Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2008 Advanced Micro Devices, Inc. |
| 3 | * Copyright 2008 Red Hat Inc. |
| 4 | * Copyright 2009 Jerome Glisse. |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 7 | * copy of this software and associated documentation files (the "Software"), |
| 8 | * to deal in the Software without restriction, including without limitation |
| 9 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 10 | * and/or sell copies of the Software, and to permit persons to whom the |
| 11 | * Software is furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in |
| 14 | * all copies or substantial portions of the Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 19 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| 20 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| 21 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| 22 | * OTHER DEALINGS IN THE SOFTWARE. |
| 23 | * |
| 24 | * Authors: Dave Airlie |
| 25 | * Alex Deucher |
| 26 | * Jerome Glisse |
| 27 | */ |
| 28 | #include <drm/drmP.h> |
| 29 | #include <drm/radeon_drm.h> |
| 30 | #include "radeon.h" |
| 31 | #include "radeon_trace.h" |
| 32 | |
| 33 | /* |
| 34 | * GPUVM |
| 35 | * GPUVM is similar to the legacy gart on older asics, however |
| 36 | * rather than there being a single global gart table |
| 37 | * for the entire GPU, there are multiple VM page tables active |
| 38 | * at any given time. The VM page tables can contain a mix |
| 39 | * vram pages and system memory pages and system memory pages |
| 40 | * can be mapped as snooped (cached system pages) or unsnooped |
| 41 | * (uncached system pages). |
| 42 | * Each VM has an ID associated with it and there is a page table |
| 43 | * associated with each VMID. When execting a command buffer, |
| 44 | * the kernel tells the the ring what VMID to use for that command |
| 45 | * buffer. VMIDs are allocated dynamically as commands are submitted. |
| 46 | * The userspace drivers maintain their own address space and the kernel |
| 47 | * sets up their pages tables accordingly when they submit their |
| 48 | * command buffers and a VMID is assigned. |
| 49 | * Cayman/Trinity support up to 8 active VMs at any given time; |
| 50 | * SI supports 16. |
| 51 | */ |
| 52 | |
| 53 | /** |
| 54 | * radeon_vm_num_pde - return the number of page directory entries |
| 55 | * |
| 56 | * @rdev: radeon_device pointer |
| 57 | * |
| 58 | * Calculate the number of page directory entries (cayman+). |
| 59 | */ |
| 60 | static unsigned radeon_vm_num_pdes(struct radeon_device *rdev) |
| 61 | { |
Christian König | 4510fb9 | 2014-06-05 23:56:50 -0400 | [diff] [blame] | 62 | return rdev->vm_manager.max_pfn >> radeon_vm_block_size; |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 63 | } |
| 64 | |
| 65 | /** |
| 66 | * radeon_vm_directory_size - returns the size of the page directory in bytes |
| 67 | * |
| 68 | * @rdev: radeon_device pointer |
| 69 | * |
| 70 | * Calculate the size of the page directory in bytes (cayman+). |
| 71 | */ |
| 72 | static unsigned radeon_vm_directory_size(struct radeon_device *rdev) |
| 73 | { |
| 74 | return RADEON_GPU_PAGE_ALIGN(radeon_vm_num_pdes(rdev) * 8); |
| 75 | } |
| 76 | |
| 77 | /** |
| 78 | * radeon_vm_manager_init - init the vm manager |
| 79 | * |
| 80 | * @rdev: radeon_device pointer |
| 81 | * |
| 82 | * Init the vm manager (cayman+). |
| 83 | * Returns 0 for success, error for failure. |
| 84 | */ |
| 85 | int radeon_vm_manager_init(struct radeon_device *rdev) |
| 86 | { |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 87 | int r; |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 88 | |
| 89 | if (!rdev->vm_manager.enabled) { |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 90 | r = radeon_asic_vm_init(rdev); |
| 91 | if (r) |
| 92 | return r; |
| 93 | |
| 94 | rdev->vm_manager.enabled = true; |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 95 | } |
| 96 | return 0; |
| 97 | } |
| 98 | |
| 99 | /** |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 100 | * radeon_vm_manager_fini - tear down the vm manager |
| 101 | * |
| 102 | * @rdev: radeon_device pointer |
| 103 | * |
| 104 | * Tear down the VM manager (cayman+). |
| 105 | */ |
| 106 | void radeon_vm_manager_fini(struct radeon_device *rdev) |
| 107 | { |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 108 | int i; |
| 109 | |
| 110 | if (!rdev->vm_manager.enabled) |
| 111 | return; |
| 112 | |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 113 | for (i = 0; i < RADEON_NUM_VM; ++i) |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 114 | radeon_fence_unref(&rdev->vm_manager.active[i]); |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 115 | radeon_asic_vm_fini(rdev); |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 116 | rdev->vm_manager.enabled = false; |
| 117 | } |
| 118 | |
| 119 | /** |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 120 | * radeon_vm_get_bos - add the vm BOs to a validation list |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 121 | * |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 122 | * @vm: vm providing the BOs |
| 123 | * @head: head of validation list |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 124 | * |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 125 | * Add the page directory to the list of BOs to |
| 126 | * validate for command submission (cayman+). |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 127 | */ |
Christian König | 1d0c094 | 2014-11-27 14:48:42 +0100 | [diff] [blame] | 128 | struct radeon_bo_list *radeon_vm_get_bos(struct radeon_device *rdev, |
Christian König | df0af44 | 2014-03-03 12:38:08 +0100 | [diff] [blame] | 129 | struct radeon_vm *vm, |
| 130 | struct list_head *head) |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 131 | { |
Christian König | 1d0c094 | 2014-11-27 14:48:42 +0100 | [diff] [blame] | 132 | struct radeon_bo_list *list; |
Christian König | 7d95f6c | 2014-05-28 12:24:17 +0200 | [diff] [blame] | 133 | unsigned i, idx; |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 134 | |
Michel Dänzer | e5a5fd4d | 2014-10-20 18:40:54 +0900 | [diff] [blame] | 135 | list = drm_malloc_ab(vm->max_pde_used + 2, |
Christian König | 1d0c094 | 2014-11-27 14:48:42 +0100 | [diff] [blame] | 136 | sizeof(struct radeon_bo_list)); |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 137 | if (!list) |
| 138 | return NULL; |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 139 | |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 140 | /* add the vm page table to the list */ |
Christian König | df0af44 | 2014-03-03 12:38:08 +0100 | [diff] [blame] | 141 | list[0].robj = vm->page_directory; |
Christian König | ce6758c | 2014-06-02 17:33:07 +0200 | [diff] [blame] | 142 | list[0].prefered_domains = RADEON_GEM_DOMAIN_VRAM; |
| 143 | list[0].allowed_domains = RADEON_GEM_DOMAIN_VRAM; |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 144 | list[0].tv.bo = &vm->page_directory->tbo; |
Christian König | 587cdda | 2014-11-19 14:01:23 +0100 | [diff] [blame] | 145 | list[0].tv.shared = true; |
Christian König | df0af44 | 2014-03-03 12:38:08 +0100 | [diff] [blame] | 146 | list[0].tiling_flags = 0; |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 147 | list_add(&list[0].tv.head, head); |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 148 | |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 149 | for (i = 0, idx = 1; i <= vm->max_pde_used; i++) { |
| 150 | if (!vm->page_tables[i].bo) |
| 151 | continue; |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 152 | |
Christian König | df0af44 | 2014-03-03 12:38:08 +0100 | [diff] [blame] | 153 | list[idx].robj = vm->page_tables[i].bo; |
Christian König | ce6758c | 2014-06-02 17:33:07 +0200 | [diff] [blame] | 154 | list[idx].prefered_domains = RADEON_GEM_DOMAIN_VRAM; |
| 155 | list[idx].allowed_domains = RADEON_GEM_DOMAIN_VRAM; |
