Thomas Hellstrom | c74c162 | 2012-11-21 12:10:26 +0100 | [diff] [blame] | 1 | /************************************************************************** |
| 2 | * |
Sinclair Yeh | 54fbde8 | 2015-07-29 12:38:02 -0700 | [diff] [blame] | 3 | * Copyright © 2009-2015 VMware, Inc., Palo Alto, CA., USA |
Thomas Hellstrom | c74c162 | 2012-11-21 12:10:26 +0100 | [diff] [blame] | 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_resource_priv.h" |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 30 | #include "vmwgfx_binding.h" |
Thomas Hellstrom | c74c162 | 2012-11-21 12:10:26 +0100 | [diff] [blame] | 31 | #include "ttm/ttm_placement.h" |
| 32 | |
| 33 | struct vmw_shader { |
| 34 | struct vmw_resource res; |
| 35 | SVGA3dShaderType type; |
| 36 | uint32_t size; |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 37 | uint8_t num_input_sig; |
| 38 | uint8_t num_output_sig; |
Thomas Hellstrom | c74c162 | 2012-11-21 12:10:26 +0100 | [diff] [blame] | 39 | }; |
| 40 | |
| 41 | struct vmw_user_shader { |
| 42 | struct ttm_base_object base; |
| 43 | struct vmw_shader shader; |
| 44 | }; |
| 45 | |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 46 | struct vmw_dx_shader { |
| 47 | struct vmw_resource res; |
| 48 | struct vmw_resource *ctx; |
| 49 | struct vmw_resource *cotable; |
| 50 | u32 id; |
| 51 | bool committed; |
| 52 | struct list_head cotable_head; |
| 53 | }; |
| 54 | |
Thomas Hellstrom | 18e4a46 | 2014-06-09 12:39:22 +0200 | [diff] [blame] | 55 | static uint64_t vmw_user_shader_size; |
| 56 | static uint64_t vmw_shader_size; |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 57 | static size_t vmw_shader_dx_size; |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 58 | |
Thomas Hellstrom | c74c162 | 2012-11-21 12:10:26 +0100 | [diff] [blame] | 59 | static void vmw_user_shader_free(struct vmw_resource *res); |
| 60 | static struct vmw_resource * |
| 61 | vmw_user_shader_base_to_res(struct ttm_base_object *base); |
| 62 | |
| 63 | static int vmw_gb_shader_create(struct vmw_resource *res); |
| 64 | static int vmw_gb_shader_bind(struct vmw_resource *res, |
| 65 | struct ttm_validate_buffer *val_buf); |
| 66 | static int vmw_gb_shader_unbind(struct vmw_resource *res, |
| 67 | bool readback, |
| 68 | struct ttm_validate_buffer *val_buf); |
| 69 | static int vmw_gb_shader_destroy(struct vmw_resource *res); |
| 70 | |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 71 | static int vmw_dx_shader_create(struct vmw_resource *res); |
| 72 | static int vmw_dx_shader_bind(struct vmw_resource *res, |
| 73 | struct ttm_validate_buffer *val_buf); |
| 74 | static int vmw_dx_shader_unbind(struct vmw_resource *res, |
| 75 | bool readback, |
| 76 | struct ttm_validate_buffer *val_buf); |
| 77 | static void vmw_dx_shader_commit_notify(struct vmw_resource *res, |
| 78 | enum vmw_cmdbuf_res_state state); |
| 79 | static bool vmw_shader_id_ok(u32 user_key, SVGA3dShaderType shader_type); |
| 80 | static u32 vmw_shader_key(u32 user_key, SVGA3dShaderType shader_type); |
| 81 | static uint64_t vmw_user_shader_size; |
| 82 | |
Thomas Hellstrom | c74c162 | 2012-11-21 12:10:26 +0100 | [diff] [blame] | 83 | static const struct vmw_user_resource_conv user_shader_conv = { |
| 84 | .object_type = VMW_RES_SHADER, |
| 85 | .base_obj_to_res = vmw_user_shader_base_to_res, |
| 86 | .res_free = vmw_user_shader_free |
| 87 | }; |
| 88 | |
| 89 | const struct vmw_user_resource_conv *user_shader_converter = |
| 90 | &user_shader_conv; |
| 91 | |
| 92 | |
| 93 | static const struct vmw_res_func vmw_gb_shader_func = { |
| 94 | .res_type = vmw_res_shader, |
| 95 | .needs_backup = true, |
| 96 | .may_evict = true, |
| 97 | .type_name = "guest backed shaders", |
| 98 | .backup_placement = &vmw_mob_placement, |
| 99 | .create = vmw_gb_shader_create, |
| 100 | .destroy = vmw_gb_shader_destroy, |
| 101 | .bind = vmw_gb_shader_bind, |
| 102 | .unbind = vmw_gb_shader_unbind |
| 103 | }; |
| 104 | |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 105 | static const struct vmw_res_func vmw_dx_shader_func = { |
| 106 | .res_type = vmw_res_shader, |
| 107 | .needs_backup = true, |
| 108 | .may_evict = false, |
| 109 | .type_name = "dx shaders", |
| 110 | .backup_placement = &vmw_mob_placement, |
| 111 | .create = vmw_dx_shader_create, |
| 112 | /* |
| 113 | * The destroy callback is only called with a committed resource on |
| 114 | * context destroy, in which case we destroy the cotable anyway, |
| 115 | * so there's no need to destroy DX shaders separately. |
| 116 | */ |
| 117 | .destroy = NULL, |
| 118 | .bind = vmw_dx_shader_bind, |
| 119 | .unbind = vmw_dx_shader_unbind, |
| 120 | .commit_notify = vmw_dx_shader_commit_notify, |
| 121 | }; |
| 122 | |
Thomas Hellstrom | c74c162 | 2012-11-21 12:10:26 +0100 | [diff] [blame] | 123 | /** |
| 124 | * Shader management: |
| 125 | */ |
| 126 | |
| 127 | static inline struct vmw_shader * |
| 128 | vmw_res_to_shader(struct vmw_resource *res) |
| 129 | { |
| 130 | return container_of(res, struct vmw_shader, res); |
| 131 | } |
| 132 | |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 133 | /** |
| 134 | * vmw_res_to_dx_shader - typecast a struct vmw_resource to a |
| 135 | * struct vmw_dx_shader |
| 136 | * |
| 137 | * @res: Pointer to the struct vmw_resource. |
| 138 | */ |
| 139 | static inline struct vmw_dx_shader * |
| 140 | vmw_res_to_dx_shader(struct vmw_resource *res) |
| 141 | { |
| 142 | return container_of(res, struct vmw_dx_shader, res); |
| 143 | } |
| 144 | |
Thomas Hellstrom | c74c162 | 2012-11-21 12:10:26 +0100 | [diff] [blame] | 145 | static void vmw_hw_shader_destroy(struct vmw_resource *res) |
