Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1 | /************************************************************************** |
| 2 | * |
| 3 | * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA |
| 4 | * All Rights Reserved. |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 7 | * copy of this software and associated documentation files (the |
| 8 | * "Software"), to deal in the Software without restriction, including |
| 9 | * without limitation the rights to use, copy, modify, merge, publish, |
| 10 | * distribute, sub license, and/or sell copies of the Software, and to |
| 11 | * permit persons to whom the Software is furnished to do so, subject to |
| 12 | * the following conditions: |
| 13 | * |
| 14 | * The above copyright notice and this permission notice (including the |
| 15 | * next paragraph) shall be included in all copies or substantial portions |
| 16 | * of the Software. |
| 17 | * |
| 18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 20 | * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL |
| 21 | * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, |
| 22 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
| 23 | * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE |
| 24 | * USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 25 | * |
| 26 | **************************************************************************/ |
| 27 | |
| 28 | #include "vmwgfx_drv.h" |
| 29 | #include "vmwgfx_drm.h" |
| 30 | #include "ttm/ttm_object.h" |
| 31 | #include "ttm/ttm_placement.h" |
| 32 | #include "drmP.h" |
| 33 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 34 | struct vmw_user_context { |
| 35 | struct ttm_base_object base; |
| 36 | struct vmw_resource res; |
| 37 | }; |
| 38 | |
| 39 | struct vmw_user_surface { |
| 40 | struct ttm_base_object base; |
| 41 | struct vmw_surface srf; |
Thomas Hellstrom | 414ee50 | 2011-10-07 15:23:06 +0200 | [diff] [blame] | 42 | uint32_t size; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 43 | }; |
| 44 | |
| 45 | struct vmw_user_dma_buffer { |
| 46 | struct ttm_base_object base; |
| 47 | struct vmw_dma_buffer dma; |
| 48 | }; |
| 49 | |
| 50 | struct vmw_bo_user_rep { |
| 51 | uint32_t handle; |
| 52 | uint64_t map_handle; |
| 53 | }; |
| 54 | |
| 55 | struct vmw_stream { |
| 56 | struct vmw_resource res; |
| 57 | uint32_t stream_id; |
| 58 | }; |
| 59 | |
| 60 | struct vmw_user_stream { |
| 61 | struct ttm_base_object base; |
| 62 | struct vmw_stream stream; |
| 63 | }; |
| 64 | |
Thomas Hellstrom | 5bb39e8 | 2011-10-04 20:13:33 +0200 | [diff] [blame] | 65 | struct vmw_surface_offset { |
| 66 | uint32_t face; |
| 67 | uint32_t mip; |
| 68 | uint32_t bo_offset; |
| 69 | }; |
| 70 | |
Thomas Hellstrom | 414ee50 | 2011-10-07 15:23:06 +0200 | [diff] [blame] | 71 | |
| 72 | static uint64_t vmw_user_context_size; |
| 73 | static uint64_t vmw_user_surface_size; |
| 74 | static uint64_t vmw_user_stream_size; |
| 75 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 76 | static inline struct vmw_dma_buffer * |
| 77 | vmw_dma_buffer(struct ttm_buffer_object *bo) |
| 78 | { |
| 79 | return container_of(bo, struct vmw_dma_buffer, base); |
| 80 | } |
| 81 | |
| 82 | static inline struct vmw_user_dma_buffer * |
| 83 | vmw_user_dma_buffer(struct ttm_buffer_object *bo) |
| 84 | { |
| 85 | struct vmw_dma_buffer *vmw_bo = vmw_dma_buffer(bo); |
| 86 | return container_of(vmw_bo, struct vmw_user_dma_buffer, dma); |
| 87 | } |
| 88 | |
| 89 | struct vmw_resource *vmw_resource_reference(struct vmw_resource *res) |
| 90 | { |
| 91 | kref_get(&res->kref); |
| 92 | return res; |
| 93 | } |
| 94 | |
Thomas Hellstrom | 5bb39e8 | 2011-10-04 20:13:33 +0200 | [diff] [blame] | 95 | |
| 96 | /** |
| 97 | * vmw_resource_release_id - release a resource id to the id manager. |
| 98 | * |
| 99 | * @res: Pointer to the resource. |
| 100 | * |
| 101 | * Release the resource id to the resource id manager and set it to -1 |
| 102 | */ |
| 103 | static void vmw_resource_release_id(struct vmw_resource *res) |
| 104 | { |
| 105 | struct vmw_private *dev_priv = res->dev_priv; |
| 106 | |
| 107 | write_lock(&dev_priv->resource_lock); |
| 108 | if (res->id != -1) |
| 109 | idr_remove(res->idr, res->id); |
| 110 | res->id = -1; |
| 111 | write_unlock(&dev_priv->resource_lock); |
| 112 | } |
| 113 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 114 | static void vmw_resource_release(struct kref *kref) |
| 115 | { |
| 116 | struct vmw_resource *res = |
| 117 | container_of(kref, struct vmw_resource, kref); |
| 118 | struct vmw_private *dev_priv = res->dev_priv; |
Thomas Hellstrom | 5bb39e8 | 2011-10-04 20:13:33 +0200 | [diff] [blame] | 119 | int id = res->id; |
| 120 | struct idr *idr = res->idr; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 121 | |
Thomas Hellstrom | 5bb39e8 | 2011-10-04 20:13:33 +0200 | [diff] [blame] | 122 | res->avail = false; |
| 123 | if (res->remove_from_lists != NULL) |
| 124 | res->remove_from_lists(res); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 125 | write_unlock(&dev_priv->resource_lock); |
| 126 | |
| 127 | if (likely(res->hw_destroy != NULL)) |
| 128 | res->hw_destroy(res); |
| 129 | |
| 130 | if (res->res_free != NULL) |
| 131 | res->res_free(res); |
| 132 | else |
| 133 | kfree(res); |
| 134 | |
| 135 | write_lock(&dev_priv->resource_lock); |
Thomas Hellstrom | 5bb39e8 | 2011-10-04 20:13:33 +0200 | [diff] [blame] | 136 | |
| 137 | if (id != -1) |
| 138 | idr_remove(idr, id); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 139 | } |
| 140 | |
| 141 | void vmw_resource_unreference(struct vmw_resource **p_res) |
| 142 | { |
| 143 | struct vmw_resource *res = *p_res; |
| 144 | struct vmw_private *dev_priv = res->dev_priv; |
| 145 | |
| 146 | *p_res = NULL; |
| 147 | write_lock(&dev_priv->resource_lock); |
| 148 | kref_put(&res->kref, vmw_resource_release); |
| 149 | write_unlock(&dev_priv->resource_lock); |
| 150 | } |
| 151 | |
Thomas Hellstrom | 5bb39e8 | 2011-10-04 20:13:33 +0200 | [diff] [blame] | 152 | |
| 153 | /** |
| 154 | * vmw_resource_alloc_id - release a resource id to the id manager. |
| 155 | * |
| 156 | * @dev_priv: Pointer to the device private structure. |
| 157 | * @res: Pointer to the resource. |
| 158 | * |
| 159 | * Allocate the lowest free resource from the resource manager, and set |
| 160 | * @res->id to that id. Returns 0 on success and -ENOMEM on failure. |
| 161 | */ |
| 162 | static int vmw_resource_alloc_id(struct vmw_private *dev_priv, |
| 163 | struct vmw_resource *res) |
| 164 | { |
| 165 | int ret; |
| 166 | |
| 167 | BUG_ON(res->id != -1); |
| 168 | |
| 169 | do { |
| 170 | if (unlikely(idr_pre_get(res->idr, GFP_KERNEL) == 0)) |
| 171 | return -ENOMEM; |
| 172 | |
| 173 | write_lock(&dev_priv->resource_lock); |
| 174 | ret = idr_get_new_above(res->idr, res, 1, &res->id); |
| 175 | write_unlock(&dev_priv->resource_lock); |
| 176 | |
| 177 | } while (ret == -EAGAIN); |
| 178 | |
| 179 | return ret; |
| 180 | } |
| 181 | |
| 182 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 183 | static int vmw_resource_init(struct vmw_private *dev_priv, |
| 184 | struct vmw_resource *res, |
| 185 | struct idr *idr, |
| 186 | enum ttm_object_type obj_type, |
Thomas Hellstrom | 5bb39e8 | 2011-10-04 20:13:33 +0200 | [diff] [blame] | 187 | bool delay_id, |
| 188 | void (*res_free) (struct vmw_resource *res), |
| 189 | void (*remove_from_lists) |
| 190 | (struct vmw_resource *res)) |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 191 | { |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 192 | kref_init(&res->kref); |
| 193 | res->hw_destroy = NULL; |
| 194 | res->res_free = res_free; |
Thomas Hellstrom | 5bb39e8 | 2011-10-04 20:13:33 +0200 | [diff] [blame] | 195 | res->remove_from_lists = remove_from_lists; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 196 | res->res_type = obj_type; |
| 197 | res->idr = idr; |
| 198 | res->avail = false; |
| 199 | res->dev_priv = dev_priv; |
Thomas Hellstrom | e2fa3a7 | 2011-10-04 20:13:30 +0200 | [diff] [blame] | 200 | INIT_LIST_HEAD(&res->query_head); |
Thomas Hellstrom | f18c884 | 2011-10-04 20:13:31 +0200 | [diff] [blame] | 201 | INIT_LIST_HEAD(&res->validate_head); |
Thomas Hellstrom | 5bb39e8 | 2011-10-04 20:13:33 +0200 | [diff] [blame] | 202 | res->id = -1; |
| 203 | if (delay_id) |
| 204 | return 0; |
| 205 | else |
| 206 | return vmw_resource_alloc_id(dev_priv, res); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 207 | } |
| 208 | |
| 209 | /** |
| 210 | * vmw_resource_activate |
| 211 | * |
| 212 | * @res: Pointer to the newly created resource |
| 213 | * @hw_destroy: Destroy function. NULL if none. |
| 214 | * |
| 215 | * Activate a resource after the hardware has been made aware of it. |
| 216 | * Set tye destroy function to @destroy. Typically this frees the |
| 217 | * resource and destroys the hardware resources associated with it. |
| 218 | * Activate basically means that the function vmw_resource_lookup will |
| 219 | * find it. |
| 220 | */ |
| 221 | |
| 222 | static void vmw_resource_activate(struct vmw_resource *res, |
| 223 | void (*hw_destroy) (struct vmw_resource *)) |
| 224 | { |
| 225 | struct vmw_private *dev_priv = res->dev_priv; |
| 226 | |
| 227 | write_lock(&dev_priv->resource_lock); |
| 228 | res->avail = true; |
| 229 | res->hw_destroy = hw_destroy; |
| 230 | write_unlock(&dev_priv->resource_lock); |
| 231 | } |
| 232 | |
| 233 | struct vmw_resource *vmw_resource_lookup(struct vmw_private *dev_priv, |
| 234 | struct idr *idr, int id) |
| 235 | { |
| 236 | struct vmw_resource *res; |
| 237 | |
| 238 | read_lock(&dev_priv->resource_lock); |
| 239 | res = idr_find(idr, id); |
| 240 | if (res && res->avail) |
| 241 | kref_get(&res->kref); |
| 242 | else |
| 243 | res = NULL; |
| 244 | read_unlock(&dev_priv->resource_lock); |
| 245 | |
| 246 | if (unlikely(res == NULL)) |
