Dirk Hohndel (VMware) | dff9688 | 2018-05-07 01:16:26 +0200 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0 OR MIT |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 2 | /************************************************************************** |
| 3 | * |
Dirk Hohndel (VMware) | dff9688 | 2018-05-07 01:16:26 +0200 | [diff] [blame] | 4 | * Copyright 2009-2015 VMware, Inc., Palo Alto, CA., USA |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 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" |
David Howells | 760285e | 2012-10-02 18:01:07 +0100 | [diff] [blame] | 29 | #include <drm/ttm/ttm_bo_driver.h> |
| 30 | #include <drm/ttm/ttm_placement.h> |
| 31 | #include <drm/ttm/ttm_page_alloc.h> |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 32 | |
Arvind Yadav | 9036f8c | 2017-07-17 07:39:53 -0700 | [diff] [blame] | 33 | static const struct ttm_place vram_placement_flags = { |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 34 | .fpfn = 0, |
| 35 | .lpfn = 0, |
Christian König | f1217ed | 2014-08-27 13:16:04 +0200 | [diff] [blame] | 36 | .flags = TTM_PL_FLAG_VRAM | TTM_PL_FLAG_CACHED |
| 37 | }; |
| 38 | |
Arvind Yadav | 9036f8c | 2017-07-17 07:39:53 -0700 | [diff] [blame] | 39 | static const struct ttm_place vram_ne_placement_flags = { |
Christian König | f1217ed | 2014-08-27 13:16:04 +0200 | [diff] [blame] | 40 | .fpfn = 0, |
| 41 | .lpfn = 0, |
| 42 | .flags = TTM_PL_FLAG_VRAM | TTM_PL_FLAG_CACHED | TTM_PL_FLAG_NO_EVICT |
| 43 | }; |
| 44 | |
Arvind Yadav | 9036f8c | 2017-07-17 07:39:53 -0700 | [diff] [blame] | 45 | static const struct ttm_place sys_placement_flags = { |
Christian König | f1217ed | 2014-08-27 13:16:04 +0200 | [diff] [blame] | 46 | .fpfn = 0, |
| 47 | .lpfn = 0, |
| 48 | .flags = TTM_PL_FLAG_SYSTEM | TTM_PL_FLAG_CACHED |
| 49 | }; |
| 50 | |
Arvind Yadav | 9036f8c | 2017-07-17 07:39:53 -0700 | [diff] [blame] | 51 | static const struct ttm_place sys_ne_placement_flags = { |
Christian König | f1217ed | 2014-08-27 13:16:04 +0200 | [diff] [blame] | 52 | .fpfn = 0, |
| 53 | .lpfn = 0, |
| 54 | .flags = TTM_PL_FLAG_SYSTEM | TTM_PL_FLAG_CACHED | TTM_PL_FLAG_NO_EVICT |
| 55 | }; |
| 56 | |
Arvind Yadav | 9036f8c | 2017-07-17 07:39:53 -0700 | [diff] [blame] | 57 | static const struct ttm_place gmr_placement_flags = { |
Christian König | f1217ed | 2014-08-27 13:16:04 +0200 | [diff] [blame] | 58 | .fpfn = 0, |
| 59 | .lpfn = 0, |
| 60 | .flags = VMW_PL_FLAG_GMR | TTM_PL_FLAG_CACHED |
| 61 | }; |
| 62 | |
Arvind Yadav | 9036f8c | 2017-07-17 07:39:53 -0700 | [diff] [blame] | 63 | static const struct ttm_place gmr_ne_placement_flags = { |
Christian König | f1217ed | 2014-08-27 13:16:04 +0200 | [diff] [blame] | 64 | .fpfn = 0, |
| 65 | .lpfn = 0, |
| 66 | .flags = VMW_PL_FLAG_GMR | TTM_PL_FLAG_CACHED | TTM_PL_FLAG_NO_EVICT |
| 67 | }; |
| 68 | |
Arvind Yadav | 9036f8c | 2017-07-17 07:39:53 -0700 | [diff] [blame] | 69 | static const struct ttm_place mob_placement_flags = { |
Christian König | f1217ed | 2014-08-27 13:16:04 +0200 | [diff] [blame] | 70 | .fpfn = 0, |
| 71 | .lpfn = 0, |
| 72 | .flags = VMW_PL_FLAG_MOB | TTM_PL_FLAG_CACHED |
| 73 | }; |
| 74 | |
Arvind Yadav | 9036f8c | 2017-07-17 07:39:53 -0700 | [diff] [blame] | 75 | static const struct ttm_place mob_ne_placement_flags = { |
Thomas Hellstrom | 3eab3d9 | 2015-06-25 11:57:56 -0700 | [diff] [blame] | 76 | .fpfn = 0, |
| 77 | .lpfn = 0, |
| 78 | .flags = VMW_PL_FLAG_MOB | TTM_PL_FLAG_CACHED | TTM_PL_FLAG_NO_EVICT |
| 79 | }; |
| 80 | |
Christian König | f1217ed | 2014-08-27 13:16:04 +0200 | [diff] [blame] | 81 | struct ttm_placement vmw_vram_placement = { |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 82 | .num_placement = 1, |
| 83 | .placement = &vram_placement_flags, |
| 84 | .num_busy_placement = 1, |
| 85 | .busy_placement = &vram_placement_flags |
| 86 | }; |
| 87 | |
Arvind Yadav | 9036f8c | 2017-07-17 07:39:53 -0700 | [diff] [blame] | 88 | static const struct ttm_place vram_gmr_placement_flags[] = { |
Christian König | f1217ed | 2014-08-27 13:16:04 +0200 | [diff] [blame] | 89 | { |
| 90 | .fpfn = 0, |
| 91 | .lpfn = 0, |
| 92 | .flags = TTM_PL_FLAG_VRAM | TTM_PL_FLAG_CACHED |
| 93 | }, { |
| 94 | .fpfn = 0, |
| 95 | .lpfn = 0, |
| 96 | .flags = VMW_PL_FLAG_GMR | TTM_PL_FLAG_CACHED |
| 97 | } |
Thomas Hellstrom | 135cba0 | 2010-10-26 21:21:47 +0200 | [diff] [blame] | 98 | }; |
| 99 | |
Arvind Yadav | 9036f8c | 2017-07-17 07:39:53 -0700 | [diff] [blame] | 100 | static const struct ttm_place gmr_vram_placement_flags[] = { |
Christian König | f1217ed | 2014-08-27 13:16:04 +0200 | [diff] [blame] | 101 | { |
| 102 | .fpfn = 0, |
| 103 | .lpfn = 0, |
| 104 | .flags = VMW_PL_FLAG_GMR | TTM_PL_FLAG_CACHED |
| 105 | }, { |
| 106 | .fpfn = 0, |
| 107 | .lpfn = 0, |
| 108 | .flags = TTM_PL_FLAG_VRAM | TTM_PL_FLAG_CACHED |
| 109 | } |
Thomas Hellstrom | 5bb39e8 | 2011-10-04 20:13:33 +0200 | [diff] [blame] | 110 | }; |
| 111 | |
Thomas Hellstrom | 135cba0 | 2010-10-26 21:21:47 +0200 | [diff] [blame] | 112 | struct ttm_placement vmw_vram_gmr_placement = { |
Thomas Hellstrom | 135cba0 | 2010-10-26 21:21:47 +0200 | [diff] [blame] | 113 | .num_placement = 2, |
| 114 | .placement = vram_gmr_placement_flags, |
