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->gmc.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, AMDGPU_GEM_DOMAIN_VRAM, 0,
  63                              ttm_bo_type_kernel, NULL, &vram_obj);
  64         if (r) {
  65                 DRM_ERROR("Failed to create VRAM object\n");
  66                 goto out_cleanup;
  67         }
  68         r = amdgpu_bo_reserve(vram_obj, false);
  69         if (unlikely(r != 0))
  70                 goto out_unref;
  71         r = amdgpu_bo_pin(vram_obj, AMDGPU_GEM_DOMAIN_VRAM, &vram_addr);
  72         if (r) {
  73                 DRM_ERROR("Failed to pin VRAM object\n");
  74                 goto out_unres;
  75         }
  76         for (i = 0; i < n; i++) {
  77                 void *gtt_map, *vram_map;
  78                 void **gart_start, **gart_end;
  79                 void **vram_start, **vram_end;
  80                 struct dma_fence *fence = NULL;
  81
  82                 r = amdgpu_bo_create(adev, size, PAGE_SIZE,
  83                                      AMDGPU_GEM_DOMAIN_GTT, 0,
  84                                      ttm_bo_type_kernel, NULL, gtt_obj + i);
  85                 if (r) {
  86                         DRM_ERROR("Failed to create GTT object %d\n", i);
  87                         goto out_lclean;
  88                 }
  89
  90                 r = amdgpu_bo_reserve(gtt_obj[i], false);
  91                 if (unlikely(r != 0))
  92                         goto out_lclean_unref;
  93                 r = amdgpu_bo_pin(gtt_obj[i], AMDGPU_GEM_DOMAIN_GTT, &gart_addr);
  94                 if (r) {
  95                         DRM_ERROR("Failed to pin GTT object %d\n", i);
  96                         goto out_lclean_unres;
  97                 }
  98
  99                 r = amdgpu_bo_kmap(gtt_obj[i], &gtt_map);
 100                 if (r) {
 101                         DRM_ERROR("Failed to map GTT object %d\n", i);
 102                         goto out_lclean_unpin;
 103                 }
 104
 105                 for (gart_start = gtt_map, gart_end = gtt_map + size;
 106                      gart_start < gart_end;
 107                      gart_start++)
 108                         *gart_start = gart_start;
 109
 110                 amdgpu_bo_kunmap(gtt_obj[i]);
 111
 112                 r = amdgpu_copy_buffer(ring, gart_addr, vram_addr,
 113                                        size, NULL, &fence, false, false);
 114
 115                 if (r) {
 116                         DRM_ERROR("Failed GTT->VRAM copy %d\n", i);
 117                         goto out_lclean_unpin;
 118                 }
 119
 120                 r = dma_fence_wait(fence, false);
 121                 if (r) {
 122                         DRM_ERROR("Failed to wait for GTT->VRAM fence %d\n", i);
 123                         goto out_lclean_unpin;
 124                 }
 125
 126                 dma_fence_put(fence);
 127
 128                 r = amdgpu_bo_kmap(vram_obj, &vram_map);
 129                 if (r) {
 130                         DRM_ERROR("Failed to map VRAM object after copy %d\n", i);
 131                         goto out_lclean_unpin;
 132                 }
 133
 134                 for (gart_start = gtt_map, gart_end = gtt_map + size,
 135                      vram_start = vram_map, vram_end = vram_map + size;
 136                      vram_start < vram_end;
 137                      gart_start++, vram_start++) {
 138                         if (*vram_start != gart_start) {
 139                                 DRM_ERROR("Incorrect GTT->VRAM copy %d: Got 0x%p, "
 140                                           "expected 0x%p (GTT/VRAM offset "
 141                                           "0x%16llx/0x%16llx)\n",
 142                                           i, *vram_start, gart_start,
 143                                           (unsigned long long)
 144                                           (gart_addr - adev->gmc.gart_start +
 145                                            (void*)gart_start - gtt_map),
