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/radeon_drm.h> 26 #include "radeon_reg.h" 27 #include "radeon.h" 28 29 30 /* Test BO GTT->VRAM and VRAM->GTT GPU copies across the whole GTT aperture */ 31 void radeon_test_moves(struct radeon_device *rdev) 32 { 33 struct radeon_object *vram_obj = NULL; 34 struct radeon_object **gtt_obj = NULL; 35 struct radeon_fence *fence = NULL; 36 uint64_t gtt_addr, vram_addr; 37 unsigned i, n, size; 38 int r; 39 40 size = 1024 * 1024; 41 42 /* Number of tests = 43 * (Total GTT - IB pool - writeback page - ring buffer) / test size 44 */ 45 n = (rdev->mc.gtt_size - RADEON_IB_POOL_SIZE*64*1024 - RADEON_GPU_PAGE_SIZE - 46 rdev->cp.ring_size) / size; 47 48 gtt_obj = kzalloc(n * sizeof(*gtt_obj), GFP_KERNEL); 49 if (!gtt_obj) { 50 DRM_ERROR("Failed to allocate %d pointers\n", n); 51 r = 1; 52 goto out_cleanup; 53 } 54 55 r = radeon_object_create(rdev, NULL, size, true, RADEON_GEM_DOMAIN_VRAM, 56 false, &vram_obj); 57 if (r) { 58 DRM_ERROR("Failed to create VRAM object\n"); 59 goto out_cleanup; 60 } 61 62 r = radeon_object_pin(vram_obj, RADEON_GEM_DOMAIN_VRAM, &vram_addr); 63 if (r) { 64 DRM_ERROR("Failed to pin VRAM object\n"); 65 goto out_cleanup; 66 } 67 68 for (i = 0; i < n; i++) { 69 void *gtt_map, *vram_map; 70 void **gtt_start, **gtt_end; 71 void **vram_start, **vram_end; 72 73 r = radeon_object_create(rdev, NULL, size, true, 74 RADEON_GEM_DOMAIN_GTT, false, gtt_obj + i); 75 if (r) { 76 DRM_ERROR("Failed to create GTT object %d\n", i); 77 goto out_cleanup; 78 } 79 80 r = radeon_object_pin(gtt_obj[i], RADEON_GEM_DOMAIN_GTT, >t_addr); 81 if (r) { 82 DRM_ERROR("Failed to pin GTT object %d\n", i); 83 goto out_cleanup; 84 } 85 86 r = radeon_object_kmap(gtt_obj[i], >t_map); 87 if (r) { 88 DRM_ERROR("Failed to map GTT object %d\n", i); 89 goto out_cleanup; 90 } 91 92 for (gtt_start = gtt_map, gtt_end = gtt_map + size; 93 gtt_start < gtt_end; 94 gtt_start++) 95 *gtt_start = gtt_start; 96 97 radeon_object_kunmap(gtt_obj[i]); 98 99 r = radeon_fence_create(rdev, &fence); 100 if (r) { 101 DRM_ERROR("Failed to create GTT->VRAM fence %d\n", i); 102 goto out_cleanup; 103 } 104 105 r = radeon_copy(rdev, gtt_addr, vram_addr, size / RADEON_GPU_PAGE_SIZE, fence); 106 if (r) { 107 DRM_ERROR("Failed GTT->VRAM copy %d\n", i); 108 goto out_cleanup; 109 } 110 111 r = radeon_fence_wait(fence, false); 112 if (r) { 113 DRM_ERROR("Failed to wait for GTT->VRAM fence %d\n", i); 114 goto out_cleanup; 115 } 116 117 radeon_fence_unref(&fence); 118 119 r = radeon_object_kmap(vram_obj, &vram_map); 120 if (r) { 121 DRM_ERROR("Failed to map VRAM object after copy %d\n", i); 122 goto out_cleanup; 123 } 124 125 for (gtt_start = gtt_map, gtt_end = gtt_map + size, 126 vram_start = vram_map, vram_end = vram_map + size; 127 vram_start < vram_end; 128 gtt_start++, vram_start++) { 129 if (*vram_start != gtt_start) { 130 DRM_ERROR("Incorrect GTT->VRAM copy %d: Got 0x%p, " 131 "expected 0x%p (GTT map 0x%p-0x%p)\n", 132 i, *vram_start, gtt_start, gtt_map, 133 gtt_end); 134 radeon_object_kunmap(vram_obj); 135 goto out_cleanup; 136 } 137 *vram_start = vram_start; 138 } 139 140 radeon_object_kunmap(vram_obj); 141 142 r = radeon_fence_create(rdev, &fence); 143 if (r) { 144 DRM_ERROR("Failed to create VRAM->GTT fence %d\n", i); 145 goto out_cleanup; 146 } 147 148 r = radeon_copy(rdev, vram_addr, gtt_addr, size / RADEON_GPU_PAGE_SIZE, fence); 149 if (r) { 150 DRM_ERROR("Failed VRAM->GTT copy %d\n", i); 151 goto out_cleanup; 152 } 153 154 r = radeon_fence_wait(fence, false); 155 if (r) { 156 DRM_ERROR("Failed to wait for VRAM->GTT fence %d\n", i); 157 goto out_cleanup; 158 } 159 160 radeon_fence_unref(&fence); 161 162 r = radeon_object_kmap(gtt_obj[i], >t_map); 163 if (r) { 164 DRM_ERROR("Failed to map GTT object after copy %d\n", i); 165 goto out_cleanup; 166 } 167 168 for (gtt_start = gtt_map, gtt_end = gtt_map + size, 169 vram_start = vram_map, vram_end = vram_map + size; 170 gtt_start < gtt_end; 171 gtt_start++, vram_start++) { 172 if (*gtt_start != vram_start) { 173 DRM_ERROR("Incorrect VRAM->GTT copy %d: Got 0x%p, " 174 "expected 0x%p (VRAM map 0x%p-0x%p)\n", 175 i, *gtt_start, vram_start, vram_map, 176 vram_end); 177 radeon_object_kunmap(gtt_obj[i]); 178 goto out_cleanup; 179 } 180 } 181 182 radeon_object_kunmap(gtt_obj[i]); 183 184 DRM_INFO("Tested GTT->VRAM and VRAM->GTT copy for GTT offset 0x%llx\n", 185 gtt_addr - rdev->mc.gtt_location); 186 } 187 188 out_cleanup: 189 if (vram_obj) { 190 radeon_object_unpin(vram_obj); 191 radeon_object_unref(&vram_obj); 192 } 193 if (gtt_obj) { 194 for (i = 0; i < n; i++) { 195 if (gtt_obj[i]) { 196 radeon_object_unpin(gtt_obj[i]); 197 radeon_object_unref(>t_obj[i]); 198 } 199 } 200 kfree(gtt_obj); 201 } 202 if (fence) { 203 radeon_fence_unref(&fence); 204 } 205 if (r) { 206 printk(KERN_WARNING "Error while testing BO move.\n"); 207 } 208 } 209 210