| 115 | .num_busy_placement = 1, |
| 116 | .busy_placement = &gmr_placement_flags |
| 117 | }; |
| 118 | |
Arvind Yadav | 9036f8c | 2017-07-17 07:39:53 -0700 | [diff] [blame] | 119 | static const struct ttm_place vram_gmr_ne_placement_flags[] = { |
Christian König | f1217ed | 2014-08-27 13:16:04 +0200 | [diff] [blame] | 120 | { |
| 121 | .fpfn = 0, |
| 122 | .lpfn = 0, |
| 123 | .flags = TTM_PL_FLAG_VRAM | TTM_PL_FLAG_CACHED | |
| 124 | TTM_PL_FLAG_NO_EVICT |
| 125 | }, { |
| 126 | .fpfn = 0, |
| 127 | .lpfn = 0, |
| 128 | .flags = VMW_PL_FLAG_GMR | TTM_PL_FLAG_CACHED | |
| 129 | TTM_PL_FLAG_NO_EVICT |
| 130 | } |
Jakob Bornecrantz | d991ef0 | 2011-10-04 20:13:21 +0200 | [diff] [blame] | 131 | }; |
| 132 | |
| 133 | struct ttm_placement vmw_vram_gmr_ne_placement = { |
Jakob Bornecrantz | d991ef0 | 2011-10-04 20:13:21 +0200 | [diff] [blame] | 134 | .num_placement = 2, |
| 135 | .placement = vram_gmr_ne_placement_flags, |
| 136 | .num_busy_placement = 1, |
| 137 | .busy_placement = &gmr_ne_placement_flags |
| 138 | }; |
| 139 | |
Thomas Hellstrom | 8ba5152 | 2010-01-16 16:05:05 +0100 | [diff] [blame] | 140 | struct ttm_placement vmw_vram_sys_placement = { |
Thomas Hellstrom | 8ba5152 | 2010-01-16 16:05:05 +0100 | [diff] [blame] | 141 | .num_placement = 1, |
| 142 | .placement = &vram_placement_flags, |
| 143 | .num_busy_placement = 1, |
| 144 | .busy_placement = &sys_placement_flags |
| 145 | }; |
| 146 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 147 | struct ttm_placement vmw_vram_ne_placement = { |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 148 | .num_placement = 1, |
| 149 | .placement = &vram_ne_placement_flags, |
| 150 | .num_busy_placement = 1, |
| 151 | .busy_placement = &vram_ne_placement_flags |
| 152 | }; |
| 153 | |
| 154 | struct ttm_placement vmw_sys_placement = { |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 155 | .num_placement = 1, |
| 156 | .placement = &sys_placement_flags, |
| 157 | .num_busy_placement = 1, |
| 158 | .busy_placement = &sys_placement_flags |
| 159 | }; |
| 160 | |
Thomas Hellstrom | 3530bdc | 2012-11-21 10:49:52 +0100 | [diff] [blame] | 161 | struct ttm_placement vmw_sys_ne_placement = { |
Thomas Hellstrom | 3530bdc | 2012-11-21 10:49:52 +0100 | [diff] [blame] | 162 | .num_placement = 1, |
| 163 | .placement = &sys_ne_placement_flags, |
| 164 | .num_busy_placement = 1, |
| 165 | .busy_placement = &sys_ne_placement_flags |
| 166 | }; |
| 167 | |
Arvind Yadav | 9036f8c | 2017-07-17 07:39:53 -0700 | [diff] [blame] | 168 | static const struct ttm_place evictable_placement_flags[] = { |
Christian König | f1217ed | 2014-08-27 13:16:04 +0200 | [diff] [blame] | 169 | { |
| 170 | .fpfn = 0, |
| 171 | .lpfn = 0, |
| 172 | .flags = TTM_PL_FLAG_SYSTEM | TTM_PL_FLAG_CACHED |
| 173 | }, { |
| 174 | .fpfn = 0, |
| 175 | .lpfn = 0, |
| 176 | .flags = TTM_PL_FLAG_VRAM | TTM_PL_FLAG_CACHED |
| 177 | }, { |
| 178 | .fpfn = 0, |
| 179 | .lpfn = 0, |
| 180 | .flags = VMW_PL_FLAG_GMR | TTM_PL_FLAG_CACHED |
| 181 | }, { |
| 182 | .fpfn = 0, |
| 183 | .lpfn = 0, |
| 184 | .flags = VMW_PL_FLAG_MOB | TTM_PL_FLAG_CACHED |
| 185 | } |
Jakob Bornecrantz | d991ef0 | 2011-10-04 20:13:21 +0200 | [diff] [blame] | 186 | }; |
| 187 | |
Thomas Hellstrom | ef86cfe | 2018-01-16 11:07:30 +0100 | [diff] [blame] | 188 | static const struct ttm_place nonfixed_placement_flags[] = { |
| 189 | { |
| 190 | .fpfn = 0, |
| 191 | .lpfn = 0, |
| 192 | .flags = TTM_PL_FLAG_SYSTEM | TTM_PL_FLAG_CACHED |
| 193 | }, { |
| 194 | .fpfn = 0, |
| 195 | .lpfn = 0, |
| 196 | .flags = VMW_PL_FLAG_GMR | TTM_PL_FLAG_CACHED |
| 197 | }, { |
| 198 | .fpfn = 0, |
| 199 | .lpfn = 0, |
| 200 | .flags = VMW_PL_FLAG_MOB | TTM_PL_FLAG_CACHED |
| 201 | } |
| 202 | }; |
| 203 | |
Jakob Bornecrantz | d991ef0 | 2011-10-04 20:13:21 +0200 | [diff] [blame] | 204 | struct ttm_placement vmw_evictable_placement = { |
Thomas Hellstrom | 6da768a | 2012-11-21 11:06:22 +0100 | [diff] [blame] | 205 | .num_placement = 4, |
Jakob Bornecrantz | d991ef0 | 2011-10-04 20:13:21 +0200 | [diff] [blame] | 206 | .placement = evictable_placement_flags, |
| 207 | .num_busy_placement = 1, |
| 208 | .busy_placement = &sys_placement_flags |
| 209 | }; |
| 210 | |
Thomas Hellstrom | 5bb39e8 | 2011-10-04 20:13:33 +0200 | [diff] [blame] | 211 | struct ttm_placement vmw_srf_placement = { |
Thomas Hellstrom | 5bb39e8 | 2011-10-04 20:13:33 +0200 | [diff] [blame] | 212 | .num_placement = 1, |
| 213 | .num_busy_placement = 2, |
| 214 | .placement = &gmr_placement_flags, |
| 215 | .busy_placement = gmr_vram_placement_flags |
| 216 | }; |
| 217 | |
Thomas Hellstrom | 6da768a | 2012-11-21 11:06:22 +0100 | [diff] [blame] | 218 | struct ttm_placement vmw_mob_placement = { |
Thomas Hellstrom | 6da768a | 2012-11-21 11:06:22 +0100 | [diff] [blame] | 219 | .num_placement = 1, |
| 220 | .num_busy_placement = 1, |
| 221 | .placement = &mob_placement_flags, |
| 222 | .busy_placement = &mob_placement_flags |
| 223 | }; |
| 224 | |
Thomas Hellstrom | 3eab3d9 | 2015-06-25 11:57:56 -0700 | [diff] [blame] | 225 | struct ttm_placement vmw_mob_ne_placement = { |
| 226 | .num_placement = 1, |
| 227 | .num_busy_placement = 1, |
| 228 | .placement = &mob_ne_placement_flags, |