Christian König | df0af44 | 2014-03-03 12:38:08 +0100 | [diff] [blame] | 156 | list[idx].tv.bo = &list[idx].robj->tbo; |
Christian König | 587cdda | 2014-11-19 14:01:23 +0100 | [diff] [blame] | 157 | list[idx].tv.shared = true; |
Christian König | df0af44 | 2014-03-03 12:38:08 +0100 | [diff] [blame] | 158 | list[idx].tiling_flags = 0; |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 159 | list_add(&list[idx++].tv.head, head); |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 160 | } |
| 161 | |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 162 | return list; |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 163 | } |
| 164 | |
| 165 | /** |
| 166 | * radeon_vm_grab_id - allocate the next free VMID |
| 167 | * |
| 168 | * @rdev: radeon_device pointer |
| 169 | * @vm: vm to allocate id for |
| 170 | * @ring: ring we want to submit job to |
| 171 | * |
| 172 | * Allocate an id for the vm (cayman+). |
| 173 | * Returns the fence we need to sync to (if any). |
| 174 | * |
| 175 | * Global and local mutex must be locked! |
| 176 | */ |
| 177 | struct radeon_fence *radeon_vm_grab_id(struct radeon_device *rdev, |
| 178 | struct radeon_vm *vm, int ring) |
| 179 | { |
| 180 | struct radeon_fence *best[RADEON_NUM_RINGS] = {}; |
Christian König | 7c42bc1 | 2014-11-19 14:01:25 +0100 | [diff] [blame] | 181 | struct radeon_vm_id *vm_id = &vm->ids[ring]; |
| 182 | |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 183 | unsigned choices[2] = {}; |
| 184 | unsigned i; |
| 185 | |
| 186 | /* check if the id is still valid */ |
Christian König | 7c42bc1 | 2014-11-19 14:01:25 +0100 | [diff] [blame] | 187 | if (vm_id->id && vm_id->last_id_use && |
| 188 | vm_id->last_id_use == rdev->vm_manager.active[vm_id->id]) |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 189 | return NULL; |
| 190 | |
| 191 | /* we definately need to flush */ |
Christian König | 7c42bc1 | 2014-11-19 14:01:25 +0100 | [diff] [blame] | 192 | vm_id->pd_gpu_addr = ~0ll; |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 193 | |
| 194 | /* skip over VMID 0, since it is the system VM */ |
| 195 | for (i = 1; i < rdev->vm_manager.nvm; ++i) { |
| 196 | struct radeon_fence *fence = rdev->vm_manager.active[i]; |
| 197 | |
| 198 | if (fence == NULL) { |
| 199 | /* found a free one */ |
Christian König | 7c42bc1 | 2014-11-19 14:01:25 +0100 | [diff] [blame] | 200 | vm_id->id = i; |
| 201 | trace_radeon_vm_grab_id(i, ring); |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 202 | return NULL; |
| 203 | } |
| 204 | |
| 205 | if (radeon_fence_is_earlier(fence, best[fence->ring])) { |
| 206 | best[fence->ring] = fence; |
| 207 | choices[fence->ring == ring ? 0 : 1] = i; |
| 208 | } |
| 209 | } |
| 210 | |
| 211 | for (i = 0; i < 2; ++i) { |
| 212 | if (choices[i]) { |
Christian König | 7c42bc1 | 2014-11-19 14:01:25 +0100 | [diff] [blame] | 213 | vm_id->id = choices[i]; |
| 214 | trace_radeon_vm_grab_id(choices[i], ring); |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 215 | return rdev->vm_manager.active[choices[i]]; |
| 216 | } |
| 217 | } |
| 218 | |
| 219 | /* should never happen */ |
| 220 | BUG(); |
| 221 | return NULL; |
| 222 | } |
| 223 | |
| 224 | /** |
Christian König | fa68834 | 2014-02-20 10:47:05 +0100 | [diff] [blame] | 225 | * radeon_vm_flush - hardware flush the vm |
| 226 | * |
| 227 | * @rdev: radeon_device pointer |
| 228 | * @vm: vm we want to flush |
| 229 | * @ring: ring to use for flush |
Christian König | ad1a58a | 2014-11-19 14:01:24 +0100 | [diff] [blame] | 230 | * @updates: last vm update that is waited for |
Christian König | fa68834 | 2014-02-20 10:47:05 +0100 | [diff] [blame] | 231 | * |
| 232 | * Flush the vm (cayman+). |
| 233 | * |
| 234 | * Global and local mutex must be locked! |
| 235 | */ |
| 236 | void radeon_vm_flush(struct radeon_device *rdev, |
| 237 | struct radeon_vm *vm, |
Christian König | ad1a58a | 2014-11-19 14:01:24 +0100 | [diff] [blame] | 238 | int ring, struct radeon_fence *updates) |
Christian König | fa68834 | 2014-02-20 10:47:05 +0100 | [diff] [blame] | 239 | { |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 240 | uint64_t pd_addr = radeon_bo_gpu_offset(vm->page_directory); |
Christian König | 7c42bc1 | 2014-11-19 14:01:25 +0100 | [diff] [blame] | 241 | struct radeon_vm_id *vm_id = &vm->ids[ring]; |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 242 | |
Christian König | 7c42bc1 | 2014-11-19 14:01:25 +0100 | [diff] [blame] | 243 | if (pd_addr != vm_id->pd_gpu_addr || !vm_id->flushed_updates || |
| 244 | radeon_fence_is_earlier(vm_id->flushed_updates, updates)) { |
Christian König | ad1a58a | 2014-11-19 14:01:24 +0100 | [diff] [blame] | 245 | |
Christian König | 7c42bc1 | 2014-11-19 14:01:25 +0100 | [diff] [blame] | 246 | trace_radeon_vm_flush(pd_addr, ring, vm->ids[ring].id); |
| 247 | radeon_fence_unref(&vm_id->flushed_updates); |
| 248 | vm_id->flushed_updates = radeon_fence_ref(updates); |
| 249 | vm_id->pd_gpu_addr = pd_addr; |
Christian König | faffaf6 | 2014-11-19 14:01:19 +0100 | [diff] [blame] | 250 | radeon_ring_vm_flush(rdev, &rdev->ring[ring], |
Christian König | 7c42bc1 | 2014-11-19 14:01:25 +0100 | [diff] [blame] | 251 | vm_id->id, vm_id->pd_gpu_addr); |
| 252 | |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 253 | } |
Christian König | fa68834 | 2014-02-20 10:47:05 +0100 | [diff] [blame] | 254 | } |
| 255 | |
| 256 | /** |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 257 | * radeon_vm_fence - remember fence for vm |
| 258 | * |
| 259 | * @rdev: radeon_device pointer |
| 260 | * @vm: vm we want to fence |
| 261 | * @fence: fence to remember |
| 262 | * |
| 263 | * Fence the vm (cayman+). |
| 264 | * Set the fence used to protect page table and id. |
| 265 | * |
| 266 | * Global and local mutex must be locked! |
| 267 | */ |
| 268 | void radeon_vm_fence(struct radeon_device *rdev, |
| 269 | struct radeon_vm *vm, |
| 270 | struct radeon_fence *fence) |
| 271 | { |
Christian König | 7c42bc1 | 2014-11-19 14:01:25 +0100 | [diff] [blame] | 272 | unsigned vm_id = vm->ids[fence->ring].id; |
| 273 | |
Christian König | 7c42bc1 | 2014-11-19 14:01:25 +0100 | [diff] [blame] | 274 | radeon_fence_unref(&rdev->vm_manager.active[vm_id]); |
| 275 | rdev->vm_manager.active[vm_id] = radeon_fence_ref(fence); |
Christian König | fa68834 | 2014-02-20 10:47:05 +0100 | [diff] [blame] | 276 | |
Christian König | 7c42bc1 | 2014-11-19 14:01:25 +0100 | [diff] [blame] | 277 | radeon_fence_unref(&vm->ids[fence->ring].last_id_use); |
| 278 | vm->ids[fence->ring].last_id_use = radeon_fence_ref(fence); |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 279 | } |
| 280 | |
| 281 | /** |
| 282 | * radeon_vm_bo_find - find the bo_va for a specific vm & bo |
| 283 | * |
| 284 | * @vm: requested vm |
| 285 | * @bo: requested buffer object |
| 286 | * |
| 287 | * Find @bo inside the requested vm (cayman+). |
| 288 | * Search inside the @bos vm list for the requested vm |
| 289 | * Returns the found bo_va or NULL if none is found |
| 290 | * |
| 291 | * Object has to be reserved! |
| 292 | */ |
| 293 | struct radeon_bo_va *radeon_vm_bo_find(struct radeon_vm *vm, |
| 294 | struct radeon_bo *bo) |
| 295 | { |
| 296 | struct radeon_bo_va *bo_va; |
| 297 | |
| 298 | list_for_each_entry(bo_va, &bo->va, bo_list) { |
| 299 | if (bo_va->vm == vm) { |
| 300 | return bo_va; |
| 301 | } |
| 302 | } |
| 303 | return NULL; |
| 304 | } |
| 305 | |
| 306 | /** |
| 307 | * radeon_vm_bo_add - add a bo to a specific vm |
| 308 | * |
| 309 | * @rdev: radeon_device pointer |
| 310 | * @vm: requested vm |
| 311 | * @bo: radeon buffer object |
| 312 | * |
| 313 | * Add @bo into the requested vm (cayman+). |
| 314 | * Add @bo to the list of bos associated with the vm |
| 315 | * Returns newly added bo_va or NULL for failure |
| 316 | * |
| 317 | * Object has to be reserved! |
| 318 | */ |
| 319 | struct radeon_bo_va *radeon_vm_bo_add(struct radeon_device *rdev, |
| 320 | struct radeon_vm *vm, |