| 146 | { |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 147 | if (likely(res->func->destroy)) |
| 148 | (void) res->func->destroy(res); |
| 149 | else |
| 150 | res->id = -1; |
Thomas Hellstrom | c74c162 | 2012-11-21 12:10:26 +0100 | [diff] [blame] | 151 | } |
| 152 | |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 153 | |
Thomas Hellstrom | c74c162 | 2012-11-21 12:10:26 +0100 | [diff] [blame] | 154 | static int vmw_gb_shader_init(struct vmw_private *dev_priv, |
| 155 | struct vmw_resource *res, |
| 156 | uint32_t size, |
| 157 | uint64_t offset, |
| 158 | SVGA3dShaderType type, |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 159 | uint8_t num_input_sig, |
| 160 | uint8_t num_output_sig, |
Thomas Hellstrom | c74c162 | 2012-11-21 12:10:26 +0100 | [diff] [blame] | 161 | struct vmw_dma_buffer *byte_code, |
| 162 | void (*res_free) (struct vmw_resource *res)) |
| 163 | { |
| 164 | struct vmw_shader *shader = vmw_res_to_shader(res); |
| 165 | int ret; |
| 166 | |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 167 | ret = vmw_resource_init(dev_priv, res, true, res_free, |
| 168 | &vmw_gb_shader_func); |
Thomas Hellstrom | c74c162 | 2012-11-21 12:10:26 +0100 | [diff] [blame] | 169 | |
| 170 | if (unlikely(ret != 0)) { |
| 171 | if (res_free) |
| 172 | res_free(res); |
| 173 | else |
| 174 | kfree(res); |
| 175 | return ret; |
| 176 | } |
| 177 | |
| 178 | res->backup_size = size; |
| 179 | if (byte_code) { |
| 180 | res->backup = vmw_dmabuf_reference(byte_code); |
| 181 | res->backup_offset = offset; |
| 182 | } |
| 183 | shader->size = size; |
| 184 | shader->type = type; |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 185 | shader->num_input_sig = num_input_sig; |
| 186 | shader->num_output_sig = num_output_sig; |
Thomas Hellstrom | c74c162 | 2012-11-21 12:10:26 +0100 | [diff] [blame] | 187 | |
| 188 | vmw_resource_activate(res, vmw_hw_shader_destroy); |
| 189 | return 0; |
| 190 | } |
| 191 | |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 192 | /* |
| 193 | * GB shader code: |
| 194 | */ |
| 195 | |
Thomas Hellstrom | c74c162 | 2012-11-21 12:10:26 +0100 | [diff] [blame] | 196 | static int vmw_gb_shader_create(struct vmw_resource *res) |
| 197 | { |
| 198 | struct vmw_private *dev_priv = res->dev_priv; |
| 199 | struct vmw_shader *shader = vmw_res_to_shader(res); |
| 200 | int ret; |
| 201 | struct { |
| 202 | SVGA3dCmdHeader header; |
| 203 | SVGA3dCmdDefineGBShader body; |
| 204 | } *cmd; |
| 205 | |
| 206 | if (likely(res->id != -1)) |
| 207 | return 0; |
| 208 | |
| 209 | ret = vmw_resource_alloc_id(res); |
| 210 | if (unlikely(ret != 0)) { |
| 211 | DRM_ERROR("Failed to allocate a shader id.\n"); |
| 212 | goto out_no_id; |
| 213 | } |
| 214 | |
| 215 | if (unlikely(res->id >= VMWGFX_NUM_GB_SHADER)) { |
| 216 | ret = -EBUSY; |
| 217 | goto out_no_fifo; |
| 218 | } |
| 219 | |
| 220 | cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); |
| 221 | if (unlikely(cmd == NULL)) { |
| 222 | DRM_ERROR("Failed reserving FIFO space for shader " |
| 223 | "creation.\n"); |
| 224 | ret = -ENOMEM; |
| 225 | goto out_no_fifo; |
| 226 | } |
| 227 | |
| 228 | cmd->header.id = SVGA_3D_CMD_DEFINE_GB_SHADER; |
| 229 | cmd->header.size = sizeof(cmd->body); |
| 230 | cmd->body.shid = res->id; |
| 231 | cmd->body.type = shader->type; |
| 232 | cmd->body.sizeInBytes = shader->size; |
| 233 | vmw_fifo_commit(dev_priv, sizeof(*cmd)); |
Thomas Hellstrom | 153b3d5 | 2015-06-25 10:47:43 -0700 | [diff] [blame] | 234 | vmw_fifo_resource_inc(dev_priv); |
Thomas Hellstrom | c74c162 | 2012-11-21 12:10:26 +0100 | [diff] [blame] | 235 | |
| 236 | return 0; |
| 237 | |
| 238 | out_no_fifo: |
| 239 | vmw_resource_release_id(res); |
| 240 | out_no_id: |
| 241 | return ret; |
| 242 | } |
| 243 | |
| 244 | static int vmw_gb_shader_bind(struct vmw_resource *res, |
| 245 | struct ttm_validate_buffer *val_buf) |
| 246 | { |
| 247 | struct vmw_private *dev_priv = res->dev_priv; |
| 248 | struct { |
| 249 | SVGA3dCmdHeader header; |
| 250 | SVGA3dCmdBindGBShader body; |
| 251 | } *cmd; |
| 252 | struct ttm_buffer_object *bo = val_buf->bo; |
| 253 | |
| 254 | BUG_ON(bo->mem.mem_type != VMW_PL_MOB); |
| 255 | |
| 256 | cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); |
| 257 | if (unlikely(cmd == NULL)) { |
| 258 | DRM_ERROR("Failed reserving FIFO space for shader " |
| 259 | "binding.\n"); |
| 260 | return -ENOMEM; |
| 261 | } |
| 262 | |
| 263 | cmd->header.id = SVGA_3D_CMD_BIND_GB_SHADER; |
| 264 | cmd->header.size = sizeof(cmd->body); |
| 265 | cmd->body.shid = res->id; |
| 266 | cmd->body.mobid = bo->mem.start; |
Thomas Hellstrom | b8ccd1e | 2014-12-02 03:41:01 -0800 | [diff] [blame] | 267 | cmd->body.offsetInBytes = res->backup_offset; |
Thomas Hellstrom | c74c162 | 2012-11-21 12:10:26 +0100 | [diff] [blame] | 268 | res->backup_dirty = false; |
| 269 | vmw_fifo_commit(dev_priv, sizeof(*cmd)); |
| 270 | |
| 271 | return 0; |
| 272 | } |
| 273 | |
| 274 | static int vmw_gb_shader_unbind(struct vmw_resource *res, |
| 275 | bool readback, |
| 276 | struct ttm_validate_buffer *val_buf) |
| 277 | { |
| 278 | struct vmw_private *dev_priv = res->dev_priv; |
| 279 | struct { |
| 280 | SVGA3dCmdHeader header; |
| 281 | SVGA3dCmdBindGBShader body; |
| 282 | } *cmd; |
| 283 | struct vmw_fence_obj *fence; |
| 284 | |
| 285 | BUG_ON(res->backup->base.mem.mem_type != VMW_PL_MOB); |
| 286 | |
| 287 | cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); |
| 288 | if (unlikely(cmd == NULL)) { |
| 289 | DRM_ERROR("Failed reserving FIFO space for shader " |
| 290 | "unbinding.\n"); |
| 291 | return -ENOMEM; |
| 292 | } |
| 293 | |