| 229 | .busy_placement = &mob_ne_placement_flags |
| 230 | }; |
| 231 | |
Thomas Hellstrom | ef86cfe | 2018-01-16 11:07:30 +0100 | [diff] [blame] | 232 | struct ttm_placement vmw_nonfixed_placement = { |
| 233 | .num_placement = 3, |
| 234 | .placement = nonfixed_placement_flags, |
| 235 | .num_busy_placement = 1, |
| 236 | .busy_placement = &sys_placement_flags |
| 237 | }; |
| 238 | |
Jerome Glisse | 649bf3c | 2011-11-01 20:46:13 -0400 | [diff] [blame] | 239 | struct vmw_ttm_tt { |
Thomas Hellstrom | d92d985 | 2013-10-24 01:49:26 -0700 | [diff] [blame] | 240 | struct ttm_dma_tt dma_ttm; |
Thomas Hellstrom | 135cba0 | 2010-10-26 21:21:47 +0200 | [diff] [blame] | 241 | struct vmw_private *dev_priv; |
| 242 | int gmr_id; |
Thomas Hellstrom | 6da768a | 2012-11-21 11:06:22 +0100 | [diff] [blame] | 243 | struct vmw_mob *mob; |
| 244 | int mem_type; |
Thomas Hellstrom | d92d985 | 2013-10-24 01:49:26 -0700 | [diff] [blame] | 245 | struct sg_table sgt; |
| 246 | struct vmw_sg_table vsgt; |
| 247 | uint64_t sg_alloc_size; |
| 248 | bool mapped; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 249 | }; |
| 250 | |
Thomas Hellstrom | 308d17e | 2013-11-28 01:46:56 -0800 | [diff] [blame] | 251 | const size_t vmw_tt_size = sizeof(struct vmw_ttm_tt); |
| 252 | |
Thomas Hellstrom | d92d985 | 2013-10-24 01:49:26 -0700 | [diff] [blame] | 253 | /** |
| 254 | * Helper functions to advance a struct vmw_piter iterator. |
| 255 | * |
| 256 | * @viter: Pointer to the iterator. |
| 257 | * |
| 258 | * These functions return false if past the end of the list, |
| 259 | * true otherwise. Functions are selected depending on the current |
| 260 | * DMA mapping mode. |
| 261 | */ |
| 262 | static bool __vmw_piter_non_sg_next(struct vmw_piter *viter) |
| 263 | { |
| 264 | return ++(viter->i) < viter->num_pages; |
| 265 | } |
| 266 | |
| 267 | static bool __vmw_piter_sg_next(struct vmw_piter *viter) |
| 268 | { |
Thomas Hellstrom | 8dc39cf | 2019-05-15 17:45:23 +0200 | [diff] [blame] | 269 | bool ret = __vmw_piter_non_sg_next(viter); |
| 270 | |
| 271 | return __sg_page_iter_dma_next(&viter->iter) && ret; |
Thomas Hellstrom | d92d985 | 2013-10-24 01:49:26 -0700 | [diff] [blame] | 272 | } |
| 273 | |
| 274 | |
| 275 | /** |
| 276 | * Helper functions to return a pointer to the current page. |
| 277 | * |
| 278 | * @viter: Pointer to the iterator |
| 279 | * |
| 280 | * These functions return a pointer to the page currently |
| 281 | * pointed to by @viter. Functions are selected depending on the |
| 282 | * current mapping mode. |
| 283 | */ |
| 284 | static struct page *__vmw_piter_non_sg_page(struct vmw_piter *viter) |
| 285 | { |
| 286 | return viter->pages[viter->i]; |
| 287 | } |
| 288 | |
Thomas Hellstrom | d92d985 | 2013-10-24 01:49:26 -0700 | [diff] [blame] | 289 | /** |
| 290 | * Helper functions to return the DMA address of the current page. |
| 291 | * |
| 292 | * @viter: Pointer to the iterator |
| 293 | * |
| 294 | * These functions return the DMA address of the page currently |
| 295 | * pointed to by @viter. Functions are selected depending on the |
| 296 | * current mapping mode. |
| 297 | */ |
| 298 | static dma_addr_t __vmw_piter_phys_addr(struct vmw_piter *viter) |
| 299 | { |
| 300 | return page_to_phys(viter->pages[viter->i]); |
| 301 | } |
| 302 | |
| 303 | static dma_addr_t __vmw_piter_dma_addr(struct vmw_piter *viter) |
| 304 | { |
| 305 | return viter->addrs[viter->i]; |
| 306 | } |
| 307 | |
| 308 | static dma_addr_t __vmw_piter_sg_addr(struct vmw_piter *viter) |
| 309 | { |
Thomas Hellstrom | 8dc39cf | 2019-05-15 17:45:23 +0200 | [diff] [blame] | 310 | return sg_page_iter_dma_address(&viter->iter); |
Thomas Hellstrom | d92d985 | 2013-10-24 01:49:26 -0700 | [diff] [blame] | 311 | } |
| 312 | |
| 313 | |
| 314 | /** |
| 315 | * vmw_piter_start - Initialize a struct vmw_piter. |
| 316 | * |
| 317 | * @viter: Pointer to the iterator to initialize |
| 318 | * @vsgt: Pointer to a struct vmw_sg_table to initialize from |
| 319 | * |
| 320 | * Note that we're following the convention of __sg_page_iter_start, so that |
| 321 | * the iterator doesn't point to a valid page after initialization; it has |
| 322 | * to be advanced one step first. |
| 323 | */ |
| 324 | void vmw_piter_start(struct vmw_piter *viter, const struct vmw_sg_table *vsgt, |
| 325 | unsigned long p_offset) |
| 326 | { |
| 327 | viter->i = p_offset - 1; |
| 328 | viter->num_pages = vsgt->num_pages; |
Thomas Hellstrom | 8dc39cf | 2019-05-15 17:45:23 +0200 | [diff] [blame] | 329 | viter->page = &__vmw_piter_non_sg_page; |
| 330 | viter->pages = vsgt->pages; |
Thomas Hellstrom | d92d985 | 2013-10-24 01:49:26 -0700 | [diff] [blame] | 331 | switch (vsgt->mode) { |
| 332 | case vmw_dma_phys: |
| 333 | viter->next = &__vmw_piter_non_sg_next; |
| 334 | viter->dma_address = &__vmw_piter_phys_addr; |
Thomas Hellstrom | d92d985 | 2013-10-24 01:49:26 -0700 | [diff] [blame] | 335 | break; |
| 336 | case vmw_dma_alloc_coherent: |
| 337 | viter->next = &__vmw_piter_non_sg_next; |
| 338 | viter->dma_address = &__vmw_piter_dma_addr; |
Thomas Hellstrom | d92d985 | 2013-10-24 01:49:26 -0700 | [diff] [blame] | 339 | viter->addrs = vsgt->addrs; |
| 340 | break; |
| 341 | case vmw_dma_map_populate: |