| 321 | struct radeon_bo *bo) |
| 322 | { |
| 323 | struct radeon_bo_va *bo_va; |
| 324 | |
| 325 | bo_va = kzalloc(sizeof(struct radeon_bo_va), GFP_KERNEL); |
| 326 | if (bo_va == NULL) { |
| 327 | return NULL; |
| 328 | } |
| 329 | bo_va->vm = vm; |
| 330 | bo_va->bo = bo; |
Alex Deucher | 0aea5e4 | 2014-07-30 11:49:56 -0400 | [diff] [blame] | 331 | bo_va->it.start = 0; |
| 332 | bo_va->it.last = 0; |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 333 | bo_va->flags = 0; |
Christian König | e31ad96 | 2014-07-18 09:24:53 +0200 | [diff] [blame] | 334 | bo_va->addr = 0; |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 335 | bo_va->ref_count = 1; |
| 336 | INIT_LIST_HEAD(&bo_va->bo_list); |
Christian König | 036bf46 | 2014-07-18 08:56:40 +0200 | [diff] [blame] | 337 | INIT_LIST_HEAD(&bo_va->vm_status); |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 338 | |
| 339 | mutex_lock(&vm->mutex); |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 340 | list_add_tail(&bo_va->bo_list, &bo->va); |
| 341 | mutex_unlock(&vm->mutex); |
| 342 | |
| 343 | return bo_va; |
| 344 | } |
| 345 | |
| 346 | /** |
Christian König | 03f62ab | 2014-07-30 21:05:17 +0200 | [diff] [blame] | 347 | * radeon_vm_set_pages - helper to call the right asic function |
| 348 | * |
| 349 | * @rdev: radeon_device pointer |
| 350 | * @ib: indirect buffer to fill with commands |
| 351 | * @pe: addr of the page entry |
| 352 | * @addr: dst addr to write into pe |
| 353 | * @count: number of page entries to update |
| 354 | * @incr: increase next addr by incr bytes |
| 355 | * @flags: hw access flags |
| 356 | * |
| 357 | * Traces the parameters and calls the right asic functions |
| 358 | * to setup the page table using the DMA. |
| 359 | */ |
| 360 | static void radeon_vm_set_pages(struct radeon_device *rdev, |
| 361 | struct radeon_ib *ib, |
| 362 | uint64_t pe, |
| 363 | uint64_t addr, unsigned count, |
| 364 | uint32_t incr, uint32_t flags) |
| 365 | { |
| 366 | trace_radeon_vm_set_page(pe, addr, count, incr, flags); |
| 367 | |
| 368 | if ((flags & R600_PTE_GART_MASK) == R600_PTE_GART_MASK) { |
| 369 | uint64_t src = rdev->gart.table_addr + (addr >> 12) * 8; |
| 370 | radeon_asic_vm_copy_pages(rdev, ib, pe, src, count); |
| 371 | |
| 372 | } else if ((flags & R600_PTE_SYSTEM) || (count < 3)) { |
| 373 | radeon_asic_vm_write_pages(rdev, ib, pe, addr, |
| 374 | count, incr, flags); |
| 375 | |
| 376 | } else { |
| 377 | radeon_asic_vm_set_pages(rdev, ib, pe, addr, |
| 378 | count, incr, flags); |
| 379 | } |
| 380 | } |
| 381 | |
| 382 | /** |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 383 | * radeon_vm_clear_bo - initially clear the page dir/table |
| 384 | * |
| 385 | * @rdev: radeon_device pointer |
| 386 | * @bo: bo to clear |
| 387 | */ |
| 388 | static int radeon_vm_clear_bo(struct radeon_device *rdev, |
| 389 | struct radeon_bo *bo) |
| 390 | { |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 391 | struct radeon_ib ib; |
| 392 | unsigned entries; |
| 393 | uint64_t addr; |
| 394 | int r; |
| 395 | |
Christian König | 587cdda | 2014-11-19 14:01:23 +0100 | [diff] [blame] | 396 | r = radeon_bo_reserve(bo, false); |
| 397 | if (r) |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 398 | return r; |
| 399 | |
Christian König | 587cdda | 2014-11-19 14:01:23 +0100 | [diff] [blame] | 400 | r = ttm_bo_validate(&bo->tbo, &bo->placement, true, false); |
| 401 | if (r) |
| 402 | goto error_unreserve; |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 403 | |
| 404 | addr = radeon_bo_gpu_offset(bo); |
| 405 | entries = radeon_bo_size(bo) / 8; |
| 406 | |
Christian König | cc6f353 | 2014-07-30 21:05:18 +0200 | [diff] [blame] | 407 | r = radeon_ib_get(rdev, R600_RING_TYPE_DMA_INDEX, &ib, NULL, 256); |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 408 | if (r) |
Christian König | 587cdda | 2014-11-19 14:01:23 +0100 | [diff] [blame] | 409 | goto error_unreserve; |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 410 | |
| 411 | ib.length_dw = 0; |
| 412 | |
Christian König | 03f62ab | 2014-07-30 21:05:17 +0200 | [diff] [blame] | 413 | radeon_vm_set_pages(rdev, &ib, addr, 0, entries, 0, 0); |
| 414 | radeon_asic_vm_pad_ib(rdev, &ib); |
Christian König | cc6f353 | 2014-07-30 21:05:18 +0200 | [diff] [blame] | 415 | WARN_ON(ib.length_dw > 64); |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 416 | |
Michel Dänzer | 1538a9e | 2014-08-18 17:34:55 +0900 | [diff] [blame] | 417 | r = radeon_ib_schedule(rdev, &ib, NULL, false); |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 418 | if (r) |
Christian König | 587cdda | 2014-11-19 14:01:23 +0100 | [diff] [blame] | 419 | goto error_free; |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 420 | |
Christian König | ad1a58a | 2014-11-19 14:01:24 +0100 | [diff] [blame] | 421 | ib.fence->is_vm_update = true; |
Christian König | 587cdda | 2014-11-19 14:01:23 +0100 | [diff] [blame] | 422 | radeon_bo_fence(bo, ib.fence, false); |
| 423 | |
| 424 | error_free: |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 425 | radeon_ib_free(rdev, &ib); |
| 426 | |
Christian König | 587cdda | 2014-11-19 14:01:23 +0100 | [diff] [blame] | 427 | error_unreserve: |
| 428 | radeon_bo_unreserve(bo); |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 429 | return r; |
| 430 | } |
| 431 | |
| 432 | /** |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 433 | * radeon_vm_bo_set_addr - set bos virtual address inside a vm |
| 434 | * |
| 435 | * @rdev: radeon_device pointer |
| 436 | * @bo_va: bo_va to store the address |
| 437 | * @soffset: requested offset of the buffer in the VM address space |
| 438 | * @flags: attributes of pages (read/write/valid/etc.) |
| 439 | * |
| 440 | * Set offset of @bo_va (cayman+). |
| 441 | * Validate and set the offset requested within the vm address space. |
| 442 | * Returns 0 for success, error for failure. |
| 443 | * |
Christian König | 85761f6 | 2014-11-19 14:01:20 +0100 | [diff] [blame] | 444 | * Object has to be reserved and gets unreserved by this function! |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 445 | */ |
| 446 | int radeon_vm_bo_set_addr(struct radeon_device *rdev, |
| 447 | struct radeon_bo_va *bo_va, |
| 448 | uint64_t soffset, |
| 449 | uint32_t flags) |
| 450 | { |
| 451 | uint64_t size = radeon_bo_size(bo_va->bo); |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 452 | struct radeon_vm *vm = bo_va->vm; |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 453 | unsigned last_pfn, pt_idx; |
Alex Deucher | 0aea5e4 | 2014-07-30 11:49:56 -0400 | [diff] [blame] | 454 | uint64_t eoffset; |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 455 | int r; |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 456 | |
| 457 | if (soffset) { |
| 458 | /* make sure object fit at this offset */ |
| 459 | eoffset = soffset + size; |
| 460 | if (soffset >= eoffset) { |
| 461 | return -EINVAL; |
| 462 | } |
| 463 | |
| 464 | last_pfn = eoffset / RADEON_GPU_PAGE_SIZE; |
| 465 | if (last_pfn > rdev->vm_manager.max_pfn) { |
| 466 | dev_err(rdev->dev, "va above limit (0x%08X > 0x%08X)\n", |
| 467 | last_pfn, rdev->vm_manager.max_pfn); |
| 468 | return -EINVAL; |
| 469 | } |
| 470 | |
| 471 | } else { |
| 472 | eoffset = last_pfn = 0; |
| 473 | } |
| 474 | |
| 475 | mutex_lock(&vm->mutex); |
Alex Deucher | 0aea5e4 | 2014-07-30 11:49:56 -0400 | [diff] [blame] | 476 | if (bo_va->it.start || bo_va->it.last) { |
| 477 | if (bo_va->addr) { |
| 478 | /* add a clone of the bo_va to clear the old address */ |
| 479 | struct radeon_bo_va *tmp; |
| 480 | tmp = kzalloc(sizeof(struct radeon_bo_va), GFP_KERNEL); |
Dan Carpenter | 68b1ea3 | 2014-08-07 18:27:37 +0300 | [diff] [blame] | 481 | if (!tmp) { |
| 482 | mutex_unlock(&vm->mutex); |
| 483 | return -ENOMEM; |
| 484 | } |
Alex Deucher | 0aea5e4 | 2014-07-30 11:49:56 -0400 | [diff] [blame] | 485 | tmp->it.start = bo_va->it.start; |
| 486 | tmp->it.last = bo_va->it.last; |