| 247 | return NULL; |
| 248 | |
| 249 | return res; |
| 250 | } |
| 251 | |
| 252 | /** |
| 253 | * Context management: |
| 254 | */ |
| 255 | |
| 256 | static void vmw_hw_context_destroy(struct vmw_resource *res) |
| 257 | { |
| 258 | |
| 259 | struct vmw_private *dev_priv = res->dev_priv; |
| 260 | struct { |
| 261 | SVGA3dCmdHeader header; |
| 262 | SVGA3dCmdDestroyContext body; |
Thomas Hellstrom | e2fa3a7 | 2011-10-04 20:13:30 +0200 | [diff] [blame] | 263 | } *cmd; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 264 | |
Thomas Hellstrom | e2fa3a7 | 2011-10-04 20:13:30 +0200 | [diff] [blame] | 265 | |
| 266 | vmw_execbuf_release_pinned_bo(dev_priv, true, res->id); |
| 267 | |
| 268 | cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 269 | if (unlikely(cmd == NULL)) { |
| 270 | DRM_ERROR("Failed reserving FIFO space for surface " |
| 271 | "destruction.\n"); |
| 272 | return; |
| 273 | } |
| 274 | |
| 275 | cmd->header.id = cpu_to_le32(SVGA_3D_CMD_CONTEXT_DESTROY); |
| 276 | cmd->header.size = cpu_to_le32(sizeof(cmd->body)); |
| 277 | cmd->body.cid = cpu_to_le32(res->id); |
| 278 | |
| 279 | vmw_fifo_commit(dev_priv, sizeof(*cmd)); |
Thomas Hellstrom | 05730b3 | 2011-08-31 07:42:52 +0000 | [diff] [blame] | 280 | vmw_3d_resource_dec(dev_priv, false); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 281 | } |
| 282 | |
| 283 | static int vmw_context_init(struct vmw_private *dev_priv, |
| 284 | struct vmw_resource *res, |
| 285 | void (*res_free) (struct vmw_resource *res)) |
| 286 | { |
| 287 | int ret; |
| 288 | |
| 289 | struct { |
| 290 | SVGA3dCmdHeader header; |
| 291 | SVGA3dCmdDefineContext body; |
| 292 | } *cmd; |
| 293 | |
| 294 | ret = vmw_resource_init(dev_priv, res, &dev_priv->context_idr, |
Thomas Hellstrom | 5bb39e8 | 2011-10-04 20:13:33 +0200 | [diff] [blame] | 295 | VMW_RES_CONTEXT, false, res_free, NULL); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 296 | |
| 297 | if (unlikely(ret != 0)) { |
Thomas Hellstrom | 5bb39e8 | 2011-10-04 20:13:33 +0200 | [diff] [blame] | 298 | DRM_ERROR("Failed to allocate a resource id.\n"); |
| 299 | goto out_early; |
| 300 | } |
| 301 | |
| 302 | if (unlikely(res->id >= SVGA3D_MAX_CONTEXT_IDS)) { |
| 303 | DRM_ERROR("Out of hw context ids.\n"); |
| 304 | vmw_resource_unreference(&res); |
| 305 | return -ENOMEM; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 306 | } |
| 307 | |
| 308 | cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); |
| 309 | if (unlikely(cmd == NULL)) { |
| 310 | DRM_ERROR("Fifo reserve failed.\n"); |
| 311 | vmw_resource_unreference(&res); |
| 312 | return -ENOMEM; |
| 313 | } |
| 314 | |
| 315 | cmd->header.id = cpu_to_le32(SVGA_3D_CMD_CONTEXT_DEFINE); |
| 316 | cmd->header.size = cpu_to_le32(sizeof(cmd->body)); |
| 317 | cmd->body.cid = cpu_to_le32(res->id); |
| 318 | |
| 319 | vmw_fifo_commit(dev_priv, sizeof(*cmd)); |
Thomas Hellstrom | 05730b3 | 2011-08-31 07:42:52 +0000 | [diff] [blame] | 320 | (void) vmw_3d_resource_inc(dev_priv, false); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 321 | vmw_resource_activate(res, vmw_hw_context_destroy); |
| 322 | return 0; |
Thomas Hellstrom | 5bb39e8 | 2011-10-04 20:13:33 +0200 | [diff] [blame] | 323 | |
| 324 | out_early: |
| 325 | if (res_free == NULL) |
| 326 | kfree(res); |
| 327 | else |
| 328 | res_free(res); |
| 329 | return ret; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 330 | } |
| 331 | |
| 332 | struct vmw_resource *vmw_context_alloc(struct vmw_private *dev_priv) |
| 333 | { |
| 334 | struct vmw_resource *res = kmalloc(sizeof(*res), GFP_KERNEL); |
| 335 | int ret; |
| 336 | |
| 337 | if (unlikely(res == NULL)) |
| 338 | return NULL; |
| 339 | |
| 340 | ret = vmw_context_init(dev_priv, res, NULL); |
| 341 | return (ret == 0) ? res : NULL; |
| 342 | } |
| 343 | |
| 344 | /** |
| 345 | * User-space context management: |
| 346 | */ |
| 347 | |
| 348 | static void vmw_user_context_free(struct vmw_resource *res) |
| 349 | { |
| 350 | struct vmw_user_context *ctx = |
| 351 | container_of(res, struct vmw_user_context, res); |
Thomas Hellstrom | 414ee50 | 2011-10-07 15:23:06 +0200 | [diff] [blame] | 352 | struct vmw_private *dev_priv = res->dev_priv; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 353 | |
| 354 | kfree(ctx); |
Thomas Hellstrom | 414ee50 | 2011-10-07 15:23:06 +0200 | [diff] [blame] | 355 | ttm_mem_global_free(vmw_mem_glob(dev_priv), |
| 356 | vmw_user_context_size); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 357 | } |
| 358 | |
| 359 | /** |
| 360 | * This function is called when user space has no more references on the |
| 361 | * base object. It releases the base-object's reference on the resource object. |
| 362 | */ |
| 363 | |
| 364 | static void vmw_user_context_base_release(struct ttm_base_object **p_base) |
| 365 | { |
| 366 | struct ttm_base_object *base = *p_base; |
| 367 | struct vmw_user_context *ctx = |
| 368 | container_of(base, struct vmw_user_context, base); |
| 369 | struct vmw_resource *res = &ctx->res; |
| 370 | |
| 371 | *p_base = NULL; |
| 372 | vmw_resource_unreference(&res); |
| 373 | } |
| 374 | |
| 375 | int vmw_context_destroy_ioctl(struct drm_device *dev, void *data, |
| 376 | struct drm_file *file_priv) |
| 377 | { |
| 378 | struct vmw_private *dev_priv = vmw_priv(dev); |
| 379 | struct vmw_resource *res; |
| 380 | struct vmw_user_context *ctx; |
| 381 | struct drm_vmw_context_arg *arg = (struct drm_vmw_context_arg *)data; |
| 382 | struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; |
| 383 | int ret = 0; |
| 384 | |
| 385 | res = vmw_resource_lookup(dev_priv, &dev_priv->context_idr, arg->cid); |
| 386 | if (unlikely(res == NULL)) |
| 387 | return -EINVAL; |
| 388 | |
| 389 | if (res->res_free != &vmw_user_context_free) { |
| 390 | ret = -EINVAL; |
| 391 | goto out; |
| 392 | } |
| 393 | |
| 394 | ctx = container_of(res, struct vmw_user_context, res); |
| 395 | if (ctx->base.tfile != tfile && !ctx->base.shareable) { |
| 396 | ret = -EPERM; |
| 397 | goto out; |
| 398 | } |
| 399 | |
| 400 | ttm_ref_object_base_unref(tfile, ctx->base.hash.key, TTM_REF_USAGE); |
| 401 | out: |
| 402 | vmw_resource_unreference(&res); |
| 403 | return ret; |
| 404 | } |
| 405 | |
| 406 | int vmw_context_define_ioctl(struct drm_device *dev, void *data, |
| 407 | struct drm_file *file_priv) |
| 408 | { |
| 409 | struct vmw_private *dev_priv = vmw_priv(dev); |
Thomas Hellstrom | 414ee50 | 2011-10-07 15:23:06 +0200 | [diff] [blame] | 410 | struct vmw_user_context *ctx; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 411 | struct vmw_resource *res; |
| 412 | struct vmw_resource *tmp; |
| 413 | struct drm_vmw_context_arg *arg = (struct drm_vmw_context_arg *)data; |
| 414 | struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; |
Thomas Hellstrom | 414ee50 | 2011-10-07 15:23:06 +0200 | [diff] [blame] | 415 | struct vmw_master *vmaster = vmw_master(file_priv->master); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 416 | int ret; |
| 417 | |
Thomas Hellstrom | 414ee50 | 2011-10-07 15:23:06 +0200 | [diff] [blame] | 418 | |
| 419 | /* |
| 420 | * Approximate idr memory usage with 128 bytes. It will be limited |
| 421 | * by maximum number_of contexts anyway. |
| 422 | */ |
| 423 | |
| 424 | if (unlikely(vmw_user_context_size == 0)) |
| 425 | vmw_user_context_size = ttm_round_pot(sizeof(*ctx)) + 128; |
| 426 | |
| 427 | ret = ttm_read_lock(&vmaster->lock, true); |
| 428 | if (unlikely(ret != 0)) |
| 429 | return ret; |
| 430 | |
| 431 | ret = ttm_mem_global_alloc(vmw_mem_glob(dev_priv), |
| 432 | vmw_user_context_size, |
| 433 | false, true); |
| 434 | if (unlikely(ret != 0)) { |
| 435 | if (ret != -ERESTARTSYS) |
| 436 | DRM_ERROR("Out of graphics memory for context" |
| 437 | " creation.\n"); |
| 438 | goto out_unlock; |
| 439 | } |
| 440 | |
| 441 | ctx = kmalloc(sizeof(*ctx), GFP_KERNEL); |
| 442 | if (unlikely(ctx == NULL)) { |
| 443 | ttm_mem_global_free(vmw_mem_glob(dev_priv), |
| 444 | vmw_user_context_size); |
| 445 | ret = -ENOMEM; |
| 446 | goto out_unlock; |
| 447 | } |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 448 | |
| 449 | res = &ctx->res; |
| 450 | ctx->base.shareable = false; |
| 451 | ctx->base.tfile = NULL; |
| 452 | |
Thomas Hellstrom | 414ee50 | 2011-10-07 15:23:06 +0200 | [diff] [blame] | 453 | /* |
| 454 | * From here on, the destructor takes over resource freeing. |
| 455 | */ |
| 456 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 457 | ret = vmw_context_init(dev_priv, res, vmw_user_context_free); |
| 458 | if (unlikely(ret != 0)) |
Thomas Hellstrom | 414ee50 | 2011-10-07 15:23:06 +0200 | [diff] [blame] | 459 | goto out_unlock; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 460 | |
| 461 | tmp = vmw_resource_reference(&ctx->res); |
| 462 | ret = ttm_base_object_init(tfile, &ctx->base, false, VMW_RES_CONTEXT, |
| 463 | &vmw_user_context_base_release, NULL); |
| 464 | |
| 465 | if (unlikely(ret != 0)) { |
| 466 | vmw_resource_unreference(&tmp); |
| 467 | goto out_err; |
| 468 | } |
| 469 | |
| 470 | arg->cid = res->id; |
| 471 | out_err: |
| 472 | vmw_resource_unreference(&res); |
Thomas Hellstrom | 414ee50 | 2011-10-07 15:23:06 +0200 | [diff] [blame] | 473 | out_unlock: |
| 474 | ttm_read_unlock(&vmaster->lock); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 475 | return ret; |
| 476 | |
| 477 | } |
| 478 | |
| 479 | int vmw_context_check(struct vmw_private *dev_priv, |
| 480 | struct ttm_object_file *tfile, |
Thomas Hellstrom | be38ab6 | 2011-08-31 07:42:54 +0000 | [diff] [blame] | 481 | int id, |
| 482 | struct vmw_resource **p_res) |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 483 | { |
| 484 | struct vmw_resource *res; |
| 485 | int ret = 0; |
| 486 | |
| 487 | read_lock(&dev_priv->resource_lock); |
| 488 | res = idr_find(&dev_priv->context_idr, id); |
| 489 | if (res && res->avail) { |
| 490 | struct vmw_user_context *ctx = |