| 342 | case vmw_dma_map_bind: |
| 343 | viter->next = &__vmw_piter_sg_next; |
| 344 | viter->dma_address = &__vmw_piter_sg_addr; |
Thomas Hellstrom | 8dc39cf | 2019-05-15 17:45:23 +0200 | [diff] [blame] | 345 | __sg_page_iter_start(&viter->iter.base, vsgt->sgt->sgl, |
Thomas Hellstrom | d92d985 | 2013-10-24 01:49:26 -0700 | [diff] [blame] | 346 | vsgt->sgt->orig_nents, p_offset); |
| 347 | break; |
| 348 | default: |
| 349 | BUG(); |
| 350 | } |
| 351 | } |
| 352 | |
| 353 | /** |
| 354 | * vmw_ttm_unmap_from_dma - unmap device addresses previsouly mapped for |
| 355 | * TTM pages |
| 356 | * |
| 357 | * @vmw_tt: Pointer to a struct vmw_ttm_backend |
| 358 | * |
| 359 | * Used to free dma mappings previously mapped by vmw_ttm_map_for_dma. |
| 360 | */ |
| 361 | static void vmw_ttm_unmap_from_dma(struct vmw_ttm_tt *vmw_tt) |
| 362 | { |
| 363 | struct device *dev = vmw_tt->dev_priv->dev->dev; |
| 364 | |
| 365 | dma_unmap_sg(dev, vmw_tt->sgt.sgl, vmw_tt->sgt.nents, |
| 366 | DMA_BIDIRECTIONAL); |
| 367 | vmw_tt->sgt.nents = vmw_tt->sgt.orig_nents; |
| 368 | } |
| 369 | |
| 370 | /** |
| 371 | * vmw_ttm_map_for_dma - map TTM pages to get device addresses |
| 372 | * |
| 373 | * @vmw_tt: Pointer to a struct vmw_ttm_backend |
| 374 | * |
| 375 | * This function is used to get device addresses from the kernel DMA layer. |
| 376 | * However, it's violating the DMA API in that when this operation has been |
| 377 | * performed, it's illegal for the CPU to write to the pages without first |
| 378 | * unmapping the DMA mappings, or calling dma_sync_sg_for_cpu(). It is |
| 379 | * therefore only legal to call this function if we know that the function |
| 380 | * dma_sync_sg_for_cpu() is a NOP, and dma_sync_sg_for_device() is at most |
| 381 | * a CPU write buffer flush. |
| 382 | */ |
| 383 | static int vmw_ttm_map_for_dma(struct vmw_ttm_tt *vmw_tt) |
| 384 | { |
| 385 | struct device *dev = vmw_tt->dev_priv->dev->dev; |
| 386 | int ret; |
| 387 | |
| 388 | ret = dma_map_sg(dev, vmw_tt->sgt.sgl, vmw_tt->sgt.orig_nents, |
| 389 | DMA_BIDIRECTIONAL); |
| 390 | if (unlikely(ret == 0)) |
| 391 | return -ENOMEM; |
| 392 | |
| 393 | vmw_tt->sgt.nents = ret; |
| 394 | |
| 395 | return 0; |
| 396 | } |
| 397 | |
| 398 | /** |
| 399 | * vmw_ttm_map_dma - Make sure TTM pages are visible to the device |
| 400 | * |
| 401 | * @vmw_tt: Pointer to a struct vmw_ttm_tt |
| 402 | * |
| 403 | * Select the correct function for and make sure the TTM pages are |
| 404 | * visible to the device. Allocate storage for the device mappings. |
| 405 | * If a mapping has already been performed, indicated by the storage |
| 406 | * pointer being non NULL, the function returns success. |
| 407 | */ |
| 408 | static int vmw_ttm_map_dma(struct vmw_ttm_tt *vmw_tt) |
| 409 | { |
| 410 | struct vmw_private *dev_priv = vmw_tt->dev_priv; |
| 411 | struct ttm_mem_global *glob = vmw_mem_glob(dev_priv); |
| 412 | struct vmw_sg_table *vsgt = &vmw_tt->vsgt; |
Roger He | 279c01f | 2017-12-08 15:09:50 +0800 | [diff] [blame] | 413 | struct ttm_operation_ctx ctx = { |
| 414 | .interruptible = true, |
| 415 | .no_wait_gpu = false |
| 416 | }; |
Thomas Hellstrom | d92d985 | 2013-10-24 01:49:26 -0700 | [diff] [blame] | 417 | struct vmw_piter iter; |
| 418 | dma_addr_t old; |
| 419 | int ret = 0; |
| 420 | static size_t sgl_size; |
| 421 | static size_t sgt_size; |
| 422 | |
| 423 | if (vmw_tt->mapped) |
| 424 | return 0; |
| 425 | |
| 426 | vsgt->mode = dev_priv->map_mode; |
| 427 | vsgt->pages = vmw_tt->dma_ttm.ttm.pages; |
| 428 | vsgt->num_pages = vmw_tt->dma_ttm.ttm.num_pages; |
| 429 | vsgt->addrs = vmw_tt->dma_ttm.dma_address; |
| 430 | vsgt->sgt = &vmw_tt->sgt; |
| 431 | |
| 432 | switch (dev_priv->map_mode) { |
| 433 | case vmw_dma_map_bind: |
| 434 | case vmw_dma_map_populate: |
| 435 | if (unlikely(!sgl_size)) { |
| 436 | sgl_size = ttm_round_pot(sizeof(struct scatterlist)); |
| 437 | sgt_size = ttm_round_pot(sizeof(struct sg_table)); |
| 438 | } |
| 439 | vmw_tt->sg_alloc_size = sgt_size + sgl_size * vsgt->num_pages; |
Roger He | 279c01f | 2017-12-08 15:09:50 +0800 | [diff] [blame] | 440 | ret = ttm_mem_global_alloc(glob, vmw_tt->sg_alloc_size, &ctx); |
Thomas Hellstrom | d92d985 | 2013-10-24 01:49:26 -0700 | [diff] [blame] | 441 | if (unlikely(ret != 0)) |
| 442 | return ret; |
| 443 | |
Thomas Hellstrom | bde1555 | 2019-06-04 13:54:26 +0200 | [diff] [blame] | 444 | ret = __sg_alloc_table_from_pages |
| 445 | (&vmw_tt->sgt, vsgt->pages, vsgt->num_pages, 0, |
| 446 | (unsigned long) vsgt->num_pages << PAGE_SHIFT, |
| 447 | dma_get_max_seg_size(dev_priv->dev->dev), |
| 448 | GFP_KERNEL); |
Thomas Hellstrom | d92d985 | 2013-10-24 01:49:26 -0700 | [diff] [blame] | 449 | if (unlikely(ret != 0)) |
| 450 | goto out_sg_alloc_fail; |
| 451 | |
| 452 | if (vsgt->num_pages > vmw_tt->sgt.nents) { |
| 453 | uint64_t over_alloc = |
| 454 | sgl_size * (vsgt->num_pages - |
| 455 | vmw_tt->sgt.nents); |
| 456 | |
| 457 | ttm_mem_global_free(glob, over_alloc); |
| 458 | vmw_tt->sg_alloc_size -= over_alloc; |
| 459 | } |
| 460 | |
| 461 | ret = vmw_ttm_map_for_dma(vmw_tt); |
| 462 | if (unlikely(ret != 0)) |
| 463 | goto out_map_fail; |
| 464 | |
| 465 | break; |