| 487 | tmp->vm = vm; |
| 488 | tmp->addr = bo_va->addr; |
Christian König | ee26d83 | 2014-07-30 21:04:57 +0200 | [diff] [blame] | 489 | tmp->bo = radeon_bo_ref(bo_va->bo); |
Christian König | f7a3db7 | 2014-11-27 14:48:44 +0100 | [diff] [blame] | 490 | spin_lock(&vm->status_lock); |
Alex Deucher | 0aea5e4 | 2014-07-30 11:49:56 -0400 | [diff] [blame] | 491 | list_add(&tmp->vm_status, &vm->freed); |
Christian König | f7a3db7 | 2014-11-27 14:48:44 +0100 | [diff] [blame] | 492 | spin_unlock(&vm->status_lock); |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 493 | } |
| 494 | |
Alex Deucher | 0aea5e4 | 2014-07-30 11:49:56 -0400 | [diff] [blame] | 495 | interval_tree_remove(&bo_va->it, &vm->va); |
| 496 | bo_va->it.start = 0; |
| 497 | bo_va->it.last = 0; |
| 498 | } |
| 499 | |
| 500 | soffset /= RADEON_GPU_PAGE_SIZE; |
| 501 | eoffset /= RADEON_GPU_PAGE_SIZE; |
| 502 | if (soffset || eoffset) { |
| 503 | struct interval_tree_node *it; |
| 504 | it = interval_tree_iter_first(&vm->va, soffset, eoffset - 1); |
| 505 | if (it) { |
| 506 | struct radeon_bo_va *tmp; |
| 507 | tmp = container_of(it, struct radeon_bo_va, it); |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 508 | /* bo and tmp overlap, invalid offset */ |
Alex Deucher | 0aea5e4 | 2014-07-30 11:49:56 -0400 | [diff] [blame] | 509 | dev_err(rdev->dev, "bo %p va 0x%010Lx conflict with " |
| 510 | "(bo %p 0x%010lx 0x%010lx)\n", bo_va->bo, |
| 511 | soffset, tmp->bo, tmp->it.start, tmp->it.last); |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 512 | mutex_unlock(&vm->mutex); |
| 513 | return -EINVAL; |
| 514 | } |
Alex Deucher | 0aea5e4 | 2014-07-30 11:49:56 -0400 | [diff] [blame] | 515 | bo_va->it.start = soffset; |
| 516 | bo_va->it.last = eoffset - 1; |
| 517 | interval_tree_insert(&bo_va->it, &vm->va); |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 518 | } |
| 519 | |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 520 | bo_va->flags = flags; |
Christian König | e31ad96 | 2014-07-18 09:24:53 +0200 | [diff] [blame] | 521 | bo_va->addr = 0; |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 522 | |
Alex Deucher | 0aea5e4 | 2014-07-30 11:49:56 -0400 | [diff] [blame] | 523 | soffset >>= radeon_vm_block_size; |
| 524 | eoffset >>= radeon_vm_block_size; |
Christian König | 4510fb9 | 2014-06-05 23:56:50 -0400 | [diff] [blame] | 525 | |
| 526 | BUG_ON(eoffset >= radeon_vm_num_pdes(rdev)); |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 527 | |
| 528 | if (eoffset > vm->max_pde_used) |
| 529 | vm->max_pde_used = eoffset; |
| 530 | |
| 531 | radeon_bo_unreserve(bo_va->bo); |
| 532 | |
| 533 | /* walk over the address space and allocate the page tables */ |
| 534 | for (pt_idx = soffset; pt_idx <= eoffset; ++pt_idx) { |
| 535 | struct radeon_bo *pt; |
| 536 | |
| 537 | if (vm->page_tables[pt_idx].bo) |
| 538 | continue; |
| 539 | |
| 540 | /* drop mutex to allocate and clear page table */ |
| 541 | mutex_unlock(&vm->mutex); |
| 542 | |
| 543 | r = radeon_bo_create(rdev, RADEON_VM_PTE_COUNT * 8, |
Christian König | 7dae77f | 2014-07-02 21:28:10 +0200 | [diff] [blame] | 544 | RADEON_GPU_PAGE_SIZE, true, |
Maarten Lankhorst | 831b696 | 2014-09-18 14:11:56 +0200 | [diff] [blame] | 545 | RADEON_GEM_DOMAIN_VRAM, 0, |
| 546 | NULL, NULL, &pt); |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 547 | if (r) |
| 548 | return r; |
| 549 | |
| 550 | r = radeon_vm_clear_bo(rdev, pt); |
| 551 | if (r) { |
| 552 | radeon_bo_unref(&pt); |
| 553 | radeon_bo_reserve(bo_va->bo, false); |
| 554 | return r; |
| 555 | } |
| 556 | |
| 557 | /* aquire mutex again */ |
| 558 | mutex_lock(&vm->mutex); |
| 559 | if (vm->page_tables[pt_idx].bo) { |
| 560 | /* someone else allocated the pt in the meantime */ |
| 561 | mutex_unlock(&vm->mutex); |
| 562 | radeon_bo_unref(&pt); |
| 563 | mutex_lock(&vm->mutex); |
| 564 | continue; |
| 565 | } |
| 566 | |
| 567 | vm->page_tables[pt_idx].addr = 0; |
| 568 | vm->page_tables[pt_idx].bo = pt; |
| 569 | } |
| 570 | |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 571 | mutex_unlock(&vm->mutex); |
Christian König | 85761f6 | 2014-11-19 14:01:20 +0100 | [diff] [blame] | 572 | return 0; |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 573 | } |
| 574 | |
| 575 | /** |
| 576 | * radeon_vm_map_gart - get the physical address of a gart page |
| 577 | * |
| 578 | * @rdev: radeon_device pointer |
| 579 | * @addr: the unmapped addr |
| 580 | * |
| 581 | * Look up the physical address of the page that the pte resolves |
| 582 | * to (cayman+). |
| 583 | * Returns the physical address of the page. |
| 584 | */ |
| 585 | uint64_t radeon_vm_map_gart(struct radeon_device *rdev, uint64_t addr) |
| 586 | { |
| 587 | uint64_t result; |
| 588 | |
| 589 | /* page table offset */ |
| 590 | result = rdev->gart.pages_addr[addr >> PAGE_SHIFT]; |
| 591 | |
| 592 | /* in case cpu page size != gpu page size*/ |
| 593 | result |= addr & (~PAGE_MASK); |
| 594 | |
| 595 | return result; |
| 596 | } |
| 597 | |
| 598 | /** |
| 599 | * radeon_vm_page_flags - translate page flags to what the hw uses |
| 600 | * |
| 601 | * @flags: flags comming from userspace |
| 602 | * |
| 603 | * Translate the flags the userspace ABI uses to hw flags. |
| 604 | */ |
| 605 | static uint32_t radeon_vm_page_flags(uint32_t flags) |
| 606 | { |
| 607 | uint32_t hw_flags = 0; |
| 608 | hw_flags |= (flags & RADEON_VM_PAGE_VALID) ? R600_PTE_VALID : 0; |
| 609 | hw_flags |= (flags & RADEON_VM_PAGE_READABLE) ? R600_PTE_READABLE : 0; |
| 610 | hw_flags |= (flags & RADEON_VM_PAGE_WRITEABLE) ? R600_PTE_WRITEABLE : 0; |
| 611 | if (flags & RADEON_VM_PAGE_SYSTEM) { |
| 612 | hw_flags |= R600_PTE_SYSTEM; |
| 613 | hw_flags |= (flags & RADEON_VM_PAGE_SNOOPED) ? R600_PTE_SNOOPED : 0; |
| 614 | } |
| 615 | return hw_flags; |
| 616 | } |
| 617 | |
| 618 | /** |
| 619 | * radeon_vm_update_pdes - make sure that page directory is valid |
| 620 | * |
| 621 | * @rdev: radeon_device pointer |
| 622 | * @vm: requested vm |
| 623 | * @start: start of GPU address range |
| 624 | * @end: end of GPU address range |
| 625 | * |
| 626 | * Allocates new page tables if necessary |
| 627 | * and updates the page directory (cayman+). |
| 628 | * Returns 0 for success, error for failure. |
| 629 | * |
| 630 | * Global and local mutex must be locked! |
| 631 | */ |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 632 | int radeon_vm_update_page_directory(struct radeon_device *rdev, |
| 633 | struct radeon_vm *vm) |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 634 | { |
Christian König | 37903b5 | 2014-05-30 15:21:16 +0200 | [diff] [blame] | 635 | struct radeon_bo *pd = vm->page_directory; |
| 636 | uint64_t pd_addr = radeon_bo_gpu_offset(pd); |
Christian König | 4510fb9 | 2014-06-05 23:56:50 -0400 | [diff] [blame] | 637 | uint32_t incr = RADEON_VM_PTE_COUNT * 8; |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 638 | uint64_t last_pde = ~0, last_pt = ~0; |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 639 | unsigned count = 0, pt_idx, ndw; |
| 640 | struct radeon_ib ib; |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 641 | int r; |
| 642 | |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 643 | /* padding, etc. */ |
| 644 | ndw = 64; |
| 645 | |
| 646 | /* assume the worst case */ |
Christian König | cc6f353 | 2014-07-30 21:05:18 +0200 | [diff] [blame] | 647 | ndw += vm->max_pde_used * 6; |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 648 | |
| 649 | /* update too big for an IB */ |
| 650 | if (ndw > 0xfffff) |
| 651 | return -ENOMEM; |
| 652 | |
| 653 | r = radeon_ib_get(rdev, R600_RING_TYPE_DMA_INDEX, &ib, NULL, ndw * 4); |
| 654 | if (r) |
| 655 | return r; |
| 656 | ib.length_dw = 0; |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 657 | |
| 658 | /* walk over the address space and update the page directory */ |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 659 | for (pt_idx = 0; pt_idx <= vm->max_pde_used; ++pt_idx) { |