| 294 | cmd->header.id = SVGA_3D_CMD_BIND_GB_SHADER; |
| 295 | cmd->header.size = sizeof(cmd->body); |
| 296 | cmd->body.shid = res->id; |
| 297 | cmd->body.mobid = SVGA3D_INVALID_ID; |
| 298 | cmd->body.offsetInBytes = 0; |
| 299 | vmw_fifo_commit(dev_priv, sizeof(*cmd)); |
| 300 | |
| 301 | /* |
| 302 | * Create a fence object and fence the backup buffer. |
| 303 | */ |
| 304 | |
| 305 | (void) vmw_execbuf_fence_commands(NULL, dev_priv, |
| 306 | &fence, NULL); |
| 307 | |
| 308 | vmw_fence_single_bo(val_buf->bo, fence); |
| 309 | |
| 310 | if (likely(fence != NULL)) |
| 311 | vmw_fence_obj_unreference(&fence); |
| 312 | |
| 313 | return 0; |
| 314 | } |
| 315 | |
| 316 | static int vmw_gb_shader_destroy(struct vmw_resource *res) |
| 317 | { |
| 318 | struct vmw_private *dev_priv = res->dev_priv; |
| 319 | struct { |
| 320 | SVGA3dCmdHeader header; |
| 321 | SVGA3dCmdDestroyGBShader body; |
| 322 | } *cmd; |
| 323 | |
| 324 | if (likely(res->id == -1)) |
| 325 | return 0; |
| 326 | |
Thomas Hellstrom | 173fb7d | 2013-10-08 02:32:36 -0700 | [diff] [blame] | 327 | mutex_lock(&dev_priv->binding_mutex); |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 328 | vmw_binding_res_list_scrub(&res->binding_head); |
Thomas Hellstrom | 173fb7d | 2013-10-08 02:32:36 -0700 | [diff] [blame] | 329 | |
Thomas Hellstrom | c74c162 | 2012-11-21 12:10:26 +0100 | [diff] [blame] | 330 | cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); |
| 331 | if (unlikely(cmd == NULL)) { |
| 332 | DRM_ERROR("Failed reserving FIFO space for shader " |
| 333 | "destruction.\n"); |
Thomas Hellstrom | 3e894a6 | 2014-01-20 11:33:04 +0100 | [diff] [blame] | 334 | mutex_unlock(&dev_priv->binding_mutex); |
Thomas Hellstrom | c74c162 | 2012-11-21 12:10:26 +0100 | [diff] [blame] | 335 | return -ENOMEM; |
| 336 | } |
| 337 | |
| 338 | cmd->header.id = SVGA_3D_CMD_DESTROY_GB_SHADER; |
| 339 | cmd->header.size = sizeof(cmd->body); |
| 340 | cmd->body.shid = res->id; |
| 341 | vmw_fifo_commit(dev_priv, sizeof(*cmd)); |
Thomas Hellstrom | 173fb7d | 2013-10-08 02:32:36 -0700 | [diff] [blame] | 342 | mutex_unlock(&dev_priv->binding_mutex); |
Thomas Hellstrom | c74c162 | 2012-11-21 12:10:26 +0100 | [diff] [blame] | 343 | vmw_resource_release_id(res); |
Thomas Hellstrom | 153b3d5 | 2015-06-25 10:47:43 -0700 | [diff] [blame] | 344 | vmw_fifo_resource_dec(dev_priv); |
Thomas Hellstrom | c74c162 | 2012-11-21 12:10:26 +0100 | [diff] [blame] | 345 | |
| 346 | return 0; |
| 347 | } |
| 348 | |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 349 | /* |
| 350 | * DX shader code: |
| 351 | */ |
| 352 | |
| 353 | /** |
| 354 | * vmw_dx_shader_commit_notify - Notify that a shader operation has been |
| 355 | * committed to hardware from a user-supplied command stream. |
| 356 | * |
| 357 | * @res: Pointer to the shader resource. |
| 358 | * @state: Indicating whether a creation or removal has been committed. |
| 359 | * |
| 360 | */ |
| 361 | static void vmw_dx_shader_commit_notify(struct vmw_resource *res, |
| 362 | enum vmw_cmdbuf_res_state state) |
| 363 | { |
| 364 | struct vmw_dx_shader *shader = vmw_res_to_dx_shader(res); |
| 365 | struct vmw_private *dev_priv = res->dev_priv; |
| 366 | |
| 367 | if (state == VMW_CMDBUF_RES_ADD) { |
| 368 | mutex_lock(&dev_priv->binding_mutex); |
| 369 | vmw_cotable_add_resource(shader->cotable, |
| 370 | &shader->cotable_head); |
| 371 | shader->committed = true; |
| 372 | res->id = shader->id; |
| 373 | mutex_unlock(&dev_priv->binding_mutex); |
| 374 | } else { |
| 375 | mutex_lock(&dev_priv->binding_mutex); |
| 376 | list_del_init(&shader->cotable_head); |
| 377 | shader->committed = false; |
| 378 | res->id = -1; |
| 379 | mutex_unlock(&dev_priv->binding_mutex); |
| 380 | } |
| 381 | } |
| 382 | |
| 383 | /** |
| 384 | * vmw_dx_shader_unscrub - Have the device reattach a MOB to a DX shader. |
| 385 | * |
| 386 | * @res: The shader resource |
| 387 | * |
| 388 | * This function reverts a scrub operation. |
| 389 | */ |
| 390 | static int vmw_dx_shader_unscrub(struct vmw_resource *res) |
| 391 | { |
| 392 | struct vmw_dx_shader *shader = vmw_res_to_dx_shader(res); |
| 393 | struct vmw_private *dev_priv = res->dev_priv; |
| 394 | struct { |
| 395 | SVGA3dCmdHeader header; |
| 396 | SVGA3dCmdDXBindShader body; |
| 397 | } *cmd; |
| 398 | |
| 399 | if (!list_empty(&shader->cotable_head) || !shader->committed) |
| 400 | return 0; |
| 401 | |
| 402 | cmd = vmw_fifo_reserve_dx(dev_priv, sizeof(*cmd), |
| 403 | shader->ctx->id); |
| 404 | if (unlikely(cmd == NULL)) { |
| 405 | DRM_ERROR("Failed reserving FIFO space for shader " |
| 406 | "scrubbing.\n"); |
| 407 | return -ENOMEM; |
| 408 | } |
| 409 | |
| 410 | cmd->header.id = SVGA_3D_CMD_DX_BIND_SHADER; |
| 411 | cmd->header.size = sizeof(cmd->body); |
| 412 | cmd->body.cid = shader->ctx->id; |
| 413 | cmd->body.shid = shader->id; |
| 414 | cmd->body.mobid = res->backup->base.mem.start; |
| 415 | cmd->body.offsetInBytes = res->backup_offset; |
| 416 | vmw_fifo_commit(dev_priv, sizeof(*cmd)); |
| 417 | |
| 418 | vmw_cotable_add_resource(shader->cotable, &shader->cotable_head); |
| 419 | |
| 420 | return 0; |
| 421 | } |
| 422 | |
| 423 | /** |
| 424 | * vmw_dx_shader_create - The DX shader create callback |
| 425 | * |
| 426 | * @res: The DX shader resource |
| 427 | * |
| 428 | * The create callback is called as part of resource validation and |
| 429 | * makes sure that we unscrub the shader if it's previously been scrubbed. |
| 430 | */ |
| 431 | static int vmw_dx_shader_create(struct vmw_resource *res) |
| 432 | { |
| 433 | struct vmw_private *dev_priv = res->dev_priv; |
| 434 | struct vmw_dx_shader *shader = vmw_res_to_dx_shader(res); |