| 466 | default: |
| 467 | break; |
| 468 | } |
| 469 | |
| 470 | old = ~((dma_addr_t) 0); |
| 471 | vmw_tt->vsgt.num_regions = 0; |
| 472 | for (vmw_piter_start(&iter, vsgt, 0); vmw_piter_next(&iter);) { |
| 473 | dma_addr_t cur = vmw_piter_dma_addr(&iter); |
| 474 | |
| 475 | if (cur != old + PAGE_SIZE) |
| 476 | vmw_tt->vsgt.num_regions++; |
| 477 | old = cur; |
| 478 | } |
| 479 | |
| 480 | vmw_tt->mapped = true; |
| 481 | return 0; |
| 482 | |
| 483 | out_map_fail: |
| 484 | sg_free_table(vmw_tt->vsgt.sgt); |
| 485 | vmw_tt->vsgt.sgt = NULL; |
| 486 | out_sg_alloc_fail: |
| 487 | ttm_mem_global_free(glob, vmw_tt->sg_alloc_size); |
| 488 | return ret; |
| 489 | } |
| 490 | |
| 491 | /** |
| 492 | * vmw_ttm_unmap_dma - Tear down any TTM page device mappings |
| 493 | * |
| 494 | * @vmw_tt: Pointer to a struct vmw_ttm_tt |
| 495 | * |
| 496 | * Tear down any previously set up device DMA mappings and free |
| 497 | * any storage space allocated for them. If there are no mappings set up, |
| 498 | * this function is a NOP. |
| 499 | */ |
| 500 | static void vmw_ttm_unmap_dma(struct vmw_ttm_tt *vmw_tt) |
| 501 | { |
| 502 | struct vmw_private *dev_priv = vmw_tt->dev_priv; |
| 503 | |
| 504 | if (!vmw_tt->vsgt.sgt) |
| 505 | return; |
| 506 | |
| 507 | switch (dev_priv->map_mode) { |
| 508 | case vmw_dma_map_bind: |
| 509 | case vmw_dma_map_populate: |
| 510 | vmw_ttm_unmap_from_dma(vmw_tt); |
| 511 | sg_free_table(vmw_tt->vsgt.sgt); |
| 512 | vmw_tt->vsgt.sgt = NULL; |
| 513 | ttm_mem_global_free(vmw_mem_glob(dev_priv), |
| 514 | vmw_tt->sg_alloc_size); |
| 515 | break; |
| 516 | default: |
| 517 | break; |
| 518 | } |
| 519 | vmw_tt->mapped = false; |
| 520 | } |
| 521 | |
Thomas Hellstrom | 0fd53cf | 2013-10-24 13:27:38 -0700 | [diff] [blame] | 522 | |
| 523 | /** |
| 524 | * vmw_bo_map_dma - Make sure buffer object pages are visible to the device |
| 525 | * |
| 526 | * @bo: Pointer to a struct ttm_buffer_object |
| 527 | * |
| 528 | * Wrapper around vmw_ttm_map_dma, that takes a TTM buffer object pointer |
| 529 | * instead of a pointer to a struct vmw_ttm_backend as argument. |
| 530 | * Note that the buffer object must be either pinned or reserved before |
| 531 | * calling this function. |
| 532 | */ |
| 533 | int vmw_bo_map_dma(struct ttm_buffer_object *bo) |
| 534 | { |
| 535 | struct vmw_ttm_tt *vmw_tt = |
| 536 | container_of(bo->ttm, struct vmw_ttm_tt, dma_ttm.ttm); |
| 537 | |
| 538 | return vmw_ttm_map_dma(vmw_tt); |
| 539 | } |
| 540 | |
| 541 | |
| 542 | /** |
| 543 | * vmw_bo_unmap_dma - Make sure buffer object pages are visible to the device |
| 544 | * |
| 545 | * @bo: Pointer to a struct ttm_buffer_object |
| 546 | * |
| 547 | * Wrapper around vmw_ttm_unmap_dma, that takes a TTM buffer object pointer |
| 548 | * instead of a pointer to a struct vmw_ttm_backend as argument. |
| 549 | */ |
| 550 | void vmw_bo_unmap_dma(struct ttm_buffer_object *bo) |
| 551 | { |
| 552 | struct vmw_ttm_tt *vmw_tt = |
| 553 | container_of(bo->ttm, struct vmw_ttm_tt, dma_ttm.ttm); |
| 554 | |
| 555 | vmw_ttm_unmap_dma(vmw_tt); |
| 556 | } |
| 557 | |
| 558 | |
| 559 | /** |
| 560 | * vmw_bo_sg_table - Return a struct vmw_sg_table object for a |
| 561 | * TTM buffer object |
| 562 | * |
| 563 | * @bo: Pointer to a struct ttm_buffer_object |
| 564 | * |
| 565 | * Returns a pointer to a struct vmw_sg_table object. The object should |
| 566 | * not be freed after use. |
| 567 | * Note that for the device addresses to be valid, the buffer object must |
| 568 | * either be reserved or pinned. |
| 569 | */ |
| 570 | const struct vmw_sg_table *vmw_bo_sg_table(struct ttm_buffer_object *bo) |
| 571 | { |
| 572 | struct vmw_ttm_tt *vmw_tt = |
| 573 | container_of(bo->ttm, struct vmw_ttm_tt, dma_ttm.ttm); |
| 574 | |
| 575 | return &vmw_tt->vsgt; |
| 576 | } |
| 577 | |
| 578 | |
Jerome Glisse | 649bf3c | 2011-11-01 20:46:13 -0400 | [diff] [blame] | 579 | static int vmw_ttm_bind(struct ttm_tt *ttm, struct ttm_mem_reg *bo_mem) |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 580 | { |
Thomas Hellstrom | d92d985 | 2013-10-24 01:49:26 -0700 | [diff] [blame] | 581 | struct vmw_ttm_tt *vmw_be = |
| 582 | container_of(ttm, struct vmw_ttm_tt, dma_ttm.ttm); |
| 583 | int ret; |
| 584 | |
| 585 | ret = vmw_ttm_map_dma(vmw_be); |
| 586 | if (unlikely(ret != 0)) |
| 587 | return ret; |
Thomas Hellstrom | 135cba0 | 2010-10-26 21:21:47 +0200 | [diff] [blame] | 588 | |
| 589 | vmw_be->gmr_id = bo_mem->start; |
Thomas Hellstrom | 6da768a | 2012-11-21 11:06:22 +0100 | [diff] [blame] | 590 | vmw_be->mem_type = bo_mem->mem_type; |
Thomas Hellstrom | 135cba0 | 2010-10-26 21:21:47 +0200 | [diff] [blame] | 591 | |
Thomas Hellstrom | 6da768a | 2012-11-21 11:06:22 +0100 | [diff] [blame] | 592 | switch (bo_mem->mem_type) { |
| 593 | case VMW_PL_GMR: |
| 594 | return vmw_gmr_bind(vmw_be->dev_priv, &vmw_be->vsgt, |
| 595 | ttm->num_pages, vmw_be->gmr_id); |
| 596 | case VMW_PL_MOB: |
| 597 | if (unlikely(vmw_be->mob == NULL)) { |
| 598 | vmw_be->mob = |
| 599 | vmw_mob_create(ttm->num_pages); |
| 600 | if (unlikely(vmw_be->mob == NULL)) |
| 601 | return -ENOMEM; |
| 602 | } |
| 603 | |
| 604 | return vmw_mob_bind(vmw_be->dev_priv, vmw_be->mob, |