| 660 | struct radeon_bo *bo = vm->page_tables[pt_idx].bo; |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 661 | uint64_t pde, pt; |
| 662 | |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 663 | if (bo == NULL) |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 664 | continue; |
| 665 | |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 666 | pt = radeon_bo_gpu_offset(bo); |
| 667 | if (vm->page_tables[pt_idx].addr == pt) |
| 668 | continue; |
| 669 | vm->page_tables[pt_idx].addr = pt; |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 670 | |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 671 | pde = pd_addr + pt_idx * 8; |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 672 | if (((last_pde + 8 * count) != pde) || |
| 673 | ((last_pt + incr * count) != pt)) { |
| 674 | |
| 675 | if (count) { |
Christian König | 03f62ab | 2014-07-30 21:05:17 +0200 | [diff] [blame] | 676 | radeon_vm_set_pages(rdev, &ib, last_pde, |
| 677 | last_pt, count, incr, |
| 678 | R600_PTE_VALID); |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 679 | } |
| 680 | |
| 681 | count = 1; |
| 682 | last_pde = pde; |
| 683 | last_pt = pt; |
| 684 | } else { |
| 685 | ++count; |
| 686 | } |
| 687 | } |
| 688 | |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 689 | if (count) |
Christian König | 03f62ab | 2014-07-30 21:05:17 +0200 | [diff] [blame] | 690 | radeon_vm_set_pages(rdev, &ib, last_pde, last_pt, count, |
| 691 | incr, R600_PTE_VALID); |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 692 | |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 693 | if (ib.length_dw != 0) { |
Christian König | 03f62ab | 2014-07-30 21:05:17 +0200 | [diff] [blame] | 694 | radeon_asic_vm_pad_ib(rdev, &ib); |
Maarten Lankhorst | f2c24b8 | 2014-04-02 17:14:48 +0200 | [diff] [blame] | 695 | |
Christian König | 43ac885 | 2014-11-19 14:01:27 +0100 | [diff] [blame] | 696 | radeon_sync_resv(rdev, &ib.sync, pd->tbo.resv, true); |
Christian König | cc6f353 | 2014-07-30 21:05:18 +0200 | [diff] [blame] | 697 | WARN_ON(ib.length_dw > ndw); |
Michel Dänzer | 1538a9e | 2014-08-18 17:34:55 +0900 | [diff] [blame] | 698 | r = radeon_ib_schedule(rdev, &ib, NULL, false); |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 699 | if (r) { |
| 700 | radeon_ib_free(rdev, &ib); |
| 701 | return r; |
| 702 | } |
Christian König | ad1a58a | 2014-11-19 14:01:24 +0100 | [diff] [blame] | 703 | ib.fence->is_vm_update = true; |
Christian König | 587cdda | 2014-11-19 14:01:23 +0100 | [diff] [blame] | 704 | radeon_bo_fence(pd, ib.fence, false); |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 705 | } |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 706 | radeon_ib_free(rdev, &ib); |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 707 | |
| 708 | return 0; |
| 709 | } |
| 710 | |
| 711 | /** |
Christian König | ec3dbbc | 2014-05-10 12:17:55 +0200 | [diff] [blame] | 712 | * radeon_vm_frag_ptes - add fragment information to PTEs |
| 713 | * |
| 714 | * @rdev: radeon_device pointer |
| 715 | * @ib: IB for the update |
| 716 | * @pe_start: first PTE to handle |
| 717 | * @pe_end: last PTE to handle |
| 718 | * @addr: addr those PTEs should point to |
| 719 | * @flags: hw mapping flags |
| 720 | * |
| 721 | * Global and local mutex must be locked! |
| 722 | */ |
| 723 | static void radeon_vm_frag_ptes(struct radeon_device *rdev, |
| 724 | struct radeon_ib *ib, |
| 725 | uint64_t pe_start, uint64_t pe_end, |
| 726 | uint64_t addr, uint32_t flags) |
| 727 | { |
| 728 | /** |
| 729 | * The MC L1 TLB supports variable sized pages, based on a fragment |
| 730 | * field in the PTE. When this field is set to a non-zero value, page |
| 731 | * granularity is increased from 4KB to (1 << (12 + frag)). The PTE |
| 732 | * flags are considered valid for all PTEs within the fragment range |
| 733 | * and corresponding mappings are assumed to be physically contiguous. |
| 734 | * |
| 735 | * The L1 TLB can store a single PTE for the whole fragment, |
| 736 | * significantly increasing the space available for translation |
| 737 | * caching. This leads to large improvements in throughput when the |
| 738 | * TLB is under pressure. |
| 739 | * |
| 740 | * The L2 TLB distributes small and large fragments into two |
| 741 | * asymmetric partitions. The large fragment cache is significantly |
| 742 | * larger. Thus, we try to use large fragments wherever possible. |
| 743 | * Userspace can support this by aligning virtual base address and |
| 744 | * allocation size to the fragment size. |
| 745 | */ |
| 746 | |
| 747 | /* NI is optimized for 256KB fragments, SI and newer for 64KB */ |
| 748 | uint64_t frag_flags = rdev->family == CHIP_CAYMAN ? |
| 749 | R600_PTE_FRAG_256KB : R600_PTE_FRAG_64KB; |
| 750 | uint64_t frag_align = rdev->family == CHIP_CAYMAN ? 0x200 : 0x80; |
| 751 | |
| 752 | uint64_t frag_start = ALIGN(pe_start, frag_align); |
| 753 | uint64_t frag_end = pe_end & ~(frag_align - 1); |
| 754 | |
| 755 | unsigned count; |
| 756 | |
| 757 | /* system pages are non continuously */ |
| 758 | if ((flags & R600_PTE_SYSTEM) || !(flags & R600_PTE_VALID) || |
| 759 | (frag_start >= frag_end)) { |
| 760 | |
| 761 | count = (pe_end - pe_start) / 8; |
Christian König | 03f62ab | 2014-07-30 21:05:17 +0200 | [diff] [blame] | 762 | radeon_vm_set_pages(rdev, ib, pe_start, addr, count, |
| 763 | RADEON_GPU_PAGE_SIZE, flags); |
Christian König | ec3dbbc | 2014-05-10 12:17:55 +0200 | [diff] [blame] | 764 | return; |
| 765 | } |
| 766 | |
| 767 | /* handle the 4K area at the beginning */ |
| 768 | if (pe_start != frag_start) { |
| 769 | count = (frag_start - pe_start) / 8; |
Christian König | 03f62ab | 2014-07-30 21:05:17 +0200 | [diff] [blame] | 770 | radeon_vm_set_pages(rdev, ib, pe_start, addr, count, |
| 771 | RADEON_GPU_PAGE_SIZE, flags); |
Christian König | ec3dbbc | 2014-05-10 12:17:55 +0200 | [diff] [blame] | 772 | addr += RADEON_GPU_PAGE_SIZE * count; |
| 773 | } |
| 774 | |
| 775 | /* handle the area in the middle */ |
| 776 | count = (frag_end - frag_start) / 8; |
Christian König | 03f62ab | 2014-07-30 21:05:17 +0200 | [diff] [blame] | 777 | radeon_vm_set_pages(rdev, ib, frag_start, addr, count, |
| 778 | RADEON_GPU_PAGE_SIZE, flags | frag_flags); |
Christian König | ec3dbbc | 2014-05-10 12:17:55 +0200 | [diff] [blame] | 779 | |
| 780 | /* handle the 4K area at the end */ |
| 781 | if (frag_end != pe_end) { |
| 782 | addr += RADEON_GPU_PAGE_SIZE * count; |
| 783 | count = (pe_end - frag_end) / 8; |
Christian König | 03f62ab | 2014-07-30 21:05:17 +0200 | [diff] [blame] | 784 | radeon_vm_set_pages(rdev, ib, frag_end, addr, count, |
| 785 | RADEON_GPU_PAGE_SIZE, flags); |
Christian König | ec3dbbc | 2014-05-10 12:17:55 +0200 | [diff] [blame] | 786 | } |
| 787 | } |
| 788 | |
| 789 | /** |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 790 | * radeon_vm_update_ptes - make sure that page tables are valid |
| 791 | * |
| 792 | * @rdev: radeon_device pointer |
| 793 | * @vm: requested vm |
| 794 | * @start: start of GPU address range |
| 795 | * @end: end of GPU address range |
| 796 | * @dst: destination address to map to |
| 797 | * @flags: mapping flags |
| 798 | * |
| 799 | * Update the page tables in the range @start - @end (cayman+). |
| 800 | * |
| 801 | * Global and local mutex must be locked! |
| 802 | */ |
Christian König | 44c4bd2 | 2014-11-27 14:48:43 +0100 | [diff] [blame] | 803 | static int radeon_vm_update_ptes(struct radeon_device *rdev, |
| 804 | struct radeon_vm *vm, |
| 805 | struct radeon_ib *ib, |
| 806 | uint64_t start, uint64_t end, |
| 807 | uint64_t dst, uint32_t flags) |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 808 | { |
Christian König | 4510fb9 | 2014-06-05 23:56:50 -0400 | [diff] [blame] | 809 | uint64_t mask = RADEON_VM_PTE_COUNT - 1; |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 810 | uint64_t last_pte = ~0, last_dst = ~0; |