| 491 | container_of(res, struct vmw_user_context, res); |
| 492 | if (ctx->base.tfile != tfile && !ctx->base.shareable) |
| 493 | ret = -EPERM; |
Thomas Hellstrom | be38ab6 | 2011-08-31 07:42:54 +0000 | [diff] [blame] | 494 | if (p_res) |
| 495 | *p_res = vmw_resource_reference(res); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 496 | } else |
| 497 | ret = -EINVAL; |
| 498 | read_unlock(&dev_priv->resource_lock); |
| 499 | |
| 500 | return ret; |
| 501 | } |
| 502 | |
Thomas Hellstrom | 5bb39e8 | 2011-10-04 20:13:33 +0200 | [diff] [blame] | 503 | struct vmw_bpp { |
| 504 | uint8_t bpp; |
| 505 | uint8_t s_bpp; |
| 506 | }; |
| 507 | |
| 508 | /* |
| 509 | * Size table for the supported SVGA3D surface formats. It consists of |
| 510 | * two values. The bpp value and the s_bpp value which is short for |
| 511 | * "stride bits per pixel" The values are given in such a way that the |
| 512 | * minimum stride for the image is calculated using |
| 513 | * |
| 514 | * min_stride = w*s_bpp |
| 515 | * |
| 516 | * and the total memory requirement for the image is |
| 517 | * |
| 518 | * h*min_stride*bpp/s_bpp |
| 519 | * |
| 520 | */ |
| 521 | static const struct vmw_bpp vmw_sf_bpp[] = { |
| 522 | [SVGA3D_FORMAT_INVALID] = {0, 0}, |
| 523 | [SVGA3D_X8R8G8B8] = {32, 32}, |
| 524 | [SVGA3D_A8R8G8B8] = {32, 32}, |
| 525 | [SVGA3D_R5G6B5] = {16, 16}, |
| 526 | [SVGA3D_X1R5G5B5] = {16, 16}, |
| 527 | [SVGA3D_A1R5G5B5] = {16, 16}, |
| 528 | [SVGA3D_A4R4G4B4] = {16, 16}, |
| 529 | [SVGA3D_Z_D32] = {32, 32}, |
| 530 | [SVGA3D_Z_D16] = {16, 16}, |
| 531 | [SVGA3D_Z_D24S8] = {32, 32}, |
| 532 | [SVGA3D_Z_D15S1] = {16, 16}, |
| 533 | [SVGA3D_LUMINANCE8] = {8, 8}, |
| 534 | [SVGA3D_LUMINANCE4_ALPHA4] = {8, 8}, |
| 535 | [SVGA3D_LUMINANCE16] = {16, 16}, |
| 536 | [SVGA3D_LUMINANCE8_ALPHA8] = {16, 16}, |
| 537 | [SVGA3D_DXT1] = {4, 16}, |
| 538 | [SVGA3D_DXT2] = {8, 32}, |
| 539 | [SVGA3D_DXT3] = {8, 32}, |
| 540 | [SVGA3D_DXT4] = {8, 32}, |
| 541 | [SVGA3D_DXT5] = {8, 32}, |
| 542 | [SVGA3D_BUMPU8V8] = {16, 16}, |
| 543 | [SVGA3D_BUMPL6V5U5] = {16, 16}, |
| 544 | [SVGA3D_BUMPX8L8V8U8] = {32, 32}, |
| 545 | [SVGA3D_ARGB_S10E5] = {16, 16}, |
| 546 | [SVGA3D_ARGB_S23E8] = {32, 32}, |
| 547 | [SVGA3D_A2R10G10B10] = {32, 32}, |
| 548 | [SVGA3D_V8U8] = {16, 16}, |
| 549 | [SVGA3D_Q8W8V8U8] = {32, 32}, |
| 550 | [SVGA3D_CxV8U8] = {16, 16}, |
| 551 | [SVGA3D_X8L8V8U8] = {32, 32}, |
| 552 | [SVGA3D_A2W10V10U10] = {32, 32}, |
| 553 | [SVGA3D_ALPHA8] = {8, 8}, |
| 554 | [SVGA3D_R_S10E5] = {16, 16}, |
| 555 | [SVGA3D_R_S23E8] = {32, 32}, |
| 556 | [SVGA3D_RG_S10E5] = {16, 16}, |
| 557 | [SVGA3D_RG_S23E8] = {32, 32}, |
| 558 | [SVGA3D_BUFFER] = {8, 8}, |
| 559 | [SVGA3D_Z_D24X8] = {32, 32}, |
| 560 | [SVGA3D_V16U16] = {32, 32}, |
| 561 | [SVGA3D_G16R16] = {32, 32}, |
| 562 | [SVGA3D_A16B16G16R16] = {64, 64}, |
| 563 | [SVGA3D_UYVY] = {12, 12}, |
| 564 | [SVGA3D_YUY2] = {12, 12}, |
| 565 | [SVGA3D_NV12] = {12, 8}, |
| 566 | [SVGA3D_AYUV] = {32, 32}, |
| 567 | [SVGA3D_BC4_UNORM] = {4, 16}, |
| 568 | [SVGA3D_BC5_UNORM] = {8, 32}, |
| 569 | [SVGA3D_Z_DF16] = {16, 16}, |
| 570 | [SVGA3D_Z_DF24] = {24, 24}, |
| 571 | [SVGA3D_Z_D24S8_INT] = {32, 32} |
| 572 | }; |
| 573 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 574 | |
| 575 | /** |
| 576 | * Surface management. |
| 577 | */ |
| 578 | |
Thomas Hellstrom | 5bb39e8 | 2011-10-04 20:13:33 +0200 | [diff] [blame] | 579 | struct vmw_surface_dma { |
| 580 | SVGA3dCmdHeader header; |
| 581 | SVGA3dCmdSurfaceDMA body; |
| 582 | SVGA3dCopyBox cb; |
| 583 | SVGA3dCmdSurfaceDMASuffix suffix; |
| 584 | }; |
| 585 | |
| 586 | struct vmw_surface_define { |
| 587 | SVGA3dCmdHeader header; |
| 588 | SVGA3dCmdDefineSurface body; |
| 589 | }; |
| 590 | |
| 591 | struct vmw_surface_destroy { |
| 592 | SVGA3dCmdHeader header; |
| 593 | SVGA3dCmdDestroySurface body; |
| 594 | }; |
| 595 | |
| 596 | |
| 597 | /** |
| 598 | * vmw_surface_dma_size - Compute fifo size for a dma command. |
| 599 | * |
| 600 | * @srf: Pointer to a struct vmw_surface |
| 601 | * |
| 602 | * Computes the required size for a surface dma command for backup or |
| 603 | * restoration of the surface represented by @srf. |
| 604 | */ |
| 605 | static inline uint32_t vmw_surface_dma_size(const struct vmw_surface *srf) |
| 606 | { |
| 607 | return srf->num_sizes * sizeof(struct vmw_surface_dma); |
| 608 | } |
| 609 | |
| 610 | |
| 611 | /** |
| 612 | * vmw_surface_define_size - Compute fifo size for a surface define command. |
| 613 | * |
| 614 | * @srf: Pointer to a struct vmw_surface |
| 615 | * |
| 616 | * Computes the required size for a surface define command for the definition |
| 617 | * of the surface represented by @srf. |
| 618 | */ |
| 619 | static inline uint32_t vmw_surface_define_size(const struct vmw_surface *srf) |
| 620 | { |
| 621 | return sizeof(struct vmw_surface_define) + srf->num_sizes * |
| 622 | sizeof(SVGA3dSize); |
| 623 | } |
| 624 | |
| 625 | |
| 626 | /** |
| 627 | * vmw_surface_destroy_size - Compute fifo size for a surface destroy command. |
| 628 | * |
| 629 | * Computes the required size for a surface destroy command for the destruction |
| 630 | * of a hw surface. |
| 631 | */ |
| 632 | static inline uint32_t vmw_surface_destroy_size(void) |
| 633 | { |
| 634 | return sizeof(struct vmw_surface_destroy); |
| 635 | } |
| 636 | |
| 637 | /** |
| 638 | * vmw_surface_destroy_encode - Encode a surface_destroy command. |
| 639 | * |
| 640 | * @id: The surface id |
| 641 | * @cmd_space: Pointer to memory area in which the commands should be encoded. |
| 642 | */ |
| 643 | static void vmw_surface_destroy_encode(uint32_t id, |
| 644 | void *cmd_space) |
| 645 | { |
| 646 | struct vmw_surface_destroy *cmd = (struct vmw_surface_destroy *) |
| 647 | cmd_space; |
| 648 | |
| 649 | cmd->header.id = SVGA_3D_CMD_SURFACE_DESTROY; |
| 650 | cmd->header.size = sizeof(cmd->body); |
| 651 | cmd->body.sid = id; |
| 652 | } |
| 653 | |
| 654 | /** |
| 655 | * vmw_surface_define_encode - Encode a surface_define command. |
| 656 | * |
| 657 | * @srf: Pointer to a struct vmw_surface object. |
| 658 | * @cmd_space: Pointer to memory area in which the commands should be encoded. |
| 659 | */ |
| 660 | static void vmw_surface_define_encode(const struct vmw_surface *srf, |
| 661 | void *cmd_space) |
| 662 | { |
| 663 | struct vmw_surface_define *cmd = (struct vmw_surface_define *) |
| 664 | cmd_space; |
| 665 | struct drm_vmw_size *src_size; |
| 666 | SVGA3dSize *cmd_size; |
| 667 | uint32_t cmd_len; |
| 668 | int i; |
| 669 | |
| 670 | cmd_len = sizeof(cmd->body) + srf->num_sizes * sizeof(SVGA3dSize); |
| 671 | |
| 672 | cmd->header.id = SVGA_3D_CMD_SURFACE_DEFINE; |
| 673 | cmd->header.size = cmd_len; |
| 674 | cmd->body.sid = srf->res.id; |
| 675 | cmd->body.surfaceFlags = srf->flags; |
| 676 | cmd->body.format = cpu_to_le32(srf->format); |
| 677 | for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) |
| 678 | cmd->body.face[i].numMipLevels = srf->mip_levels[i]; |
| 679 | |
| 680 | cmd += 1; |
| 681 | cmd_size = (SVGA3dSize *) cmd; |
| 682 | src_size = srf->sizes; |
| 683 | |
| 684 | for (i = 0; i < srf->num_sizes; ++i, cmd_size++, src_size++) { |
| 685 | cmd_size->width = src_size->width; |
| 686 | cmd_size->height = src_size->height; |
| 687 | cmd_size->depth = src_size->depth; |
| 688 | } |
| 689 | } |
| 690 | |
| 691 | |
| 692 | /** |
| 693 | * vmw_surface_dma_encode - Encode a surface_dma command. |
| 694 | * |
| 695 | * @srf: Pointer to a struct vmw_surface object. |
| 696 | * @cmd_space: Pointer to memory area in which the commands should be encoded. |
| 697 | * @ptr: Pointer to an SVGAGuestPtr indicating where the surface contents |
| 698 | * should be placed or read from. |
| 699 | * @to_surface: Boolean whether to DMA to the surface or from the surface. |
| 700 | */ |
| 701 | static void vmw_surface_dma_encode(struct vmw_surface *srf, |
| 702 | void *cmd_space, |
| 703 | const SVGAGuestPtr *ptr, |
| 704 | bool to_surface) |
| 705 | { |
| 706 | uint32_t i; |
| 707 | uint32_t bpp = vmw_sf_bpp[srf->format].bpp; |
| 708 | uint32_t stride_bpp = vmw_sf_bpp[srf->format].s_bpp; |
| 709 | struct vmw_surface_dma *cmd = (struct vmw_surface_dma *)cmd_space; |
| 710 | |
| 711 | for (i = 0; i < srf->num_sizes; ++i) { |
| 712 | SVGA3dCmdHeader *header = &cmd->header; |
| 713 | SVGA3dCmdSurfaceDMA *body = &cmd->body; |
| 714 | SVGA3dCopyBox *cb = &cmd->cb; |
| 715 | SVGA3dCmdSurfaceDMASuffix *suffix = &cmd->suffix; |
| 716 | const struct vmw_surface_offset *cur_offset = &srf->offsets[i]; |
| 717 | const struct drm_vmw_size *cur_size = &srf->sizes[i]; |
| 718 | |
| 719 | header->id = SVGA_3D_CMD_SURFACE_DMA; |
| 720 | header->size = sizeof(*body) + sizeof(*cb) + sizeof(*suffix); |
| 721 | |
| 722 | body->guest.ptr = *ptr; |
| 723 | body->guest.ptr.offset += cur_offset->bo_offset; |
| 724 | body->guest.pitch = (cur_size->width * stride_bpp + 7) >> 3; |
| 725 | body->host.sid = srf->res.id; |
| 726 | body->host.face = cur_offset->face; |
| 727 | body->host.mipmap = cur_offset->mip; |
| 728 | body->transfer = ((to_surface) ? SVGA3D_WRITE_HOST_VRAM : |
| 729 | SVGA3D_READ_HOST_VRAM); |
| 730 | cb->x = 0; |
| 731 | cb->y = 0; |
| 732 | cb->z = 0; |
| 733 | cb->srcx = 0; |
| 734 | cb->srcy = 0; |
| 735 | cb->srcz = 0; |
| 736 | cb->w = cur_size->width; |
| 737 | cb->h = cur_size->height; |
| 738 | cb->d = cur_size->depth; |
| 739 | |
| 740 | suffix->suffixSize = sizeof(*suffix); |
| 741 | suffix->maximumOffset = body->guest.pitch*cur_size->height* |
| 742 | cur_size->depth*bpp / stride_bpp; |
| 743 | suffix->flags.discard = 0; |
| 744 | suffix->flags.unsynchronized = 0; |
| 745 | suffix->flags.reserved = 0; |
| 746 | ++cmd; |
| 747 | } |
| 748 | }; |
| 749 | |
| 750 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 751 | static void vmw_hw_surface_destroy(struct vmw_resource *res) |
| 752 | { |