| 435 | int ret = 0; |
| 436 | |
| 437 | WARN_ON_ONCE(!shader->committed); |
| 438 | |
| 439 | if (!list_empty(&res->mob_head)) { |
| 440 | mutex_lock(&dev_priv->binding_mutex); |
| 441 | ret = vmw_dx_shader_unscrub(res); |
| 442 | mutex_unlock(&dev_priv->binding_mutex); |
| 443 | } |
| 444 | |
| 445 | res->id = shader->id; |
| 446 | return ret; |
| 447 | } |
| 448 | |
| 449 | /** |
| 450 | * vmw_dx_shader_bind - The DX shader bind callback |
| 451 | * |
| 452 | * @res: The DX shader resource |
| 453 | * @val_buf: Pointer to the validate buffer. |
| 454 | * |
| 455 | */ |
| 456 | static int vmw_dx_shader_bind(struct vmw_resource *res, |
| 457 | struct ttm_validate_buffer *val_buf) |
| 458 | { |
| 459 | struct vmw_private *dev_priv = res->dev_priv; |
| 460 | struct ttm_buffer_object *bo = val_buf->bo; |
| 461 | |
| 462 | BUG_ON(bo->mem.mem_type != VMW_PL_MOB); |
| 463 | mutex_lock(&dev_priv->binding_mutex); |
| 464 | vmw_dx_shader_unscrub(res); |
| 465 | mutex_unlock(&dev_priv->binding_mutex); |
| 466 | |
| 467 | return 0; |
| 468 | } |
| 469 | |
| 470 | /** |
| 471 | * vmw_dx_shader_scrub - Have the device unbind a MOB from a DX shader. |
| 472 | * |
| 473 | * @res: The shader resource |
| 474 | * |
| 475 | * This function unbinds a MOB from the DX shader without requiring the |
| 476 | * MOB dma_buffer to be reserved. The driver still considers the MOB bound. |
| 477 | * However, once the driver eventually decides to unbind the MOB, it doesn't |
| 478 | * need to access the context. |
| 479 | */ |
| 480 | static int vmw_dx_shader_scrub(struct vmw_resource *res) |
| 481 | { |
| 482 | struct vmw_dx_shader *shader = vmw_res_to_dx_shader(res); |
| 483 | struct vmw_private *dev_priv = res->dev_priv; |
| 484 | struct { |
| 485 | SVGA3dCmdHeader header; |
| 486 | SVGA3dCmdDXBindShader body; |
| 487 | } *cmd; |
| 488 | |
| 489 | if (list_empty(&shader->cotable_head)) |
| 490 | return 0; |
| 491 | |
| 492 | WARN_ON_ONCE(!shader->committed); |
| 493 | cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); |
| 494 | if (unlikely(cmd == NULL)) { |
| 495 | DRM_ERROR("Failed reserving FIFO space for shader " |
| 496 | "scrubbing.\n"); |
| 497 | return -ENOMEM; |
| 498 | } |
| 499 | |
| 500 | cmd->header.id = SVGA_3D_CMD_DX_BIND_SHADER; |
| 501 | cmd->header.size = sizeof(cmd->body); |
| 502 | cmd->body.cid = shader->ctx->id; |
| 503 | cmd->body.shid = res->id; |
| 504 | cmd->body.mobid = SVGA3D_INVALID_ID; |
| 505 | cmd->body.offsetInBytes = 0; |
| 506 | vmw_fifo_commit(dev_priv, sizeof(*cmd)); |
| 507 | res->id = -1; |
| 508 | list_del_init(&shader->cotable_head); |
| 509 | |
| 510 | return 0; |
| 511 | } |
| 512 | |
| 513 | /** |
| 514 | * vmw_dx_shader_unbind - The dx shader unbind callback. |
| 515 | * |
| 516 | * @res: The shader resource |
| 517 | * @readback: Whether this is a readback unbind. Currently unused. |
| 518 | * @val_buf: MOB buffer information. |
| 519 | */ |
| 520 | static int vmw_dx_shader_unbind(struct vmw_resource *res, |
| 521 | bool readback, |
| 522 | struct ttm_validate_buffer *val_buf) |
| 523 | { |
| 524 | struct vmw_private *dev_priv = res->dev_priv; |
| 525 | struct vmw_fence_obj *fence; |
| 526 | int ret; |
| 527 | |
| 528 | BUG_ON(res->backup->base.mem.mem_type != VMW_PL_MOB); |
| 529 | |
| 530 | mutex_lock(&dev_priv->binding_mutex); |
| 531 | ret = vmw_dx_shader_scrub(res); |
| 532 | mutex_unlock(&dev_priv->binding_mutex); |
| 533 | |
| 534 | if (ret) |
| 535 | return ret; |
| 536 | |
| 537 | (void) vmw_execbuf_fence_commands(NULL, dev_priv, |
| 538 | &fence, NULL); |
| 539 | vmw_fence_single_bo(val_buf->bo, fence); |
| 540 | |
| 541 | if (likely(fence != NULL)) |
| 542 | vmw_fence_obj_unreference(&fence); |
| 543 | |
| 544 | return 0; |
| 545 | } |
| 546 | |
| 547 | /** |
| 548 | * vmw_dx_shader_cotable_list_scrub - The cotable unbind_func callback for |
| 549 | * DX shaders. |
| 550 | * |
| 551 | * @dev_priv: Pointer to device private structure. |
| 552 | * @list: The list of cotable resources. |
| 553 | * @readback: Whether the call was part of a readback unbind. |
| 554 | * |
| 555 | * Scrubs all shader MOBs so that any subsequent shader unbind or shader |
| 556 | * destroy operation won't need to swap in the context. |
| 557 | */ |
| 558 | void vmw_dx_shader_cotable_list_scrub(struct vmw_private *dev_priv, |
| 559 | struct list_head *list, |
| 560 | bool readback) |
| 561 | { |
| 562 | struct vmw_dx_shader *entry, *next; |
| 563 | |
| 564 | WARN_ON_ONCE(!mutex_is_locked(&dev_priv->binding_mutex)); |
| 565 | |
| 566 | list_for_each_entry_safe(entry, next, list, cotable_head) { |
| 567 | WARN_ON(vmw_dx_shader_scrub(&entry->res)); |
| 568 | if (!readback) |
| 569 | entry->committed = false; |
| 570 | } |
| 571 | } |
| 572 | |
| 573 | /** |
| 574 | * vmw_dx_shader_res_free - The DX shader free callback |
| 575 | * |
| 576 | * @res: The shader resource |
| 577 | * |
| 578 | * Frees the DX shader resource and updates memory accounting. |
| 579 | */ |
| 580 | static void vmw_dx_shader_res_free(struct vmw_resource *res) |
| 581 | { |
| 582 | struct vmw_private *dev_priv = res->dev_priv; |
| 583 | struct vmw_dx_shader *shader = vmw_res_to_dx_shader(res); |
| 584 | |
| 585 | vmw_resource_unreference(&shader->cotable); |
| 586 | kfree(shader); |
| 587 | ttm_mem_global_free(vmw_mem_glob(dev_priv), vmw_shader_dx_size); |
| 588 | } |
| 589 | |
| 590 | /** |
| 591 | * vmw_dx_shader_add - Add a shader resource as a command buffer managed |
| 592 | * resource. |
| 593 | * |
| 594 | * @man: The command buffer resource manager. |
| 595 | * @ctx: Pointer to the context resource. |
| 596 | * @user_key: The id used for this shader. |