| 811 | unsigned count = 0; |
| 812 | uint64_t addr; |
| 813 | |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 814 | /* walk over the address space and update the page tables */ |
| 815 | for (addr = start; addr < end; ) { |
Christian König | 4510fb9 | 2014-06-05 23:56:50 -0400 | [diff] [blame] | 816 | uint64_t pt_idx = addr >> radeon_vm_block_size; |
Christian König | 37903b5 | 2014-05-30 15:21:16 +0200 | [diff] [blame] | 817 | struct radeon_bo *pt = vm->page_tables[pt_idx].bo; |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 818 | unsigned nptes; |
| 819 | uint64_t pte; |
Christian König | 44c4bd2 | 2014-11-27 14:48:43 +0100 | [diff] [blame] | 820 | int r; |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 821 | |
Christian König | d1968e1 | 2014-11-19 14:01:28 +0100 | [diff] [blame] | 822 | radeon_sync_resv(rdev, &ib->sync, pt->tbo.resv, true); |
Christian König | 44c4bd2 | 2014-11-27 14:48:43 +0100 | [diff] [blame] | 823 | r = reservation_object_reserve_shared(pt->tbo.resv); |
| 824 | if (r) |
| 825 | return r; |
Christian König | 37903b5 | 2014-05-30 15:21:16 +0200 | [diff] [blame] | 826 | |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 827 | if ((addr & ~mask) == (end & ~mask)) |
| 828 | nptes = end - addr; |
| 829 | else |
| 830 | nptes = RADEON_VM_PTE_COUNT - (addr & mask); |
| 831 | |
Christian König | 37903b5 | 2014-05-30 15:21:16 +0200 | [diff] [blame] | 832 | pte = radeon_bo_gpu_offset(pt); |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 833 | pte += (addr & mask) * 8; |
| 834 | |
| 835 | if ((last_pte + 8 * count) != pte) { |
| 836 | |
| 837 | if (count) { |
Christian König | ec3dbbc | 2014-05-10 12:17:55 +0200 | [diff] [blame] | 838 | radeon_vm_frag_ptes(rdev, ib, last_pte, |
| 839 | last_pte + 8 * count, |
| 840 | last_dst, flags); |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 841 | } |
| 842 | |
| 843 | count = nptes; |
| 844 | last_pte = pte; |
| 845 | last_dst = dst; |
| 846 | } else { |
| 847 | count += nptes; |
| 848 | } |
| 849 | |
| 850 | addr += nptes; |
| 851 | dst += nptes * RADEON_GPU_PAGE_SIZE; |
| 852 | } |
| 853 | |
| 854 | if (count) { |
Christian König | ec3dbbc | 2014-05-10 12:17:55 +0200 | [diff] [blame] | 855 | radeon_vm_frag_ptes(rdev, ib, last_pte, |
| 856 | last_pte + 8 * count, |
| 857 | last_dst, flags); |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 858 | } |
Christian König | 44c4bd2 | 2014-11-27 14:48:43 +0100 | [diff] [blame] | 859 | |
| 860 | return 0; |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 861 | } |
| 862 | |
| 863 | /** |
Christian König | 587cdda | 2014-11-19 14:01:23 +0100 | [diff] [blame] | 864 | * radeon_vm_fence_pts - fence page tables after an update |
| 865 | * |
| 866 | * @vm: requested vm |
| 867 | * @start: start of GPU address range |
| 868 | * @end: end of GPU address range |
| 869 | * @fence: fence to use |
| 870 | * |
| 871 | * Fence the page tables in the range @start - @end (cayman+). |
| 872 | * |
| 873 | * Global and local mutex must be locked! |
| 874 | */ |
| 875 | static void radeon_vm_fence_pts(struct radeon_vm *vm, |
| 876 | uint64_t start, uint64_t end, |
| 877 | struct radeon_fence *fence) |
| 878 | { |
| 879 | unsigned i; |
| 880 | |
| 881 | start >>= radeon_vm_block_size; |
| 882 | end >>= radeon_vm_block_size; |
| 883 | |
| 884 | for (i = start; i <= end; ++i) |
Christian König | 44c4bd2 | 2014-11-27 14:48:43 +0100 | [diff] [blame] | 885 | radeon_bo_fence(vm->page_tables[i].bo, fence, true); |
Christian König | 587cdda | 2014-11-19 14:01:23 +0100 | [diff] [blame] | 886 | } |
| 887 | |
| 888 | /** |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 889 | * radeon_vm_bo_update - map a bo into the vm page table |
| 890 | * |
| 891 | * @rdev: radeon_device pointer |
| 892 | * @vm: requested vm |
| 893 | * @bo: radeon buffer object |
| 894 | * @mem: ttm mem |
| 895 | * |
| 896 | * Fill in the page table entries for @bo (cayman+). |
| 897 | * Returns 0 for success, -EINVAL for failure. |
| 898 | * |
Christian König | 529364e | 2014-02-20 19:33:15 +0100 | [diff] [blame] | 899 | * Object have to be reserved and mutex must be locked! |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 900 | */ |
| 901 | int radeon_vm_bo_update(struct radeon_device *rdev, |
Christian König | 036bf46 | 2014-07-18 08:56:40 +0200 | [diff] [blame] | 902 | struct radeon_bo_va *bo_va, |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 903 | struct ttm_mem_reg *mem) |
| 904 | { |
Christian König | 036bf46 | 2014-07-18 08:56:40 +0200 | [diff] [blame] | 905 | struct radeon_vm *vm = bo_va->vm; |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 906 | struct radeon_ib ib; |
Christian König | cc6f353 | 2014-07-30 21:05:18 +0200 | [diff] [blame] | 907 | unsigned nptes, ncmds, ndw; |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 908 | uint64_t addr; |
Christian König | cc6f353 | 2014-07-30 21:05:18 +0200 | [diff] [blame] | 909 | uint32_t flags; |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 910 | int r; |
| 911 | |
Alex Deucher | 0aea5e4 | 2014-07-30 11:49:56 -0400 | [diff] [blame] | 912 | if (!bo_va->it.start) { |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 913 | dev_err(rdev->dev, "bo %p don't has a mapping in vm %p\n", |
Christian König | 036bf46 | 2014-07-18 08:56:40 +0200 | [diff] [blame] | 914 | bo_va->bo, vm); |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 915 | return -EINVAL; |
| 916 | } |
| 917 | |
Christian König | f7a3db7 | 2014-11-27 14:48:44 +0100 | [diff] [blame] | 918 | spin_lock(&vm->status_lock); |
Christian König | e31ad96 | 2014-07-18 09:24:53 +0200 | [diff] [blame] | 919 | list_del_init(&bo_va->vm_status); |
Christian König | f7a3db7 | 2014-11-27 14:48:44 +0100 | [diff] [blame] | 920 | spin_unlock(&vm->status_lock); |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 921 | |
| 922 | bo_va->flags &= ~RADEON_VM_PAGE_VALID; |
| 923 | bo_va->flags &= ~RADEON_VM_PAGE_SYSTEM; |
Michel Dänzer | 02376d8 | 2014-07-17 19:01:08 +0900 | [diff] [blame] | 924 | bo_va->flags &= ~RADEON_VM_PAGE_SNOOPED; |
Christian König | f72a113a | 2014-08-07 09:36:00 +0200 | [diff] [blame] | 925 | if (bo_va->bo && radeon_ttm_tt_is_readonly(bo_va->bo->tbo.ttm)) |
| 926 | bo_va->flags &= ~RADEON_VM_PAGE_WRITEABLE; |
| 927 | |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 928 | if (mem) { |
| 929 | addr = mem->start << PAGE_SHIFT; |
| 930 | if (mem->mem_type != TTM_PL_SYSTEM) { |
| 931 | bo_va->flags |= RADEON_VM_PAGE_VALID; |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 932 | } |
| 933 | if (mem->mem_type == TTM_PL_TT) { |
| 934 | bo_va->flags |= RADEON_VM_PAGE_SYSTEM; |
Michel Dänzer | 02376d8 | 2014-07-17 19:01:08 +0900 | [diff] [blame] | 935 | if (!(bo_va->bo->flags & (RADEON_GEM_GTT_WC | RADEON_GEM_GTT_UC))) |
| 936 | bo_va->flags |= RADEON_VM_PAGE_SNOOPED; |
| 937 | |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 938 | } else { |
| 939 | addr += rdev->vm_manager.vram_base_offset; |
| 940 | } |
| 941 | } else { |
| 942 | addr = 0; |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 943 | } |
| 944 | |
Christian König | e31ad96 | 2014-07-18 09:24:53 +0200 | [diff] [blame] | 945 | if (addr == bo_va->addr) |
| 946 | return 0; |
| 947 | bo_va->addr = addr; |
| 948 | |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 949 | trace_radeon_vm_bo_update(bo_va); |
| 950 | |
Alex Deucher | 0aea5e4 | 2014-07-30 11:49:56 -0400 | [diff] [blame] | 951 | nptes = bo_va->it.last - bo_va->it.start + 1; |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 952 | |
Christian König | cc6f353 | 2014-07-30 21:05:18 +0200 | [diff] [blame] | 953 | /* reserve space for one command every (1 << BLOCK_SIZE) entries |
| 954 | or 2k dwords (whatever is smaller) */ |
| 955 | ncmds = (nptes >> min(radeon_vm_block_size, 11)) + 1; |
| 956 | |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 957 | /* padding, etc. */ |
| 958 | ndw = 64; |
| 959 | |