 146                                           (unsigned long long)
 147                                           (vram_addr - adev->gmc.vram_start +
 148                                            (void*)gart_start - gtt_map));
 149                                 amdgpu_bo_kunmap(vram_obj);
 150                                 goto out_lclean_unpin;
 151                         }
 152                         *vram_start = vram_start;
 153                 }
 154
 155                 amdgpu_bo_kunmap(vram_obj);
 156
 157                 r = amdgpu_copy_buffer(ring, vram_addr, gart_addr,
 158                                        size, NULL, &fence, false, false);
 159
 160                 if (r) {
 161                         DRM_ERROR("Failed VRAM->GTT copy %d\n", i);
 162                         goto out_lclean_unpin;
 163                 }
 164
 165                 r = dma_fence_wait(fence, false);
 166                 if (r) {
 167                         DRM_ERROR("Failed to wait for VRAM->GTT fence %d\n", i);
 168                         goto out_lclean_unpin;
 169                 }
 170
 171                 dma_fence_put(fence);
 172
 173                 r = amdgpu_bo_kmap(gtt_obj[i], &gtt_map);
 174                 if (r) {
 175                         DRM_ERROR("Failed to map GTT object after copy %d\n", i);
 176                         goto out_lclean_unpin;
 177                 }
 178
 179                 for (gart_start = gtt_map, gart_end = gtt_map + size,
 180                      vram_start = vram_map, vram_end = vram_map + size;
 181                      gart_start < gart_end;
 182                      gart_start++, vram_start++) {
 183                         if (*gart_start != vram_start) {
 184                                 DRM_ERROR("Incorrect VRAM->GTT copy %d: Got 0x%p, "
 185                                           "expected 0x%p (VRAM/GTT offset "
 186                                           "0x%16llx/0x%16llx)\n",
 187                                           i, *gart_start, vram_start,
 188                                           (unsigned long long)
 189                                           (vram_addr - adev->gmc.vram_start +
 190                                            (void*)vram_start - vram_map),
 191                                           (unsigned long long)
 192                                           (gart_addr - adev->gmc.gart_start +
 193                                            (void*)vram_start - vram_map));
 194                                 amdgpu_bo_kunmap(gtt_obj[i]);
 195                                 goto out_lclean_unpin;
 196                         }
 197                 }
 198
 199                 amdgpu_bo_kunmap(gtt_obj[i]);
 200
 201                 DRM_INFO("Tested GTT->VRAM and VRAM->GTT copy for GTT offset 0x%llx\n",
 202                          gart_addr - adev->gmc.gart_start);
 203                 continue;
 204
 205 out_lclean_unpin:
 206                 amdgpu_bo_unpin(gtt_obj[i]);
 207 out_lclean_unres:
 208                 amdgpu_bo_unreserve(gtt_obj[i]);
 209 out_lclean_unref:
 210                 amdgpu_bo_unref(&gtt_obj[i]);
 211 out_lclean:
 212                 for (--i; i >= 0; --i) {
 213                         amdgpu_bo_unpin(gtt_obj[i]);
 214                         amdgpu_bo_unreserve(gtt_obj[i]);
 215                         amdgpu_bo_unref(&gtt_obj[i]);
 216                 }
 217                 if (fence)
 218                         dma_fence_put(fence);
 219                 break;
 220         }
 221
 222         amdgpu_bo_unpin(vram_obj);
 223 out_unres:
 224         amdgpu_bo_unreserve(vram_obj);
 225 out_unref:
 226         amdgpu_bo_unref(&vram_obj);
 227 out_cleanup:
 228         kfree(gtt_obj);
 229         if (r) {
 230                 pr_warn("Error while testing BO move\n");
 231         }
 232 }
 233
 234 void amdgpu_test_moves(struct amdgpu_device *adev)
 235 {
 236         if (adev->mman.buffer_funcs)
 237                 amdgpu_do_test_moves(adev);
 238 }