| 597 | * @shader_type: The shader type. |
| 598 | * @list: The list of staged command buffer managed resources. |
| 599 | */ |
| 600 | int vmw_dx_shader_add(struct vmw_cmdbuf_res_manager *man, |
| 601 | struct vmw_resource *ctx, |
| 602 | u32 user_key, |
| 603 | SVGA3dShaderType shader_type, |
| 604 | struct list_head *list) |
| 605 | { |
| 606 | struct vmw_dx_shader *shader; |
| 607 | struct vmw_resource *res; |
| 608 | struct vmw_private *dev_priv = ctx->dev_priv; |
| 609 | int ret; |
| 610 | |
| 611 | if (!vmw_shader_dx_size) |
| 612 | vmw_shader_dx_size = ttm_round_pot(sizeof(*shader)); |
| 613 | |
| 614 | if (!vmw_shader_id_ok(user_key, shader_type)) |
| 615 | return -EINVAL; |
| 616 | |
| 617 | ret = ttm_mem_global_alloc(vmw_mem_glob(dev_priv), vmw_shader_dx_size, |
| 618 | false, true); |
| 619 | if (ret) { |
| 620 | if (ret != -ERESTARTSYS) |
| 621 | DRM_ERROR("Out of graphics memory for shader " |
| 622 | "creation.\n"); |
| 623 | return ret; |
| 624 | } |
| 625 | |
| 626 | shader = kmalloc(sizeof(*shader), GFP_KERNEL); |
| 627 | if (!shader) { |
| 628 | ttm_mem_global_free(vmw_mem_glob(dev_priv), vmw_shader_dx_size); |
| 629 | return -ENOMEM; |
| 630 | } |
| 631 | |
| 632 | res = &shader->res; |
| 633 | shader->ctx = ctx; |
| 634 | shader->cotable = vmw_context_cotable(ctx, SVGA_COTABLE_DXSHADER); |
| 635 | shader->id = user_key; |
| 636 | shader->committed = false; |
| 637 | INIT_LIST_HEAD(&shader->cotable_head); |
| 638 | ret = vmw_resource_init(dev_priv, res, true, |
| 639 | vmw_dx_shader_res_free, &vmw_dx_shader_func); |
| 640 | if (ret) |
| 641 | goto out_resource_init; |
| 642 | |
| 643 | /* |
| 644 | * The user_key name-space is not per shader type for DX shaders, |
| 645 | * so when hashing, use a single zero shader type. |
| 646 | */ |
| 647 | ret = vmw_cmdbuf_res_add(man, vmw_cmdbuf_res_shader, |
| 648 | vmw_shader_key(user_key, 0), |
| 649 | res, list); |
| 650 | if (ret) |
| 651 | goto out_resource_init; |
| 652 | |
| 653 | res->id = shader->id; |
| 654 | vmw_resource_activate(res, vmw_hw_shader_destroy); |
| 655 | |
| 656 | out_resource_init: |
| 657 | vmw_resource_unreference(&res); |
| 658 | |
| 659 | return ret; |
| 660 | } |
| 661 | |
| 662 | |
| 663 | |
Thomas Hellstrom | c74c162 | 2012-11-21 12:10:26 +0100 | [diff] [blame] | 664 | /** |
| 665 | * User-space shader management: |
| 666 | */ |
| 667 | |
| 668 | static struct vmw_resource * |
| 669 | vmw_user_shader_base_to_res(struct ttm_base_object *base) |
| 670 | { |
| 671 | return &(container_of(base, struct vmw_user_shader, base)-> |
| 672 | shader.res); |
| 673 | } |
| 674 | |
| 675 | static void vmw_user_shader_free(struct vmw_resource *res) |
| 676 | { |
| 677 | struct vmw_user_shader *ushader = |
| 678 | container_of(res, struct vmw_user_shader, shader.res); |
| 679 | struct vmw_private *dev_priv = res->dev_priv; |
| 680 | |
| 681 | ttm_base_object_kfree(ushader, base); |
| 682 | ttm_mem_global_free(vmw_mem_glob(dev_priv), |
| 683 | vmw_user_shader_size); |
| 684 | } |
| 685 | |
Thomas Hellstrom | 18e4a46 | 2014-06-09 12:39:22 +0200 | [diff] [blame] | 686 | static void vmw_shader_free(struct vmw_resource *res) |
| 687 | { |
| 688 | struct vmw_shader *shader = vmw_res_to_shader(res); |
| 689 | struct vmw_private *dev_priv = res->dev_priv; |
| 690 | |
| 691 | kfree(shader); |
| 692 | ttm_mem_global_free(vmw_mem_glob(dev_priv), |
| 693 | vmw_shader_size); |
| 694 | } |
| 695 | |
Thomas Hellstrom | c74c162 | 2012-11-21 12:10:26 +0100 | [diff] [blame] | 696 | /** |
| 697 | * This function is called when user space has no more references on the |
| 698 | * base object. It releases the base-object's reference on the resource object. |
| 699 | */ |
| 700 | |
| 701 | static void vmw_user_shader_base_release(struct ttm_base_object **p_base) |
| 702 | { |
| 703 | struct ttm_base_object *base = *p_base; |
| 704 | struct vmw_resource *res = vmw_user_shader_base_to_res(base); |
| 705 | |
| 706 | *p_base = NULL; |
| 707 | vmw_resource_unreference(&res); |
| 708 | } |
| 709 | |
| 710 | int vmw_shader_destroy_ioctl(struct drm_device *dev, void *data, |
| 711 | struct drm_file *file_priv) |
| 712 | { |
| 713 | struct drm_vmw_shader_arg *arg = (struct drm_vmw_shader_arg *)data; |
| 714 | struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; |
| 715 | |
| 716 | return ttm_ref_object_base_unref(tfile, arg->handle, |
| 717 | TTM_REF_USAGE); |
| 718 | } |
| 719 | |
Thomas Hellstrom | 18e4a46 | 2014-06-09 12:39:22 +0200 | [diff] [blame] | 720 | static int vmw_user_shader_alloc(struct vmw_private *dev_priv, |
| 721 | struct vmw_dma_buffer *buffer, |
| 722 | size_t shader_size, |
| 723 | size_t offset, |
| 724 | SVGA3dShaderType shader_type, |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 725 | uint8_t num_input_sig, |
| 726 | uint8_t num_output_sig, |
Thomas Hellstrom | 18e4a46 | 2014-06-09 12:39:22 +0200 | [diff] [blame] | 727 | struct ttm_object_file *tfile, |
| 728 | u32 *handle) |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 729 | { |
| 730 | struct vmw_user_shader *ushader; |
| 731 | struct vmw_resource *res, *tmp; |
| 732 | int ret; |
| 733 | |
| 734 | /* |
| 735 | * Approximate idr memory usage with 128 bytes. It will be limited |
| 736 | * by maximum number_of shaders anyway. |
| 737 | */ |
| 738 | if (unlikely(vmw_user_shader_size == 0)) |
| 739 | vmw_user_shader_size = |
| 740 | ttm_round_pot(sizeof(struct vmw_user_shader)) + 128; |
| 741 | |
| 742 | ret = ttm_mem_global_alloc(vmw_mem_glob(dev_priv), |
| 743 | vmw_user_shader_size, |
| 744 | false, true); |
| 745 | if (unlikely(ret != 0)) { |
| 746 | if (ret != -ERESTARTSYS) |