| 753 | |
| 754 | struct vmw_private *dev_priv = res->dev_priv; |
Thomas Hellstrom | 5bb39e8 | 2011-10-04 20:13:33 +0200 | [diff] [blame] | 755 | struct vmw_surface *srf; |
| 756 | void *cmd; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 757 | |
Thomas Hellstrom | 5bb39e8 | 2011-10-04 20:13:33 +0200 | [diff] [blame] | 758 | if (res->id != -1) { |
| 759 | |
| 760 | cmd = vmw_fifo_reserve(dev_priv, vmw_surface_destroy_size()); |
| 761 | if (unlikely(cmd == NULL)) { |
| 762 | DRM_ERROR("Failed reserving FIFO space for surface " |
| 763 | "destruction.\n"); |
| 764 | return; |
| 765 | } |
| 766 | |
| 767 | vmw_surface_destroy_encode(res->id, cmd); |
| 768 | vmw_fifo_commit(dev_priv, vmw_surface_destroy_size()); |
| 769 | |
| 770 | /* |
| 771 | * used_memory_size_atomic, or separate lock |
| 772 | * to avoid taking dev_priv::cmdbuf_mutex in |
| 773 | * the destroy path. |
| 774 | */ |
| 775 | |
| 776 | mutex_lock(&dev_priv->cmdbuf_mutex); |
| 777 | srf = container_of(res, struct vmw_surface, res); |
| 778 | dev_priv->used_memory_size -= srf->backup_size; |
| 779 | mutex_unlock(&dev_priv->cmdbuf_mutex); |
| 780 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 781 | } |
Thomas Hellstrom | 05730b3 | 2011-08-31 07:42:52 +0000 | [diff] [blame] | 782 | vmw_3d_resource_dec(dev_priv, false); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 783 | } |
| 784 | |
| 785 | void vmw_surface_res_free(struct vmw_resource *res) |
| 786 | { |
| 787 | struct vmw_surface *srf = container_of(res, struct vmw_surface, res); |
| 788 | |
Thomas Hellstrom | 5bb39e8 | 2011-10-04 20:13:33 +0200 | [diff] [blame] | 789 | if (srf->backup) |
| 790 | ttm_bo_unref(&srf->backup); |
| 791 | kfree(srf->offsets); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 792 | kfree(srf->sizes); |
| 793 | kfree(srf->snooper.image); |
| 794 | kfree(srf); |
| 795 | } |
| 796 | |
Thomas Hellstrom | 5bb39e8 | 2011-10-04 20:13:33 +0200 | [diff] [blame] | 797 | |
| 798 | /** |
| 799 | * vmw_surface_do_validate - make a surface available to the device. |
| 800 | * |
| 801 | * @dev_priv: Pointer to a device private struct. |
| 802 | * @srf: Pointer to a struct vmw_surface. |
| 803 | * |
| 804 | * If the surface doesn't have a hw id, allocate one, and optionally |
| 805 | * DMA the backed up surface contents to the device. |
| 806 | * |
| 807 | * Returns -EBUSY if there wasn't sufficient device resources to |
| 808 | * complete the validation. Retry after freeing up resources. |
| 809 | * |
| 810 | * May return other errors if the kernel is out of guest resources. |
| 811 | */ |
| 812 | int vmw_surface_do_validate(struct vmw_private *dev_priv, |
| 813 | struct vmw_surface *srf) |
| 814 | { |
| 815 | struct vmw_resource *res = &srf->res; |
| 816 | struct list_head val_list; |
| 817 | struct ttm_validate_buffer val_buf; |
| 818 | uint32_t submit_size; |
| 819 | uint8_t *cmd; |
| 820 | int ret; |
| 821 | |
| 822 | if (likely(res->id != -1)) |
| 823 | return 0; |
| 824 | |
| 825 | if (unlikely(dev_priv->used_memory_size + srf->backup_size >= |
| 826 | dev_priv->memory_size)) |
| 827 | return -EBUSY; |
| 828 | |
| 829 | /* |
| 830 | * Reserve- and validate the backup DMA bo. |
| 831 | */ |
| 832 | |
| 833 | if (srf->backup) { |
| 834 | INIT_LIST_HEAD(&val_list); |
| 835 | val_buf.bo = ttm_bo_reference(srf->backup); |
| 836 | val_buf.new_sync_obj_arg = (void *)((unsigned long) |
| 837 | DRM_VMW_FENCE_FLAG_EXEC); |
| 838 | list_add_tail(&val_buf.head, &val_list); |
| 839 | ret = ttm_eu_reserve_buffers(&val_list); |
| 840 | if (unlikely(ret != 0)) |
| 841 | goto out_no_reserve; |
| 842 | |
| 843 | ret = ttm_bo_validate(srf->backup, &vmw_srf_placement, |
| 844 | true, false, false); |
| 845 | if (unlikely(ret != 0)) |
| 846 | goto out_no_validate; |
| 847 | } |
| 848 | |
| 849 | /* |
| 850 | * Alloc id for the resource. |
| 851 | */ |
| 852 | |
| 853 | ret = vmw_resource_alloc_id(dev_priv, res); |
| 854 | if (unlikely(ret != 0)) { |
| 855 | DRM_ERROR("Failed to allocate a surface id.\n"); |
| 856 | goto out_no_id; |
| 857 | } |
| 858 | if (unlikely(res->id >= SVGA3D_MAX_SURFACE_IDS)) { |
| 859 | ret = -EBUSY; |
| 860 | goto out_no_fifo; |
| 861 | } |
| 862 | |
| 863 | |
| 864 | /* |
| 865 | * Encode surface define- and dma commands. |
| 866 | */ |
| 867 | |
| 868 | submit_size = vmw_surface_define_size(srf); |
| 869 | if (srf->backup) |
| 870 | submit_size += vmw_surface_dma_size(srf); |
| 871 | |
| 872 | cmd = vmw_fifo_reserve(dev_priv, submit_size); |
| 873 | if (unlikely(cmd == NULL)) { |
| 874 | DRM_ERROR("Failed reserving FIFO space for surface " |
| 875 | "validation.\n"); |
| 876 | ret = -ENOMEM; |
| 877 | goto out_no_fifo; |
| 878 | } |
| 879 | |
| 880 | vmw_surface_define_encode(srf, cmd); |
| 881 | if (srf->backup) { |
| 882 | SVGAGuestPtr ptr; |
| 883 | |
| 884 | cmd += vmw_surface_define_size(srf); |
| 885 | vmw_bo_get_guest_ptr(srf->backup, &ptr); |
| 886 | vmw_surface_dma_encode(srf, cmd, &ptr, true); |
| 887 | } |
| 888 | |
| 889 | vmw_fifo_commit(dev_priv, submit_size); |
| 890 | |
| 891 | /* |
| 892 | * Create a fence object and fence the backup buffer. |
| 893 | */ |
| 894 | |
| 895 | if (srf->backup) { |
| 896 | struct vmw_fence_obj *fence; |
| 897 | |
| 898 | (void) vmw_execbuf_fence_commands(NULL, dev_priv, |
| 899 | &fence, NULL); |
| 900 | ttm_eu_fence_buffer_objects(&val_list, fence); |
| 901 | if (likely(fence != NULL)) |
| 902 | vmw_fence_obj_unreference(&fence); |
| 903 | ttm_bo_unref(&val_buf.bo); |
| 904 | ttm_bo_unref(&srf->backup); |
| 905 | } |
| 906 | |
| 907 | /* |
| 908 | * Surface memory usage accounting. |
| 909 | */ |
| 910 | |
| 911 | dev_priv->used_memory_size += srf->backup_size; |
| 912 | |
| 913 | return 0; |
| 914 | |
| 915 | out_no_fifo: |
| 916 | vmw_resource_release_id(res); |
| 917 | out_no_id: |
| 918 | out_no_validate: |
| 919 | if (srf->backup) |
| 920 | ttm_eu_backoff_reservation(&val_list); |
| 921 | out_no_reserve: |
| 922 | if (srf->backup) |
| 923 | ttm_bo_unref(&val_buf.bo); |
| 924 | return ret; |
| 925 | } |
| 926 | |
| 927 | /** |
| 928 | * vmw_surface_evict - Evict a hw surface. |
| 929 | * |
| 930 | * @dev_priv: Pointer to a device private struct. |
| 931 | * @srf: Pointer to a struct vmw_surface |
| 932 | * |
| 933 | * DMA the contents of a hw surface to a backup guest buffer object, |
| 934 | * and destroy the hw surface, releasing its id. |
| 935 | */ |
| 936 | int vmw_surface_evict(struct vmw_private *dev_priv, |
| 937 | struct vmw_surface *srf) |
| 938 | { |
| 939 | struct vmw_resource *res = &srf->res; |
| 940 | struct list_head val_list; |
| 941 | struct ttm_validate_buffer val_buf; |
| 942 | uint32_t submit_size; |
| 943 | uint8_t *cmd; |
| 944 | int ret; |
| 945 | struct vmw_fence_obj *fence; |
| 946 | SVGAGuestPtr ptr; |
| 947 | |
| 948 | BUG_ON(res->id == -1); |
| 949 | |
| 950 | /* |
| 951 | * Create a surface backup buffer object. |
| 952 | */ |
| 953 | |
| 954 | if (!srf->backup) { |
| 955 | ret = ttm_bo_create(&dev_priv->bdev, srf->backup_size, |
| 956 | ttm_bo_type_device, |
| 957 | &vmw_srf_placement, 0, 0, true, |
| 958 | NULL, &srf->backup); |
| 959 | if (unlikely(ret != 0)) |
| 960 | return ret; |
| 961 | } |
| 962 | |
| 963 | /* |
| 964 | * Reserve- and validate the backup DMA bo. |
| 965 | */ |
| 966 | |
| 967 | INIT_LIST_HEAD(&val_list); |
| 968 | val_buf.bo = ttm_bo_reference(srf->backup); |
| 969 | val_buf.new_sync_obj_arg = (void *)(unsigned long) |
| 970 | DRM_VMW_FENCE_FLAG_EXEC; |
| 971 | list_add_tail(&val_buf.head, &val_list); |
| 972 | ret = ttm_eu_reserve_buffers(&val_list); |
| 973 | if (unlikely(ret != 0)) |
| 974 | goto out_no_reserve; |
| 975 | |
| 976 | ret = ttm_bo_validate(srf->backup, &vmw_srf_placement, |
| 977 | true, false, false); |
| 978 | if (unlikely(ret != 0)) |
| 979 | goto out_no_validate; |
| 980 | |
| 981 | |
| 982 | /* |
| 983 | * Encode the dma- and surface destroy commands. |
| 984 | */ |
| 985 | |
| 986 | submit_size = vmw_surface_dma_size(srf) + vmw_surface_destroy_size(); |
| 987 | cmd = vmw_fifo_reserve(dev_priv, submit_size); |
| 988 | if (unlikely(cmd == NULL)) { |
| 989 | DRM_ERROR("Failed reserving FIFO space for surface " |
| 990 | "eviction.\n"); |
| 991 | ret = -ENOMEM; |
| 992 | goto out_no_fifo; |
| 993 | } |
| 994 | |
| 995 | vmw_bo_get_guest_ptr(srf->backup, &ptr); |
| 996 | vmw_surface_dma_encode(srf, cmd, &ptr, false); |
| 997 | cmd += vmw_surface_dma_size(srf); |
| 998 | vmw_surface_destroy_encode(res->id, cmd); |
| 999 | vmw_fifo_commit(dev_priv, submit_size); |
| 1000 | |
| 1001 | /* |
| 1002 | * Surface memory usage accounting. |
| 1003 | */ |
| 1004 | |
| 1005 | dev_priv->used_memory_size -= srf->backup_size; |
| 1006 | |
| 1007 | /* |
| 1008 | * Create a fence object and fence the DMA buffer. |
| 1009 | */ |
| 1010 | |
| 1011 | (void) vmw_execbuf_fence_commands(NULL, dev_priv, |
| 1012 | &fence, NULL); |
| 1013 | ttm_eu_fence_buffer_objects(&val_list, fence); |
| 1014 | if (likely(fence != NULL)) |
| 1015 | vmw_fence_obj_unreference(&fence); |
| 1016 | ttm_bo_unref(&val_buf.bo); |
| 1017 | |
| 1018 | /* |
| 1019 | * Release the surface ID. |
| 1020 | */ |
| 1021 | |
| 1022 | vmw_resource_release_id(res); |
| 1023 | |
| 1024 | return 0; |
| 1025 | |
| 1026 | out_no_fifo: |
| 1027 | out_no_validate: |
| 1028 | if (srf->backup) |
| 1029 | ttm_eu_backoff_reservation(&val_list); |
| 1030 | out_no_reserve: |
| 1031 | ttm_bo_unref(&val_buf.bo); |
| 1032 | ttm_bo_unref(&srf->backup); |
| 1033 | return ret; |
| 1034 | } |
| 1035 | |
| 1036 | |
| 1037 | /** |
| 1038 | * vmw_surface_validate - make a surface available to the device, evicting |
| 1039 | * other surfaces if needed. |
| 1040 | * |
| 1041 | * @dev_priv: Pointer to a device private struct. |
| 1042 | * @srf: Pointer to a struct vmw_surface. |
| 1043 | * |
| 1044 | * Try to validate a surface and if it fails due to limited device resources, |