Thomas Hellstrom | 0fd53cf | 2013-10-24 13:27:38 -0700 | [diff] [blame] | 605 | &vmw_be->vsgt, ttm->num_pages, |
Thomas Hellstrom | 6da768a | 2012-11-21 11:06:22 +0100 | [diff] [blame] | 606 | vmw_be->gmr_id); |
| 607 | default: |
| 608 | BUG(); |
| 609 | } |
| 610 | return 0; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 611 | } |
| 612 | |
Jerome Glisse | 649bf3c | 2011-11-01 20:46:13 -0400 | [diff] [blame] | 613 | static int vmw_ttm_unbind(struct ttm_tt *ttm) |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 614 | { |
Thomas Hellstrom | d92d985 | 2013-10-24 01:49:26 -0700 | [diff] [blame] | 615 | struct vmw_ttm_tt *vmw_be = |
| 616 | container_of(ttm, struct vmw_ttm_tt, dma_ttm.ttm); |
Thomas Hellstrom | 135cba0 | 2010-10-26 21:21:47 +0200 | [diff] [blame] | 617 | |
Thomas Hellstrom | 6da768a | 2012-11-21 11:06:22 +0100 | [diff] [blame] | 618 | switch (vmw_be->mem_type) { |
| 619 | case VMW_PL_GMR: |
| 620 | vmw_gmr_unbind(vmw_be->dev_priv, vmw_be->gmr_id); |
| 621 | break; |
| 622 | case VMW_PL_MOB: |
| 623 | vmw_mob_unbind(vmw_be->dev_priv, vmw_be->mob); |
| 624 | break; |
| 625 | default: |
| 626 | BUG(); |
| 627 | } |
Thomas Hellstrom | d92d985 | 2013-10-24 01:49:26 -0700 | [diff] [blame] | 628 | |
| 629 | if (vmw_be->dev_priv->map_mode == vmw_dma_map_bind) |
| 630 | vmw_ttm_unmap_dma(vmw_be); |
| 631 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 632 | return 0; |
| 633 | } |
| 634 | |
Thomas Hellstrom | 6da768a | 2012-11-21 11:06:22 +0100 | [diff] [blame] | 635 | |
Jerome Glisse | 649bf3c | 2011-11-01 20:46:13 -0400 | [diff] [blame] | 636 | static void vmw_ttm_destroy(struct ttm_tt *ttm) |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 637 | { |
Thomas Hellstrom | d92d985 | 2013-10-24 01:49:26 -0700 | [diff] [blame] | 638 | struct vmw_ttm_tt *vmw_be = |
| 639 | container_of(ttm, struct vmw_ttm_tt, dma_ttm.ttm); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 640 | |
Thomas Hellstrom | d92d985 | 2013-10-24 01:49:26 -0700 | [diff] [blame] | 641 | vmw_ttm_unmap_dma(vmw_be); |
| 642 | if (vmw_be->dev_priv->map_mode == vmw_dma_alloc_coherent) |
| 643 | ttm_dma_tt_fini(&vmw_be->dma_ttm); |
| 644 | else |
| 645 | ttm_tt_fini(ttm); |
Thomas Hellstrom | 6da768a | 2012-11-21 11:06:22 +0100 | [diff] [blame] | 646 | |
| 647 | if (vmw_be->mob) |
| 648 | vmw_mob_destroy(vmw_be->mob); |
| 649 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 650 | kfree(vmw_be); |
| 651 | } |
| 652 | |
Thomas Hellstrom | 0fd53cf | 2013-10-24 13:27:38 -0700 | [diff] [blame] | 653 | |
Roger He | d0cef9f | 2017-12-21 17:42:50 +0800 | [diff] [blame] | 654 | static int vmw_ttm_populate(struct ttm_tt *ttm, struct ttm_operation_ctx *ctx) |
Thomas Hellstrom | d92d985 | 2013-10-24 01:49:26 -0700 | [diff] [blame] | 655 | { |
| 656 | struct vmw_ttm_tt *vmw_tt = |
| 657 | container_of(ttm, struct vmw_ttm_tt, dma_ttm.ttm); |
| 658 | struct vmw_private *dev_priv = vmw_tt->dev_priv; |
| 659 | struct ttm_mem_global *glob = vmw_mem_glob(dev_priv); |
| 660 | int ret; |
| 661 | |
| 662 | if (ttm->state != tt_unpopulated) |
| 663 | return 0; |
| 664 | |
| 665 | if (dev_priv->map_mode == vmw_dma_alloc_coherent) { |
| 666 | size_t size = |
| 667 | ttm_round_pot(ttm->num_pages * sizeof(dma_addr_t)); |
Roger He | d0cef9f | 2017-12-21 17:42:50 +0800 | [diff] [blame] | 668 | ret = ttm_mem_global_alloc(glob, size, ctx); |
Thomas Hellstrom | d92d985 | 2013-10-24 01:49:26 -0700 | [diff] [blame] | 669 | if (unlikely(ret != 0)) |
| 670 | return ret; |
| 671 | |
Roger He | d0cef9f | 2017-12-21 17:42:50 +0800 | [diff] [blame] | 672 | ret = ttm_dma_populate(&vmw_tt->dma_ttm, dev_priv->dev->dev, |
| 673 | ctx); |
Thomas Hellstrom | d92d985 | 2013-10-24 01:49:26 -0700 | [diff] [blame] | 674 | if (unlikely(ret != 0)) |
| 675 | ttm_mem_global_free(glob, size); |
| 676 | } else |
Roger He | d0cef9f | 2017-12-21 17:42:50 +0800 | [diff] [blame] | 677 | ret = ttm_pool_populate(ttm, ctx); |
Thomas Hellstrom | d92d985 | 2013-10-24 01:49:26 -0700 | [diff] [blame] | 678 | |
| 679 | return ret; |
| 680 | } |
| 681 | |
| 682 | static void vmw_ttm_unpopulate(struct ttm_tt *ttm) |
| 683 | { |
| 684 | struct vmw_ttm_tt *vmw_tt = container_of(ttm, struct vmw_ttm_tt, |
| 685 | dma_ttm.ttm); |
| 686 | struct vmw_private *dev_priv = vmw_tt->dev_priv; |
| 687 | struct ttm_mem_global *glob = vmw_mem_glob(dev_priv); |
| 688 | |
Thomas Hellstrom | 6da768a | 2012-11-21 11:06:22 +0100 | [diff] [blame] | 689 | |
| 690 | if (vmw_tt->mob) { |
| 691 | vmw_mob_destroy(vmw_tt->mob); |
| 692 | vmw_tt->mob = NULL; |
| 693 | } |
| 694 | |
Thomas Hellstrom | d92d985 | 2013-10-24 01:49:26 -0700 | [diff] [blame] | 695 | vmw_ttm_unmap_dma(vmw_tt); |
| 696 | if (dev_priv->map_mode == vmw_dma_alloc_coherent) { |
| 697 | size_t size = |
| 698 | ttm_round_pot(ttm->num_pages * sizeof(dma_addr_t)); |
| 699 | |
| 700 | ttm_dma_unpopulate(&vmw_tt->dma_ttm, dev_priv->dev->dev); |
| 701 | ttm_mem_global_free(glob, size); |
| 702 | } else |
| 703 | ttm_pool_unpopulate(ttm); |
| 704 | } |
| 705 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 706 | static struct ttm_backend_func vmw_ttm_func = { |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 707 | .bind = vmw_ttm_bind, |
