drivers/gpu/drm/amd/amdgpu/amdgpu_test.c

   1 /*
   2  * Copyright 2009 VMware, Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  * Authors: Michel Dänzer
  23  */
  24 #include <drm/drmP.h>
  25 #include <drm/amdgpu_drm.h>
  26 #include "amdgpu.h"
  27 #include "amdgpu_uvd.h"
  28 #include "amdgpu_vce.h"
  29
  30 /* Test BO GTT->VRAM and VRAM->GTT GPU copies across the whole GTT aperture */
  31 static void amdgpu_do_test_moves(struct amdgpu_device *adev)
  32 {
  33         struct amdgpu_ring *ring = adev->mman.buffer_funcs_ring;
  34         struct amdgpu_bo *vram_obj = NULL;
  35         struct amdgpu_bo **gtt_obj = NULL;
  36         uint64_t gart_addr, vram_addr;
  37         unsigned n, size;
  38         int i, r;
  39
  40         size = 1024 * 1024;
  41
  42         /* Number of tests =
  43          * (Total GTT - IB pool - writeback page - ring buffers) / test size
  44          */
  45         n = adev->mc.gart_size - AMDGPU_IB_POOL_SIZE*64*1024;
  46         for (i = 0; i < AMDGPU_MAX_RINGS; ++i)
  47                 if (adev->rings[i])
  48                         n -= adev->rings[i]->ring_size;
  49         if (adev->wb.wb_obj)
  50                 n -= AMDGPU_GPU_PAGE_SIZE;
  51         if (adev->irq.ih.ring_obj)
  52                 n -= adev->irq.ih.ring_size;
  53         n /= size;
  54
  55         gtt_obj = kzalloc(n * sizeof(*gtt_obj), GFP_KERNEL);
  56         if (!gtt_obj) {
  57                 DRM_ERROR("Failed to allocate %d pointers\n", n);
  58                 r = 1;
  59                 goto out_cleanup;
  60         }
  61
  62         r = amdgpu_bo_create(adev, size, PAGE_SIZE, true,
  63                              AMDGPU_GEM_DOMAIN_VRAM, 0,
  64                              NULL, NULL, 0, &vram_obj);
  65         if (r) {
  66                 DRM_ERROR("Failed to create VRAM object\n");
  67                 goto out_cleanup;
  68         }
  69         r = amdgpu_bo_reserve(vram_obj, false);
  70         if (unlikely(r != 0))
  71                 goto out_unref;
  72         r = amdgpu_bo_pin(vram_obj, AMDGPU_GEM_DOMAIN_VRAM, &vram_addr);
  73         if (r) {
  74                 DRM_ERROR("Failed to pin VRAM object\n");
  75                 goto out_unres;
  76         }
  77         for (i = 0; i < n; i++) {
  78                 void *gtt_map, *vram_map;
  79                 void **gart_start, **gart_end;
  80                 void **vram_start, **vram_end;
  81                 struct dma_fence *fence = NULL;
  82
  83                 r = amdgpu_bo_create(adev, size, PAGE_SIZE, true,
  84                                      AMDGPU_GEM_DOMAIN_GTT, 0, NULL,
  85                                      NULL, 0, gtt_obj + i);
  86                 if (r) {
  87                         DRM_ERROR("Failed to create GTT object %d\n", i);
  88                         goto out_lclean;
  89                 }
  90
  91                 r = amdgpu_bo_reserve(gtt_obj[i], false);
  92                 if (unlikely(r != 0))
  93                         goto out_lclean_unref;
  94                 r = amdgpu_bo_pin(gtt_obj[i], AMDGPU_GEM_DOMAIN_GTT, &gart_addr);
  95                 if (r) {
  96                         DRM_ERROR("Failed to pin GTT object %d\n", i);
  97                         goto out_lclean_unres;
  98                 }
  99
 100                 r = amdgpu_bo_kmap(gtt_obj[i], &gtt_map);
 101                 if (r) {
 102                         DRM_ERROR("Failed to map GTT object %d\n", i);
 103                         goto out_lclean_unpin;
 104                 }
 105
 106                 for (gart_start = gtt_map, gart_end = gtt_map + size;
 107                      gart_start < gart_end;
 108                      gart_start++)
 109                         *gart_start = gart_start;
 110
 111                 amdgpu_bo_kunmap(gtt_obj[i]);
 112
 113                 r = amdgpu_copy_buffer(ring, gart_addr, vram_addr,
 114                                        size, NULL, &fence, false, false);
 115
 116                 if (r) {
 117                         DRM_ERROR("Failed GTT->VRAM copy %d\n", i);
 118                         goto out_lclean_unpin;
 119                 }
 120
 121                 r = dma_fence_wait(fence, false);
 122                 if (r) {
 123                         DRM_ERROR("Failed to wait for GTT->VRAM fence %d\n", i);
 124                         goto out_lclean_unpin;
 125                 }
 126
 127                 dma_fence_put(fence);
 128                 fence = NULL;
 129
 130                 r = amdgpu_bo_kmap(vram_obj, &vram_map);
 131                 if (r) {
 132                         DRM_ERROR("Failed to map VRAM object after copy %d\n", i);
 133                         goto out_lclean_unpin;
 134                 }
 135
 136                 for (gart_start = gtt_map, gart_end = gtt_map + size,
