1/*
2 * Copyright 2009 Jerome Glisse.
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: Jerome Glisse
23 */
24#include <drm/drmP.h>
25#include <drm/radeon_drm.h>
26#include "radeon_reg.h"
27#include "radeon.h"
28
29#define RADEON_BENCHMARK_COPY_BLIT 1
30#define RADEON_BENCHMARK_COPY_DMA 0
31
32#define RADEON_BENCHMARK_ITERATIONS 1024
33#define RADEON_BENCHMARK_COMMON_MODES_N 17
34
35static int radeon_benchmark_do_move(struct radeon_device *rdev, unsigned size,
36 uint64_t saddr, uint64_t daddr,
37 int flag, int n,
38 struct reservation_object *resv)
39{
40 unsigned long start_jiffies;
41 unsigned long end_jiffies;
42 struct radeon_fence *fence = NULL;
43 int i, r;
44
45 start_jiffies = jiffies;
46 for (i = 0; i < n; i++) {
47 switch (flag) {
48 case RADEON_BENCHMARK_COPY_DMA:
49 fence = radeon_copy_dma(rdev, saddr, daddr,
50 size / RADEON_GPU_PAGE_SIZE,
51 resv);
52 break;
53 case RADEON_BENCHMARK_COPY_BLIT:
54 fence = radeon_copy_blit(rdev, saddr, daddr,
55 size / RADEON_GPU_PAGE_SIZE,
56 resv);
57 break;
58 default:
59 DRM_ERROR("Unknown copy method\n");
60 return -EINVAL;
61 }
62 if (IS_ERR(fence))
63 return PTR_ERR(fence);
64
65 r = radeon_fence_wait(fence, false);
66 radeon_fence_unref(&fence);
67 if (r)
68 return r;
69 }
70 end_jiffies = jiffies;
71 return jiffies_to_msecs(end_jiffies - start_jiffies);
72}
73
74
75static void radeon_benchmark_log_results(int n, unsigned size,
76 unsigned int time,
77 unsigned sdomain, unsigned ddomain,
78 char *kind)
79{
80 unsigned int throughput = (n * (size >> 10)) / time;
81 DRM_INFO("radeon: %s %u bo moves of %u kB from"
82 " %d to %d in %u ms, throughput: %u Mb/s or %u MB/s\n",
83 kind, n, size >> 10, sdomain, ddomain, time,
84 throughput * 8, throughput);
85}
86
87static void radeon_benchmark_move(struct radeon_device *rdev, unsigned size,
88 unsigned sdomain, unsigned ddomain)
89{
90 struct radeon_bo *dobj = NULL;
91 struct radeon_bo *sobj = NULL;
92 uint64_t saddr, daddr;
93 int r, n;
94 int time;
95
96 n = RADEON_BENCHMARK_ITERATIONS;
97 r = radeon_bo_create(rdev, size, PAGE_SIZE, true, sdomain, 0, NULL, NULL, &sobj);
98 if (r) {
99 goto out_cleanup;
100 }
101 r = radeon_bo_reserve(sobj, false);
102 if (unlikely(r != 0))
103 goto out_cleanup;
104 r = radeon_bo_pin(sobj, sdomain, &saddr);
105 radeon_bo_unreserve(sobj);
106 if (r) {
107 goto out_cleanup;
108 }
109 r = radeon_bo_create(rdev, size, PAGE_SIZE, true, ddomain, 0, NULL, NULL, &dobj);
110 if (r) {
111 goto out_cleanup;
112 }
113 r = radeon_bo_reserve(dobj, false);
114 if (unlikely(r != 0))
115 goto out_cleanup;
116 r = radeon_bo_pin(dobj, ddomain, &daddr);
117 radeon_bo_unreserve(dobj);
118 if (r) {
119 goto out_cleanup;
120 }
121
122 if (rdev->asic->copy.dma) {
123 time = radeon_benchmark_do_move(rdev, size, saddr, daddr,
124 RADEON_BENCHMARK_COPY_DMA, n,
125 dobj->tbo.resv);
126 if (time < 0)
127 goto out_cleanup;
128 if (time > 0)
129 radeon_benchmark_log_results(n, size, time,
130 sdomain, ddomain, "dma");
131 }
132
133 if (rdev->asic->copy.blit) {
134 time = radeon_benchmark_do_move(rdev, size, saddr, daddr,