Christian König | cc6f353 | 2014-07-30 21:05:18 +0200 | [diff] [blame] | 960 | flags = radeon_vm_page_flags(bo_va->flags); |
| 961 | if ((flags & R600_PTE_GART_MASK) == R600_PTE_GART_MASK) { |
| 962 | /* only copy commands needed */ |
| 963 | ndw += ncmds * 7; |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 964 | |
Christian König | cc6f353 | 2014-07-30 21:05:18 +0200 | [diff] [blame] | 965 | } else if (flags & R600_PTE_SYSTEM) { |
| 966 | /* header for write data commands */ |
| 967 | ndw += ncmds * 4; |
| 968 | |
| 969 | /* body of write data command */ |
| 970 | ndw += nptes * 2; |
| 971 | |
| 972 | } else { |
| 973 | /* set page commands needed */ |
| 974 | ndw += ncmds * 10; |
| 975 | |
| 976 | /* two extra commands for begin/end of fragment */ |
| 977 | ndw += 2 * 10; |
| 978 | } |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 979 | |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 980 | /* update too big for an IB */ |
| 981 | if (ndw > 0xfffff) |
| 982 | return -ENOMEM; |
| 983 | |
| 984 | r = radeon_ib_get(rdev, R600_RING_TYPE_DMA_INDEX, &ib, NULL, ndw * 4); |
| 985 | if (r) |
| 986 | return r; |
| 987 | ib.length_dw = 0; |
| 988 | |
Christian König | d1968e1 | 2014-11-19 14:01:28 +0100 | [diff] [blame] | 989 | if (!(bo_va->flags & RADEON_VM_PAGE_VALID)) { |
| 990 | unsigned i; |
| 991 | |
| 992 | for (i = 0; i < RADEON_NUM_RINGS; ++i) |
| 993 | radeon_sync_fence(&ib.sync, vm->ids[i].last_id_use); |
| 994 | } |
| 995 | |
Christian König | 44c4bd2 | 2014-11-27 14:48:43 +0100 | [diff] [blame] | 996 | r = radeon_vm_update_ptes(rdev, vm, &ib, bo_va->it.start, |
| 997 | bo_va->it.last + 1, addr, |
| 998 | radeon_vm_page_flags(bo_va->flags)); |
| 999 | if (r) { |
| 1000 | radeon_ib_free(rdev, &ib); |
| 1001 | return r; |
| 1002 | } |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 1003 | |
Christian König | 03f62ab | 2014-07-30 21:05:17 +0200 | [diff] [blame] | 1004 | radeon_asic_vm_pad_ib(rdev, &ib); |
Christian König | cc6f353 | 2014-07-30 21:05:18 +0200 | [diff] [blame] | 1005 | WARN_ON(ib.length_dw > ndw); |
| 1006 | |
Michel Dänzer | 1538a9e | 2014-08-18 17:34:55 +0900 | [diff] [blame] | 1007 | r = radeon_ib_schedule(rdev, &ib, NULL, false); |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 1008 | if (r) { |
| 1009 | radeon_ib_free(rdev, &ib); |
| 1010 | return r; |
| 1011 | } |
Christian König | ad1a58a | 2014-11-19 14:01:24 +0100 | [diff] [blame] | 1012 | ib.fence->is_vm_update = true; |
Christian König | 587cdda | 2014-11-19 14:01:23 +0100 | [diff] [blame] | 1013 | radeon_vm_fence_pts(vm, bo_va->it.start, bo_va->it.last + 1, ib.fence); |
Christian König | 9421463 | 2014-11-19 14:01:26 +0100 | [diff] [blame] | 1014 | radeon_fence_unref(&bo_va->last_pt_update); |
| 1015 | bo_va->last_pt_update = radeon_fence_ref(ib.fence); |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 1016 | radeon_ib_free(rdev, &ib); |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 1017 | |
| 1018 | return 0; |
| 1019 | } |
| 1020 | |
| 1021 | /** |
Christian König | 036bf46 | 2014-07-18 08:56:40 +0200 | [diff] [blame] | 1022 | * radeon_vm_clear_freed - clear freed BOs in the PT |
| 1023 | * |
| 1024 | * @rdev: radeon_device pointer |
| 1025 | * @vm: requested vm |
| 1026 | * |
| 1027 | * Make sure all freed BOs are cleared in the PT. |
| 1028 | * Returns 0 for success. |
| 1029 | * |
| 1030 | * PTs have to be reserved and mutex must be locked! |
| 1031 | */ |
| 1032 | int radeon_vm_clear_freed(struct radeon_device *rdev, |
| 1033 | struct radeon_vm *vm) |
| 1034 | { |
Christian König | f7a3db7 | 2014-11-27 14:48:44 +0100 | [diff] [blame] | 1035 | struct radeon_bo_va *bo_va; |
Christian König | 036bf46 | 2014-07-18 08:56:40 +0200 | [diff] [blame] | 1036 | int r; |
| 1037 | |
Christian König | f7a3db7 | 2014-11-27 14:48:44 +0100 | [diff] [blame] | 1038 | spin_lock(&vm->status_lock); |
| 1039 | while (!list_empty(&vm->freed)) { |
| 1040 | bo_va = list_first_entry(&vm->freed, |
| 1041 | struct radeon_bo_va, vm_status); |
| 1042 | spin_unlock(&vm->status_lock); |
| 1043 | |
Christian König | 036bf46 | 2014-07-18 08:56:40 +0200 | [diff] [blame] | 1044 | r = radeon_vm_bo_update(rdev, bo_va, NULL); |
Christian König | ee26d83 | 2014-07-30 21:04:57 +0200 | [diff] [blame] | 1045 | radeon_bo_unref(&bo_va->bo); |
Christian König | 9421463 | 2014-11-19 14:01:26 +0100 | [diff] [blame] | 1046 | radeon_fence_unref(&bo_va->last_pt_update); |
Christian König | 036bf46 | 2014-07-18 08:56:40 +0200 | [diff] [blame] | 1047 | kfree(bo_va); |
| 1048 | if (r) |
| 1049 | return r; |
Christian König | f7a3db7 | 2014-11-27 14:48:44 +0100 | [diff] [blame] | 1050 | |
| 1051 | spin_lock(&vm->status_lock); |
Christian König | 036bf46 | 2014-07-18 08:56:40 +0200 | [diff] [blame] | 1052 | } |
Christian König | f7a3db7 | 2014-11-27 14:48:44 +0100 | [diff] [blame] | 1053 | spin_unlock(&vm->status_lock); |
Christian König | 036bf46 | 2014-07-18 08:56:40 +0200 | [diff] [blame] | 1054 | return 0; |
| 1055 | |
| 1056 | } |
| 1057 | |
| 1058 | /** |
Christian König | e31ad96 | 2014-07-18 09:24:53 +0200 | [diff] [blame] | 1059 | * radeon_vm_clear_invalids - clear invalidated BOs in the PT |
| 1060 | * |
| 1061 | * @rdev: radeon_device pointer |
| 1062 | * @vm: requested vm |
| 1063 | * |
| 1064 | * Make sure all invalidated BOs are cleared in the PT. |
| 1065 | * Returns 0 for success. |
| 1066 | * |
| 1067 | * PTs have to be reserved and mutex must be locked! |
| 1068 | */ |
| 1069 | int radeon_vm_clear_invalids(struct radeon_device *rdev, |
| 1070 | struct radeon_vm *vm) |
| 1071 | { |
Christian König | f7a3db7 | 2014-11-27 14:48:44 +0100 | [diff] [blame] | 1072 | struct radeon_bo_va *bo_va; |
Christian König | e31ad96 | 2014-07-18 09:24:53 +0200 | [diff] [blame] | 1073 | int r; |
| 1074 | |
Christian König | f7a3db7 | 2014-11-27 14:48:44 +0100 | [diff] [blame] | 1075 | spin_lock(&vm->status_lock); |
| 1076 | while (!list_empty(&vm->invalidated)) { |
| 1077 | bo_va = list_first_entry(&vm->invalidated, |
| 1078 | struct radeon_bo_va, vm_status); |
| 1079 | spin_unlock(&vm->status_lock); |
| 1080 | |
Christian König | e31ad96 | 2014-07-18 09:24:53 +0200 | [diff] [blame] | 1081 | r = radeon_vm_bo_update(rdev, bo_va, NULL); |
| 1082 | if (r) |
| 1083 | return r; |
Christian König | f7a3db7 | 2014-11-27 14:48:44 +0100 | [diff] [blame] | 1084 | |
| 1085 | spin_lock(&vm->status_lock); |
Christian König | e31ad96 | 2014-07-18 09:24:53 +0200 | [diff] [blame] | 1086 | } |
Christian König | f7a3db7 | 2014-11-27 14:48:44 +0100 | [diff] [blame] | 1087 | spin_unlock(&vm->status_lock); |
| 1088 | |
Christian König | e31ad96 | 2014-07-18 09:24:53 +0200 | [diff] [blame] | 1089 | return 0; |
| 1090 | } |
| 1091 | |
| 1092 | /** |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 1093 | * radeon_vm_bo_rmv - remove a bo to a specific vm |
| 1094 | * |
| 1095 | * @rdev: radeon_device pointer |
| 1096 | * @bo_va: requested bo_va |
| 1097 | * |
| 1098 | * Remove @bo_va->bo from the requested vm (cayman+). |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 1099 | * |
| 1100 | * Object have to be reserved! |
| 1101 | */ |
Christian König | 036bf46 | 2014-07-18 08:56:40 +0200 | [diff] [blame] | 1102 | void radeon_vm_bo_rmv(struct radeon_device *rdev, |
| 1103 | struct radeon_bo_va *bo_va) |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 1104 | { |
Christian König | 036bf46 | 2014-07-18 08:56:40 +0200 | [diff] [blame] | 1105 | struct radeon_vm *vm = bo_va->vm; |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 1106 | |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 1107 | list_del(&bo_va->bo_list); |
| 1108 | |
Christian König | 036bf46 | 2014-07-18 08:56:40 +0200 | [diff] [blame] | 1109 | mutex_lock(&vm->mutex); |
Alex Deucher | 0aea5e4 | 2014-07-30 11:49:56 -0400 | [diff] [blame] | 1110 | interval_tree_remove(&bo_va->it, &vm->va); |
Christian König | f7a3db7 | 2014-11-27 14:48:44 +0100 | [diff] [blame] | 1111 | spin_lock(&vm->status_lock); |