| 1045 | * repeatedly try to evict other surfaces until the request can be |
| 1046 | * acommodated. |
| 1047 | * |
| 1048 | * May return errors if out of resources. |
| 1049 | */ |
| 1050 | int vmw_surface_validate(struct vmw_private *dev_priv, |
| 1051 | struct vmw_surface *srf) |
| 1052 | { |
| 1053 | int ret; |
| 1054 | struct vmw_surface *evict_srf; |
| 1055 | |
| 1056 | do { |
| 1057 | write_lock(&dev_priv->resource_lock); |
| 1058 | list_del_init(&srf->lru_head); |
| 1059 | write_unlock(&dev_priv->resource_lock); |
| 1060 | |
| 1061 | ret = vmw_surface_do_validate(dev_priv, srf); |
| 1062 | if (likely(ret != -EBUSY)) |
| 1063 | break; |
| 1064 | |
| 1065 | write_lock(&dev_priv->resource_lock); |
| 1066 | if (list_empty(&dev_priv->surface_lru)) { |
| 1067 | DRM_ERROR("Out of device memory for surfaces.\n"); |
| 1068 | ret = -EBUSY; |
| 1069 | write_unlock(&dev_priv->resource_lock); |
| 1070 | break; |
| 1071 | } |
| 1072 | |
| 1073 | evict_srf = vmw_surface_reference |
| 1074 | (list_first_entry(&dev_priv->surface_lru, |
| 1075 | struct vmw_surface, |
| 1076 | lru_head)); |
| 1077 | list_del_init(&evict_srf->lru_head); |
| 1078 | |
| 1079 | write_unlock(&dev_priv->resource_lock); |
| 1080 | (void) vmw_surface_evict(dev_priv, evict_srf); |
| 1081 | |
| 1082 | vmw_surface_unreference(&evict_srf); |
| 1083 | |
| 1084 | } while (1); |
| 1085 | |
| 1086 | if (unlikely(ret != 0 && srf->res.id != -1)) { |
| 1087 | write_lock(&dev_priv->resource_lock); |
| 1088 | list_add_tail(&srf->lru_head, &dev_priv->surface_lru); |
| 1089 | write_unlock(&dev_priv->resource_lock); |
| 1090 | } |
| 1091 | |
| 1092 | return ret; |
| 1093 | } |
| 1094 | |
| 1095 | |
| 1096 | /** |
| 1097 | * vmw_surface_remove_from_lists - Remove surface resources from lookup lists |
| 1098 | * |
| 1099 | * @res: Pointer to a struct vmw_resource embedded in a struct vmw_surface |
| 1100 | * |
| 1101 | * As part of the resource destruction, remove the surface from any |
| 1102 | * lookup lists. |
| 1103 | */ |
| 1104 | static void vmw_surface_remove_from_lists(struct vmw_resource *res) |
| 1105 | { |
| 1106 | struct vmw_surface *srf = container_of(res, struct vmw_surface, res); |
| 1107 | |
| 1108 | list_del_init(&srf->lru_head); |
| 1109 | } |
| 1110 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1111 | int vmw_surface_init(struct vmw_private *dev_priv, |
| 1112 | struct vmw_surface *srf, |
| 1113 | void (*res_free) (struct vmw_resource *res)) |
| 1114 | { |
| 1115 | int ret; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1116 | struct vmw_resource *res = &srf->res; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1117 | |
| 1118 | BUG_ON(res_free == NULL); |
Thomas Hellstrom | 5bb39e8 | 2011-10-04 20:13:33 +0200 | [diff] [blame] | 1119 | INIT_LIST_HEAD(&srf->lru_head); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1120 | ret = vmw_resource_init(dev_priv, res, &dev_priv->surface_idr, |
Thomas Hellstrom | 5bb39e8 | 2011-10-04 20:13:33 +0200 | [diff] [blame] | 1121 | VMW_RES_SURFACE, true, res_free, |
| 1122 | vmw_surface_remove_from_lists); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1123 | |
Thomas Hellstrom | 5bb39e8 | 2011-10-04 20:13:33 +0200 | [diff] [blame] | 1124 | if (unlikely(ret != 0)) |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1125 | res_free(res); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1126 | |
Thomas Hellstrom | 5bb39e8 | 2011-10-04 20:13:33 +0200 | [diff] [blame] | 1127 | /* |
| 1128 | * The surface won't be visible to hardware until a |
| 1129 | * surface validate. |
| 1130 | */ |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1131 | |
Thomas Hellstrom | 05730b3 | 2011-08-31 07:42:52 +0000 | [diff] [blame] | 1132 | (void) vmw_3d_resource_inc(dev_priv, false); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1133 | vmw_resource_activate(res, vmw_hw_surface_destroy); |
Thomas Hellstrom | 5bb39e8 | 2011-10-04 20:13:33 +0200 | [diff] [blame] | 1134 | return ret; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1135 | } |
| 1136 | |
| 1137 | static void vmw_user_surface_free(struct vmw_resource *res) |
| 1138 | { |
| 1139 | struct vmw_surface *srf = container_of(res, struct vmw_surface, res); |
| 1140 | struct vmw_user_surface *user_srf = |
| 1141 | container_of(srf, struct vmw_user_surface, srf); |
Thomas Hellstrom | 414ee50 | 2011-10-07 15:23:06 +0200 | [diff] [blame] | 1142 | struct vmw_private *dev_priv = srf->res.dev_priv; |
| 1143 | uint32_t size = user_srf->size; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1144 | |
Thomas Hellstrom | 5bb39e8 | 2011-10-04 20:13:33 +0200 | [diff] [blame] | 1145 | if (srf->backup) |
| 1146 | ttm_bo_unref(&srf->backup); |
| 1147 | kfree(srf->offsets); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1148 | kfree(srf->sizes); |
| 1149 | kfree(srf->snooper.image); |
| 1150 | kfree(user_srf); |
Thomas Hellstrom | 414ee50 | 2011-10-07 15:23:06 +0200 | [diff] [blame] | 1151 | ttm_mem_global_free(vmw_mem_glob(dev_priv), size); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1152 | } |
| 1153 | |
Thomas Hellstrom | 5bb39e8 | 2011-10-04 20:13:33 +0200 | [diff] [blame] | 1154 | /** |
| 1155 | * vmw_resource_unreserve - unreserve resources previously reserved for |
| 1156 | * command submission. |
| 1157 | * |
| 1158 | * @list_head: list of resources to unreserve. |
| 1159 | * |
| 1160 | * Currently only surfaces are considered, and unreserving a surface |
| 1161 | * means putting it back on the device's surface lru list, |
| 1162 | * so that it can be evicted if necessary. |
| 1163 | * This function traverses the resource list and |
| 1164 | * checks whether resources are surfaces, and in that case puts them back |
| 1165 | * on the device's surface LRU list. |
| 1166 | */ |
| 1167 | void vmw_resource_unreserve(struct list_head *list) |
| 1168 | { |
| 1169 | struct vmw_resource *res; |
| 1170 | struct vmw_surface *srf; |
| 1171 | rwlock_t *lock = NULL; |
| 1172 | |
| 1173 | list_for_each_entry(res, list, validate_head) { |
| 1174 | |
| 1175 | if (res->res_free != &vmw_surface_res_free && |
| 1176 | res->res_free != &vmw_user_surface_free) |
| 1177 | continue; |
| 1178 | |
| 1179 | if (unlikely(lock == NULL)) { |
| 1180 | lock = &res->dev_priv->resource_lock; |
| 1181 | write_lock(lock); |
| 1182 | } |
| 1183 | |
| 1184 | srf = container_of(res, struct vmw_surface, res); |
| 1185 | list_del_init(&srf->lru_head); |
| 1186 | list_add_tail(&srf->lru_head, &res->dev_priv->surface_lru); |
| 1187 | } |
| 1188 | |
| 1189 | if (lock != NULL) |
| 1190 | write_unlock(lock); |
| 1191 | } |
| 1192 | |
Jakob Bornecrantz | 551a669 | 2011-11-28 13:19:11 +0100 | [diff] [blame] | 1193 | /** |
| 1194 | * Helper function that looks either a surface or dmabuf. |
| 1195 | * |
| 1196 | * The pointer this pointed at by out_surf and out_buf needs to be null. |
| 1197 | */ |
| 1198 | int vmw_user_lookup_handle(struct vmw_private *dev_priv, |
| 1199 | struct ttm_object_file *tfile, |
| 1200 | uint32_t handle, |
| 1201 | struct vmw_surface **out_surf, |
| 1202 | struct vmw_dma_buffer **out_buf) |
| 1203 | { |
| 1204 | int ret; |
| 1205 | |
| 1206 | BUG_ON(*out_surf || *out_buf); |
| 1207 | |
| 1208 | ret = vmw_user_surface_lookup_handle(dev_priv, tfile, handle, out_surf); |
| 1209 | if (!ret) |
| 1210 | return 0; |
| 1211 | |
| 1212 | ret = vmw_user_dmabuf_lookup(tfile, handle, out_buf); |
| 1213 | return ret; |
| 1214 | } |
| 1215 | |
Thomas Hellstrom | 5bb39e8 | 2011-10-04 20:13:33 +0200 | [diff] [blame] | 1216 | |
Thomas Hellstrom | 7a73ba7 | 2009-12-22 16:53:41 +0100 | [diff] [blame] | 1217 | int vmw_user_surface_lookup_handle(struct vmw_private *dev_priv, |
| 1218 | struct ttm_object_file *tfile, |
| 1219 | uint32_t handle, struct vmw_surface **out) |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1220 | { |
| 1221 | struct vmw_resource *res; |
| 1222 | struct vmw_surface *srf; |
| 1223 | struct vmw_user_surface *user_srf; |
Thomas Hellstrom | 7a73ba7 | 2009-12-22 16:53:41 +0100 | [diff] [blame] | 1224 | struct ttm_base_object *base; |
| 1225 | int ret = -EINVAL; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1226 | |
Thomas Hellstrom | 7a73ba7 | 2009-12-22 16:53:41 +0100 | [diff] [blame] | 1227 | base = ttm_base_object_lookup(tfile, handle); |
| 1228 | if (unlikely(base == NULL)) |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1229 | return -EINVAL; |
| 1230 | |
Thomas Hellstrom | 7a73ba7 | 2009-12-22 16:53:41 +0100 | [diff] [blame] | 1231 | if (unlikely(base->object_type != VMW_RES_SURFACE)) |
| 1232 | goto out_bad_resource; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1233 | |
Thomas Hellstrom | 7a73ba7 | 2009-12-22 16:53:41 +0100 | [diff] [blame] | 1234 | user_srf = container_of(base, struct vmw_user_surface, base); |
| 1235 | srf = &user_srf->srf; |
| 1236 | res = &srf->res; |
| 1237 | |
| 1238 | read_lock(&dev_priv->resource_lock); |
| 1239 | |
| 1240 | if (!res->avail || res->res_free != &vmw_user_surface_free) { |
| 1241 | read_unlock(&dev_priv->resource_lock); |
| 1242 | goto out_bad_resource; |
| 1243 | } |
| 1244 | |
| 1245 | kref_get(&res->kref); |
| 1246 | read_unlock(&dev_priv->resource_lock); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1247 | |
| 1248 | *out = srf; |
Thomas Hellstrom | 7a73ba7 | 2009-12-22 16:53:41 +0100 | [diff] [blame] | 1249 | ret = 0; |
| 1250 | |
| 1251 | out_bad_resource: |
| 1252 | ttm_base_object_unref(&base); |
| 1253 | |
| 1254 | return ret; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1255 | } |
| 1256 | |
| 1257 | static void vmw_user_surface_base_release(struct ttm_base_object **p_base) |
| 1258 | { |
| 1259 | struct ttm_base_object *base = *p_base; |
| 1260 | struct vmw_user_surface *user_srf = |
| 1261 | container_of(base, struct vmw_user_surface, base); |
| 1262 | struct vmw_resource *res = &user_srf->srf.res; |
| 1263 | |
| 1264 | *p_base = NULL; |