 137                      vram_start = vram_map, vram_end = vram_map + size;
 138                      vram_start < vram_end;
 139                      gart_start++, vram_start++) {
 140                         if (*vram_start != gart_start) {
 141                                 DRM_ERROR("Incorrect GTT->VRAM copy %d: Got 0x%p, "
 142                                           "expected 0x%p (GTT/VRAM offset "
 143                                           "0x%16llx/0x%16llx)\n",
 144                                           i, *vram_start, gart_start,
 145                                           (unsigned long long)
 146                                           (gart_addr - adev->mc.gart_start +
 147                                            (void*)gart_start - gtt_map),
 148                                           (unsigned long long)
 149                                           (vram_addr - adev->mc.vram_start +
 150                                            (void*)gart_start - gtt_map));
 151                                 amdgpu_bo_kunmap(vram_obj);
 152                                 goto out_lclean_unpin;
 153                         }
 154                         *vram_start = vram_start;
 155                 }
 156
 157                 amdgpu_bo_kunmap(vram_obj);
 158
 159                 r = amdgpu_copy_buffer(ring, vram_addr, gart_addr,
 160                                        size, NULL, &fence, false, false);
 161
 162                 if (r) {
 163                         DRM_ERROR("Failed VRAM->GTT copy %d\n", i);
 164                         goto out_lclean_unpin;
 165                 }
 166
 167                 r = dma_fence_wait(fence, false);
 168                 if (r) {
 169                         DRM_ERROR("Failed to wait for VRAM->GTT fence %d\n", i);
 170                         goto out_lclean_unpin;
 171                 }
 172
 173                 dma_fence_put(fence);
 174                 fence = NULL;
 175
 176                 r = amdgpu_bo_kmap(gtt_obj[i], &gtt_map);
 177                 if (r) {
 178                         DRM_ERROR("Failed to map GTT object after copy %d\n", i);
 179                         goto out_lclean_unpin;
 180                 }
 181
 182                 for (gart_start = gtt_map, gart_end = gtt_map + size,
 183                      vram_start = vram_map, vram_end = vram_map + size;
 184                      gart_start < gart_end;
 185                      gart_start++, vram_start++) {
 186                         if (*gart_start != vram_start) {
 187                                 DRM_ERROR("Incorrect VRAM->GTT copy %d: Got 0x%p, "
 188                                           "expected 0x%p (VRAM/GTT offset "
 189                                           "0x%16llx/0x%16llx)\n",
 190                                           i, *gart_start, vram_start,
 191                                           (unsigned long long)
 192                                           (vram_addr - adev->mc.vram_start +
 193                                            (void*)vram_start - vram_map),
 194                                           (unsigned long long)
 195                                           (gart_addr - adev->mc.gart_start +
 196                                            (void*)vram_start - vram_map));
 197                                 amdgpu_bo_kunmap(gtt_obj[i]);
 198                                 goto out_lclean_unpin;
 199                         }
 200                 }
 201
 202                 amdgpu_bo_kunmap(gtt_obj[i]);
 203
 204                 DRM_INFO("Tested GTT->VRAM and VRAM->GTT copy for GTT offset 0x%llx\n",
 205                          gart_addr - adev->mc.gart_start);
 206                 continue;
 207
 208 out_lclean_unpin:
 209                 amdgpu_bo_unpin(gtt_obj[i]);
 210 out_lclean_unres:
 211                 amdgpu_bo_unreserve(gtt_obj[i]);
 212 out_lclean_unref:
 213                 amdgpu_bo_unref(&gtt_obj[i]);
 214 out_lclean:
 215                 for (--i; i >= 0; --i) {
 216                         amdgpu_bo_unpin(gtt_obj[i]);
 217                         amdgpu_bo_unreserve(gtt_obj[i]);
 218                         amdgpu_bo_unref(&gtt_obj[i]);
 219                 }
 220                 if (fence)
 221                         dma_fence_put(fence);
 222                 break;
 223         }
 224
 225         amdgpu_bo_unpin(vram_obj);
 226 out_unres:
 227         amdgpu_bo_unreserve(vram_obj);
 228 out_unref:
 229         amdgpu_bo_unref(&vram_obj);
 230 out_cleanup:
 231         kfree(gtt_obj);
 232         if (r) {
 233                 pr_warn("Error while testing BO move\n");
 234         }
 235 }
 236
 237 void amdgpu_test_moves(struct amdgpu_device *adev)
 238 {
 239         if (adev->mman.buffer_funcs)
 240                 amdgpu_do_test_moves(adev);
 241 }