |
| 324 | args.value = tiling->value; |
| 325 | |
| 326 | err = drmCommandWriteRead(drm->fd, DRM_TEGRA_GEM_SET_TILING, &args, |
| 327 | sizeof(args)); |
| 328 | if (err < 0) |
| 329 | return -errno; |
| 330 | |
| 331 | return 0; |
| 332 | } |