| 1265 | vmw_resource_unreference(&res); |
| 1266 | } |
| 1267 | |
| 1268 | int vmw_surface_destroy_ioctl(struct drm_device *dev, void *data, |
| 1269 | struct drm_file *file_priv) |
| 1270 | { |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1271 | struct drm_vmw_surface_arg *arg = (struct drm_vmw_surface_arg *)data; |
| 1272 | struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1273 | |
Thomas Hellstrom | 7a73ba7 | 2009-12-22 16:53:41 +0100 | [diff] [blame] | 1274 | return ttm_ref_object_base_unref(tfile, arg->sid, TTM_REF_USAGE); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1275 | } |
| 1276 | |
| 1277 | int vmw_surface_define_ioctl(struct drm_device *dev, void *data, |
| 1278 | struct drm_file *file_priv) |
| 1279 | { |
| 1280 | struct vmw_private *dev_priv = vmw_priv(dev); |
Dan Carpenter | 0c5d370 | 2011-10-18 09:09:45 +0300 | [diff] [blame] | 1281 | struct vmw_user_surface *user_srf; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1282 | struct vmw_surface *srf; |
| 1283 | struct vmw_resource *res; |
| 1284 | struct vmw_resource *tmp; |
| 1285 | union drm_vmw_surface_create_arg *arg = |
| 1286 | (union drm_vmw_surface_create_arg *)data; |
| 1287 | struct drm_vmw_surface_create_req *req = &arg->req; |
| 1288 | struct drm_vmw_surface_arg *rep = &arg->rep; |
| 1289 | struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; |
| 1290 | struct drm_vmw_size __user *user_sizes; |
| 1291 | int ret; |
Thomas Hellstrom | 5bb39e8 | 2011-10-04 20:13:33 +0200 | [diff] [blame] | 1292 | int i, j; |
| 1293 | uint32_t cur_bo_offset; |
| 1294 | struct drm_vmw_size *cur_size; |
| 1295 | struct vmw_surface_offset *cur_offset; |
| 1296 | uint32_t stride_bpp; |
| 1297 | uint32_t bpp; |
Thomas Hellstrom | 414ee50 | 2011-10-07 15:23:06 +0200 | [diff] [blame] | 1298 | uint32_t num_sizes; |
| 1299 | uint32_t size; |
| 1300 | struct vmw_master *vmaster = vmw_master(file_priv->master); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1301 | |
Thomas Hellstrom | 414ee50 | 2011-10-07 15:23:06 +0200 | [diff] [blame] | 1302 | if (unlikely(vmw_user_surface_size == 0)) |
| 1303 | vmw_user_surface_size = ttm_round_pot(sizeof(*user_srf)) + |
| 1304 | 128; |
| 1305 | |
| 1306 | num_sizes = 0; |
| 1307 | for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) |
| 1308 | num_sizes += req->mip_levels[i]; |
| 1309 | |
| 1310 | if (num_sizes > DRM_VMW_MAX_SURFACE_FACES * |
| 1311 | DRM_VMW_MAX_MIP_LEVELS) |
| 1312 | return -EINVAL; |
| 1313 | |
| 1314 | size = vmw_user_surface_size + 128 + |
| 1315 | ttm_round_pot(num_sizes * sizeof(struct drm_vmw_size)) + |
| 1316 | ttm_round_pot(num_sizes * sizeof(struct vmw_surface_offset)); |
| 1317 | |
| 1318 | |
| 1319 | ret = ttm_read_lock(&vmaster->lock, true); |
| 1320 | if (unlikely(ret != 0)) |
| 1321 | return ret; |
| 1322 | |
| 1323 | ret = ttm_mem_global_alloc(vmw_mem_glob(dev_priv), |
| 1324 | size, false, true); |
| 1325 | if (unlikely(ret != 0)) { |
| 1326 | if (ret != -ERESTARTSYS) |
| 1327 | DRM_ERROR("Out of graphics memory for surface" |
| 1328 | " creation.\n"); |
| 1329 | goto out_unlock; |
| 1330 | } |
| 1331 | |
| 1332 | user_srf = kmalloc(sizeof(*user_srf), GFP_KERNEL); |
| 1333 | if (unlikely(user_srf == NULL)) { |
| 1334 | ret = -ENOMEM; |
| 1335 | goto out_no_user_srf; |
| 1336 | } |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1337 | |
| 1338 | srf = &user_srf->srf; |
| 1339 | res = &srf->res; |
| 1340 | |
| 1341 | srf->flags = req->flags; |
| 1342 | srf->format = req->format; |
Jakob Bornecrantz | a87897e | 2010-02-09 21:29:47 +0000 | [diff] [blame] | 1343 | srf->scanout = req->scanout; |
Thomas Hellstrom | 5bb39e8 | 2011-10-04 20:13:33 +0200 | [diff] [blame] | 1344 | srf->backup = NULL; |
| 1345 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1346 | memcpy(srf->mip_levels, req->mip_levels, sizeof(srf->mip_levels)); |
Thomas Hellstrom | 414ee50 | 2011-10-07 15:23:06 +0200 | [diff] [blame] | 1347 | srf->num_sizes = num_sizes; |
| 1348 | user_srf->size = size; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1349 | |
| 1350 | srf->sizes = kmalloc(srf->num_sizes * sizeof(*srf->sizes), GFP_KERNEL); |
| 1351 | if (unlikely(srf->sizes == NULL)) { |
| 1352 | ret = -ENOMEM; |
Thomas Hellstrom | 414ee50 | 2011-10-07 15:23:06 +0200 | [diff] [blame] | 1353 | goto out_no_sizes; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1354 | } |
Thomas Hellstrom | 5bb39e8 | 2011-10-04 20:13:33 +0200 | [diff] [blame] | 1355 | srf->offsets = kmalloc(srf->num_sizes * sizeof(*srf->offsets), |
| 1356 | GFP_KERNEL); |
| 1357 | if (unlikely(srf->sizes == NULL)) { |
| 1358 | ret = -ENOMEM; |
| 1359 | goto out_no_offsets; |
| 1360 | } |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1361 | |
| 1362 | user_sizes = (struct drm_vmw_size __user *)(unsigned long) |
| 1363 | req->size_addr; |
| 1364 | |
| 1365 | ret = copy_from_user(srf->sizes, user_sizes, |
| 1366 | srf->num_sizes * sizeof(*srf->sizes)); |
Dan Carpenter | 9b8eb4d | 2010-06-04 12:24:13 +0200 | [diff] [blame] | 1367 | if (unlikely(ret != 0)) { |
| 1368 | ret = -EFAULT; |
Thomas Hellstrom | 414ee50 | 2011-10-07 15:23:06 +0200 | [diff] [blame] | 1369 | goto out_no_copy; |
Dan Carpenter | 9b8eb4d | 2010-06-04 12:24:13 +0200 | [diff] [blame] | 1370 | } |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1371 | |
Thomas Hellstrom | 5bb39e8 | 2011-10-04 20:13:33 +0200 | [diff] [blame] | 1372 | cur_bo_offset = 0; |
| 1373 | cur_offset = srf->offsets; |
| 1374 | cur_size = srf->sizes; |
| 1375 | |
| 1376 | bpp = vmw_sf_bpp[srf->format].bpp; |
| 1377 | stride_bpp = vmw_sf_bpp[srf->format].s_bpp; |
| 1378 | |
| 1379 | for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) { |
| 1380 | for (j = 0; j < srf->mip_levels[i]; ++j) { |
| 1381 | uint32_t stride = |
| 1382 | (cur_size->width * stride_bpp + 7) >> 3; |
| 1383 | |
| 1384 | cur_offset->face = i; |
| 1385 | cur_offset->mip = j; |
| 1386 | cur_offset->bo_offset = cur_bo_offset; |
| 1387 | cur_bo_offset += stride * cur_size->height * |
| 1388 | cur_size->depth * bpp / stride_bpp; |
| 1389 | ++cur_offset; |
| 1390 | ++cur_size; |
| 1391 | } |
| 1392 | } |
| 1393 | srf->backup_size = cur_bo_offset; |
| 1394 | |
Jakob Bornecrantz | 5ffdb65 | 2010-01-30 03:38:08 +0000 | [diff] [blame] | 1395 | if (srf->scanout && |
Thomas Hellstrom | 50ec3b7 | 2010-01-13 22:28:37 +0100 | [diff] [blame] | 1396 | srf->num_sizes == 1 && |
| 1397 | srf->sizes[0].width == 64 && |
| 1398 | srf->sizes[0].height == 64 && |
| 1399 | srf->format == SVGA3D_A8R8G8B8) { |
| 1400 | |
Rakib Mullick | f35119d | 2011-07-25 17:12:56 -0700 | [diff] [blame] | 1401 | /* allocate image area and clear it */ |
| 1402 | srf->snooper.image = kzalloc(64 * 64 * 4, GFP_KERNEL); |
| 1403 | if (!srf->snooper.image) { |
Thomas Hellstrom | 50ec3b7 | 2010-01-13 22:28:37 +0100 | [diff] [blame] | 1404 | DRM_ERROR("Failed to allocate cursor_image\n"); |
| 1405 | ret = -ENOMEM; |
Thomas Hellstrom | 414ee50 | 2011-10-07 15:23:06 +0200 | [diff] [blame] | 1406 | goto out_no_copy; |
Thomas Hellstrom | 50ec3b7 | 2010-01-13 22:28:37 +0100 | [diff] [blame] | 1407 | } |
| 1408 | } else { |
| 1409 | srf->snooper.image = NULL; |
| 1410 | } |
| 1411 | srf->snooper.crtc = NULL; |
| 1412 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1413 | user_srf->base.shareable = false; |
| 1414 | user_srf->base.tfile = NULL; |
| 1415 | |
| 1416 | /** |
| 1417 | * From this point, the generic resource management functions |
| 1418 | * destroy the object on failure. |
| 1419 | */ |
| 1420 | |
| 1421 | ret = vmw_surface_init(dev_priv, srf, vmw_user_surface_free); |
| 1422 | if (unlikely(ret != 0)) |
Thomas Hellstrom | 414ee50 | 2011-10-07 15:23:06 +0200 | [diff] [blame] | 1423 | goto out_unlock; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1424 | |
| 1425 | tmp = vmw_resource_reference(&srf->res); |
| 1426 | ret = ttm_base_object_init(tfile, &user_srf->base, |
| 1427 | req->shareable, VMW_RES_SURFACE, |
| 1428 | &vmw_user_surface_base_release, NULL); |
| 1429 | |
| 1430 | if (unlikely(ret != 0)) { |
| 1431 | vmw_resource_unreference(&tmp); |
| 1432 | vmw_resource_unreference(&res); |
Thomas Hellstrom | 414ee50 | 2011-10-07 15:23:06 +0200 | [diff] [blame] | 1433 | goto out_unlock; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1434 | } |
| 1435 | |
Thomas Hellstrom | 7a73ba7 | 2009-12-22 16:53:41 +0100 | [diff] [blame] | 1436 | rep->sid = user_srf->base.hash.key; |
| 1437 | if (rep->sid == SVGA3D_INVALID_ID) |
| 1438 | DRM_ERROR("Created bad Surface ID.\n"); |
| 1439 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1440 | vmw_resource_unreference(&res); |
Thomas Hellstrom | 414ee50 | 2011-10-07 15:23:06 +0200 | [diff] [blame] | 1441 | |
| 1442 | ttm_read_unlock(&vmaster->lock); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1443 | return 0; |
Thomas Hellstrom | 414ee50 | 2011-10-07 15:23:06 +0200 | [diff] [blame] | 1444 | out_no_copy: |
Thomas Hellstrom | 5bb39e8 | 2011-10-04 20:13:33 +0200 | [diff] [blame] | 1445 | kfree(srf->offsets); |
| 1446 | out_no_offsets: |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1447 | kfree(srf->sizes); |
Thomas Hellstrom | 414ee50 | 2011-10-07 15:23:06 +0200 | [diff] [blame] | 1448 | out_no_sizes: |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1449 | kfree(user_srf); |
Thomas Hellstrom | 414ee50 | 2011-10-07 15:23:06 +0200 | [diff] [blame] | 1450 | out_no_user_srf: |
| 1451 | ttm_mem_global_free(vmw_mem_glob(dev_priv), size); |
| 1452 | out_unlock: |
| 1453 | ttm_read_unlock(&vmaster->lock); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1454 | return ret; |
| 1455 | } |
| 1456 | |
| 1457 | int vmw_surface_reference_ioctl(struct drm_device *dev, void *data, |
| 1458 | struct drm_file *file_priv) |
| 1459 | { |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1460 | union drm_vmw_surface_reference_arg *arg = |
| 1461 | (union drm_vmw_surface_reference_arg *)data; |