135 RADEON_BENCHMARK_COPY_BLIT, n,
136 dobj->tbo.resv);
137 if (time < 0)
138 goto out_cleanup;
139 if (time > 0)
140 radeon_benchmark_log_results(n, size, time,
141 sdomain, ddomain, "blit");
142 }
143
144out_cleanup:
145 if (sobj) {
146 r = radeon_bo_reserve(sobj, false);
147 if (likely(r == 0)) {
148 radeon_bo_unpin(sobj);
149 radeon_bo_unreserve(sobj);
150 }
151 radeon_bo_unref(&sobj);
152 }
153 if (dobj) {
154 r = radeon_bo_reserve(dobj, false);
155 if (likely(r == 0)) {
156 radeon_bo_unpin(dobj);
157 radeon_bo_unreserve(dobj);
158 }
159 radeon_bo_unref(&dobj);
160 }
161
162 if (r) {
163 DRM_ERROR("Error while benchmarking BO move.\n");
164 }
165}
166
167void radeon_benchmark(struct radeon_device *rdev, int test_number)
168{
169 int i;
170 int common_modes[RADEON_BENCHMARK_COMMON_MODES_N] = {
171 640 * 480 * 4,
172 720 * 480 * 4,
173 800 * 600 * 4,
174 848 * 480 * 4,
175 1024 * 768 * 4,
176 1152 * 768 * 4,
177 1280 * 720 * 4,
178 1280 * 800 * 4,
179 1280 * 854 * 4,
180 1280 * 960 * 4,
181 1280 * 1024 * 4,
182 1440 * 900 * 4,
183 1400 * 1050 * 4,
184 1680 * 1050 * 4,
185 1600 * 1200 * 4,
186 1920 * 1080 * 4,
187 1920 * 1200 * 4
188 };
189
190 switch (test_number) {
191 case 1:
192 /* simple test, VRAM to GTT and GTT to VRAM */
193 radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_GTT,
194 RADEON_GEM_DOMAIN_VRAM);
195 radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_VRAM,
196 RADEON_GEM_DOMAIN_GTT);
197 break;
198 case 2:
199 /* simple test, VRAM to VRAM */
200 radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_VRAM,
201 RADEON_GEM_DOMAIN_VRAM);
202 break;
203 case 3:
204 /* GTT to VRAM, buffer size sweep, powers of 2 */
205 for (i = 1; i <= 16384; i <<= 1)
206 radeon_benchmark_move(rdev, i * RADEON_GPU_PAGE_SIZE,
207 RADEON_GEM_DOMAIN_GTT,
208 RADEON_GEM_DOMAIN_VRAM);
209 break;
210 case 4:
211 /* VRAM to GTT, buffer size sweep, powers of 2 */
212 for (i = 1; i <= 16384; i <<= 1)
213 radeon_benchmark_move(rdev, i * RADEON_GPU_PAGE_SIZE,
214 RADEON_GEM_DOMAIN_VRAM,
215 RADEON_GEM_DOMAIN_GTT);
216 break;
217 case 5:
218 /* VRAM to VRAM, buffer size sweep, powers of 2 */
219 for (i = 1; i <= 16384; i <<= 1)
220 radeon_benchmark_move(rdev, i * RADEON_GPU_PAGE_SIZE,
221 RADEON_GEM_DOMAIN_VRAM,
222 RADEON_GEM_DOMAIN_VRAM);
223 break;
224 case 6:
225 /* GTT to VRAM, buffer size sweep, common modes */
226 for (i = 0; i < RADEON_BENCHMARK_COMMON_MODES_N; i++)
227 radeon_benchmark_move(rdev, common_modes[i],
228 RADEON_GEM_DOMAIN_GTT,
229 RADEON_GEM_DOMAIN_VRAM);
230 break;
231 case 7:
232 /* VRAM to GTT, buffer size sweep, common modes */
233 for (i = 0; i < RADEON_BENCHMARK_COMMON_MODES_N; i++)
234 radeon_benchmark_move(rdev, common_modes[i],
235 RADEON_GEM_DOMAIN_VRAM,
236 RADEON_GEM_DOMAIN_GTT);
237 break;
238 case 8:
239 /* VRAM to VRAM, buffer size sweep, common modes */
240 for (i = 0; i < RADEON_BENCHMARK_COMMON_MODES_N; i++)
241 radeon_benchmark_move(rdev, common_modes[i],
242 RADEON_GEM_DOMAIN_VRAM,
243 RADEON_GEM_DOMAIN_VRAM);
244 break;
245
246 default:
247 DRM_ERROR("Unknown benchmark\n");
248 }
249}
250