| 708 | .unbind = vmw_ttm_unbind, |
| 709 | .destroy = vmw_ttm_destroy, |
| 710 | }; |
| 711 | |
Christian König | dde5da2 | 2018-02-22 10:18:14 +0100 | [diff] [blame] | 712 | static struct ttm_tt *vmw_ttm_tt_create(struct ttm_buffer_object *bo, |
| 713 | uint32_t page_flags) |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 714 | { |
Jerome Glisse | 649bf3c | 2011-11-01 20:46:13 -0400 | [diff] [blame] | 715 | struct vmw_ttm_tt *vmw_be; |
Thomas Hellstrom | d92d985 | 2013-10-24 01:49:26 -0700 | [diff] [blame] | 716 | int ret; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 717 | |
Thomas Hellstrom | d92d985 | 2013-10-24 01:49:26 -0700 | [diff] [blame] | 718 | vmw_be = kzalloc(sizeof(*vmw_be), GFP_KERNEL); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 719 | if (!vmw_be) |
| 720 | return NULL; |
| 721 | |
Thomas Hellstrom | d92d985 | 2013-10-24 01:49:26 -0700 | [diff] [blame] | 722 | vmw_be->dma_ttm.ttm.func = &vmw_ttm_func; |
Christian König | dde5da2 | 2018-02-22 10:18:14 +0100 | [diff] [blame] | 723 | vmw_be->dev_priv = container_of(bo->bdev, struct vmw_private, bdev); |
Thomas Hellstrom | 6da768a | 2012-11-21 11:06:22 +0100 | [diff] [blame] | 724 | vmw_be->mob = NULL; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 725 | |
Thomas Hellstrom | d92d985 | 2013-10-24 01:49:26 -0700 | [diff] [blame] | 726 | if (vmw_be->dev_priv->map_mode == vmw_dma_alloc_coherent) |
Christian König | dde5da2 | 2018-02-22 10:18:14 +0100 | [diff] [blame] | 727 | ret = ttm_dma_tt_init(&vmw_be->dma_ttm, bo, page_flags); |
Thomas Hellstrom | d92d985 | 2013-10-24 01:49:26 -0700 | [diff] [blame] | 728 | else |
Christian König | dde5da2 | 2018-02-22 10:18:14 +0100 | [diff] [blame] | 729 | ret = ttm_tt_init(&vmw_be->dma_ttm.ttm, bo, page_flags); |
Thomas Hellstrom | d92d985 | 2013-10-24 01:49:26 -0700 | [diff] [blame] | 730 | if (unlikely(ret != 0)) |
| 731 | goto out_no_init; |
Jerome Glisse | 649bf3c | 2011-11-01 20:46:13 -0400 | [diff] [blame] | 732 | |
Thomas Hellstrom | d92d985 | 2013-10-24 01:49:26 -0700 | [diff] [blame] | 733 | return &vmw_be->dma_ttm.ttm; |
| 734 | out_no_init: |
| 735 | kfree(vmw_be); |
| 736 | return NULL; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 737 | } |
| 738 | |
Rashika Kheria | 8227622 | 2014-01-06 22:20:21 +0530 | [diff] [blame] | 739 | static int vmw_invalidate_caches(struct ttm_bo_device *bdev, uint32_t flags) |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 740 | { |
| 741 | return 0; |
| 742 | } |
| 743 | |
Rashika Kheria | 8227622 | 2014-01-06 22:20:21 +0530 | [diff] [blame] | 744 | static int vmw_init_mem_type(struct ttm_bo_device *bdev, uint32_t type, |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 745 | struct ttm_mem_type_manager *man) |
| 746 | { |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 747 | switch (type) { |
| 748 | case TTM_PL_SYSTEM: |
| 749 | /* System memory */ |
| 750 | |
| 751 | man->flags = TTM_MEMTYPE_FLAG_MAPPABLE; |
Thomas Hellstrom | 135cba0 | 2010-10-26 21:21:47 +0200 | [diff] [blame] | 752 | man->available_caching = TTM_PL_FLAG_CACHED; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 753 | man->default_caching = TTM_PL_FLAG_CACHED; |
| 754 | break; |
| 755 | case TTM_PL_VRAM: |
| 756 | /* "On-card" video ram */ |
Ben Skeggs | d961db7 | 2010-08-05 10:48:18 +1000 | [diff] [blame] | 757 | man->func = &ttm_bo_manager_func; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 758 | man->gpu_offset = 0; |
Jerome Glisse | 96bf8b8 | 2010-04-09 14:39:26 +0200 | [diff] [blame] | 759 | man->flags = TTM_MEMTYPE_FLAG_FIXED | TTM_MEMTYPE_FLAG_MAPPABLE; |
Thomas Hellstrom | 135cba0 | 2010-10-26 21:21:47 +0200 | [diff] [blame] | 760 | man->available_caching = TTM_PL_FLAG_CACHED; |
| 761 | man->default_caching = TTM_PL_FLAG_CACHED; |
| 762 | break; |
| 763 | case VMW_PL_GMR: |
Thomas Hellstrom | 6da768a | 2012-11-21 11:06:22 +0100 | [diff] [blame] | 764 | case VMW_PL_MOB: |
Thomas Hellstrom | 135cba0 | 2010-10-26 21:21:47 +0200 | [diff] [blame] | 765 | /* |
| 766 | * "Guest Memory Regions" is an aperture like feature with |
| 767 | * one slot per bo. There is an upper limit of the number of |
| 768 | * slots as well as the bo size. |
| 769 | */ |
| 770 | man->func = &vmw_gmrid_manager_func; |
| 771 | man->gpu_offset = 0; |
| 772 | man->flags = TTM_MEMTYPE_FLAG_CMA | TTM_MEMTYPE_FLAG_MAPPABLE; |
| 773 | man->available_caching = TTM_PL_FLAG_CACHED; |
| 774 | man->default_caching = TTM_PL_FLAG_CACHED; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 775 | break; |
| 776 | default: |
| 777 | DRM_ERROR("Unsupported memory type %u\n", (unsigned)type); |
| 778 | return -EINVAL; |
| 779 | } |
| 780 | return 0; |
| 781 | } |
| 782 | |
Rashika Kheria | 8227622 | 2014-01-06 22:20:21 +0530 | [diff] [blame] | 783 | static void vmw_evict_flags(struct ttm_buffer_object *bo, |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 784 | struct ttm_placement *placement) |
| 785 | { |
| 786 | *placement = vmw_sys_placement; |
| 787 | } |
| 788 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 789 | static int vmw_verify_access(struct ttm_buffer_object *bo, struct file *filp) |
| 790 | { |