| 747 | DRM_ERROR("Out of graphics memory for shader " |
| 748 | "creation.\n"); |
| 749 | goto out; |
| 750 | } |
| 751 | |
| 752 | ushader = kzalloc(sizeof(*ushader), GFP_KERNEL); |
| 753 | if (unlikely(ushader == NULL)) { |
| 754 | ttm_mem_global_free(vmw_mem_glob(dev_priv), |
| 755 | vmw_user_shader_size); |
| 756 | ret = -ENOMEM; |
| 757 | goto out; |
| 758 | } |
| 759 | |
| 760 | res = &ushader->shader.res; |
| 761 | ushader->base.shareable = false; |
| 762 | ushader->base.tfile = NULL; |
| 763 | |
| 764 | /* |
| 765 | * From here on, the destructor takes over resource freeing. |
| 766 | */ |
| 767 | |
| 768 | ret = vmw_gb_shader_init(dev_priv, res, shader_size, |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 769 | offset, shader_type, num_input_sig, |
| 770 | num_output_sig, buffer, |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 771 | vmw_user_shader_free); |
| 772 | if (unlikely(ret != 0)) |
| 773 | goto out; |
| 774 | |
| 775 | tmp = vmw_resource_reference(res); |
| 776 | ret = ttm_base_object_init(tfile, &ushader->base, false, |
| 777 | VMW_RES_SHADER, |
| 778 | &vmw_user_shader_base_release, NULL); |
| 779 | |
| 780 | if (unlikely(ret != 0)) { |
| 781 | vmw_resource_unreference(&tmp); |
| 782 | goto out_err; |
| 783 | } |
| 784 | |
| 785 | if (handle) |
| 786 | *handle = ushader->base.hash.key; |
| 787 | out_err: |
| 788 | vmw_resource_unreference(&res); |
| 789 | out: |
| 790 | return ret; |
| 791 | } |
| 792 | |
| 793 | |
Thomas Hellstrom | b9eb1a6 | 2015-04-02 02:39:45 -0700 | [diff] [blame] | 794 | static struct vmw_resource *vmw_shader_alloc(struct vmw_private *dev_priv, |
| 795 | struct vmw_dma_buffer *buffer, |
| 796 | size_t shader_size, |
| 797 | size_t offset, |
| 798 | SVGA3dShaderType shader_type) |
Thomas Hellstrom | 18e4a46 | 2014-06-09 12:39:22 +0200 | [diff] [blame] | 799 | { |
| 800 | struct vmw_shader *shader; |
| 801 | struct vmw_resource *res; |
| 802 | int ret; |
| 803 | |
| 804 | /* |
| 805 | * Approximate idr memory usage with 128 bytes. It will be limited |
| 806 | * by maximum number_of shaders anyway. |
| 807 | */ |
| 808 | if (unlikely(vmw_shader_size == 0)) |
| 809 | vmw_shader_size = |
| 810 | ttm_round_pot(sizeof(struct vmw_shader)) + 128; |
| 811 | |
| 812 | ret = ttm_mem_global_alloc(vmw_mem_glob(dev_priv), |
| 813 | vmw_shader_size, |
| 814 | false, true); |
| 815 | if (unlikely(ret != 0)) { |
| 816 | if (ret != -ERESTARTSYS) |
| 817 | DRM_ERROR("Out of graphics memory for shader " |
| 818 | "creation.\n"); |
| 819 | goto out_err; |
| 820 | } |
| 821 | |
| 822 | shader = kzalloc(sizeof(*shader), GFP_KERNEL); |
| 823 | if (unlikely(shader == NULL)) { |
| 824 | ttm_mem_global_free(vmw_mem_glob(dev_priv), |
| 825 | vmw_shader_size); |
| 826 | ret = -ENOMEM; |
| 827 | goto out_err; |
| 828 | } |
| 829 | |
| 830 | res = &shader->res; |
| 831 | |
| 832 | /* |
| 833 | * From here on, the destructor takes over resource freeing. |
| 834 | */ |
| 835 | ret = vmw_gb_shader_init(dev_priv, res, shader_size, |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 836 | offset, shader_type, 0, 0, buffer, |
Thomas Hellstrom | 18e4a46 | 2014-06-09 12:39:22 +0200 | [diff] [blame] | 837 | vmw_shader_free); |
| 838 | |
| 839 | out_err: |
| 840 | return ret ? ERR_PTR(ret) : res; |
| 841 | } |
| 842 | |
| 843 | |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 844 | static int vmw_shader_define(struct drm_device *dev, struct drm_file *file_priv, |
| 845 | enum drm_vmw_shader_type shader_type_drm, |
| 846 | u32 buffer_handle, size_t size, size_t offset, |
| 847 | uint8_t num_input_sig, uint8_t num_output_sig, |
| 848 | uint32_t *shader_handle) |
Thomas Hellstrom | c74c162 | 2012-11-21 12:10:26 +0100 | [diff] [blame] | 849 | { |
| 850 | struct vmw_private *dev_priv = vmw_priv(dev); |
Thomas Hellstrom | c74c162 | 2012-11-21 12:10:26 +0100 | [diff] [blame] | 851 | struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; |
Thomas Hellstrom | c74c162 | 2012-11-21 12:10:26 +0100 | [diff] [blame] | 852 | struct vmw_dma_buffer *buffer = NULL; |
| 853 | SVGA3dShaderType shader_type; |
| 854 | int ret; |
| 855 | |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 856 | if (buffer_handle != SVGA3D_INVALID_ID) { |
| 857 | ret = vmw_user_dmabuf_lookup(tfile, buffer_handle, |
Thomas Hellstrom | 54c12bc | 2015-09-14 01:13:11 -0700 | [diff] [blame] | 858 | &buffer, NULL); |
Thomas Hellstrom | c74c162 | 2012-11-21 12:10:26 +0100 | [diff] [blame] | 859 | if (unlikely(ret != 0)) { |
| 860 | DRM_ERROR("Could not find buffer for shader " |
| 861 | "creation.\n"); |
| 862 | return ret; |
| 863 | } |
| 864 | |
| 865 | if ((u64)buffer->base.num_pages * PAGE_SIZE < |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 866 | (u64)size + (u64)offset) { |
Thomas Hellstrom | c74c162 | 2012-11-21 12:10:26 +0100 | [diff] [blame] | 867 | DRM_ERROR("Illegal buffer- or shader size.\n"); |
| 868 | ret = -EINVAL; |
| 869 | goto out_bad_arg; |
| 870 | } |
| 871 | } |
| 872 | |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 873 | switch (shader_type_drm) { |
Thomas Hellstrom | c74c162 | 2012-11-21 12:10:26 +0100 | [diff] [blame] | 874 | case drm_vmw_shader_type_vs: |
| 875 | shader_type = SVGA3D_SHADERTYPE_VS; |
| 876 | break; |
| 877 | case drm_vmw_shader_type_ps: |
| 878 | shader_type = SVGA3D_SHADERTYPE_PS; |
| 879 | break; |
Thomas Hellstrom | c74c162 | 2012-11-21 12:10:26 +0100 | [diff] [blame] | 880 | default: |
| 881 | DRM_ERROR("Illegal shader type.\n"); |
| 882 | ret = -EINVAL; |
| 883 | goto out_bad_arg; |
| 884 | } |
| 885 | |
Thomas Hellstrom | 294adf7 | 2014-02-27 12:34:51 +0100 | [diff] [blame] | 886 | ret = ttm_read_lock(&dev_priv->reservation_sem, true); |