Christian König | e31ad96 | 2014-07-18 09:24:53 +0200 | [diff] [blame] | 1112 | list_del(&bo_va->vm_status); |
Christian König | 036bf46 | 2014-07-18 08:56:40 +0200 | [diff] [blame] | 1113 | |
Christian König | e31ad96 | 2014-07-18 09:24:53 +0200 | [diff] [blame] | 1114 | if (bo_va->addr) { |
Christian König | ee26d83 | 2014-07-30 21:04:57 +0200 | [diff] [blame] | 1115 | bo_va->bo = radeon_bo_ref(bo_va->bo); |
Christian König | 036bf46 | 2014-07-18 08:56:40 +0200 | [diff] [blame] | 1116 | list_add(&bo_va->vm_status, &vm->freed); |
| 1117 | } else { |
Christian König | 9421463 | 2014-11-19 14:01:26 +0100 | [diff] [blame] | 1118 | radeon_fence_unref(&bo_va->last_pt_update); |
Christian König | 036bf46 | 2014-07-18 08:56:40 +0200 | [diff] [blame] | 1119 | kfree(bo_va); |
| 1120 | } |
Christian König | f7a3db7 | 2014-11-27 14:48:44 +0100 | [diff] [blame] | 1121 | spin_unlock(&vm->status_lock); |
Christian König | 036bf46 | 2014-07-18 08:56:40 +0200 | [diff] [blame] | 1122 | |
| 1123 | mutex_unlock(&vm->mutex); |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 1124 | } |
| 1125 | |
| 1126 | /** |
| 1127 | * radeon_vm_bo_invalidate - mark the bo as invalid |
| 1128 | * |
| 1129 | * @rdev: radeon_device pointer |
| 1130 | * @vm: requested vm |
| 1131 | * @bo: radeon buffer object |
| 1132 | * |
| 1133 | * Mark @bo as invalid (cayman+). |
| 1134 | */ |
| 1135 | void radeon_vm_bo_invalidate(struct radeon_device *rdev, |
| 1136 | struct radeon_bo *bo) |
| 1137 | { |
| 1138 | struct radeon_bo_va *bo_va; |
| 1139 | |
| 1140 | list_for_each_entry(bo_va, &bo->va, bo_list) { |
Christian König | e31ad96 | 2014-07-18 09:24:53 +0200 | [diff] [blame] | 1141 | if (bo_va->addr) { |
Christian König | f7a3db7 | 2014-11-27 14:48:44 +0100 | [diff] [blame] | 1142 | spin_lock(&bo_va->vm->status_lock); |
Christian König | e31ad96 | 2014-07-18 09:24:53 +0200 | [diff] [blame] | 1143 | list_del(&bo_va->vm_status); |
| 1144 | list_add(&bo_va->vm_status, &bo_va->vm->invalidated); |
Christian König | f7a3db7 | 2014-11-27 14:48:44 +0100 | [diff] [blame] | 1145 | spin_unlock(&bo_va->vm->status_lock); |
Christian König | e31ad96 | 2014-07-18 09:24:53 +0200 | [diff] [blame] | 1146 | } |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 1147 | } |
| 1148 | } |
| 1149 | |
| 1150 | /** |
| 1151 | * radeon_vm_init - initialize a vm instance |
| 1152 | * |
| 1153 | * @rdev: radeon_device pointer |
| 1154 | * @vm: requested vm |
| 1155 | * |
| 1156 | * Init @vm fields (cayman+). |
| 1157 | */ |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 1158 | int radeon_vm_init(struct radeon_device *rdev, struct radeon_vm *vm) |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 1159 | { |
Christian König | 1c89d27 | 2014-05-10 12:17:56 +0200 | [diff] [blame] | 1160 | const unsigned align = min(RADEON_VM_PTB_ALIGN_SIZE, |
| 1161 | RADEON_VM_PTE_COUNT * 8); |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 1162 | unsigned pd_size, pd_entries, pts_size; |
Christian König | 7c42bc1 | 2014-11-19 14:01:25 +0100 | [diff] [blame] | 1163 | int i, r; |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 1164 | |
Christian König | cc9e67e | 2014-07-18 13:48:10 +0200 | [diff] [blame] | 1165 | vm->ib_bo_va = NULL; |
Christian König | 7c42bc1 | 2014-11-19 14:01:25 +0100 | [diff] [blame] | 1166 | for (i = 0; i < RADEON_NUM_RINGS; ++i) { |
| 1167 | vm->ids[i].id = 0; |
| 1168 | vm->ids[i].flushed_updates = NULL; |
| 1169 | vm->ids[i].last_id_use = NULL; |
| 1170 | } |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 1171 | mutex_init(&vm->mutex); |
Alex Deucher | 0aea5e4 | 2014-07-30 11:49:56 -0400 | [diff] [blame] | 1172 | vm->va = RB_ROOT; |
Christian König | f7a3db7 | 2014-11-27 14:48:44 +0100 | [diff] [blame] | 1173 | spin_lock_init(&vm->status_lock); |
Christian König | e31ad96 | 2014-07-18 09:24:53 +0200 | [diff] [blame] | 1174 | INIT_LIST_HEAD(&vm->invalidated); |
Christian König | 036bf46 | 2014-07-18 08:56:40 +0200 | [diff] [blame] | 1175 | INIT_LIST_HEAD(&vm->freed); |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 1176 | |
| 1177 | pd_size = radeon_vm_directory_size(rdev); |
| 1178 | pd_entries = radeon_vm_num_pdes(rdev); |
| 1179 | |
| 1180 | /* allocate page table array */ |
| 1181 | pts_size = pd_entries * sizeof(struct radeon_vm_pt); |
| 1182 | vm->page_tables = kzalloc(pts_size, GFP_KERNEL); |
| 1183 | if (vm->page_tables == NULL) { |
| 1184 | DRM_ERROR("Cannot allocate memory for page table array\n"); |
| 1185 | return -ENOMEM; |
| 1186 | } |
| 1187 | |
Christian König | 7dae77f | 2014-07-02 21:28:10 +0200 | [diff] [blame] | 1188 | r = radeon_bo_create(rdev, pd_size, align, true, |
Michel Dänzer | 02376d8 | 2014-07-17 19:01:08 +0900 | [diff] [blame] | 1189 | RADEON_GEM_DOMAIN_VRAM, 0, NULL, |
Maarten Lankhorst | 831b696 | 2014-09-18 14:11:56 +0200 | [diff] [blame] | 1190 | NULL, &vm->page_directory); |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 1191 | if (r) |
| 1192 | return r; |
| 1193 | |
| 1194 | r = radeon_vm_clear_bo(rdev, vm->page_directory); |
| 1195 | if (r) { |
| 1196 | radeon_bo_unref(&vm->page_directory); |
| 1197 | vm->page_directory = NULL; |
| 1198 | return r; |
| 1199 | } |
| 1200 | |
| 1201 | return 0; |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 1202 | } |
| 1203 | |
| 1204 | /** |
| 1205 | * radeon_vm_fini - tear down a vm instance |
| 1206 | * |
| 1207 | * @rdev: radeon_device pointer |
| 1208 | * @vm: requested vm |
| 1209 | * |
| 1210 | * Tear down @vm (cayman+). |
| 1211 | * Unbind the VM and remove all bos from the vm bo list |
| 1212 | */ |
| 1213 | void radeon_vm_fini(struct radeon_device *rdev, struct radeon_vm *vm) |
| 1214 | { |
| 1215 | struct radeon_bo_va *bo_va, *tmp; |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 1216 | int i, r; |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 1217 | |
Alex Deucher | 0aea5e4 | 2014-07-30 11:49:56 -0400 | [diff] [blame] | 1218 | if (!RB_EMPTY_ROOT(&vm->va)) { |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 1219 | dev_err(rdev->dev, "still active bo inside vm\n"); |
| 1220 | } |
Alex Deucher | 0aea5e4 | 2014-07-30 11:49:56 -0400 | [diff] [blame] | 1221 | rbtree_postorder_for_each_entry_safe(bo_va, tmp, &vm->va, it.rb) { |
| 1222 | interval_tree_remove(&bo_va->it, &vm->va); |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 1223 | r = radeon_bo_reserve(bo_va->bo, false); |
| 1224 | if (!r) { |
| 1225 | list_del_init(&bo_va->bo_list); |
| 1226 | radeon_bo_unreserve(bo_va->bo); |
Christian König | 9421463 | 2014-11-19 14:01:26 +0100 | [diff] [blame] | 1227 | radeon_fence_unref(&bo_va->last_pt_update); |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 1228 | kfree(bo_va); |
| 1229 | } |
| 1230 | } |
Christian König | ee26d83 | 2014-07-30 21:04:57 +0200 | [diff] [blame] | 1231 | list_for_each_entry_safe(bo_va, tmp, &vm->freed, vm_status) { |
| 1232 | radeon_bo_unref(&bo_va->bo); |
Christian König | 9421463 | 2014-11-19 14:01:26 +0100 | [diff] [blame] | 1233 | radeon_fence_unref(&bo_va->last_pt_update); |
Christian König | 036bf46 | 2014-07-18 08:56:40 +0200 | [diff] [blame] | 1234 | kfree(bo_va); |
Christian König | ee26d83 | 2014-07-30 21:04:57 +0200 | [diff] [blame] | 1235 | } |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 1236 | |
| 1237 | for (i = 0; i < radeon_vm_num_pdes(rdev); i++) |
| 1238 | radeon_bo_unref(&vm->page_tables[i].bo); |
| 1239 | kfree(vm->page_tables); |
| 1240 | |
| 1241 | radeon_bo_unref(&vm->page_directory); |
| 1242 | |
Christian König | 7c42bc1 | 2014-11-19 14:01:25 +0100 | [diff] [blame] | 1243 | for (i = 0; i < RADEON_NUM_RINGS; ++i) { |
| 1244 | radeon_fence_unref(&vm->ids[i].flushed_updates); |
| 1245 | radeon_fence_unref(&vm->ids[i].last_id_use); |
| 1246 | } |
Christian König | 6d2f294 | 2014-02-20 13:42:17 +0100 | [diff] [blame] | 1247 | |
| 1248 | mutex_destroy(&vm->mutex); |
Christian König | 2280ab5 | 2014-02-20 10:25:15 +0100 | [diff] [blame] | 1249 | } |