Thomas Hellstrom | d08a9b9 | 2012-11-21 16:04:18 +0100 | [diff] [blame] | 791 | struct ttm_object_file *tfile = |
| 792 | vmw_fpriv((struct drm_file *)filp->private_data)->tfile; |
| 793 | |
Thomas Hellstrom | f1d34bf | 2018-06-19 15:02:16 +0200 | [diff] [blame] | 794 | return vmw_user_bo_verify_access(bo, tfile); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 795 | } |
| 796 | |
Jerome Glisse | 96bf8b8 | 2010-04-09 14:39:26 +0200 | [diff] [blame] | 797 | static int vmw_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem) |
| 798 | { |
| 799 | struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type]; |
| 800 | struct vmw_private *dev_priv = container_of(bdev, struct vmw_private, bdev); |
| 801 | |
| 802 | mem->bus.addr = NULL; |
| 803 | mem->bus.is_iomem = false; |
| 804 | mem->bus.offset = 0; |
| 805 | mem->bus.size = mem->num_pages << PAGE_SHIFT; |
| 806 | mem->bus.base = 0; |
| 807 | if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE)) |
| 808 | return -EINVAL; |
| 809 | switch (mem->mem_type) { |
| 810 | case TTM_PL_SYSTEM: |
Thomas Hellstrom | 135cba0 | 2010-10-26 21:21:47 +0200 | [diff] [blame] | 811 | case VMW_PL_GMR: |
Thomas Hellstrom | 6da768a | 2012-11-21 11:06:22 +0100 | [diff] [blame] | 812 | case VMW_PL_MOB: |
Jerome Glisse | 96bf8b8 | 2010-04-09 14:39:26 +0200 | [diff] [blame] | 813 | return 0; |
| 814 | case TTM_PL_VRAM: |
Ben Skeggs | d961db7 | 2010-08-05 10:48:18 +1000 | [diff] [blame] | 815 | mem->bus.offset = mem->start << PAGE_SHIFT; |
Jerome Glisse | 96bf8b8 | 2010-04-09 14:39:26 +0200 | [diff] [blame] | 816 | mem->bus.base = dev_priv->vram_start; |
| 817 | mem->bus.is_iomem = true; |
| 818 | break; |
| 819 | default: |
| 820 | return -EINVAL; |
| 821 | } |
| 822 | return 0; |
| 823 | } |
| 824 | |
| 825 | static void vmw_ttm_io_mem_free(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem) |
| 826 | { |
| 827 | } |
| 828 | |
| 829 | static int vmw_ttm_fault_reserve_notify(struct ttm_buffer_object *bo) |
| 830 | { |
| 831 | return 0; |
| 832 | } |
| 833 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 834 | /** |
Thomas Hellstrom | 6da768a | 2012-11-21 11:06:22 +0100 | [diff] [blame] | 835 | * vmw_move_notify - TTM move_notify_callback |
| 836 | * |
Sinclair Yeh | fd11a3c | 2015-08-10 10:56:15 -0700 | [diff] [blame] | 837 | * @bo: The TTM buffer object about to move. |
| 838 | * @mem: The struct ttm_mem_reg indicating to what memory |
| 839 | * region the move is taking place. |
Thomas Hellstrom | 6da768a | 2012-11-21 11:06:22 +0100 | [diff] [blame] | 840 | * |
| 841 | * Calls move_notify for all subsystems needing it. |
| 842 | * (currently only resources). |
| 843 | */ |
| 844 | static void vmw_move_notify(struct ttm_buffer_object *bo, |
Nicolai Hähnle | 66257db | 2016-12-15 17:23:49 +0100 | [diff] [blame] | 845 | bool evict, |
Thomas Hellstrom | 6da768a | 2012-11-21 11:06:22 +0100 | [diff] [blame] | 846 | struct ttm_mem_reg *mem) |
| 847 | { |
Thomas Hellstrom | e9431ea | 2018-06-19 15:33:53 +0200 | [diff] [blame] | 848 | vmw_bo_move_notify(bo, mem); |
Sinclair Yeh | fd11a3c | 2015-08-10 10:56:15 -0700 | [diff] [blame] | 849 | vmw_query_move_notify(bo, mem); |
Thomas Hellstrom | 6da768a | 2012-11-21 11:06:22 +0100 | [diff] [blame] | 850 | } |
| 851 | |
| 852 | |
| 853 | /** |
| 854 | * vmw_swap_notify - TTM move_notify_callback |
| 855 | * |
Sinclair Yeh | fd11a3c | 2015-08-10 10:56:15 -0700 | [diff] [blame] | 856 | * @bo: The TTM buffer object about to be swapped out. |
Thomas Hellstrom | 6da768a | 2012-11-21 11:06:22 +0100 | [diff] [blame] | 857 | */ |
| 858 | static void vmw_swap_notify(struct ttm_buffer_object *bo) |
| 859 | { |
Thomas Hellstrom | e9431ea | 2018-06-19 15:33:53 +0200 | [diff] [blame] | 860 | vmw_bo_swap_notify(bo); |
Thomas Hellstrom | f08c86c | 2017-01-19 10:57:00 -0800 | [diff] [blame] | 861 | (void) ttm_bo_wait(bo, false, false); |
Thomas Hellstrom | 6da768a | 2012-11-21 11:06:22 +0100 | [diff] [blame] | 862 | } |
| 863 | |
| 864 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 865 | struct ttm_bo_driver vmw_bo_driver = { |
Jerome Glisse | 649bf3c | 2011-11-01 20:46:13 -0400 | [diff] [blame] | 866 | .ttm_tt_create = &vmw_ttm_tt_create, |
Thomas Hellstrom | d92d985 | 2013-10-24 01:49:26 -0700 | [diff] [blame] | 867 | .ttm_tt_populate = &vmw_ttm_populate, |
| 868 | .ttm_tt_unpopulate = &vmw_ttm_unpopulate, |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 869 | .invalidate_caches = vmw_invalidate_caches, |
| 870 | .init_mem_type = vmw_init_mem_type, |
Christian König | a2ab19fe | 2016-08-30 17:26:04 +0200 | [diff] [blame] | 871 | .eviction_valuable = ttm_bo_eviction_valuable, |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 872 | .evict_flags = vmw_evict_flags, |
| 873 | .move = NULL, |
| 874 | .verify_access = vmw_verify_access, |
Thomas Hellstrom | 6da768a | 2012-11-21 11:06:22 +0100 | [diff] [blame] | 875 | .move_notify = vmw_move_notify, |
| 876 | .swap_notify = vmw_swap_notify, |
Jerome Glisse | 96bf8b8 | 2010-04-09 14:39:26 +0200 | [diff] [blame] | 877 | .fault_reserve_notify = &vmw_ttm_fault_reserve_notify, |
| 878 | .io_mem_reserve = &vmw_ttm_io_mem_reserve, |
| 879 | .io_mem_free = &vmw_ttm_io_mem_free, |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 880 | }; |