Thomas Hellstrom | c74c162 | 2012-11-21 12:10:26 +0100 | [diff] [blame] | 887 | if (unlikely(ret != 0)) |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 888 | goto out_bad_arg; |
Thomas Hellstrom | c74c162 | 2012-11-21 12:10:26 +0100 | [diff] [blame] | 889 | |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 890 | ret = vmw_user_shader_alloc(dev_priv, buffer, size, offset, |
| 891 | shader_type, num_input_sig, |
| 892 | num_output_sig, tfile, shader_handle); |
Thomas Hellstrom | c74c162 | 2012-11-21 12:10:26 +0100 | [diff] [blame] | 893 | |
Thomas Hellstrom | 294adf7 | 2014-02-27 12:34:51 +0100 | [diff] [blame] | 894 | ttm_read_unlock(&dev_priv->reservation_sem); |
Thomas Hellstrom | c74c162 | 2012-11-21 12:10:26 +0100 | [diff] [blame] | 895 | out_bad_arg: |
| 896 | vmw_dmabuf_unreference(&buffer); |
Thomas Hellstrom | c74c162 | 2012-11-21 12:10:26 +0100 | [diff] [blame] | 897 | return ret; |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 898 | } |
Thomas Hellstrom | c74c162 | 2012-11-21 12:10:26 +0100 | [diff] [blame] | 899 | |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 900 | /** |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 901 | * vmw_shader_id_ok - Check whether a compat shader user key and |
Thomas Hellstrom | 18e4a46 | 2014-06-09 12:39:22 +0200 | [diff] [blame] | 902 | * shader type are within valid bounds. |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 903 | * |
Thomas Hellstrom | 18e4a46 | 2014-06-09 12:39:22 +0200 | [diff] [blame] | 904 | * @user_key: User space id of the shader. |
| 905 | * @shader_type: Shader type. |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 906 | * |
Thomas Hellstrom | 18e4a46 | 2014-06-09 12:39:22 +0200 | [diff] [blame] | 907 | * Returns true if valid false if not. |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 908 | */ |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 909 | static bool vmw_shader_id_ok(u32 user_key, SVGA3dShaderType shader_type) |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 910 | { |
Thomas Hellstrom | 18e4a46 | 2014-06-09 12:39:22 +0200 | [diff] [blame] | 911 | return user_key <= ((1 << 20) - 1) && (unsigned) shader_type < 16; |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 912 | } |
| 913 | |
| 914 | /** |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 915 | * vmw_shader_key - Compute a hash key suitable for a compat shader. |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 916 | * |
Thomas Hellstrom | 18e4a46 | 2014-06-09 12:39:22 +0200 | [diff] [blame] | 917 | * @user_key: User space id of the shader. |
| 918 | * @shader_type: Shader type. |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 919 | * |
Thomas Hellstrom | 18e4a46 | 2014-06-09 12:39:22 +0200 | [diff] [blame] | 920 | * Returns a hash key suitable for a command buffer managed resource |
| 921 | * manager hash table. |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 922 | */ |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 923 | static u32 vmw_shader_key(u32 user_key, SVGA3dShaderType shader_type) |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 924 | { |
Thomas Hellstrom | 18e4a46 | 2014-06-09 12:39:22 +0200 | [diff] [blame] | 925 | return user_key | (shader_type << 20); |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 926 | } |
| 927 | |
| 928 | /** |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 929 | * vmw_shader_remove - Stage a compat shader for removal. |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 930 | * |
Thomas Hellstrom | 18e4a46 | 2014-06-09 12:39:22 +0200 | [diff] [blame] | 931 | * @man: Pointer to the compat shader manager identifying the shader namespace. |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 932 | * @user_key: The key that is used to identify the shader. The key is |
| 933 | * unique to the shader type. |
| 934 | * @shader_type: Shader type. |
Thomas Hellstrom | 18e4a46 | 2014-06-09 12:39:22 +0200 | [diff] [blame] | 935 | * @list: Caller's list of staged command buffer resource actions. |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 936 | */ |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 937 | int vmw_shader_remove(struct vmw_cmdbuf_res_manager *man, |
| 938 | u32 user_key, SVGA3dShaderType shader_type, |
| 939 | struct list_head *list) |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 940 | { |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 941 | struct vmw_resource *dummy; |
| 942 | |
| 943 | if (!vmw_shader_id_ok(user_key, shader_type)) |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 944 | return -EINVAL; |
| 945 | |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 946 | return vmw_cmdbuf_res_remove(man, vmw_cmdbuf_res_shader, |
| 947 | vmw_shader_key(user_key, shader_type), |
| 948 | list, &dummy); |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 949 | } |
| 950 | |
| 951 | /** |
Thomas Hellstrom | 18e4a46 | 2014-06-09 12:39:22 +0200 | [diff] [blame] | 952 | * vmw_compat_shader_add - Create a compat shader and stage it for addition |
| 953 | * as a command buffer managed resource. |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 954 | * |
Thomas Hellstrom | 18e4a46 | 2014-06-09 12:39:22 +0200 | [diff] [blame] | 955 | * @man: Pointer to the compat shader manager identifying the shader namespace. |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 956 | * @user_key: The key that is used to identify the shader. The key is |
| 957 | * unique to the shader type. |
| 958 | * @bytecode: Pointer to the bytecode of the shader. |
| 959 | * @shader_type: Shader type. |