| 1462 | struct drm_vmw_surface_arg *req = &arg->req; |
| 1463 | struct drm_vmw_surface_create_req *rep = &arg->rep; |
| 1464 | struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1465 | struct vmw_surface *srf; |
| 1466 | struct vmw_user_surface *user_srf; |
| 1467 | struct drm_vmw_size __user *user_sizes; |
Thomas Hellstrom | 7a73ba7 | 2009-12-22 16:53:41 +0100 | [diff] [blame] | 1468 | struct ttm_base_object *base; |
| 1469 | int ret = -EINVAL; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1470 | |
Thomas Hellstrom | 7a73ba7 | 2009-12-22 16:53:41 +0100 | [diff] [blame] | 1471 | base = ttm_base_object_lookup(tfile, req->sid); |
| 1472 | if (unlikely(base == NULL)) { |
| 1473 | DRM_ERROR("Could not find surface to reference.\n"); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1474 | return -EINVAL; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1475 | } |
| 1476 | |
Thomas Hellstrom | 7a73ba7 | 2009-12-22 16:53:41 +0100 | [diff] [blame] | 1477 | if (unlikely(base->object_type != VMW_RES_SURFACE)) |
| 1478 | goto out_bad_resource; |
| 1479 | |
| 1480 | user_srf = container_of(base, struct vmw_user_surface, base); |
| 1481 | srf = &user_srf->srf; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1482 | |
| 1483 | ret = ttm_ref_object_add(tfile, &user_srf->base, TTM_REF_USAGE, NULL); |
| 1484 | if (unlikely(ret != 0)) { |
| 1485 | DRM_ERROR("Could not add a reference to a surface.\n"); |
Thomas Hellstrom | 7a73ba7 | 2009-12-22 16:53:41 +0100 | [diff] [blame] | 1486 | goto out_no_reference; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1487 | } |
| 1488 | |
| 1489 | rep->flags = srf->flags; |
| 1490 | rep->format = srf->format; |
| 1491 | memcpy(rep->mip_levels, srf->mip_levels, sizeof(srf->mip_levels)); |
| 1492 | user_sizes = (struct drm_vmw_size __user *)(unsigned long) |
| 1493 | rep->size_addr; |
| 1494 | |
| 1495 | if (user_sizes) |
| 1496 | ret = copy_to_user(user_sizes, srf->sizes, |
| 1497 | srf->num_sizes * sizeof(*srf->sizes)); |
Dan Carpenter | 9b8eb4d | 2010-06-04 12:24:13 +0200 | [diff] [blame] | 1498 | if (unlikely(ret != 0)) { |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1499 | DRM_ERROR("copy_to_user failed %p %u\n", |
| 1500 | user_sizes, srf->num_sizes); |
Dan Carpenter | 9b8eb4d | 2010-06-04 12:24:13 +0200 | [diff] [blame] | 1501 | ret = -EFAULT; |
| 1502 | } |
Thomas Hellstrom | 7a73ba7 | 2009-12-22 16:53:41 +0100 | [diff] [blame] | 1503 | out_bad_resource: |
| 1504 | out_no_reference: |
| 1505 | ttm_base_object_unref(&base); |
| 1506 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1507 | return ret; |
| 1508 | } |
| 1509 | |
| 1510 | int vmw_surface_check(struct vmw_private *dev_priv, |
| 1511 | struct ttm_object_file *tfile, |
Thomas Hellstrom | 7a73ba7 | 2009-12-22 16:53:41 +0100 | [diff] [blame] | 1512 | uint32_t handle, int *id) |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1513 | { |
Thomas Hellstrom | 7a73ba7 | 2009-12-22 16:53:41 +0100 | [diff] [blame] | 1514 | struct ttm_base_object *base; |
| 1515 | struct vmw_user_surface *user_srf; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1516 | |
Thomas Hellstrom | 7a73ba7 | 2009-12-22 16:53:41 +0100 | [diff] [blame] | 1517 | int ret = -EPERM; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1518 | |
Thomas Hellstrom | 7a73ba7 | 2009-12-22 16:53:41 +0100 | [diff] [blame] | 1519 | base = ttm_base_object_lookup(tfile, handle); |
| 1520 | if (unlikely(base == NULL)) |
| 1521 | return -EINVAL; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1522 | |
Thomas Hellstrom | 7a73ba7 | 2009-12-22 16:53:41 +0100 | [diff] [blame] | 1523 | if (unlikely(base->object_type != VMW_RES_SURFACE)) |
| 1524 | goto out_bad_surface; |
| 1525 | |
| 1526 | user_srf = container_of(base, struct vmw_user_surface, base); |
| 1527 | *id = user_srf->srf.res.id; |
| 1528 | ret = 0; |
| 1529 | |
| 1530 | out_bad_surface: |
| 1531 | /** |
| 1532 | * FIXME: May deadlock here when called from the |
| 1533 | * command parsing code. |
| 1534 | */ |
| 1535 | |
| 1536 | ttm_base_object_unref(&base); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1537 | return ret; |
| 1538 | } |
| 1539 | |
| 1540 | /** |
| 1541 | * Buffer management. |
| 1542 | */ |
Thomas Hellstrom | effe110 | 2010-01-13 22:28:39 +0100 | [diff] [blame] | 1543 | void vmw_dmabuf_bo_free(struct ttm_buffer_object *bo) |
| 1544 | { |
| 1545 | struct vmw_dma_buffer *vmw_bo = vmw_dma_buffer(bo); |
Thomas Hellstrom | effe110 | 2010-01-13 22:28:39 +0100 | [diff] [blame] | 1546 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1547 | kfree(vmw_bo); |
| 1548 | } |
| 1549 | |
| 1550 | int vmw_dmabuf_init(struct vmw_private *dev_priv, |
| 1551 | struct vmw_dma_buffer *vmw_bo, |
| 1552 | size_t size, struct ttm_placement *placement, |
| 1553 | bool interruptible, |
| 1554 | void (*bo_free) (struct ttm_buffer_object *bo)) |
| 1555 | { |
| 1556 | struct ttm_bo_device *bdev = &dev_priv->bdev; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1557 | size_t acc_size; |
| 1558 | int ret; |
| 1559 | |
| 1560 | BUG_ON(!bo_free); |
| 1561 | |
Jerome Glisse | 57de4ba | 2011-11-11 15:42:57 -0500 | [diff] [blame] | 1562 | acc_size = ttm_bo_acc_size(bdev, size, sizeof(struct vmw_dma_buffer)); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1563 | memset(vmw_bo, 0, sizeof(*vmw_bo)); |
| 1564 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1565 | INIT_LIST_HEAD(&vmw_bo->validate_list); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1566 | |
| 1567 | ret = ttm_bo_init(bdev, &vmw_bo->base, size, |
| 1568 | ttm_bo_type_device, placement, |
| 1569 | 0, 0, interruptible, |
| 1570 | NULL, acc_size, bo_free); |
| 1571 | return ret; |
| 1572 | } |
| 1573 | |
| 1574 | static void vmw_user_dmabuf_destroy(struct ttm_buffer_object *bo) |
| 1575 | { |
| 1576 | struct vmw_user_dma_buffer *vmw_user_bo = vmw_user_dma_buffer(bo); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1577 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1578 | kfree(vmw_user_bo); |
| 1579 | } |
| 1580 | |
| 1581 | static void vmw_user_dmabuf_release(struct ttm_base_object **p_base) |
| 1582 | { |
| 1583 | struct vmw_user_dma_buffer *vmw_user_bo; |
| 1584 | struct ttm_base_object *base = *p_base; |
| 1585 | struct ttm_buffer_object *bo; |
| 1586 | |
| 1587 | *p_base = NULL; |
| 1588 | |
| 1589 | if (unlikely(base == NULL)) |
| 1590 | return; |
| 1591 | |
| 1592 | vmw_user_bo = container_of(base, struct vmw_user_dma_buffer, base); |
| 1593 | bo = &vmw_user_bo->dma.base; |
| 1594 | ttm_bo_unref(&bo); |
| 1595 | } |
| 1596 | |
| 1597 | int vmw_dmabuf_alloc_ioctl(struct drm_device *dev, void *data, |
| 1598 | struct drm_file *file_priv) |
| 1599 | { |
| 1600 | struct vmw_private *dev_priv = vmw_priv(dev); |
| 1601 | union drm_vmw_alloc_dmabuf_arg *arg = |
| 1602 | (union drm_vmw_alloc_dmabuf_arg *)data; |
| 1603 | struct drm_vmw_alloc_dmabuf_req *req = &arg->req; |
| 1604 | struct drm_vmw_dmabuf_rep *rep = &arg->rep; |
| 1605 | struct vmw_user_dma_buffer *vmw_user_bo; |
| 1606 | struct ttm_buffer_object *tmp; |
| 1607 | struct vmw_master *vmaster = vmw_master(file_priv->master); |
| 1608 | int ret; |
| 1609 | |
| 1610 | vmw_user_bo = kzalloc(sizeof(*vmw_user_bo), GFP_KERNEL); |
| 1611 | if (unlikely(vmw_user_bo == NULL)) |
| 1612 | return -ENOMEM; |
| 1613 | |
| 1614 | ret = ttm_read_lock(&vmaster->lock, true); |
| 1615 | if (unlikely(ret != 0)) { |
| 1616 | kfree(vmw_user_bo); |
| 1617 | return ret; |
| 1618 | } |
| 1619 | |
| 1620 | ret = vmw_dmabuf_init(dev_priv, &vmw_user_bo->dma, req->size, |
Thomas Hellstrom | 8ba5152 | 2010-01-16 16:05:05 +0100 | [diff] [blame] | 1621 | &vmw_vram_sys_placement, true, |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1622 | &vmw_user_dmabuf_destroy); |
| 1623 | if (unlikely(ret != 0)) |
Thomas Hellstrom | 2f5993c | 2010-11-17 13:24:48 +0100 | [diff] [blame] | 1624 | goto out_no_dmabuf; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1625 | |
| 1626 | tmp = ttm_bo_reference(&vmw_user_bo->dma.base); |
| 1627 | ret = ttm_base_object_init(vmw_fpriv(file_priv)->tfile, |
| 1628 | &vmw_user_bo->base, |
| 1629 | false, |
| 1630 | ttm_buffer_type, |
| 1631 | &vmw_user_dmabuf_release, NULL); |
Thomas Hellstrom | 2f5993c | 2010-11-17 13:24:48 +0100 | [diff] [blame] | 1632 | if (unlikely(ret != 0)) |
| 1633 | goto out_no_base_object; |
| 1634 | else { |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1635 | rep->handle = vmw_user_bo->base.hash.key; |
| 1636 | rep->map_handle = vmw_user_bo->dma.base.addr_space_offset; |
| 1637 | rep->cur_gmr_id = vmw_user_bo->base.hash.key; |
| 1638 | rep->cur_gmr_offset = 0; |
| 1639 | } |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1640 | |
Thomas Hellstrom | 2f5993c | 2010-11-17 13:24:48 +0100 | [diff] [blame] | 1641 | out_no_base_object: |
| 1642 | ttm_bo_unref(&tmp); |
| 1643 | out_no_dmabuf: |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1644 | ttm_read_unlock(&vmaster->lock); |
| 1645 | |
Thomas Hellstrom | 2f5993c | 2010-11-17 13:24:48 +0100 | [diff] [blame] | 1646 | return ret; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1647 | } |
| 1648 | |
| 1649 | int vmw_dmabuf_unref_ioctl(struct drm_device *dev, void *data, |
| 1650 | struct drm_file *file_priv) |
| 1651 | { |
| 1652 | struct drm_vmw_unref_dmabuf_arg *arg = |
| 1653 | (struct drm_vmw_unref_dmabuf_arg *)data; |
| 1654 | |
| 1655 | return ttm_ref_object_base_unref(vmw_fpriv(file_priv)->tfile, |
| 1656 | arg->handle, |
| 1657 | TTM_REF_USAGE); |
| 1658 | } |
| 1659 | |
| 1660 | uint32_t vmw_dmabuf_validate_node(struct ttm_buffer_object *bo, |
| 1661 | uint32_t cur_validate_node) |
| 1662 | { |
| 1663 | struct vmw_dma_buffer *vmw_bo = vmw_dma_buffer(bo); |
| 1664 | |
| 1665 | if (likely(vmw_bo->on_validate_list)) |
| 1666 | return vmw_bo->cur_validate_node; |
| 1667 | |
| 1668 | vmw_bo->cur_validate_node = cur_validate_node; |
| 1669 | vmw_bo->on_validate_list = true; |
| 1670 | |
| 1671 | return cur_validate_node; |
| 1672 | } |
| 1673 | |
| 1674 | void vmw_dmabuf_validate_clear(struct ttm_buffer_object *bo) |
| 1675 | { |
| 1676 | struct vmw_dma_buffer *vmw_bo = vmw_dma_buffer(bo); |
| 1677 | |
| 1678 | vmw_bo->on_validate_list = false; |
| 1679 | } |
| 1680 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1681 | int vmw_user_dmabuf_lookup(struct ttm_object_file *tfile, |
| 1682 | uint32_t handle, struct vmw_dma_buffer **out) |
| 1683 | { |
| 1684 | struct vmw_user_dma_buffer *vmw_user_bo; |
| 1685 | struct ttm_base_object *base; |
| 1686 | |
| 1687 | base = ttm_base_object_lookup(tfile, handle); |
| 1688 | if (unlikely(base == NULL)) { |
| 1689 | printk(KERN_ERR "Invalid buffer object handle 0x%08lx.\n", |
| 1690 | (unsigned long)handle); |
| 1691 | return -ESRCH; |
| 1692 | } |
| 1693 | |
| 1694 | if (unlikely(base->object_type != ttm_buffer_type)) { |
| 1695 | ttm_base_object_unref(&base); |
| 1696 | printk(KERN_ERR "Invalid buffer object handle 0x%08lx.\n", |
| 1697 | (unsigned long)handle); |
| 1698 | return -EINVAL; |
| 1699 | } |
| 1700 | |
| 1701 | vmw_user_bo = container_of(base, struct vmw_user_dma_buffer, base); |
| 1702 | (void)ttm_bo_reference(&vmw_user_bo->dma.base); |
| 1703 | ttm_base_object_unref(&base); |
| 1704 | *out = &vmw_user_bo->dma; |
| 1705 | |
| 1706 | return 0; |
| 1707 | } |
| 1708 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1709 | /* |
Uwe Kleine-König | 65155b3 | 2010-06-11 12:17:01 +0200 | [diff] [blame] | 1710 | * Stream management |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1711 | */ |
| 1712 | |
| 1713 | static void vmw_stream_destroy(struct vmw_resource *res) |
| 1714 | { |
| 1715 | struct vmw_private *dev_priv = res->dev_priv; |
| 1716 | struct vmw_stream *stream; |
| 1717 | int ret; |
| 1718 | |
| 1719 | DRM_INFO("%s: unref\n", __func__); |
| 1720 | stream = container_of(res, struct vmw_stream, res); |
| 1721 | |
| 1722 | ret = vmw_overlay_unref(dev_priv, stream->stream_id); |
| 1723 | WARN_ON(ret != 0); |
| 1724 | } |
| 1725 | |
| 1726 | static int vmw_stream_init(struct vmw_private *dev_priv, |
| 1727 | struct vmw_stream *stream, |
| 1728 | void (*res_free) (struct vmw_resource *res)) |
| 1729 | { |
| 1730 | struct vmw_resource *res = &stream->res; |
| 1731 | int ret; |
| 1732 | |
| 1733 | ret = vmw_resource_init(dev_priv, res, &dev_priv->stream_idr, |
Thomas Hellstrom | 5bb39e8 | 2011-10-04 20:13:33 +0200 | [diff] [blame] | 1734 | VMW_RES_STREAM, false, res_free, NULL); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1735 | |
| 1736 | if (unlikely(ret != 0)) { |
| 1737 | if (res_free == NULL) |
| 1738 | kfree(stream); |
| 1739 | else |
| 1740 | res_free(&stream->res); |
| 1741 | return ret; |
| 1742 | } |
| 1743 | |
| 1744 | ret = vmw_overlay_claim(dev_priv, &stream->stream_id); |
| 1745 | if (ret) { |
| 1746 | vmw_resource_unreference(&res); |
| 1747 | return ret; |
| 1748 | } |
| 1749 | |
| 1750 | DRM_INFO("%s: claimed\n", __func__); |
| 1751 | |
| 1752 | vmw_resource_activate(&stream->res, vmw_stream_destroy); |
| 1753 | return 0; |
| 1754 | } |
| 1755 | |
| 1756 | /** |
| 1757 | * User-space context management: |
| 1758 | */ |
| 1759 | |
| 1760 | static void vmw_user_stream_free(struct vmw_resource *res) |
| 1761 | { |
| 1762 | struct vmw_user_stream *stream = |
| 1763 | container_of(res, struct vmw_user_stream, stream.res); |
Thomas Hellstrom | 414ee50 | 2011-10-07 15:23:06 +0200 | [diff] [blame] | 1764 | struct vmw_private *dev_priv = res->dev_priv; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1765 | |
| 1766 | kfree(stream); |
Thomas Hellstrom | 414ee50 | 2011-10-07 15:23:06 +0200 | [diff] [blame] | 1767 | ttm_mem_global_free(vmw_mem_glob(dev_priv), |
| 1768 | vmw_user_stream_size); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1769 | } |
| 1770 | |
| 1771 | /** |
| 1772 | * This function is called when user space has no more references on the |
| 1773 | * base object. It releases the base-object's reference on the resource object. |
| 1774 | */ |
| 1775 | |
| 1776 | static void vmw_user_stream_base_release(struct ttm_base_object **p_base) |
| 1777 | { |
| 1778 | struct ttm_base_object *base = *p_base; |
| 1779 | struct vmw_user_stream *stream = |
| 1780 | container_of(base, struct vmw_user_stream, base); |
| 1781 | struct vmw_resource *res = &stream->stream.res; |
| 1782 | |
| 1783 | *p_base = NULL; |
| 1784 | vmw_resource_unreference(&res); |
| 1785 | } |
| 1786 | |
| 1787 | int vmw_stream_unref_ioctl(struct drm_device *dev, void *data, |
| 1788 | struct drm_file *file_priv) |
| 1789 | { |
| 1790 | struct vmw_private *dev_priv = vmw_priv(dev); |
| 1791 | struct vmw_resource *res; |
| 1792 | struct vmw_user_stream *stream; |
| 1793 | struct drm_vmw_stream_arg *arg = (struct drm_vmw_stream_arg *)data; |
| 1794 | struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; |
| 1795 | int ret = 0; |
| 1796 | |
| 1797 | res = vmw_resource_lookup(dev_priv, &dev_priv->stream_idr, arg->stream_id); |
| 1798 | if (unlikely(res == NULL)) |
| 1799 | return -EINVAL; |
| 1800 | |
| 1801 | if (res->res_free != &vmw_user_stream_free) { |
| 1802 | ret = -EINVAL; |
| 1803 | goto out; |
| 1804 | } |
| 1805 | |
| 1806 | stream = container_of(res, struct vmw_user_stream, stream.res); |
| 1807 | if (stream->base.tfile != tfile) { |
| 1808 | ret = -EINVAL; |
| 1809 | goto out; |
| 1810 | } |
| 1811 | |
| 1812 | ttm_ref_object_base_unref(tfile, stream->base.hash.key, TTM_REF_USAGE); |
| 1813 | out: |
| 1814 | vmw_resource_unreference(&res); |
| 1815 | return ret; |
| 1816 | } |
| 1817 | |
| 1818 | int vmw_stream_claim_ioctl(struct drm_device *dev, void *data, |
| 1819 | struct drm_file *file_priv) |
| 1820 | { |
| 1821 | struct vmw_private *dev_priv = vmw_priv(dev); |
Thomas Hellstrom | 414ee50 | 2011-10-07 15:23:06 +0200 | [diff] [blame] | 1822 | struct vmw_user_stream *stream; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1823 | struct vmw_resource *res; |
| 1824 | struct vmw_resource *tmp; |
| 1825 | struct drm_vmw_stream_arg *arg = (struct drm_vmw_stream_arg *)data; |
| 1826 | struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; |
Thomas Hellstrom | 414ee50 | 2011-10-07 15:23:06 +0200 | [diff] [blame] | 1827 | struct vmw_master *vmaster = vmw_master(file_priv->master); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1828 | int ret; |
| 1829 | |
Thomas Hellstrom | 414ee50 | 2011-10-07 15:23:06 +0200 | [diff] [blame] | 1830 | /* |
| 1831 | * Approximate idr memory usage with 128 bytes. It will be limited |
| 1832 | * by maximum number_of streams anyway? |
| 1833 | */ |
| 1834 | |
| 1835 | if (unlikely(vmw_user_stream_size == 0)) |
| 1836 | vmw_user_stream_size = ttm_round_pot(sizeof(*stream)) + 128; |
| 1837 | |
| 1838 | ret = ttm_read_lock(&vmaster->lock, true); |
| 1839 | if (unlikely(ret != 0)) |
| 1840 | return ret; |
| 1841 | |
| 1842 | ret = ttm_mem_global_alloc(vmw_mem_glob(dev_priv), |
| 1843 | vmw_user_stream_size, |
| 1844 | false, true); |
| 1845 | if (unlikely(ret != 0)) { |
| 1846 | if (ret != -ERESTARTSYS) |
| 1847 | DRM_ERROR("Out of graphics memory for stream" |
| 1848 | " creation.\n"); |
| 1849 | goto out_unlock; |
| 1850 | } |
| 1851 | |
| 1852 | |
| 1853 | stream = kmalloc(sizeof(*stream), GFP_KERNEL); |
| 1854 | if (unlikely(stream == NULL)) { |
| 1855 | ttm_mem_global_free(vmw_mem_glob(dev_priv), |
| 1856 | vmw_user_stream_size); |
| 1857 | ret = -ENOMEM; |
| 1858 | goto out_unlock; |
| 1859 | } |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1860 | |
| 1861 | res = &stream->stream.res; |
| 1862 | stream->base.shareable = false; |
| 1863 | stream->base.tfile = NULL; |
| 1864 | |
Thomas Hellstrom | 414ee50 | 2011-10-07 15:23:06 +0200 | [diff] [blame] | 1865 | /* |
| 1866 | * From here on, the destructor takes over resource freeing. |
| 1867 | */ |
| 1868 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1869 | ret = vmw_stream_init(dev_priv, &stream->stream, vmw_user_stream_free); |
| 1870 | if (unlikely(ret != 0)) |
Thomas Hellstrom | 414ee50 | 2011-10-07 15:23:06 +0200 | [diff] [blame] | 1871 | goto out_unlock; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1872 | |
| 1873 | tmp = vmw_resource_reference(res); |
| 1874 | ret = ttm_base_object_init(tfile, &stream->base, false, VMW_RES_STREAM, |
| 1875 | &vmw_user_stream_base_release, NULL); |
| 1876 | |
| 1877 | if (unlikely(ret != 0)) { |
| 1878 | vmw_resource_unreference(&tmp); |
| 1879 | goto out_err; |
| 1880 | } |
| 1881 | |
| 1882 | arg->stream_id = res->id; |
| 1883 | out_err: |
| 1884 | vmw_resource_unreference(&res); |
Thomas Hellstrom | 414ee50 | 2011-10-07 15:23:06 +0200 | [diff] [blame] | 1885 | out_unlock: |
| 1886 | ttm_read_unlock(&vmaster->lock); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1887 | return ret; |
| 1888 | } |
| 1889 | |
| 1890 | int vmw_user_stream_lookup(struct vmw_private *dev_priv, |
| 1891 | struct ttm_object_file *tfile, |
| 1892 | uint32_t *inout_id, struct vmw_resource **out) |
| 1893 | { |
| 1894 | struct vmw_user_stream *stream; |
| 1895 | struct vmw_resource *res; |
| 1896 | int ret; |
| 1897 | |
| 1898 | res = vmw_resource_lookup(dev_priv, &dev_priv->stream_idr, *inout_id); |
| 1899 | if (unlikely(res == NULL)) |
| 1900 | return -EINVAL; |
| 1901 | |
| 1902 | if (res->res_free != &vmw_user_stream_free) { |
| 1903 | ret = -EINVAL; |
| 1904 | goto err_ref; |
| 1905 | } |
| 1906 | |
| 1907 | stream = container_of(res, struct vmw_user_stream, stream.res); |
| 1908 | if (stream->base.tfile != tfile) { |
| 1909 | ret = -EPERM; |
| 1910 | goto err_ref; |
| 1911 | } |
| 1912 | |
| 1913 | *inout_id = stream->stream.stream_id; |
| 1914 | *out = res; |
| 1915 | return 0; |
| 1916 | err_ref: |
| 1917 | vmw_resource_unreference(&res); |
| 1918 | return ret; |
| 1919 | } |