| 960 | * @tfile: Pointer to a struct ttm_object_file that the guest-backed shader is |
| 961 | * to be created with. |
Thomas Hellstrom | 18e4a46 | 2014-06-09 12:39:22 +0200 | [diff] [blame] | 962 | * @list: Caller's list of staged command buffer resource actions. |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 963 | * |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 964 | */ |
Thomas Hellstrom | 18e4a46 | 2014-06-09 12:39:22 +0200 | [diff] [blame] | 965 | int vmw_compat_shader_add(struct vmw_private *dev_priv, |
| 966 | struct vmw_cmdbuf_res_manager *man, |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 967 | u32 user_key, const void *bytecode, |
| 968 | SVGA3dShaderType shader_type, |
| 969 | size_t size, |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 970 | struct list_head *list) |
| 971 | { |
| 972 | struct vmw_dma_buffer *buf; |
| 973 | struct ttm_bo_kmap_obj map; |
| 974 | bool is_iomem; |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 975 | int ret; |
Thomas Hellstrom | 18e4a46 | 2014-06-09 12:39:22 +0200 | [diff] [blame] | 976 | struct vmw_resource *res; |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 977 | |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 978 | if (!vmw_shader_id_ok(user_key, shader_type)) |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 979 | return -EINVAL; |
| 980 | |
| 981 | /* Allocate and pin a DMA buffer */ |
| 982 | buf = kzalloc(sizeof(*buf), GFP_KERNEL); |
| 983 | if (unlikely(buf == NULL)) |
| 984 | return -ENOMEM; |
| 985 | |
Thomas Hellstrom | 18e4a46 | 2014-06-09 12:39:22 +0200 | [diff] [blame] | 986 | ret = vmw_dmabuf_init(dev_priv, buf, size, &vmw_sys_ne_placement, |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 987 | true, vmw_dmabuf_bo_free); |
| 988 | if (unlikely(ret != 0)) |
| 989 | goto out; |
| 990 | |
| 991 | ret = ttm_bo_reserve(&buf->base, false, true, false, NULL); |
| 992 | if (unlikely(ret != 0)) |
| 993 | goto no_reserve; |
| 994 | |
| 995 | /* Map and copy shader bytecode. */ |
| 996 | ret = ttm_bo_kmap(&buf->base, 0, PAGE_ALIGN(size) >> PAGE_SHIFT, |
| 997 | &map); |
| 998 | if (unlikely(ret != 0)) { |
| 999 | ttm_bo_unreserve(&buf->base); |
| 1000 | goto no_reserve; |
| 1001 | } |
| 1002 | |
| 1003 | memcpy(ttm_kmap_obj_virtual(&map, &is_iomem), bytecode, size); |
| 1004 | WARN_ON(is_iomem); |
| 1005 | |
| 1006 | ttm_bo_kunmap(&map); |
| 1007 | ret = ttm_bo_validate(&buf->base, &vmw_sys_placement, false, true); |
| 1008 | WARN_ON(ret != 0); |
| 1009 | ttm_bo_unreserve(&buf->base); |
| 1010 | |
Thomas Hellstrom | 18e4a46 | 2014-06-09 12:39:22 +0200 | [diff] [blame] | 1011 | res = vmw_shader_alloc(dev_priv, buf, size, 0, shader_type); |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 1012 | if (unlikely(ret != 0)) |
| 1013 | goto no_reserve; |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 1014 | |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 1015 | ret = vmw_cmdbuf_res_add(man, vmw_cmdbuf_res_shader, |
| 1016 | vmw_shader_key(user_key, shader_type), |
Thomas Hellstrom | 18e4a46 | 2014-06-09 12:39:22 +0200 | [diff] [blame] | 1017 | res, list); |
| 1018 | vmw_resource_unreference(&res); |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 1019 | no_reserve: |
Thomas Hellstrom | 18e4a46 | 2014-06-09 12:39:22 +0200 | [diff] [blame] | 1020 | vmw_dmabuf_unreference(&buf); |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 1021 | out: |
| 1022 | return ret; |
| 1023 | } |
| 1024 | |
| 1025 | /** |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 1026 | * vmw_shader_lookup - Look up a compat shader |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 1027 | * |
Thomas Hellstrom | 18e4a46 | 2014-06-09 12:39:22 +0200 | [diff] [blame] | 1028 | * @man: Pointer to the command buffer managed resource manager identifying |
| 1029 | * the shader namespace. |
| 1030 | * @user_key: The user space id of the shader. |
| 1031 | * @shader_type: The shader type. |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 1032 | * |
Thomas Hellstrom | 18e4a46 | 2014-06-09 12:39:22 +0200 | [diff] [blame] | 1033 | * Returns a refcounted pointer to a struct vmw_resource if the shader was |
| 1034 | * found. An error pointer otherwise. |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 1035 | */ |
Thomas Hellstrom | 18e4a46 | 2014-06-09 12:39:22 +0200 | [diff] [blame] | 1036 | struct vmw_resource * |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 1037 | vmw_shader_lookup(struct vmw_cmdbuf_res_manager *man, |
| 1038 | u32 user_key, |
| 1039 | SVGA3dShaderType shader_type) |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 1040 | { |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 1041 | if (!vmw_shader_id_ok(user_key, shader_type)) |
Thomas Hellstrom | 18e4a46 | 2014-06-09 12:39:22 +0200 | [diff] [blame] | 1042 | return ERR_PTR(-EINVAL); |
Thomas Hellstrom | d5bde95 | 2014-01-31 10:12:10 +0100 | [diff] [blame] | 1043 | |
Thomas Hellstrom | d80efd5 | 2015-08-10 10:39:35 -0700 | [diff] [blame] | 1044 | return vmw_cmdbuf_res_lookup(man, vmw_cmdbuf_res_shader, |
| 1045 | vmw_shader_key(user_key, shader_type)); |
| 1046 | } |
| 1047 | |
| 1048 | int vmw_shader_define_ioctl(struct drm_device *dev, void *data, |
| 1049 | struct drm_file *file_priv) |
| 1050 | { |
| 1051 | struct drm_vmw_shader_create_arg *arg = |
| 1052 | (struct drm_vmw_shader_create_arg *)data; |
| 1053 | |
| 1054 | return vmw_shader_define(dev, file_priv, arg->shader_type, |
| 1055 | arg->buffer_handle, |
| 1056 | arg->size, arg->offset, |
| 1057 | 0, 0, |
| 1058 | &arg->shader_handle); |
Thomas Hellstrom | c74c162 | 2012-11-21 12:10:26 +0100 | [diff] [blame] | 1059 | } |